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No:44991

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Pinball
Developer User19536｜Date and time 24/2/19 22:44:23
Build time 7.354 sec｜Game capacity 1.203KB｜

Script

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[PR]現在のフィギュア売れ筋ランキング

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

<!DOCTYPE html>
<html>
<head>
  <style>
    canvas {
      border: 1px solid black;
      display: block;
      margin: 0 auto;
    }
  </style>
</head>
<body>
  <canvas id="canvas" width="400" height="600"></canvas>
  <script>
    const canvas = document.getElementById('canvas');
    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();
      
      if(ballX + dx > canvas.width-ballRadius || ballX + dx < ballRadius) {
        dx = -dx;
      }
      if(ballY + dy < ballRadius) {
        dy = -dy;
      } else if(ballY + dy > canvas.height-ballRadius) {
        alert('Game Over');
        document.location.reload();
        clearInterval(interval);
      }
      
      ballX += dx;
      ballY += dy;
    }
    
    let interval = setInterval(draw, 10);
  </script>
</body>
</html>