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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.damage = 25;
	self.targetX = 0;
	self.targetY = 0;
	self.update = function () {
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distanceSquared = dx * dx + dy * dy;
		var speedSquared = self.speed * self.speed;
		if (distanceSquared < speedSquared) {
			self.x = self.targetX;
			self.y = self.targetY;
			self.reachedTarget = true;
		} else {
			var distance = Math.sqrt(distanceSquared);
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
	return self;
});
var Cat = Container.expand(function () {
	var self = Container.call(this);
	self.catType = 'basic';
	self.health = 50;
	self.maxHealth = 50;
	self.speed = 1;
	self.pathIndex = 0;
	self.cheeseValue = 10;
	var graphics = self.attachAsset('catBasic', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Health bar background
	self.healthBarBg = self.attachAsset('healthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -50
	});
	// Health bar foreground
	self.healthBar = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -50
	});
	self.update = function () {
		if (self.pathIndex < gamePath.length) {
			var targetTile = gamePath[self.pathIndex];
			var dx = targetTile.x - self.x;
			var dy = targetTile.y - self.y;
			var distanceSquared = dx * dx + dy * dy;
			if (distanceSquared < 25) {
				// 5 * 5 = 25
				self.pathIndex++;
				if (self.pathIndex >= gamePath.length) {
					self.reachedCheese = true;
				}
			} else {
				var distance = Math.sqrt(distanceSquared);
				self.x += dx / distance * self.speed;
				self.y += dy / distance * self.speed;
			}
		}
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.isDead = true;
			LK.effects.flashObject(self, 0xFF0000, 200);
		} else {
			// Update health bar
			var healthPercent = self.health / self.maxHealth;
			self.healthBar.scaleX = healthPercent;
			if (healthPercent > 0.6) {
				self.healthBar.tint = 0x00FF00; // Green
			} else if (healthPercent > 0.3) {
				self.healthBar.tint = 0xFFFF00; // Yellow
			} else {
				self.healthBar.tint = 0xFF0000; // Red
			}
		}
	};
	return self;
});
var ZombieCat = Cat.expand(function () {
	var self = Cat.call(this);
	self.catType = 'zombie';
	self.health = 40;
	self.maxHealth = 40;
	self.speed = 2.5;
	self.cheeseValue = 20;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('catZombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = 0x8B0000; // Dark red tint for zombie
	graphics.alpha = 0.8; // Slightly transparent
	return self;
});
var FastCat = Cat.expand(function () {
	var self = Cat.call(this);
	self.catType = 'fast';
	self.health = 30;
	self.maxHealth = 30;
	self.speed = 2;
	self.cheeseValue = 15;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('catFast', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var FastCatBoss = FastCat.expand(function () {
	var self = FastCat.call(this);
	self.catType = 'fastboss';
	self.health = 120;
	self.maxHealth = 120;
	self.speed = 1.5;
	self.cheeseValue = 75;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('catFast', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.8,
		scaleY: 1.8
	});
	graphics.tint = 0x4B0082; // Indigo tint for fast boss
	return self;
});
var CatSummoner = Cat.expand(function () {
	var self = Cat.call(this);
	self.catType = 'summoner';
	self.health = 150;
	self.maxHealth = 150;
	self.speed = 0.8;
	self.cheeseValue = 60;
	self.summonCooldown = 900; // 15 seconds at 60fps
	self.lastSummon = 0;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('catSummoner', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	graphics.tint = 0x4B0082; // Dark purple tint for summoner
	// Override update to handle summoning
	var originalUpdate = self.update;
	self.update = function () {
		originalUpdate.call(self);
		// Summon zombie cats every 15 seconds
		if (LK.ticks - self.lastSummon > self.summonCooldown) {
			for (var i = 0; i < 5; i++) {
				var zombieCat = new ZombieCat();
				// Spawn near the summoner with slight randomness
				zombieCat.x = self.x + (Math.random() - 0.5) * 100;
				zombieCat.y = self.y + (Math.random() - 0.5) * 100;
				// Ensure they start on the path
				zombieCat.pathIndex = self.pathIndex;
				cats.push(zombieCat);
				game.addChild(zombieCat);
				// Visual summoning effect
				LK.effects.flashObject(zombieCat, 0x8B0000, 500);
			}
			// Visual summoning effect on summoner
			LK.effects.flashObject(self, 0x9932CC, 700);
			self.lastSummon = LK.ticks;
		}
	};
	return self;
});
var CatBoss = Cat.expand(function () {
	var self = Cat.call(this);
	self.catType = 'boss';
	self.health = 200;
	self.maxHealth = 200;
	self.speed = 0.5;
	self.cheeseValue = 50;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('catBoss', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	graphics.tint = 0x8B0000; // Dark red tint for boss
	return self;
});
var CollectedUnitSlot = Container.expand(function (collectedUnit, index) {
	var self = Container.call(this);
	self.collectedUnit = collectedUnit;
	self.isSelected = false;
	var slotGraphics = self.attachAsset('inventorySlot', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	slotGraphics.tint = collectedUnit.color;
	slotGraphics.scaleX = 0.8;
	slotGraphics.scaleY = 0.8;
	// Add unit preview
	var ratAsset = collectedUnit.type === 'archer' || collectedUnit.type === 'sniper' ? 'ratArcher' : collectedUnit.type === 'bomber' ? 'ratBomber' : collectedUnit.type === 'summoner' ? 'ratSummoner' : 'ratWarrior';
	var ratPreview = self.attachAsset(ratAsset, {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: collectedUnit.type === 'tower' ? 1.2 : collectedUnit.type === 'mega' ? 1.0 : collectedUnit.type === 'giant' ? 0.8 : collectedUnit.type === 'electric' ? 0.6 : collectedUnit.type === 'shadow' ? 0.55 : collectedUnit.type === 'summoner' ? 0.65 : 0.5,
		scaleY: collectedUnit.type === 'tower' ? 1.2 : collectedUnit.type === 'mega' ? 1.0 : collectedUnit.type === 'giant' ? 0.8 : collectedUnit.type === 'electric' ? 0.6 : collectedUnit.type === 'shadow' ? 0.55 : collectedUnit.type === 'summoner' ? 0.65 : 0.5,
		y: -10
	});
	// Apply type-specific tints
	if (collectedUnit.type === 'magic') {
		ratPreview.tint = 0x9932CC; // Purple
	} else if (collectedUnit.type === 'sniper') {
		ratPreview.tint = 0x8B4513; // Brown
	} else if (collectedUnit.type === 'bomber') {
		ratPreview.tint = 0xFF6347; // Red-orange
	} else if (collectedUnit.type === 'healer') {
		ratPreview.tint = 0x00FF7F; // Spring green
	} else if (collectedUnit.type === 'giant') {
		ratPreview.tint = 0x8B0000; // Dark red
	} else if (collectedUnit.type === 'mega') {
		ratPreview.tint = 0x4B0082; // Indigo
	} else if (collectedUnit.type === 'tower') {
		ratPreview.tint = 0x2F4F4F; // Dark slate gray
	} else if (collectedUnit.type === 'electric') {
		ratPreview.tint = 0x00FFFF; // Cyan
	} else if (collectedUnit.type === 'shadow') {
		ratPreview.tint = 0x4B0082; // Dark purple
		ratPreview.alpha = 0.7; // Semi-transparent
	} else if (collectedUnit.type === 'summoner') {
		ratPreview.tint = 0x4B0082; // Dark purple
	}
	// Add rarity text
	var rarityText = new Text2(collectedUnit.rarity.charAt(0).toUpperCase(), {
		size: 20,
		fill: '#FFFFFF'
	});
	rarityText.anchor.set(0.5, 0.5);
	rarityText.y = 25;
	self.addChild(rarityText);
	self.setSelected = function (selected) {
		self.isSelected = selected;
		slotGraphics.alpha = selected ? 0.8 : 1.0;
		if (selected) {
			slotGraphics.scaleX = 0.9;
			slotGraphics.scaleY = 0.9;
		} else {
			slotGraphics.scaleX = 0.8;
			slotGraphics.scaleY = 0.8;
		}
	};
	self.down = function (x, y, obj) {
		if (gameStarted && !upgradeMode) {
			selectedCollectedUnit = self.collectedUnit;
			selectedRatType = null; // Deselect basic rat types
			// Update all inventory slots selection
			for (var i = 0; i < inventorySlots.length; i++) {
