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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function (startX, startY, targetEnemy, damage, speed) {
	var self = Container.call(this);
	self.targetEnemy = targetEnemy;
	self.damage = damage || 10;
	self.speed = speed || 5;
	self.x = startX;
	self.y = startY;
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Skip bullet update when game is paused (gameSpeed = 0)
		if (gameSpeed === 0) {
			return;
		}
		if (!self.targetEnemy || !self.targetEnemy.parent) {
			self.destroy();
			return;
		}
		var dx = self.targetEnemy.x - self.x;
		var dy = self.targetEnemy.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < self.speed) {
			// Apply damage to target enemy
			var actualDamage = self.damage;
			// Artillery towers deal 40% of enemy's current health as damage
			if (self.type === 'splash') {
				actualDamage = Math.ceil(self.targetEnemy.health * 0.4);
				// AntiAir bullets deal half damage to flying enemies
				if (self.targetEnemy.isFlying) {
					actualDamage = actualDamage * 0.5;
				}
			}
			// Immune enemies take 10% more damage from all bullets
			if (self.targetEnemy.isImmune) {
				actualDamage = actualDamage * 1.1;
			}
			// Immune enemies now take damage from all bullet types
			self.targetEnemy.health -= actualDamage;
			if (self.targetEnemy.health <= 0) {
				self.targetEnemy.health = 0;
			} else {
				self.targetEnemy.healthBar.width = self.targetEnemy.health / self.targetEnemy.maxHealth * 70;
			}
			// Apply special effects based on bullet type
			if (self.type === 'splash') {
				// Create visual splash effect
				var splashEffect = new EffectIndicator(self.targetEnemy.x, self.targetEnemy.y, 'splash');
				game.addChild(splashEffect);
				// Splash damage to nearby enemies
				var splashRadius = CELL_SIZE * 1.5;
				for (var i = 0; i < enemies.length; i++) {
					var otherEnemy = enemies[i];
					if (otherEnemy !== self.targetEnemy) {
						var splashDx = otherEnemy.x - self.targetEnemy.x;
						var splashDy = otherEnemy.y - self.targetEnemy.y;
						var splashDistance = Math.sqrt(splashDx * splashDx + splashDy * splashDy);
						if (splashDistance <= splashRadius) {
							// Apply splash damage (50% of original damage or 20% of enemy health for Artillery)
							var splashDamage;
							if (self.type === 'splash') {
								splashDamage = Math.ceil(otherEnemy.health * 0.2); // 20% of current health for splash
							} else {
								splashDamage = self.damage * 0.5;
							}
							// Immune enemies take 10% more splash damage
							if (otherEnemy.isImmune) {
								splashDamage = splashDamage * 1.1;
							}
							// Immune enemies now take splash damage from all bullet types
							otherEnemy.health -= splashDamage;
							if (otherEnemy.health <= 0) {
								otherEnemy.health = 0;
							} else {
								otherEnemy.healthBar.width = otherEnemy.health / otherEnemy.maxHealth * 70;
							}
						}
					}
				}
			} else if (self.type === 'poison') {
				// Prevent poison effect on immune enemies
				if (!self.targetEnemy.isImmune) {
					// Create visual poison effect
					var poisonEffect = new EffectIndicator(self.targetEnemy.x, self.targetEnemy.y, 'poison');
					game.addChild(poisonEffect);
					// Apply poison effect
					self.targetEnemy.poisoned = true;
					self.targetEnemy.poisonDamage = self.damage * 0.2; // 20% of original damage per tick
					self.targetEnemy.poisonDuration = 300; // 5 seconds at 60 FPS
				}
			} else if (self.type === 'sniper') {
				// Create visual critical hit effect for sniper
				var sniperEffect = new EffectIndicator(self.targetEnemy.x, self.targetEnemy.y, 'sniper');
				game.addChild(sniperEffect);
			}
			self.destroy();
		} else {
			var angle = Math.atan2(dy, dx);
			self.x += Math.cos(angle) * self.speed;
			self.y += Math.sin(angle) * self.speed;
		}
	};
	return self;
});
var DebugCell = Container.expand(function () {
	var self = Container.call(this);
