Unreal Engine 5 - Create Zombie Survivor FPS Game

1. Course Introduction: Do you like all those cool zombie survival games? Have you ever wondered or dreamed about creating your own zombie survival game? But always something stops here. You don't know how to code or create 3D art. Now, in this course, there is no need to know any coding language like C plus plus or Java. We will use the completely cordless and rearranging pipe blueprint system. We are going to create a complete zombie survival game prototype by the end of this course. In this course, you will learn how to create first-person character from scratch. We're going to add weapons, movement, animation, sounds, muzzle flashes, and everything that one FPS game needs. After our first-person character is completely setup, we will start the fun part, making our own zombie AI from 0, you will learn how to create behavior trees, third person animations, great zombie brain, including haunting around the level, chasing our player. In the final two chapters, we will add m OPEX help x, and we will define the game rules. When you complete this course, you will have a full zombie survival prototype like this one. So if this looks interesting to you, don't hesitate. Enroll now and let's shoot some zombies. 2. Downloading Assets: So before we start working on the game and we need to download these maps. So we'll be using CT sample, basically unreal sample project from their matrix demo. And to download this, we're going to go to our epic browser. So let me pull it up to the main monitor. And from a previous video, we just installed and launched the launcher and then installed some Android versions. And to find our samples, you can simply go to this sample stab. And in here you're going to see bunch of stuff. You can, of course, of course, scroll down and see all the stuff that they offer. But we are mainly interested in this city sample. And it's pretty straightforward to create search. You can just click Create project. It will ask you, in vitro folder you want to put this project in, and that's about it. Then it downloaded it for you and install. And it will take a long time since this, this project takes around 100 gigabytes, think a bit less, but 90 or a 100 gigabytes. So it will take some time, but after downloading, you can open it up. So if the matrix demo is too big for your computer and you don't have 100 gigabytes, you can go in the marketplace, go under free. Click on the permanently free collection. Wait a little bit and go on the second page over here. Let me go to the second page. Here. On the second page, you can use this rural Australia. Also, you can use the downtown modular pack or this one, city park environment collection, which is pretty good. It doesn't matter the environment pretty much that we're going to use in this video. But if you don't have enough storage for the matrix demo scene and if your computer can not support it, I highly suggest you that you use one of those three. But this one, the CD park, I think, is the best solution for you. So don't stick with the matrix demonstration. I'm going to use the metric demo scene because I think it's pretty cool. But my computer can handle it. If your computer cannot can do it, Just use the CD park environment collection. This is my suggestion. And what you'll need to do to kind of open this map that I have here, which is kind of more performance since it's a smaller version of their really big map. Usually due to operate is just go here. Click on Levels. Filter only the levels from the content browser. If you don't have this content browser open and click Control Space to open it. And it's called contra power. And if you worked with earlier version of Unreal, you wouldn't have that. So that's kind of a new feature. Or you can also go to Window content browser and just open one of the brothers. That's what I have here. Basically, I've filtered by levels. We're just going to type Smart City. And here we have this map and you can open it up and it should be way more performance. And if you have some issues with lag, you can just turn scalability to medium or low or something like that. So yeah, that's basically it. This map will only work until five. So if you're trying to use the antidote for Central, that you might have some troubles opening this up because I don't think it's backwards compatible. 3. Night Time: Now let's try and edit totter since we have a night scene instead of this midday ones. So first thing that we're going to do is find these BP night mode blueprint and we could delete it. But for now, I'm just going to disable a few of the events. And the reason for this is that BP night mode will start to automatically change the weather when we play the game. So we don't want this to happen, so you can have more control over it. Next thing I'm going to do is just audi electrolytes since we won't need disliked much. You can see it a bit in here and on the buildings sensor tonight you don't get much of that direct harsh lighting. So for now we're just going to put it to 0. Next, important things is that we need to go into these processes. We tried to change some stuff for us globally. And we want to change this because we want to have our scene without some harmful exposures. So exposure to basically brighten up or darken your scene. Making an effect of your eye adapting to light or lack of light. So we want to disable that so we can type exposure. And let's just disable everything in here. And then let's do the same here. So here it's already done. And then we have it in here. Here we go. Just want this exposure compensation and Min and max. Let's put all of this to one. I can see are seen as a bit over lit. But we're going to fix that when we go to our skylight and highlight kind of gives us that overall the lighting, kind of indirect lighting from the sun. So we had the direct light and then we have this skylight that kind of light it from our sites. And in here we see this 50. So that's a bit too much for us. Now. As you can see, we have full control over our writing. And I think for this maybe 0.3, we should be fine. Yeah, so this does not look bad. The next thing to want to do here is you want to play around with the sky. So if you click on the sky, we see this asymptote. Well as disabled that sky is still a bit brighter. That is because we have this exponential height fog, which is basically adding forgone light for go over some distance. Or I guess exponentially. So let's click on our fog and try to darken it so we probably don't want complete darkness of the fox. Is this kind of complete dark, but maybe something like this. So you can kind of see some light on the horizon. And this is kinda fine. But you can work more with this. Maybe we'll leave it like this, but we can also work more. If you click here and go to visual effects. In here, we can find some stuffs so we can add the sky atmosphere. I don't think we have it in here. Let's see. Yeah, we don't have it. There is also another tool that's my fixer and it's called environment light mixer. And this kind of Andrew's way to kind of quickly help you add some stuff in your scene. So it automatically detected that you had direct flights, skylight and exponential fog. And it kind of lists too helpful in here. But another thing you could do is click Create, created a top. So these alarms like Mr. things, you will need atmospheric light, sky, sphere and Volumetric Clouds. So let's just create volumetric clouds in here. Now we have these clouds that kind go over the sky and they are maybe a bit too light for the night tonight. So I'll just type the Cloud and find our volumetric clouds. And let's see if we can kind of play around with some settings. So let's do the groundwork Beta. This is probably for the shadows, but we probably won't see this because we don't have the directional light here. So let's look at the clouds and first theatrical changes. The height of our class. We can put them real low or high. We have this, this is kind of the, the thickness of the clouds, so it's not the height, but I want the class to be really thick or not. And that's kind of it for the clouds. I think this is related to the planet radius. So if you have a 3D planet or kind of a sphere of the planet, you can calculate change if you wanted to go all around the planet. So we would have to determine the radius and kind of play around with. But for now we don't actually need that. We have the material of the cloud which is kind of high. It's hard to preview. But let's try to change this a bit. And we should see change in the albedo. So this is something that I would like to change to make it a bit darker since they were a bit too light in the beginning, but I still don't like the look. They look more like smoke. So to change that, Let's make it a bit more bluish or something like that. And let's also change this. And we also have the wind vector a. This is kind of how fast I it will move in certain directions. So RGB, which will be x, y, and z. Let's leave this one for now. This would be the details on how to create the nighttime in city sample. So keep in mind to kind of start editing the lighting. You would first have to set exposure TO one just to make it easier on yourself to recreate it. And you have to disable this. So when we click Play, it doesn't edit it for us. And also forgot that I think the sky dome will have to delete this. So let's try and delete it. Let's delete them and click Play. We can see our sky is fine. So before we had our sky dome that we just hidden the editor, but it was actually showing inside the project. It's kind of the basics on how to create nighttime. In matrix each sample. 4. Setup The Game Area: So now that we have CD sample downloaded and open, Let's create a duplicate of this map and then kind of get it ready for our shooter level. So first thing first, I already created duplicating, named it custom app. And the reason for this is just for the sake of time sensitive to take a long time for this level to duplicate and open up. Basically, to do this, you will just pull smart city level and just hover over an empty spot. And it will ask you if you want to move it copy or advanced copy and you'll click on copy. And just to just create a duplicate of your level. This faith, we kind of screw something up. You can always go back to our original level so it's foolproof. So now if I put it here, if we can see Move Copy and advanced copy, and you should just click on Copy. So now that you have this second level, before we go into it, you can click, right-click and then rename. Right now I cannot click it because I'm inside the map. After you do that, you should see something similar. Maybe in a bit higher quality. So I changed the scalability to medium just so we can get smoother experience. And you can do that too if you have any performance issues. If you also see here it says something like streaming pool and there is some number. That basically means is that your video memory is foresaw, or at least limit is false. So what you can do is click or open up coastal command and type streaming poor. Click on swimming pool size. And in here we can set maybe, I think default is 11024, we can do 2048. And this way you should increase your strength both sides. But of course you can kind of matrix similar to your video card. If your video card number is maybe 4,096, you cannot put it or more that basically, that's kind of basics, basic for this level. Now if we play, we'll see we can actually do that. Let's click Play. We should see our character and we should be able to kind of walk around. And this is all fine. Of course, we are going to change the main character. But for right now we can live with her where she is. And that's kind of the basics. In the next term, we're going to play around a bit with the lighting. So how can you get different lighting modes? A bit with post-processing. So how you can get this kind of matrix field, stuff like that. But yeah, that's basically got to change how this level of fields when you play with it. Another thing is, in our world production, if you have any problems again with, with lag and stuff like that, you can open a real production, which if you go to Window, we can find here I'm going to partition. This will give you these styles and these tiles for you. What is loaded then not loaded in your level. So right now if I go to the edge, we can see here are pointers shown us to where we are. If I go here, we can see nothing is loaded after this. It's the same in here. So we have this white tiles and everything in this vitals is loaded. So if you have any issues with the performance, you could select maybe, maybe these tiles around and then click, right-click and then unload. This way, we're just going to have these four tiles in the middle. And then you can work with that instead of all of these different types which will increase the performance requirements. 5. Duplicate Objects: So now let's do a bit of a level design and try to block out the area and close it off so our character cannot freely walk over the map. So first thing that we need to do is just kind of limits the areas. So I think the area before it was a bit too big for what we need. So I unloaded all of the cells around except these four cells. So we can have only this area to be playable, maybe even too big, but for now, we can recreate it. Tunneled your cells. What I did is just selected cells that are loaded. Click, right-click and then unload select itself. You could of course leave them there, but then block out just the part that you need. But this way you can kind of be fair which parts you are working with. After you downloaded the cells. Let's start working in the level. So first thing, first, to move around in the level, you can hold right-click and kind of look around. And if you could click AWS, say D, You can basically start kind of moving in the level. Basic like a flying object in a game, you can kind of cruise in the level. Next thing, if you hold Alt and then click right-click, you can move forward and backward. And if you hold the left-click, you can kind of look around this more traditional modelling tools. And if you hold middle click, you can pan left, right and up and down. So that's kind of more, more traditional moments style, but I like these, these free-flowing Cruz type movement. Now that you know how to move, Let's try to add some blockade here, so character cannot go in here. So let's click plus in here. Go over to the shapes, and let's pull out the plane, and let's put it in a level. Now the plane is way too small, so we'll need to increase the size. And to illustrate the scale, you need to go to these details panels, which you should get when you click on an object. If you don't get it, you can go to Window and click on Details and then you can have up to four data panels. I'm going to click on that, go to scale and type a number. I found 40 to be a nice number for this, I should click the WA or R on the keyboard. You can quickly scroll through the different types of manipulation of the object. W is this movement or translation of the object that is moving it up, down, left, right, forward, backward, or x, y, and z. And then on E, you go into the rotation mode so that we can use this to kind of rotate in place. And you can also scale it from here if you recall. But it's less precise here you can type in exact values. So depends on what you're doing. One will be more useful than the other. And of course, you can access all of this in here and you can also just go into selection mode if you don't want to manipulate an object that you click on. Now that you kind of put it in place, you will need the material. So let's type brick. Just find one of the materials and put it on object. So this is kinda just make it look decent and then also block out or character when we try to go in there. And this we can do on multiple parts. So now that we have one object, we can hold Alt. And if we pull, we can duplicate the object. So you can see it's still in here, but just have a duplicate in here. And you can see that the back is see-through, so we want to keep that off so the player can not ever see that side of the object. Let's see if you put it in the right place, maybe something like this. So Altis, one way to duplicate the object, maybe you can put it to you in a bit higher. Another thing that you could do is click right-click in here. If you go to edit, you have this duplicate. Or also control the which shows in here. So there is multiple ways. I think the ALT is the easiest one because you can do it too while you're manipulating objects. If I click E, it will also work if I click E and then hold out. If I move any of these axis, it'll create a duplicate. And as you can see, it left the original volume here. So depending on what you need, it can be really quick way to just duplicate stuff. So now that we know that let's call it out, pull it in here, set it in the right place. That's fine. Let's put it in here and let's move it elsewhere in here. I don't think we can pass through here, so means we need to close out this part. So let's see how we can close this. Maybe leave it in there and then create, duplicate and rotate something like this. Let's duplicate this one since it's not rotated. Now let's find, I think there is one more place, but let's see. There is this. Let me just see if replaced. They're not. It's if the object has one-sided material, you can maybe sometimes. Sometimes it will be harder to see if there's material or not. So we feel that place and that's about it. Okay, so let's hold Alt again and just duplicate. This way. We have Oliver areas blocked out. Our character cannot move. So the subjects that metal casket difference. So now our player cannot move outside of this area or even see what's outside, which is nothing right now. And yeah, this is kind of the way that you can manipulate your level and edit it in a way that suits your project. 6. Organizing Assets: So now let's add some acid star project. So first let's open our content browser or not content browser epic launcher. And then here we can see our Vireo versions. And the first thing that we're going to do is go to marketplace. And let's type in those three ropes. And we should get this industry prompts back. So this is the first thing that we're going to add a project. And you can see this button out the project and then you select it. You can find our production, which you see the sample. Now you can see for me that I already have this content added. Click the project, you'll have it downloaded. So let's try to find it here. You can see it in here. So we're going to use this to basically populate our project. To add some stuff since CD sample or matrix at the sample has some stuff already in the scene. But since we are making it more compact like a smaller area of the city will be visible. We can add more and more detail. So this is what we're going to use it for. Another thing that we need to do is just organize our staff a bit. So I added some new assets that you're going to use it use, and that's this FPS games. So if I go here, this is a new folder. And to create a new folder, you can just click, right-click and click on New Folder. And here you can add all of your new assets to make it easier to to basically organize. We can also maybe put disinterested props back in here, but it's not necessarily sense if you have it in here. We can know exactly which plug-ins or assets we add the term marketplace. And then in here we can have our custom characterised by Parnes map, stuff like that. Another thing that you can do is if you go to the marketplace, Let's look back. In here. You can search anything that you want and you can basically try to download it. And I sell products if I type environment. And you can see everything that is in here, but let's say we just want a free stuff so you can click Free. And in here you can see everything at is free with your search. Another way to search for assets would be to click on free or have around three tab. And then you can clip cap of games content-free for them and stuff like that. So if I click Epic Games content, we can see here every in the topic specifically added to some kind of examples or their metal humans in here I think they also have their paragon acids, which are high-quality assets from their game that is no more in production. You can see it in here. And they are really high-quality. So if you ever need some high-quality characters, you can search it in here. And you can find a euphoric fantasy or sci-fi characters, so you can find them all in here. Okay, now that we have added this and created a new folder, the first thing that I did is just move the customer app in here. And you can do that too just by just pulling stuff from one place to the other. Now the reason I did this before is because it's a kind of takes some time to do it. For example, what we could do is, let's say for some reason we want to migrate is subject to a new place. We can just do this. And then if you click More here, it will move our asset to another place. And it will also fixed reference sense this, for example, this asset or references some textures since it's a material. So that's kinda what I did with the map, only takes way longer. After after I moved the map, I also had some customer service that you have some access to later, but their weapons and characters. For the weapon, we have this AK and we have three simple materials. To import this. You just, you can click just import and find our folder. Or what you can also do is just open the folder where you have all of your stuff. Let me see if I can show it here. So you can just open a folder and then just click on the asset that you want. And in particular here. That is another easy way to do this. After you add your assets or when you click to cover. In here, it'll ask you to click on some input settings. And for most of the stuff, you can just leave it as it is. But let me open up a character and show you something in there. Let's say you want to add some new animations and you have animation FBX. If I try and hover animation here, but you have to do is first disabled materials and assemble textures and students on time for that. Then in here you just want to disable important mesh. And then in here we want to select the appropriate mesh for which urine mentioned is used for. Right now this is not right since I'm importing the animation for our arms. So you have to change this TO AK-47 arms. But this kind of example, if I click Import and maintenance will be imported. And after I imported this material is empty, so I had to import my textures. And let me flip in mind material. And in here there is an easy way to just input materials. You can just select multiple of them. Then just move and hover and there'll be imported quickly in here. Of course you don't need them. We don't need them here. I just see these two. And our roughness needed just to be inverted. Sometimes you have to do that and to invert your texture, you can just click, Right-click and type one minus in this node best to just inverse. So if it's, let's say a light gray, it will convert it to a dark gray or black to white or stuff like that. And then you just connect. And if you click on one of the nodes and you have multiple nodes that have multiple textures inside of them. More compact, you can just read how they are set up. Usually, you've named them from left to right. It will be RGB. So we have occlusion, which is unbent occlusion, so that's r. Then we have roughness, which is our roughness, and then metallic, which is metallic. And they go basically RG and B. And the last one is not on the map. And for most of the stuff, I did the same thing. The only special thing would be the arms, where I added my animations. In here we can see some animation playing. And the rest is basically the same. So if I open my arms so you can see the same texture, same setup. If we go to, let's say female zombie. You can see same thing, same setup only thing that the materials for this asset will be different. So if I click in here, you can see that this material on here, the metallic and smoothness. And smoothness. If you ever see the smoothness or glossiness, it is the same as the roughness only inverted. So in here I just had to endure that also. Usually don't have to invert acid roughness, but depending on, on software that you're using, sometimes it's converting France of software to the other. You have to invert some masks and some things are named a bit different. But you can see here metallic and smallest one is the other issue. And that's about it. There. Let me click No here. And in essence that is about it. So we also have some muzzle flashes, which are not that important. That's basically something that you might use for our guns. And another thing, if you're a moving hold folders, you might notice that when you move your folder, Let's say I move this startup in here. It might stay in here and then you have to startup folders. But if I open this one in here, it would be empty. And the reason for this is radioactive. It doesn't mean that this folder is empty, but there is an invisible file that basically tells this folder that some file is removed. So that's sometimes styles. And to fix this, you just click, right-click and then fixed separate directory folder. Now that we created, all of these fish have a nice structure where we have our marketplace assets and our customer assets in our FPS game that are all in one place and we can easily work through them. 7. Editor Overview: So now let's kind of go over some basic movement and editor options that we have. So open your map and try to just click and hold right-click and see what happens. So this is the basic like locked view or locked position camera view where you can kind of look around but stay in the same position. If you hold left-click, you can just kind of go left to right and then move forward and backwards relative to where you're looking. And try to click right and hold it and then click left-click and try to move around and it'll start pairing. And this is kind of simple way where you can only or just use your mouse to move around while they're holding the left and right-click to try to just release the left-click. And now we're again looking around, click, click, and then we append and again, hold only the left-click. We can move forward and backward. And also we can use middle-class Japan if we don't plan to hold the boat buttons. So this is one way to kind of move around in the level. Another thing that I like to use is W, SAD if, if that is easier for you. So this is kind of more gamified view to move around where you're flying objects that can basically go anywhere. So while you're holding right-click, you can just W SAD. And that's kinda the basic thing. Another thing if you don't hold luckily, but just click, you can select any object in the scene. So if I click in here, we can click on the car. Let's see if we have any object in here. And if you click on the object, wanting that to happen is you have this salt finer and you'll have your objects selected. The outliner, basically frogs are the objects that are in your level currently. And after you click on an object, you will get these details panel opened, which gives you all the details for this specific object. If the object is on Blueprint class, you will also go to this option to open the blueprint is currently selected. So if I click this, you can see this blueprint, this opened. And in here we have three tabs. One is viewport, the other is Construction Script, and then we have an event graph and graph. This basically I place for you, you're going to put all of our logic into view. Parties just a place where we can have all of our objects of static meshes and objects that you have, your blueprint or static meshes are created usually inside the van, real or not inside but outside the boundary layer in some other software is usually created by an artist and important in Unreal. So you can see here that if I double-click on this selected object, just a static mesh. Static mesh, meaning it doesn't have any bones so it cannot deform. And it also has some materials. We can double-click open it up. And this is actually material instance which, which gives us a trial to material. Meaning that it kind of get some properties which you can customize, but you cannot customize all the nodes. Let's double-click it again, double-click and double-click again. And this is kind of the base blueprint. So everything, all of these are different materials are created from this original material and then you can create variations or add on top of the original material. It gets a bit complicated on these big projects. But if I close this up and minimize this and open up our project, you can see some really simple material which is argon. So we have this output, which is just the result node. And you have all of the different ways that you can view your material. And then you have your texture, your albedo color texture, similar, different textures for the glossiness. And then your normal for faking detail. And it basically usually they're named appropriately, so you can just put them inside the right right nodes. Another thing to make your life easier is usually if you have some object or an asset that is in the Content Browser, you can find this magnifying glass that if you click, it will usually lead you to where that material is. So this one is inside the instance material, barricade prop and then content. So that is kind of an easy way to just access something that is inside something else. Also, if we look in here, we can see that this static method has this magnifying glass. So every time you see this, that means that it is in the browser and this will lead you directly to it. Another thing that we need to go over is this. If you click in here, a drop-down should pop up with some tabs. And the one that we're interested in is this Level Blueprint. And in here we have the same logic that we looked at before. So we have our Event Graph. We do not have the viewport because the library is kind of RW part. You can look at level like one big main blueprint and then you can kind of hierarchically put some stuff inside of it and then on other stuff inside of that. So if our level is one big Blueprint, then this one is kind of another blueprint that is put inside a level. And then inside this blueprint you can have other blueprint, stuff like that. So you can kind of create a hierarchy at this level. Blueprint can reference anything that is inside the levels. So at any point, I can click in here, click, click, right-click, and then create a reference to our ground that I just clicked. This is one place that you will probably use to add some logic. And the other blueprint would be characters may be some objectives if you have collectible stuff like that. So that's basically what you're going to use to add some functionality inside their game. 8. Placing Actors: Let's now go over some stuff related to Andrew, this hierarchy or classes. So I'm going to go to our FPS game. Here. I'm going to click, right-click and then click Open class. And here we can see some basic classes in Unreal. If you click our classes, we can see every class that is present in unreal. But we can see that if you click on this drop-down menu, we can see that there is more classes are shown when we click that. The reason for this is that some object inherits from our other objects and which kind of creates a relationship got to call the parent class relationship. If you click on actor and click Select. Now we created a simple actor, actor blueprint, or a blueprint that can be placed in the world. So if I move this, we can see how we can just place it in the world and it has its location transform. We can rotate it, stuff like that. If you open it, we can see simple structure where we have our blueprint and then we have our default scene root. And then we can put anything in here that we want. The next class that we are interested in is this Pawn Class. So if I type Python, we can see this point is actually a trial of an actor. That means that **** inherits everything that actor has, and then it adds some, some of its own logic. So Actor basically lets an object transform. It can be placed in the world, manipulated, and it can also hold other objects inside of it. And **** can be possessed or receive input from a controller, which means control can take control of the poem and then whatever you click on your keyboard, stuff like that, the point will receive it. Or you are kind of the mind of that bond. If I click on the panel, click select, and open it up, we can see that everything stays the same, but we have this on possess the unknown possess. So what happens if some patrol possesses this Uponor? Controller stops possessing this control? What happens? So that's something that you will not see in our actors. If I open this clicker here type process, we do not see those two things in here. So there is some new functionality that we get in our pond sloping. Now, we could use upon to create a character because we have basics that we can use, which is we can possess that the **** and then we can also add our own controls, gravity, stuff like that. Now, we couldn't do that with an actor, but you can do it for it upon. Now. It will be a highest love to do everything from scratch for