				inventorySlots[i].setSelected(false);
			}
			// Update all collected unit slots selection
			updateCollectedUnitsDisplay();
		}
	};
	return self;
});
var InventorySlot = Container.expand(function (ratType, cost) {
	var self = Container.call(this);
	self.ratType = ratType;
	self.cost = cost;
	self.isSelected = false;
	var slotGraphics = self.attachAsset('inventorySlot', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add rat preview
	var ratAsset = ratType === 'warrior' ? 'ratWarrior' : 'ratArcher';
	var ratPreview = self.attachAsset(ratAsset, {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.6,
		scaleY: 0.6,
		y: -15
	});
	// Add cost text
	var costText = new Text2(cost.toString(), {
		size: 25,
		fill: '#FFD700'
	});
	costText.anchor.set(0.5, 0.5);
	costText.y = 35;
	self.addChild(costText);
	// Add type label
	var typeText = new Text2(ratType.toUpperCase(), {
		size: 20,
		fill: '#FFFFFF'
	});
	typeText.anchor.set(0.5, 0.5);
	typeText.y = -45;
	self.addChild(typeText);
	self.setSelected = function (selected) {
		self.isSelected = selected;
		slotGraphics.tint = selected ? 0x00FF00 : 0xFFFFFF;
		slotGraphics.alpha = selected ? 0.8 : 1.0;
	};
	self.canAfford = function () {
		return cheesePoints >= self.cost;
	};
	self.updateDisplay = function () {
		var affordable = self.canAfford();
		ratPreview.alpha = affordable ? 1.0 : 0.5;
		costText.tint = affordable ? 0xFFD700 : 0xFF0000;
	};
	self.down = function (x, y, obj) {
		if (gameStarted && !upgradeMode) {
			selectedRatType = self.ratType;
			selectedCollectedUnit = null; // Deselect collected units
			// Update all inventory slots selection
			for (var i = 0; i < inventorySlots.length; i++) {
				inventorySlots[i].setSelected(inventorySlots[i].ratType === selectedRatType);
			}
			// Update collected unit slots to deselect them
			updateCollectedUnitsDisplay();
			updateUI();
		}
	};
	return self;
});
var MainMenu = Container.expand(function () {
	var self = Container.call(this);
	// Menu background
	var menuBg = LK.getAsset('healthBarBg', {
		anchorX: 0,
		anchorY: 0,
		scaleX: 34,
		scaleY: 91,
		x: 0,
		y: 0
	});
	menuBg.alpha = 0.8;
	self.addChild(menuBg);
	// Game title
	var titleText = new Text2('RAT DEFENSE', {
		size: 120,
		fill: '#FFD700'
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 800;
	self.addChild(titleText);
	// Subtitle
	var subtitleText = new Text2('Defend Your Cheese!', {
		size: 60,
		fill: '#FFFFFF'
	});
	subtitleText.anchor.set(0.5, 0.5);
	subtitleText.x = 1024;
	subtitleText.y = 950;
	self.addChild(subtitleText);
	// Start button
	var startButton = new Text2('START GAME', {
		size: 80,
		fill: '#00FF00'
	});
	startButton.anchor.set(0.5, 0.5);
	startButton.x = 1024;
	startButton.y = 1400;
	self.addChild(startButton);
	// Instructions
	var instructionsText = new Text2('Place rats to defend against cats\nUpgrade your rats for better defense', {
		size: 45,
		fill: '#CCCCCC'
	});
	instructionsText.anchor.set(0.5, 0.5);
	instructionsText.x = 1024;
	instructionsText.y = 1600;
	self.addChild(instructionsText);
	startButton.down = function () {
		self.destroy();
		gameStarted = true;
		initializeGame();
	};
	return self;
});
var Rat = Container.expand(function () {
	var self = Container.call(this);
	self.ratType = 'warrior';
	self.range = 150;
	self.damage = 25;
	self.fireRate = 60;
	self.lastShot = 0;
	self.cost = 50;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		if (LK.ticks - self.lastShot > self.fireRate) {
			var target = self.findTarget();
			if (target) {
				self.shoot(target);
				self.lastShot = LK.ticks;
			}
		}
	};
	self.findTarget = function () {
		var closestCat = null;
		var closestDistanceSquared = Infinity;
		var rangeSquared = self.range * self.range;
		for (var i = 0; i < cats.length; i++) {
			var cat = cats[i];
			var dx = cat.x - self.x;
			var dy = cat.y - self.y;
			var distanceSquared = dx * dx + dy * dy;
			if (distanceSquared <= rangeSquared && distanceSquared < closestDistanceSquared) {
				closestDistanceSquared = distanceSquared;
				closestCat = cat;
			}
		}
		return closestCat;
	};
	self.shoot = function (target) {
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullet.targetX = target.x;
		bullet.targetY = target.y;
		bullet.damage = self.damage;
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	};
	self.upgrade = function () {
		if (self.upgradeLevel < self.maxUpgrades) {
			self.upgradeLevel++;
			// Increase damage by 50% per upgrade
			self.damage = Math.floor(self.damage * 1.5);
			// Increase range by 25% per upgrade
			self.range = Math.floor(self.range * 1.25);
			// Visual indicator of upgrade
			self.children[0].tint = self.upgradeLevel === 1 ? 0x00FF00 : self.upgradeLevel === 2 ? 0x0000FF : 0xFF00FF;
			self.children[0].scaleX = 1 + self.upgradeLevel * 0.2;
			self.children[0].scaleY = 1 + self.upgradeLevel * 0.2;
			// Update range indicator if visible
			self.updateRangeIndicator();
			// Add upgrade level stars
			self.showUpgradeStars();
			return true;
		}
		return false;
	};
	self.getUpgradeCost = function () {
		return (self.upgradeLevel + 1) * self.cost;
	};
	self.canUpgrade = function () {
		return self.upgradeLevel < self.maxUpgrades;
	};
	self.showRangeIndicator = function () {
		if (!self.rangeIndicator) {
			self.rangeIndicator = LK.getAsset('rangeIndicator', {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: self.range / 2,
				scaleY: self.range / 2,
				x: self.x,
				y: self.y
			});
			self.rangeIndicator.alpha = 0.3;
			game.addChild(self.rangeIndicator);
		}
	};
	self.hideRangeIndicator = function () {
		if (self.rangeIndicator) {
			self.rangeIndicator.destroy();
			self.rangeIndicator = null;
		}
	};
	self.updateRangeIndicator = function () {
		if (self.rangeIndicator) {
			self.rangeIndicator.scaleX = self.range / 2;
			self.rangeIndicator.scaleY = self.range / 2;
			self.rangeIndicator.x = self.x;
			self.rangeIndicator.y = self.y;
		}
	};
	self.showUpgradeStars = function () {
		// Remove existing stars
		if (self.upgradeStars) {
			for (var i = 0; i < self.upgradeStars.length; i++) {
				self.upgradeStars[i].destroy();
			}
		}
		self.upgradeStars = [];
		// Add stars based on upgrade level
		for (var i = 0; i < self.upgradeLevel; i++) {
			var star = new Text2('★', {
				size: 25,
				fill: '#FFD700'
			});
			star.anchor.set(0.5, 0.5);
			star.x = self.x - 30 + i * 20;
			star.y = self.y - 60;
			self.upgradeStars.push(star);
			game.addChild(star);
		}
	};
	return self;
});
var ZombieRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'zombie';
	self.range = 100;
	self.damage = 15;
	self.fireRate = 50;
	self.cost = 0; // Summoned, not bought
	self.upgradeLevel = 0;
	self.maxUpgrades = 0; // Cannot be upgraded
	self.health = 75;
	self.maxHealth = 75;
	self.lifespan = 1800; // 30 seconds at 60fps
	self.timeAlive = 0;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratZombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = 0x8B4513; // Brown tint for zombie
	graphics.alpha = 0.8; // Slightly transparent
	// Add health bar for zombie rat
	self.healthBarBg = self.attachAsset('healthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -50,
		scaleX: 1.0,
		scaleY: 0.8
	});
	self.healthBar = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -50,
		scaleX: 1.0,
		scaleY: 0.8
	});
	// Override update to handle lifespan and movement
	var originalUpdate = self.update;
	self.pathIndex = gamePath.length - 1; // Start from the end of the path
	self.lastX = self.x;
	self.lastY = self.y;
	self.update = function () {
		// Move along the path in reverse direction (towards cats)
		if (self.pathIndex >= 0) {
			var targetTile = gamePath[self.pathIndex];
			var dx = targetTile.x - self.x;
			var dy = targetTile.y - self.y;
			var distanceSquared = dx * dx + dy * dy;
