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No:35957

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Make a breakout
Developer User16701｜Date and time 24/1/16 5:21:19
Build time 20.17 sec｜Game capacity 4.701KB｜

Script

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

<!DOCTYPE html>
<html>
<head>
  <title>Breakout Game</title>
  <style>
    #gameCanvas {
      background-color: black;
      display: block;
      margin: 0 auto;
    }
  </style>
</head>
<body>
  <canvas id="gameCanvas" width="400" height="600"></canvas>

let paddleX = (canvas.width - paddleWidth) / 2;
    let ballX = canvas.width / 2;
    let ballY = canvas.height - 30;
    let ballSpeedX = 3;
    let ballSpeedY = -3;
    let rightPressed = false;
    let leftPressed = false;
    let score = 0;
    let bricks = [];

// Create 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 };
      }
    }

// Event listeners
    document.addEventListener("keydown", keyDownHandler);
    document.addEventListener("keyup", keyUpHandler);

// Keydown event handler
    function keyDownHandler(e) {
      if (e.key === "Right" || e.key === "ArrowRight") {
        rightPressed = true;
      } else if (e.key === "Left" || e.key === "ArrowLeft") {
        leftPressed = true;
      }
    }

// Keyup event handler
    function keyUpHandler(e) {
      if (e.key === "Right" || e.key === "ArrowRight") {
        rightPressed = false;
      } else if (e.key === "Left" || e.key === "ArrowLeft") {
        leftPressed = false;
      }
    }

// Collision detection
    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
            ) {
              ballSpeedY = -ballSpeedY;
              brick.status = 0;
              score++;
              if (score === brickRowCount * brickColumnCount) {
                alert("Congratulations! You won!");
                document.location.reload();
              }
            }
          }
        }
      }
    }

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

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

// Draw the bricks
    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 = "white";
            ctx.fill();
            ctx.closePath();
          }
        }
      }
    }

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

// Ball movement
      ballX += ballSpeedX;
      ballY += ballSpeedY;

// Left and right wall collision
      if (ballX + ballRadius > canvas.width || ballX - ballRadius < 0) {
        ballSpeedX = -ballSpeedX;
      }

// Top wall collision
      if (ballY - ballRadius < 0) {
        ballSpeedY = -ballSpeedY;
      }

// Paddle collision
      if (
        ballY + ballRadius > canvas.height - paddleHeight &&
        ballX >= paddleX &&
        ballX <= paddleX + paddleWidth
      ) {
        ballSpeedY = -ballSpeedY;
      }

// Paddle movement
      if (rightPressed && paddleX < canvas.width - paddleWidth) {
        paddleX += paddleSpeed;
      } else if (leftPressed && paddleX > 0) {
        paddleX -= paddleSpeed;
      }

requestAnimationFrame(update);
    }

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