A ball that multiplies every bounce's game

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No:46683

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A ball that multiplies every bounce
Developer User17064｜Date and time 24/2/25 19:39:07
Build time 4.805 sec｜Game capacity 1.576KB｜

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Click here for free DL of the app version that can save data.

<!DOCTYPE html>
<html>
<head>
    <title>Ball Multiplier Game</title>
</head>
<body style="text-align:center;">
    <canvas id="gameCanvas" width="400" height="400" style="border:1px solid black;"></canvas>
    
    <script>
        var canvas = document.getElementById("gameCanvas");
        var ctx = canvas.getContext("2d");
        
        var ball = {
            x: canvas.width / 2,
            y: canvas.height - 30,
            dx: 2,
            dy: -2,
            radius: 10,
            color: "red"
        };
        
        function drawBall() {
            ctx.beginPath();
            ctx.arc(ball.x, ball.y, ball.radius, 0, Math.PI * 2);
            ctx.fillStyle = ball.color;
            ctx.fill();
            ctx.closePath();
        }
        
        function update() {
            ball.x += ball.dx;
            ball.y += ball.dy;
            
            if(ball.x + ball.radius > canvas.width || ball.x - ball.radius < 0) {
                ball.dx = -ball.dx;
            }
            if(ball.y + ball.radius > canvas.height || ball.y - ball.radius < 0) {
                ball.dy = -ball.dy;
                
                // Multiply the ball on bounce
                ball.radius *= 2;
            }
        }
        
        function render() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            drawBall();
        }
        
        function gameLoop() {
            update();
            render();
            requestAnimationFrame(gameLoop);
        }
        
        gameLoop();
    </script>
</body>
</html>