			if (distanceSquared < 25) {
				// Reached current path point, move to previous one
				self.pathIndex--;
				if (self.pathIndex < 0) {
					// Reached start of path, stay there
					self.pathIndex = 0;
				}
			} else {
				var distance = Math.sqrt(distanceSquared);
				var moveSpeed = 1.5;
				self.x += dx / distance * moveSpeed;
				self.y += dy / distance * moveSpeed;
			}
		}
		originalUpdate.call(self);
		self.timeAlive++;
		// Only die from lifespan if lifespan is not infinite
		if (self.lifespan !== Infinity && self.timeAlive >= self.lifespan) {
			self.isDead = true;
			LK.effects.flashObject(self, 0x654321, 300);
		}
	};
	// Zombie rat can take damage from cats
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.isDead = true;
			LK.effects.flashObject(self, 0xFF0000, 300);
		} else {
			// Update health bar
			var healthPercent = self.health / self.maxHealth;
			self.healthBar.scaleX = healthPercent * 1.0;
			if (healthPercent > 0.6) {
				self.healthBar.tint = 0x00FF00; // Green
			} else if (healthPercent > 0.3) {
				self.healthBar.tint = 0xFFFF00; // Yellow
			} else {
				self.healthBar.tint = 0xFF0000; // Red
			}
		}
	};
	return self;
});
var TowerRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'tower';
	self.range = 500;
	self.damage = 300;
	self.fireRate = 180;
	self.cost = 750;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.health = 500;
	self.maxHealth = 500;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 4.5,
		scaleY: 4.5
	});
	graphics.tint = 0x2F4F4F; // Dark slate gray tint for tower rat
	// Add health bar for tower rat
	self.healthBarBg = self.attachAsset('healthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -150,
		scaleX: 3.0,
		scaleY: 2.5
	});
	self.healthBar = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -150,
		scaleX: 3.0,
		scaleY: 2.5
	});
	// Tower rat can take damage from cats
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.isDead = true;
			LK.effects.flashObject(self, 0xFF0000, 750);
		} else {
			// Update health bar
			var healthPercent = self.health / self.maxHealth;
			self.healthBar.scaleX = healthPercent * 3.0;
			if (healthPercent > 0.6) {
				self.healthBar.tint = 0x00FF00; // Green
			} else if (healthPercent > 0.3) {
				self.healthBar.tint = 0xFFFF00; // Yellow
			} else {
				self.healthBar.tint = 0xFF0000; // Red
			}
		}
	};
	return self;
});
var SummonerRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'summoner';
	self.range = 200;
	self.damage = 20;
	self.fireRate = 120;
	self.cost = 300;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.summonCooldown = 600; // 10 seconds
	self.lastSummon = 0;
	self.maxZombies = 2;
	self.zombiesCount = 0;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratSummoner', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = 0x4B0082; // Dark purple tint for summoner
	// Override update to handle summoning
	var originalUpdate = self.update;
	self.update = function () {
		originalUpdate.call(self);
		// Count current zombies
		self.zombiesCount = 0;
		for (var i = 0; i < rats.length; i++) {
			if (rats[i].ratType === 'zombie') {
				self.zombiesCount++;
			}
		}
		// Summon zombie if cooldown is ready and we need more
		if (LK.ticks - self.lastSummon > self.summonCooldown && self.zombiesCount < self.maxZombies) {
			// Find empty placement tile near cheese
			var cheeseX = gamePath[gamePath.length - 1].x;
			var cheeseY = gamePath[gamePath.length - 1].y;
			var bestTile = null;
			var bestDistance = Infinity;
			for (var j = 0; j < placementTiles.length; j++) {
				var tile = placementTiles[j];
				var dx = cheeseX - tile.x;
				var dy = cheeseY - tile.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				// Check if tile is free
				var tileOccupied = false;
				for (var k = 0; k < rats.length; k++) {
					var ratDx = rats[k].x - tile.x;
					var ratDy = rats[k].y - tile.y;
					if (ratDx * ratDx + ratDy * ratDy < 50 * 50) {
						tileOccupied = true;
						break;
					}
				}
				if (!tileOccupied && distance < bestDistance) {
					bestDistance = distance;
					bestTile = tile;
				}
			}
			if (bestTile) {
				// Summon zombie rat for free
				var zombie = new ZombieRat();
				zombie.x = bestTile.x;
				zombie.y = bestTile.y;
				// Make zombie permanent by removing lifespan
				zombie.lifespan = Infinity;
				rats.push(zombie);
				game.addChild(zombie);
				// Update placement indicator for this tile
				for (var k = 0; k < placementTiles.length; k++) {
					if (placementTiles[k].x === bestTile.x && placementTiles[k].y === bestTile.y) {
						placementIndicators[k].tint = 0xFF6347; // Red tint to show occupied
						placementIndicators[k].alpha = 0.2; // Make it more transparent
						break;
					}
				}
				// Visual summoning effect
				LK.effects.flashObject(self, 0x9932CC, 500);
				LK.effects.flashObject(zombie, 0x00FF00, 700);
				self.lastSummon = LK.ticks;
				updateUI();
			}
		}
	};
	return self;
});
var ShadowRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'shadow';
	self.range = 180;
	self.damage = 60;
	self.fireRate = 75;
	self.cost = 175;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.teleportCooldown = 300; // 5 seconds
	self.lastTeleport = 0;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.1,
		scaleY: 1.1
	});
	graphics.tint = 0x4B0082; // Dark purple tint for shadow
	graphics.alpha = 0.7; // Semi-transparent for stealth effect
	// Override findTarget to prioritize high-value targets
	self.findTarget = function () {
		var bestTarget = null;
		var bestScore = 0;
		var rangeSquared = self.range * self.range;
		for (var i = 0; i < cats.length; i++) {
			var cat = cats[i];
			var dx = cat.x - self.x;
			var dy = cat.y - self.y;
			var distanceSquared = dx * dx + dy * dy;
			if (distanceSquared <= rangeSquared) {
				// Score based on health and cheese value
				var score = cat.health + cat.cheeseValue * 2;
				if (score > bestScore) {
					bestScore = score;
					bestTarget = cat;
				}
			}
		}
		return bestTarget;
	};
	// Override shoot to include teleportation ability
	self.shoot = function (target) {
		// Normal attack
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullet.targetX = target.x;
		bullet.targetY = target.y;
		bullet.damage = self.damage;
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
		// Teleport ability on cooldown
		if (LK.ticks - self.lastTeleport > self.teleportCooldown) {
			var teleportTargets = [];
			for (var i = 0; i < cats.length; i++) {
				var cat = cats[i];
				var dx = cat.x - self.x;
				var dy = cat.y - self.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance > self.range && distance < self.range * 2) {
					teleportTargets.push(cat);
				}
			}
			if (teleportTargets.length > 0) {
				// Teleport to attack distant target
				var teleportTarget = teleportTargets[Math.floor(Math.random() * teleportTargets.length)];
				// Find nearest placement tile to target
				var nearestTile = null;
				var nearestDistance = Infinity;
				for (var j = 0; j < placementTiles.length; j++) {
					var tile = placementTiles[j];
					var tileDx = teleportTarget.x - tile.x;
					var tileDy = teleportTarget.y - tile.y;
					var tileDistance = Math.sqrt(tileDx * tileDx + tileDy * tileDy);
					// Check if tile is free
					var tileOccupied = false;
					for (var k = 0; k < rats.length; k++) {
						if (rats[k] !== self) {
							var ratDx = rats[k].x - tile.x;
							var ratDy = rats[k].y - tile.y;
							if (ratDx * ratDx + ratDy * ratDy < 50 * 50) {
								tileOccupied = true;
								break;
							}
						}
					}
					if (!tileOccupied && tileDistance < nearestDistance) {
						nearestDistance = tileDistance;
						nearestTile = tile;
					}
				}
				if (nearestTile) {
					// Teleportation effect
					LK.effects.flashObject(self, 0x9932CC, 300);
