Hi all,

this post concerns the course:

Complete ARCore & ARKit Gaming Developer - Creating Multiplayer Games in Augmented Reality

The ARInterface is now deprecated and has been superseded by the ARFoundation.
However if you want to use the old ARInterface you are free to do this. The Github repo isn't longer maintained but it is still working.

The basic structure of the new ARFoundation is similar to the ARInterface. But nevertheless there are some differences:

1. Unity uploaded a new Sample Project for the ARFoundation
You can find this under: https://github.com/Unity-Technologies/arfoundation-samples
Please download this project and import it in a new Unity project.

2. Installation of ARFoundation, ARKit or ARCore
In Unity go to Window -> Package Manager. Under the tab "ALL" you need to install the "AR Foundation" and the "ARKit XR Plugin" for IOS or the "ARCore XR Plugin" for Android.

(If you can't see these packages, then please allow under the tab "Advanced" -> "Show preview packages.)

3. Install in the Package Manger under "All" -> "Build in Packages" the "XR Package"

4. Activate under File -> Build Settings -> Player Settings “Allow unsafe Code” , otherwise you will receive an error message

5. Open under the folder arfoundation-samples-master -> Assets -> Scenes the SimpleAR Scene
(This is exact the same like the ARInterface basic scene. In this scene are all the basic features like place on Plane, etc.)

In order to transfer this new SimpleAR Scene to your mobile device, you need to do exact the same like in the videos "Transference of the Example Scene to our Phone"

(Don't forget to set a string under BuildSettings->PlayerSettings-> Camera Usage Description) and just click "Yes, fix and build" if you get the message "Unity.XR.ARKit will be stripped".

More informations about the ARFoundation you can find in this documentation:
https://docs.unity3d.com/Packages/com.unity.xr.arfoundation@1.0/manual/index.html

Changes for the Multiplayer AR Game:

1. Instead the SimpleARScene you need to open the SampleScene from the ARFoundation Asset.
samples-master -> Assets -> Scenes -> SampleScene

2. Copy the 3 GameObjects: “Directional Light “, “ARSession” und “AR Session Origion”

3. Paste them into the Multiplayer Tank Scene

4. Set the GameObject Environment under AR Session Origin on the "Place on Plane" Script

-> Create a new Prefab of the Environment
-> Drag & Drop the Environment into the Assets Folder
-> Delete the Environment from the Scene
-> Drag & Drop the new Prefab on the "Place on Plane" Script

(Don't forget to add the "Photon View" Component on the Environment GameObject)

(5. The build in Place On Plane functionality in the editor isn't longer supported in the new ARFoundation)

6. Under AR Session Origin -> AR Plane Manager set Detection Flags to "Horizontal"

7. You can find the new "placeMapScript" under "Your project"

The names of the scripts have changed:

ARPlaneVisulizer is now the new script ARPlaneManager
ARPointCloudVisulizer is now the new script ARPointCloudManager

8. You must create two new tags

the new tag "arPlaneTag" for the gameObject "AR Plane Debug Visulizer"
the new tag "arPointTag" for the gameObject "AR Point Cloud Debug Visulizer"

9. New NetworkManager Script
I added you the new "NetworkManagerScript" under "Your project". Please add to the GameObjects SpawnPoint1 & SpawnPoint2 the tags "sp1" & "sp2".

10. Modifications for the tank
- Disable under the Rigidbody "Use Gravity"
- Freeze the Y position & rotation under Rigidbody -> Constraints

Sebastian Armand

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