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No:20340

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Block Breaker
Developer User9018｜Date and time 23/10/9 5:43:42
Build time 21.926 sec｜Game capacity 6.41KB｜

Script

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[PR]現在の本の売れ筋ランキング

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

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>Block Breaker Game</title>
    <style>
        #gameCanvas {
            border: 1px solid black;
        }
    </style>
</head>

// Ball properties
        var ballRadius = 10;
        var ballX = canvas.width / 2;
        var ballY = canvas.height - 30;
        var ballDX = 2;
        var ballDY = -2;

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

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

// Score property
        var score = 0;

// Lives property
        var lives = 3;

// Event listeners for arrow key presses
        document.addEventListener("keydown", keyDownHandler, false);
        document.addEventListener("keyup", keyUpHandler, false);

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;
            }
        }

// Collision detection function for ball and bricks
        function collisionDetection() {
            for (var c = 0; c < brickColumnCount; c++) {
                for (var r = 0; r < brickRowCount; r++) {
                    var 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) {
                                alert("Congratulations! You won!");
                                document.location.reload();
                            }
                        }
                    }
                }
            }
        }

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

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

// Draw bricks on 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();
                    }
                }
            }
        }

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

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

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

// Ball movement logic
            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 {
                    lives--;
                    if (!lives) {
                        alert("Game Over!");
                        document.location.reload();
                    } else {
                        ballX = canvas.width / 2;
                        ballY = canvas.height - 30;
                        ballDX = 2;
                        ballDY = -2;
                        paddleX = (canvas.width - paddleWidth) / 2;
                    }
                }
            }

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

ballX += ballDX;
            ballY += ballDY;

requestAnimationFrame(draw);
        }

draw(); // Start the game
    </script>
</body>

</html>