					// Update old tile indicator
					for (var k = 0; k < placementTiles.length; k++) {
						var tile = placementTiles[k];
						var dx = self.x - tile.x;
						var dy = self.y - tile.y;
						if (dx * dx + dy * dy < 50 * 50) {
							placementIndicators[k].tint = 0x90EE90;
							placementIndicators[k].alpha = 0.6;
							break;
						}
					}
					// Teleport to new position
					self.x = nearestTile.x;
					self.y = nearestTile.y;
					// Update new tile indicator
					for (var k = 0; k < placementTiles.length; k++) {
						var tile = placementTiles[k];
						if (tile.x === nearestTile.x && tile.y === nearestTile.y) {
							placementIndicators[k].tint = 0xFF6347;
							placementIndicators[k].alpha = 0.2;
							break;
						}
					}
					self.lastTeleport = LK.ticks;
					LK.effects.flashObject(self, 0x4B0082, 500);
				}
			}
		}
	};
	return self;
});
var MegaRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'mega';
	self.range = 400;
	self.damage = 200;
	self.fireRate = 120;
	self.cost = 500;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.health = 300;
	self.maxHealth = 300;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 3.5,
		scaleY: 3.5
	});
	graphics.tint = 0x4B0082; // Indigo tint for mega rat
	// Add health bar for mega rat
	self.healthBarBg = self.attachAsset('healthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -120,
		scaleX: 2.0,
		scaleY: 2.0
	});
	self.healthBar = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -120,
		scaleX: 2.0,
		scaleY: 2.0
	});
	// Mega rat can take damage from cats
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.isDead = true;
			LK.effects.flashObject(self, 0xFF0000, 500);
		} else {
			// Update health bar
			var healthPercent = self.health / self.maxHealth;
			self.healthBar.scaleX = healthPercent * 2.0;
			if (healthPercent > 0.6) {
				self.healthBar.tint = 0x00FF00; // Green
			} else if (healthPercent > 0.3) {
				self.healthBar.tint = 0xFFFF00; // Yellow
			} else {
				self.healthBar.tint = 0xFF0000; // Red
			}
		}
	};
	return self;
});
var MagicRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'magic';
	self.range = 180;
	self.damage = 35;
	self.fireRate = 75;
	self.cost = 100;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = 0x9932CC; // Purple tint for magic
	return self;
});
var HealerRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'healer';
	self.range = 200;
	self.damage = 0;
	self.fireRate = 180;
	self.cost = 80;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.healAmount = 25;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = 0x00FF7F; // Spring green tint for healer
	// Override findTarget to find damaged rats instead of cats
	self.findTarget = function () {
		var mostDamagedRat = null;
		var lowestHealthPercent = 1.0;
		var rangeSquared = self.range * self.range;
		for (var i = 0; i < rats.length; i++) {
			var rat = rats[i];
			if (rat === self) continue; // Don't heal self
			var dx = rat.x - self.x;
			var dy = rat.y - self.y;
			var distanceSquared = dx * dx + dy * dy;
			if (distanceSquared <= rangeSquared && rat.health && rat.maxHealth) {
				var healthPercent = rat.health / rat.maxHealth;
				if (healthPercent < lowestHealthPercent && healthPercent < 1.0) {
					lowestHealthPercent = healthPercent;
					mostDamagedRat = rat;
				}
			}
		}
		return mostDamagedRat;
	};
	// Override shoot to heal instead of damage
	self.shoot = function (target) {
		if (target.health && target.maxHealth) {
			target.health = Math.min(target.maxHealth, target.health + self.healAmount);
			// Visual healing effect
			LK.effects.flashObject(target, 0x00FF00, 300);
		}
	};
	return self;
});
var GiantRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'giant';
	self.range = 300;
	self.damage = 100;
	self.fireRate = 150;
	self.cost = 250;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.health = 150;
	self.maxHealth = 150;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2.5,
		scaleY: 2.5
	});
	graphics.tint = 0x8B0000; // Dark red tint for giant
	// Add health bar for giant rat
	self.healthBarBg = self.attachAsset('healthBarBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -80,
		scaleX: 1.5,
		scaleY: 1.5
	});
	self.healthBar = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -80,
		scaleX: 1.5,
		scaleY: 1.5
	});
	// Giant rat can take damage from cats
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.isDead = true;
			LK.effects.flashObject(self, 0xFF0000, 500);
		} else {
			// Update health bar
			var healthPercent = self.health / self.maxHealth;
			self.healthBar.scaleX = healthPercent * 1.5;
			if (healthPercent > 0.6) {
				self.healthBar.tint = 0x00FF00; // Green
			} else if (healthPercent > 0.3) {
				self.healthBar.tint = 0xFFFF00; // Yellow
			} else {
				self.healthBar.tint = 0xFF0000; // Red
			}
		}
	};
	return self;
});
var ElectricRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'electric';
	self.range = 250;
	self.damage = 40;
	self.fireRate = 90;
	self.cost = 200;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratWarrior', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.2,
		scaleY: 1.2
	});
	graphics.tint = 0x00FFFF; // Cyan tint for electric
	// Override shoot to create chain lightning
	self.shoot = function (target) {
		var chainTargets = [target];
		var chainRange = 100;
		var maxChains = 3;
		// Find additional targets for chain lightning
		for (var chain = 0; chain < maxChains; chain++) {
			var lastTarget = chainTargets[chainTargets.length - 1];
			var closestCat = null;
			var closestDistanceSquared = Infinity;
			var chainRangeSquared = chainRange * chainRange;
			for (var i = 0; i < cats.length; i++) {
				var cat = cats[i];
				if (chainTargets.indexOf(cat) === -1) {
					// Not already targeted
					var dx = cat.x - lastTarget.x;
					var dy = cat.y - lastTarget.y;
					var distanceSquared = dx * dx + dy * dy;
					if (distanceSquared <= chainRangeSquared && distanceSquared < closestDistanceSquared) {
						closestDistanceSquared = distanceSquared;
						closestCat = cat;
					}
				}
			}
			if (closestCat) {
				chainTargets.push(closestCat);
			} else {
				break;
			}
		}
		// Damage all targets in chain
		for (var i = 0; i < chainTargets.length; i++) {
			var damage = Math.floor(self.damage * (0.8 + 0.2 * (4 - i) / 4)); // Damage decreases per chain
			chainTargets[i].takeDamage(damage);
			LK.effects.flashObject(chainTargets[i], 0x00FFFF, 200);
		}
		// Visual lightning effect
		LK.effects.flashScreen(0x00FFFF, 150);
		LK.getSound('shoot').play();
	};
	return self;
});
var BomberRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'bomber';
	self.range = 120;
	self.damage = 15;
	self.fireRate = 90;
	self.cost = 125;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratBomber', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Override shoot to create splash damage
	self.shoot = function (target) {
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullet.targetX = target.x;
		bullet.targetY = target.y;
		bullet.damage = self.damage;
		bullet.isSplash = true; // Mark as splash damage bullet
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	};
	return self;
});
var ArcherRat = Rat.expand(function () {
	var self = Rat.call(this);
	self.ratType = 'archer';
	self.range = 220;
	self.damage = 20;
	self.fireRate = 45;
	self.cost = 75;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratArcher', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var SniperRat = ArcherRat.expand(function () {
	var self = ArcherRat.call(this);
	self.ratType = 'sniper';
	self.range = 350;
	self.damage = 50;
	self.fireRate = 120;
	self.cost = 150;
	self.upgradeLevel = 0;
	self.maxUpgrades = 3;
	self.removeChild(self.children[0]);
	var graphics = self.attachAsset('ratArcher', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = 0x8B4513; // Brown tint for sniper
