/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0
});

/**** 
* Classes
****/ 
var Asteroid = Container.expand(function () {
	var self = Container.call(this);
	var asteroid = self.attachAsset('asteroid', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 2;
	self.speed = {
		y: 2 + Math.random() * 2,
		x: (Math.random() - 0.5) * 2
	};
	self.rotation = Math.random() * 0.1 - 0.05;
	self.scoreValue = 15;
	// Random size variation
	var scale = 0.7 + Math.random() * 0.8;
	asteroid.scale.set(scale, scale);
	self.damage = function (amount) {
		self.health -= amount || 1;
		tween(asteroid, {
			tint: 0xffffff
		}, {
			duration: 200,
			onFinish: function onFinish() {
				asteroid.tint = 0x95a5a6;
			}
		});
		return self.health <= 0;
	};
	self.update = function () {
		self.y += self.speed.y;
		self.x += self.speed.x;
		asteroid.rotation += self.rotation;
	};
	return self;
});
var Boss = Container.expand(function (level) {
	var self = Container.call(this);
	var ship = self.attachAsset('boss', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.level = level || 1;
	self.maxHealth = 20 * self.level;
	self.health = self.maxHealth;
	self.scoreValue = 200 * self.level;
	self.phase = 0;
	self.phaseTime = 0;
	self.patterns = ['side-to-side', 'charge', 'retreat'];
	self.currentPattern = 0;
	self.targetX = 0;
	self.targetY = 0;
	// Adjust boss based on level
	if (self.level > 1) {
		ship.tint = 0xcc00cc;
	}
	// Health bar
	self.healthBar = new Container();
	self.addChild(self.healthBar);
	var healthBarBg = self.healthBar.attachAsset('playerLaser', {
		anchorX: 0,
		anchorY: 0.5,
		scaleX: 2,
		scaleY: 0.5
	});
	healthBarBg.tint = 0x333333;
	healthBarBg.width = 200;
	self.healthBarFill = self.healthBar.attachAsset('playerLaser', {
		anchorX: 0,
		anchorY: 0.5,
		scaleX: 2,
		scaleY: 0.4
	});
	self.healthBarFill.tint = 0xff3333;
	self.healthBarFill.width = 200;
	self.healthBar.y = -120;
	self.damage = function (amount) {
		self.health -= amount || 1;
		// Update health bar
		var healthPercent = self.health / self.maxHealth;
		self.healthBarFill.width = 200 * healthPercent;
		tween(ship, {
			tint: 0xffffff
		}, {
			duration: 100,
			onFinish: function onFinish() {
				ship.tint = self.level > 1 ? 0xcc00cc : 0x9b59b6;
			}
		});
		// Change patterns more quickly when damaged
		if (self.health < self.maxHealth * 0.5 && self.phaseTime > 150) {
			self.changePattern();
		}
		return self.health <= 0;
	};
	self.changePattern = function () {
		self.currentPattern = (self.currentPattern + 1) % self.patterns.length;
		self.phaseTime = 0;
		self.phase = 0;
	};
	self.update = function () {
		self.phaseTime++;
		// Change pattern every so often
		if (self.phaseTime > 300) {
			self.changePattern();
		}
		var pattern = self.patterns[self.currentPattern];
		switch (pattern) {
			case 'side-to-side':
				// Move side to side
				self.targetX = 1024 + Math.sin(self.phaseTime * 0.02) * 800;
				if (self.phaseTime < 60) {
					self.targetY = Math.min(self.y + 2, 400);
				} else {
					self.targetY = 400;
				}
				break;
			case 'charge':
				// Charge down then back up
				if (self.phase === 0) {
					self.targetY = self.y + 5;
					if (self.y > 800) {
						self.phase = 1;
					}
				} else {
					self.targetY = Math.max(self.y - 3, 300);
					if (self.y <= 300) {
						self.phase = 0;
					}
				}
				self.targetX = 1024 + Math.sin(self.phaseTime * 0.03) * 500;
