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Block Breaker
Developer User19469｜Date and time 24/2/19 5:34:57
Build time 12.816 sec｜Game capacity 5.083KB｜

Script

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[PR]現在の売れ筋ゲームアプリランキング

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

```html
<!DOCTYPE html>
<html>
<head>
    <title>Block Breaker</title>
    <style>
        #gameCanvas {
            display: block;
            margin: 0 auto;
            background: #FFF;
        }
    </style>
</head>
<body>
    <canvas id="gameCanvas" width="400" height="600"></canvas>
    
    <script>
        const canvas = document.getElementById('gameCanvas');
        const ctx = canvas.getContext('2d');
        
        const paddleWidth = 80;
        const paddleHeight = 10;
        const paddleSpeed = 8;
        let paddleX = (canvas.width - paddleWidth) / 2;
        const ballRadius = 8;
        let ballX = canvas.width / 2;
        let ballY = canvas.height - 60;
        let ballSpeedX = 4;
        let ballSpeedY = -4;
        
        const brickRowCount = 5;
        const brickColumnCount = 8;
        const brickWidth = 40;
        const brickHeight = 15;
        const brickPadding = 10;
        const brickOffsetTop = 30;
        const brickOffsetLeft = 20;
        
        const 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 };
            }
        }
        
        let score = 0;
        
        function drawPaddle() {
            ctx.beginPath();
            ctx.rect(paddleX, canvas.height - paddleHeight, paddleWidth, paddleHeight);
            ctx.fillStyle = '#0095DD';
            ctx.fill();
            ctx.closePath();
        }
        
        function drawBall() {
            ctx.beginPath();
            ctx.arc(ballX, ballY, ballRadius, 0, Math.PI*2);
            ctx.fillStyle = '#0095DD';
            ctx.fill();
            ctx.closePath();
        }
        
        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();
                    }
                }
            }
        }
        
        function collisionDetection() {
            for(let c = 0; c < brickColumnCount; c++) {
                for(let r = 0; r < brickRowCount; r++) {
                    const b = bricks[c][r];
                    if(b.status == 1) {
                        if(ballX > b.x && ballX < b.x + brickWidth && ballY > b.y && ballY < b.y + brickHeight) {
                            ballSpeedY = -ballSpeedY;
                            b.status = 0;
                            score++;
                            if(score == brickRowCount * brickColumnCount) {
                                alert('You win! Congratulations!');
                                document.location.reload();
                            }
                        }
                    }
                }
            }
        }
        
        function drawScore() {
            ctx.font = '16px Arial';
            ctx.fillStyle = '#0095DD';
            ctx.fillText('Score: ' + score, 8, 20);
        }
        
        function draw() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            drawBricks();
            drawPaddle();
            drawBall();
            collisionDetection();
            drawScore();
            
            if(ballX + ballSpeedX > canvas.width - ballRadius || ballX + ballSpeedX < ballRadius) {
                ballSpeedX = -ballSpeedX;
            }
            if(ballY + ballSpeedY < ballRadius) {
                ballSpeedY = -ballSpeedY;
            } else if(ballY + ballSpeedY > canvas.height - ballRadius) {
                if(ballX > paddleX && ballX < paddleX + paddleWidth) {
                    ballSpeedY = -ballSpeedY;
                } else {
                    alert('Game Over. Your score was: ' + score);
                    document.location.reload();
                }
            }
            
            ballX += ballSpeedX;
            ballY += ballSpeedY;
            
            requestAnimationFrame(draw);
        }
        
        document.addEventListener('keydown', function(e) {
            if(e.keyCode == 37) {
                paddleX -= paddleSpeed;
                if(paddleX < 0) {
                    paddleX = 0;
                }
            }
            if(e.keyCode == 39) {
                paddleX += paddleSpeed;
                if(paddleX > canvas.width - paddleWidth) {
                    paddleX = canvas.width - paddleWidth;
                }
            }
        });
        
        draw();
    </script>
</body>
</html>
```