	return self;
});
var RollScreen = Container.expand(function () {
	var self = Container.call(this);
	// Background overlay
	var overlay = LK.getAsset('healthBarBg', {
		anchorX: 0,
		anchorY: 0,
		scaleX: 34,
		scaleY: 91,
		x: 0,
		y: 0
	});
	overlay.alpha = 0.9;
	overlay.tint = 0x000033;
	self.addChild(overlay);
	// Title
	var titleText = new Text2('SUMMON UNITS', {
		size: 100,
		fill: '#FFD700'
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 400;
	self.addChild(titleText);
	// Roll result area
	var resultContainer = new Container();
	resultContainer.x = 1024;
	resultContainer.y = 1000;
	self.addChild(resultContainer);
	// Single roll button
	var singleRollButton = new Text2('SINGLE ROLL (25 Cheese)', {
		size: 60,
		fill: '#00FF00'
	});
	singleRollButton.anchor.set(0.5, 0.5);
	singleRollButton.x = 512;
	singleRollButton.y = 1600;
	self.addChild(singleRollButton);
	// Multi roll button
	var multiRollButton = new Text2('MULTI ROLL x5 (100 Cheese)', {
		size: 60,
		fill: '#0080FF'
	});
	multiRollButton.anchor.set(0.5, 0.5);
	multiRollButton.x = 1536;
	multiRollButton.y = 1600;
	self.addChild(multiRollButton);
	// Close button
	var closeButton = new Text2('CLOSE', {
		size: 50,
		fill: '#FF4444'
	});
	closeButton.anchor.set(0.5, 0.5);
	closeButton.x = 1024;
	closeButton.y = 2200;
	self.addChild(closeButton);
	// Roll rarities and chances
	var rollTable = [{
		type: 'warrior',
		rarity: 'common',
		chance: 0.3,
		color: 0xCCCCCC
	}, {
		type: 'archer',
		rarity: 'common',
		chance: 0.17,
		color: 0xCCCCCC
	}, {
		type: 'magic',
		rarity: 'common',
		chance: 0.10,
		color: 0xCCCCCC
	}, {
		type: 'summoner',
		rarity: 'common',
		chance: 0.12,
		color: 0xCCCCCC
	}, {
		type: 'bomber',
		rarity: 'common',
		chance: 0.11,
		color: 0xCCCCCC
	}, {
		type: 'warrior',
		rarity: 'rare',
		chance: 0.08,
		color: 0x0080FF
	}, {
		type: 'archer',
		rarity: 'rare',
		chance: 0.06,
		color: 0x0080FF
	}, {
		type: 'magic',
		rarity: 'rare',
		chance: 0.05,
		color: 0x0080FF
	}, {
		type: 'bomber',
		rarity: 'rare',
		chance: 0.04,
		color: 0x0080FF
	}, {
		type: 'healer',
		rarity: 'rare',
		chance: 0.03,
		color: 0x0080FF
	}, {
		type: 'warrior',
		rarity: 'epic',
		chance: 0.025,
		color: 0x9C27B0
	}, {
		type: 'archer',
		rarity: 'epic',
		chance: 0.02,
		color: 0x9C27B0
	}, {
		type: 'magic',
		rarity: 'epic',
		chance: 0.015,
		color: 0x9C27B0
	}, {
		type: 'bomber',
		rarity: 'epic',
		chance: 0.012,
		color: 0x9C27B0
	}, {
		type: 'healer',
		rarity: 'epic',
		chance: 0.01,
		color: 0x9C27B0
	}, {
		type: 'sniper',
		rarity: 'epic',
		chance: 0.008,
		color: 0x9C27B0
	}, {
		type: 'electric',
		rarity: 'epic',
		chance: 0.006,
		color: 0x9C27B0
	}, {
		type: 'shadow',
		rarity: 'epic',
		chance: 0.004,
		color: 0x9C27B0
	}, {
		type: 'summoner',
		rarity: 'rare',
		chance: 0.055,
		color: 0x0080FF
	}, {
		type: 'warrior',
		rarity: 'legendary',
		chance: 0.015,
		color: 0xFF8000
	}, {
		type: 'archer',
		rarity: 'legendary',
		chance: 0.01,
		color: 0xFF8000
	}, {
		type: 'sniper',
		rarity: 'legendary',
		chance: 0.008,
		color: 0xFF8000
	}, {
		type: 'magic',
		rarity: 'legendary',
		chance: 0.005,
		color: 0xFF8000
	}, {
		type: 'bomber',
		rarity: 'legendary',
		chance: 0.003,
		color: 0xFF8000
	}, {
		type: 'healer',
		rarity: 'legendary',
		chance: 0.002,
		color: 0xFF8000
	}, {
		type: 'giant',
		rarity: 'legendary',
		chance: 0.001,
		color: 0xFF8000
	}, {
		type: 'mega',
		rarity: 'legendary',
		chance: 0.0005,
		color: 0xFF8000
	}, {
		type: 'tower',
		rarity: 'legendary',
		chance: 0.0002,
		color: 0xFF8000
	}];
	self.performRoll = function () {
		var random = Math.random();
		var cumulative = 0;
		for (var i = 0; i < rollTable.length; i++) {
			cumulative += rollTable[i].chance;
			if (random <= cumulative) {
				return rollTable[i];
			}
		}
		return rollTable[0]; // Fallback to common warrior
	};
	self.showRollResult = function (results) {
		// Clear previous results
		while (resultContainer.children.length > 0) {
			resultContainer.removeChild(resultContainer.children[0]);
		}
		for (var i = 0; i < results.length; i++) {
			var result = results[i];
			var resultCard = new Container();
			// Card background
			var cardBg = LK.getAsset('inventorySlot', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			cardBg.tint = result.color;
			cardBg.scaleX = 1.5;
			cardBg.scaleY = 1.5;
			resultCard.addChild(cardBg);
			// Unit preview
			var unitAsset = result.type === 'archer' || result.type === 'sniper' ? 'ratArcher' : result.type === 'bomber' ? 'ratBomber' : result.type === 'summoner' ? 'ratSummoner' : 'ratWarrior';
			var unitPreview = LK.getAsset(unitAsset, {
				anchorX: 0.5,
				anchorY: 0.5,
				y: -20,
				scaleX: result.type === 'tower' ? 2.5 : result.type === 'mega' ? 2.0 : result.type === 'giant' ? 1.5 : result.type === 'electric' ? 1.2 : result.type === 'shadow' ? 1.1 : result.type === 'summoner' ? 1.3 : 1.0,
				scaleY: result.type === 'tower' ? 2.5 : result.type === 'mega' ? 2.0 : result.type === 'giant' ? 1.5 : result.type === 'electric' ? 1.2 : result.type === 'shadow' ? 1.1 : result.type === 'summoner' ? 1.3 : 1.0
			});
			// Apply type-specific tints
			if (result.type === 'magic') {
				unitPreview.tint = 0x9932CC; // Purple
			} else if (result.type === 'sniper') {
				unitPreview.tint = 0x8B4513; // Brown
			} else if (result.type === 'bomber') {
				unitPreview.tint = 0xFF6347; // Red-orange
			} else if (result.type === 'healer') {
				unitPreview.tint = 0x00FF7F; // Spring green
			} else if (result.type === 'giant') {
				unitPreview.tint = 0x8B0000; // Dark red
			} else if (result.type === 'mega') {
				unitPreview.tint = 0x4B0082; // Indigo
			} else if (result.type === 'tower') {
				unitPreview.tint = 0x2F4F4F; // Dark slate gray
			} else if (result.type === 'electric') {
				unitPreview.tint = 0x00FFFF; // Cyan
			} else if (result.type === 'shadow') {
				unitPreview.tint = 0x4B0082; // Dark purple
				unitPreview.alpha = 0.7; // Semi-transparent
			} else if (result.type === 'summoner') {
				unitPreview.tint = 0x4B0082; // Dark purple
			}
			resultCard.addChild(unitPreview);
			// Rarity text
			var rarityText = new Text2(result.rarity.toUpperCase(), {
				size: 25,
				fill: '#FFFFFF'
			});
			rarityText.anchor.set(0.5, 0.5);
			rarityText.y = 60;
			resultCard.addChild(rarityText);
			// Type text
			var typeText = new Text2(result.type.toUpperCase(), {
				size: 20,
				fill: '#FFFFFF'
			});
			typeText.anchor.set(0.5, 0.5);
			typeText.y = 85;
			resultCard.addChild(typeText);
			// Position cards
			if (results.length === 1) {
				resultCard.x = 0;
			} else {
				resultCard.x = (i - 2) * 200;
			}
			resultCard.y = 0;
			// Scale animation
			resultCard.scaleX = 0;
			resultCard.scaleY = 0;
			tween(resultCard, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 500
			});
			resultContainer.addChild(resultCard);
			// Add to player inventory based on rarity
			var ratCost = result.type === 'warrior' ? 50 : 75;
			if (result.rarity === 'rare') {
				ratCost = Math.floor(ratCost * 0.8); // 20% discount for rare
			} else if (result.rarity === 'epic') {
				ratCost = Math.floor(ratCost * 0.7); // 30% discount for epic
			} else if (result.rarity === 'legendary') {
				ratCost = Math.floor(ratCost * 0.6); // 40% discount for legendary
			}
			// Add unit to collected units
			var collectedUnit = {
				type: result.type,
				rarity: result.rarity,
				color: result.color,
				cost: ratCost
			};
			collectedUnits.push(collectedUnit);
			// Give bonus cheese for higher rarities
			if (result.rarity === 'rare') {
				cheesePoints += 15;
			} else if (result.rarity === 'epic') {
				cheesePoints += 35;
			} else if (result.rarity === 'legendary') {
				cheesePoints += 50;