	var cellGraphics = self.attachAsset('cell', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	cellGraphics.tint = Math.random() * 0xffffff;
	var debugArrows = [];
	var numberLabel = new Text2('0', {
		size: 30,
		fill: 0xFFFFFF,
		weight: 800
	});
	numberLabel.anchor.set(.5, .5);
	numberLabel.visible = false; // Hide numbers in battlefield
	self.addChild(numberLabel);
	self.update = function () {};
	self.down = function () {
		return;
		if (self.cell.type == 0 || self.cell.type == 1) {
			self.cell.type = self.cell.type == 1 ? 0 : 1;
			if (grid.pathFind()) {
				self.cell.type = self.cell.type == 1 ? 0 : 1;
				grid.pathFind();
				var notification = game.addChild(new Notification("Path is blocked!"));
				notification.x = 2048 / 2;
				notification.y = grid.height - 50;
			}
			grid.renderDebug();
		}
	};
	self.removeArrows = function () {
		while (debugArrows.length) {
			self.removeChild(debugArrows.pop());
		}
	};
	self.render = function (data) {
		switch (data.type) {
			case 0:
			case 2:
				{
					if (data.pathId != pathId) {
						self.removeArrows();
						numberLabel.setText("-");
						cellGraphics.tint = 0x880000;
						return;
					}
					numberLabel.visible = false; // Hide numbers in battlefield
					var tint = Math.floor(data.score / maxScore * 0x88);
					var towerInRangeHighlight = false;
					if (selectedTower && data.towersInRange && data.towersInRange.indexOf(selectedTower) !== -1) {
						towerInRangeHighlight = true;
						cellGraphics.tint = 0x0088ff;
					} else {
						cellGraphics.tint = 0x88 - tint << 8 | tint;
					}
					// Remove arrow rendering - no longer display arrows
					break;
				}
			case 1:
				{
					self.removeArrows();
					cellGraphics.tint = 0xaaaaaa;
					numberLabel.visible = false;
					break;
				}
			case 3:
				{
					self.removeArrows();
					cellGraphics.tint = 0x008800;
					numberLabel.visible = false;
					break;
				}
			case 4:
				{
					self.removeArrows();
					cellGraphics.tint = 0x000000; // Black color for castle walls
					numberLabel.visible = false;
					break;
				}
		}
		// numberLabel.setText(Math.floor(data.score / 1000) / 10); // Removed number display
	};
});
// This update method was incorrectly placed here and should be removed
var EffectIndicator = Container.expand(function (x, y, type) {
	var self = Container.call(this);
	self.x = x;
	self.y = y;
	var effectGraphics = self.attachAsset('rangeCircle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	effectGraphics.blendMode = 1;
	switch (type) {
		case 'splash':
			effectGraphics.tint = 0x33CC00;
			effectGraphics.width = effectGraphics.height = CELL_SIZE * 1.5;
			break;
		case 'slow':
			effectGraphics.tint = 0x9900FF;
			effectGraphics.width = effectGraphics.height = CELL_SIZE;
			break;
		case 'poison':
			effectGraphics.tint = 0x00FFAA;
			effectGraphics.width = effectGraphics.height = CELL_SIZE;
			break;
		case 'sniper':
			effectGraphics.tint = 0xFF5500;
			effectGraphics.width = effectGraphics.height = CELL_SIZE;
			break;
	}
	effectGraphics.alpha = 0.7;
	self.alpha = 0;
	// Animate the effect
	tween(self, {
		alpha: 0.8,
		scaleX: 1.5,
		scaleY: 1.5
	}, {
		duration: 200,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			tween(self, {
				alpha: 0,
				scaleX: 2,
				scaleY: 2
			}, {
				duration: 300,
				easing: tween.easeIn,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	});
	return self;
});
// Base enemy class for common functionality
var Enemy = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || 'normal';
	self.speed = .01;
	self.cellX = 0;
	self.cellY = 0;
	self.currentCellX = 0;
	self.currentCellY = 0;
	self.currentTarget = undefined;
	self.maxHealth = 100;
	self.health = self.maxHealth;
	self.bulletsTargetingThis = [];
	self.waveNumber = currentWave;
	self.isFlying = false;
	self.isImmune = false;
	self.isBoss = false;
	// Check if this is a boss wave
	// Check if this is a boss wave
	// Apply different stats based on enemy type
	switch (self.type) {
		case 'fast':