the, for the characters. So what you can do is find unreal template for a character which is inside actor in Saint Paul. And we can find in here and what this class out as is. So it can be put in the scene. We can, we can basically figure out what this class can do based on the hierarchy. So we know it can be placed in the route because it's a child of an actor. We know it can be possessed by controlling because it's frowned upon. And then we can hover over and see that it includes some ability to walk around. Now it's a bit more complicated. That description does not cover it, but we have these simple setup. So our character has a capsule. This capsule is used for collision with the world since using the collision on the character would be way too expensive and hard to use. Use kind of simplified version, which is just a capsule around the character that the character move around. We have on our component that you just referenced to wear for this. Then we have our mesh, which is where we put our character, our animations, anything visuals. So for the logic and the physics, Demetrios, invisible, at least for this character component. But for any visuals capsule and is invisible and the outer components, so there we do not see them unless we specifically try to enable this to be visible, but we do not see this. So this kind of evil, this is more logic-based for the physics. Then we have our character movement component. And the component is something that can be attached to a blueprint. If we have an actor, actor could have a component that is a camera actually can have a component that is something else if I click odd. So you could have like a sphere Component, audio components, I forget that. So blueprints can have a component, but they also have the inheritance structure that we talked about. Where our character is actually a child of a pawn, meaning that the character is also upon. So if I click, right-click here and type possess, our character has all of the functions that upon has and add some new stuff. And then point has aldi. Staff that actor has, but it adds some new stuff. So that's kind of a hurricane. The component can be attached to blueprint, but it has its own functionality. And this character moment component basically is an ideal solution for the character and has much more than just movement. So we have our walking, jumping in, falling, network stuff, swimming, flying. How the subject interacts with physics. There is bunch more stuff that you have in here that you can basically just tweak a bit and your character already could be working with some basic blueprint to have to add them later, which we are going to do. These kinds of basic hierarchy. And the components are important because you can create your own custom components and add them to your character. If you want, you could create like a component for, let's say figuring out maybe staff relating to cook, collecting something may be items, stuff like that. So you could add your own components and then build your character from there. Or you could also create your own hierarchies from objects and other decadal a player, maybe I want to create a trial from this so I could click Create Child Blueprint, which means that parent of this class is actually my new blueprint or my character. And the parent. This blueprint is just an instance of the character, meaning that this parent classes character, but anything that we add in here will be reflected here. So if I click out cube, compile and save our blueprint or a new trial blueprint will have everything that this, this guy has. And we can add some more. So there is kind of a hierarchy that you can build with your own custom, custom blueprints. This is kinda the basic hierarchy that you should be aware of. And this is a good way for you to figure out how different stuff in here works. There is some other important blueprints like Game Mode. So if I type game mode, we can see that we have an octal, we have info. So it says that this has this base class of an actor that isn't met her physical protection. The virus is present for the manager type classes. So this in for his trial of an actor, but it doesn't necessarily have any representation in the world, but it has to have some underlying structure of the actor and things with district and create something like a game mode. So if I click on gamma base, click Select. This is usually used to be attached onto your levels. If I go to rural settings, in here we can see Game Mode. In here. I could select my new blueprint, one. You can see it in here. And it basically holds some information related to your current mode of the model that you have in this level. So let's say you have like dead metrics that much, that much more custom roles. You'd probably put those rules and how you calculate some stuff. The score esophagus, you will put it in a game mode because Game Mode is safe to use for multiplayer games because it is only existing on the server. So there is some stuff I get. So there is a lot of stuff that you can just figure it out by typing here. If I type controller, you can see here controller, which we can create and then add our default player controller class. Meaning that when the player drawing is this map, he'll be given this player controller, which maybe has some inputs when you click something, or maybe some rules to respond and it needs to possess stuff like that. And you can of course see the structure. So a lot of objects are derived from actors actually is almost as base classes, the object, but the object is the true base class which everything derives from it. So if I minimize the objects, we can see that everything basically disappears. But yeah, there is bunch of stuff, but for most things you won't be won't need to know it. Since there's some very specific stuff that you'll probably never use. Here. We can quickly see active components. So if I open this, it's called new blueprint tool. You should be able to now go here and type a new blueprint to. And you can see that we can add this component and this component might add some functionality to our blueprint. So yeah, that's kind of the basics for how Bowlby's work. 9. Object Hierarchy: Now let's see how we can place actors in the libel and manipulate them. So first thing that I'm going to do is let's go up and click on our skylight and I'm just going to increase the brightness. We can see everything a bit better. Now we can use our industry props back. And let's click on meshes and let's see what we hear in here. And let's try to manipulate and put it in the scene. And it's just going to be for the test, not the start. To start at a level editing. So first things first in your browser to add an object in your scene, you just need to click and hold the object and maybe wait a second sense our mesh is not compiled and put it in our level. Let's wait a second. So DMF needs to be, or shredder needs to be compiled to. This only happens first time that you open, reactivate the mesh, but after this is done, it will be cached. And now every time you open the project, it will be fine. So let's delete it and now let's try to put it in sin again. So first thing that you'll notice is that it is snapping on the surface where I'm hovering over. And that is basically Andreas, I'll just snapping feature where it kind of helps you to play subjects who don't have to. You don't have to place it into the floating into the air and then try to position it so I can just quickly position it wherever I want. And another thing that we can look is that our floor is nicely snapped, but let's say we put it in here. Then we have this problem. And figuring out how exactly to place it and not overlap, it might be hard. So one thing that you could do is move our object a bit up and then click Enter on your keyboard. And what will happen is basically your object would just fall to the ground and try to snap onto the bounds of the objects. So this is a good way to just quickly put something on the ground without thinking much about it. Another thing that you can do. So let's say that we select some object in our content browser. In our outliner. Let's say we are not sure, very subjective. So let's say right now we have this box, select the treatment and we don't know where it is. A quick way to find where your object is to just click F on your keyboard, which will automatically focus on your objects wherever you are. So if I'm, let's say over here I click f. Let's just focus on my object. And when you are focused, if you hold Alt and click left-click, you can just go around your object or hold Alt and click, right-click and you can zoom in and zoom out. And which kind of can quickly help you to get that classic field of manipulating an object that you will see in other software. Another thing that you need to go over is the gizmos. So here you can see the arrows every time you click on an object will get these arrows somewhere. So it's, it's kind of a pivot of the object wherever they the middle point is set or the point is set on the objects. Depending on the object, it might be in the middle or it might be at bottom part. So you can see for this object it is set in the bottom. So when you're snapping onto something, it will attach automatically where it needs to be. So this is a good thing when you try to pull an object in the scene and just let the unreal out of place feature set the objective in the right place. If this was a bit up than our objects would be in the ground a bit. So that's where you find the period. And you have these three arrows and each row represents when I access from the 3D plane, which can also see it here because this is a global view. You can orient yourself with a various x, y, and z points. So be careful of Louis XV. Green is y and then x is red. And if you click on any of these arrows, you can move it at the appropriate taxes. And you have this white circle in the middle of which basically lets you move out three-axis at the same time. Let's click Control Z. And then you have these lines in-between that basically let you just move it on two axis. So this is really good. If, let's say we have this objects on the floor, we want to move it on x and y, but we don't want to do maybe this. We can just click in here and then you can just move it down to this kind of colliding onto the surface and more easily, it gives us more options to modify our object. Now, quick way to change your Gizmo is W, E, and R. So if I click ENR, We can see how we change our gizmo. And if you click E, we get this gizmo, which basically lets us to rotate. Our object. Basically works the same way. We clicked on the side, but you don't have anything in between. So we cannot rotate it to the two axes at the same time. And then we have r, which looks more similar as the first gizmo, which is basically our scale. And you can of course, scale everything uniformly, or just two axes at the same time. So it's this back. Now you probably noticed that our object is snapping when you try to move. The reason for this is that we have are snapping enabled. If you disable this, we can see our object now moves smoothly over our surface. And this can help us kind of more position stuffing the real-world. If our game is not minecraft like in the real world, everything is kind of misplaced, rotated a bit so we don't have perfect angles. You can use this to better position your objects. Let's bring this back. We have the same thing for the rotation. If I click here, you can see sniping at a ten degree angle. And of course we disable is it's smooth rotation. You can view all of this if you go to our Details panel. And when you have your object clicked, you can see everything in your Transform tab. And if for some reason you don't see these details panel, you can go to Window. And in here we have details and then d does. And this will basically open diseases panel. And we can actually see what happens when we try to move our objects on the two axis, we can see how our x and y is changing, but our z is not same extinguisher for scale. So for scale, one means it will just double in size, is 0.25 minutes. That knife, you try to move it just one step up. It'll be 0.25 or larger than the first one. So it'll be 1.25 the scale. And we can see it in here. So it's going to z. So that's basic, basic object manipulation. You also have in here this select objects. So if this is, if you don't want to see, the kids may just want to maybe select objects, search where they are, maybe analyze something. And then you can right-click or WE IRR on your keyboard and more everything. And you can use Q if you want to go to the select objects, I usually don't use it. So W, E, and R, because that's another thing that we can look over is this coordinate system. So if I click on movement and try to rotate my objects, you can see that now my object or my gizmo is a bit rotated. The reason for this is that now we're looking at an object in local space, meaning in the object space. So this rotational velocity be applied on the gizmo. And this can be helpful if you want to move your object independent of the world rotation. So if I go back, we can see here how I cannot move it in this direction of the box. But if I go to local coordinates, we can, maybe for some reason I rotated there is a wall and this needs to be kind of going up and down the wall. We can see that this way we can kind of get more precise or smooth and moist in the world. While in this move, you'd have to do something like this. There is some practical uses, depends on what you want. Depends on what you want to do. For now, let's reset our rotation. And other to move this box a bit, the useful for Caterpillar and embrace and so to put it to the floor. And those are basically most of the useful stuff. You also have the camera. This is your canvas speed. So when you are moving like this, if on this slower or faster, we can also move your mouse scroll wheel as I'm scrolling forward or up and I'm getting more speed. And you can also click in here and change your camera speed if you want to traverse your level faster or slower. Now, the last thing that we're going to go over is grouping how we can group your objects. So let's say we want to add a box on top of this subject. Now let's rotate it a bit and we can stick. Our pivot is not exactly on the bottom of the box, so you get kind of see-through and we don't want this because as you can see, this happens where we can see through the box. So it's more readable the top and then click End, and hopefully this is well-placed, that is good. Another thing that you can do to make your life editing the level easier is if you have objects that should move like a group. So that might be, Let's say these subjects, you can see here, when I click there, just one object. And this is called packed level actor, but we won't use this a bit more complicated. They use it in the city sample to combine multiple assets. So here we have probably like ten assets or something. But if you have multiple assets, which you can do is click on massive hold Shift and then click on the other. And now we can see that the two are selected. But what you can do is click, right-click and then click group. And this way, if I click outside of it and then click back again, they are grouped into a kind of wanting. So every time I tried to select it, we're going to, we're going to get both of them. And of course you can click, right-click and then ungroup or unlock. But we do want to carry it combined. Especially for something like this, if you want to have, are just groups grouped and then duplicate it on multiple places in the levels. So let's say I want to hear another type of this object in here. What I could do to duplicate its holdout and then move on any of the axis. And I'm going to create a duplicate. And now let's say we want to rotate this, put it in here. We easily create a duplicate without putting these objects again and trying to set them up the same as it was in here. Another way to duplicate would be to click, right-click Edit and then duplicate or click the shortcut Control D. Now I really like this metal very holdout and move because you can easily just create multiple duplicates really quickly. So as you can hold Alt while rotating, creating a duplicate. This we can just really quickly work in your level. Combined SAT. And of course you can add another object in here, click, right-click, and then combine or right-clicking group. So we can add more objects into your group. So yeah, this is kind of the basics of editing and manipulating objects in real. 10. Chapter 02 Introduction: So in this section, what you're going to do is we're going to add the movement to, to our character. So we can see that we can move forward, backward, left and right. And you can see we can look around. And you're also going to add this camera and you can see how it's nicely set up with our hands. You're also going to do some abilities like trumping. Starting with the animation blueprint for the character. So this is going to be a fun section. You can see that we are going to actually start working with a character and start adding some mechanics. 11. Creating The Character: So let's start creating our character. Let's first go into our content and FPS game here we are going to basically keep all of our meshes. So let's go to characters. And we have this main arms, which we are going to use when we create our character blueprint. Go to Character and click right-click. Here, we can click the blue button class. Then we're going to click character and character, if you remember, is basically a trial of the poem so we can possess it and it has some movement options that you'll help us basically move the character. So let's name it BP character, or let's name it BP FPS character. And let's open it up. Now and here we can see a few things. So this blueprint character comes with some pre-made stuff, which is capital components, which is also the root component, meaning everything else would be attached to it. So there is kind of a hierarchy that is created when you started adding stuff into your blueprint. An object has to be a real components. So this capsule component is root, and you can see that here where it transform has only the scale. And this scale scales every day that is attached to it. The capsule, the computer does not have to be throws component. But for a character, it is set as default because the character has to have some capsule that you manipulate. Moment when you go forward, backward stuff I get because you don't want to have mesh itself be the event. The next thing is the arrow. And the out of just points to y. Where the forward these and mutually. In other management we will use X as follows. If you look here, we can see that x is pointing the same way as the arrow. This kind of further evidence when you put everything in here and you never you never confused where the Florida's. Then we have this mesh. And by the way, these components are already in the base character C plus plus class. That's where they are added. You can see here edit in C plus plus. That means that we cannot delete them from here. So they are kind of set by default. So if you don't want to use them, you can try to maybe disable or something. But foremost characters, you will want to use these three components so they're automatically added here. The character component is where we'll put our arms and it's basically just the visual skeletal mesh. So we talked about the Static Mesh which cannot be deformed. And then we can Skeletal Mesh where if I click here, we can see all of the skeletal methods that exist. Here, our arms, they have bones. So if I open it in here and then go to Scott and three, we can see all of the bones that are from which this hand is created and I can rotate it and those bonds and the foreign, the mesh in this kind of difference between skeletal and static measures. Let's close this in here. We also have this animation class, which is where we're going to put an unmeasurable bit so we can manipulate, which really makes me it's currently playing on our mesh. Last thing that we have is our Character Movement Component that you talked briefly before where you have other stuff for movement. There is some default settings. So after we add some logic to our character, it would already by default have some options for movement, but we can further customize it. So how far our character can trump? What is the max speed of the character or how hard it can slow down the gravity, stuff like that. So there is bunch of stuff that we have in here that will add it later on character. We also have this event graph, and it basically works like C plus plus. So the structure is the same. So you add some nodes and then connect them from the other. And then when you click this compile button, it'll try to kind of convert your logic of the blueprints into the logic of the engine that it can understand and understand the same thing when you try to compile or build your code in C plus plus. So the same logic applies. So you click Compile and then everything is converted and you can try and play. Your player game should work with the new changes that you added. Now if we add this character into our game, what we did here is created a new instance of our class. So this kind of our default class, like a template or blueprint, that kind of defines how this instance we'll look by default, but not Italian instance in scene. I can change, let's say the the marriage that it isn't here. But if I open my blueprint, we can see that the mesh is not in here because the class defines the default state. But if science can be changed later or at runtime. So that is what happens when we add the incidence in here. And of course you have your editing blueprints. So this is when you see any of the objects that it says edit these papillae, that basically means it is a class that takes you somewhere and can be edited. Now that we have this, let's just do the one final thing. And that is add our hands in here. If you click on the mesh, click in here, we can do our arms. For now, let's leave it like this. Wisely, these listed here since we're going to add our character in another way. 12. Adding a Camera: Now that we have the character created, let's try to put it in the game. So I showed you one way that you can put the character in the game, which is if you go to character, you can put in your scene and then you can type possess in the details. And then you can cite said possess player 0. Now in city sample, this won't work because our character is at Motley spawned from our game mode. So if I click in here, I can see that our game mode is set to city sample Game Mode and inheriting point. And we can see that we have our city sample player character. So it'll change the star BP FPS character. And that is basically acoustic important that you respond when you click play. Next thing that we need to. Or in another way that you could change this series if you go to rural settings in the game, or you could set whatever game mode you want with default classes for some things. Now we're just going to use their system because that is that this is easier to implement when we're using their sample project. It's up and are FPS character. And here we have arms that are right now a bit too small, but let's leave that for now. And let's click on Add and type camera. So now we can just click out and add any component that you want to this blueprint and you're going to do is add the default camera. Now you can see this camera is set as a trail of the capsule components. So wherever the capsule goes, the camera Google, and let's put it a bit up in maybe a bit forward. So we can set it in the eye level. And then let's take our arms and let's rotate them. Now let's put them approximately there and let's put the size a bit bigger. Now, to manipulate anything in this, in this hierarchy works the same as if you do it in levels. We could select it and move it around. If you have these details panels, Details panel basically the same, whichever transforms. Now that we have this ARM selected, we can see here that you can set the animation class, but for right now we don't have any emission classes. We have animation assets, so let's select our idle animation. You can see it's still too small solids size. Let's put it somewhere approximately here. Let's say maybe something like this. And let's click Compile and let's see how that looks in our game. So first we can just put it in the scene. And we can see that we still cannot see our arms. So let's open our blueprint. And let's increase the size of this window. Click here. And let's try to kind of set it up. Maybe we can also move this back a little bit. This would be way too. Sigh would maybe increase the size a bit more. And you also need to be careful about the pivot point or arms, maybe something like this. For now. We will see how it looks with the Garmin stuff. Much something like this will be fine. Now before we start spawning the character in the level, we need to do few things. So let's go to FPS game click, right-click, and then click New Folder and type Blueprints. We will have to create just an empty Custom Game Mode. Since this does not seem to work if you change your character here. So let's click right-click, click on Blueprints and then type game mode. And let's click on Game Mode base. Now let's name this FPS game mode. And we don't need to do anything with the class for just making it so we can change it in here. So we get these options enabled for the default pallets. Click on the BPF VS character. This way, if we click Play, we can see our character is in control. Me can see our hands are animated and put in a level right now if we tried to move, nothing will happen. And that is because our character does not have any controls. But that is something that we're going to add in the future videos. 13. Adding Movement: Now that we have character created, let's add some movement. So basically the player clicks something on the keyboard one basically something to happen in the game. So we're going to use Access Mappings store, create an event when the, when the player clicks something, something basically a captain. So if you go to Edit, go to Project Settings. Here, let's scroll down to input. And in here we can see that we have bunch of mappings that are already in city sample. So we won't have to do everything from scratch. But if you wanted to create a mapping from scratch, we'll just click this plus button. Set your name. For now we're going to move forward, but we already have this one, so we're going to use this. Then what you have here is basically a list of all of the possible keys that you could add. So we can say, let's say keyboard. If you click the left button on the keyboard, something will happen. So you can pick it in here or you can also click this, select the K value, which lets you click anything on the keyboard and it will automatically be selected. So you don't have to actually search it in here. After that, you have this scale value. In this scale basically means that when you click D, this specific access mapping will have this value, whatever the value is. So if I add another button so I can do the same. For the same axis mapping, I can have another key press. So let's say a integers for example, we want to use this, but I could set a and then set it to minus one. So when I click Okay, this new access mappings 0, we'll have a minus one scale. And then if you click D, it will be one scale. And if we click them both at the same time to have zeros, so it's kind of add up. And the reason why this is good is that we can have like one event that triggers forward and backward instead of having two separate. So we could use this action mappings. So if I click plus and let's say, let me select something. Let's see. And we could use this action mapping, but you can see there is no scale. So even if I add more buttons, that from Bhutan can do just one specific thing and we have no, no control over it. It's just a basic button. So this is good for Trump, going to your inventory, stuff like that. But this axis is good for movement, turning, stuff like that. And you can kind of see it in here by their setup, what they used it for. So you can even have in here, let's say a third button. And we can set it to be, let's say seven scale of 0.5. So maybe for some reason you have, again where you click Shift, hold Shift, you started walking, let's say the boxplot is 0.5. All of that setup in just one axis mapping. But for now we're going to delete this one because we already have one setup. And you can see in here that they have WNS forward and backward and values minus one and the other is one. And when we set up that, let's go to our character. In here we have our character and let's click, Right-click and type and move forward. And in here we can see that we have like an event that is similar to the other events and it hasn't seeped lightest value. That is basically what number? We will get basically a number, one minus one or 0 if you put glue both of them or neither of them. And then we have an event that you want to trigger. So let's click right here and type movement input. Let's click this. So I'll moment input is a special function that we have for our character movement. And what this function allows us to do is set our verbal direction. So when we click this move forward butter, in which direction you want to go. Now we want this to be dynamic. You want whatever direction the character is looking at, we want to go there. If I set this to, let's say one. And of course the scale value is just how much will it scale? If you scale it by five, it will be five times faster or stronger movement. So if you hear a top-down game and our game, we are looking on their character, a decent camera. This is static and this is y direction. And then we have this x-direction. We can just put this hard rule that when we click this, it just swap it up and down all the time. So it doesn't matter where the character is looking. If you click this will directly go up and down, but we don't want that. So let's click, right-click and let's type for a word. Let's get active form. And that means basically we are just going to get wherever our character is pointing at. And we can see this art of justice representation that this should be afforded vector. So wherever we are looking at, if you turn the camera this way, we're going to go there. If you turn it this way, we can go here. So it all depends where we are currently looking at. So we want to get that. Now if we compile and save, Let's click Play and let's test it out so we should be able to go forward and backward. I cannot go left or right. I cannot scroll my view or look around. And that's because we don't have other things set up. So now that we have this setup, Let's also do more, right? And if you go back to our project settings, we can see that we have set up the move right the same way. So we have D which is right, setup to one, and then we have a which is left set up to minus one. It does basically the same thing. We can just invert it but use this one event instead of two or more. Events are more. Let's have to copy paste, thermal and input, and we're going to use the same again now you might think, okay, how I'm going to hover. We're going to use this to move left to right. And you just need to get a different vector. We want to get right vector. And the reason for this is that we just want whatever is 90 degrees to the right. So you're gonna get this vector. So every time we click left to right, whatever we are rotated, what we want to go here. So if you rotated 90 degrees to the right sphere, you would go here. And of course we need to connect the axis. Let's test it out. So I can go left, right, forward, and backward. And now that you have this basic moment, Let's add or a lookout and rotation for the character. And we're going to do this in the next video. 