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Block Breaker
Developer User7186｜Date and time 23/9/16 18:30:51
Build time 42.183 sec｜Game capacity 5.736KB｜

Script

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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Block Breaker Game</title>
    <style>
        canvas {
            border: 1px solid #000;
            display: block;
            margin: 0 auto;
        }
    </style>
</head>
<body>
    <canvas id="gameCanvas" width="800" height="400"></canvas>
    <script>
        // Initialize the game canvas
        const canvas = document.getElementById("gameCanvas");
        const context = canvas.getContext("2d");

// Ball properties
        let ballX = canvas.width / 2;
        let ballY = canvas.height - 30;
        let ballRadius = 10;
        let ballDx = 3;
        let ballDy = -3;

// Paddle properties
        let paddleHeight = 10;
        let paddleWidth = 75;
        let paddleX = (canvas.width - paddleWidth) / 2;
        let rightPressed = false;
        let leftPressed = false;

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

// Brick grid
        let 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 };
            }
        }

// Game score
        let score = 0;

// Game over flag
        let gameOver = false;

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

// Paddle movement functions
        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;
            }
        }

// Check collision between the ball and bricks
        function collisionDetection() {
            for (let c = 0; c < brickColumnCount; c++) {
                for (let r = 0; r < brickRowCount; r++) {
                    let 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;
                            score++;
                            if (score === brickRowCount * brickColumnCount) {
                                gameOver = true;
                            }
                        }
                    }
                }
            }
        }

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

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

// Draw the 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) {
                        let brickX = (c * (brickWidth + brickPadding)) + brickOffsetLeft;
                        let brickY = (r * (brickHeight + brickPadding)) + brickOffsetTop;
                        bricks[c][r].x = brickX;
                        bricks[c][r].y = brickY;
                        context.beginPath();
                        context.rect(brickX, brickY, brickWidth, brickHeight);
                        context.fillStyle = "#0095DD";
                        context.fill();
                        context.closePath();
                    }
                }
            }
        }

// Update the game canvas
        function draw() {
            context.clearRect(0, 0, canvas.width, canvas.height);

drawBricks();
            drawBall();
            drawPaddle();

collisionDetection();

// Ball movement
            if (ballX + ballDx > canvas.width - ballRadius || ballX + ballDx < ballRadius) {
                ballDx = -ballDx;
            }
            if (ballY + ballDy < ballRadius) {
                ballDy = -ballDy;
            } else if (ballY + ballDy > canvas.height - ballRadius) {
                if (ballX > paddleX && ballX < paddleX + paddleWidth) {
                    ballDy = -ballDy;
                } else {
                    gameOver = true;
                }
            }

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

ballX += ballDx;
            ballY += ballDy;

if (!gameOver) {
                requestAnimationFrame(draw);
            } else {
                alert("Game Over");
            }
        }

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