			self.speed *= 2; // Twice as fast
			self.maxHealth = 100;
			break;
		case 'immune':
			self.isImmune = true;
			self.speed *= 1.275; // 27.5% faster than normal (reduced by 15% from previous 50%)
			self.maxHealth = 40;
			break;
		case 'flying':
			self.isFlying = true;
			self.maxHealth = 80;
			break;
		case 'swarm':
			self.maxHealth = 50; // Weaker enemies
			break;
		case 'angry':
			self.speed *= 1; // Same speed as normal enemies
			self.maxHealth = 120; // More health than normal
			break;
		case 'bad':
			self.speed *= 0.5; // 50% slower than normal
			self.maxHealth = 1000; // 10 times the health of a normal enemy
			break;
		case 'normal':
		default:
			// Normal enemy uses default values
			break;
	}
	if (currentWave % 10 === 0 && currentWave > 0 && type !== 'swarm') {
		self.isBoss = true;
		// Boss enemies have 20x health and are larger
		self.maxHealth *= 20;
		// Slower speed for bosses
		self.speed = self.speed * 0.7;
	}
	self.health = self.maxHealth;
	// Get appropriate asset for this enemy type
	var assetId = 'enemy';
	if (self.type === 'angry') {
		assetId = 'Angry_Enemy';
	} else if (self.type === 'bad') {
		assetId = 'castlewall';
	} else if (self.type !== 'normal') {
		assetId = 'enemy_' + self.type;
	}
	var enemyGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Scale up boss enemies
	if (self.isBoss) {
		enemyGraphics.scaleX = 1.8;
		enemyGraphics.scaleY = 1.8;
	}
	// Fall back to regular enemy asset if specific type asset not found
	// Apply tint to differentiate enemy types
	/*switch (self.type) {
		case 'fast':
			enemyGraphics.tint = 0x00AAFF; // Blue for fast enemies
			break;
		case 'immune':
			enemyGraphics.tint = 0xAA0000; // Red for immune enemies
			break;
		case 'flying':
			enemyGraphics.tint = 0xFFFF00; // Yellow for flying enemies
			break;
		case 'swarm':
			enemyGraphics.tint = 0xFF00FF; // Pink for swarm enemies
			break;
	}*/
	// Create shadow for flying enemies
	if (self.isFlying) {
		// Create a shadow container that will be added to the shadow layer
		self.shadow = new Container();
		// Clone the enemy graphics for the shadow
		var shadowGraphics = self.shadow.attachAsset(assetId || 'enemy', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// Apply shadow effect
		shadowGraphics.tint = 0x000000; // Black shadow
		shadowGraphics.alpha = 0.4; // Semi-transparent
		// If this is a boss, scale up the shadow to match
		if (self.isBoss) {
			shadowGraphics.scaleX = 1.8;
			shadowGraphics.scaleY = 1.8;
		}
		// Position shadow slightly offset
		self.shadow.x = 20; // Offset right
		self.shadow.y = 20; // Offset down
		// Ensure shadow has the same rotation as the enemy
		shadowGraphics.rotation = enemyGraphics.rotation;
	}
	var healthBarOutline = self.attachAsset('healthBarOutline', {
		anchorX: 0,
		anchorY: 0.5
	});
	var healthBarBG = self.attachAsset('healthBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	var healthBar = self.attachAsset('healthBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	healthBarBG.y = healthBarOutline.y = healthBar.y = -enemyGraphics.height / 2 - 10;
	healthBarOutline.x = -healthBarOutline.width / 2;
	healthBarBG.x = healthBar.x = -healthBar.width / 2 - .5;
	healthBar.tint = 0x00ff00;
	healthBarBG.tint = 0xff0000;
	self.healthBar = healthBar;
	self.update = function () {
		// Skip enemy update when game is paused (gameSpeed = 0)
		if (gameSpeed === 0) {
			return;
		}
		if (self.health <= 0) {
			self.health = 0;
			self.healthBar.width = 0;
		}
		// Anti-stuck mechanism: track if enemy hasn't moved significantly
		if (self.lastPosition === undefined) {
			self.lastPosition = {
				x: self.currentCellX,
				y: self.currentCellY,
				time: LK.ticks
			};
			self.stuckCounter = 0;
		}
		// Check if enemy has been stuck in same position for too long
		var timeSinceLastCheck = LK.ticks - self.lastPosition.time;
		if (timeSinceLastCheck > 180) {
			// Check every 3 seconds
