/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.attachAsset('boss', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bossLevel = 1;
	self.health = 20;
	self.maxHealth = 20;
	self.speed = 2;
	self.direction = 1;
	self.shootCooldown = 0;
	self.shootInterval = 60;
	self.phase = 1;
	self.points = 1000;
	self.setBossLevel = function (level) {
		self.bossLevel = Math.floor(level / 10);
		self.health = 20 + self.bossLevel * 10;
		self.maxHealth = self.health;
		self.points = 1000 * (self.bossLevel + 1);
		bossGraphics.scale.x = 1 + self.bossLevel * 0.2;
		bossGraphics.scale.y = 1 + self.bossLevel * 0.2;
	};
	self.update = function () {
		// Boss movement pattern
		self.y += self.speed * self.direction;
		if (self.y > 600 || self.y < 300) {
			self.direction *= -1;
		}
		// More complex movement for higher level bosses
		if (self.bossLevel >= 2) {
			self.x += Math.sin(LK.ticks * 0.02) * 2;
		}
		self.shootCooldown++;
		// Different attack patterns based on phase
		if (self.health < self.maxHealth * 0.5 && self.phase === 1) {
			self.phase = 2;
			self.shootInterval = 40;
		}
		if (self.health < self.maxHealth * 0.25 && self.phase === 2 && self.bossLevel >= 3) {
			self.phase = 3;
			self.shootInterval = 30;
		}
		if (self.shootCooldown >= self.shootInterval) {
			self.shootCooldown = 0;
			return self.phase; // Return phase for different bullet patterns
		}
		return 0;
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			return true; // Boss destroyed
		}
		tween(bossGraphics, {
			tint: 0xffffff
		}, {
			duration: 100,
			onFinish: function onFinish() {
				bossGraphics.tint = 0xffffff;
			}
		});
		bossGraphics.tint = 0xff0000;
		return false;
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.enemyType = 'basic';
	self.health = 2;
	self.speed = -2;
	self.shootCooldown = 0;
	self.shootInterval = 120;
	self.points = 100;
	self.pattern = 0;
	self.setType = function (type) {
		self.enemyType = type;
		var stats = enemyTypesPerLevel[type];
		self.health = stats.health;
		self.speed = stats.speed;
		self.shootInterval = stats.shootInterval;
		enemyGraphics.tint = stats.color;
		self.points = stats.health * 50;
	};
	self.update = function () {
		self.x += self.speed;
		// Different movement patterns for different enemy types
		if (self.enemyType === 'fast') {
			self.y += Math.sin(self.x * 0.01) * 2;
		} else if (self.enemyType === 'sniper' && self.x < 1500) {
			self.speed = 0;
		}
		self.shootCooldown++;
		if (self.shootCooldown >= self.shootInterval) {
			self.shootCooldown = 0;
			return true; // Signal to shoot
		}
		return false;
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			return true; // Enemy destroyed
		}
		tween(enemyGraphics, {
			tint: 0xffffff
		}, {
			duration: 100,
			onFinish: function onFinish() {
				enemyGraphics.tint = enemyTypesPerLevel[self.enemyType].color;
			}
		});
		enemyGraphics.tint = 0xff0000;
		return false;
	};
	return self;
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = -8;
	self.speedY = 0;
	self.canBeParried = false;
	self.parried = false;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		// Make bullets parryable when they're pink
		if (!self.canBeParried && Math.random() < 0.3) {
			self.canBeParried = true;
			bulletGraphics.tint = 0xff00ff;
		}
	};