14. Controller Input: Okay, Now let's make our character look around. So let's go back to our input and let's go to Access Mappings. Here we can see that we already have set up our look right? And look up x is mappings. And if you don't have them, you can just easily creating by clicking plus and then plus in here to add a new input for the loci to hear more sex and then for the apprehend the mouse Y. So after we have this set up, we're going to go to our blueprints. And here we have our look, right, so let's run it. And we also have, yeah, so we have these two n. First, we need to seek how to keep it out. That controller, Shaw and petroleum fuel view is that you can cap. So if you have three rotations, I figured you can cancel x, y, and z axis and you won't be using is the role. We never mattered. Camera total disarray. What you want from camera to rotate this space so forward and backward. And we also want the camera to rotate this way, which is left to right. And from the electrolyte here we're going to use draw rotation and then for the app, and now we're going to use pitch rotation. And if you go to our character, now let's scroll down. If you can find it. In here, we can see that our pond saw controller actually can see these controls for the rotation. You can see if you want are all parts of your stem. And we'd want for the pitch tool or a controller to use them. Let's Control, Save. And now let's go in here and let's actually add them into our duplex. So let's type art controller. And you can see these three and we want to add the inputs. And you can see this is even more simple than the movement. That is because we only have this one value that will offset the camera's rotation. Stack cards. Here, V1, pitch, and roll. If you connect it, That's the Compile Save. Now let's try to move it. Now. I am moving the character, but it is moving in the inverted axis. So when I move up, it goes down and when I go down, it goes up. And also left to right is working. Okay, So it's just that one. But now that we're moving, Let's fix these problems. So to fix this, it is pretty simple. You can go to your input and then just invert. So we have our most why? You want it to be minus one. And since they set it to minus other set Test1, now we should be able to move it correctly. And now everything is working fine. And also you can see that wherever I rotate, if I click right, I will always go right, depending on the character. So everything is relative to the characters. If I click, S will always be relative to the character of sorts. So if I go to my, my input and let's say for some reason you want to pick on y and this one on x. If I set it to like this, and let's click Play. Now when I click w, I will always go towards this direction. I'm clicking w, our extra, that whole W. I will always go there if I could cast it out, we always quote the opposite direction AND just moves me in here. So this is kind of an absolute view of where allowed to move depending on the world. But this can be useful if you're getting like a top-down game. And your camera will always stay like this one to go or the backward, left or right. But since you're not making that game, we want this to be relative to our character and we get this to determine where our directions. So now we have the basic character movements. We can move around and look around. 15. Animation Bluerpint: So now let's try to add animations to our character that there are more than just what we have right now. So right now, we just have this one idle animation that is looping. We can see it's not doing much and you want to basically change when we are moving to change to another animation. So let's first see how animations work. So if we open our character, very open our character blueprint. We can see that we have our mesh. And this is basically very set out. Setup our first animation that is just looping the AK-47 idle. So let's open our arms and just see how the animation generally works in Unreal. So we have this skeletal mesh, which is basically an actor that has bones. And this is the list of bonds that are in the hierarchy, meaning that this bone will move out of the bones that are in here. So if I try to move this, because I already moves because this is kind of one of the main bonds. But if you go through the train of D, our character, we can see here that only our arm is moving. So this is kind of how we're going to animate our character is animating the bonus and bones will deform the mesh. But of course you'll create the summation somewhere else. You could technically create it in unreal, but it will be very easier to just create it in another software and then importantly handrail. And so in order to have our arms and all what we need to do, Let's go to main arms. And in here, Let's click, right-click on the AK-47 arms. Click Create, and then here, Create Animation Blueprint. This is one way to do it. You can also click, right-click and then go to animation and find animation blueprint in here. The good thing is doing it this way is that it will automatically identify which a skeleton you're using. So I've now been using using the skeleton. And if you are creating from this hour from here, we will have to manually site. But if you just click in here, create, it'll automatically create everything that you need for your character. Let's name it ABP for animation blueprint. And let's name it a seven arms. And now let's open up our animation blueprint. And in here, we can see two things. First is our event graph and then animation graph. And you'll notice that we do not have the Yuval viewport tab. That is because this Animation Blueprint versus a bit different than normal blueprints. And the first thing is that you have this preview window in here that you can use. And then you have this event graph where we are going to basically get some information about our character from our pond. Is our character moving, changing the velocity? Is it crowd shrink, stuff like that? And then you can use that information to modify or choose which one makes sense to play, which will happen in here. Right now for this arm, I have three now transformations and we're currently using idle. Now what I can do is just pull our admission in here and we can see we have it here. And I can just set it to our output port. So let's compile. And now we can see how the mission change in here. It's a bit more dynamic where our arms are moving left to right. Let's save. And if you go back to our character blueprint, Let's go to Viewport. You can see here that it is still the old animation. But what we can do is click on the animation mode and then use Animation Blueprint. And in here we can find our AK 47 arms. And you can see it automatically applies hour. Make sure that we added. That is because this output pauses the final pose the toddler will make and we can do whatever you want in this part. We can do as much complex animation, choosing and playing and morphing and whatever we want. And then at the end we just have to have one pose, one final pose that character needs to be dataframe. And then of course, you could use the value at this seat frame. So the animation can change over time. And in here you can also just pick any other animation. Now of course, we won't make it simplistic. But for now we can just kind of play around and see what happens. And of course, if we tried to play it, Let's minimize this. Because see how the machine is playing. First looping. But after a while, some logic, it will change when you start moving or when we stop moving. 16. Jumping: Now that we have made our basic movement events, let's try to other trumping in the game. So firstly, we need to do is of course go to our project settings and then click on him. Input. Here. This time we're going to use extra mappings. And the reason why we're going to use them because they trigger just once and there is no scale. It's simple enough for what amount to do. Also big difference between Access Mappings and actually mappings is that actually access mappings or trigger on every tick. And then they put this scale to whatever is being triggered. So even if it's 0, it will be always triggering because for some things you want to do something when it's even 0. So it's kind of sliding scale that is always active. But for the actual mappings, it is triggered only when you actually press a button. And it works the same way where you can select it yourself, created in here, or through the list. Keep on you want to use. Now you can also combine them. So if you want to click Shift Spacebar, you can do that. But for us we just want a simple space, but you already have created in this Trump action. Let's go back to our blueprints and let's click right-click. And from here we have bunch of stuff, but what we need is this Trump action event. Then we also have a useful jump function from our character that we get automatically because we are using our character class in Helios key, which is just a variable of the key that is actually pressed, which would be scalable. But we don't want to use that for now. Now if you go back to our level and click Play and try to move around and click space. We can see how our character in arsenal jumping. Now before we continue, maybe editing our character's movement to let's close this up and then open our character blueprint. Let's organize this a bit so it's a bit of a mess right now. Now, first we can delete these events because we can, at any point they begin play or something and respondents, so we can see here that we always have them available and they will get grayed out because they're not used. But you can delete them for now. And let's select our move forward and move right event, events. And let's select them and they pick C on the keyboard. And let's type movement. This way we kind of get more organized with our stuff. Let's say controller. Here. This is our rotation of the camera. And then you can select Disk C and then type jumping. And now we have more organized view of our blueprints. Let's compile, save. And now let's say that you want to edit some settings. Maybe you want your character to jump higher, to move faster, to stop foster accelerated faster, slower, or something like that. You can always go to this character moon component. And then here you have all the details that you can kind of change for your character. First thing that you could reach in here is maybe change your gravity scale. So this will affect how your character falls and how high he jumps. So there is a force applied to a character when you click Trump. And depending on your gravity, to depend on how fast you come down or how fast is the pool of the gravity. Next thing that we have is our maximum acceleration and is basically changes how fast you accelerate your max speed. If you go a bit down, we have this small max walk speed, which is right now 600 centimeters a second. And this maximization basically determines how fast you can achieve that speed. So if I put this to 200, let's say, and tried to walk, we can see how slowly accelerating toward thermal speed. But for now let's leave it at 248. Now you have this king friction factor, which is basically how fast your character comes to a stop when you are when you're walking or running. Your crotch high to just what's your height when you are crouching, you have your mask, which will also depend for your momentum. So the smaller the mass, the smaller or the bigger the mass and then the smile friction, it will depend on each other how fast you stop, depending on your mass and easily lost affect the gravity and stuff like that. So this urogenital Moscow, the character. And then you have default, land and water movement more Today's modes that you can train. A character when they're walking, swimming, or running, stuff like that. So you can see here what settings are for each type of motion. So here we are, here we are swimming. So these settings will be applied when applied when the character is in the swimming mode. But for now we want to change that. We also have some advanced stuff which are a bit complicated so we don't have to go over that. Now, these ones are one of the most important. So you have your max step height. This is small. The object needs to be to basically for you to step on it. And then walkable floor angle is basically, if we, let's say we add an object in here, Let's maybe we can do a corner. So if you tried to walk on this call, we won't be able to, but because the angle of the normal so that objects are too high, but we should be able to, if you increase this to, let's say 85 maybe I'm not sure. Let's try it out. So now you can see we can actually walk on this cone even if it's very steep. So this steepness angle on which you will be able to walk on. Let's reset it. I think 44 is fine. I'm not sure why they made these specific as a default value, but that's fine. And then max step height is just how small the object needs to be or how big object needs to be for you to be able to step on it. So when you have things like stairs, you don't want your character to help to Trump for each little flight of stairs and the characters Motley to smoothly or ramp or walk on your stairs. So that is the that is the max step height. Then we have our ground friction is basically the default friction on the ground. So she's disabled this. This will also affect how much your character slides on the ground. Right now I'm trying to go left to right on the tree. If you can see on the stream or on the video how I'm kind of face smooth around morphism. If I click AND goes left and right. That is because right now the floor is all lot is pretty slippery for my character. And usually it's way more. There is more friction. Then we have our max walk speed. This is how faster character is going. So if I put this two, I see 3 thousand and title plate. We can see how a character will ramp up until he's going to use maximum speed. And now he's going way faster before, about five times faster. If I click space, we can see her job is better, even better visible. This of course, will all affect each other. So when you have the you have higher speed and low ground friction. Hughes slide even more. And if you have an acceleration to maybe lower or higher, that depends how fast you can go to your max speed. So you notice how I needed to ramp up to my max speed. But if I put the store, I'd say 10 thousand. I come to my maximum speed almost instantly. Oh yeah, I set it to 600. But if I said to Tony larger number, it will just come to that number I'm assisted unless it's really high number like 20 thousand or something. And you have also max walk speed when crouched. We still don't have crowd. So I could for this. But it's basically venue crowd. You're more speedy, just hopped or whatever number you put in here. What kitties are not that important right now. And another thing that's important for a Trump, you want to customize it. You have your trunk strength and then some air control stuff. So if I put this starts at 0.5, I should have a lot of control when I'm falling or jumping is if I click Play to Trump and then moving the IR, you can see how I'm moving left to right, controlling where I'm going to fall instead of falling right in front of me. So let's actually bring that back. We don't want that much control. Maybe we can do it for this just to have a more pronounced Trump. But yet those are the basic controls that we're gonna be working with for this character. 17. Animation State Machines: And now let's try to add some animation logic into our character animation blueprint so we can actually make our character essentially missions while we're moving. So first let's open up our ABP animation blueprint for now and just start playing one simple animation. And this is too simplistic for us. So let's go to the Event Graph. And in here we're going to use our use some nodes to basically retrieve some information about our character. Now in this animation blueprint, you also have variables and we can store some stuff in here. So let's click plus, and let's create something called is moving. So this is just going to be a custom variable that is, that can be only be true or false. And we're going to store in here if our character is moving or not. Now we have these two nodes in here and they're grayed out because their accuser Tau. First one is basically like your tick event. If you ever saw tick event in the normal open. This is similar thing where this will activate every, every tick, every frame, and then the machine will be re-evaluated or this information will be evaluated. So what we want to do is in here is try to get our panel on or this node is useful. So drug track who is owning this animation blueprint and it will take that point of reference. So you don't have to specifically know which part is controlling this actor or you can just get whoever it is and then get some information from it. So let's try to get velocity. Since the velocity is one of the variables that are pound stores. After that, we just need to know how fast he's going or if it's greater than 0. So if the character is moving in the right direction, just the n is more than 0. Let's type vector or length. So if the vector and vector meaning the direction, so if our character is moving to the left, right, back forward, we don't actually care about the direction you just want to know is our character wooing? Is he changed the location from frame to frame. And if that is true, if it had greater, if that is true, it is greater than 0. We want to set, is moving to true. We want to do it every frame. So what happens in here is we get the velocity, we get the length. If he's moving in any direction. Even a little bit, we're going to set this to true, otherwise, it will be false. So this is kind of the basic logic. Of course, you can do this in many other ways. Then when we go back to our animation graph, we need to find a way to basically use this information. First thing, first that we need to do is create a state machine. State machines are basically used to trigger different animations depending on some variable or now we're changing states depending on some variables. So this state could be addressed. Let's rename it actually. Let's go back in here. What's the name? It's a lot more fun. So this state could just be rather than moving to the character and then you can combine this with something else. Maybe you have like a separatory measurement, character gets hit or something. So you have different state to state machines in which you have different animations that are claimed based on some rules. For right now we're going to delete this and then go into locomotion. Here we can pull from the entry. And what we want to do is other state, and we can name this state. Let's call it a title. So when we go into this locomotion, so each each frame, we're going to go into this locomotion and then try to extract some information and insights. Locomotion, we're going to go to entry and first thing that you're going to hit is idle. When we are in the idle, we want to track if you want to go somewhere else. So if everything is fine in here, in this happens the first time and then there is some loop that happens. We're going to create. So now that we have this state, Let's go inside and you can see we have our output animation and we were unjust are idle. So when we are in this state, we want to just loop or idle animation. In here you can also see the hierarchy. So we are right now in the idle state, but you can go back to our motion automation graph and we can close these ones. So now that we didn't either, we can see that it goes into the entry and then it's sloping in the idle. Another thing that we can do in here is if you don't plan to, every time I create a state, and then other emission can just pull the animation and it will automatically create it in here and we can do name it walking. Now we want to go from this state to this state in some way. Let's compile. And one way to do this would be to to create conditions on which will change from ILO to walking. So if I pull from idle and connected to walking, now we have a condition at which we are going to try to go to walking any trail we are going to evaluate the condition. Let's double-click on this condition. We need to know when we can go to the other other state. So let's pull moving from here. And you can also type here is moving and get it in here, but I like to just pull it and then you can click. You can also hold control and pool or hold Alt and pool if you want to set or get out your variables. What kind of tea that you can use we can connect is moving to our result. Let's compile, save some ionic character this morning if we want to go to our other state. But now that we're at this state, we want to know when we can go back. And for this we want to click on here and then pull it to the idle or put the here. And now we have another condition that you need to track. We need to set again. Now we don't want recording just is moving in here because we want to go back when the character is not moving. So you can just pull from here and type naught. Or actually we need NOT Boolean in here. So when the character is not moving, we transition. And this is the simplest logic that you can do for these states is we are in the idle waiting for, when we are moving, we go to walking back. And this is output here. So now let's click Play. Let's test this out. Suddenly start moving. We can see our character is playing the right animation and then you stop. It stops. And you can see there is also a bit of delay before the character stop and then before the animation stuff. It's kind of small so we don't want confirmation changes. We don't want just to snap to the other animation. This is, this is called animation blending. So if I go back, she fits in here we have player rate. But then for the transition as you have this blend settings. And that basically means how long do you undertake between the transition from one generation to another? This is of course useful to not snap from one animation to another. And we can test this if we set this to 0. And you can see how the snapping happens. And that's kind of an older way that you do it where you just change from one state to another. But now we have some blending options that are enabled by default, so you don't even have to do this. But for some animations, depending on how drastic the changes, maybe one to two ratio to be 0.5 or something. But for now, I'm going to leave it at 0.2. 18. Chapter 03 Introduction: This section is all about weapons. We are going to create a weapon that is animated when we run and when we stand. We are also going to add some effects like effects when the gun foods and also particle effects when we hit something. We also will add zoom in so we can zoom in with terror weapon and also fruit. And you can also see that there's some really cool on the gun when we are in the aim or they're not a mode. And if you got out of the game and go to blueprints, we're also going to add some line traces, which will let us know what we hit without a gun and let the spawn particles. We're also going to add some sound in a game. So when Oregon foods, what happens? What can we here? We have a muzzle flashes and we're also going to go over how we can set up the weapon. How can we attach the weapon to the hand and rotate it appropriately? Saw a gun is positioned right in the left hand and right hand. This section we're gonna, is gonna be pretty interesting, is going to be all about the gun and how we can set up. They began to work in our FPS game. 19. Attaching Weapons: So now that our character has proper animations and we have an emission separate for Ireland walking. Let's actually add a weapon to our hand. So first thing that we're going to do is go to our character blueprint. And in here go to Viewport. First minute to add our veterans Skeletal Mesh. Let's click Add and type Skeletal Mesh. I click in here and let's name it. Now if you go to skeletal mesh, we can find our AK-47 weapon. Now we cannot digital weapon is small and that is because scale is set to one. And if you remember, we scale our hands by five. So we can scale it in here too. And we're going to use this later for us. So visual, visual presentation where the ripeness sitting in the arms, in the editor. But for now we're going to leave it here. So now that we have the vapor, Let's go to our mesh and let's open it up. And in here, what we need to find is our right hand. This hand is actually holding the weapon. And we want to base our weapon orientation based on disarm. So let's find our right clavicle where we can find upper arm, forearm, and this is the hand that we want. So let's take right-click and then add socket. And let's quickly rename the socket or web socket. Now we're not sure where this socket is standing. So let's first set our previous controllers. So this is good because we can use Preview animation to see how our wrapper is positioned in here. Let's click, right-click in here and then preview mesh. So you can add basically the mesh that you'll just be here for previewing how it's looking. Replayed again, it won't be here. So when we add the premium, premium mesh now, we can rotate it around and try to position it as best as we can. And this summation that is playing, this helping us use the reference instead of looking like this, setting it up in here, it will be a bit harder. So just using Preview animation makes it way easier. So now you can see it does not sit well in the hands, so it's more like this, something like that. So this will take a bit of tinkering, but I'll try to make it sit well in the cans. Maybe something like that. When you're satisfied how the vape pen looks, we can leave this in other terms, sockets. So the whole time you're changing the actual day from the location of the socket. But now we're going here. We can go to our event graph. And then let's click, Right-click and type in play. So when the game starts and you can move this up since this first-year to activate. So when the game starts, we want to attach our weapon to our mesh on that specific socket. So one way to do this would be to pull your mesh and then type attach Component, two components, they're both components, vapor and the mesh. So let's play this. And you could also just click, right-click and then type attach component to component, but then you have to choose which components on what you want to attach. If you click in here, attach Component or competitive weapon mesh, we get the same thing, but it might be harder to see or find if you do it that way if you have a lot of components because each one can have this option. Now I want to connect this to begin play. But we are missing the parent to pull the reference for our mesh and then set it to our parent, the socket we renamed to web socket. And now this should be fine, except we have these rules for location rotation scale. So we know that scale should be the same as the character which is five. So we can just do snap to target. Their target scale is, or this measure scale is, we'll just snapped to that. That's actually this a bit so it's cleaner. Then we have a rotation. We also want to snap and location also to snap. We can just snap everything. And if you leave this to keep relatively keep world, what will happen is that wherever that happened was standing, it will still attached to this component to the mesh, but it will be in this position. So favela arm moves up, it'll just move it from here up. But we want to snap it where the armies and then start falling down. So this is kinda how you get that. And we also have dealt simulated bodies to three, the arm and developers. One thing, you never want to treat them as separate in physics terms, sensitive, they are attached. So when we have this, if you go in play, we should see the weapon in. So you can see everything works and when you move change, the weapon is following the actual art. Now let's say that you want to preview in the view port what is happening with your rapid and very stunning. Since we can see here that the arms here, the animations, but weapons or not the Dutch. For this, we can use the construction script, which is something that compiles in the editor. So everything in here activates after you click play. This starts activating. But construction scripts actually activates when you compile, when you move the object in the scene or something like that. And you also have some options for that. When you want to run your construction scripts. So you have on drugs whenever I drag it in the scene, which will also run when you compile and stuff like that. So this is useful to use in the editor. So what we can do is just copy this and paste it in here. Connected. And I can see it's still not working because we're not compile, we cannot compile it. So if you click Compile, now our weapon is actually attached to the arm and he's doing the exact same thing that we would see in a level so we can actually preview what is happening in here, instead of having to play to see the weapon attached. 20. Aiming: So now let's try and add some aiming entire game. So first thing that I did is just added a few new animations for our aim. This is something that we're going to use later, but you can easily import it as we did before. Where you just take your animations for your content browser, put it in Unreal, and it's automatically ask some settings for the import. And then you can just uncheck import math and then just select the appropriate scatter. So after you do that, we're going to go over to our character. The first thing first is for our aiming, we can actually use that variable that is inside the n MBP instead of storing it inside of a character. So that might be more appropriate. So let's go to our Anime Class click Search, and then open it up. Now we need to go to Event Graph. And in here, let's scroll down and let's click plus and the ad is aiming. Now let's leave it as Boolean. After that, let's go to our project settings. And in here we need to add our inputs. So it needs to be Amy input or it needs to be input framings to our input. Let's first see if there is already something for aiming. We do have leftmost button, but we do not have a right one. So let's click plus. And let's type aim. In here. We can click here to automatically select value and click right-click. And now we have Right-click for AIM. Let's go back, back to our character. Here. Let's click, click, click and type aim. Have this simple event. Now that we have this, let's see what we can do. So first let's type get an instance so that we can do is get animation instance of our math. So you would get the same thing if you pull the mesh and then type get anime instance. What we're doing is basically just getting whatever these classes for our animation of the character. But you're kind of getting the parent of this, which is RM instance. And that parent does not have these values that we added into the child. So what we need to do is typecast too. And it's called AK-47 arms. And now we are saying that we have a general parent, but we want to split this specific trials class so we can access salivates variables. So if we go here and type is aiming, we can see how we can get r is aiming variables. But if you try pulling from here, it does not have the variable because this is not, the variables are not implemented in this class. So now if you connect this and click through betrayed that boolean to true. But this operation of casting is kind of expensive, so you don't really want to do executed in this input action because player might be spamming about or something like that. And it's a button that often, so you don't want this expensive operation to be performed so many times we're going to do is just disable all of this. Let's select these two and let's put it in here. So what we want to do is execute this just once in the beginning play. And then we can save the reference so we don't have to cast every time to get a reference. So now what we want to do is create a new variable of type ABP AK-47 arms. And we could click Plus and then search for our variable ABP and find it in here. But we have another option to kind of do this a bit more easily. The weight to that is to click right-click in here and click promote the variable. It will automatically create a variable and give you the set. So we did what we wanted to in here. We create a variable, set it, and now we can just reference this variable. And we can connect in here. And now we can basically just reference that variable to get the information that we want, which is aiming. If you click Compile, Save. Now let's go back to Van graph and let's now put that variable hits. We can test it if this is working or not. So we're going to get the saving and then I'm going to right-click and type print. Let's connect it in here and is aiming string. Let's compile, save, and let's play. It says false, but when I click to right-click, it says true, meaning that we do execute that one, but after I released the button, it did not go to false against you only want this to be true while we are holding the right button. So let's duplicate this set and then we can do on released. And you also need the reference and disabled the Islamic. And this is a body to this surrealist trigger when we release button and press, depress it. So this should work. Now. It's saying false, I'm going to hold right-click and then release it. And you can see how we get appropriate response from the game. 21. Aiming Animation: So now let's add aiming to our game. Here. I already have it set up, so I'm going to go over how you can set it up yourself and make the work. So the first thing is that we are going to set this aiming in the Character Blueprint instead of in here like we did with moving. For moving, we found a pawn, font his velocity. And then based on if it's 0 or not, we basically set our Boolean to true or false. But what we want to do is aiming in here. And then if you go to our character blueprint, we can see that I added this input on him in production items. So if I go to my project settings and then go to Input, we can see how I added this aim, actually mapping and such the right mouse button and you can easily set it to if you click in here and click right-click, it automatically sets it to the right mouse button or you can just search it in here. So after we set that up, what you can do is called this aim. So you can just click right click and call the actual event aim. And then you can use your animation instance to basically set is aiming to 0 false. So we're basically setting this value from our animation instance. Now how did I get the reference to this animation instance? The way to do that is basically to get your mesh. So we have our mesh. This metric has this animation is insert in here. What you need to do is pull from it. And then get type. We get