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No:25814

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Block Breaker
Developer User12685｜Date and time 23/11/25 0:12:31
Build time 134.139 sec｜Game capacity 5.851KB｜

Script

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[PR]現在の売れ筋ゲームランキング

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

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Block Breaker</title>
    <style>
        canvas {
            border: 1px solid black;
            background: #eee;
            display: block;
            margin: 0 auto;
        }
    </style>
</head>

<body>
    <canvas id="gameCanvas" width="480" height="320"></canvas>
    <script>
        // Create the game canvas and context
        var canvas = document.getElementById("gameCanvas");
        var ctx = canvas.getContext("2d");

// Set the initial paddle position and dimensions
        var paddleHeight = 10;
        var paddleWidth = 75;
        var paddleX = (canvas.width - paddleWidth) / 2;

// Define the paddle movement variables
        var rightPressed = false;
        var leftPressed = false;

// Set the initial ball position, radius, and speed
        var ballRadius = 10;
        var ballX = canvas.width / 2;
        var ballY = canvas.height - 30;
        var ballDX = 2;
        var ballDY = -2;

// Set the initial brick variables
        var brickRowCount = 3;
        var brickColumnCount = 5;
        var brickWidth = 75;
        var brickHeight = 20;
        var brickPadding = 10;
        var brickOffsetTop = 30;
        var brickOffsetLeft = 30;

// Create the bricks array
        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 };
            }
        }

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

// Event listener 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;
            }
        }

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

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

// Function to draw the bricks on the canvas
        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 detect collision between the ball and bricks
        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) {
                            ballDY = -ballDY;
                            b.status = 0;
                        }
                    }
                }
            }
        }

// Function to update the game state and draw everything on the canvas
        function drawGame() {
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            drawBricks();
            drawBall();
            drawPaddle();
            collisionDetection();

// Update ball position
            ballX += ballDX;
            ballY += ballDY;

// Reverse ball direction if it hits the walls or paddle
            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 {
                    // Game over condition
                    alert("GAME OVER");
                    document.location.reload();
                }
            }

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

// Request next frame
            requestAnimationFrame(drawGame);
        }

// Start the game loop
        drawGame();
    </script>
</body>

</html>