	return self;
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.hand = self.attachAsset('hand', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 50,
		y: -10
	});
	self.handBaseY = -10;
	self.handAnimating = false;
	self.health = 3;
	self.maxHealth = 3;
	self.shootCooldown = 0;
	self.shootInterval = 20;
	self.invulnerable = 0;
	self.powerupTime = 0;
	self.powerupType = null;
	self.weaponType = 0;
	self.chargeTime = 0;
	self.isParrying = false;
	self.parryIndicator = null;
	self.originalTint = 0xffffff;
	self.isPowerupFlashing = false;
	self.update = function () {
		if (self.invulnerable > 0) {
			self.invulnerable--;
			self.alpha = Math.sin(self.invulnerable * 0.3) > 0 ? 1 : 0.5;
		} else {
			self.alpha = 1;
		}
		if (self.powerupTime > 0) {
			self.powerupTime--;
			// Flash between powerup color and original color in the last 2 seconds
			if (self.powerupTime <= 120 && !self.isPowerupFlashing) {
				self.isPowerupFlashing = true;
				self.startPowerupFlash();
			}
			if (self.powerupTime === 0) {
				self.powerupType = null;
				self.shootInterval = 20;
				heroGraphics.tint = self.originalTint;
				self.isPowerupFlashing = false;
			}
		}
		self.shootCooldown++;
		// Update charge for charge weapon
		if (self.weaponType === 2 && self.chargeTime > 0) {
			self.chargeTime--;
		}
	};
	self.takeDamage = function () {
		if (self.invulnerable > 0) {
			return false;
		}
		self.health--;
		self.invulnerable = 120; // 2 seconds of invulnerability
		if (self.health <= 0) {
			return true; // Hero destroyed
		}
		LK.effects.flashObject(self, 0xff0000, 500);
		return false;
	};
	self.canShoot = function () {
		var weapon = weaponTypes[self.weaponType];
		var interval = self.shootInterval;
		if (weapon.fireRate) {
			interval = weapon.fireRate;
		}
		if (self.shootCooldown >= interval) {
			self.shootCooldown = 0;
			return true;
		}
		return false;
	};
	self.applyPowerup = function (type) {
		self.powerupType = type;
		self.powerupTime = 600; // 10 seconds
		self.isPowerupFlashing = false;
		// Change hero color based on powerup type
		var powerupColor = type === 'rapid' ? 0xff00ff : 0x00ffff;
		heroGraphics.tint = powerupColor;
		if (type === 'rapid') {
			self.shootInterval = 10;
		}
	};
	self.startPowerupFlash = function () {
		var flashCount = 0;
		var flashInterval = LK.setInterval(function () {
			flashCount++;
			if (flashCount % 2 === 0) {
				heroGraphics.tint = self.originalTint;
			} else {
				var powerupColor = self.powerupType === 'rapid' ? 0xff00ff : 0x00ffff;
				heroGraphics.tint = powerupColor;
			}
			if (self.powerupTime === 0) {
				LK.clearInterval(flashInterval);
				heroGraphics.tint = self.originalTint;
			}
		}, 200); // Flash every 200ms
	};
	self.setWeapon = function (weaponIndex) {
		self.weaponType = weaponIndex;
	};
	self.startParry = function () {
		if (!self.isParrying && !self.parryIndicator) {
			self.isParrying = true;
			self.parryIndicator = self.attachAsset('parryIndicator', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			self.parryIndicator.alpha = 0.5;
			self.parryIndicator.tint = weaponTypes[self.weaponType].parryColor;
		}
	};
	self.endParry = function () {
		self.isParrying = false;
		if (self.parryIndicator) {
			self.parryIndicator.destroy();
			self.parryIndicator = null;
