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No:19720

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Block Breaker
Developer User8793｜Date and time 23/10/6 6:38:45
Build time 25.171 sec｜Game capacity 5.645KB｜

Script

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

<HTML>
  <head>
    <style>
      canvas {
        border: 1px solid black;
        background-color: #f1f1f1;
        display: block;
        margin: 0 auto;
      }
    </style>
  </head>
  <body>
    <canvas id="block-breaker" width="320" height="480"></canvas>
    <script>
      // Game Variables
      var canvas = document.getElementById("block-breaker");
      var ctx = canvas.getContext("2d");
      var ballRadius = 10;
      var x = canvas.width / 2;
      var y = canvas.height - 30;
      var dx = 2;
      var dy = -2;
      var paddleHeight = 10;
      var paddleWidth = 75;
      var paddleX = (canvas.width - paddleWidth) / 2;
      var rightPressed = false;
      var leftPressed = false;
      var brickRowCount = 3;
      var brickColumnCount = 5;
      var brickWidth = 75;
      var brickHeight = 20;
      var brickPadding = 10;
      var brickOffsetTop = 30;
      var brickOffsetLeft = 30;
      var score = 0;
      var lives = 3;

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

// Event Listeners
      document.addEventListener("keydown", keyDownHandler, false);
      document.addEventListener("keyup", keyUpHandler, false);
      document.addEventListener("mousemove", mouseMoveHandler, false);

// Key Handlers
      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;
        }
      }

// Mouse Handler
      function mouseMoveHandler(e) {
        var relativeX = e.clientX - canvas.offsetLeft;
        if (
          relativeX > 0 &&
          relativeX < canvas.width
        ) {
          paddleX = relativeX - paddleWidth / 2;
        }
      }

// Collision Detection
      function collisionDetection() {
        for (var c = 0; c < brickColumnCount; c++) {
          for (var r = 0; r < brickRowCount; r++) {
            var b = bricks[c][r];
            if (b.status == 1) {
              if (
                x > b.x &&
                x < b.x + brickWidth &&
                y > b.y &&
                y < b.y + brickHeight
              ) {
                dy = -dy;
                b.status = 0;
                score++;
                if (score == brickRowCount * brickColumnCount) {
                  alert("Congratulations! You won!");
                  document.location.reload();
                }
              }
            }
          }
        }
      }

// Draw Ball
      function drawBall() {
        ctx.beginPath();
        ctx.arc(x, y, ballRadius, 0, Math.PI * 2);
        ctx.fillStyle = "#0095DD";
        ctx.fill();
        ctx.closePath();
      }

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

// Draw Bricks
      function drawBricks() {
        for (var c = 0; c < brickColumnCount; c++) {
          for (var r = 0; r < brickRowCount; r++) {
            if (bricks[c][r].status == 1) {
              var brickX = c * (brickWidth + brickPadding) + brickOffsetLeft;
              var 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();
            }
          }
        }
      }

// Draw Score
      function drawScore() {
        ctx.font = "16px Arial";
        ctx.fillStyle = "#0095DD";
        ctx.fillText("Score: " + score, 8, 20);
      }

// Draw Lives
      function drawLives() {
        ctx.font = "16px Arial";
        ctx.fillStyle = "#0095DD";
        ctx.fillText("Lives: " + lives, canvas.width - 65, 20);
      }

// Draw Game
      function draw() {
        ctx.clearRect(0, 0, canvas.width, canvas.height);
        drawBricks();
        drawBall();
        drawPaddle();
        drawScore();
        drawLives();
        collisionDetection();

if (x + dx > canvas.width - ballRadius || x + dx < ballRadius) {
          dx = -dx;
        }
        if (y + dy < ballRadius) {
          dy = -dy;
        } else if (y + dy > canvas.height - ballRadius) {
          if (x > paddleX && x < paddleX + paddleWidth) {
            dy = -dy;
          } else {
            lives--;
            if (!lives) {
              alert("Game Over");
              document.location.reload();
            } else {
              x = canvas.width / 2;
              y = canvas.height - 30;
              dx = 2;
              dy = -2;
              paddleX = (canvas.width - paddleWidth) / 2;
            }
          }
        }

if (rightPressed && paddleX < canvas.width - paddleWidth) {
          paddleX += 7;
        } else if (leftPressed && paddleX > 0) {
          paddleX -= 7;
        }

x += dx;
        y += dy;
        requestAnimationFrame(draw);
      }

// Start Game
      draw();
    </script>
  </body>
</HTML>