animation instance. And you can get this. And now that you have a general animation instance, we also need our ABP AK-47 arms animation instance, which has r, is aiming. If you try to pull from here and type is aiming, we won't have anything because that's just a parent that does not have the new values that we added. But this one, if we type, is aiming, we can see that we can get the value. After we do that, we can click in here, right-click and then promote the variables. So we're automatically going to create a variable of the animation instance. And it will automatically save it so we can just set it in here. And this all happens in the beginning play. And after that happens, we go into the aim and we set out to values. We set our value is aiming to true or false, depending if we click right-click or we're holding right-click or not. And that means that we don't have it set setup in here. And we can just set it up in here and work from there. So after we have that setup, if you remember, if you've got to look more often, it looks a bit different than it took before. So before it probably looks something like this. And what we can do is when we're inside, our CFI goes all the way back. So you kind of have a Let's exit out too many times. You can just say it's out of them. If we got our animation graph, we have our locomotion state machine, but our state machine can only have states. So if you click right-click, we can get out of the options that are available and we have only four options. To add a comment conduit state aureus or estate. We added our states before, but inside the state with their CloudFormation. Now what we are doing, this kind of a high-level concept of this is we are adding state that has another state machine in side that has more states. So these kind of gets more complicated if we have our specific animations that go from one to the other. If you go one way back, we have our state machine just for our aiming, and then we have a state machine or not taming. So the idea is to have those two separate. So when we add some animations, we can write them separately because in our character is looking down side and looking down site and walking. He will have different animations. And then if he's running with his weapon, next O'Keeffe's trust or something. So in here you can just add new state and namely taming. And you can, before you do that actually you can X out of this. You can select our walking an idol and I click Control X to just delete and save them into memory so you can later paste them and create here. Just add state, namely taming, go inside and it will be empty for you. Click, Right-click and type state machine, and click on new state machine and you will have this I renamed it or aiming state you should do. Go inside. You need to paste it in here. So you click Control X on these two before and they are called Ireland walking. And now paste them in here. And after pays and connected the entry to kind of look like this. And you should not change this or this. Only change whatever is inside. So change the name to a model and then walking and go inside. And you can see I changed my animation from idle to a model. And I did the same thing for my walking. We can see here I have a invoking. After that. Let's go all the way back. One more back. After that, create another state and name it not taming. And create another state machine and name it not aiming set machine. This just make it more readable. And inside you can paste your your copied stuff for I love working here and just connect you to enter. And that's about it in here. Because we want it to stay the same when we're not walking, not aiming. But if you are aiming, we want it to be to have different animations. And now that you have these two states, you can put in between, just connect them like this. You can connect them and then double-click on that. And set is not taming on the arrow that leads from aiming to not taming. We need to set it to be true when it's not taming. So when we are not aiming, we're going to have these animations. And then you can put the arrow from not aiming to aiming. And that means that when we are in the know taming section, We are aiming or we click the buttons to start taming. It will go to this animation and it will play this. So that is the whole idea. So just set the store. The arrow that goes to the left, set it to is aiming and then to the right to not aiming. If you set it up, you should be ready to test this and see if this is working. Now that we have modeled working, Let's go back. Let's go to a invoking. Here. We need to change this to a invoking. Let's remove it. Now let's put this in. Let's compile and save. After that, we have these Booleans that are set that to change our animation depending on what we're doing in here. So if we are aiming while idle or aiming while walking, it to be in this state machine. But if you're not, if you're just not telling it to go in here. And for this, we need to connect it like this. Let's then double-click in here. And then we have is aiming. And let's go back. It's actually not taming. We should go in here. So let's type NOT, NOT Boolean. So if it's not taming, we need to go to North aiming animation. We can kind of put this in both places. We can that from entry to go to no timing can then go taming. But since we have this transition, if you go into aiming and this tradition is true, it will automatically go to an atomic. So you don't have to worry about these activating first. Now let's get these aiming. Now let's compile and save. And now this should work. Let's go into our game. Now it seems like when we are walking, it seems like our hands are missing, so we're going to have to fix that. Now we can see the Tower animation is not perfectly positioned. So we need to fix that. Let's go out. And to fix that, we need to go to our character. Let's go to the viewport. And now let's check out our hands. So this is our current location. We can actually do something like this to kind of view how are, how are positioned looks from the camera. And one thing that we can also do is in our animation mode, we can change it to use the IMF, an asset, and now we can use aim walking. And now we can see the change is change that happens. So the biggest change that happens is that our hands are shifted a bit to the side. Let's move it in here. Something like this should be fine. You can use also aim idle. This is more stable so we can actually see it looks. And let's also look from the top view. We can see if you are looking through the barrel of the gun. Now the biggest problem is that we have these 22 views, but they don't go well with each other. And we need to change this in real time. So let's actually, this would be something like that. Then maybe we can put it a bit forward. Maybe something like this. Let's say that is good. So what I'm going to do, another peak here, it's set up. Let's go to graph and we have this a mode. And we want to set it up that when we are aiming that we switch to this mode. And if you're not aiming this feature to Dell model the position and rotation and actual rotation for now we don't even need to change, but let's just change the position. So let's copy this. And let's create a new variable, its name it, aiming, the trim. And let's actually, before we do anything with it, Let's recompile and now a Socratic here and click Paste so I copy the location. And for now let's just get this. When we are aiming, we want to set the location of our mesh. And we want to set it out evocation. So this way, every time we click, right-click, it should set this position. Now this will be snapping, so that's something that we don't want. But for now we are going to leave it like that. But you might want to use something like a timeline, which smoothly transitions from one value to another. So you could use this to go from aiming position to not aiming position. And we can also create that. So let's type not aiming. And now we need to just set the animation back to trust. Idle. Let's reposition this a bit. Something like that. Let's do maybe like this. Now it's copied or occasion and go back to our graph. And let's paste location to know taming. And now we can take taming, insert it, and we actually need to rename it a bit. So let's keep it consistent. Now let's connect to this also. Before we play, Let's change our positions. I forgot to change this to our Animation Blueprint. Let's compile, save, and let's try it again. Now you can see how we go to the aim and you can see we can change things a little bit. So right now, our location of our other cursor is not exact. So all of the cluster the downsides. So we need to change that. But let's first change the snapping. So you probably notice how it snaps when I click, right-click. And that is because we don't have our timeline. Let's create a timeline. And let's name it. Something like this. Change, change in position. Let's first disconnect this. We can connect everything appropriately and you want to play it or reverse it depending on what is happening. And let's open this. Now let's add a track and we will need to me the vector truck. Actually we just need that floats track, just going to use it for a time. I think let me see. That should be fine. Let's length says length of 0. I think it's 0.2. Butler's. Yeah, Let's do 0.2 for now. And let's click, right-click other points. So basically timeline does is it lets you create a curve from some time to some other time. And then let's do, gives you a variable that feel that you can use when it's updated. This one, Let's make it to one, and let's make this 0.2. And this one needs to be 00. Now let's go back to engraft and now we have this new, new track. And then let's add a letter. I think this should be fine. But let's start. Let's add vector. And we can use this as an Alpha. And now let's put this to update. Or actually we'll need to put this one to update. And one thing that we're going to change here is instead of setting, not taming and aiming to be separately, we're just going to use them to change our lab or we'll be changed by this timeline and then we have this position and not in a position to give us the location that you want to change from and to. And this should be fine. Now we've given it that's true if I connected this correctly. So let's see. So I am not changing properties. So let's open it up. We shouldn't connect it like this. Now it should work. Let's see. Now we can see it works and it also does not have the problem with snapping when we click right-click. Now there are some smiles, things that you can do like adjust the gun or adjust the sites. The one thing that I'm going to do is I trust the downside sense. It seems like we are, we have it a bit too much. So let's get our mesh. Let's change animation asset, Let's do idle. We also need our position which we can get from our events. And naming position. Let's copy that. Let's, let's paste it in here. Here we're aiming position or this window is a bit small. Let's click again in here. Hopefully you can see it. Maybe we can also look through these views to see kinda generally curve is standard it. This is harder to see. Let me play again so I can better see what the problem is while aiming. Ok. So now my positions are not the top because if you remember, we changed our mesh to use animation acid instead of Animation Blueprint. So I think what we need to do here is take argon and move it slightly up and slightly to the side. Something like that. Maybe. Let's compile, save and let's look at again. Now it's a bit better now we also resets to our previous position, which is not good. But we can see the right position when we click Play and now click anything. I think this is fine for now. Let's leave it like that. I'm going to open, of course you can adjust this as much as you want, but I'm going to leave it like this. So now that we set up the position in here, what you can do is go up copier new location and go to Events. Find my aiming position, and then just click right click in here and then paste. This should update our position, our new position. Also going to turn not taming position to be default. So what I'm going to do is copy it, go to Viewport, click on my arms, and then paste it in here. Have it set up by default like that. Now change to our previous one. And now let's click play this. And then we go into this year. And we have the basic setup for aiming made. 22. Muzzle Flash: Now let's add the ability to fruit tart characters. So the first thing that you're going to do is let's find our FPS game. Let's go to the characters and that's open bp FPS character in here. Let's close this. First thing that we need to do is to add a point in front of the guns. So what we want to do is add a specific point where we can spawn our particle. And it will look like there is a muzzle flash in front of a gun. To do this, let's click on our weapon nationalistic and type scene component. And sin component is a type of component that is kind of just like a location or a transform. So you can use it to mark some location or to spend something on his stuff like that. It cannot be used to from F or something like that. It is specifically just as a point in space as another coordinate system. So let's call it or call it. So in order to have it, you can see this attached organ because we attached it in here. We have a hierarchy. We can see how it's slowly moving up and down based on our animation. Now we want to just pause this animation so you can assumption, pause on him. I'm going to pause it so we get the ability to actually edited without it moving. So now that you have it pass, let's look on this muzzle flash point. Now let's try to move it a bit. I'm going to actually use this. Let me write 15, maybe 20, let's say five. So we can see dislocation is way closer. Let's do seven. I'm gonna move it to maybe one. We're getting closer to the ideal location x sine think we need to move because our midpoint is right in-between the barrels. I think actually it is a bit left. So let's do 0.3 on the x, which is too much, maybe 0.1. This should be fine. Let's do y less than other, another as to maybe 8.5. That's kind of a bit in front of the guns since it would be very disappointing. And I'm going to move it up by just a little bit. So something like this. That should be good location to spine our spine, our material. So in the files you should find in the weapon Muslim, find this article which is called muzzle. And in here we can see what happens when we activate these particles. So it's a muzzle flash and we have some bullets stuff I get. And this is a simple old school particle system. You can also convert, if you want to convert into the what actually you have to go to plugins and enabled I gotta or casket and I gotta convert area. And you could convert it to Nyae, which is a newer version for the particles. But for now we're going to leave it at that. Now that we have this positioning here, we also need to look at the rotation of our point. You can see that our rotational point is in another axis you've already formed. So this means that our particle will be spawned looking this way which we don't want E and then try to rotate. And actually instead of rotating it that way we can we can do snapping. So snappy, two time points that will recruit or else we can just write 19 here, and this will set it up nicely. Next, let's go to our event grafts. So now we need a way to activate it, this spawning. So we need to go to our project settings and we need to set up an input. So let's go to Input. And in here we can create a new action and name it fire. Or we can just use this primary action totality have for activating the fire and it is already set to left mouse button so we can use that. Let's go back. We call tab. In here. Let's move this back. Socratic and type primer primary action. And now we just created, Let's pull from or actual. Let's see if we have this muzzle flash location and we need to span an emitter. So let's type the Catholic and spawn and meter application. Here we have our p muscle. Let's do on pressed. This point emitter is kind of works exactly as we would expect it to. So it spans meter at a specific location and you have located for different scale to set up. Out of the story is fine. Our activities should be fine. So let's get our muzzle flash. And when we get a reference, we can do get world location, location. And then it gets world rotation. This way everything should work fine. Let's see. So we don't need to set scale. Scale should be fine. We have are out to destroy and I'll talk to it. So let's try now. And you can also close out of this. Let's Move Play. Now you can see when we click, left-click, we get our muzzle flash and we can also have some bullets flying out. 23. Single Shot Burst: Now let's hit it our particle to be more appropriate for our weapons. So right now it does the 33 times bursts. So you can see how it fires multiple shells from the county and asked there is multiple bursts, anyone to change this to single fires. So the first thing that you're going to do is just disable one of these effects one by one. So you can see here in the line, in vertical line we have different types of effects. So what is the all of them except the shallow tract? We can see that this one is just the shell is going out, then you have your flare glow and stuff like that. If you decide that all of them except the Federal Direct, we can see that right now that it bursts out through felt so we weren't dressed, want to do to change that food, go to spawn in the breast list. Because see that there is happening. And this is at which point they're actually happening in the timeline. And change this 121 brush. That basically means that you just want to delete everything except the first one. If we do this, we can see all the valence shell is going out. Now that we've finished. Let's go to the refraction. Now, this one might not be visible because it's just a fraction of the light. So it kind of, so many foods, it kind of looks a bit verb, verb to that place. So for that you can just delete it and not see the results. For massive flame. Let's click spawn. Let's check out this bonds so we can see it's basically the same spawning and spawns three times. We're going to delete two of those. And you can also, at any point, you can also enable or disable any of these effects. Maybe for some reason you don't find this air glow. You can just disable it and then leave everything else enabled and then this one will ever activate it and you actually play the game. We have our muscle flames. So let's delete, delete, and you should get just one breast and you can see what you get at one quick burst. This table that will go to air glow. Let's go to spawn, and let's delete these two. And I will just see the flashlight. Of course, all of these, if they are too strong, if you want to change it to color and stuff like that, you can just see which one it is by enabling, disabling the other ones. Then adhere to have all the different options for the scale color, stuff like that. But for right now we just want to make it not burst. Here. I'm going to delete these two. And then we have a smoke. Smoke is fine. It only goes once and then it kind of goes forward. And now let's enable all of the effects to see the final one foot burst. 24. Firing Sound: Now let's add some sound to the game. So if she going to our FPS game, then if you go to a weapon, we have sound and we have single AK-47 sound. And if we hover over it in the Content Browser, because see how it sounds. Now that we have that, let's go to FPS game characters and open our character. Nine here, let's go down. And what you're going to do is basically just pan the sound. There is multiple ways store sounds. So you have 2D application attached. Since we are going to only look from the perspective of knowing again that we can here will be the gun that we're shooting. 2d. Sound will be fine, but if we want to do as location or attached, it will also have attenuation. So the distancing to become quieter and quieter over some distance. But since you don't need that, we are going to respond some 2D. This kind of the simplest form of the sound that you can spot. Now let's connect it here. Cigarette guy again, connecting it to left-click. So whenever we click left-click, we get our particles and then respond to sound. Let's type the name of our sound object. You also have this drop-down menu and this is good to kind of modify or sound really simple ways. So one thing that you want to do is just change this volume, maybe 0.6, depending on how long you want this to be. Now let's compile and save, and let's test it out. Now, you can hear the sound and also if you click through a fastest kind of soft sound automatic. Successfully add some sound into our game. 25. Firing Animations: When food argon is not realist response right now. So let's add some animations for when we food garden, we feel the recoil. So let's first go to our character. And we have our main arms. And in here we need to create a montage. And a montage is basically an animation that will play on top of our existing animation. So let's click right-click. Go to animation and find NMF from montage. We need the right scatter, so we need AK 47 arms carton. Let's name it. Recoil. Now let's open up our animation mown turf. That is few things that we hear in here. So we have our timeline where we're going to put our animation. We also have our asset browser where we are going to pick animations from. And then we also have some options for the animation in general. So one thing that you're going to do is change this blend in time. So blending and blend out time is basically blending when you are adding this animation to alert the existing one in the animation blueprint that we worked on before. So let's use this to 0. So instantly when you click the foot, it will start floating. And now let's pull the second 47 short in here. And now we can see we have this animation for 40. Now we want this to be way further. And to make it for today, we're going to click on our animation. And then in here we have our playwright and let's put that to maybe six or maybe seven. Let's test this out. You can see how the speed of our animation, now we can put it even more, but let's leave it at six for now. Let's click Save. Now let's minimize this and open our animation blueprint. And then here what we're going to do first, Let's go all the way back. Where we have a state machine. You're going to do is basically change the slot or add a node that a slot that we can slot in our animations from animation montage. So basically, we can specify at which point of our animation from the state machine to our output pose vary one to put our animation. So let's go try second type slot. We have slotted default slot, and let's connect this. You can create your own custom slots. But whenever we going to use default and you can see in here, you have different slot types. You can also create new slots. And if you go to Window and anime slot manager, in here, we can create more slots if we want specific for this. And in here we can also change which slot group we're using. So for right now, let's leave it like that. Now to have this the top, Let's go to our character and go to BP FPS character. And now we're going to use a node called a montage play. If you cannot see it in here, you can disable context sensitive. And let's try to search for it. We have it in here. And it is asking for few things. So it is asking for animation instance reference. We're trying to make money. For instance, we want to influence you this. And then it's asking for a monitor that we created, which is going to recoil. So first let's pull out our animation is not that we have reference to. Let's click in here and try to find gunnery coil. And all the rest of this should be fine. So let's test this out. Now when you food, we can see how our gun recoils. 26. Aim Firing Animations: Now while we are aiming, we still have the same animation which we wanted to care when we are in the heap fire. So if I click, right-click and try to aim and fruit, we can see how it swaps from my current animation, which is aiming to our hip fire recoil, and then back to aim. So we don't want to do that because we want to kind of keep it realistic and we want to change the animation montage depending on if you're aiming or not. So let's duplicate our gunnery coil montage. So we're going to create basically to monitor fails and then switch between them in the blueprints. So it'll duplicate. Rename it to aim can recoil. Let's open that up. And let's delete our acre foot. And let's find our aim foot. So it would be this one. Now you can see that this one is also a bit too long. So I want to decrease the size of it. So let's do ten in here. Just so means to see the animation up close. What can that looks nice. Now blend time. We might want to increase this later. It depends on how hard our animation is so you can smooth it in. But for now, let's leave it like this. And now let's go to our characters. So what we need to do is basically choose between one or the other montage play. By the way, for the AIM going on, because obviously that our default slot is the same name, meaning that it will change it in the same way. So it'll basically slotting the right animation if you are aiming, are not aiming. To basically switch between neutron, which one we want to choose. We want this aiming Boolean. If this Boolean we're going to switch between them. So let's click branch. And let's actually connect this to false because we want this to be on the force. So when we are not aiming, we're shooting this. But then let's click on the month of place. Click control C, control V, create a duplicate. And then we want this to be connected through seven we're aiming, we want different animation. Let's change to aim gunnery coil. And this should be it. Let's actually reorder this a bit. When you spawn the sun, we didn't go through the branch which we track if you're aiming are not aiming. Depending on. If we are aiming are not aiming, we get different monitors to play. So now that we have that solved, Let's see how that looks in a game. And it looks pretty nice. We don't need to change anything. If you're recoil is a bit too harsh, you can change your blend in time or blend out time. Or actually I would live blend out the time to say, but maybe increase the binding time to maybe 0.50.2. But for me it looks fine, so I'm going to leave it as is. 27. Blueprint Functions: Now let's try to organize our blueprints a bit. And we're going to do that by using functions. And the function is just a grouping of some nodes that you can later execute. We just calling that function without counting each node individually. So let's first start with this, with the autonomy instance. So what we can do in here, Let's first actually create a function and let's name it. Get an e-mail. For instance. We can see we can have separate video for this. And let's go back to event graph, and let's select everything in here. Let's click Control X to cut it, and then Control V in here. You're basically done is just changed to the location of where this, this cost is called. Right now it is in our gut animation instance function, and let's compile and save it. Let's go to my graph. Now what you can do in here is get our animation instance. And now we can just call it like this. And it looks neater, it looks nicer, and we don't have all of those nodes in here. You can also call it if you click, right-click and get animate for instance. And you have our function here. Now, there is another way to do this. And what you can do is lets me find where is this, okay? Another way that we can create a function is by selecting the nodes that we want to add star function click, right-click, and then collapse the function. And this way we can just name it. Let's call it spawned muzzle flash. And now it's nice and we have just one node to represent that function. Now let's move this a bit here. And for the sound, we can leave it like this, but let's also collapse our service. And we can do it the same way. So you can select everything, click, right-click, Collapse the function and then name it. Something like this. Lets the canter. And for each of this function you can double-click on them and then you will see everything that is inside of them. And ask you if you see nodes that have this blue color with this sign-in here, you can see it also in here. This is, it says f, meaning function. But this is their own C plus plus function that they added and expose it to you so you can use it to span sounds. So that way you can differentiate between what is a function, what is an event, or anything else basically. So in here we have our special type of this is more of a macro, but we have a timeline. And they're all just compressed. Compressed nodes with a bunch of little functions and variables inside of them. And you can also do this with blueprints, with functions. 28. Weapon Line Trace: Let's add some more functionality to Oregon. Or characters be PFAS character. And one thing that we're going to do now is add line trace. Trace is basically just a line between two points, two vector points. So you can imagine pointing here, pointing here. And we're going to use that to detect anything that this line hits. So let's say this is our camera. Whatever we see through this camera, if anything blocks this, we are going to get hit. Hit resulted there. That will give us bunch of information which might be the location of the hit point, maybe the normal stuff like that. So everything will be happening in there. So let's click, Right-click and type line race. We want line tastes by triangles, so you have different ways to detect what you hit. And what we're going to do is by channel, but you also hear by profile else can multiline, multiline trace, which is basically the line trusts will hit something, it'll go through your object, through that object, and then if there is anything else, it will also hit that. So you have multiple results. But with normal line interest, you're just gonna get the first letters, all that you hit, which we want to do for our garden right now. This slide trays by channel. You're going to use visibility triangle, meaning everything that is visible, we will be able to hit this visible means by visible collisions. So if I find an object in here, I'm not sure if I can find it here. Let's maybe do this. Static mesh. Let's open this. If you have a static method is static marshes or collider that we are going to detect sweet, so let's find that. So here is the collision and we have this collision preset which is set to block coming that it will block anything from going inside of this object or wherever the collision is. We can also show it in here so you can visualize our collision. And we can see the third equation is enabled and it is enabled for query and physics. And query is basically the things that we do like ray sweeps and then we have simulation. This is for a rigid body constraints. And we need both of these enabled. And we can also see here in the channels that we have, our visibility is set to block. So we're going to block when our ray tries to hit this object. Now that we have this, we need our vector. So here, neither starting n vector. And to get this, we are going to click, Right-click and type camera manager. Camera management basically for where our camera is, our active camera and we can do actor location and get our co-location. So when we get to the location of our actor, we're going to start from there and now we need the endpoint. And to calculate endpoint, we go again into this. So let's say this is the point or camera. Now we could go into any direction retaining liked. But what we are going to do is, let's say our camera location is there and then we have our camera looking down. We can get forward vector and followed vector is basically a vector of one unit looking forward or wherever we set for this, for the cameras set right where the center of where we are looking at. And it's one unit in length. So what we're going to do is get that forward vector with that length of one. And then we're going to multiply it by some number, let's say 5 thousand. And then we're gonna get way longer a vector, which will give us this line directly in front of us, which we'll use to test stuff. So let's pull from this n-type to get forward vector. Now that we have this, we need to combine. So we need to take the start location because we want to start to be the same. But the end needs to be 5 thousand in length while it's for us. So let's multiply. First. We don t want to multiply, since we're going to multiply x, y, and z by the same number. We can just click, right-click and then convert pin and convert it, or let's say float. And then you can put 5 thousand. And now we can add. Let's click plus on our keyboard and then let's click Add, and let's connect this. Now, we should connect this to the end. And now we, when we click, click, we won't see where the ray is going because we don't have drought the book type enabled. So let's do that. Let's do four duration and duration right now is five seconds. So when we cast rate would be five, it will stay there for five seconds. So three components save and let's test this out. So now when I click left-click, we can see my array cars hitting this and it will stay for five seconds there. We can also test where it hidden what happens. So the green line shows you basically wherever I could have gone or the direction. But we have this red point that says very toxic hits an object. And now that we have this information, let's open up our character and now we want to use this to do something with it. First, let's disable our AKS. We can see that it works fine. And we have this out here. So if you remember when I talked about the heat information, this is a disease. So if you click, I think we can split struct. Now we have bunch of options. You can also, if I click Control Z, you can also break the result and you can do it like this. I prefer this face. We're going to like this. Now we have our heat impact point. And that is that red dotted spawns when we draw the bug. So let's click spawn and meter at location. And we want to spawn. So for this, now what we are going to be using, so if I go to FPS weapon, we have this bullet hit and it's called P bullet hit. So let's go back to here. And let's find it. Now we need this location which sought out heat input point. And everything else is fine to stay the same. So let's save it and I stopped. Now you can see how the park point, we get the particle effect. 