			var distanceMoved = Math.sqrt((self.currentCellX - self.lastPosition.x) * (self.currentCellX - self.lastPosition.x) + (self.currentCellY - self.lastPosition.y) * (self.currentCellY - self.lastPosition.y));
			if (distanceMoved < 0.5) {
				// If moved less than half a cell
				self.stuckCounter++;
				if (self.stuckCounter >= 3) {
					// If stuck for 3 checks (9 seconds)
					// Force reset enemy position and target
					self.currentTarget = null;
					// Try to find a valid spawn position
					for (var sx = 9; sx <= 14; sx++) {
						var testCell = grid.getCell(sx, 5);
						if (testCell && testCell.pathId === pathId) {
							self.cellX = sx;
							self.cellY = 5;
							self.currentCellX = sx;
							self.currentCellY = 5;
							self.stuckCounter = 0;
							break;
						}
					}
				}
			} else {
				self.stuckCounter = 0; // Reset stuck counter if moving
			}
			// Update last position
			self.lastPosition = {
				x: self.currentCellX,
				y: self.currentCellY,
				time: LK.ticks
			};
		}
		// Immune enemies attack towers in range
		if (self.isImmune) {
			// Immune enemies cannot be slowed or poisoned, clear any such effects
			self.poisoned = false;
			self.poisonEffect = false;
			// Attack towers every 120 frames (2 seconds)
			if (LK.ticks % Math.max(1, Math.floor(120 / gameSpeed)) === 0) {
				// Find towers in range and attack them
				for (var i = 0; i < towers.length; i++) {
					var tower = towers[i];
					var dx = tower.x - self.x;
					var dy = tower.y - self.y;
					var distance = Math.sqrt(dx * dx + dy * dy);
					// Attack towers within 2 cell range
					if (distance <= CELL_SIZE * 2) {
						// Check if any Healer towers are protecting this tower
						var isProtectedByHealer = false;
						for (var h = 0; h < towers.length; h++) {
							var healerTower = towers[h];
							if (healerTower.id === 'poison' && healerTower.isInRange(tower)) {
								isProtectedByHealer = true;
								break;
							}
						}
						// Only attack if not protected by a Healer tower
						if (!isProtectedByHealer) {
							// Easy mode: towers take no damage
							if (gameSettings.difficulty !== 'easy') {
								var damage = Math.floor(tower.maxHealth / 10); // 1/10th of tower's max health
								// Hardcore mode: enemies deal 2x damage
								if (gameSettings.difficulty === 'hardcore') {
									damage *= 2;
								}
								tower.health -= damage;
								if (tower.health <= 0) {
									tower.health = 0;
								}
								// Update tower health bar
								tower.towerHealthBar.width = tower.health / tower.maxHealth * 70;
							}
						}
						break; // Only attack one tower per update
					}
				}
			}
		} else if (self.type === 'angry') {
			// Angry enemies attack towers in range, including healer towers
			// Attack towers every 120 frames (2 seconds)
			if (LK.ticks % Math.max(1, Math.floor(120 / gameSpeed)) === 0) {
				// Find towers in range and attack them
				for (var i = 0; i < towers.length; i++) {
					var tower = towers[i];
					var dx = tower.x - self.x;
					var dy = tower.y - self.y;
					var distance = Math.sqrt(dx * dx + dy * dy);
					// Attack towers within 2 cell range
					if (distance <= CELL_SIZE * 2) {
						// Angry enemies can attack ALL towers including healers
						// Easy mode: towers take no damage
						if (gameSettings.difficulty !== 'easy') {
							var damage = Math.floor(tower.maxHealth * 0.25); // 25% of tower's max health
							// Hardcore mode: enemies deal 2x damage
							if (gameSettings.difficulty === 'hardcore') {
								damage *= 2;
							}
							tower.health -= damage;
							if (tower.health <= 0) {
								tower.health = 0;
							}
							// Update tower health bar
							tower.towerHealthBar.width = tower.health / tower.maxHealth * 70;
						}
						break; // Only attack one tower per update
					}
				}
			}
		} else if (self.type === 'bad') {
			// Bad enemies attack towers more frequently and deal more damage
			// Attack towers every 90 frames (1.5 seconds)