			}
		}
		updateUI();
	};
	singleRollButton.down = function () {
		if (cheesePoints >= 25) {
			cheesePoints -= 25;
			var result = self.performRoll();
			self.showRollResult([result]);
			LK.effects.flashScreen(0x00FF00, 200);
		}
	};
	multiRollButton.down = function () {
		if (cheesePoints >= 100) {
			cheesePoints -= 100;
			var results = [];
			for (var i = 0; i < 5; i++) {
				results.push(self.performRoll());
			}
			self.showRollResult(results);
			LK.effects.flashScreen(0x0080FF, 300);
		}
	};
	closeButton.down = function () {
		self.destroy();
		rollScreen = null;
	};
	return self;
});
var SummoningZone = Container.expand(function () {
	var self = Container.call(this);
	var zoneGraphics = self.attachAsset('summonZone', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	zoneGraphics.alpha = 0.3;
	var zoneText = new Text2('GACHA ROLLS', {
		size: 40,
		fill: '#FFFFFF'
	});
	zoneText.anchor.set(0.5, 0.5);
	zoneText.y = -30;
	self.addChild(zoneText);
	var instructionText = new Text2('Tap to open roll screen', {
		size: 25,
		fill: '#CCCCCC'
	});
	instructionText.anchor.set(0.5, 0.5);
	instructionText.y = 0;
	self.addChild(instructionText);
	var instructionText2 = new Text2('Place rats on green tiles anywhere', {
		size: 25,
		fill: '#90EE90'
	});
	instructionText2.anchor.set(0.5, 0.5);
	instructionText2.y = 30;
	self.addChild(instructionText2);
	// Summon button for gacha rolls
	var summonButton = new Text2('OPEN ROLLS', {
		size: 35,
		fill: '#FFD700'
	});
	summonButton.anchor.set(0.5, 0.5);
	summonButton.y = 60;
	self.addChild(summonButton);
	self.down = function (x, y, obj) {
		if (gameStarted && !upgradeMode) {
			// Open roll screen for gacha summons
			if (!rollScreen) {
				rollScreen = new RollScreen();
				game.addChild(rollScreen);
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Game state
var gameStarted = false;
var mainMenu = null;
// Center map offset for mobile display
var mapOffsetX = (2048 - 1200) / 2;
var mapOffsetY = 200;
var gamePath = [{
	x: 40 + mapOffsetX,
	y: 400 + mapOffsetY
}, {
	x: 200 + mapOffsetX,
	y: 400 + mapOffsetY
}, {
	x: 200 + mapOffsetX,
	y: 200 + mapOffsetY
}, {
	x: 400 + mapOffsetX,
	y: 200 + mapOffsetY
}, {
	x: 400 + mapOffsetX,
	y: 500 + mapOffsetY
}, {
	x: 600 + mapOffsetX,
	y: 500 + mapOffsetY
}, {
	x: 600 + mapOffsetX,
	y: 300 + mapOffsetY
}, {
	x: 800 + mapOffsetX,
	y: 300 + mapOffsetY
}, {
	x: 800 + mapOffsetX,
	y: 600 + mapOffsetY
}, {
	x: 1000 + mapOffsetX,
	y: 600 + mapOffsetY
}, {
	x: 1000 + mapOffsetX,
	y: 400 + mapOffsetY
}, {
	x: 1200 + mapOffsetX,
	y: 400 + mapOffsetY
}];
var placementTiles = [{
	x: 280 + mapOffsetX,
	y: 280 + mapOffsetY
}, {
	x: 520 + mapOffsetX,
	y: 380 + mapOffsetY
}, {
	x: 680 + mapOffsetX,
	y: 380 + mapOffsetY
}, {
	x: 720 + mapOffsetX,
	y: 200 + mapOffsetY
}, {
	x: 880 + mapOffsetX,
	y: 200 + mapOffsetY
}, {
	x: 880 + mapOffsetX,
	y: 500 + mapOffsetY
}, {
	x: 1080 + mapOffsetX,
	y: 500 + mapOffsetY
}, {
	x: 280 + mapOffsetX,
	y: 120 + mapOffsetY
}, {
	x: 680 + mapOffsetX,
	y: 580 + mapOffsetY
}, {
	x: 360 + mapOffsetX,
	y: 160 + mapOffsetY
}, {
	x: 760 + mapOffsetX,
	y: 160 + mapOffsetY
}, {
	x: 1160 + mapOffsetX,
	y: 160 + mapOffsetY
}];
var cats = [];
var rats = [];
var bullets = [];
var cheesePoints = 150;
var lives = 5;
var currentWave = 1;
var waveInProgress = false;
var catsToSpawn = 0;
var spawnTimer = 0;
var selectedRatType = 'warrior';
var selectedRat = null;
var upgradeMode = false;
// Initialize game variables
var pathIndicators = [];
var placementIndicators = [];
var cheese = null;
var cheeseText = null;
var livesText = null;
var waveText = null;
var startWaveButton = null;
var ratTypeButton = null;
var upgradeButton = null;
var upgradeInfoText = null;
var summoningZone = null;
var inventorySlots = [];
var rollScreen = null;
// Collected units from rolls
var collectedUnits = [];
var selectedCollectedUnit = null;
function startWave() {
	if (!waveInProgress) {
		waveInProgress = true;
		catsToSpawn = 3 + currentWave * 2;
		spawnTimer = 0;
		startWaveButton.setText('WAVE IN PROGRESS');
		startWaveButton.tint = 0xFF0000;
	}
}
function spawnCat() {
	var cat;
	var random = Math.random();
	// Spawn boss cats in later waves
	if (currentWave >= 10 && random < 0.1) {
		cat = new CatSummoner();
	} else if (currentWave >= 8 && random < 0.15) {
		cat = new FastCatBoss();
	} else if (currentWave >= 5 && random < 0.2) {
		cat = new CatBoss();
	} else if (random < 0.3 && currentWave > 2) {
		cat = new FastCat();
	} else {
		cat = new Cat();
	}
	cat.x = gamePath[0].x;
	cat.y = gamePath[0].y;
	cat.health += currentWave * 10;
	cat.maxHealth = cat.health;
	cats.push(cat);
	game.addChild(cat);
	catsToSpawn--;
}
var collectedUnitSlots = [];
function updateCollectedUnitsDisplay() {
	// Remove existing collected unit slots
	for (var i = 0; i < collectedUnitSlots.length; i++) {
		collectedUnitSlots[i].destroy();
	}
	collectedUnitSlots = [];
	// Create new slots for collected units
	for (var i = 0; i < collectedUnits.length && i < 8; i++) {
		var slot = new CollectedUnitSlot(collectedUnits[i], i);
		slot.x = 500 + i % 4 * 100;
		slot.y = 2400 + Math.floor(i / 4) * 100;
		collectedUnitSlots.push(slot);
		game.addChild(slot);
		// Select if this is the selected unit
		if (selectedCollectedUnit === collectedUnits[i]) {
			slot.setSelected(true);
		}
	}
}
function updateUI() {
	if (!cheeseText) return; // Don't update UI if elements aren't initialized yet
	cheeseText.setText('Cheese: ' + cheesePoints);
	livesText.setText('Lives: ' + lives);
	waveText.setText('Wave: ' + currentWave);
	if (selectedCollectedUnit) {
		ratTypeButton.setText('COLLECTED: ' + selectedCollectedUnit.type.toUpperCase() + ' (' + selectedCollectedUnit.rarity + ')');
	} else if (selectedRatType) {
		var ratCost = selectedRatType === 'warrior' ? 50 : 75;
		ratTypeButton.setText('RAT: ' + selectedRatType.toUpperCase() + ' (' + ratCost + ')');
	} else {
		ratTypeButton.setText('SELECT A UNIT');
	}
	upgradeButton.setText('UPGRADE MODE: ' + (upgradeMode ? 'ON' : 'OFF'));
	upgradeButton.tint = upgradeMode ? 0x00FF00 : 0x9932CC;
	if (selectedRat && upgradeMode) {
		var upgradeCost = selectedRat.getUpgradeCost();
		var canAfford = cheesePoints >= upgradeCost;
		var canUpgrade = selectedRat.canUpgrade();
		if (canUpgrade) {
			upgradeInfoText.setText('UPGRADE (' + upgradeCost + ') - DMG:' + Math.floor(selectedRat.damage * 1.5) + ' RNG:' + Math.floor(selectedRat.range * 1.25));
			upgradeInfoText.tint = canAfford ? 0x00FF00 : 0xFF0000;
		} else {
			upgradeInfoText.setText('MAX LEVEL REACHED');
			upgradeInfoText.tint = 0xFFFF00;
		}
	} else {
		upgradeInfoText.setText(upgradeMode ? 'SELECT A RAT TO UPGRADE' : '');
		upgradeInfoText.tint = 0xFFFFFF;
	}
	// Update inventory slots
	if (inventorySlots && inventorySlots.length > 0) {
		for (var i = 0; i < inventorySlots.length; i++) {
			inventorySlots[i].updateDisplay();
		}
	}
	// Update collected units display
	updateCollectedUnitsDisplay();
}
function canPlaceRat(x, y) {
	var placementDistanceSquared = 120 * 120; // 14400 - even more forgiving radius for easier targeting
	for (var i = 0; i < placementTiles.length; i++) {
		var tile = placementTiles[i];
		var dx = x - tile.x;
		var dy = y - tile.y;
		if (dx * dx + dy * dy < placementDistanceSquared) {
			// Check if tile is already occupied
			for (var j = 0; j < rats.length; j++) {
				var ratDx = rats[j].x - tile.x;
				var ratDy = rats[j].y - tile.y;
				if (ratDx * ratDx + ratDy * ratDy < 50 * 50) {
					// Slightly reduced occupied check radius for tighter packing
					return false;
				}
			}
			return true;
		}
	}
	return false;
}
function initializeGame() {
	// Create visual path indicators to show where cats walk
	pathIndicators = [];
	for (var i = 0; i < gamePath.length; i++) {
		var pathPoint = gamePath[i];