				break;
			case 'retreat':
				// Stay near top and move quickly
				self.targetY = 300;
				self.targetX = 1024 + Math.sin(self.phaseTime * 0.05) * 900;
				break;
		}
		// Move toward target position
		self.x += (self.targetX - self.x) * 0.05;
		self.y += (self.targetY - self.y) * 0.05;
	};
	return self;
});
var Enemy = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || 'basic';
	var assetType = self.type === 'fast' ? 'enemy' : 'enemy';
	var ship = self.attachAsset(assetType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Different enemy types
	if (self.type === 'basic') {
		self.health = 1;
		self.speed = 2;
		self.scoreValue = 10;
		self.shootChance = 0.01;
	} else if (self.type === 'fast') {
		self.health = 1;
		self.speed = 3.5;
		self.scoreValue = 15;
		ship.scaleX = 0.8;
		ship.scaleY = 0.8;
		self.shootChance = 0.005;
		ship.tint = 0xff9966;
	} else if (self.type === 'tank') {
		self.health = 3;
		self.speed = 1.5;
		self.scoreValue = 25;
		ship.scaleX = 1.2;
		ship.scaleY = 1.2;
		self.shootChance = 0.015;
		ship.tint = 0x66ff66;
	}
	self.movement = {
		pattern: 'straight',
		phase: Math.random() * Math.PI * 2,
		amplitude: 60 + Math.random() * 60
	};
	self.initialX = 0;
	self.damage = function (amount) {
		self.health -= amount || 1;
		tween(ship, {
			tint: 0xffffff
		}, {
			duration: 200,
			onFinish: function onFinish() {
				ship.tint = self.type === 'fast' ? 0xff9966 : self.type === 'tank' ? 0x66ff66 : 0xe74c3c;
			}
		});
		return self.health <= 0;
	};
	self.update = function () {
		// Basic movement
		self.y += self.speed;
		// Pattern movement
		if (self.movement.pattern === 'sine') {
			self.x = self.initialX + Math.sin(LK.ticks * 0.05 + self.movement.phase) * self.movement.amplitude;
		} else if (self.movement.pattern === 'zigzag') {
			var timeScale = 0.02;
			var t = LK.ticks * timeScale + self.movement.phase;
			var triangleWave = Math.abs(t % 2 - 1) * 2 - 1;
			self.x = self.initialX + triangleWave * self.movement.amplitude;
		}
	};
	return self;
});
var EnemyLaser = Container.expand(function () {
	var self = Container.call(this);
	var laser = self.attachAsset('enemyLaser', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Explosion = Container.expand(function () {
	var self = Container.call(this);
	var explosion = self.attachAsset('explosion', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.9
	});
	// Set up fade and scale
	tween(explosion, {
		alpha: 0,
		scaleX: 2,
		scaleY: 2
	}, {
		duration: 500,
		onFinish: function onFinish() {
			self.destroy();
		}
	});
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var ship = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.shield = self.attachAsset('shield', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	});
	self.lives = 3;
	self.shieldActive = false;
	self.fireRate = 20;
	self.lastShot = 0;
	self.canShoot = true;
	self.power = 1;
	self.invulnerable = false;
	self.activateShield = function (duration) {
		self.shieldActive = true;
		self.shield.alpha = 0.4;
		LK.setTimeout(function () {
			self.shieldActive = false;
			tween(self.shield, {
				alpha: 0
			}, {
				duration: 500
			});
		}, duration);
	};
	self.damage = function () {
		if (self.invulnerable || self.shieldActive) {
			return;
		}
		self.lives--;
		LK.getSound('playerDamage').play();
		// Make player temporarily invulnerable
		self.invulnerable = true;
