Destroy the bricks with a ball's game

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No:30507

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Destroy the bricks with a ball
Developer User14751｜Date and time 23/12/22 10:41:58
Build time 35.346 sec｜Game capacity 4.987KB｜

Script

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<!DOCTYPE html>
<html>
  <head>
    <title>Brick Breaker Game</title>
    <style>
      canvas {
        background: #f1f1f1;
        display: block;
        margin: 20px auto;
      }
    </style>
  </head>
  <body>
    <script>
      // Set up the game canvas
      const canvas = document.createElement('canvas');
      const ctx = canvas.getContext('2d');
      canvas.width = 480;
      canvas.height = 320;
      document.body.appendChild(canvas);

// Paddle properties
      const paddleWidth = 75;
      const paddleHeight = 10;
      const paddleSpeed = 5;
      let paddleX = (canvas.width - paddleWidth) / 2;

// Ball properties
      const ballRadius = 10;
      let ballX = canvas.width / 2;
      let ballY = canvas.height - 30;
      let ballDX = 2;
      let ballDY = -2;

// Brick properties
      const brickRowCount = 3;
      const brickColumnCount = 5;
      const brickWidth = 75;
      const brickHeight = 20;
      const brickPadding = 10;
      const brickOffsetTop = 30;
      const brickOffsetLeft = 30;
      let bricks = [];

// Create the bricks
      for (let c = 0; c < brickColumnCount; c++) {
        bricks[c] = [];
        for (let r = 0; r < brickRowCount; r++) {
          bricks[c][r] = { x: 0, y: 0, status: 1 };
        }
      }

// Track user input
      let rightPressed = false;
      let leftPressed = false;

// Event listeners for paddle movement
      document.addEventListener('keydown', keyDownHandler);
      document.addEventListener('keyup', keyUpHandler);

function keyDownHandler(e) {
        if (e.key === 'Right' || e.key === 'ArrowRight') {
          rightPressed = true;
        } else if (e.key === 'Left' || e.key === 'ArrowLeft') {
          leftPressed = true;
        }
      }

function keyUpHandler(e) {
        if (e.key === 'Right' || e.key === 'ArrowRight') {
          rightPressed = false;
        } else if (e.key === 'Left' || e.key === 'ArrowLeft') {
          leftPressed = false;
        }
      }

// Collision detection for ball and bricks
      function collisionDetection() {
        for (let c = 0; c < brickColumnCount; c++) {
          for (let r = 0; r < brickRowCount; r++) {
            const brick = bricks[c][r];
            if (brick.status === 1) {
              if (
                ballX > brick.x &&
                ballX < brick.x + brickWidth &&
                ballY > brick.y &&
                ballY < brick.y + brickHeight
              ) {
                ballDY = -ballDY;
                brick.status = 0;
              }
            }
          }
        }
      }

// Draw the ball
      function drawBall() {
        ctx.beginPath();
        ctx.arc(ballX, ballY, ballRadius, 0, Math.PI * 2);
        ctx.fillStyle = '#0095DD';
        ctx.fill();
        ctx.closePath();
      }

// Draw the paddle
      function drawPaddle() {
        ctx.beginPath();
        ctx.rect(paddleX, canvas.height - paddleHeight, paddleWidth, paddleHeight);
        ctx.fillStyle = '#0095DD';
        ctx.fill();
        ctx.closePath();
      }

// Draw bricks on the canvas
      function drawBricks() {
        for (let c = 0; c < brickColumnCount; c++) {
          for (let r = 0; r < brickRowCount; r++) {
            if (bricks[c][r].status === 1) {
              const brickX = c * (brickWidth + brickPadding) + brickOffsetLeft;
              const brickY = r * (brickHeight + brickPadding) + brickOffsetTop;
              bricks[c][r].x = brickX;
              bricks[c][r].y = brickY;
              ctx.beginPath();
              ctx.rect(brickX, brickY, brickWidth, brickHeight);
              ctx.fillStyle = '#0095DD';
              ctx.fill();
              ctx.closePath();
            }
          }
        }
      }

// Update the game canvas
      function draw() {
        ctx.clearRect(0, 0, canvas.width, canvas.height);
        drawBall();
        drawPaddle();
        drawBricks();
        collisionDetection();

// Reverse ball direction when it hits the walls
        if (ballX + ballDX > canvas.width - ballRadius || ballX + ballDX < ballRadius) {
          ballDX = -ballDX;
        }
        if (ballY + ballDY < ballRadius) {
          ballDY = -ballDY;
        } else if (
          ballY + ballDY > canvas.height - ballRadius - paddleHeight &&
          ballX > paddleX &&
          ballX < paddleX + paddleWidth
        ) {
          ballDY = -ballDY;
        } else if (ballY + ballDY > canvas.height - ballRadius) {
          alert('Game Over');
          document.location.reload();
        }

// Move the paddle based on user input
        if (rightPressed && paddleX < canvas.width - paddleWidth) {
          paddleX += paddleSpeed;
        } else if (leftPressed && paddleX > 0) {
          paddleX -= paddleSpeed;
        }

ballX += ballDX;
        ballY += ballDY;
        requestAnimationFrame(draw);
      }

draw();
    </script>
  </body>
</html>