		var indicator = LK.getAsset('pathIndicator', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: pathPoint.x,
			y: pathPoint.y
		});
		indicator.alpha = 0.8;
		pathIndicators.push(indicator);
		game.addChild(indicator);
		// Add directional arrows between path points
		if (i < gamePath.length - 1) {
			var nextPoint = gamePath[i + 1];
			var arrow = LK.getAsset('pathArrow', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: (pathPoint.x + nextPoint.x) / 2,
				y: (pathPoint.y + nextPoint.y) / 2
			});
			// Rotate arrow to point in direction of movement
			var dx = nextPoint.x - pathPoint.x;
			var dy = nextPoint.y - pathPoint.y;
			arrow.rotation = Math.atan2(dy, dx);
			arrow.alpha = 0.7;
			pathIndicators.push(arrow);
			game.addChild(arrow);
		}
	}
	// Create visual indicators for placement tiles
	placementIndicators = [];
	for (var i = 0; i < placementTiles.length; i++) {
		var tile = placementTiles[i];
		var indicator = LK.getAsset('summonZone', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 0.6,
			scaleY: 0.6,
			x: tile.x,
			y: tile.y
		});
		indicator.alpha = 0.6;
		indicator.tint = 0x90EE90;
		placementIndicators.push(indicator);
		game.addChild(indicator);
	}
	// Create cheese at the end
	cheese = LK.getAsset('cheese', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: gamePath[gamePath.length - 1].x,
		y: gamePath[gamePath.length - 1].y
	});
	game.addChild(cheese);
	// UI Elements
	cheeseText = new Text2('Cheese: ' + cheesePoints, {
		size: 60,
		fill: '#FFD700'
	});
	cheeseText.anchor.set(0, 0);
	cheeseText.x = 120;
	LK.gui.topLeft.addChild(cheeseText);
	livesText = new Text2('Lives: ' + lives, {
		size: 60,
		fill: '#FF6347'
	});
	livesText.anchor.set(0, 0);
	livesText.x = 120;
	livesText.y = 80;
	LK.gui.topLeft.addChild(livesText);
	waveText = new Text2('Wave: ' + currentWave, {
		size: 60,
		fill: '#87CEEB'
	});
	waveText.anchor.set(0, 0);
	waveText.x = 120;
	waveText.y = 160;
	LK.gui.topLeft.addChild(waveText);
	startWaveButton = new Text2('START WAVE', {
		size: 70,
		fill: '#00FF00'
	});
	startWaveButton.anchor.set(0.5, 0.5);
	startWaveButton.down = function () {
		startWave();
	};
	LK.gui.bottom.addChild(startWaveButton);
	ratTypeButton = new Text2('RAT: WARRIOR (50)', {
		size: 55,
		fill: '#8B4513'
	});
	ratTypeButton.anchor.set(0.5, 0.5);
	ratTypeButton.y = -120;
	ratTypeButton.down = function () {
		// Cycle through rat types and update selection
		if (selectedRatType === 'warrior') {
			selectedRatType = 'archer';
			selectedCollectedUnit = null;
			// Update inventory slots
			for (var i = 0; i < inventorySlots.length; i++) {
				inventorySlots[i].setSelected(inventorySlots[i].ratType === 'archer');
			}
		} else {
			selectedRatType = 'warrior';
			selectedCollectedUnit = null;
			// Update inventory slots
			for (var i = 0; i < inventorySlots.length; i++) {
				inventorySlots[i].setSelected(inventorySlots[i].ratType === 'warrior');
			}
		}
		updateCollectedUnitsDisplay();
		updateUI();
	};
	LK.gui.bottom.addChild(ratTypeButton);
	upgradeButton = new Text2('UPGRADE MODE: OFF', {
		size: 50,
		fill: '#9932CC'
	});
	upgradeButton.anchor.set(0.5, 0.5);
	upgradeButton.y = -200;
	upgradeButton.down = function () {
		upgradeMode = !upgradeMode;
		selectedRat = null;
		updateUI();
	};
	LK.gui.bottom.addChild(upgradeButton);
	upgradeInfoText = new Text2('', {
		size: 45,
		fill: '#FFFFFF'
	});
	upgradeInfoText.anchor.set(0.5, 0.5);
	upgradeInfoText.y = -280;
	LK.gui.bottom.addChild(upgradeInfoText);
	// Create summoning zone
	summoningZone = new SummoningZone();
	summoningZone.x = 1024;
	summoningZone.y = 1800;
	game.addChild(summoningZone);
	// Create inventory slots
	inventorySlots = [];
	var warriorSlot = new InventorySlot('warrior', 50);
	warriorSlot.x = 200;
	warriorSlot.y = 2400;
	inventorySlots.push(warriorSlot);
	game.addChild(warriorSlot);
	var archerSlot = new InventorySlot('archer', 75);
	archerSlot.x = 350;
	archerSlot.y = 2400;
	inventorySlots.push(archerSlot);
	game.addChild(archerSlot);
	// Set initial selection - auto-select warrior for immediate placement
	selectedRatType = 'warrior';
	selectedCollectedUnit = null;
	warriorSlot.setSelected(true);
	// Show helpful message
	var helpText = new Text2('Tap anywhere on green tiles to place rats!', {
		size: 40,
		fill: '#90EE90'
	});
	helpText.anchor.set(0.5, 0.5);
	helpText.x = 1024;
	helpText.y = 1000;
	game.addChild(helpText);
	// Fade out help text after 5 seconds
	LK.setTimeout(function () {
		if (helpText && helpText.parent) {
			tween(helpText, {
				alpha: 0
			}, {
				duration: 1000
			});
		}
	}, 5000);
	updateUI();
}
function placeRat(x, y) {
	var ratCost = selectedRatType === 'warrior' ? 50 : 75;
	if (cheesePoints >= ratCost && canPlaceRat(x, y)) {
		var rat;
		if (selectedRatType === 'warrior') {
			rat = new Rat();
		} else {
			rat = new ArcherRat();
		}
		// Snap to nearest placement tile
		var nearestTile = null;
		var nearestDistanceSquared = Infinity;
		for (var i = 0; i < placementTiles.length; i++) {
			var tile = placementTiles[i];
			var dx = x - tile.x;
			var dy = y - tile.y;
			var distanceSquared = dx * dx + dy * dy;
			if (distanceSquared < nearestDistanceSquared) {
				nearestDistanceSquared = distanceSquared;
				nearestTile = tile;
			}
		}
		rat.x = nearestTile.x;
		rat.y = nearestTile.y;
		rats.push(rat);
		game.addChild(rat);
		cheesePoints -= ratCost;
		// Update placement indicator for this tile
		for (var k = 0; k < placementTiles.length; k++) {
			if (placementTiles[k].x === nearestTile.x && placementTiles[k].y === nearestTile.y) {
				placementIndicators[k].tint = 0xFF6347; // Red tint to show occupied
				placementIndicators[k].alpha = 0.2; // Make it more transparent
				break;
			}
		}
		LK.getSound('ratPlace').play();
		updateUI();
	}
}
// Show main menu initially
mainMenu = new MainMenu();
game.addChild(mainMenu);
game.down = function (x, y, obj) {
	if (!gameStarted) return;
	if (upgradeMode) {
		// Check if clicking on a rat for upgrade
		var clickedRat = null;
		var clickDistanceSquared = 60 * 60; // 3600
		for (var i = 0; i < rats.length; i++) {
			var rat = rats[i];
			var dx = x - rat.x;
			var dy = y - rat.y;
			if (dx * dx + dy * dy < clickDistanceSquared) {
				clickedRat = rat;
				break;
			}
		}
		if (clickedRat) {
			if (selectedRat === clickedRat) {
				// Clicking same rat again - perform upgrade
				if (clickedRat.canUpgrade() && cheesePoints >= clickedRat.getUpgradeCost()) {
					cheesePoints -= clickedRat.getUpgradeCost();
					clickedRat.upgrade();
					LK.effects.flashObject(clickedRat, 0x00FF00, 500);
					updateUI();
				}
			} else {
				// Select this rat
				// Hide range indicator for previously selected rat
				if (selectedRat) {
					selectedRat.hideRangeIndicator();
				}
				selectedRat = clickedRat;
				// Remove selection indicator from all rats
				for (var j = 0; j < rats.length; j++) {
					rats[j].children[0].alpha = 1.0;
					rats[j].hideRangeIndicator();
				}
				// Add selection indicator and show range
				selectedRat.children[0].alpha = 0.7;
				selectedRat.showRangeIndicator();
				updateUI();
			}
		} else {
			// Clicked empty space - deselect
			if (selectedRat) {
				selectedRat.hideRangeIndicator();
			}
			selectedRat = null;
			for (var j = 0; j < rats.length; j++) {
				rats[j].children[0].alpha = 1.0;
				rats[j].hideRangeIndicator();
			}
			updateUI();
		}
	} else {
		// Try to place a rat if we have one selected and can place it
		if (selectedCollectedUnit && canPlaceRat(x, y)) {
			// Place collected unit
			var rat;
			if (selectedCollectedUnit.type === 'warrior') {
				rat = new Rat();
			} else if (selectedCollectedUnit.type === 'archer') {
				rat = new ArcherRat();
			} else if (selectedCollectedUnit.type === 'magic') {
				rat = new MagicRat();