			if (LK.ticks % Math.max(1, Math.floor(90 / gameSpeed)) === 0) {
				// Find towers in range and attack them
				for (var i = 0; i < towers.length; i++) {
					var tower = towers[i];
					var dx = tower.x - self.x;
					var dy = tower.y - self.y;
					var distance = Math.sqrt(dx * dx + dy * dy);
					// Attack towers within 2.5 cell range (longer range than angry)
					if (distance <= CELL_SIZE * 2.5) {
						// Check if any Healer towers are protecting this tower
						var isProtectedByHealer = false;
						for (var h = 0; h < towers.length; h++) {
							var healerTower = towers[h];
							if (healerTower.id === 'poison' && healerTower.isInRange(tower)) {
								isProtectedByHealer = true;
								break;
							}
						}
						// Only attack if not protected by a Healer tower
						if (!isProtectedByHealer) {
							// Easy mode: towers take no damage
							if (gameSettings.difficulty !== 'easy') {
								// Bad enemies destroy towers in one hit (or deal massive damage in hardcore)
								if (gameSettings.difficulty === 'hardcore') {
									tower.health = 0; // Still one-shot in hardcore
								} else {
									tower.health = 0; // One-shot in normal/hard
								}
								// Update tower health bar
								tower.towerHealthBar.width = tower.health / tower.maxHealth * 70;
							}
						}
						break; // Only attack one tower per update
					}
				}
			}
		} else {
			// Handle poison effect
			if (self.poisoned) {
				// Visual indication of poisoned status
				if (!self.poisonEffect) {
					self.poisonEffect = true;
				}
				// Apply poison damage every 30 frames (twice per second), adjusted for game speed
				if (LK.ticks % Math.max(1, Math.floor(30 / gameSpeed)) === 0) {
					self.health -= self.poisonDamage * gameSpeed;
					if (self.health <= 0) {
						self.health = 0;
					}
					self.healthBar.width = self.health / self.maxHealth * 70;
				}
				self.poisonDuration -= gameSpeed;
				if (self.poisonDuration <= 0) {
					self.poisoned = false;
					self.poisonEffect = false;
					// Only reset tint if not slowed
					if (!self.slowed) {
						enemyGraphics.tint = 0xFFFFFF; // Reset tint
					}
				}
			}
		}
		// Set tint based on effect status
		if (self.isImmune) {
			enemyGraphics.tint = 0xFFFFFF;
		} else if (self.poisoned) {
			enemyGraphics.tint = 0x00FFAA;
		} else if (self.type === 'bad') {
			// Bad enemies use their asset's natural color - no tint applied
		} else {
			enemyGraphics.tint = 0xFFFFFF;
		}
		if (self.currentTarget) {
			var ox = self.currentTarget.x - self.currentCellX;
			var oy = self.currentTarget.y - self.currentCellY;
			if (ox !== 0 || oy !== 0) {
				var angle = Math.atan2(oy, ox);
				if (enemyGraphics.targetRotation === undefined) {
					enemyGraphics.targetRotation = angle;
					enemyGraphics.rotation = angle;
				} else {
					if (Math.abs(angle - enemyGraphics.targetRotation) > 0.05) {
						tween.stop(enemyGraphics, {
							rotation: true
						});
						// Calculate the shortest angle to rotate
						var currentRotation = enemyGraphics.rotation;
						var angleDiff = angle - currentRotation;
						// Normalize angle difference to -PI to PI range for shortest path
						while (angleDiff > Math.PI) {
							angleDiff -= Math.PI * 2;
						}
						while (angleDiff < -Math.PI) {
							angleDiff += Math.PI * 2;
						}
						enemyGraphics.targetRotation = angle;
						tween(enemyGraphics, {
							rotation: currentRotation + angleDiff
						}, {
							duration: 250,
							easing: tween.easeOut
						});
					}
				}
			}
		}
		healthBarOutline.y = healthBarBG.y = healthBar.y = -enemyGraphics.height / 2 - 10;
	};
	return self;
});
var GoldIndicator = Container.expand(function (value, x, y) {
	var self = Container.call(this);
	var shadowText = new Text2("+" + value, {
		size: 45,
		fill: 0x000000,
		weight: 800
	});
	shadowText.anchor.set(0.5, 0.5);
	shadowText.x = 2;
	shadowText.y = 2;
	self.addChild(shadowText);
	var goldText = new Text2("+" + value, {
		size: 45,
