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No:22934

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Block Breaker
Developer User10606｜Date and time 23/10/26 20:57:53
Build time 116.325 sec｜Game capacity 7.408KB｜

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[PR]現在の売れ筋Kindle本ランキング

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

<!DOCTYPE html>
<html>
<head>
    <style>
        canvas {
            border: 1px solid black;
            background: #eee;
            display: block;
            margin: 0 auto;
        }
    </style>
</head>
<body>
    <canvas id="gameCanvas" width="800" height="400"></canvas>

// Ball position and velocity
        var ballX = canvas.width / 2;
        var ballY = canvas.height - 30;
        var ballRadius = 10;
        var ballSpeedX = 3;
        var ballSpeedY = -3;

// Paddle position and size
        var paddleWidth = 100;
        var paddleHeight = 10;
        var paddleX = (canvas.width - paddleWidth) / 2;

// Paddle movement handling
        var isMovingLeft = false;
        var isMovingRight = false;
        var paddleSpeed = 5;

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

// Game state tracking variables
        var score = 0;
        var lives = 3;

// Array to hold the 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 for paddle movement
        document.addEventListener("touchstart", touchStartHandler);
        document.addEventListener("touchend", touchEndHandler);
        document.addEventListener("touchmove", touchMoveHandler);

function touchEndHandler(e) {
            isMovingLeft = false;
            isMovingRight = false;
        }

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

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

// Function to draw the 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();
                    }
                }
            }
        }

// Function to handle collision detection and bouncing
        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 (
                            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("Congratulations! You won!");
                                document.location.reload();
                            }
                        }
                    }
                }
            }
        }

// Function to update the game state
        function update() {
            // Clear the canvas
            ctx.clearRect(0, 0, canvas.width, canvas.height);

// Draw the ball, paddle, bricks, and score
            drawBall();
            drawPaddle();
            drawBricks();

// Handle paddle movement
            if (isMovingLeft && paddleX > 0) {
                paddleX -= paddleSpeed;
            }
            else if (isMovingRight && paddleX < canvas.width - paddleWidth) {
                paddleX += paddleSpeed;
            }

// Handle ball bouncing off walls and paddle
            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 {
                    lives--;
                    if (!lives) {
                        alert("Game Over");
                        document.location.reload();
                    }
                    else {
                        ballX = canvas.width / 2;
                        ballY = canvas.height - 30;
                        ballSpeedX = 3;
                        ballSpeedY = -3;
                        paddleX = (canvas.width - paddleWidth) / 2;
                    }
                }
            }

ballX += ballSpeedX;
            ballY += ballSpeedY;

// Collision detection
            collisionDetection();

// Display the score and lives
            ctx.font = "16px Arial";
            ctx.fillStyle = "#0095DD";
            ctx.fillText("Score: " + score, 8, 20);
            ctx.fillText("Lives: " + lives, canvas.width - 65, 20);

// Request animation frame to update the game state
            requestAnimationFrame(update);
        }

// Start the game
        update();
    </script>
</body>
</html>