Please post your entire code
the one above is my entire code but i changed my mouseClicked function to showWhoseTurnAnd_AI_Manager()
Ar start of mouseClicked say
if (player==‘X’)
return;
I am afraid you need both functions
One is to handle the Human input
One to call moveAI
PImage background; // image for background
char player='0'; // this tells us whose turn it is during the game
char playerAI='X';
int score=0; // the score
//Program screens
final int mainMenu = 0;//defines mainMenu
final int game = 1;//defines game
int state = mainMenu;//sets mainmenu as first screen player sees
int[]x=
{
110, 300, 490,
110, 300, 490,
110, 300, 490
};
int[]y=
{
150, 150, 150,
300, 300, 300,
450, 450, 450
};
char[] clicked =
{
' ', ' ', ' ',
' ', ' ', ' ',
' ', ' ', ' '
};
void setup() {
size(600, 600);//sets screen size
background=loadImage("yo.jpg");//sets picture for background
strokeWeight(6);//sets the width of the stroke
}
void draw() {
switch(state) {//this functions switches the state of the program
case mainMenu:
runMenu();//sets the screen for the main menu
break;
case game:
runGame();//sets the screen for the game
break;
}
}
void runMenu() {
if (background==null)//sets the condition for which the background changes
background(255); //sets background to white
else
background(background);//sets background to image
fill(0); // black text
textSize(32);//sets text size
text("X and O game", 100, 100);//displays X and O game
textSize(21);//sets text size
text("Press 'a' to begin the game", 150, 180);//displays press a to begin the game
if (key=='a') {//states what happens if a key is pressed
background(110);//sets background colour
state=game;//takes player to game
}
}
void runGame() {
textSize(32);//sets text size
fill(0, 102, 153);//determines text colour
text("X and 0 game", 210, 40);//displays x and o game
// draw grid
stroke(0);//sets the colour of the lines to black
line(200, 100, 200, 500);//creates the first vertical line
line(400, 100, 400, 500);//creates the second vertical line
line(100, 100+400/3, 500, 100+400/3);//draws the first horizontal line
line(100, 250+400/3, 500, 250+400/3);//draws the second horizontal lin
if (player=='X') { //states what happens when its player x's turn
deleteFooter();
fill(0, 102, 153);//sets text colour
textSize(32);//sets text size
text("It’s X’s turn", 100, 550);//displays its x turn
} else {//states what happens if its not player x's turn
deleteFooter();
textSize(32);//sets text size
fill(0, 102, 153);//sets text colour
text("It’s 0’s turn", 100, 550);//displays its o's turn
}
showWhoseTurnAnd_AI_Manager();
}
void mouseClicked() {
if (state != game)//this is to make sure we are in the right state
return; // leave
if(player=='X')
return;
if (player=='X') { //sets the condition for what happens when its player x's turn
for (int i=0; i<x.length; i++) {
if (dist(mouseX, mouseY, x[i], y[i])<50) {
stroke(0, 255, 0); //sets the color for the letter X to green
line(x[i]+50, y[i]-50, x[i]-50, y[i]+50);//draws the first line of the letter X
line(x[i]-50, y[i]-50, x[i] +50, y[i] +50);//draws the second line of the letter X
moveAI();
}
}
player='0';//this statement states that its 0's turn now
} else {
for (int i=0; i<x.length; i++) {
if (dist(mouseX, mouseY, x[i], y[i])<50) {
stroke(255, 0, 0);//changes the colour of the circle to red
noFill();//this gives the ellipse just the outline and makes it hollow
ellipse(x[i], y[i], 100, 100);//draws a circle
}
}
player='X';//this statement states that its X's turn now
}
}
void deleteFooter() {
// make a rect to delete the old text "It’s 0’s turn"/"It’s X’s turn"
fill(110);//fills rectangle
noStroke(); //no stroke
rect(0, 520, width, 200);//draws a rectangle
}
// AI player 0
// A stupid AI plays a random move on an empty field/cell
void moveAI() {
// make a list of empty cells on the board
IntList possibleMoves=new IntList();
for (int i = 0; i<clicked.length; i++) {
if (clicked[i] == ' ') {
possibleMoves.append(i);
}//if
}//for
// Shuffle the list
possibleMoves.shuffle();
// Success
// Make the move. Since we shuffled the list, we can always take possible move #0 from the list
clicked[possibleMoves.get(0)]=playerAI; // make / record move
player='0'; // change turn
}//func
//
void showWhoseTurnAnd_AI_Manager() {
if (player=='X') {
// display message
println("AI thinks");
fill(0, 255, 0);
text("AI thinks", 33, height-33);
moveAI(); // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! AI places X here !
} else {
// display message
fill(0);
text("Your move, Player O.", 33, height-33);
}
}
I tried but ai doesn’t play anything
a few errors:
player='0';
must be X
Also, remember to store Human’s move into clicked as well:
clicked[i]='0';
Otherwise the AI could make a move on a cell that is already occupied by ‘0’.
Remark 1
But the AI is only to demonstrate how to combine Human player with AI player.
It is only a random “AI”. It figures out which cells of the board are empty and chooses one of the cells randomly (using shuffle) to make the move.
For a smart AI you need a strategy.
For example the AI must see when it can make a move to win.
This means,
- when it finds a line with two X’s, it must make a move in the same line on the empty field to WIN.
- when it finds a line with two 0’s, it must make a move in the same line on the empty field to hinder the Human to win.
- When he finds an empty cell where two lines cross and both lines have one X and two empty cells, then must take this empty cell to make a fork.
A line here is either horizontal, vertical or diagonal line of three cells where a player can win.
These rules can be achieved by count scores for each cell and then make the AI move on the highest scoring cell. That’s what JoseMY discussed above.
Remark 2
You need a detector for Win and for Draw/Tie.
I hope you get a full understanding of the Sketch.
My apologies that this is so hard.
Have a happy new year!
Warm regards,
Chrisir
Hi, Chrisr!
I’m glad to see you finally made it!
I hope you found useful some of my hints, though it seems you finally went your own way.
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I made a 3D Tic tac toe now with an AI based on your rules
I also made a random player and the AI played the random player overnight with 156000 games. It didn’t loose one game.
(now >260.000 games but I don’t think that automatically means, the AI plays perfect)
Great!! I like how you tested the optimal values!
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