Transcripts
1. 01 Guessing game introduction: The dosers we want to create a guessing game,
number guessing game. So we create a secret number, and users should guess what number we are
thinking of, right? So if they put a number that is less
than that secret number, we tell them that it's
less than secret number. And if the number is bigger
than the secret number, we tell them that it
is bigger than number. And the goal is to find that secret number with less attempt possible.
Let's see how we can do.
2. 02 Create the secret number: So now for creating
or guessing game. For doing that, I want to
go to desktop in here, create a new folder, and I want to call it
guessing game, right? And with that, I
will go to VS code, go in here and open
up that folder. So in here, it is in desktop. It's called Guessing
Game head Select Folder, and it will open it for us. And in here, let's
just create a file. I want to call it
again, guessing. Game dot PY with that. Let's just zoom a little bit so you can see it
better. That's it. Now with that down,
first of all, we want to tell users what
this application is doing. So I will use a print for that, and in there, use a
double quotation. I will say, welcome to the
number guessing game, right? Now with that, I want
to use another print, and I want to tell the users
what this game is about. For example, um thinking of
a number 1-100, for example. So with that done, they know
we are thinking of a number, and they should
guess after that. But for no, this is good. Now, we need to generate
a random number 1-100. For doing that, there is a library in Python
that is called random. And I can say import random. And with that, I
can say random dot, rand, It, right? An integer 1-100. And after that open and close parenssF the minimum
and maximum, we can put one and
100. That's it. And this rand int will give
us an integer in return, and we can save it
inside a variable. This variable, I would call
it secret number, right? It's equal to this
random integer. Just with that, I want to use a print to show this
secret number first. Secret number. Of course, we don't show it
at the end game. Now with that done,
I want to go here, go to terminal and
create a new terminal. And in here, I want to say PY at tab guessing game head Inter, and no, it says, welcome to
the number guessing game. I'm thinking of a number
1-100 and right now, the secret number is 32. If you run it again, it will give us
another number 53. Again, if you run
it, it says 71. So each time that we
run our application, it will give us a secret number. We don't want to
show it like this. No, we want to tell the
user to take a guess. Let's see if we can
do that in next.
3. 03 Dont let user to put non integer value in input: No we have a secret
random number. No, the user should take a
guess, and for doing that, we should count the amount of guess that he or she
have done, right? So for doing that, I
will create a variable. I will call it attempts, it's equal to zero. And no, I want to create a wilt loop to take the
guesses of the user. So we say Wil true so this wire loop
always happen, right? Now, in here from input, we want to get
that guess, right? So in here, I will create input, and in here, I will say, take a guess, right after
that colon and a space. So it looks more better, right? And this will give us a
text or a string, right? So we can save it somewhere. I will call it guess, and guess is equal whatever that user write in
the input, right? With that first thing
that I want to check, I want to check if they put a integer value,
a number, right? So for doing that, we can say, I guess, Dot is digit, right? With this function, what it will give us
if we hover over it, it will give us a boolean. Return true if the string is a digit string false
otherwise, right? So if the is digit was true, in that case, it means the
user write a number, right? But I don't want to
do it like this. I want to check if it is false. So if the user write a
non digit text input, we check if guess that
is digit will be false. So in here, if is digit is equal to false,
what do you want to do? We want to say first
a print and say, please enter a valid number 1-100, right? And after that, we say continue. So when this continue happen, it will go to the beginning of this loop and it will tell the user to
take a guess again. Now, let's just
test that I here. Let's run. You can see it says, I'm thinking of a number 1-100. We should take a guess now
if we put 50 you can see, again, it will tell
us to take a guess, but if you put N in there
because it is not a number, if you had interno, it says, Please enter
a valid number. It will give us an error. We can just put an error
in here like this, so it will be more obvious. So in here, Control C to
get out of the application. After that, let's
just run it again. For example, 50, it's okay. It won't give us any error. But if you put N in there
because it's not a digit, it's not an integer,
if you had inter, it says error, please enter
a valid number 1-100. So now with this line of code, we are just getting some
integer value from input.
4. 04 Dont let user to get out of limit of secret number: Know what I want to
do because after this I guess is digit
is equal to false, we are sure that the
guess is a number. We need to convert it to a, for example, integer, right? So we say int, open and close parenths and
put the guess there. So this will convert the number string that user
write in input to a integer. And we can save
it inside itself. We say guess is equal
to in guess, right? So with this right now, this guess is a string, but in here, we are
changing it to an integer. Now we are working
with the integer. And with that, I want
to check something. Guess is less than one, or guess is more than 100. It means the user put a
value that is not 1-100. We tell it to please put
a number 1-100, right? In that case, we want to
tell them with a print your guess should be 1-100. After that, we want
to say continue, go back to the beginning of this y loop and
take another guess. Now, with that, let's
just test that out. If we run a code in here, it will tell us to take a guess. If we put N in there, it will give us error. And no, if we put ten, it won't give us any error, but if we put 110, it will tell us your
guess should be 1-100. And again, in here, I want to put an error in here, so it will be obvious that they did make
a mistake, right? Again, with that in
here, Control C to exit out of the application,
and again, run it. Now, if you put 110, it says, error, your
guess should be 1-100. Know with that done if we
reach this line over here and it didn't return to take a guess at the
beginning of or I loop, it means guess is an integer
value that is 1-100. And now we can check if the number is close to
secret number or not, if it is bigger or
smaller than that. Let's see what we
can do that. Next.
5. 05 Game logic: No, we want to give the user some hints if they are close
to the secret number, right? For doing that, first
thing that I want to do, I want to increase
these attempts, right? So I will say attempts is equal to attempts plus one, right? That's it. We increase
the attempts. No, we want to check I guess. Is equal to the secret number. We can tell the user,
congratulations. So in here, we can print
with a FS string, right? Congratulation. You guess the number correctly in open and close
curly brackets, attempts. You want to show how many
attempts they have done. Attempts. That's it. Now, after this,
we want to break out of the loop and finish
the execution, right? But if the guess is not
equal to the secret number, we want to check it
with Al if, right? I guess was less than
the secret number. In that case, again, I want to use another print, and I want to tell
the user too low. Try higher value, right? And if the guess is not secret number and the guess is not less than secret number, so the guess is bigger
than secret number. So in here, we can just
use se state and a colon. And in here, we can just
say print, and in here, we say two high, try, lower number, right? Just like that. Let's just
use Control C on terminal, so exit out of the application. And after that, make sure
you save and let's just run. And in here, it's saying, I'm thinking of a number 1-100. I will say 50. It says try lower number. So I will say 20. No, it says, try
lower number again. I will say ten. Again, it
says, try lower number. Let's just say five, again, four, three, and no. The secret number was three, and it says, congratulations. You guess the number
correctly in six attempts. Let's just run it one more time. I'm thinking of a number 1-100. Take a guess, again, 50, try higher, 60, again, higher. Let's just say 80, 70, 75, 77, 76. And no, the secret number
was 76, and congratulations. You guessed the number
correctly in seven attempts. That's it. Now game is ready.
Navid Ansari
