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Flappy bird
Developer User11472｜Date and time 23/11/8 0:59:16
Build time 103.937 sec｜Game capacity 3.098KB｜

Script

Sure, here's a simple implementation of the Flappy Bird game written in a single HTML file using JavaScript:

You can copy the above code and save it as a `.html` file. When you open the file in a web browser, it will start the Flappy Bird game. The player can control the bird's movement by clicking on the game canvas.

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[PR]現在の売れ筋アプリランキング

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

Sure, here's a simple implementation of the Flappy Bird game written in a single HTML file using JavaScript:

```html
<!DOCTYPE html>
<html>
<head>
    <title>Flappy Bird</title>
    <style>
        canvas {
            border: 1px solid black;
        }
    </style>
</head>
<body>
    <canvas id="gameCanvas" width="400" height="600"></canvas>
    <script>
        // Flappy Bird game implementation

// Game variables
        var canvas, ctx;
        var birdX, birdY, birdSpeed;
        var gapX, gapY, gapWidth, gapHeight;
        var score;

// Initialize the game
        function initialize() {
            canvas = document.getElementById("gameCanvas");
            ctx = canvas.getContext("2d");

birdX = 50;
            birdY = canvas.height / 2;
            birdSpeed = 2;
            
            gapWidth = 100;
            gapHeight = 200;
            gapX = canvas.width;
            gapY = Math.random() * (canvas.height - gapHeight);

score = 0;

// Event listeners
            canvas.addEventListener("click", jump);

// Start game loop
            setInterval(update, 10);
        }

// Game update function called in each frame
        function update() {
            // Clear canvas
            ctx.clearRect(0, 0, canvas.width, canvas.height);

// Draw bird
            ctx.fillStyle = "yellow";
            ctx.fillRect(birdX, birdY, 30, 30);

// Draw gap
            ctx.fillStyle = "green";
            ctx.fillRect(gapX, 0, gapWidth, gapY);
            ctx.fillRect(gapX, gapY + gapHeight, gapWidth, canvas.height - gapY - gapHeight);

// Update gap position
            gapX -= birdSpeed;

// Check collision
            if (birdX + 30 > gapX && birdX < gapX + gapWidth && (birdY < gapY || birdY + 30 > gapY + gapHeight)) {
                // Game over
                alert("Game Over! Score: " + score);
                location.reload();
            }

// Check if gap passed and update score
            if (birdX > gapX + gapWidth) {
                score++;
                gapX = canvas.width;
                gapY = Math.random() * (canvas.height - gapHeight);
            }

// Apply gravity to bird
            birdY += birdSpeed;

// Check if bird hits the ground
            if (birdY + 30 > canvas.height) {
                // Game over
                alert("Game Over! Score: " + score);
                location.reload();
            }

// Draw score
            ctx.fillStyle = "black";
            ctx.font = "20px Arial";
            ctx.fillText("Score: " + score, 10, 30);
        }

// Function to make the bird jump
        function jump() {
            birdY -= 50;
        }

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