29. Chapter 04 Introduction: So in this section we are going to learn how we can make horizontally select a random location and then go to it. We're also going to add some attacks to the zombie to follow the player. We're also going to learn how we can add some audi are and how to create behavior trees. Odd AI controller. So our, our character or a zombie character becomes anonymous. I'll say if you come closer to our enemy, we can see that he'll start falling us. And you can see here the sound of roaming. And he comes close. He's going to try and talk. So this is our tree we're going to cover in this section. It will be pretty exciting. Can you see how you can create a zombie that is intelligent and follows you around and also avoids obstacles. 30. The Zombie Pawn: Now that we have the gun setup and our character has the ability to foot, and now let's add something that she can show that. So let's click, right-click and click on the blueprint class. We're going to add the zombie Tara games. So first we need to choose which Blueprint class you want to select for our zombie. And we don't want an actor because actor cannot be possessed by AI. We'll put the pond because even if it can be possessed, he doesn't say when movement for our, for the character. So to move around, we could add it some custom functionality for that, but you can just use Andrea's character. That includes the ability to walk around and stuff like that. So we're going to create a character and let's name it BP zombie. Now, let's open it up and we shall basically similar setup to our FPS character, but we still need the mesh. So for the mesh, what you are going to do is take our male zombie and you can see here his name so we can sell at him. Let's click on the tab. Here in the mesh, we can click this button to automatically set our mesh to whatever was selected new content browser. We could, of course, click in here and then try to search for him, maybe type male zombie. But you can also just conveniently click this button and just keep the searching part. Now the tick have added here we can see that he is rotated wrongly and it's not in the right position. So let's click E and then rotate him around. And if you see the rotation is small, you can just enable this. So you can kind of rotate him exactly to the 90 degrees. Now in here it might say sometimes some number then 0.99999. That means that it's kind of close enough because there is some rounding. So this is still 90 degree angle. So unpolluted scheme like this, but we also want him to be his likes to be at the bottom. So it's more human-like this. Now, it might be hard to locate exactly how to put his legs in there. And what you can do is click on perspective and click to the left. And then now we can see his truck character directly from the side and the orthographic view. This way we can position it was different him exactly where we want to use. Something like this is fine. Maybe move him a bit back. And we can see that he's size is good for the capsule. But if you ever have problems with the size of your character, you can decrease the size of the scotoma. Or you can also change the capsule height to create a smaller or bigger character. Now this is appropriate for our character, so you're going to click compile and save. Now let's go back and find out BP zombie and let's put him in the game. And you can see this is our zombie. And you can also see that the handrail kind of put him to stand in the level, but if he's maybe in the ground or something but you can do is just smoking a bit above the ground and then click on your keyboard. And it will automatically snap your character to the, it will snap this polygon of your coherent directly to the floor. And we can see that now our character looks like he's standing on the floor. So that is the basis of their setting up our blueprint class for our new character. 31. Destroy Character: Now that we have created our zombie, Let's work on destroy him. So we need a few things for that. So if you look at our zombie, we can see that we have default on that point. We can put some functionality for him to exploit. Let's go into our pawn horizontally pawn. Let's open full blueprint data. And what thing that we can add in here is a function name that function explored. Now we're going to have three things in here. So what happens when he explodes? He needs to play some sound. Then we want some exposure individuals, and then we want him to be destroyed. Now, zombies, of course, would not really die like that, but it will be way more complicated, creating blood splatter, some more complicated particles or dismemberment that will be also a harder. So this kind of the introduction to this training and object, we are going to destroy the zombie. So first thing that we're going to do, let's click Add and let's click Add feature per content. In here. Let's just take a look. Let's click the content and then starter content in here, Let's click Add. Now we're going to add starter content to our project. And in there we can find a few things that might be useful to our projects. So one would be the explosion. So if I find explosion Q, there is some experiment sounds. And in here we can see what is actually happening. So we have our wave explosion and then it choose random between two different explosions. And it just took some installation and then gives us an output. Now, we don't want to be really far away and then hear him as loud as we would if he was next to us. And that is this attenuation settings. And for this, we need to create a new asset which would be sound attenuation and we can create it directly from here or go into the folder. So let's create it from here and let's find our starter content. Let's see where it could be audio and let's name it. And now we created this. Let's open it up. And let's see how this works. So we have our shape troposphere. So in a char pointer or sound is created, it will create a car. You can imagine it like a big invisible sphere around it where it has influenced. You have two inner, inner radius of the sphere and then fall off distance. Which after you go farther and farther from the sphere, it will play quieter and quieter sound. So let's put this to 8 thousand. I think everything else should be fine. I know we can see these settings is added to our whole, this whole queue. So we should hear it quieter and quieter. Okay, let's close that. Next thing that you have in here is the explosions. So it's fine. It, if we've got two particles. Let's see, we can use this one. You can also maybe combine multiple particles, but for now we can use this exposure that you need a second for the feds to composite. So you just added this to our project. And now we can see our exposure. So now let's put all that together. So in our explode, Let's click, right-click and then sound at location. And location, we want to put it on ourselves. So let's get actor location. And this weight will always be wherever the zombies. Next we need a sound asset. Let's type explosion. And we have this export from Q. And this is the parotid. Everything should work correctly and also have attenuation in here. We can override it, but we already have Our correct side or q, so you can live with that. Next, we need spawn and meter application. We again want to spawn this on top of our actor. So you can pull it from here. And there definitely not important to us as ulcers, everything else in here except arbiter template. For that, we need p explosive. So let's click here type exploded. And now that working. And the last thing we need. Destroy Actor, you want me to be destroyed and then, or before that we want our, our particles to respond. Now we need to activate this function somehow. So this function will always execute this, but we have not activated these activities. Let's go to our character. So let's go to Content, FPS game characters. And then we have our FPS character in here. If you remember when we did the line trace, we can now also do multiple things in here. So let's get her out heat Dr. And this is the hotter that this is the general class of data to hit. But we won't specifically to find our zombie type BP zombie. Now when you cast directly toward BP Zombie, we can get out of his farm fields and one of these functions is explored. So now when we re-cast with our visibility trace, we create a line. If it hits a zombie, it will check if it is a zombie. If he does, it will find this function and activate it. And if it doesn't, it will go here, which is basically nothing for. Now. One other thing that you need zombie is lock down here that are Collision Presets. We can see that our visibility is actually set to ignore. Want to set it to block, which will make it, our array will actually hit something so we don't want to ignore to change this. We can click here, click Custom. Now without Collision Presets, we can we also need to set this to Cleveland enabled. So we have our query and physics and then we want to enable these two are actually just visibility since we're using visibility triangles and we could track that in here, will also be using camera, but we're using it. So after the data, that should be fine. And now we're testing against this mesh. What is the collision of this mesh? So if you look in the viewport, we have this collision, but this Clifford is not collision of our metrics Curry from the cash-flow component that you use for the general movement of the character. But our character is more specific. It has arms, body, legs. Retrial should detect that heat instead of this general capsule. Because if you use this capsule for collision detection, then if you cast right here, it will detect it in here, in here. So you want more specific to his body for that views physics assets. So if I double-click on our character and open it up, we can see that we have this physics asset and it is just generated when I imported the character. So it's not perfect, but it should do the generally okay job. So you can now see that this is way more specific for actor. And if the ray casting here, it won't hear the character. Here, one here the character. Now of course you can click on one of these and change them up. You can also create new ones in here. But for now I think in general this is ok, so you don't need to do too much editing, but if you really want to do specific, you would maybe create one coefficient here. So we have detection here. So right now, if I can strain here, it's one detected. You can customize this until you have it perfect as you want it. So head is also a bit smaller. But yeah, so for now, let's leave that how it is. Now let's test starting out to see if we miss something. So let's go to our character. Let's try to food. We heard the sound, we saw the explosion and also our character disappeared. 32. Overlap Events: So now let's add some options for our zombie to attack the player. One way to do that would be to add the equivalent sphere and then use that to detect if something comes near the zombie or not. Somebody that's open on BP zombie. Let's look odd. Now let's type Sphere. So let's start sphere collision. And let's type player the deck. So that be the name of our Cleveland. Now this collision has Collision Presets set over a power dynamic, meaning that it will try to overlap everything that is kind of more blends scene. And in here we can see our point also in here. So let's leave that on and maybe we can disable this. And we have also these genital development that is by default enabled. So that lets us actually interact with our character. So let's now put sphere in the middle and let's increase the size. We want. It may be a bit more, maybe 260, something like that. Now let's compile save, and let's go to our FPS character. If you go to our mesh and scroll down, we can see some details about our character. You can see if you do not overlap each other, ponds, but if you do block where dynamic and they should let us interact with each other. So let's, let's actually test that out. Then we are in our, in our zombie character. Let's click on Play the text on that scroll all the way down. Here we can see different things that we can work with. So one would be on component begin overlap. In here. Whenever we start overlapping with some character, something will happen. So let's pull from or other actor and type cast to FPS character. Let's type print. Now let's see like this. So we have our print to track if this is actually working, and then we are trying to wrap it up with our FPS character. Let's hit Play. We can see successful activated. That means the dark character successfully detected our player. Let's go back to our nodes. Now what we're going to do is click, right-click in here, promoter variable, and then name it, go all actor. This way we are going to have a reference to any historic character. So horizontally starts running and trying to capture this specific character. 33. Go To Random Location: So now that we have this area where our zombie will be able to attack test, we want to make it that when he attacks us peace, he starts running towards us. So first thing that I'm going to do is just go into our character. And I'm going to increase the size of this sphere a bit. So let's click on it. And I think they still, I'd say 356. There's a bit too small for me, so I'm going to increase it. So when we come in here, it will start running towards us and then he'll start chasing us. The kind of logic that I want to have for the zombie is that zombies will be roaming around randomly in this level. And then when they detect us, they're trying towards us. So let's start with that first we need Nav mesh volume. So if we go in here and go into volume, we have this number of pounds volume. If we put that into our level, we can see that it's pretty small and they wanted to be way bigger than this. So let's zoom out, maybe even increase the speed of our camera. So mild way out, this is all full level. Now, maybe we don't want to go in here, but we can customize our level later. So let's, let's actually increase the size in here. So let's type 100. And this is kind of taking our whole level. Now. We don't want the value to be that big, but for now we're just going to increases. So it kind of texts the size of our whole level. Now as disabled this uniform scale and then let's scale this to, let's say 50. Zombies will never be able to go onto the buildings and stuff like that. So this navigation volume does not have to go vertical. So let's do ten. Let's do two. Maybe. For, maybe something like this should be fine. Now, if you click P, should be able to see our navigation. So let's first, yeah, we'll have to build it. So let's go to Build, and let's click build pets. Now that this was built typically p, We can see these green area. The green area basically shows us the parts where we or the zombies are able to go. And if you come closer to some objects, you will see this where it's kind of broken down and that's just broken down because there is some objects in a way depending on your properties, you can also decrease the distance like in here, which since we have this really big number, if it is kind of low resolution for all of this, you can go to Project Settings. And in here, Let's find navigation, navigation mesh. And in here we can increase the tile size, cell size, height, stuff like that. For right now we're going to leave this, this quality, but just keep in mind in the project settings. You can play around with the settings and create maybe more detail, but of course more performance. You have to balance that out button for now for us, I think this is fine. Now that we have this, you are going to create a few other blueprints. So let's create a new folder in the blueprints Dynamic AI. And in here, Let's first create a behavior tree. And let's call it b. T is zombie. Behavior tree is basically kind of a logic for what zombie is gonna do. So we started from here, we can add our sequence. And then in here you can have actions. So one of the actions will be fine random location on the map, but go to that location, maybe wait a second or something like that. So this is kind of the logic creative. You're going to put everything in. Now one other thing that we will need is if you've got are different for intelligence, we still need the blackboard. And we could call it BB zombie. And Blackboard is basically an asset. So if you go into the behavior, you can set it in here. And Blackboard is just an asset where you hold variables for our behavior three, so if we go back to the hair and three, we can see there is no way for us to store variables. But since we attach to the Blackboard, we have keys that you can put in here. And you can actually have like inheritance. We have blackboards that are touched on another blackboard that add some more values and stuff like that so it can get more complicated. But for now we're going to use our Blackboard to store values and then we have our behavior tree to actually run the logic. And third thing that we're going to need is I controller. This is just a controller. That does not mean the player to work. So let's create that and let's name it. Controller zombie. Let's open that up in here. Let's go to Event Graph and less delete all of this. Actually will need the event. Again play. Let's look right. I can type run behavior tree. So this behavior three, we run onto this AI controller and it's called BT zombie. And now that we have this, we also need to click on our zombie and then click Edit BP zombie. And if you click on this self, we can change AI controller class to be a zombie. The heart level logic in here is, we have a zombie. It will get, when we click Play, it will get possessed by our AI controller, which is this. When our IR controller starts working it to random behavior three, which is this and this because we'll run out of the logic for our zombie. Now, we need some way for our zombie to detect what is around him. If you pull from here, we can see all the different tasks and these tasks made for us by Epic steam. But we can make custom tasks and custom stuff. So one thing that we will need is run a query. And query is basically Environment. Environment query where we can kind of look at things in the environment and kind of pick an option for them. So now we have these three. We can also add another thing in here, which is environment query. So in this artificial intelligence tab, you can see a lot of stuff here in this mass traumatic smart object and stage three or other things added specifically for this CD sample that we won't touch will only touch environment query here. You can aim it QS, random location. In aqueous you can see works similarly as our behavior three, because you can run multiple, multiple things. But what we want is just points in a circle. We just wanted to get some points in the center circle around this. Let's say circular radius is 2 thousand. We can make this a 100. Now let's do 12 points. And this is the circle, so it's all around us, so it's not just in front or something like that. Let's see if we can also add a test in here. So if you right-click on your task, you can add a test to see. So maybe one, just the distance. We want our character to arrange minimum so we don't want the character to move like ten centimeters in front of him or something like that. Maybe want him to move at least two hundred two hundred units. And now let's go back, back to our behavior three. And now we can find our random location. And now we have the run mode, which is basically what you want to take from so we can set our matching. So if you remember, when we created this task, the task set, we create a circle of radius of 2 thousand units, which pays between. So you can imagine, see if I can, with this. So you can imagine if this throat is our character, it will create a circle around the character and then it will create equally spaced points in it. Click Create 12 points in minimal space between. We will have to be a 100, create points around our character. And it will say, in this area, which we set it to be for our distance, at least 200 units. So in this area, you cannot create any points. Then we have these points around where we are basically selecting from. So now that you have that and we have our limit, we are running this test. And now when we run this test, we want to save the information somewhere. Something needs to be saved from here so we can use it somewhere else to actually use it to go somewhere. So we can go to blackboard. Let's say. Or you can just name it location. So we can just create a new key in the blackboard. Then we can create a vector. So that's kinda, that's basically location. And then in here we want to use the location to save it. So we run our test. We get our matching, we get a random one from all of the matching ones, and we save it to location. And now we can run another task of retries Move tool. And this is basically just a simple multiplication which we'll use our navigation that degenerated switch will move around obstacles, stuff like that, and it will try to move to dislocation. What is the location? It is our location that we just saved. In this behavior tree. How tasks are triggered is from left to right. So we will first trigger and accurate equals square root and then we will run Move tool. And for this, you can also see the numbers in here, 12. And if I move the location, you can see now this is one and this is to have the indicator of how our tasks are going. So it goes 012. And after he moved to, let's say, let's add a task which is weight. So this is some default data or other data it useful. So let's say it waits 1 second, or let's say base two seconds and there is 1 second run deviation, so it can be between 13 seconds. And then when this finished benefits, it will go to sequence, it will go back through it and then it will start again sequence, and then go again. Now, if you have, let's say you have another sequence in here. Actually we will need a sequencing here also. If you have something like this, you can see exactly which number does what and what happens. So it goes 01234. I said it happens. It will go to five. After the five, there is no six, so it will go to 0 and then it will go to one, to two. And so that's kinda the loop that happens. Let's save this and we actually don't need this sequence. For now. We can delete it and connect this. Now let's see if this works with our character. So let's click play. And if you look at the summary, we can see how he's fine. He's seen as foreign location when they're waited a bit and then went to another location. Now he's speed is a bit too fast, we're going to change that. But you can see that our random location finder is rocking. 34. Follow Player: Okay, so now that we have random location movement for our zombie, Let's make hematocrit player or at least got to Arthur Player. One thing that I did is increase this radius from zombies. So we can more easily see when the zombie attacks us. And we can even maybe increase this a bit more. So let's click this, make it maybe 1 thousand. Let's compile, save. Let's go back to behavior of three. So what we're going to do in here is add another sequence. And when our character goes close to the zombie, will go to the other sequence where somebody will do something else in here, he finds a random location most altogether and wait a bit, and then do, does it again. Now before we start with that, Let's also go to our character movement. Now let's maybe decrease max walk speed to, let's say 300. And let's see how that looks. And we consider zombies is way slower, which is nice. So let's leave it like that. Let's go to our behavior tree. So first thing that we're going to do is let's select the sequence and copy paste it. Now that's connected sequence to the sequence and create another sequence which is going to be here. So what will happen is we're going to go through this sequence, then go back in here. Now you also have a selector in here instead of the sequence. But for now we're not going to deal with that since we don't need any more complexity than this. So what you want to do in here is create our own custom class, custom tasks. So let's click here. And so we have this fork to create the tasks Insider behavior tree instead of creating it separately, but you can also create a separately. So let's name it BTT task. All player. Let's click Save. Now in this task, what we're going to do is if you click on the Functions, we can actually see what are the functions we have in disk in this behavior task class. And what we want is this receive execute. That basically means when this task starts executing what's going to happen? This is basically the same as big in play for our blueprints. It's kinda has a similar effect. And then we can receive tick, which is basically like events deacon or blueprints. But for now we just want to receive execute. Before we start working on this task, let's first go back to the zombie, and let's go to Event Graph. And in here, we want to do something with our character. So what we want to do is basically take the reference of our character, FPS character and say that you want to follow this character. So let's go back to our a zombie. And we need to save a reference to the player somewhere and where you want to save it. If you go to Blackboard, we can create new key. And let's create an object and name it target actor. And this is where we're going to save our reference or a player. And now in here Let's click Get Controller. Reference to self. We want from a monosomy to get the other controller that we have our Blackboard so we can type Blackboard. So you can also get to the Blackboard. Now that we have the contaminant Blackboard, we can also set value. And you can set values objects. So if you remember in here we created a subject target doctor. And let's type, make literal name, and let's name this target actor. Going to save our character as that object's value. This, this can also, you don't have to add this. But what efficiency we can do once we know that we want to trigger only ones. Because when we get the reference layer doesn't really follow us even if we try to run away from him. So you want to this, for this to happen months. And now when we set this reference, so this time France, right now when we created these empty, but when we start the game and we come close to the zombie and we triggered this. We are going to save. Actually we want to get this going to be bad because you are going to trigger a bunch of stuff. We want to trigger this only once. When our cast is true, Let's compile save. And now the total value, value is changed in here. We want to use this value to find the location of this target and then follow it. And that's something that we're going to do in our full player. So let's type Blackboard value as object. Now let's look right-click in here and split this struct type target actor. And we also need this to be an object. We're gonna get the reference to this actor. And let's also cast of ****. Since we only need the **** information, means you have to cast specifically to BP zombie or FPS player. We can just generate upon. Now let's create a note card. I move to. This is as useful nodes that you let us basically simple more to some location but using navigation mesh for this. Then we want to set this to target actor, since this target actor is applied not to somebody. And also we are going to duplicate this and then pipe self actor sense in our Blackboard, we have this cell factor reference. We want to take that and also cast upon. Let's copy paste that upon. Let's connect this and connect this to the pond. And obviously with reference to the zombie and to the player. And we want to say our zombie, okay, you need to go to the player and this is his destination. And let's type get actor location from our player. So target actor is a player. Now let's connect this here and let's set a deceptive alias to ten. Now, this is a simple task when it starts, it will do this and then you can see this timer, so it will take some time to execute. And then this timer finishes. It will activate on success or fail. And for that, Let's type finish. And we want to finish execute and you want to finish it on successful and fail. So let's create two of these. Let's just connect them so and to be successful, we fail. And for success we can just enable this. Now let's go back to our, let's see. So you have this activated. We can go back to our behavior tree. Now in here, we need our task and click on tasks. And now we have our task enabled in here, maybe after he comes to the player for now, Let's put just a weight. Let's say five seconds. Set this to 0 so we know exactly five. Of course later we are going to put some other stuff in here like attack player or something like that. But for now we're just going to wait. So let's see if we have everything set up. We set our input. And yeah, Also another thing that you need to do is how are we going to go from here to here? Since this sequence, what it will do is run a vacuous query mortar location, wait two seconds, go back to sequence, run a q-squared SQL query more to location, and do that. Basically infinite. Want to click, right-click in here and then add a decorator. Decorator is a condition for this sequence. And if the condition is false, when we go from the root to the sequence to the sequence, it will say, okay, condition is false for this sequence Stephen activate, we want to go to another sequence. So let's add that decorator which is conditional loop. Let's do target actor when it is not set. So when it's none, which is in the beginning, it should be none. When it's none, this sequence is true, but when it becomes something which becomes player, when we detected player in here, it will become something and then the sequence will be false. So it will go to the next sequence. So now let's open this up just to see if everything is working. So we can also be realized sequence. So let's click Play. So I can see he's had to move to. And when he comes to the location, you should wait a second or two and then go back to our own ikea square and then move to. Now let's see if we can activate. So right now it does not seem to activate. Okay, we did manage activated, and now he's following us. So we had to come pretty close, but now it's working. And you can see here, follow us as long as he needs to. But if we wait here, wait five seconds, and then she will start to fall off again, or at least for me. 35. Zombie Animations: Now let's add some animation start zombies, so he does not depose the hallway to the production. So one thing that I did is I went to the mix somewhere and found some assets. So if you've never used to make somites pretty simple, you just click Upload character, upload the FBX of your character. It should automatically detect the record created the Mixamo rig for the zombie. If not, it'll give you a simple menu to just put points on his arms, legs, and stuff like that. And after that you have your character inside mix somewhere in here. For the zombies, I just typed a zombie and found all of the different zombie attacks runs and stuff like that. And I just chose a few of them clicked. If you are taking the the running, you'd need to make it in place so there is no root motion. The reason for this is because we are going to move the whole character, whole capsule with us so we don't want this animation to be moving. So it was Monday this week, how it will look like in game. So you need to set it in place if you're changing some way animations. And I also added, so I added ILO, attack and running. But for now we're just going to use idle and run to add some more fun to our character. So first thing that we need to do is create our animation blueprint. So let's click, right-click on our skeleton of our character and click Animation Blueprint. And let's type ABP zombie. In a side of here. We want to go to events and then we have this try Get Pawn Owner and let's type velocity. We're going to get velocity of our character, and then we're going to get the vector length. So we actually just want the speed of our character, not the direction where he's going with factor gives us vector basically gives us the direction and speed. So we just want the speed, so we can just get vector length. Now let's create a variable named speed. And let's click, float and save. Or set our variable every tick on the speed depending on spin over character. Just so I don't forget, one thing that I changed in our blueprints is just change these secrets to selector and then others. This blackboard conditions, if you click right-click, you can add decorator and then add the Blackboard condition. And I added on the results change self. So meaning that when results changed from server, we'll abort everything in here. And then we need Blackboard key that we want to see if you change this target oxygen, if it's not set. If that is changed, we want to avoid this. So what will happen is we are searching for the player at the moment we find him. We're going here and we follow the player. And then whenever we go to selected, it will always select the secrets. So this was just wanting that I change there. So let's come back in here. So we have our speed. Now in animation, we could create a state machine, but there is an interesting thing that we can do in here, which is if you go back to our character and let's right-click again another male, male zombie skeleton and click Create. And here we have these different things. And firstly click the animation blueprint, but we can click on anything else and you can find the same things in here. It'll just be a bit harder to find a skeleton. So it's just easier to, while you're working, you can just click, right-click on Skeleton Create. And everything is created specifically for a character. So let's type one day and name it some more. And this space is interesting for blending two different animations. So in this timeline, I can put animation in here and anywhere in between. What I want to do is take my island nation, put it in here, and then take my running animation and put it in here. Now if I hold Control and we can see how different points on this timeline, the animations are blending. So here he is kind of running or walking. And if you remember before what we did or BP Zombie, we changed our max walk speed of 300. So now we have this value of 0 to 100 if you change this horizontal axis to 300. And then move our points towards the end. Now we have the blend between 0300 depending on his speed. Now one thing that I would change in here is just he's acceleration. I would put maybe 500. More slowly gains the max speed. So you can see the change in animations that we will get in here. So you have this bounded between two animations. One simple thing that we can do in here is take our one, the zombie moved blend that we have and just connect it directly to our output pose. This way, we have this one value, which is float, that will change from 0 to 300 and our speed of our character is 0 to 300. So you're basically blending between these two. You can see already mentioned supplied. So now let's go to Viewport. That's liquid metal mesh. Let's look. Use a mission blueprints and type B. Now if we select Horizontal, we should be able to see him idling and running. So I tried. You can see how somebody run. It can slow down. He's an American, slows down. And you'll see when he stops and starts running, there could be some acceleration before he starts running at max speed. And we can activate his ai to start following me. Now that this is working, we're going to start adding some text or some BN, make him a target. 