/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.ByoOXFNmV2N/rev.100
 * 
 * authors: 
 *   Eralp Karaduman

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



int[][] game;
char[] turnStr;
color[] colors;
int turnCnt;
int gameWon; // 0 nobody, 1 x, 2 y
int moves;
bool gameDraw;
PFont font;


void setup() { 
    size(300,300);
    
    font = loadFont("tahoma");
    game = new int[3][3];
    turnStr = {'X','O'};
    turnCnt = 0;
    colors = {color(255,0,0),color(0,0,255),color(0,255,0)};
    gameWon = 0; // 0 olmalı
    moves = 0;
    gameDraw = false;
    
} 

void draw() {
    
    background(0,0,0); // clear
    
    /// draw lines ///
        stroke(126);
        line(100,0,100,300);
        line(200,0,200,300);
        line(0,100,300,100);
        line(0,200,300,200);
    
    // draw cells ///
        for(int u=0 ; u<3 ; u++){
            for(int v=0 ; v<3 ; v++){
                
                textFont(font,80);
            
                int adjustX = 27;
                int adjustY = 18;
            
                int cellData = game[u][v];
                cellData = cellData-1;
                if(cellData>=0){
                    fill(colors[cellData]);
                    text(new String(turnStr[cellData ]),u*100+adjustX,v*100+adjustY,100,100); 
                }
            }
        }
    
    ///define+display who's turn ///
        
        textFont(font,12);
        fill(colors[2]);
        text(new String(turnStr[turnCnt]),mouseX-3,mouseY-14,100,100);
    
    
    
    
    
    if(gameWon == 1){
        
        textFont(font,12);
        fill(colors[2]);
        text("X WON ! CLICK FOR NEW GAME",5,5,300,300);
    }else if(gameWon == 2){
        
        textFont(font,12);
        fill(colors[2]);
        text("O WON !! CLICK FOR NEW GAME",5,5,300,300);
    }else if(gameDraw){
        
        textFont(font,12);
        fill(colors[2]);
        text("DRAW !! CLICK FOR NEW GAME",5,5,300,300);
    }
    
   
}

void changeTurn(){
    turnCnt++;
    turnCnt = (turnCnt>1) ? 0 : turnCnt;   
}

void mouseClicked(){
    if(gameWon>0){
        
        resetGame();
        
        
        return;
    }
    int[] point = getGridIndex(mouseX,mouseY);
    if(game[point[0]][point[1]] != 0){
        return;   
    }
    
    game[point[0]][point[1]] = turnCnt+1;
    checkGame(point,turnCnt);
    changeTurn();
}

int[] getGridIndex(x,y){
    int[] point = {};
    point[0] = floor(x/100);
    point[1] = floor(y/100);
    return point;
}

void checkGame(int[] _point,int _turnCnt){
        moves++;
        
        //check col
        for(int i = 0; i < 3; i++){
            if(game[_point[0]][i] != _turnCnt+1)break;
            if(i == 3-1){
                gameWon = _turnCnt+1;
                //println("won1");
            }
        }
        
        
        //check row
        for(int i = 0; i < 3; i++){
            if(game[i][_point[1]] != _turnCnt+1)break;
            if(i == 3-1){
                gameWon = _turnCnt+1;
                //println("won2");
            }
        }
        
        
        //check diag
        if(int[0] == int[1]){
            //we're on a diagonal
            for(int i = 0; i < 3; i++){
                if(game[i][i] != _turnCnt+1)break;
                if(i == 3-1){
                    gameWon = _turnCnt+1;
                    //println("won3");
                }
            }
        }
        
        
        //check anti diag
        for(int i = 0;i<3;i++){
            if(game[i][(3-1)-i] != _turnCnt+1)break;
            if(i == 3-1){
                gameWon = _turnCnt+1;
                //println("won4");
            }
        }
        
        // check draw
        if(moves == 9 && gameWon==0){

            gameDraw = true;
            gameWon = 3263; // some number
        }
}

void resetGame(){
    game = new int[3][3];
    turnCnt = 0;
    moves = 0;
    gameWon = 0; // 0 olmalı
    gameDraw = false;   
}


void checkWin(int sum){
   if(sum == 3)gameWon = 1;
   if(sum == 6)checkWin = 2;
}