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Billiards
Developer User20165｜Date and time 24/3/4 0:58:31
Build time 6.264 sec｜Game capacity 1.076KB｜

Script

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

<!DOCTYPE html>
<html>
<head>
  <title>Billar</title>
  <style>
    canvas {
      border: 1px solid black;
    }
  </style>
</head>
<body>
  <canvas id="myCanvas" width="400" height="400"></canvas>
  
  <script>
    const canvas = document.getElementById('myCanvas');
    const ctx = canvas.getContext('2d');
    
    let ballX = canvas.width / 2;
    let ballY = canvas.height - 30;
    let ballRadius = 10;
    
    let dx = 2;
    let dy = -2;
    
    function drawBall() {
      ctx.beginPath();
      ctx.arc(ballX, ballY, ballRadius, 0, Math.PI*2);
      ctx.fillStyle = "#0095DD";
      ctx.fill();
      ctx.closePath();
    }
    
    function draw() {
      ctx.clearRect(0, 0, canvas.width, canvas.height);
      drawBall();
      
      ballX += dx;
      ballY += dy;
      
      if(ballX + dx > canvas.width || ballX + dx < 0) {
        dx = -dx;
      }
      
      if(ballY + dy > canvas.height - ballRadius || ballY + dy < ballRadius) {
        dy = -dy;
      }
      
      requestAnimationFrame(draw);
    }
    
    draw();
  </script>
</body>
</html>