36. Zombie Attack: Let's now add a tag to our zombies. So one thing that I added in here is these axons. So we have some indicator that zombies attacking us. And I also hear from Mixamo are zombie attack. So we have that too. But we're going to do basically is if you go back to our blueprints, instead of this weight, we're going to add a new task. So let's click new task and beautiful a player or actually new task, blueprint base. Let's name it. Attack. And click save our function and let's click receive execute. First, what we're going to do is get the blackboard. And we want to get Blackboard value as object. And this object needs to be our self. And we need this to be a object. Now let's cast to character. So what we need to do in here is create a montage in play to viral attack. And let's set this up and now let's create a montage. So if you click, right-click in here and then click on the animation, we can find here and measure montage. But we can also do the easier way where we go in here and click on Image montage. Let's type a zombie. And inside of here, Let's find our asset browser and find our attack. Now that we're attacking here, you could change planning lead times if you want. But for now, I'm going to leave it like this and we have our default group slot. And if you remember from before, we need to add that slot in here. So when Armando of interrupts, it will go into this slot, which is after our move, so it will override the move. So let's compile and save. Now let's go to our tasks, zombie and let's click Play montage. Have this useful play montage function that is also delayed. So we can actually wait through the whole animation and then do something on a mission completed. We want basically Skeletal Mesh Component. So I'll make one more dish can only plan skeleton methods. So that's why when you had to cast to the character, because if it's just our objects, we cannot find the scatter. We've had to cast it and we wouldn't get anything. So let's type skeletal mesh. You can actually just type mesh to get our math. We can connect these two Skeletal Mesh. And then here we need a zombie. Now that you have this, Let's also do something before and that is play sound. And we can play some 2D since this will only be played when zombies are really up close. So it's going like this. And let's find our Some be sound. This task will be activated when somebody comes close, it will attack, it will play zombie sound and it will play this montage. So now we need to go back to our sequence and let's find our task attack. So now instead of weight, we're going to have this task, but we also need to add something at the end. So when our task is completed, our animation is completed. We need to track if it's successfully completed. For every task, you will usually need to have some some resolution is, did he succeeded it fail? What happened here if for some reason it gets interrupted, you can notice. And now we have finished executing, which means that after a zombie attacks, it should go back to sequence and back to fall player. So it will just continue doing this indefinitely or until it kills the player. And now let's see if we have everything we should have. Now let's minimize this and let's test it out. Zombies coming towards us. The sound is played and he's attacking. And we can see that it's working out a few. We will be looping and trying to catch me for as long as you can. A dark when he comes close. Now, one thing that I don't like is that he comes way to cross before he attacks. So let's change that. Let's go to our tasks zombie and then we need to check this one, I think, yeah, we have this acceptable radius. Let's put this to 30. Let's see how that feels. Let's click play. Stopping place. You still comes way to close. It seems we will have to set it way higher. So maybe like a 150. Let's try this. Now. That's not a bad distance. I would maybe put a 100 because I think right now he's kind of a missing us. So let's put the 100 compile save. And let's see how this looks. Now this feels right, so I'm going to leave it at that. 37. Game Mode HUD: So now let's play a bit with our game mode. So if you go to FPS game and blueprints, we can open up our game mode. Here, if you remember, we set our bp FPS character and that's basically eat that you setup in the beginning. Now we're going to use this to add also a widget to our screen. So let's click, right-click in here. I'll go to right-click and blueprints. And let's type user widget. Now let's name it again, mode. This is going to hold things like count down and the zombies remaining. So we can actually started adding some rules to the game. So let's open our user widget. Let's add our canvas. So let's type it in here. Let's add some texts. This text we're going to anchor to the top-right. And maybe move it like this. Let's type time, right? Meaning there's going to be how much time you still have to finish our quest. And then we also need our zombies remaining. Something like that. Now let's also set our position white or whole numbers, so they're already in the whole numbers. That's good. And I'm going to put these numbers to the whole numbers. So you can have them align in here. But you can also actually do this. So it depends how you want to align it. For 42, okay. And we also need to mark texts. So that's okay. We can duplicate both of them. So it's like one duplicate. And this is just going to be a number, let's say five. Or actually it's going to be timed. So let's set the 00, something like this. And then let's duplicate. And let's set this to zombies remaining maybe five, so you can see how it looks. Now let's also align them. So this is 96, this one is 96, this is 44. So we need these 44 so that an exact alignment. Next thing that we're going to need is another text and this is going to be taxed for the countdown. We need this in the center, so change our anchor. And let's put the number three in here and then put this 2.5 and then 0.5. Now, we can also set this to 0, interest and some stuff. So let's do 48 in here. And we can also see that it's a bit to the left. That's because this justification is not set to middle. You can also size the content if we want an increased maybe 64. So we have a big counter in the middle. Now that we have this setup, let's add this to our game modes. So let's type Construct game mode. Judy, that's added to the viewport. Now we can just test it out. They should work fine. And it does. You can see in the middle are countdown and at the top right we have our time remaining and zombies are menu. 38. Zombie Roaming Sound: Now that we have added some zombie animations and interaction, let's add some sounds when he's walking. So we do have sound when he's attacking, but we don't have anything when he's roaming around. And I found two terrifying audio samples that you can use. Before we start doing that, let's go to this object called City sample overload your data script. And in here you just need to disable begin play and you can also disable on enter sandbox analysis and books. So this is just so we don't hear all of the audio from the city sample game because there is a lot of car is going around and stuff like that. Like people in the world talking stuff like that. So we don't find any of that. So you can just go in here. So you can just type over allowed your data so we can go in here. I pulled out with your data. You can go into this asset and disable the events. So now that we have these two audio tracks, what you want to do is combine them so we can kind of pick at random one of them. To do this, we can select one of them, click, right-click and then click Create q. Then let's go inside the queue. And in here we can see that we have our zombie roaming the tree, just clicked, right-click on. But we want to add this one so we can just pull it in here. And this Q asset basically gives us options to modify or combine different audio tracks. So we have these two. Now we can click, Right-click type random. And now we have this random node where we can put as many of these tracks as we want. And it'll just pick one of them when it wants to play something. And before we continue, let's just click on both of them. Click looping. Sure, it picks it loops. One thing that we need to do in here is just set attenuation. So it will not so nice if we hear all of the zombies at the same time with the same volume. So we can use attenuation to basically modify that. So it's the Catholic in here and go to sounds and click on sound attenuation. Let's name it. Zone, be roaming attenuation. Now let's save all. Now let's open this up. And we can also close this and go numbers that they found for this is 0 for inner radius and let's say 2 thousand for the fall of distance. So basically, this inner radius means that we can put, maybe if you go close to a certain distance of the zombie, we'll be hearing max loudness of these sound. Even if you start coming closer and closer. There's a cutoff where if you're coming in closer, will still hear it at the same loudness, which is the largest it can be. I just set it to 0. Now let's click Save. And now we need to apply the star zombie roaming Q. Let's look output attenuation and let's type the zombie. Now this should work properly, but we need to add this to the character. So it's got total zombie. And in here, what you're going to do is add an audio component and you can see it in here in the common. You can also type out if you don't find it. We can name it. I'll do roaming. Now we can have the sound. Let's type zombie and the rank r q. That's going to compile, save it. Now when we play, we should be able to hear his army when we come a bit closer. So you can see if you can actually hear the domino. But if you come closer, we start hearing the sound. And now he says coming towards us and hear him louder and louder. And then the attack. Now what I would like to do is to change that when the character tax, we actually don't hear the roaming sounds. So that kinda stops going on when we ran the zombie attacks. So let's do that. Let's go to our characters male zombie. We actually want his behavior three, which would be in here, I think. Now that we're in this task attack, Let's add our volumes so we're going to add it in between here. So we have this convenient play montage, which has this delay. So you can see this column that indicates that this is a delayed events, so something can happen over time. So we have this one component tone and uninterrupted. So first thing that we need to do in here, somehow get our audio roaming component, but you cannot get it through this cast to character because character designs have this component. But the trial BP zombie Africa has it. So we have to be more specific with the cast so it's cached on the zombie. Zombie. Let's delete the cast of characters. Now let's get Audi or roaming. And when you have this, Let's then type volume and let's set volume, multiply it. And we may be not, don't even need to completely remove this sound, but you just make it quieter. And then let's copy this and set it in the end here so we can change this. Bring it back, Wendy. Wendy play, mother finishes. Now let's double-click in here just to make it a bit more readable. Something like that. That's compile, save, and let's see if this works. So it does work. One thing that I would change is that this might be a bit too strong. So maybe 15, just to have a little bit of sound. Does the salt. And now it works. 39. Chapter 05 Introduction: Welcome to the comment section of this course. In this section, what we're going to do is mainly to do with the weapons. So we're going to add this cross here that you see and also are held apart and I'm account we're also going to work with the pickups. So if I pick up the health pickup, we're going to get some health and of course it should pick up some ammo. You're going to get some AML. We we're also going to work with our weapon a bit and that is, I do go to magic fire, also how our MO works. So when the fruit we actually lose some ammo. And also shooting zombies, are they actually attackers? So this is going to be very interactive section where we're going to work mostly on the weapon and how it interacts with zombies and pickups. 40. Crosshair: Let's now add our cross character or characters. So I have this folder that I created, UI and textures, and here we have a cross, cross hair texture. To add this to the character first, we need to use a widget. And the use of Egypt is basically kind of like a front-end or visual part of the 2D UI. So she got to UI. We can click, right-click blueprints. And let's type user. We dropped in here, Let's click select, and let's name it. We dropped character. The inside. In here we are right now, cannot see anything, but this works similarly to any other blueprint where you have your designer, which is visual part, and then you have your graph, which is basically a logic part. What it will do all of your logic. If you go into the designer, Let's firstly Canvas, you will usually have to put this inside to just get the general area of your image. And then let's type image. And this is our image, so we can basically move it around this canvas. So how, how the widgets we just work in Unreal is basically they, they are inheriting in a hierarchy one from another. So you have this canvas in here are imaging is inheriting. This slot can span a slot which gives us positioning and stuff like that. If you did not have this canvas, so if we have to delete it, but if I did not tell his kindness, I would not have these options in here. I have on this. So depending on what who is parent of who say if I put over here and then Image trial of the overlay, we can see that we have this overlay options, but we lost our movement options because this overlay works is a bit different in Canvas. So that's kinda how inheritance works. So let's smoke cannabis here. And the other line. Next thing that you need to do is set it in the middle of the screen. Or actually before that, let's go to image and type cross-sell. And we could just try to set it approximately in the middle and then scale it approximately. But you get into a few problems. So if you try to scale this image, we can simulate how it will look when different aspect ratios. And you can see if someone's monitor is a bit narrower, we can see how it changes where the middle is. And to fix this, what we need to do is set this alignment or anchoring to be in the middle. That means that this, this imagery is gonna be anchored onto these points. So whenever we treat us be trash, it will find where this point is and how much it needs to offset this image based on this point. It is point is on the edge. It will always try to, let's say, x to be 500 and why maybe 300. And it will always try to leave that pixelation there. But if you have it in the middle, then to love is a query to the middle. Now let's put this to 00, so our position is indirect middle, but now we can see it does not look exactly. So let's click Size to content and not our cross-fade is through high-resolution. So let's put it to 32 by 32. That should be fine size. And you can see how the alignment is set to this point. This is the point of our image. And if you change this to 0.5, we'll basically set it to whatever the middle point of our images. Now, whatever aspect ratio which shows you can see our image will always be in the middle. And that's exactly what you want. Now let's compile this and save this, and let's go back to our character. In here, what we need to add these constructs. So we need to basically create our widget. When we begin platelets type Character HUD, we need to create our widget. But just creating it is not enough. And this is the two doing DFS character, but creating it is not enough. We need to add it to viewport. And this is important. So it is actually visually, we could create our widgets in the background and then add them or remove them from the viewports anyone to Bartlett's. But we want to add it to the viewport instantly, so we just add it directly in here. No, we should go back and try to play our game. See how we have our cursor, a sensory or ray casting director from the middle. We can see that it also gets directly in the middle. If you zoom in. Now if you try to aim to probably not be in the middle. And I spent a bit of time trying to align it properly. So this is thing that you will have to do from your side. So for me to kind of test the alignment, what I did is if you go back to our characters and then BP FPS character, we have our ME position and not in position which we set in here. We can also maybe move this down to be stopped. So we have our leftmost click and then right mouse-click. We have are not aiming at naming position that will add up between when we zoom in and zoom out. To kind of tie into line. What we can do is click on our arm. And for us to get our amine position and click, right-click and click Copy and paste it in here. So now we have it in the immune position. And then we want this arm toss bean and use animation asset and then a Milo to be set. Now what we can do is if you minimize this image, we can click Play. And in here we can see the position of our gun and we can click in here. While we're playing and basically change our location. This will be saved. And when we are satisfied with the positioning, we can exit the game. Click, right-click on the location, copy, and then go to our aiming position and then right-click here and paste. Then we're gonna have our new Amy position. Now, sometimes you want just be needing to just change the position. You will also need to change the rotation. For that, what we can do is go to our arm. Let's see actually that first, stop the game. Let's go into our animation so we get the access to our skeleton. We have these weapons socket. And also we should have in here previous scene. Let's find we should have specific animation and let's do a model. We could also change the rotation of our sockets if I click Play. And let's move this a bit to the side. Should be able to little by little change the position of our socket. So this is the way that you can also change the rotation and location of your socket. So when you set up your location properly, you can also rotate the socket and position it a bit better. After you do the socket thing, you don't have to change anything. But after we stop, we just have to bring everything back. So if you go to our character, first, we don't want our arms to be in remission asset. We have to use our blueprint. And now this does not look right. We need to bring it back that are standing, starting position being not taming. We can copy this and then paste it into our herbs. And if you don't want to do this, every time, what you can do is in Event Graph on Begin Play, seats in here won't be giving play. We can set get our arms. We can set position. Or this wouldn't be, it would be that location, that relative location. So we could set the location and get are not taming. Then whenever the game starts it will automatically set it to not having position. So you don't have to vary in which position you currently have your arms in here. But after you do all that, you set up your positioning for again, it should be going to the game, should be right on your cursor. And now we can precisely, whenever we want. 41. Damage: Now let's add an option to actually deal damage to zombies. So it's very interesting is that you've just putting a once. So let's delete all of this. And let's click, right-click in the zombie and type damage. Any type of damage, we get a bunch of stuff and there is some internal functions and events that we can trigger that is already set up for us in this character class, for the character taking damage and applying them. So we have these events that you can call us. So event any damage here because few things we get them damage. We get the damage type instigated and stuff like that. Now we only are interested in the damage and we just can call this event. When we deal damage, something needs to happen. So let's first create a variable called celt for our zombie. Let's make it float. And let's give our zombies some default here, let's say 100. And we can actually add some variation to these two slides. Adh. Again, play. Begin Play. We can set our helped to, let's say, a number between some random values. So let's click, right-click and then random loads in range. So it says somebody's don't have exact health every time. So we can set maybe between a T and then 120. And now when we apply damage, what you can do is get our health, our health. And we want it to set it to previous value minus the damage. So we get our previous value and then we type minus and we get to damage. And now we can set it in here. Now after this, we want a brand and you want to track if this is less or equal to 0. So whenever we fall below 0, something happens. And we would call the explored for now. We're later going to make that more interesting maybe, or the death animation. And then our character after that explosive, don't leave the, the character jostling there. So let's click through. So if it's less than or equal to 0, then we can export our character. Now that we have this, we need a way to actually apply them in store character. So right now you can take damage, but we still need to call this function. So let's go back to our character and let's go to Event Graph. Now we need to find where we live trace. And in here instead of explored, Let's delete this since we're gonna do this in the character. Let's type out why them. And now we have this and we don't need any, anything like this. We just need our base damage. Now let's make it a bit more interesting here. So let's do random float. Let's actually do a lot in range and range. Let's make it between then and 20. Of course, you could add more detail than this. We can say that there is a multiplier to hit the zombie in a head, stuff like that. But for now we're just going to apply some damage to our character. Now, let's have some different options for instigate greater cause or stuff like that, but we're not interested in that right now. Let's see if this works. Let's click play the flute or a zombie. And we can see he exploded after maybe six or seven or eight. France. 42. Zombie Dying: Now that attract character can die and take damage, Let's make it a bit more interesting. Let's add some animations. Took his debt. So in-between explode and our branch, we need to add some options. So what I was thinking God, is there'll be Animation and displaying of the zombie dying. After that, we're going to have some delay and then we'll have our dead bodies plot basically. So first let's go one-by-one. So let's take our mesh. This is the measure of our zombie. Let's type clay animation. So we already saw how we can play animation mown turf. And that is good if you want to insert and animation inside, inside, inside the animation blueprint. But we don't find that when we want to kill our zombie will know exactly what needs to happen. So the animation of the debt is playing and then we had some time and then it explodes. So we want a player are zombie that animation. But before that, let's, we'll again from our mesh and let's type animation mode. You want to set the animation mode because we just have to play a simple animation that fund our Animation Blueprint. So let's use a sagittal use animation asset. And let's connect it here and here. And now let's put a delay of five seconds and then our character explodes. Now we're gonna go this one by one because there is multiple things that you're going to have to deactivate because there is lots of happening with horizontal canal. You can see his death animation is playing, but he still has his logic for movement. And after five seconds he explodes. So there is a lot of stuff to unpack there. So first thing that you need to do is we need to stop the logic of his behavior tree. So let's do that. Let's type get AI controller. Let's type self. And so we want to, from this zombie blueprint, we want to get a our controller and then we want to get brain component by component is basically what a nice controllers use for trees and want to type stop logic. Now we want this to happen for a student to stop our logic. We don't want anything to execute here. Now that we stopped that, there is still one thing happening that you can actually demonstrate. So you can see what I'm talking about. So if I click Play, we can seek, you're still coming towards me. And that is because there is still some some options that were activated. So first, when this happens, we want to stop this begin overlap. So while or zombies dying, he can still overlap with our player and then change the dark doctor and stuff like that. So you want to disable all of that. So let's type. But actually it's got from player detect, which is our sphere that the tax, if your unwrapping a player and let's type overlap events, and let's disabled generator operands. So this never happens again. And after that, we still need two more things. So one thing that will happen is the term zombie slows down. So even if we stop our logic, if our zombies in motion, he was still more, or at least that Shruti happens. Let's test it out. So let's make him more viruses and then kill him. And you can see how she's still moving. So let's go back to our blueprints. Left-click, right-click, and then stop movement. Let's do this. Now. Let's test it out. Let's see if this will work. Let's click Play. Now, if somebody stops and falls down, now if I continue shooting the zombie, he's animation will reset every time we put him. Now, we go into this upper logic because we are taking out health. And we go from minus five to maybe minus, minus 40. And every time it's triggered these three events. So what do we want to do is take this, move it a bit to the left and type will do once. Now, this will only happen once after this branch. So all of this will happen only once, which is exactly what we want. So let's compile seven. Let's see how this looks. And their zombie falls in 14, not because this is exactly what you want from me. Now, there is more things that we can do. And one of those things is audience. So let's say we want to stop the audio. Let's move this a bit here. Now let's take the audio and let's type disabled. We don't hear it from there. So let's type stop. This should work. So we can do this. Here. Let's click Compile, Save, and let's see if that helps. And you can see there is no sound of the zombie. Let's just quickly go over it since this is a bit more complicated. So what happens is when the zombie gets us to 0 or below 0 health. Everything after this happens once. So we stopped the logic of our behavior trees. So that says start to random location and go to random locations. All of that stuff we stop it in here, are zombies, stops thinking. Then we stop here is overlapped with the player. So nothing triggers when the player is cos close to him after his dying, then stop his movements since he has acceleration deceleration, which means that there is some time before he stops and before he starts going. And I want to stop it right then and there. Then retrench our animation mode. Wanted to use animation asset instead of Animation Blueprint, which we are using now choose Animation Blueprint. So we can play just a simple animation. So if we go in here, we can see that we can play a simple animation. And then we play that animation, which is that, and then we just stop the music, so nothing happens. Here. We also have a delay if you want, we can put this to maybe 25 seconds, 30 seconds, one minute. This is just kind of how much you want the zombie delay there before he completely disappears and kind of your game will become, of course, more performative. There is less that zombies on the ground. 43. Macros: This video is gonna be a bit shorter, but I'm going to go over how we can create macros. So if you tried collapsing this to the function like we did before, so let's say you try to select this and then click, right-click and collapse the function, you're gonna get an error that is saying you cannot be placed in a function graph. And the reason for this is that we have this delay function. And delays cannot be setting a function. It kind of breaks them, so we cannot do that, but you can set them in the macro. If I select everything again. And these two, and let's click, right-click and then collapse the macro. Now let's name it. Be, dies. And we can see we have this simple node that is a macro. And if I double-click on it, we can see our Oliver nodes are in here. And macro is different from function that it is just used for more organizational purposes. So macro just collapses everything into this one node. But what Android does when you compile this and package your project, you just paste your code in here. So macro is just kind of your group everything together and then automatically ungroup it in the, in the compilation. Time. Functions work a bit differently. So Macros then can be used for, for these delayed knows that needs some time to execute. Awesome. One other thing that is different from function is that macro can also have multiple outputs. If you look in here now we can have or actually we would have to have the execution pins. So function can have only one execution pin. While macro can have as much as you want. So you can create some complicated logic. If you ever need more execution peanuts than one, you'd have to use a macro because function does not allow you to do that. So those are two simple fuse or differences between macros and functions. And if you ever have a delay, you will always have to use a macro instead of a function. 