		}
	};
	self.animateHandShoot = function () {
		if (!self.handAnimating) {
			self.handAnimating = true;
			tween(self.hand, {
				y: self.handBaseY - 20
			}, {
				duration: 100,
				onFinish: function onFinish() {
					tween(self.hand, {
						y: self.handBaseY
					}, {
						duration: 100,
						onFinish: function onFinish() {
							self.handAnimating = false;
						}
					});
				}
			});
		}
	};
	return self;
});
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.damage = 1;
	self.weaponType = 0;
	self.target = null;
	self.bounces = 0;
	self.pierce = false;
	self.setWeaponType = function (type, weapon) {
		self.weaponType = type;
		bulletGraphics.tint = weapon.parryColor;
		if (type === 2) {
			// Charge weapon
			self.damage = 2;
			bulletGraphics.scale.x = 1.5;
			bulletGraphics.scale.y = 1.5;
		} else if (type === 4) {
			// Bounce weapon
			self.bounces = weapon.bounceCount;
		}
	};
	self.update = function () {
		if (self.weaponType === 3 && self.target && !self.target.destroyed) {
			// Homing
			var angle = Math.atan2(self.target.y - self.y, self.target.x - self.x);
			self.x += Math.cos(angle) * self.speed;
			self.y += Math.sin(angle) * self.speed;
		} else {
			self.x += self.speed;
		}
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = Math.random() > 0.5 ? 'rapid' : 'triple';
	self.speed = -3;
	self.update = function () {
		self.x += self.speed;
		self.rotation += 0.05;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
game.setBackgroundColor(0x1a1a2e);
// Background layers
var backgroundLayer1 = LK.getAsset('background1', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	alpha: 0.3
});
game.addChild(backgroundLayer1);
var backgroundLayer2 = LK.getAsset('background2', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	alpha: 0.2
});
game.addChild(backgroundLayer2);
// Clouds array for parallax effect
var clouds = [];
for (var i = 0; i < 8; i++) {
	var cloud = LK.getAsset('cloud', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: Math.random() * 2048,
		y: 200 + Math.random() * 1000,
		alpha: 0.1 + Math.random() * 0.1
	});
	clouds.push(cloud);
	game.addChild(cloud);
}
// Game variables
var hero;
var heroBullets = [];
var enemies = [];
var enemyBullets = [];
var powerups = [];
var boss = null;
var currentLevel = 1;
var enemiesSpawned = 0;
var enemiesPerLevel = 10;
var spawnCooldown = 0;
var gameStarted = false;
var isDragging = false;
var dragOffsetY = 0;
var parryWindow = false;
var parryWindowTimer = 0;
// Weapon types with different parry mechanics
var weaponTypes = [{
	name: 'Spread',
	bulletCount: 3,
	fireRate: 25,
	parryColor: 0x00ffff,
	parryEffect: 'freeze'
}, {
	name: 'Rapid',
	fireRate: 15,
	parryColor: 0xff00ff,
	parryEffect: 'explode'
}, {
	name: 'Charge',
	chargeTime: 45,
	fireRate: 60,
	parryColor: 0xffff00,
	parryEffect: 'pierce'
}, {
	name: 'Homing',
	homingStrength: 0.1,
	fireRate: 30,
	parryColor: 0x00ff00,
	parryEffect: 'heal'
}, {
	name: 'Bounce',
	bounceCount: 2,
	fireRate: 35,
	parryColor: 0xff0000,
	parryEffect: 'multi'
}];
var currentWeapon = 0;
// Enemy types per level range (base values)
var enemyTypesBase = {
	basic: {
		health: 2,
		speed: -2,
		shootInterval: 120,
		color: 0xff4444
	},
	fast: {
		health: 1,
		speed: -4,
		shootInterval: 80,
		color: 0xff8844
