<iframe width='500px' height='400px' src='https://nest.ktbyte.com/nest#274501' allowfullscreen></iframe>

// THE PONG GAME. 

int p1x = 50;
int p1y = 300;
int p2x = 750;
int p2y = 300;
int pw = 10;
int ph = 50;

boolean p1Up = false;
boolean p1Down = false;
boolean p2Up = false;
boolean p2Down = false;

float puckX = 400;
float puckY = 300;
float puckVX = 15;
float puckVY = 0;

int score1 = 0;
int score2 = 0;

int screen = 0;

int AI = 0;
int play = 0;

void setup() {
    size(800, 600);
    rectMode(CENTER);
    resetPuck();
        
}

void draw() {
    if(screen == 0) {
        drawGame();
    }
    if(screen == 1) {
        background(0, 0, 0);
        text("Player 1 Wins", 400, 300);
    }
    if(screen == 2) {
        background(0, 0, 0);
        text("Player 2 Wins", 400, 300);
    }
}


void drawGame() {
    background(0, 0, 0);
    stroke(255);
    line(width/2, 0, width/2, height);
    noFill();
    ellipse(width/2, height/2, 200, 200);
    rect(0, height/2, 400, 300);
    rect(width, height/2, 400, 300);
    textSize(50);
    text("ARENA", width/2 - 85, 320);
    text("PONG", width/2 - 75, 280);
    ellipse(400, 400, 50, 50);
    ellipse(400, 200, 50, 50);
    fill(0, 0, 0);
    fill(225, 225, 225);
    p1();
    p2();
    puck();
    
    
    textSize(30);
    text(score1, 100, 100);
    text(score2, 700, 100);
    
}

void resetPuck() {
    puckX = 400;
    puckY = 300;
    
    float angle = random(-PI/4, +PI/4);
    if(random(0,2) < 1) {
        angle = angle + PI; 
    }
    
    float totalSpeed = 5;
    puckVX = totalSpeed * cos(angle);
    puckVY = totalSpeed * sin(angle);
    
}

void puck() {
    ellipse(puckX, puckY, 15, 15);
    puckX = puckX + puckVX;
    puckY = puckY + puckVY;
    
    if(puckY > 600 || puckY < 0) {
        puckVY = -puckVY;
    }
    
    float dx2 = abs(p2x - puckX);
    float dy2 = abs(p2y - puckY);
    float dx1 = abs(p1x - puckX);
    float dy1 = abs(p1y - puckY);
    
    boolean touching2 = dx2 < pw / 2 && dy2 < ph / 2;
    boolean touching1 = dx1 < pw / 2 && dy1 < ph / 2;
        
    if(touching2) {
        puckVX = -puckVX;
        puckVX = 1.1 * puckVX;
        puckVY = 1.1 * puckVY;
    }  
    if(touching1) {
        puckVX = -puckVX;
        puckVX = 1.1 * puckVX;
        puckVY = 1.1 * puckVY;
    }
}
    
void p1() {
    rect(p1x, p1y, pw, ph);
    if(p1Up && p1y > ph / 2) {
        p1y = p1y - 7;
    }

    if(p1Down && p1y < 600 - ph / 2) {
        p1y = p1y + 7;
}    
    
    if(puckX < 0) {
        resetPuck();
        score2 = score2 + 1;
        if(score2 == 10) {
            screen = 2;
        }
    }

}

void p2() {
    rect(p2x, p2y, pw, ph);
    if(p2Up && p2y > ph / 2) {
        p2y = p2y - 7;
    }
    if(p2Down && p2y < 600 - ph / 2) {
        p2y = p2y + 7;
    }

    if(puckX > 800) {
        resetPuck();
        score1 = score1 + 1;
        if(score1 == 10) {
            screen = 1;
        }if(score1 == 10) {
            screen = 1;
        }
        
    }
}

void keyPressed() {
    if(key == 'w') {
        p1Up = true;
    }
    if(key == 's') {
        p1Down = true;
    }
    
    if(keyCode == UP) {
        p2Up = true;
    }
    if(keyCode == DOWN) {
        p2Down = true;    
    }        
    if(key == 'r') {
        resetPuck();
        p1y = 300;
        p2y = 300;
        score1 = 0;
        score2 = 0;
    }
}

void keyReleased() {
    if(key == 'w') {
        p1Up = false;
    }
    if(key == 's') {
        p1Down = false;
    }
    if(keyCode == UP) {
        p2Up = false;
    }
    if(keyCode == DOWN) {
        p2Down = false;
    }
}