		fill: 0xFFD700,
		weight: 800
	});
	goldText.anchor.set(0.5, 0.5);
	self.addChild(goldText);
	self.x = x;
	self.y = y;
	self.alpha = 0;
	self.scaleX = 0.5;
	self.scaleY = 0.5;
	tween(self, {
		alpha: 1,
		scaleX: 1.2,
		scaleY: 1.2,
		y: y - 40
	}, {
		duration: 50,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			tween(self, {
				alpha: 0,
				scaleX: 1.5,
				scaleY: 1.5,
				y: y - 80
			}, {
				duration: 600,
				easing: tween.easeIn,
				delay: 800,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	});
	return self;
});
var Grid = Container.expand(function (gridWidth, gridHeight) {
	var self = Container.call(this);
	self.cells = [];
	self.spawns = [];
	self.goals = [];
	for (var i = 0; i < gridWidth; i++) {
		self.cells[i] = [];
		for (var j = 0; j < gridHeight; j++) {
			self.cells[i][j] = {
				score: 0,
				pathId: 0,
				towersInRange: []
			};
		}
	}
	/*
	Cell Types
	0: Transparent floor
	1: Wall
	2: Spawn
	3: Goal
	4: Castle wall
	*/
	for (var i = 0; i < gridWidth; i++) {
		var _loop = function _loop() {
				cell = self.cells[i][j];
				cellType = i === 0 || i === gridWidth - 1 || j <= 4 || j >= gridHeight - 4 ? 1 : 0; // Create castle structure with random labyrinth
				if (j > 4 && j < gridHeight - 4) {
					// Simple pseudo-random number generator using seed
					var seededRandom = function seededRandom() {
						mazeSeed = (mazeSeed * 9301 + 49297) % 233280;
						return mazeSeed / 233280;
					}; // Main castle outer walls
					// Generate maze seed based on reload counter to ensure different maze each reload
					// Use reload-based seed as primary factor for maze generation
					mazeSeed = gameSessionSeed * 7919 + (currentWave + 1) * 1009 + reloadCounter * 4397;
					if ((i === 2 || i === gridWidth - 3) && j >= 8 && j <= gridHeight - 8) {
						cellType = 4; // Castle wall
					}
					// Castle towers at corners
					if ((i >= 1 && i <= 4 || i >= gridWidth - 5 && i <= gridWidth - 2) && (j >= 7 && j <= 10 || j >= gridHeight - 11 && j <= gridHeight - 8)) {
						cellType = 4;
					}
					// Generate unique geometric maze patterns based on seed
					var mazePattern = (mazeSeed * 17 + (currentWave + 1) * 23) % 100;
					if (j >= 12 && j <= gridHeight - 12) {
						// Create safe corridors first - ensure at least 3 clear horizontal paths
						var safePaths = [16, 20, 24];
						var isSafePath = false;
						for (var sp = 0; sp < safePaths.length; sp++) {
							if (j === safePaths[sp] && i >= 8 && i <= gridWidth - 9) {
								isSafePath = true;
								break;
							}
						}
						if (!isSafePath) {
							// Generate dynamic geometric patterns based on random seed
							if (mazePattern < 20) {
								// Concentric geometric shapes
								var centerX = Math.floor(gridWidth / 2);
								var centerY = Math.floor((gridHeight - 12 + 12) / 2);
								var distance = Math.sqrt((i - centerX) * (i - centerX) + (j - centerY) * (j - centerY));
								var ringSize = 2 + mazeSeed % 3;
								if (Math.floor(distance) % ringSize === 1 && distance > 2 && distance < 8 && i >= 6 && i <= gridWidth - 7) {
									if (seededRandom() > 0.6) {
										cellType = 4;
									}
								}
							} else if (mazePattern < 40) {
								// Geometric wave patterns
								var waveFreq = 0.2 + mazeSeed % 5 * 0.1;
								var waveHeight = 2 + mazeSeed % 3;
								var expectedY = Math.floor(Math.sin(i * waveFreq) * waveHeight) + Math.floor((gridHeight - 12 + 12) / 2);
								if (Math.abs(j - expectedY) < 2 && i >= 6 && i <= gridWidth - 7) {
									if (seededRandom() > 0.5) {
										cellType = 4;
									}
								}
							} else if (mazePattern < 60) {
								// Diamond and rhombus patterns
								var midX = Math.floor(gridWidth / 2);
								var midY = Math.floor((gridHeight - 12 + 12) / 2);
								var manhattanDist = Math.abs(i - midX) + Math.abs(j - midY);
								var diamondSize = 3 + mazeSeed % 4;
								if (manhattanDist >= diamondSize && manhattanDist <= diamondSize + 3 && manhattanDist % 2 === 0) {