		// Flash the player to show invulnerability
		var flashCount = 0;
		var flashInterval = LK.setInterval(function () {
			ship.alpha = ship.alpha === 0.3 ? 1 : 0.3;
			flashCount++;
			if (flashCount >= 10) {
				LK.clearInterval(flashInterval);
				ship.alpha = 1;
				self.invulnerable = false;
			}
		}, 150);
	};
	self.upgrade = function (type) {
		LK.getSound('powerup').play();
		if (type === 'shield') {
			self.activateShield(8000);
		} else if (type === 'power') {
			self.power = Math.min(self.power + 1, 3);
			// Reset power after some time
			LK.setTimeout(function () {
				self.power = Math.max(1, self.power - 1);
			}, 10000);
		} else if (type === 'life') {
			self.lives = Math.min(self.lives + 1, 5);
		} else if (type === 'speed') {
			var oldFireRate = self.fireRate;
			self.fireRate = Math.max(self.fireRate - 5, 10);
			// Reset fire rate after some time
			LK.setTimeout(function () {
				self.fireRate = oldFireRate;
			}, 10000);
		}
	};
	return self;
});
var PlayerLaser = Container.expand(function () {
	var self = Container.call(this);
	var laser = self.attachAsset('playerLaser', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -15;
	self.power = 1;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Powerup = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || ['shield', 'power', 'life', 'speed'][Math.floor(Math.random() * 4)];
	var powerup = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set color based on type
	if (self.type === 'shield') {
		powerup.tint = 0x3498db; // Blue
	} else if (self.type === 'power') {
		powerup.tint = 0xe74c3c; // Red
	} else if (self.type === 'life') {
		powerup.tint = 0x2ecc71; // Green
	} else if (self.type === 'speed') {
		powerup.tint = 0xf1c40f; // Yellow
	}
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		powerup.rotation += 0.05;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000022
});

/**** 
* Game Code
****/ 
// Game variables
var player;
var playerLasers = [];
var enemies = [];
var enemyLasers = [];
var asteroids = [];
var powerups = [];
var explosions = [];
var boss = null;
var gameState = 'playing';
var score = 0;
var waveNumber = 1;
var enemiesThisWave = 0;
var enemiesDefeated = 0;
var waveDelay = 0;
var bossWave = false;
var dragStartPosition = {
	x: 0,
	y: 0
};
// UI elements
var scoreTxt = new Text2('SCORE: 0', {
	size: 40,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
LK.gui.topRight.addChild(scoreTxt);
scoreTxt.x = -250;
scoreTxt.y = 50;
var waveText = new Text2('WAVE: 1', {
	size: 40,
	fill: 0xFFFFFF
});
waveText.anchor.set(0.5, 0);
LK.gui.top.addChild(waveText);
waveText.y = 50;
var livesText = new Text2('LIVES: 3', {
	size: 40,
	fill: 0xFFFFFF
});
livesText.anchor.set(0, 0);
LK.gui.topLeft.addChild(livesText);
livesText.x = 150; // Keep away from the top-left menu icon
livesText.y = 50;
// Create game elements
function initGame() {
	// Reset game variables
	playerLasers = [];
	enemies = [];
	enemyLasers = [];
	asteroids = [];
	powerups = [];
	explosions = [];
	boss = null;
	gameState = 'playing';
	score = 0;
	waveNumber = 1;
	enemiesThisWave = 10;
	enemiesDefeated = 0;
	waveDelay = 0;
	bossWave = false;
	// Update UI
	scoreTxt.setText('SCORE: ' + score);
	waveText.setText('WAVE: ' + waveNumber);
	// Create player
	player = new Player();
	player.x = 1024;
	player.y = 2200;
	game.addChild(player);
	livesText.setText('LIVES: ' + player.lives);