44. Character Health Bar: So now that we can damage the zombies, let's make the zombies be able to demonstrate us. So first thing that we need to do here is to add some health bars so we can actually see how much we have. We have this character hard that you're going to use for this. So let's open it up. And in here we should have our little cross hair here, so it's actually rename it. Let's then add a progress bar. So progress bar is basically a little buttons can be filled or empty. And we can use this basically for our health. So we have product is better here. Let's put it in canvas panel. You have it in here, and let's put it off in the top-left corner. So we have this encoding that these are the top-left, so that is perfect for what you want. And let's increase the size. And how this progress bar works is that it has some options in here you can see the style and progress. Those, those are unique for this progress bar. We have present that goes from 0 to one, that fills up our bar. And then we have, we want it to go from right to left, left to right field from the center. So we have all different options here, but you want the classical left to right. And you can also change the style. So maybe the field image, you want something different to be, background image, stuff like that. For now we're going to leave it blue and white. So now that we have d so that it can feel, let's compile and save, and let's check out how it looks in the game. And it is kind of hard to see from the pop-ups, but you can see that R bar is almost four. So let's open it up again. For now. I'm just going to put it a bit down because we have some pop-ups that go in here. And let's just see how big it is. I think that's fine. Now you can see in here that we have this variable tract and that means that this progress bar basically can be editor. Editor is considered as a variable. That means that basically in graph or any other blueprint, we can actually get the reference to this object and change some stuff. So we're going to use that. But let's first rename it helped bar. Let's compile save. Now let's go to characters, FPS character. In here. Let's go to begin play. And we need some way to access our Health Bar. And we can do that by accessing it in here. So we already have who that you're creating, but we don't have the reference. So let's create that. Let's click, right-click in here and then promote a variable. Name it character. It should do reference. Now let's connect it in here. Then we can break this up, just connected like this. So it is a bit cleaner. Then after we add it to the viewport, we can also reference this. So I can take this reference and then type health bar. And you can see we have this access to a helper and it wouldn't let us access it if this is variable was set to false. So now we can type per cent. We can set, our presenter, of course gets presented if we ever want to see how much we have. So now what should we set these present two? So we should set it, since it goes from 0 to one, we should set it to present the job of our, of our health that we have. And we can check that if we click plus on variable and type max health and change this to float. And then a type of Health. And I'll leave it as float. And now whatever we want, we can just multiply or divide are held by the Max-Cut and we should get a percentage of how much water we have. So let's put Max Health to 100. And if you put this to, let's say 70, then take our health and our Max-Cut, then divide 70 divided by a 100 should be 0.7. We can track if that's right by playing and seeing all bar is at 0.7 mark. We can see two there. So that way we can have our health status of present. And let's also do one more thing here. So our event begin place getting a bit crowded. There's bunch of stuff lineup. So to kind of organize these better, what we can do, click, right-click and then type sequence. This note lets us organize stuff a bit better where these things will be or R naught will be triggered from top to bottom. So we can then 0, then one. There'll be triggered in sequence. So instead of having them, I'll trigger each other. We can trust, set it in here. To trigger like this. We can do attaching and animation instance here. Let's maybe move it a bit up. We can do this in here. Then we can call the third one in here. Now it looks a bit better. We know what is executing a sensory separated it into the components that are separate, that do not have anything to do with each other. You can easily see what is happening. And we can even an organization organized it more. If we select the HUD setup, we can click, right-click and then clubs to function and name it set HUD. And this way, it is even more organized. And of course we can do this with these ones and this one if you want. But for now, I'm going to leave it. As is. 45. Getting Hurt: Now that we have the **** bar, Let's make our zombie them in-store character. So first thing we're going to do is open the animation montage for the zombie attacks. So what basically we need to do is at certain point you need to test if the character is being hit and then apply damage. So first thing that we're going to do is let's create a notify track or actually notify. And notifies are basically triggers that you can use animations to trigger some event later in the blueprints. So I can use this as a montage. Notify. Now let's name it. Apply damage. Now, they will be fine. Let's then go to our severities. It's in the blueprints Ai. Let's go into our task attack. So this is when I was on B actually attacks. Here I added one print with a notify name. And if you add this to notify begin and you're using this montage play, you can actually see the name of the notify. So let's do that. So if you compose your strategy and you can see it says apply damage. So we have that trigger into our, inside our task attack. So we need in this trigger to make everything happen for tracks you, the character is being hit and to apply damage. So let's do that first we need our zombie. Let's click Edit zombie. And let's add a box in front of him. So there's a few ways that you could do this. You could create like some collision with his hand or maybe create a small sphere in front of the ray cast. But what I'm going to do is simply be effective. So let's click Add. And let's find a boxcar even. Now I'm simply going to create a box in front of zombie. And if the character is colliding with this box at the point when we trigger the notify, then the character will take damage. So let's do that so we can increase this. So maybe something like that. We can also change this to animation asset and then set it to attack. If we want to see the range of the hand. So maybe make the range of bit bigger. Something like that seems nice. Let's also look from here. We can even maybe do something like this, increase the box size and then move it a bit to the left. So for the player, it might be a better idea to move from the right sense he's attacking with his right hand. So you can also create like a little gameplay mechanics. So we can leave it like this. Now let's compile, save, and let's name this box damage or even. Let's see if this is set properly for the overlap. So we only want it actually to overlap our character. We can set this to no, and let's set it to a custom. I want everything to be false, but to leave our pawn to true since our character is the pons. So this does not need to collide with everything. We can track all of this in this capsule component. If we go down, we can see that this capsule uses squishing places. So this bond. Now that we have this setup, Let's click Save. Let's go to our task attack. Let's delete this sense we inherit only one not defined. We don't even need to use the notify name. So let's go back and let's find our bp zombie and find our the image quality. Now let's type is overlapping actor. So we're going to check if this is overlapping, the player character. For this. Let's do this and then type of branch. So now for developing actor, we need another actor to compare them and see if they're the same. So let's see if we can find our character so that we are going to get blackboard value as an object. We already have the reference, so anytime horizontally. So that's going to bias the character. That means that he knows he has a target dr. So if you remember in our behavior through Blackboard, we have the target dr, which is our player. We can use that to compare it, but you can see it doesn't let us in here. There isn't, doesn't let us is that we have object reference, which is this time to go into the actual object reference victories what we're comparing. So for that we're going to type cast to actor. And let's connect it in here. Let's maybe move it a bit down so it's a bit more clear. And then we're going to use this. So let's move everything a bit forward. So we are comparing the actor that is colliding with or damaged or even if it is our player or target actor which will do the player. If that's true, something happens. Let's type print and let's actually see if we're getting the right director. So let's pull it from here. So let's just get the name of the actor. If it's true, we tracked her disease. Right now, we're not getting anything that's morbid back. Try again. And we're getting BP FPS characters. So for some reason the first time we did not get it. Maybe we are casting too much in the two smaller areas. So let's go to our zombie. And let's increase this a bit. And also maybe pull it back. In cases like this. Something like that. Let's try now. Now our character is getting hit. Now let's test if we get more away. So we don't know this is working well, but we still are not getting any damage or character. So let's delete our test. And this is fine set up for now, let's compile, save. And now we need to apply damage to our character. So we do have a reference to our character, which would be here, but we would need to do more specific cast. So instead of this Kass dr, we can actually cast to FPS character, which is very specific type of actor since we created it. We can use this to test in here. But now we have the reference to our HUD. So let's type we get HUD. And now we can apply some damage. So let's pull from here and then get killed bar. And actually, yeah, we don't need to do this. Then. Do this in the character. We can do similar things in here. So we said present on Begin Play, but we could call this set per cent when we take any damage. So let's do something different here. So we're going to first go into the character and click, right-click and then type pig damage. And let's see what we can just type damage, event, tiny damage, the vendor, any damage we can do the same thing that we did on the zombies. So let's actually move it in here where we take some damage and then we can do all the calculations in here. So maybe if you get more enemy types, we will have to set separate calculation niche one. We can just type this type of damage, apply damage. I like to add some random float in range from 15 to 25. Let's do base damage. And now we're going to do a similar thing as we did on our zombies. So we're going to go to the character and we have this damage, and we need to do the calculations in here. So one thing that we could do is create a function, but let's do it a bit differently here. Let's first get our reference to the HUD, so we have it in here. Then let's get Health Bar, then set health or set per cent. And before that we can just take from this health so we can set it in here. Damage. We can subtract this from our current health. And I can just put this in the top and then listen the bottom. So if you, let's say have 50 health will take out maybe 20, then we're going to be left with 30. So we want to set that on health. And after that we want to set our present so we can actually be really see what is happening. And present needs to be set As before, we get our max helped and our shelf. Then we just divide by Maxwell. And this way we can get the percents. Now let's test this out. Let's minimize click Play. Now we start with about 0.7 or 70 health. So he applies damage. And you can see the health is applied. And let's start to doubt humans. And it's working. 46. Automatic Fire: Now let's set our weapons to be automatic. So to do that, let's first go to our character. Let's find our node where we are actually floating. So we have this left in production primary action. Let's move this a bit down. First thing that I want to do is just set this as a function. So this is basically when we fire, we can click, right-click, Collapse the function name, namely fire a weapon. Let's put it in here and we want to some stuff to happen before. So we want to add a variable named name it the primary, excellent rest. And let's set it to Boolean, and now let's add another one. Well actually we're going to name it can fire. And then we have a third one that you need to name, fire rate. And the third one I set it to float. First thing that we're going to do is just set our climate action pressed to true and then released to false. So this is just the track if we are currently shooting. So as long as we are holding our left button, it will be pressed. And when we released, then D7 to be fired. So we can just connect this, but we also need tracking here. So let's type of branch and add that can fire. So we actually need to figure out if we can even fire absolutely going here. This can be helpful if somebody is trying to spam quickly to activate a button. So spam it faster than the fire rate. So we can track it actually in here. Now let's set, can fire to false if it's true, something like this. And then after it goes into here, we need a delay because we want things to reset. So we want this to be 0.1. Or actually we're going to set a fire to 0.1 and then we can connect in here. Well, maybe 0.2 since we have a bit heavier rapid. And now what will happen is we're going to click, left-click. It will go to fire a weapon. It was set fire to false. Then we after the delay, we want to set her can fire to throw. Then we need a branch to track if our primary action is pressed. And if it's true, we want to go in here. Now let's double-click in here. Let's organize it a bit. Let's see if the logic is correct. So when the primary action is pressed, we will fire are rapidly. If we can fire, which would be the true by default, let's put it in here. And after 0.1 seconds, we'll set the can find out the true because it is set to false in here. And then we'll check if the primary action is pressed and if it is true, we are going to fire again. So this should requests desktop. So we can see the tower fire up and is working properly. And we can have this slope that we will infinitely loop. Let me try free to spam. We should not be able to spend the weapons. So let's try that. I'm going to click as fast as I can. And I'm spamming it away faster than 0.2 seconds and it is not activating, our can fire is actually working. But now that we have this, let's organize our function a bit because it's right now a bit messy. We would have to go really close and see what everything is doing. But instead of that, we can trust our sequence. Now let's add three nodes for now. So first we can check if can fire is true. Then we can do the animation and the flash. This can be one, can of course even more segregated, even more or separate it even more where we can have this be one and then these to be some, something else. Or even 11, this node to be just one thing. So we can also do that, but for now I'm going to keep it like this. And then this one is a bit too long, but it is a bit harder to separate because we can see that from the first node we have all of these other things that are going in. One thing that we can do in here is click right-click clubs to function. We have our fire up a line trace and you'll notice that we have these variables now as output. So if you double-click in here, we can see our output returned node has these two variables and you can also manually add your own. But when we create a function, it automatically created these output nodes that there is no useful because we can use them in our inner node here so we can connect this. Now it is a bit more simplified. We see in our sleeve what is happening. Now we have one problem here that is that now these branch does not work because when we go through it, we'll just set can fire, but then it will go to then it will go to the next. Let's actually put this like this. Then it will go to then T2 and then execute everything else anyways, so to kind of go around this, what you can do is click, Right-click and type return and add return node. And what this means is that when the returned node is reached, so if can fire is false, we're going to go in here. And when this is activated, everything else will be terminated and the function will be ended right here. So we can also do that, which will work effectively like before, where false doesn't do anything but through, Let's all of these nodes execute. So let's try that now. Spam, I cannot stand. When I called, you should be able to see the spray. 47. Ammo: Our goal is not complete. We need to add some Emma tweets so we can actually stop shooting when we run out of ammo. So let's do that. First. Let's go into our Character HUD. It's actually close these two. In here. We need to add our texts. So let's say, let's take texts from here. We want to change for things which is first-time coding. Let's put this at the bottom right. And let's name it M0. Now let's play a bit with a font because I'm not really big fan of it. So let's see what we have in here. So this first city sample. And it can do maybe light. So this looks fine. Let's leave the site so 24 and let's click, click Control seen here, click on the canvas panel and then Control V. And this way we can just copy paste this. And I want them to be in line. So let's put this to minus 90. Keep it straight there, and then minus 19 here, they're in the exact same line. Now instead of amulets, type 67. Now let's see how that looks. That looks fine. We can also have this alignment in here which we want to leave as default. But if you ever need to align it to another side or in the middle, you have it in here. And this is good because if we start adding numbers, it will start adding them to the right. But you can imagine if you're adding them from right to left. When you add too much number, it will go inside our texts. So we want it from here. I sleep, maybe 255. Let's Compile Save. Now one thing that you need to do in here is that texts by default is not set those variables. So we need to click this because this is the number that you're going to be changing. Now let's click on Plus on the variables and type Emma. And we want it to be an integer. And the reason for that is that m will always be a whole number. It will ever be 0.10.5. So we always want to leave it at one number. The ammo to treat him. Now we need to add it onto our fire weapons. So let's click plus. And you want to basically subtract it when you fire our weapon. So let's get our MO. Now. We could set it, set minus and then set to one. But we can also do something that is called a decrement int. This will automatically take. If you've tried to go inside of it, inside the macro, you can see that it automatically takes out one from our MO. So these kind of just a more convenient way to take out just 1. And we want also to get our HUD, so we want to update this. Let's type. Actually we did not rename it here, so let's go back first and let's name it counts. Let's compile and save and get the M account. And then what we can do is pull from here and type setText. This way we can set our text to whatever we want and we want to use this number. You can also of course pull from MO and do it like this. But we can also just use this one since it is a bit more convenient. Now let's reorder it now, this one, let's reorder it a bit. Then some nodes are not acting exactly as I want. So this is a bit cleaner. And now we should see our m or decrementing. So that's going to the game. Now the type of food Emily's going down. Now you'll notice that it went from 55 to 29. And the reason for this is that we did not set this at the beginning of games. So we have two separate numbers. We have this 55 that will be set at the beginning of the game. And then we have the actual arm account, which is 30. So we just want to update that and we can do that in the beginning play. Let's click plus in here. And we can also, if you go back in here in the fire wrapper, we can also just copy this and go back to the graph and then paste it in here. And get our MO and connect it in here. Let's pull this back a bit. Of course we can organize this in more, maybe pull it up. This way. We can have more space for our nodes. Now, we should start with 30 and it should start falling back down. Let's test this out. Now. Let's also test because we did not add any limitation when around what goes below 0. You should see em are basically going to mind. But that is not something that we want to fix this. We can go back to our fire weapon. And before all of this happens, what we want to do is add the branch. Track. How many, how many more do we have? So if you take gamma, we can see if it's greater than 0, which would be one and more. We trigger our band range and if it's true, we execute everything. So let's try to play now. I'm still holding my left mouse button, but our MO is not going down. 48. Ammo Pickups: Algorithm works and we have ammo, but it is in the limited amounts. And we want to create a proton pickups where we can increase our ammo. Let's go to our weapon. And in here we have the same over here, the sound and 1M or mesh. So what you're going to do is let's go to our blueprints. Let's click right-click and then click new type your cups. And in here we're going to create a new blueprint that is an actor, so we will never possess it. And let's type M, BP and more. And inside this actually we're going to add few things. So first, we need sphere collision. Since we want those is to collide with our player. And I think we can leave it the size. That is fine. Let's add static mask component. Now let's name, it. Will heal. I slept Panama. Now we added some more, but it's really small, so let's increase the size to maybe ten. If you notice I click this button, that means that it will uniformly scale now x, y, and z axis. Let's decrease the size maybe to seven. I'm going to just rotate it. Now what I'm going to do is just select our MO, quote out and move. Actually, I cannot do that in here. That's the controls second row V. And let's just duplicate it three times, so it looks nicer. And we can also rotate it a bit. Now let's select all of them and set them in the middle. And I'm also going to put them a bit up so they're visually clear what is happening. There gonna be a bit above the ground. We can also take our sphere and also put it around our pickup. So now that we had the visual cue, one thing that I'm also going to do here is just set it Tanaka even so we don't want our MO to actually have an equilibrium since our colliding will be happening with our sphere. This file, let's go to sphere and let's just change a few things. First thing is we wanted to only overlap it upon. So that is just more performance, something like that. Now that you have this done, let's click on the event graph and we can delete all of this. You only want one event and that is one event begin overlap. So that would be in here. Let's click Plus. Now another actor would be character. Let's type FPS. And what you want to do is add demos. So there's few ways that we can add M0, but let's go to our character and let's create a custom function that will increase the AMA. So let's type add M0 in here. What you're going to do is something new that we haven't done in the function is, and that is either an input and we want it to be among. We wanted to be an integer. And basically what we're going to do is when we call this function, you're going to pass some amount and then we're going to add to our MO. So let's scroll down, Let's find our ammo. And we can set our M account. Let's look plus in here, connected in here. And we also want our HUD, we want to update. So it's like mammal. Let's get this set text. Now let's set it to this amount. And this way we should update it now, this is not called anywhere, so that's one thing that we need to do. This or material. So let's go to our MO. And if cost goes through, actually we don't need the branch in here. If the cost goes through. What we want to do is type at ammo and color function. Now we have this integer do need to set up something and we can use, actually we already have it named Emma mesh, so let's name it. I'm a mesh. This way we can call our new variable m. And let's set it to integer. And we can set our default value to maybe 20 bullets. Time we pick up this object, we are going to get 20 bullets. And there is one last thing that we want to do. So we don't want to play just a pass through this a million times and pick up as many as we want as he once, we want to destroy this. So I click, Right-click and type destroy. And at the end, which was destroyed the actor. So now that we have this done to actually see if this works, let's put our pickup somewhere in here. These are free floating, so we're going to put it maybe in here and then we can click End button on the keyboard and should put it on the floor. And this seems fine. So let's click Play and let's test it out. So right now we are not overlapping for some reason, so let's test it out. Let's click Edit pickup. So we have our own component begin overlap, and we can print it, see if our cost is failing. And also one more thing that I forgot to add, which is play sound to d and we need em will pick up. And you can use that as an indicator to see if we are picking up the right dimer. So let's go again. And it's picked up. It seems that we just did not set stand on it. Close enough. So let's open it up the, the print and go to Viewport and increase the size of the sphere so we can make, put it off 50. Or let's do a bit bigger 60. This way it will be hard to miss this pickup. So let's try again. I'm always increased. 49. Zombies Respond To Shooting: Let's now make our zombie Guitar group by player footing him. So let's now go to our zombie. Let's now get any damage. And we have this damage caused or variability is very useful here wherever we can, get our Blackboard. And then set the value. The value that we want to set is the object. Anyone damaged caused her to be set to the object. So damage because it is the actual actor that is damaging horizontally and that will be the player always so we can set it in here. We also need the key names, so it's neat to make literal name. And let's type target actor. And now we should change that value based on damage closer. But you need to go to the player and find where we apply the damage. We should be in the fire function and we have this damage cause it. Let's type self and get the reference to self, which we can use into damage caused her. Now every time we shoot the zombie, it will be set to our character and then we're going to basically execute basically the zombies logic. It will start to execute the attack player instead of just running around value food him. Wanting that you could do here to optimize, maybe do like a sequence and do once, not to do this only once because right now if you shoot him five times, this will be called five times. We could do all of that, but for now I think this fine. So let's click Play. Let's test it out. I'm not going to compose, but just food. And consider zombie zygote and start to blackness. 50. Health Pickup: Now let's create a pickup for the health and we're going to do the similar thing for the MO. So let's click on the blue button class. Let's look on the actor and let's name it BP. Pick up. And let's open it up. And let's add here collision. Let's name it. Pickup CO2 front, and let's add static Math. Name it, health mesh. And now what we can do is find our static mesh, which should be in here. So we can just pull it from here and set it in here. Now we can see that this is way too big. So let's put it to maybe 0.32 because 2.15 maybe. That seems nice. Let's leave it at that. Actually, we need to increase the size of our sphere radius. So let's put a 60 like we did with the other objects and maybe increase this to 0.7. We also need to disabled collisions. They probably won't even happen for this subject sense, we have this sphere where a player will collide before he even touches the object, but just in case maybe for collision with another, with another, with other objects. So let's say the zombies behind this box and your footing at the zombie and you hit in the box, something like that. So we just want to leave it at no collision. And let's also change in here too. No collision or no collision, but the punk lesion. Or actually we needed the custom so we can ignore everything except the point. Now, notice that we did a lot of similar things as for the AMA. And more advanced way to do this would probably be to create child parental relationship. So have a one general class for the pickups and then create children that inherit all of the basic stuff for the pick-up objects. And then you just swap the mattress to be helped or something like that. But for now we're going to do it like this. This is more beginner friendly way. So let's now go down and find begin overlap. Let's delete everything else. Let's do the same thing as we did before for our players. So if you remember, we started this MO functions. So let's look plus odd. We need for this to be held among. You can see that our health is flow to it on Monday integer in here. So let's change it to float. Now let's go back and let's test FPS character. And let's pipe odd health. And for the variable's name it help. Let's change it to float. For default, you can see it running. Let's get this from here and put it in here. And of course you want to destroy this actor. Now in here, we need to increase our health. So first thing that we need to do is get our health, set it to our health plus D, health amount plus auditing here and connect it here. We added this in lights now call our HUD, let's call it helped bar. We can also pull from here and set per cent. For this. Of course we have our maximum and let's put it like this. So we have our health and our normal health. Let's divide. We have it set up now let's see if this actually works. Let's go back, find our blueprints, pickups, and pull her hair out into the scene. And also what we want to do is just move this above the ground. Now we can see that our health mf is actually trial or attached to our health pickup collision. So when you move health pickup equivalent everything moves. So you can do this. Let's compile, save our scene. It is a bit above the ground. So let's click Play. Now we get 70 health. So if we go to 90 when you pick it up and we do. Now we want, maybe you might have one problem here, which is that we can go above max health. So if you'd pick up this and pick up this, We are actually above our maximum health. Now let's see if you can see that we should be able to see it in here. We actually did not expose it, so it's actually expose the d variables. So let's go back to our character. Let's find our health, which is not 70. And let's set data instance, instance editable. Let's compile, save. And that basically means that in our level we should be able to see it. Or when we have an instance in the level, we should be able to see our health. So let's see, we can see our health here, 70. Now let's go back. Basically this button that touches you from the character so you can actually move around like you're in the editor and click on stuff. So let's now select both of these cups. Let's go out. Click on the character. And you can see that we have a 110 health, which is not something that we want because our Maxwell should be a 100. Sought to change this. Let's go back to our character. What we want to do to change that is basically clamped this, so we never have anything saved that is above 100 or whatever or max health is. So let's type climb. And climb basically limits whatever input we have in here that you limit it between two numbers. Even if he had the value of a 1000 and it will always set it to 01. But you can change the minimum and maximum. We do want to change that. So max, what we want always to be, whatever this maxes. So on my cell is 100, so it will clamp it to 100 always. So let's compile, save. Now let's test it out again. So let's click Play. Now when you pick up both of them, we should have 110 if he did not clamp it, but let's see if we did. We did so now we have a 100. Always. 