									if (seededRandom() > 0.5) {
										cellType = 4;
									}
								}
							} else if (mazePattern < 80) {
								// Hexagonal and triangular patterns
								var hexSize = 4 + mazeSeed % 3;
								var hexX = Math.floor(i / hexSize);
								var hexY = Math.floor(j / hexSize);
								if ((hexX + hexY) % 3 === 0 && (i % hexSize < 2 || j % hexSize < 2) && i >= 6 && i <= gridWidth - 7) {
									if (seededRandom() > 0.4) {
										cellType = 4;
									}
								}
							} else {
								// Spiral and radial patterns
								var centerX = Math.floor(gridWidth / 2);
								var centerY = Math.floor((gridHeight - 12 + 12) / 2);
								var angle = Math.atan2(j - centerY, i - centerX);
								var spiralArms = 4 + mazeSeed % 4;
								var armIndex = Math.floor(angle / (Math.PI * 2 / spiralArms));
								var distance = Math.sqrt((i - centerX) * (i - centerX) + (j - centerY) * (j - centerY));
								if (armIndex % 2 === 0 && distance > 2 && distance < 7 && i >= 6 && i <= gridWidth - 7) {
									if (seededRandom() > 0.45) {
										cellType = 4;
									}
								}
							}
							// Add strategic scattered obstacles with lower density
							if (i >= 7 && i <= gridWidth - 8 && j >= 14 && j <= gridHeight - 14) {
								if (seededRandom() > 0.8) {
									cellType = 4;
								}
							}
						}
					}
					// Central castle keep - always present
					if (i >= 10 && i <= 13 && j >= gridHeight - 16 && j <= gridHeight - 13) {
						if (!(i === 11 || i === 12) || !(j === gridHeight - 15 || j === gridHeight - 14)) {
							cellType = 4;
						}
					}
				}
				// Spawn and goal areas
				if (i > 11 - 3 && i <= 11 + 3) {
					if (j === 0) {
						cellType = 2;
						self.spawns.push(cell);
					} else if (j <= 4) {
						cellType = 0;
					} else if (j === gridHeight - 1) {
						cellType = 3;
						self.goals.push(cell);
					} else if (j >= gridHeight - 4) {
						cellType = 0;
					}
				}
				cell.type = cellType;
				cell.x = i;
				cell.y = j;
				cell.upLeft = self.cells[i - 1] && self.cells[i - 1][j - 1];
				cell.up = self.cells[i - 1] && self.cells[i - 1][j];
				cell.upRight = self.cells[i - 1] && self.cells[i - 1][j + 1];
				cell.left = self.cells[i][j - 1];
				cell.right = self.cells[i][j + 1];
				cell.downLeft = self.cells[i + 1] && self.cells[i + 1][j - 1];
				cell.down = self.cells[i + 1] && self.cells[i + 1][j];
				cell.downRight = self.cells[i + 1] && self.cells[i + 1][j + 1];
				cell.neighbors = [cell.upLeft, cell.up, cell.upRight, cell.right, cell.downRight, cell.down, cell.downLeft, cell.left];
				cell.targets = [];
				if (j > 3 && j <= gridHeight - 4) {
					debugCell = new DebugCell();
					self.addChild(debugCell);
					debugCell.cell = cell;
					debugCell.x = i * CELL_SIZE;
					debugCell.y = j * CELL_SIZE;
					cell.debugCell = debugCell;
				}
			},
			cell,
			cellType,
			mazeSeed,
			horizontalWallRows,
			hr,
			verticalWallCols,
			vc,
			debugCell;
		for (var j = 0; j < gridHeight; j++) {
			_loop();
		}
	}
	self.getCell = function (x, y) {
		return self.cells[x] && self.cells[x][y];
	};
	self.pathFind = function () {
		var before = new Date().getTime();
		var toProcess = self.goals.concat([]);
		maxScore = 0;
		pathId += 1;
		for (var a = 0; a < toProcess.length; a++) {
			toProcess[a].pathId = pathId;
		}
		function processNode(node, targetValue, targetNode) {
			if (node && node.type != 1 && node.type != 4) {
				if (node.pathId < pathId || targetValue < node.score) {
					node.targets = [targetNode];
				} else if (node.pathId == pathId && targetValue == node.score) {
					node.targets.push(targetNode);
				}
				if (node.pathId < pathId || targetValue < node.score) {
					node.score = targetValue;
					if (node.pathId != pathId) {
						toProcess.push(node);
					}
					node.pathId = pathId;
					if (targetValue > maxScore) {
						maxScore = targetValue;
					}
				}
			}
		}
		while (toProcess.length) {
			var nodes = toProcess;
