astroidgames/Astroid.html at main · AryanSharma-hash/astroidgames · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Asteroids (with UFO)</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            background-color: #000;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            min-height: 100vh;
            font-family: 'Arial', sans-serif;
        }
        canvas {
            background-color: #0a0a0a;
            border: 1px solid #fff;
        }
        #info {
            display: flex;
            justify-content: space-between;
            width: 800px;
            font-size: 24px;
            margin-bottom: 10px;
        }
    </style>
</head>
<body>

    <div id="info">
        <span id="score">Score: 0</span>
        <span id="lives">Lives: 3</span>
    </div>

    <canvas id="gameCanvas" width="800" height="600"></canvas>

    <script>
        // --- Setup ---
        const canvas = document.getElementById('gameCanvas');
        const ctx = canvas.getContext('2d');
        const scoreEl = document.getElementById('score');
        const livesEl = document.getElementById('lives');

        const FRICTION = 0.7;
        const SHIP_THRUST = 0.1;
        const TURN_SPEED = 0.07;
        const SHIP_SIZE = 20;
        const BULLET_SPEED = 7;
        const UFO_BULLET_SPEED = 4;
        const ASTEROID_NUM = 5;
        const ASTEROID_SPEED = 1;
        const ASTEROID_SIZE = 50;
        const ASTEROID_VERTICES = 10;
        const ASTEROID_JAG = 0.4;
        const UFO_SPEED = 2;
        const UFO_SIZE = 20;
        const UFO_SPAWN_TIME = 10000; // 10 seconds
        const UFO_SHOOT_TIME = 2000; // 2 seconds

        let ship, asteroids, bullets, ufo, ufoBullets;
        let score, lives, isGameOver;
        let ufoSpawnTimer, ufoShootTimer;

        // --- Utility Functions ---
        function degToRad(deg) {
            return deg * Math.PI / 180;
        }

        function dist(x1, y1, x2, y2) {
            return Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
        }

        // --- Classes ---

        class Ship {
            constructor() {
                this.x = canvas.width / 2;
                this.y = canvas.height / 2;
                this.radius = SHIP_SIZE / 2;
                this.angle = degToRad(270); // Pointing up
                this.vel = { x: 0, y: 0 };
                this.rotation = 0;
                this.isThrusting = false;
                this.isInvincible = false;
            }

            draw() {
                ctx.strokeStyle = this.isInvincible ? "grey" : "white";
                ctx.lineWidth = 2;
                ctx.beginPath();
                ctx.moveTo( // Nose
                    this.x + this.radius * Math.cos(this.angle),
                    this.y + this.radius * Math.sin(this.angle)
                );
                ctx.lineTo( // Rear Left
                    this.x - this.radius * (Math.cos(this.angle) + Math.sin(this.angle)),
                    this.y - this.radius * (Math.sin(this.angle) - Math.cos(this.angle))
                );
                ctx.lineTo( // Rear Right
                    this.x - this.radius * (Math.cos(this.angle) - Math.sin(this.angle)),
                    this.y - this.radius * (Math.sin(this.angle) + Math.cos(this.angle))
                );
                ctx.closePath();
                ctx.stroke();

                if (this.isThrusting) {
                    ctx.strokeStyle = "orange";
                    ctx.fillStyle = "red";
                    ctx.lineWidth = 1;
                    ctx.beginPath();
                    ctx.moveTo(this.x - this.radius * (Math.cos(this.angle) * 0.5), this.y - this.radius * (Math.sin(this.angle) * 0.5));
                    ctx.lineTo(this.x - this.radius * 1.5 * Math.cos(this.angle), this.y - this.radius * 1.5 * Math.sin(this.angle));
                    ctx.lineTo(this.x - this.radius * (Math.cos(this.angle) + Math.sin(this.angle) * 0.5), this.y - this.radius * (Math.sin(this.angle) - Math.cos(this.angle) * 0.5));
                    ctx.closePath();
                    ctx.fill();
                    ctx.stroke();
                }
            }

            update() {
                this.angle += this.rotation;
                if (this.isThrusting) {
                    this.vel.x += SHIP_THRUST * Math.cos(this.angle);
                    this.vel.y += SHIP_THRUST * Math.sin(this.angle);
                }
                this.vel.x *= (1 - FRICTION / 60);
                this.vel.y *= (1 - FRICTION / 60);
                this.x += this.vel.x;
                this.y += this.vel.y;
                this.handleScreenWrap();
            }

            handleScreenWrap() {
                if (this.x < 0 - this.radius) this.x = canvas.width + this.radius;
                if (this.x > canvas.width + this.radius) this.x = 0 - this.radius;
                if (this.y < 0 - this.radius) this.y = canvas.height + this.radius;
                if (this.y > canvas.height + this.radius) this.y = 0 - this.radius;
            }
        }

        class Bullet {
            constructor(x, y, angle, speed, color = "white") {
                this.x = x;
                this.y = y;
                this.vel = {
                    x: speed * Math.cos(angle),
                    y: speed * Math.sin(angle)
                };
                this.radius = 3;
                this.lifetime = 80; // Frames
                this.color = color;
            }