	},
	heavy: {
		health: 4,
		speed: -1,
		shootInterval: 150,
		color: 0x884444
	},
	sniper: {
		health: 2,
		speed: -1.5,
		shootInterval: 180,
		color: 0x4444ff
	},
	burst: {
		health: 3,
		speed: -2.5,
		shootInterval: 100,
		color: 0xff44ff
	}
};
// Current enemy stats (will be modified based on weapon changes)
var enemyTypesPerLevel = {
	basic: {
		health: 2,
		speed: -2,
		shootInterval: 120,
		color: 0xff4444
	},
	fast: {
		health: 1,
		speed: -4,
		shootInterval: 80,
		color: 0xff8844
	},
	heavy: {
		health: 4,
		speed: -1,
		shootInterval: 150,
		color: 0x884444
	},
	sniper: {
		health: 2,
		speed: -1.5,
		shootInterval: 180,
		color: 0x4444ff
	},
	burst: {
		health: 3,
		speed: -2.5,
		shootInterval: 100,
		color: 0xff44ff
	}
};
// Ground
var ground = LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 2732 - 100
});
game.addChild(ground);
// Hero
hero = new Hero();
hero.x = 200;
hero.y = 2732 - 200;
game.addChild(hero);
// UI Elements
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.y = 20;
LK.gui.top.addChild(scoreTxt);
// Health display
var healthContainer = new Container();
LK.gui.topRight.addChild(healthContainer);
healthContainer.x = -120;
healthContainer.y = 40;
var healthBarBg = LK.getAsset('healthBarBg', {
	anchorX: 0.5,
	anchorY: 0.5
});
healthContainer.addChild(healthBarBg);
var healthBar = LK.getAsset('healthBar', {
	anchorX: 0,
	anchorY: 0.5,
	x: -100
});
healthContainer.addChild(healthBar);
// Level text
var levelTxt = new Text2('Level 1', {
	size: 80,
	fill: 0xFFFF00
});
levelTxt.anchor.set(0.5, 0.5);
LK.gui.center.addChild(levelTxt);
levelTxt.alpha = 0;
// Weapon text
var weaponTxt = new Text2('Weapon: Spread', {
	size: 50,
	fill: 0xFFFFFF
});
weaponTxt.anchor.set(0, 0);
weaponTxt.x = 20;
weaponTxt.y = 120;
LK.gui.topLeft.addChild(weaponTxt);
// Touch controls
game.down = function (x, y, obj) {
	var heroGlobalPos = hero.toGlobal({
		x: 0,
		y: 0
	});
	var localPos = game.toLocal(heroGlobalPos);
	if (Math.abs(x - localPos.x) < 100 && Math.abs(y - localPos.y) < 100) {
		isDragging = true;
		dragOffsetY = y - hero.y;
		gameStarted = true;
	} else if (x > 1024) {
		// Right side tap for parry
		parryWindow = true;
		parryWindowTimer = 20; // 1/3 second parry window
		hero.startParry();
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
game.move = function (x, y, obj) {
	if (isDragging) {
		hero.y = Math.max(300, Math.min(2732 - 200, y - dragOffsetY));
	}
};
// Helper functions
function spawnEnemy() {
	var enemy = new Enemy();
	enemy.x = 2048 + 50;
	enemy.y = 300 + Math.random() * (2732 - 600);
	// Choose enemy type based on level
	var types = ['basic'];
	if (currentLevel >= 5) {
		types.push('fast');
	}
	if (currentLevel >= 10) {
		types.push('heavy');
	}
	if (currentLevel >= 15) {
		types.push('sniper');
	}
	if (currentLevel >= 20) {
		types.push('burst');
	}
	var randomType = types[Math.floor(Math.random() * types.length)];
	enemy.setType(randomType);
	enemies.push(enemy);
	game.addChild(enemy);
}
function spawnBoss() {
	boss = new Boss();
	boss.x = 2048 - 200;
	boss.y = 450;
	boss.setBossLevel(currentLevel);
	game.addChild(boss);
	// Show boss warning
	levelTxt.setText('BOSS LEVEL ' + currentLevel + '!');
	levelTxt.alpha = 1;
	tween(levelTxt, {
		alpha: 0
	}, {
		duration: 2000
	});
}
