 <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Pong Game</title>
<style>
    canvas {
        background-color: black;
        display: block;
        margin: 0 auto;
    }
</style>
</head>
<body>
<canvas id="pongCanvas" width="800" height="400"></canvas>
<script>
    const canvas = document.getElementById('pongCanvas');
    const context = canvas.getContext('2d');

    // Ball properties
    let ball = {
        x: canvas.width / 2,
        y: canvas.height / 2,
        radius: 10,
        speedX: 5,
        speedY: 5
    };

    // Paddle properties
    let paddle1 = {
        x: 10,
        y: canvas.height / 2 - 50,
        width: 10,
        height: 100,
        speed: 10
    };

    let paddle2 = {
        x: canvas.width - 20,
        y: canvas.height / 2 - 50,
        width: 10,
        height: 100,
        speed: 10
    };

    function drawBall() {
        context.beginPath();
        context.arc(ball.x, ball.y, ball.radius, 0, Math.PI * 2);
        context.fillStyle = 'white';
        context.fill();
        context.closePath();
    }

    function drawPaddles() {
        context.fillStyle = 'white';
        context.fillRect(paddle1.x, paddle1.y, paddle1.width, paddle1.height);
        context.fillRect(paddle2.x, paddle2.y, paddle2.width, paddle2.height);
    }

    function update() {
        // Move the ball
        ball.x += ball.speedX;
        ball.y += ball.speedY;

        // Bounce off top and bottom walls
        if (ball.y + ball.radius > canvas.height || ball.y - ball.radius < 0) {
            ball.speedY = -ball.speedY;
        }

        // Bounce off paddles
        if (
            ball.x - ball.radius < paddle1.x + paddle1.width &&
            ball.y > paddle1.y &&
            ball.y < paddle1.y + paddle1.height
        ) {
            ball.speedX = -ball.speedX;
        }

        if (
            ball.x + ball.radius > paddle2.x &&
            ball.y > paddle2.y &&
            ball.y < paddle2.y + paddle2.height
        ) {
            ball.speedX = -ball.speedX;
        }

        // Reset ball position if it goes beyond paddles
        if (ball.x - ball.radius < 0 || ball.x + ball.radius > canvas.width) {
            ball.x = canvas.width / 2;
            ball.y = canvas.height / 2;
        }
    }

    function render() {
        context.clearRect(0, 0, canvas.width, canvas.height);
        drawBall();
        drawPaddles();
    }

    function gameLoop() {
        update();
        render();
        requestAnimationFrame(gameLoop);
    }

    gameLoop();

    // Control paddles with keyboard
    window.addEventListener('keydown', function (event) {
        switch (event.keyCode) {
            case 87: // W key
                paddle1.y -= paddle1.speed;
                break;
            case 83: // S key
                paddle1.y += paddle1.speed;
                break;
            case 38: // Up arrow
                paddle2.y -= paddle2.speed;
                break;
            case 40: // Down arrow
                paddle2.y += paddle2.speed;
                break;
        }
    });

</script>
</body>
</html>

created 1 year ago

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