	// Start with player moving up
	tween(player, {
		y: 2000
	}, {
		duration: 1000
	});
	// Start the music
	LK.playMusic('gameMusic', {
		fade: {
			start: 0,
			end: 0.7,
			duration: 1000
		}
	});
	// Create first wave
	createWave();
}
// Create a new wave of enemies
function createWave() {
	waveNumber++;
	waveText.setText('WAVE: ' + waveNumber);
	// Every 5 waves is a boss wave
	bossWave = waveNumber % 5 === 0;
	if (bossWave) {
		// Create a boss
		var bossLevel = Math.ceil(waveNumber / 5);
		LK.getSound('bossAlert').play();
		boss = new Boss(bossLevel);
		boss.x = 1024;
		boss.y = -200;
		game.addChild(boss);
		tween(boss, {
			y: 300
		}, {
			duration: 2000
		});
		// Show boss wave text
		var bossText = new Text2('BOSS WAVE!', {
			size: 80,
			fill: 0xFF0000
		});
		bossText.anchor.set(0.5, 0.5);
		bossText.x = 1024;
		bossText.y = 800;
		game.addChild(bossText);
		tween(bossText, {
			alpha: 0,
			y: 700
		}, {
			duration: 2000,
			onFinish: function onFinish() {
				bossText.destroy();
			}
		});
		return;
	}
	// Regular wave
	enemiesThisWave = 10 + waveNumber * 2;
	enemiesDefeated = 0;
	// Show wave text
	var newWaveText = new Text2('WAVE ' + waveNumber, {
		size: 80,
		fill: 0xFFFFFF
	});
	newWaveText.anchor.set(0.5, 0.5);
	newWaveText.x = 1024;
	newWaveText.y = 800;
	game.addChild(newWaveText);
	tween(newWaveText, {
		alpha: 0,
		y: 700
	}, {
		duration: 2000,
		onFinish: function onFinish() {
			newWaveText.destroy();
		}
	});
	// Start spawning enemies after a short delay
	waveDelay = 120;
}
// Create a new enemy
function spawnEnemy() {
	var types = ['basic'];
	// Add more enemy types as waves progress
	if (waveNumber >= 2) {
		types.push('fast');
	}
	if (waveNumber >= 3) {
		types.push('tank');
	}
	var type = types[Math.floor(Math.random() * types.length)];
	var enemy = new Enemy(type);
	// Position the enemy
	enemy.x = Math.random() * 1800 + 124;
	enemy.y = -100;
	enemy.initialX = enemy.x;
	// Set random movement pattern
	var patterns = ['straight'];
	if (waveNumber >= 2) {
		patterns.push('sine');
	}
	if (waveNumber >= 4) {
		patterns.push('zigzag');
	}
	enemy.movement.pattern = patterns[Math.floor(Math.random() * patterns.length)];
	// Add to game
	enemies.push(enemy);
	game.addChild(enemy);
}
// Create a new asteroid
function spawnAsteroid() {
	var asteroid = new Asteroid();
	// Position the asteroid
	asteroid.x = Math.random() * 1800 + 124;
	asteroid.y = -100;
	// Add to game
	asteroids.push(asteroid);
	game.addChild(asteroid);
}
// Create a player laser
function firePlayerLaser() {
	if (!player || !player.canShoot || player.lastShot + player.fireRate > LK.ticks) {
		return;
	}
	player.lastShot = LK.ticks;
	LK.getSound('playerShoot').play();
	// Fire based on power level
	if (player.power === 1) {
		var laser = new PlayerLaser();
		laser.x = player.x;
		laser.y = player.y - 50;
		laser.power = player.power;
		playerLasers.push(laser);
		game.addChild(laser);
	} else if (player.power === 2) {
		for (var i = -1; i <= 1; i += 2) {
			var laser = new PlayerLaser();
			laser.x = player.x + i * 30;
			laser.y = player.y - 40;
			laser.power = player.power;
			playerLasers.push(laser);
			game.addChild(laser);
		}
	} else if (player.power >= 3) {
		var centerLaser = new PlayerLaser();
		centerLaser.x = player.x;
		centerLaser.y = player.y - 50;
		centerLaser.power = player.power;
		playerLasers.push(centerLaser);