51. Chapter 06 Introduction: So this is our last section where we're going to work with the Game Mode and basically the rules for our game. So as you can see, that it's bunch of things that you now have on the screen, which is time remaining and then zombies remaining, n In the beginning. We also had our bottom-up timer and we were frozen for that time where while we wait for the game to start. We also have some states that trench to zombies remaining will go down as I kill the zombies. And I, if I killed all the zombies, I win the game. And there is also other conditions that can happen. So don't be scared me, I will lose the game. Or if my timer at the top-right goes down, I will also lose the game. So this is how the two are going to be doing this last section. We're going to set up those states and also work with our timer. So our time is properly shown, also zombies remaining and how to place them correctly in the screens for different aspect ratios and stuff like that. So this is going to be probably the most important part of the course where we are going to put everything together and actually add the rules where player has some risky she can win if you can lose. And we add some difficulty to our game. 52. Zombies Remaining: So now let's update our zombies remaining variable in our HUD. So, but the thing that I'm going to do is just take our zombie and duplicate him. Let's also move it like this. So you have to zombies roaming around. The next thing that I'm going to do is going to gain what HUD. And in here that makes it out to this. We have our zombies remaining and you have this text. So first let's change name to zone B is next. Let's set it to variables so we can actually change it. And I'm going to set it to 0 and we should see three after we updated. So first thing that you're going to do is just create this to be a variable so we have access to later. Now let's connect it in here. And now what you want to do is basically Update, get to how many zombies behave in the level and then update this number. One. Convenient know that you have your skull to get actors of class. And then we can type zombie and find our bp zombie. And in here you're going to get an array which is basically a list of all of the actors that you have in the scene of this extra class. And what we want is actually just the length and not the actual projects. So you just want the length. And after that, you can now update our game mode HUD, which we can reference in here. Let's get zombie comes text. And then we can do set text and set the text in here. Something like this. Now let's test this out. If this works, we can also just remove the number from here, set to nothing so it doesn't distract us to play. And we can see it says numbers remaining three. Now, if I go and kill a zombie, we can see that our number is not updating. So what we want to do in there is basically create a function inside our game mode. When somebody dies that we basically take out a number of zombies. So first we need a variable called zombie count. Now let's put the dots to be an integer. And let's set it in here. Like this. Maybe make it a bit cleaner, we can do it like this. The next thing that we're going to make is a function, so we can name it. Zombie died. And when somebody dies, we want to get her zombie count type decrements. So he's basically take out one from this number. And we also want to update our code. So let's pull from the hood zombie text setText. And we want to set this to whatever the new numbers so you can do it like this. Maybe even move it a bit more space. Now, this zombie died. Function is not activated anywhere, so we need to take care of that. So let's click on one of the zombies. I think the best way to call this is when the zombie afraid ice. So we can find our explored where we destroy an actor. In here, Let's get Game Mode so that you can do is get general game with clients. But then we have to cast our game mode, HUD, or just FPS game mode. And in here we need to find our neutron count or zombie diet function. We can call this a and then everything else should trigger test. So it does not seem like it reset it after he explodes. So let's I'll change that. So the problem here is that the reset it after the 5 second delay. So let's put it before. So when the zombie started dying, basically, we're going to take this and then find the zombie dice. And you can see in here that you have this exploded, this after the delay. So let's pull that all the way back and then paste our nodes like this. Now we're going to update the number of zombies. When zombie plays the death animation. And it's activated. Now let's try another. Now let's start to kill the last one. We still have done boards. And we have zeros is remaining. 53. Session States: Now that we have the time remaining and zombies remaining, there is different ways to win or lose the game. So we also need to add those options. So one thing that could, that could happen is that you can lose by dying, or you can lose by running out of time, or you can even by killing all the zombies. So what you're going to do is basically create an enum. So if you go to right-click and then go to blueprints, click enumeration. Now let's name it. Stephan state. And enums are used usually for basically choosing different choices instead of using integers. So they are kind of like numbers but named. So we can basically nailed them something. So first we want to be in the warm up state. So this is how the game starts. So you started seeing the volume upstate. You go from three to one and then the game actually starts. Then we have, our game is in progress. That is another state. Basically you're playing the game and trying to win it. And then you have some conditions. Then the third state that could be is out of time. Which is basically if you run out of time, you go into this state, then we have player died. Last one will be Player one. So these are the different ways that you can finish the game, or at least the three last one. So those first two is just a game setup. And then again in progress, you are killing zombies basically. And now let's go to our game mode and see how we can implement this. So one thing that we can do is let's do a fantastic severe just going to do the basic setup for this. So if you type switch and then type session state, you can see that we are producing our enamine here. And this is really useful know that lets you them the anime, so different states and what you want to trigger when something happens. And you can see by default it is set to warm up. So let's create another variable, I name it safe and stay in here. We can change this to our enum. And I'll take care of this session state that can connect it in here. And we still have these five states. And if you've ever tried to print this, and let's type warmup, should be able to see the volume of prints. So let's try it. And you can see there's a verbal pain that is because that is the only node that is right now activating. So now that we have that, let's go to our, that's actually caused a zombie. Now let's create our trigger for our three-to-one countdown. Let's put this to maybe three right now. So you have something. Then what I want to do is call a function in here. It's called a function. Hi, I'm Michael timer. In here. Let's get our game mode reference. And bossing the heart. Let's rename this so we can name this text. And we also need to make it to variables so we can see it. Now let's get down text type setText. For now, let's just put it to 0 to see if this works. Oh yeah, we also need to call the functions. So let's go back. So you have to fight for it, but I did not call it. So let's go to Event. Let's do this. We have our warm-up timer. Now let's see if it works now. Now we can see that it works because it changed three to 0. 54. Warmup State: Now that we have our sovereign state setup created, Let's add some details in here. So first we need to set some text in here. So since this is called a on every tick, what we can do is get gain. In seconds. This is gonna give us trend log n time when the game starts. Let's also type out the variable warm-up time. And let's set this to a float. This way we can set, let's say, three seconds as we did before. Now let's put from here. What we can do is get our time and then take it from our warm-up time. So let's test this out if this works. So it goes from minus. So let's try it again. I think we need dislike this. And it goes from three and then it will go to 0. So that is good. Now let's go back to our game mode. Now let me move this. And now that we have this, Let's test the other branch in here. Set this in here. And what you want is to round up these numbers. So let's type this and then connect it in here. We can do this to tax, since we are changing it to integer. Now what it should happen is that it goes with round numbers. So we have 3210. Now of course it's going to go into minus three. We're going to change that now. Let's go in here. So what you're going to do is basically tracking here. If it's equal or greater or less than 0. Then in here we're just going to set the text to nothing. So we get empty, basically empty numbers so we don't have anything. Let's test it out. We can see our countdown is done. Now what we want to set it to happen while it's doing the countdown is to disable everything we want. We want to disable our character. So let's get player pawn. And from here let's type disabled input. And let's solve so yes to FPS character. So whatever I also want to do is set our primary weapon pressed to be false. And you are going to change this of course later. So let's test this out. We should not be able to move or fruit. In the beginning, I'm clicking things and I cannot move or fruit. That's good. And now we need to enable this later. So we want to enable this when our game starts, so it will pass type game, so we need a function start game. And in here let's type the Get Player Pawn. And from here let's type in enable input. What actually we also need to cast again. Now let's enable input. We can also get the player controller. So let's get player controller. And you're going to get again of the Planet Index zeros. That basically means that for a single pair of games, that will always mean the player. But for multiplayer games, you have to get off for local co-op games, you have to get more specific, but this is fine for single-player games. And then we can connect it in here. And we also want our parameter action pressed to be set to true. And we can ask, is connected to here like this. Let's set this to true. Now we need our start game to be called in the volume of timers. So we have this function that is triggered when we are, when we, when the countdown is basically done. So let's compile save. Actually first we need to delete this primer action press because you actually don't need that. That's our input is disabled. So let's click Play. Let's test it out. So I'm clicking and I cannot more fruit, but when it's done, we can now move and fruit and we have the basic state for a warm-up done. 55. In Progress: Now that we have our Varma, let's go to our in-progress state. So one thing that we need to do is go to our time remaining. So we didn't need to change this if we want to start in progress states. So we basically want to set that up so we have some time that starts counting down when we start the game. So let's first go into our warm-up timer. We have our start game where we have our enable input. And let's also in here set our state in progress. This way. Let's close this. This way. On next week we're going to go to our in-progress state and our inner progress. If instead let's do plus update timer. Let's call it update countdown timer. And let's get our HUD. Or we named it time remaining texts. So as to that, we also need to enable it to some variable. So he kept it visible. Let's type get good time remaining. Now let's do set text. Now what we're going to do for this is we need another variable and let's type bound to Dawn time. Now let's set this to float. Let's service to 64. Now, what you want to do is basically amplitude or Delta diamond, that the time is basically an inch thick. It will be divided by some value. So in each second you have exactly the second pass is after all of your frames. So if I could plug in here and type delta time, we have this input for the function. Let's set it to float. Now if you've got our Event Graph and color object countdown timer, we can see that we have this delta time and you can connect it in here. And then we have our count on time. Anyone to subtract this from our count on time? So we have the new time in the new time we want to set in here. And actually we want this opposite. So we want this taken out from here. Then we can set this time and then as our setText. So I saw that you have the conversion. Let's see if this works. Let's wait three seconds. We have our count on time. And it's not going to be the same as this where you have the decimal, decimal numbers and stuff like that. So we're going to change that, but for now, let's just set it up properly in here so we have the time. Now let's have a branch that tracks the time. If it's less or equal to 0. And then we want to set this to 0000. So if you go like this and it can increase the size of the window, make it easier connected in here. Let's put the test so text to 0000. Now later we're going to format it properly, but for now let's do this. Let's put our Condon time to five seconds so we can actually see it faster so you don't have to wait for a minute. Let's click Play. Timer is going down and it's set to 0. That's good. The next thing that we want to do is when we're in here. We also want Get Player, Pawn. Let's type disabled input. Basically want to disable the input of the player when we go in here. Now let's also cast to FPS character. Now let's take pressed. So you don't want this to go on here. So we're going to disable this. Let's test it out. The game has started and everything stopped. And this is basically the action that we want. And after that, we also want for our game state of change so you can actually put it before, so we don't never do something if this fails. So let's do state. And actually we can maybe do this later is cell depends on what happened. Or actually we can do it like this. Then we want out of time. And we of course have the other player died and play around. And we're going to call that in different circumstances. So if the time comes goes out, we go to Saffron out of time, sovereign state out of time. 56. Time Format: Now let's clean this up a bit since we are going to go over and format or texts. So before we do that, we do that. Let's select this copy paste and connected in here so you have it a bit cleaner. And what I want to do is create a new function. So I select all this in, I name it out of time. This is all the things that happened when we go out of time. Okay, that is fine. Now, the next thing that I want to do is to format the text so we don't want to just give this number. You may get new function, name it on text. In here. The first thing that we're going to do is get our count on time. Then we need to get the mean. It's so to get to minutes, Let's divide this by 60. Since this is just our seconds and then this is the minutes. Then let's floor this floor it. Because Florida is selecting the lower value. And you have the ceiling B, which is the upper value. So we went to Florida and after that we want to convert it to text. But let's first type format text. You want to get. We need this text form. So what we want to do basically is to format our texts. We have 00 or number of minutes and then my number of seconds and then colon in between. So we just form a text node. What we can do is write in here something like this. Let's type minutes. And then seconds. Something like this. That's the canter. And when we click Enter, we can see that we get these two values where we can put minutes and seconds in. So let's do that. When you put this in, we get attributed to first convert it to text. Let's do integer. Then we need to get the seconds. So to get the seconds, what we're going to do is from here multiplied by 60. So whatever minutes we have, we multiply it by 60. How much seconds to take out. And then we get our count on time, and then we take out the seconds. So what happens in here is basically if you, let's say have 65 seconds, we're going to hear this will value will be one. And when we multiply one by 60, we get 6065 minus 60, which is five seconds. So those five seconds we will go over to the seconds. So that's kinda the idea. Now let's go to text and then connect it in here. And we need to connect it somewhere. And for that we need to return node. So let's click on here, plus. Now let's take the name. Or actually we'll need the text. Let's name it format time. And now we can connect this in here. Now, we don t want all those zeros and ones. So what we want to do is set to inhere. So we always have two numbers. And then we want to set this to 0. Also, we want to do it in here. So let's increase this. Soil wants to end to end here. Display we forget correct formatting. Now let's go to to here and let's delete this. Now what we want to do is get our format text. And another thing that we want to do is let's go back to form a text. And we can make it pure. And when we set it to be pure, that basically means that we just have this output instead of having to connect the execution pins, we can just give the output because you don't have to. We just need to get some value out of this function. It just needs to process something. You don't have to give it an input, so we don't have to create it as an execution. Now let's compile and save and see how it looks. So let's click Play. So here are our time and you can see that the timer is going down. When it goes to 0, we cannot move anymore. Now, before we continue, what we need to do is let me see. So we need to test if we set the higher values. So let's do 75 seconds. And let's see if our formatting worked correctly. And it says 115, which is exactly how much time we have or we added. And let's see how it will fall when it goes below one. And it goes to 1659. So that is all fine. Now, let's close this up and this can actually cause all of these. Now that we have that, let's also add something on this event begin play. Right now it is a bit messy, so we could also clean this up. But yeah, that's actually clean this up before we do anything. So the sequence, let's connect it in here. So we can just connect this. Then move this down. Let's pull up this to function and let's name it. It. Game Mode, HUD. So it is a bit more understandable. Now let's create something like that. And this way it is way more cleaner. And these are kind of setups that we need to trigger in the beginning of the game. So let's also do something in here. So let's set format text. Let's get our game mode reference. Now let's do the time remaining texts. I also want to set the text in here, so it says right away how much time we have left. And instead of saying 00. So let's explain, test it out. And you can see it says 115 and it should start counting down after a time. It goes way. That makes it a bit cleaner. Now another thing that I wanted to do is to basically add some announcements when we start the game. So if I go to my game mode, Let's create texts. Stay this text block, set it in the middle here. Let's set 0.50 to 500 in here, maybe too much 200. That is good. We need this in the middle. Let's say this. Then we need to size to be bigger. So maybe something like this. We can also size the content. Let's see if we have anything better in here. Maybe irregular. And now that we have this, let's put it in the beginning play when we start the game. We can also edit this name it, announcement text. And then in here we can pull from HUD announcement text and then setText. And we can set something like heel out, something like this. Let's compile, save, and let's see if this works. So in the game status we have this, but of course we want that to move after warm-up time is gone. So what you can do is write out a form of time is set. We can maybe go into the start game and then in here we can get our game mode announcement text, then setText, and we're going to set it. Nothing. So it basically goes away. While we're here. Let's also go into our update countdown timer. And when we're out of time, we also want to set our announcement too out of time. Let's test the sound by changing our count on time, maybe five seconds, so you don't have to wait too long for the testing. We can't kill all the zombies. It should go away and then we should get it after few seconds. Out of time. 57. Player Won: So we added two ways for the player to lose, but we did not give player an option to win. So let's add that. Let's go into the game mode again. And in here where zombie dies, we take out 1 from the zombie count. So that's also another branch here to see if it's if the zombie count is less or equal to 0, so i, so that it fits less than or equal to 0. We want something to happen and let's create a new function called player one. And for this function, what you want to happen is first we want to do disabled inputs. We can type. Or actually let's get Player Pawn disabled input. Let's also cast to FPS character and setbacks and press the false. Want this to happen. But that's not all. When we also wanted to get out or not at all set out announcements. So let's gapped announcement, setText and then we can do something like this. And that should be fine for now. So now that we have this, let's exit out a few of these functions. Let's go back to zombie died, and let's set the player one in here. Now if you play. And I forgot to set up the time, so now we have told little time. So let's set this to maybe 60 seconds. We have more time to kill zombies. Were killed one order and then the last one. And it says you want and I'm out of the mold. So there is one thing that could happen is that if we lose our health, Still nothing happens. So let's do that. If we tried to do zombies, get his attention. And then it made him she does few times. We can see that nothing happened there. So this will be, now let's find the last zombie. Okay, he's in here. You can see that we still got the U1 ending even if we, even if we can knock out. So let's add that. We are going to add that in the player won. So let's test first our player's health so we can move this in here branch. And if you type help, Health is less or equal to 0, then we don't want anything to happen. But if it's not, if it's greater than 0, we want this to happen. This way. We have the ending where even if for some reason I held it goes to 0, it will never be able to. We trust that. The last thing that we need to do in here is to set our seven state to player one. And this way we unwrapped state where we can trigger all sorts of other things when player wins. 58. Player Died: Now the last thing that we need to add is the player lost conditions. So we can type or Player Die condition. So let's create the function name it. Player died. Here we, of course first one, our disabled input from our player. So let's copy that from here. Let's paste it in here. Okay, We can do it like this. Preston disabled. And there's more things that you want to happen when you die. And that is changing our announcement, of course, so we can set it to setText to you died. Then I'm going to also add something in beginning here. So if you have a sovereign state, let's set it to player died. This fit. Something else does not update. So next time that we need to change this time remaining texts, Let's set the text there. We want to set it to 0000 so we don't have any specific time in there. Next thing, we need our players, so let's go back. Now it's got two characters, FPS character in here. When we are damaged, we want to basically track them if we have less than 0 health or we have yeah, let's do 00 health event to take any damage. Which other branch? This is the most appropriate place to track this. Now let's get our health. Now let's check if it's less or equal to 0. If that is true, we can do that again mode. And you can cast to our game or the treaty or FPS game mode. From here we can find our died function. That should be fine. Let's go back here. Let's see if we have everything set up. I've started smoothing, we have announcements set and that should be fine. So let's now test this out. Let's see chef few zombies in the center. So I'm going to click Play and try to run towards the zombie and tried to kill me. You can also get the help from the zombie. And now we are dead and I cannot move in. Our time is set to 0. And now the last thing that we're going to do here is let's go back to our FPS game mode. What I want to set is that when we realize that ten seconds, Let's say we want our timer to become red. And to do this, let's go to our event graph. And we basically need our update countdown timer. Here we have this tract for 0. But what you can do is also track setup branch before if it's ten or less seconds. So let's do that. So we are going to copy this Connect Sets the less than or equal to ten. And now in-between, we can put texts, though it's fine time remaining setText. And this will work every time because this branch will always be true if it's less than ten. So we can put it in here after this branch. Let's connect this and let's actually, we don't need to set text, but what you need is set color, set color, and opacity. Let's connect to this. Now let's split this struct here. We're going to take this symbol we bought back or down. And we can put the red in here, so 12, right, and then everything 0. Let's click. Okay. Now let's see if this works. I'm also going to change our account on time to something lower. So we can actually see this. And we can see our time. It is now red. 59. Finishing The Game: So now that we have all of our pieces setting in the level of, let's actually boss it out. So let's put some busy in the, in the level. Let's add some pickups and stuff like that. So first thing that we're going to do is let's go to our game mode and let's change the time. So let's give us maybe 80 seconds to finish them up. Now let's compile, save. Let's close this up. Now that I look at the level, it seems like it might be a bit too big. So let's limit to the area. So I'm going to take this ball and I'm going to pull it all the way here. Something like that. And I'm going to duplicate the wall and let's put it in here. Let's rotate it smoothly. These tools could go a bit forward. Something like that looks fine. That looks good, and maybe that while it's fine. So now we have a very smaller area to play in. So we don't have to spend lots of time searching front of zombies. And the next thing that I want to do is maybe make these, these pickups with more interesting right now, they're just stay familiar standing there. And also maybe these pickups need to be a bit up. So let's open the viewport. I want to make them a bit more floated, something like that. What I also want to do is basically rotate R components. So let's click Add. Let's type scene surrounding sink component because it is basically like a single point. So we went to the single mono basic hasn't been as foreign, which lets you move things around seven to touch everything to that scene. Soviet don't rotate everything individually. And actually we can type rotating component and this foot rotate everything. So let's set the rotation rate, let's say 50, which will rotate 50 degrees in a second. So let's compile and say, oh, let's see how it looks. You can see now our pickup is rotating. The pickup still works. Okay, That's good. The next thing let's do the similar thing for our health. Let's find, let's find our meshes, health pickup. And actually we want blueprints, pickups. And in here Let's go to our health and maybe also move this a bit for a bit up. And then we need the rotating component and set this to 50 hours. So let's compile save, and let's see how that looks. That looks pretty good to me. So let's exit out. Now going to spread them around a bit. So let's first split out the zombies. I'm going to select two of them. Let's put them like this. They can patrol there. We can also select these two. I'm holding out, so basically duplicate them so we can do something like this. Maybe spread them out a bit. I'm trying to not put one too close to the player, so he attacks the player when the game starts. So maybe something like this. And maybe this area can be a bit more hard so we can put zombies together and we can leave it like that. Now let's take our pickups. So we have our MO, or let's write it out a bit. So maybe in here, maybe if you manage to kill the zombies, maybe you get some rewards here. Let's put some in this corner. Maybe one here, and let's do one other here. Something like that should be fine. Then we have our health pickups. Second, when only one there. Then I'm going to put it in here. Here. If you fight these crowdsourcing is, let's put maybe two in here. And then one in here. I'm going to put this one in middle of the street and maybe wanting here. And that should also be fine. So now that we have it spread out and said, Let's test it out. So we have, I think Katie seconds to clear all the zombies. That's good play. Let's try. So first, we're gonna go in here. Maybe pick up the MO. We have some ammo here. I think. Obviously not pick up. Nice. Maybe we also need some cool, even the AMA to be a bit bigger. It's still seems a bit hard to pick up. But we see a lot of zombies are roaming around here. We can see our navigation lead to zombies to go into this force, we can also decrease the size of navigation. So they never tried to go above the wall. And I'm a bit low on AMA, so let's go here. We still have 690. So we can see here we have this problem we can navigate from. And I'm out of time. There is few things that we could optimize. First thing would be the navigation. So let's type Nav mesh. And let's see the size of it. Okay, it's this one. So I will decrease this, something like this. Then we can ask the case this. You can move it like this. So you basically never want to zombies to go outside of this area. And also these walls, I don't think have a collider. So let's open that up. Box simplified collisions. So this should be fine. Now, Let's try to, let's actually try to increase this since we increase the set-up box coefficient on our walls. Now let's go to tools are actually always got to build and then build geometry. This should help us with the size of the world or with navigation. Not sure if I did not update. Let's do this again. Should be fine. Let's test it out. See if the zombies still go inside here. So I got stuck there. Okay, It seems like zombies are not interested in this part anymore. It seems like our coefficients are taking them out of ammo. Let's go here. We still have some problems. Garcia. I was careful to pick the Navigation more. But now it seems to work fine. Of course, it seems like the Amaris, the biggest issue right now. But you can see that game is running fine and you have a five-minute timer, pickups and zombies, and that's the most thing that you use to adjust the game. Okay, Now just be shared with the game. To package these build, what you would, what you would do is if you have multiple levels, we can go into a project settings and let's type. Then there should be a name of the levels. So here this list of maps including the levels. So we have our small city level and we also have our default map that we need to set. So it's got two maps and modes. And it gave me a default map and it needs to be our maps. So it's named a custom app. So let's go here. Type customer, the customer. This way when the game starts, when you build it to go directly into this map. Now we saw that when I typed package that we have these big city level. So let's remove that. And let's add in. Here are maps. We can click these three buttons and then we can go into our FPS game. The custom app. This way, when this package Build is built, it will include our map. Since we have only one map, we can delete the other maps and live on this. But if you have multiple maps, you'll need to put it in here. Now we don't even need to put our customer, because any map that is setting as a game default map, it will automatically be loaded. But just in case let's put it there. Now what you need to do is just click platforms, then go to Windows. And then if you have the package projects. 60. Final Polishing - Course End: Hello everybody to this bonus video. In this bonus video, I improved a little bit more our zombie shooting FPS prototype. And let me show you how it looks. I'm going to start again. I've placed some zombies. I changed a little bit the hit of zombies. And I've created a hoarder here, which you can shoot. I've changed also the muscle car. You can show the court each zombie has a different speed with a random value. And let me just collect all the hordes. The idea is to kill all the 34 zombies before they each year. And this is how you can improve the game. And of course, this is just a little glass in what you can achieve by creating zombie shooter game. I've showed you everything that you need to do in order to have all the basics. And from now on you can build up, you can add different varieties of zombies. You can add different speeds to the zombies. You can add different effects. Of course, the different levels you can make the zombies to climb on some objects, etc. Pretty much everything that you need to set up. Right now, my MO is out, so I need to refill. And as you can see, pretty easily created a horde of zombies, which I can shoot up. Pretty nice. Ends the game gets too intensive. But pretty much discourse was an introduction of how can you achieve this zombie survival FPS. And of course, you can build up everything you want. From here. I highly encourage you to level up this course and make more advanced zombies. But the most important thing is that you now have the basic idea of how to create everything. From now on, you can just improve your zombie game. Thank you guys for enrolling in this course. Let me know in the reviews what you want to improve, what was difficult for you. And did you enjoy the course? Thank you, and I see you in my next course.