function spawnPowerup(x, y) {
	if (Math.random() < 0.2) {
		// 20% chance
		var powerup = new PowerUp();
		powerup.x = x;
		powerup.y = y;
		powerups.push(powerup);
		game.addChild(powerup);
	}
}
function shootHeroBullet() {
	var weapon = weaponTypes[hero.weaponType];
	hero.animateHandShoot();
	var bulletStartX = hero.x + hero.hand.x;
	var bulletStartY = hero.y + hero.hand.y;
	if (hero.weaponType === 0 || hero.powerupType === 'triple') {
		// Spread weapon
		// Triple shot
		for (var i = -1; i <= 1; i++) {
			var bullet = new HeroBullet();
			bullet.x = bulletStartX;
			bullet.y = bulletStartY + i * 30;
			bullet.setWeaponType(hero.weaponType, weapon);
			if (hero.weaponType === 3) {
				// Homing
				bullet.target = enemies.length > 0 ? enemies[0] : boss;
			}
			heroBullets.push(bullet);
			game.addChild(bullet);
		}
	} else if (hero.weaponType === 2) {
		// Charge weapon
		if (hero.chargeTime <= 0) {
			var bullet = new HeroBullet();
			bullet.x = bulletStartX;
			bullet.y = bulletStartY;
			bullet.setWeaponType(hero.weaponType, weapon);
			heroBullets.push(bullet);
			game.addChild(bullet);
			hero.chargeTime = weapon.chargeTime;
		}
	} else {
		// Normal shot
		var bullet = new HeroBullet();
		bullet.x = bulletStartX;
		bullet.y = bulletStartY;
		bullet.setWeaponType(hero.weaponType, weapon);
		if (hero.weaponType === 3) {
			// Homing
			bullet.target = enemies.length > 0 ? enemies[0] : boss;
		}
		heroBullets.push(bullet);
		game.addChild(bullet);
	}
	LK.getSound('shoot').play();
}
function shootEnemyBullet(enemy) {
	var bullet = new EnemyBullet();
	bullet.x = enemy.x - 30;
	bullet.y = enemy.y;
	enemyBullets.push(bullet);
	game.addChild(bullet);
	LK.getSound('enemyShoot').play();
}
function shootBossBullet(phase) {
	if (phase === 1) {
		// Single aimed shot
		var bullet = new EnemyBullet();
		bullet.x = boss.x - 75;
		bullet.y = boss.y;
		var angle = Math.atan2(hero.y - boss.y, hero.x - boss.x);
		bullet.speedX = Math.cos(angle) * 10;
		bullet.speedY = Math.sin(angle) * 10;
		enemyBullets.push(bullet);
		game.addChild(bullet);
	} else if (phase === 2) {
		// Spread shot
		for (var i = -2; i <= 2; i++) {
			var bullet = new EnemyBullet();
			bullet.x = boss.x - 75;
			bullet.y = boss.y;
			bullet.speedX = -8;
			bullet.speedY = i * 2;
			enemyBullets.push(bullet);
			game.addChild(bullet);
		}
	}
	LK.getSound('enemyShoot').play();
}
// Game update
game.update = function () {
	if (!gameStarted) {
		return;
	}
	// Update health bar
	healthBar.scale.x = hero.health / hero.maxHealth;
	// Update background clouds
	for (var i = 0; i < clouds.length; i++) {
		clouds[i].x -= 0.5;
		if (clouds[i].x < -100) {
			clouds[i].x = 2048 + 100;
			clouds[i].y = 200 + Math.random() * 1000;
		}
	}
	// Spawn enemies
	if (!boss && enemiesSpawned < enemiesPerLevel) {
		spawnCooldown++;
		var spawnRate = Math.max(60, 120 - currentLevel * 2); // Faster spawns at higher levels
		if (spawnCooldown >= spawnRate) {
			spawnCooldown = 0;
			spawnEnemy();
			enemiesSpawned++;
		}
	}
	// Update parry window
	if (parryWindow && parryWindowTimer > 0) {
		parryWindowTimer--;
		if (parryWindowTimer === 0) {
			parryWindow = false;
			hero.endParry();
		}
	}
	// Check for next level
	if (!boss && enemiesSpawned >= enemiesPerLevel && enemies.length === 0) {