			} else if (selectedCollectedUnit.type === 'sniper') {
				rat = new SniperRat();
			} else if (selectedCollectedUnit.type === 'bomber') {
				rat = new BomberRat();
			} else if (selectedCollectedUnit.type === 'healer') {
				rat = new HealerRat();
			} else if (selectedCollectedUnit.type === 'giant') {
				rat = new GiantRat();
			} else if (selectedCollectedUnit.type === 'mega') {
				rat = new MegaRat();
			} else if (selectedCollectedUnit.type === 'tower') {
				rat = new TowerRat();
			} else if (selectedCollectedUnit.type === 'electric') {
				rat = new ElectricRat();
			} else if (selectedCollectedUnit.type === 'shadow') {
				rat = new ShadowRat();
			} else if (selectedCollectedUnit.type === 'summoner') {
				rat = new SummonerRat();
			} else {
				// Default fallback for any unhandled types
				rat = new Rat();
			}
			// Apply rarity bonuses
			if (selectedCollectedUnit.rarity === 'rare') {
				rat.damage = Math.floor(rat.damage * 1.3);
				rat.range = Math.floor(rat.range * 1.2);
				rat.children[0].tint = 0x0080FF;
			} else if (selectedCollectedUnit.rarity === 'epic') {
				rat.damage = Math.floor(rat.damage * 1.5);
				rat.range = Math.floor(rat.range * 1.35);
				rat.children[0].tint = 0x9C27B0;
			} else if (selectedCollectedUnit.rarity === 'legendary') {
				rat.damage = Math.floor(rat.damage * 1.8);
				rat.range = Math.floor(rat.range * 1.5);
				rat.children[0].tint = 0xFF8000;
			}
			// Snap to nearest placement tile
			var nearestTile = null;
			var nearestDistanceSquared = Infinity;
			for (var k = 0; k < placementTiles.length; k++) {
				var tile = placementTiles[k];
				var dx = x - tile.x;
				var dy = y - tile.y;
				var distanceSquared = dx * dx + dy * dy;
				if (distanceSquared < nearestDistanceSquared) {
					nearestDistanceSquared = distanceSquared;
					nearestTile = tile;
				}
			}
			rat.x = nearestTile.x;
			rat.y = nearestTile.y;
			rats.push(rat);
			game.addChild(rat);
			// Remove unit from collected units
			for (var i = 0; i < collectedUnits.length; i++) {
				if (collectedUnits[i] === selectedCollectedUnit) {
					collectedUnits.splice(i, 1);
					break;
				}
			}
			selectedCollectedUnit = null;
			LK.getSound('ratPlace').play();
			updateUI();
		} else if (selectedRatType && canPlaceRat(x, y)) {
			// Place basic rat
			var ratCost = selectedRatType === 'warrior' ? 50 : 75;
			if (cheesePoints >= ratCost) {
				var rat;
				if (selectedRatType === 'warrior') {
					rat = new Rat();
				} else {
					rat = new ArcherRat();
				}
				// Snap to nearest placement tile
				var nearestTile = null;
				var nearestDistanceSquared = Infinity;
				for (var k = 0; k < placementTiles.length; k++) {
					var tile = placementTiles[k];
					var dx = x - tile.x;
					var dy = y - tile.y;
					var distanceSquared = dx * dx + dy * dy;
					if (distanceSquared < nearestDistanceSquared) {
						nearestDistanceSquared = distanceSquared;
						nearestTile = tile;
					}
				}
				rat.x = nearestTile.x;
				rat.y = nearestTile.y;
				rats.push(rat);
				game.addChild(rat);
				cheesePoints -= ratCost;
				// Update placement indicator for this tile
				for (var k = 0; k < placementTiles.length; k++) {
					if (placementTiles[k].x === nearestTile.x && placementTiles[k].y === nearestTile.y) {
						placementIndicators[k].tint = 0xFF6347; // Red tint to show occupied
						placementIndicators[k].alpha = 0.2; // Make it more transparent
						break;
					}
				}
				LK.getSound('ratPlace').play();
				// Show cost feedback
				var costText = new Text2('-' + ratCost, {
					size: 50,
					fill: '#FFD700'
				});
				costText.anchor.set(0.5, 0.5);
				costText.x = nearestTile.x;
				costText.y = nearestTile.y - 80;
				game.addChild(costText);
				// Animate cost text
				tween(costText, {
					y: nearestTile.y - 120,
					alpha: 0
				}, {
					duration: 1000
				});
				// Remove cost text after animation
				LK.setTimeout(function () {
					if (costText && costText.parent) {
						costText.destroy();
					}
				}, 1000);
				updateUI();
			}
		}
	}
};
game.update = function () {
	if (!gameStarted) return;
	// Spawn cats during wave
	if (waveInProgress && catsToSpawn > 0) {
		spawnTimer++;
		if (spawnTimer >= 90) {
			spawnCat();
			spawnTimer = 0;
		}
	}
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		if (bullet.reachedTarget) {
			// Check collision with cats using squared distance (avoid sqrt)
			var collisionDistanceSquared = 45 * 45; // 2025
			if (bullet.isSplash) {
				// Splash damage affects all cats in area
				var splashDistanceSquared = 80 * 80; // 6400
				for (var j = cats.length - 1; j >= 0; j--) {
					var cat = cats[j];
					var dx = bullet.x - cat.x;
					var dy = bullet.y - cat.y;
					if (dx * dx + dy * dy < splashDistanceSquared) {
						cat.takeDamage(bullet.damage);
					}
				}
				// Visual splash effect
				LK.effects.flashScreen(0xFFA500, 200);
			} else {
				// Normal single target damage
				for (var j = cats.length - 1; j >= 0; j--) {
					var cat = cats[j];
					var dx = bullet.x - cat.x;
					var dy = bullet.y - cat.y;
					if (dx * dx + dy * dy < collisionDistanceSquared) {
						cat.takeDamage(bullet.damage);
						break;
					}
				}
			}
			bullet.destroy();
			bullets.splice(i, 1);
		}
	}
	// Update cats and let them attack giant rats
	for (var i = cats.length - 1; i >= 0; i--) {
		var cat = cats[i];
		if (cat.isDead) {
			cheesePoints += cat.cheeseValue;
			cat.destroy();
			cats.splice(i, 1);
			LK.getSound('catDefeat').play();
			updateUI();
		} else if (cat.reachedCheese) {
			lives--;
			cat.destroy();
			cats.splice(i, 1);
			updateUI();
			if (lives <= 0) {
				LK.showGameOver();
			}
		} else {
			// Let cats attack giant, mega, tower and zombie rats that are close
			for (var j = 0; j < rats.length; j++) {
				var rat = rats[j];
				if ((rat.ratType === 'giant' || rat.ratType === 'mega' || rat.ratType === 'tower' || rat.ratType === 'zombie') && rat.health && rat.health > 0) {
					var dx = cat.x - rat.x;
					var dy = cat.y - rat.y;
					var distanceSquared = dx * dx + dy * dy;
					if (distanceSquared < 80 * 80 && LK.ticks % 60 === 0) {
						rat.takeDamage(rat.ratType === 'zombie' ? 15 : 10);
						LK.effects.flashObject(rat, 0xFF0000, 200);
					}
				}
			}
			// Check collision between zombie rats and cats
			for (var j = 0; j < rats.length; j++) {
				var rat = rats[j];
				if (rat.ratType === 'zombie' && rat.health && rat.health > 0) {
					var dx = cat.x - rat.x;
					var dy = cat.y - rat.y;
					var distanceSquared = dx * dx + dy * dy;
					if (distanceSquared < 60 * 60 && LK.ticks % 30 === 0) {
						// Zombie rat damages cat
						cat.takeDamage(15);
						// Cat damages zombie rat
						rat.takeDamage(10);
						LK.effects.flashObject(cat, 0xFF0000, 200);
						LK.effects.flashObject(rat, 0xFF0000, 200);
					}
				}
			}
		}
	}
	// Update rats and remove dead giant/mega/tower/zombie rats
	for (var i = rats.length - 1; i >= 0; i--) {
		var rat = rats[i];
		if ((rat.ratType === 'giant' || rat.ratType === 'mega' || rat.ratType === 'tower' || rat.ratType === 'zombie') && rat.isDead) {
			rat.destroy();
			rats.splice(i, 1);
			// Update placement indicator for this tile
			for (var k = 0; k < placementTiles.length; k++) {
				var tile = placementTiles[k];
				var dx = rat.x - tile.x;
				var dy = rat.y - tile.y;
				if (dx * dx + dy * dy < 50 * 50) {
					placementIndicators[k].tint = 0x90EE90;
					placementIndicators[k].alpha = 0.6;
					break;
				}
			}
		}
	}
	// Check if wave is complete
	if (waveInProgress && catsToSpawn === 0 && cats.length === 0) {
		waveInProgress = false;
		currentWave++;
		if (currentWave > 10) {
			LK.showYouWin();
		} else {
			cheesePoints += 25;
			startWaveButton.setText('START WAVE');
			startWaveButton.tint = 0x00FF00;
			updateUI();
		}
	}
};
updateUI();