		game.addChild(centerLaser);
		for (var i = -1; i <= 1; i += 2) {
			var sideLaser = new PlayerLaser();
			sideLaser.x = player.x + i * 40;
			sideLaser.y = player.y - 30;
			sideLaser.power = player.power - 1;
			playerLasers.push(sideLaser);
			game.addChild(sideLaser);
		}
	}
}
// Create an enemy laser
function fireEnemyLaser(enemy) {
	var laser = new EnemyLaser();
	laser.x = enemy.x;
	laser.y = enemy.y + 40;
	enemyLasers.push(laser);
	game.addChild(laser);
	LK.getSound('enemyShoot').play({
		volume: 0.2
	});
}
// Fire boss laser pattern
function fireBossLasers() {
	if (!boss) {
		return;
	}
	// Different patterns based on boss level and health
	var healthPercent = boss.health / boss.maxHealth;
	var pattern = 'spread';
	if (boss.level >= 2 && healthPercent < 0.5) {
		pattern = 'circle';
	}
	if (pattern === 'spread') {
		for (var i = -2; i <= 2; i++) {
			var laser = new EnemyLaser();
			laser.x = boss.x + i * 50;
			laser.y = boss.y + 80;
			enemyLasers.push(laser);
			game.addChild(laser);
		}
	} else if (pattern === 'circle') {
		var numLasers = 8;
		for (var i = 0; i < numLasers; i++) {
			var angle = i / numLasers * Math.PI * 2;
			var laser = new EnemyLaser();
			laser.x = boss.x + Math.cos(angle) * 100;
			laser.y = boss.y + Math.sin(angle) * 100;
			enemyLasers.push(laser);
			game.addChild(laser);
			// Add directional motion
			laser.update = function () {
				var dx = this.x - boss.x;
				var dy = this.y - boss.y;
				var length = Math.sqrt(dx * dx + dy * dy);
				this.x += dx / length * 5;
				this.y += dy / length * 5;
			};
		}
	}
	LK.getSound('enemyShoot').play({
		volume: 0.4
	});
}
// Create explosion animation
function createExplosion(x, y, scale) {
	var explosion = new Explosion();
	explosion.x = x;
	explosion.y = y;
	if (scale) {
		explosion.scale.set(scale, scale);
	}
	explosions.push(explosion);
	game.addChild(explosion);
	LK.getSound('explosion').play();
}
// Create a powerup
function spawnPowerup(x, y, type) {
	var powerup = new Powerup(type);
	powerup.x = x;
	powerup.y = y;
	powerups.push(powerup);
	game.addChild(powerup);
}
// Handle player shooting and movement
function handlePlayerInput() {
	// Keep player in bounds
	player.x = Math.max(100, Math.min(player.x, 2048 - 100));
	player.y = Math.max(100, Math.min(player.y, 2732 - 100));
	// Auto-fire
	if (LK.ticks % 10 === 0) {
		firePlayerLaser();
	}
}
// Handle collisions between game objects
function handleCollisions() {
	// Player lasers vs enemies
	for (var i = playerLasers.length - 1; i >= 0; i--) {
		var laser = playerLasers[i];
		var hitSomething = false;
		// Check against enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (laser.intersects(enemy)) {
				// Damage enemy
				if (enemy.damage(laser.power)) {
					// Enemy destroyed
					createExplosion(enemy.x, enemy.y);
					// Add score
					score += enemy.scoreValue;
					scoreTxt.setText('SCORE: ' + score);
					// Count enemy as defeated
					enemiesDefeated++;
					// Chance to spawn powerup
					if (Math.random() < 0.1) {
						spawnPowerup(enemy.x, enemy.y);
					}
					enemy.destroy();
					enemies.splice(j, 1);
				}
				// Remove laser
				laser.destroy();
				playerLasers.splice(i, 1);
				hitSomething = true;
				break;
			}
		}
		// Only check other collisions if we haven't hit an enemy
		if (!hitSomething) {
			// Check against boss
			if (boss && laser.intersects(boss)) {
				// Damage boss