		currentLevel++;
		enemiesSpawned = 0;
		enemiesPerLevel = Math.min(20, 10 + Math.floor(currentLevel / 5));
		// Change weapon every 3 levels
		if ((currentLevel - 1) % 3 === 0 && currentLevel > 1) {
			var newWeaponIndex = Math.floor((currentLevel - 1) / 3) % weaponTypes.length;
			hero.setWeapon(newWeaponIndex);
			weaponTxt.setText('Weapon: ' + weaponTypes[hero.weaponType].name);
			// Make enemies stronger when weapon changes
			var strengthMultiplier = 1 + Math.floor((currentLevel - 1) / 3) * 0.3;
			for (var enemyType in enemyTypesPerLevel) {
				enemyTypesPerLevel[enemyType].health = Math.floor(enemyTypesPerLevel[enemyType].health * strengthMultiplier);
				enemyTypesPerLevel[enemyType].speed = enemyTypesPerLevel[enemyType].speed * (1 + strengthMultiplier * 0.1);
			}
		}
		if (currentLevel > 50) {
			// Win condition
			LK.showYouWin();
		} else if (currentLevel % 10 === 0) {
			// Boss level
			spawnBoss();
		} else {
			// Normal level
			levelTxt.setText('Level ' + currentLevel);
			levelTxt.alpha = 1;
			tween(levelTxt, {
				alpha: 0
			}, {
				duration: 2000
			});
		}
	}
	// Hero shooting
	if (hero.canShoot()) {
		shootHeroBullet();
	}
	// Update hero bullets
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var bullet = heroBullets[i];
		if (bullet.x > 2048 + 50) {
			bullet.destroy();
			heroBullets.splice(i, 1);
			continue;
		}
		// Check enemy collisions
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				if (enemy.takeDamage(bullet.damage)) {
					// Enemy destroyed
					LK.setScore(LK.getScore() + enemy.points);
					scoreTxt.setText('Score: ' + LK.getScore());
					spawnPowerup(enemy.x, enemy.y);
					enemy.destroy();
					enemies.splice(j, 1);
					LK.getSound('enemyDestroy').play();
				}
				bullet.destroy();
				heroBullets.splice(i, 1);
				break;
			}
		}
		// Check boss collision
		if (boss && bullet.intersects(boss)) {
			if (boss.takeDamage(bullet.damage)) {
				// Boss destroyed
				LK.setScore(LK.getScore() + boss.points);
				scoreTxt.setText('Score: ' + LK.getScore());
				spawnPowerup(boss.x, boss.y);
				boss.destroy();
				boss = null;
				LK.getSound('enemyDestroy').play();
			}
			bullet.destroy();
			heroBullets.splice(i, 1);
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (enemy.x < -50) {
			enemy.destroy();
			enemies.splice(i, 1);
			continue;
		}
		if (enemy.update()) {
			shootEnemyBullet(enemy);
		}
		// Check collision with hero
		if (enemy.intersects(hero)) {
			if (hero.takeDamage()) {
				LK.showGameOver();
			}
			enemy.destroy();
			enemies.splice(i, 1);
			LK.getSound('hit').play();
		}
	}
	// Update boss
	if (boss) {
		var phase = boss.update();
		if (phase > 0) {
			shootBossBullet(phase);
		}
		// Check collision with hero
		if (boss.intersects(hero)) {
			if (hero.takeDamage()) {
				LK.showGameOver();
			}
			LK.getSound('hit').play();
		}
	}
	// Update enemy bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var bullet = enemyBullets[i];
		if (bullet.x < -50 || bullet.x > 2048 + 50 || bullet.y < -50 || bullet.y > 2732 + 50) {
			bullet.destroy();
			enemyBullets.splice(i, 1);
			continue;
		}
		// Check collision with hero
		if (bullet.intersects(hero)) {
			if (parryWindow && bullet.canBeParried && !bullet.parried) {
				// Successful parry!