            draw() {
                ctx.fillStyle = this.color;
                ctx.beginPath();
                ctx.arc(this.x, this.y, this.radius, 0, Math.PI * 2);
                ctx.fill();
            }

            update() {
                this.x += this.vel.x;
                this.y += this.vel.y;
                this.lifetime--;
            }
        }

        class Asteroid {
            constructor(x, y, radius) {
                this.x = x || Math.random() * canvas.width;
                this.y = y || Math.random() * canvas.height;
                this.radius = radius || ASTEROID_SIZE;
                this.vel = {
                    x: (Math.random() * 2 - 1) * ASTEROID_SPEED,
                    y: (Math.random() * 2 - 1) * ASTEROID_SPEED
                };
                this.vertices = [];
                for (let i = 0; i < ASTEROID_VERTICES; i++) {
                    let angle = (i / ASTEROID_VERTICES) * Math.PI * 2;
                    let r = this.radius + this.radius * (Math.random() * ASTEROID_JAG * 2 - ASTEROID_JAG);
                    this.vertices.push({ x: r * Math.cos(angle), y: r * Math.sin(angle) });
                }
            }

            draw() {
                ctx.strokeStyle = "white";
                ctx.lineWidth = 2;
                ctx.beginPath();
                ctx.moveTo(this.x + this.vertices[0].x, this.y + this.vertices[0].y);
                for (let i = 1; i < this.vertices.length; i++) {
                    ctx.lineTo(this.x + this.vertices[i].x, this.y + this.vertices[i].y);
                }
                ctx.closePath();
                ctx.stroke();
            }

            update() {
                this.x += this.vel.x;
                this.y += this.vel.y;
                this.handleScreenWrap();
            }

            handleScreenWrap() {
                if (this.x < 0 - this.radius) this.x = canvas.width + this.radius;
                if (this.x > canvas.width + this.radius) this.x = 0 - this.radius;
                if (this.y < 0 - this.radius) this.y = canvas.height + this.radius;
                if (this.y > canvas.height + this.radius) this.y = 0 - this.radius;
            }
        }

        // --- NEW UFO CLASS ---
        class UFO {
            constructor() {
                this.radius = UFO_SIZE / 2;
                // Spawn at left or right edge
                this.x = Math.random() < 0.5 ? 0 - this.radius : canvas.width + this.radius;
                this.y = Math.random() * canvas.height;
                this.vel = {
                    x: (this.x < canvas.width / 2) ? UFO_SPEED : -UFO_SPEED,
                    y: 0 // Simple straight line movement
                };
            }

            draw() {
                ctx.strokeStyle = "cyan";
                ctx.lineWidth = 2;
                ctx.beginPath();
                // Bottom hull
                ctx.moveTo(this.x - this.radius, this.y);
                ctx.lineTo(this.x + this.radius, this.y);
                // Top dome
                ctx.moveTo(this.x - this.radius / 2, this.y - this.radius / 2);
                ctx.arc(this.x, this.y - this.radius / 2, this.radius / 2, Math.PI, 0);
                ctx.closePath();
                ctx.stroke();
            }

            update() {
                this.x += this.vel.x;
                this.y += this.vel.y;
                // Screen wrap (or disappear)
                if (this.x < 0 - this.radius || this.x > canvas.width + this.radius) {
                    ufo = null; // UFO leaves screen
                }
            }
        }

        // --- Game Logic ---
        function init() {
            score = 0;
            lives = 3;
            isGameOver = false;
            updateUI();

            ship = new Ship();
            bullets = [];
            ufoBullets = [];
            asteroids = [];
            ufo = null;
            spawnAsteroids(ASTEROID_NUM);

            // Clear old timers if any
            clearInterval(ufoSpawnTimer);
            clearInterval(ufoShootTimer);

            // Start UFO timers
            ufoSpawnTimer = setInterval(spawnUFO, UFO_SPAWN_TIME);
            ufoShootTimer = setInterval(ufoShoot, UFO_SHOOT_TIME);
        }

        function spawnAsteroids(num) {
            for (let i = 0; i < num; i++) {
                let x, y;
                do {
                    x = Math.random() * canvas.width;
                    y = Math.random() * canvas.height;
                } while (dist(ship.x, ship.y, x, y) < 200);
                asteroids.push(new Asteroid(x, y));
            }
        }

        // --- NEW UFO FUNCTIONS ---
        function spawnUFO() {
            if (ufo === null && !isGameOver) {
                ufo = new UFO();
            }
        }

        function ufoShoot() {
            if (ufo !== null && !isGameOver && ship) {
                // Aim at player
                let angle = Math.atan2(ship.y - ufo.y, ship.x - ufo.x);
                ufoBullets.push(new Bullet(ufo.x, ufo.y, angle, UFO_BULLET_SPEED, "lime"));
            }
        }

        function updateUI() {
            scoreEl.textContent = `Score: ${score}`;
            livesEl.textContent = `Lives: ${lives}`;
        }

        function handleCollisions() {
            // Asteroid vs Bullet
            for (let i = asteroids.length - 1; i >= 0; i--) {
                const a = asteroids[i];
                for (let j = bullets.length - 1; j >= 0; j--) {
                    const b = bullets[j];
                    if (dist(a.x, a.y, b.x, b.y) < a.radius + b.radius) {
                        asteroids.splice(i, 1);
                        bullets.splice(j, 1);

