Untitled

// Setup the game canvas
const canvas = document.getElementById('gameCanvas');
const ctx = canvas.getContext('2d');

// Set canvas size
canvas.width = 320;
canvas.height = 480;

// Game variables
let bird;
let pipes = [];
let gravity = 0.6;
let lift = -15;
let isGameOver = false;
let score = 0;

// Bird object
class Bird {
    constructor() {
        this.x = 50;
        this.y = canvas.height / 2;
        this.width = 20;
        this.height = 20;
        this.velocity = 0;
    }

    // Update bird's position
    update() {
        this.velocity += gravity;
        this.y += this.velocity;

        // Prevent the bird from flying off the canvas
        if (this.y + this.height > canvas.height) {
            this.y = canvas.height - this.height;
            if (!isGameOver) gameOver();
        } else if (this.y < 0) {
            this.y = 0;
        }
    }

    // Jump the bird
    jump() {
        this.velocity = lift;
    }

    // Draw the bird on the canvas
    draw() {
        ctx.fillStyle = "#FF0";
        ctx.fillRect(this.x, this.y, this.width, this.height);
    }
}

// Pipe object
class Pipe {
    constructor() {
        this.width = 40;
        this.gap = 150;
        this.x = canvas.width;
        this.topHeight = Math.floor(Math.random() * (canvas.height - this.gap));
        this.bottomHeight = canvas.height - (this.topHeight + this.gap);
    }

    // Update pipe's position and check for collisions
    update() {
        this.x -= 2;

        // Remove pipes that have passed off-screen
        if (this.x + this.width < 0) {
            pipes.shift();
            score++;
        }

        // Check for collision with the bird
        if (this.x < bird.x + bird.width && this.x + this.width > bird.x) {
            if (bird.y < this.topHeight || bird.y + bird.height > this.topHeight + this.gap) {
                if (!isGameOver) gameOver();
            }
        }
    }

    // Draw the pipes on the canvas
    draw() {
        ctx.fillStyle = "#00F";
        ctx.fillRect(this.x, 0, this.width, this.topHeight);
        ctx.fillRect(this.x, this.topHeight + this.gap, this.width, this.bottomHeight);
    }
}

// Start the game
function startGame() {
    bird = new Bird();
    pipes = [];
    score = 0;
    isGameOver = false;
    mainLoop();
}

// Game Over function
function gameOver() {
    isGameOver = true;
    alert("Game Over! Final score: " + score);
    startGame(); // Restart the game
}

// Main game loop
function mainLoop() {
    if (isGameOver) return;

    ctx.clearRect(0, 0, canvas.width, canvas.height);

    // Update and draw bird
    bird.update();
    bird.draw();

    // Generate new pipes periodically
    if (pipes.length === 0 || pipes[pipes.length - 1].x < canvas.width - 150) {
        pipes.push(new Pipe());
    }

    // Update and draw pipes
    for (let i = 0; i < pipes.length; i++) {
        pipes[i].update();
        pipes[i].draw();
    }

    // Draw score
    ctx.fillStyle = "#000";
    ctx.font = "20px Arial";
    ctx.fillText("Score: " + score, 10, 30);

    // Request the next frame
    requestAnimationFrame(mainLoop);
}

// Handle keypresses (space bar to jump)
document.addEventListener('keydown', (event) => {
    if (event.key === ' ' || event.key === 'ArrowUp') {
        if (!isGameOver) bird.jump();
    }
});

// Start the game when the page is loaded
startGame();