A ball that multiplies every bounce's game

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No:46684

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A ball that multiplies every bounce
Developer User17064｜Date and time 24/2/25 19:39:51
Build time 4.876 sec｜Game capacity 1.236KB｜

Script

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[PR]現在の売れ筋ゲームランキング

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

<!DOCTYPE html>
<html>
<head>
  <title>Multiplying Ball Game</title>
</head>
<body style="text-align: center;">
  <canvas id="gameCanvas" width="400" height="400"></canvas>
  <script>
    const canvas = document.getElementById('gameCanvas');
    const ctx = canvas.getContext('2d');
    
    let ball = {
      x: canvas.width / 2,
      y: canvas.height - 30,
      radius: 20,
      dx: 2,
      dy: -2
    };
    
    function drawBall() {
      ctx.beginPath();
      ctx.arc(ball.x, ball.y, ball.radius, 0, Math.PI*2);
      ctx.fillStyle = '#0095DD';
      ctx.fill();
      ctx.closePath();
    }
    
    function update() {
      ctx.clearRect(0, 0, canvas.width, canvas.height);
      drawBall();
      
      if(ball.y + ball.dy > canvas.height - ball.radius || ball.y + ball.dy < ball.radius) {
        ball.dy = -ball.dy;
        ball.radius *= 2; // Ball multiplies on bounce
      }
      
      if(ball.x + ball.dx > canvas.width - ball.radius || ball.x + ball.dx < ball.radius) {
        ball.dx = -ball.dx;
      }
      
      ball.x += ball.dx;
      ball.y += ball.dy;
    }
    
    function gameLoop() {
      update();
      requestAnimationFrame(gameLoop);
    }
    
    gameLoop();
  </script>
</body>
</html>