                        if (a.radius > ASTEROID_SIZE / 4) {
                            asteroids.push(new Asteroid(a.x, a.y, a.radius / 2));
                            asteroids.push(new Asteroid(a.x, a.y, a.radius / 2));
                        }
                        score += 10;
                        updateUI();
                        break;
                    }
                }
            }

            // Asteroid vs Ship
            if (!ship.isInvincible) {
                for (let i = 0; i < asteroids.length; i++) {
                    const a = asteroids[i];
                    if (dist(a.x, a.y, ship.x, ship.y) < a.radius + ship.radius) {
                        playerHit();
                    }
                }
            }

            // --- NEW UFO COLLISIONS ---
            if (ufo !== null) {
                // Player Bullet vs UFO
                for (let i = bullets.length - 1; i >= 0; i--) {
                    if (dist(ufo.x, ufo.y, bullets[i].x, bullets[i].y) < ufo.radius + bullets[i].radius) {
                        ufo = null;
                        bullets.splice(i, 1);
                        score += 100; // Big points!
                        updateUI();
                        break; // Stop checking bullets for this frame
                    }
                }

                // UFO vs Ship
                if (!ship.isInvincible && dist(ufo.x, ufo.y, ship.x, ship.y) < ufo.radius + ship.radius) {
                    ufo = null;
                    playerHit();
                }
            }

            // UFO Bullet vs Ship
            if (!ship.isInvincible) {
                for (let i = ufoBullets.length - 1; i >= 0; i--) {
                    if (dist(ship.x, ship.y, ufoBullets[i].x, ufoBullets[i].y) < ship.radius + ufoBullets[i].radius) {
                        ufoBullets.splice(i, 1);
                        playerHit();
                        break; // Only take one hit per frame
                    }
                }
            }
        }

        function playerHit() {
            if (isGameOver) return; // Prevent multiple hits after game over
            lives--;
            updateUI();

            if (lives <= 0) {
                gameOver();
            } else {
                ship = new Ship();
                ship.isInvincible = true;
                setTimeout(() => {
                    ship.isInvincible = false;
                }, 2000); // 2 seconds
            }
        }

        function gameOver() {
            isGameOver = true;
            clearInterval(ufoSpawnTimer);
            clearInterval(ufoShootTimer);

            ctx.fillStyle = "white";
            ctx.font = "50px Arial";
            ctx.textAlign = "center";
            ctx.fillText("GAME OVER", canvas.width / 2, canvas.height / 2);
            ctx.font = "20px Arial";
            ctx.fillText("Press 'R' to Restart", canvas.width / 2, canvas.height / 2 + 40);
        }

        // --- Main Game Loop ---
        function animate() {
            if (isGameOver) {
                return;
            }

            // 1. Clear canvas
            ctx.clearRect(0, 0, canvas.width, canvas.height);

            // 2. Update objects
            ship.update();
            bullets.forEach((b, index) => {
                b.update();
                if (b.lifetime <= 0) bullets.splice(index, 1);
            });
            ufoBullets.forEach((b, index) => {
                b.update();
                if (b.lifetime <= 0) ufoBullets.splice(index, 1);
            });
            asteroids.forEach(a => a.update());
            if (ufo) ufo.update();

            // 3. Check collisions
            handleCollisions();

            // 4. Draw objects
            ship.draw();
            bullets.forEach(b => b.draw());
            ufoBullets.forEach(b => b.draw());
            asteroids.forEach(a => a.draw());
            if (ufo) ufo.draw();

            // 5. Check win condition
            if (asteroids.length === 0) {
                spawnAsteroids(ASTEROID_NUM + 1); // Next level
            }

            // 6. Request next frame
            requestAnimationFrame(animate);
        }

        // --- Event Listeners ---
        const keys = {};
        window.addEventListener('keydown', (e) => {
            keys[e.key] = true;

            if (e.key === ' ' && !isGameOver) {
                e.preventDefault();
                // Fire from ship's nose
                let bulletX = ship.x + ship.radius * Math.cos(ship.angle);
                let bulletY = ship.y + ship.radius * Math.sin(ship.angle);
                bullets.push(new Bullet(bulletX, bulletY, ship.angle, BULLET_SPEED, "white"));
            }

            if (e.key === 'r' && isGameOver) {
                init();
                animate();
            }
        });

        window.addEventListener('keyup', (e) => {
            keys[e.key] = false;
        });

        function handleInput() {
            if (isGameOver) return;
            ship.isThrusting = keys['ArrowUp'] || false;
            if (keys['ArrowLeft']) {
                ship.rotation = -TURN_SPEED;
            } else if (keys['ArrowRight']) {
                ship.rotation = TURN_SPEED;
            } else {
                ship.rotation = 0;
            }
        }

        setInterval(handleInput, 1000 / 60);

        // --- Start Game ---
        init();
        animate();

    </script>
</body>
</html>