				if (boss.damage(laser.power)) {
					// Boss destroyed
					createExplosion(boss.x, boss.y, 2);
					// Add score
					score += boss.scoreValue;
					scoreTxt.setText('SCORE: ' + score);
					// Spawn multiple powerups
					for (var p = 0; p < 3; p++) {
						var powerupType = ['shield', 'power', 'life', 'speed'][Math.floor(Math.random() * 4)];
						spawnPowerup(boss.x + (Math.random() * 200 - 100), boss.y + (Math.random() * 200 - 100), powerupType);
					}
					boss.destroy();
					boss = null;
					// Move to next wave
					createWave();
				}
				// Remove laser
				laser.destroy();
				playerLasers.splice(i, 1);
				hitSomething = true;
			}
			// Check against asteroids
			for (var k = asteroids.length - 1; k >= 0; k--) {
				var asteroid = asteroids[k];
				if (laser.intersects(asteroid)) {
					// Damage asteroid
					if (asteroid.damage(laser.power)) {
						// Asteroid destroyed
						createExplosion(asteroid.x, asteroid.y, 0.7);
						// Add score
						score += asteroid.scoreValue;
						scoreTxt.setText('SCORE: ' + score);
						asteroid.destroy();
						asteroids.splice(k, 1);
					}
					// Remove laser
					laser.destroy();
					playerLasers.splice(i, 1);
					hitSomething = true;
					break;
				}
			}
		}
		// Remove laser if it's off screen
		if (!hitSomething && laser.y < -50) {
			laser.destroy();
			playerLasers.splice(i, 1);
		}
	}
	// Enemy lasers vs player
	for (var i = enemyLasers.length - 1; i >= 0; i--) {
		var laser = enemyLasers[i];
		if (player && laser.intersects(player)) {
			// Damage player
			player.damage();
			// Update UI
			livesText.setText('LIVES: ' + player.lives);
			// Check for game over
			if (player.lives <= 0) {
				// Game over
				createExplosion(player.x, player.y, 1.5);
				player.destroy();
				player = null;
				// Save high score if needed
				if (score > storage.highScore) {
					storage.highScore = score;
				}
				// Show game over after a delay
				LK.setTimeout(function () {
					LK.showGameOver();
				}, 1000);
			}
			// Remove laser
			laser.destroy();
			enemyLasers.splice(i, 1);
		} else if (laser.y > 2732 + 50) {
			// Remove laser if it's off screen
			laser.destroy();
			enemyLasers.splice(i, 1);
		}
	}
	// Player vs enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (player && player.intersects(enemy)) {
			// Damage player
			player.damage();
			// Damage enemy
			enemy.damage(1);
			// Update UI
			livesText.setText('LIVES: ' + player.lives);
			// Check for enemy death
			if (enemy.health <= 0) {
				// Enemy destroyed
				createExplosion(enemy.x, enemy.y);
				// Add score
				score += enemy.scoreValue;
				scoreTxt.setText('SCORE: ' + score);
				// Count enemy as defeated
				enemiesDefeated++;
				enemy.destroy();
				enemies.splice(i, 1);
			}
			// Check for game over
			if (player.lives <= 0) {
				// Game over
				createExplosion(player.x, player.y, 1.5);
				player.destroy();
				player = null;
				// Save high score if needed
				if (score > storage.highScore) {
					storage.highScore = score;
				}
				// Show game over after a delay
				LK.setTimeout(function () {
					LK.showGameOver();
				}, 1000);
			}
		}
		// Remove enemy if it's off screen
		if (enemy.y > 2732 + 100) {
			enemy.destroy();
			enemies.splice(i, 1);
		}
	}
	// Player vs asteroids
	for (var i = asteroids.length - 1; i >= 0; i--) {
		var asteroid = asteroids[i];