				bullet.parried = true;
				bullet.speedX *= -2;
				bullet.speedY *= -0.5;
				bullet.tint = weaponTypes[hero.weaponType].parryColor;
				LK.setScore(LK.getScore() + 50);
				scoreTxt.setText('Score: ' + LK.getScore());
				// Apply parry effect
				var effect = weaponTypes[hero.weaponType].parryEffect;
				if (effect === 'heal' && hero.health < hero.maxHealth) {
					hero.health++;
				} else if (effect === 'explode') {
					LK.effects.flashScreen(weaponTypes[hero.weaponType].parryColor, 200);
					// Damage all enemies
					for (var j = 0; j < enemies.length; j++) {
						enemies[j].takeDamage(1);
					}
				} else if (effect === 'freeze') {
					// Slow all enemies temporarily
					for (var j = 0; j < enemies.length; j++) {
						enemies[j].speed *= 0.5;
					}
				}
			} else if (!bullet.parried) {
				if (hero.takeDamage()) {
					LK.showGameOver();
				}
				bullet.destroy();
				enemyBullets.splice(i, 1);
				LK.getSound('hit').play();
			}
		}
		// Check parried bullets hitting enemies
		if (bullet.parried) {
			for (var j = enemies.length - 1; j >= 0; j--) {
				var enemy = enemies[j];
				if (bullet.intersects(enemy)) {
					if (enemy.takeDamage(2)) {
						LK.setScore(LK.getScore() + enemy.points * 2);
						scoreTxt.setText('Score: ' + LK.getScore());
						spawnPowerup(enemy.x, enemy.y);
						enemy.destroy();
						enemies.splice(j, 1);
						LK.getSound('enemyDestroy').play();
					}
					bullet.destroy();
					enemyBullets.splice(i, 1);
					break;
				}
			}
			// Check boss collision
			if (boss && bullet.intersects(boss)) {
				if (boss.takeDamage(2)) {
					LK.setScore(LK.getScore() + boss.points);
					scoreTxt.setText('Score: ' + LK.getScore());
					spawnPowerup(boss.x, boss.y);
					boss.destroy();
					boss = null;
					LK.getSound('enemyDestroy').play();
				}
				bullet.destroy();
				enemyBullets.splice(i, 1);
			}
		}
	}
	// Update powerups
	for (var i = powerups.length - 1; i >= 0; i--) {
		var powerup = powerups[i];
		if (powerup.x < -50) {
			powerup.destroy();
			powerups.splice(i, 1);
			continue;
		}
		// Check collision with hero
		if (powerup.intersects(hero)) {
			hero.applyPowerup(powerup.type);
			powerup.destroy();
			powerups.splice(i, 1);
			LK.getSound('powerupCollect').play();
		}
	}
};
// Start music
LK.playMusic('bgMusic');

===================================================================
--- original.js
+++ change.js
@@ -157,9 +157,9 @@
 	});
 	self.hand = self.attachAsset('hand', {
 		anchorX: 0.5,
 		anchorY: 0.5,
-		x: 30,
+		x: 50,
 		y: -10
 	});
 	self.handBaseY = -10;
 	self.handAnimating = false;
@@ -203,9 +203,11 @@
 			self.chargeTime--;
 		}
 	};
 	self.takeDamage = function () {
-		if (self.invulnerable > 0) return false;
+		if (self.invulnerable > 0) {
+			return false;
+		}
 		self.health--;
 		self.invulnerable = 120; // 2 seconds of invulnerability
 		if (self.health <= 0) {
 			return true; // Hero destroyed
@@ -588,12 +590,20 @@
 	enemy.x = 2048 + 50;
 	enemy.y = 300 + Math.random() * (2732 - 600);
 	// Choose enemy type based on level
 	var types = ['basic'];
-	if (currentLevel >= 5) types.push('fast');
-	if (currentLevel >= 10) types.push('heavy');
-	if (currentLevel >= 15) types.push('sniper');
-	if (currentLevel >= 20) types.push('burst');
+	if (currentLevel >= 5) {
+		types.push('fast');
+	}
+	if (currentLevel >= 10) {
+		types.push('heavy');
+	}
+	if (currentLevel >= 15) {
+		types.push('sniper');
+	}
+	if (currentLevel >= 20) {
+		types.push('burst');
+	}
 	var randomType = types[Math.floor(Math.random() * types.length)];
 	enemy.setType(randomType);
 	enemies.push(enemy);
 	game.addChild(enemy);
@@ -703,9 +713,11 @@
 	LK.getSound('enemyShoot').play();
 }
 // Game update
 game.update = function () {
-	if (!gameStarted) return;
+	if (!gameStarted) {
+		return;
+	}
 	// Update health bar
 	healthBar.scale.x = hero.health / hero.maxHealth;
 	// Update background clouds
 	for (var i = 0; i < clouds.length; i++) {