		if (player && player.intersects(asteroid)) {
			// Damage player
			player.damage();
			// Damage asteroid
			asteroid.damage(1);
			// Update UI
			livesText.setText('LIVES: ' + player.lives);
			// Check for asteroid death
			if (asteroid.health <= 0) {
				// Asteroid destroyed
				createExplosion(asteroid.x, asteroid.y, 0.7);
				// Add score
				score += asteroid.scoreValue;
				scoreTxt.setText('SCORE: ' + score);
				asteroid.destroy();
				asteroids.splice(i, 1);
			}
			// Check for game over
			if (player.lives <= 0) {
				// Game over
				createExplosion(player.x, player.y, 1.5);
				player.destroy();
				player = null;
				// Save high score if needed
				if (score > storage.highScore) {
					storage.highScore = score;
				}
				// Show game over after a delay
				LK.setTimeout(function () {
					LK.showGameOver();
				}, 1000);
			}
		}
		// Remove asteroid if it's off screen
		if (asteroid.y > 2732 + 100 || asteroid.x < -100 || asteroid.x > 2048 + 100) {
			asteroid.destroy();
			asteroids.splice(i, 1);
		}
	}
	// Player vs powerups
	for (var i = powerups.length - 1; i >= 0; i--) {
		var powerup = powerups[i];
		if (player && player.intersects(powerup)) {
			// Apply powerup
			player.upgrade(powerup.type);
			// Update UI if life powerup
			if (powerup.type === 'life') {
				livesText.setText('LIVES: ' + player.lives);
			}
			// Remove powerup
			powerup.destroy();
			powerups.splice(i, 1);
		} else if (powerup.y > 2732 + 50) {
			// Remove powerup if it's off screen
			powerup.destroy();
			powerups.splice(i, 1);
		}
	}
	// Player vs boss
	if (player && boss && player.intersects(boss)) {
		// Damage player
		player.damage();
		// Update UI
		livesText.setText('LIVES: ' + player.lives);
		// Check for game over
		if (player.lives <= 0) {
			// Game over
			createExplosion(player.x, player.y, 1.5);
			player.destroy();
			player = null;
			// Save high score if needed
			if (score > storage.highScore) {
				storage.highScore = score;
			}
			// Show game over after a delay
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 1000);
		}
	}
}
// Initialize the game
initGame();
// Game down event handler
game.down = function (x, y, obj) {
	if (!player) {
		return;
	}
	dragStartPosition.x = x;
	dragStartPosition.y = y;
	// Fire lasers on tap
	firePlayerLaser();
};
// Game move event handler
game.move = function (x, y, obj) {
	if (!player) {
		return;
	}
	// Move player with drag
	player.x = x;
	player.y = y;
};
// Game update handler
game.update = function () {
	if (gameState !== 'playing') {
		return;
	}
	// Handle player input
	if (player) {
		handlePlayerInput();
	}
	// Handle wave creation
	if (waveDelay > 0) {
		waveDelay--;
	} else if (!bossWave && enemies.length === 0 && enemiesDefeated >= enemiesThisWave) {
		// All enemies for this wave defeated, create next wave
		createWave();
	} else if (!bossWave && enemies.length < 5 && enemiesDefeated < enemiesThisWave && LK.ticks % 30 === 0) {
		// Spawn more enemies for this wave
		spawnEnemy();
	}
	// Spawn asteroids occasionally
	if (LK.ticks % 180 === 0 && Math.random() < 0.7) {
		spawnAsteroid();
	}
	// Boss shooting
	if (boss && LK.ticks % 90 === 0) {
		fireBossLasers();
	}
	// Enemy shooting
	for (var i = 0; i < enemies.length; i++) {
		if (Math.random() < enemies[i].shootChance) {
			fireEnemyLaser(enemies[i]);
		}
	}
	// Collision detection
	handleCollisions();
};