			toProcess = [];
			for (var a = 0; a < nodes.length; a++) {
				var node = nodes[a];
				var targetScore = node.score + 14142;
				if (node.up && node.left && node.up.type != 1 && node.up.type != 4 && node.left.type != 1 && node.left.type != 4 && node.upLeft && node.upLeft.type != 1 && node.upLeft.type != 4) {
					processNode(node.upLeft, targetScore, node);
				}
				if (node.up && node.right && node.up.type != 1 && node.up.type != 4 && node.right.type != 1 && node.right.type != 4 && node.upRight && node.upRight.type != 1 && node.upRight.type != 4) {
					processNode(node.upRight, targetScore, node);
				}
				if (node.down && node.right && node.down.type != 1 && node.down.type != 4 && node.right.type != 1 && node.right.type != 4 && node.downRight && node.downRight.type != 1 && node.downRight.type != 4) {
					processNode(node.downRight, targetScore, node);
				}
				if (node.down && node.left && node.down.type != 1 && node.down.type != 4 && node.left.type != 1 && node.left.type != 4 && node.downLeft && node.downLeft.type != 1 && node.downLeft.type != 4) {
					processNode(node.downLeft, targetScore, node);
				}
				targetScore = node.score + 10000;
				processNode(node.up, targetScore, node);
				processNode(node.right, targetScore, node);
				processNode(node.down, targetScore, node);
				processNode(node.left, targetScore, node);
			}
		}
		// Check if any spawn point has a valid path to any goal
		var hasValidPath = false;
		for (var a = 0; a < self.spawns.length; a++) {
			if (self.spawns[a].pathId === pathId) {
				hasValidPath = true;
				break;
			}
		}
		// Ensure maze is navigable - return false if paths are blocked
		if (!hasValidPath) {
			console.log("Maze blocks all paths - this layout will be regenerated");
			return true; // Signal that maze needs regeneration
		}
		for (var a = 0; a < enemies.length; a++) {
			var enemy = enemies[a];
			// Skip enemies that haven't entered the viewable area yet
			if (enemy.currentCellY < 4) {
				continue;
			}
			// Skip flying enemies from path check as they can fly over obstacles
			if (enemy.isFlying) {
				continue;
			}
			var target = self.getCell(enemy.cellX, enemy.cellY);
			if (enemy.currentTarget) {
				if (enemy.currentTarget.pathId != pathId) {
					if (!target || target.pathId != pathId) {
						console.warn("Enemy blocked 1 ");
						return true;
					}
				}
			} else if (!target || target.pathId != pathId) {
				console.warn("Enemy blocked 2");
				return true;
			}
		}
		console.log("Speed", new Date().getTime() - before);
	};
	self.renderDebug = function () {
		for (var i = 0; i < gridWidth; i++) {
			for (var j = 0; j < gridHeight; j++) {
				var debugCell = self.cells[i][j].debugCell;
				if (debugCell) {
					debugCell.render(self.cells[i][j]);
				}
			}
		}
	};
	self.updateEnemy = function (enemy) {
		var cell = grid.getCell(enemy.cellX, enemy.cellY);
		if (cell.type == 3) {
			return true;
		}
		if (enemy.isFlying && enemy.shadow) {
			enemy.shadow.x = enemy.x + 20; // Match enemy x-position + offset
			enemy.shadow.y = enemy.y + 20; // Match enemy y-position + offset
			// Match shadow rotation with enemy rotation
			if (enemy.children[0] && enemy.shadow.children[0]) {
				enemy.shadow.children[0].rotation = enemy.children[0].rotation;
			}
		}
		// Check if the enemy has reached the entry area (y position is at least 5)
		var hasReachedEntryArea = enemy.currentCellY >= 4;
		// If enemy hasn't reached the entry area yet, just move down vertically
		if (!hasReachedEntryArea) {
			// Move directly downward
			enemy.currentCellY += enemy.speed * gameSpeed;
			// Rotate enemy graphic to face downward (PI/2 radians = 90 degrees)
			var angle = Math.PI / 2;
			if (enemy.children[0] && enemy.children[0].targetRotation === undefined) {
				enemy.children[0].targetRotation = angle;
				enemy.children[0].rotation = angle;
			} else if (enemy.children[0]) {
				if (Math.abs(angle - enemy.children[0].targetRotation) > 0.05) {
					tween.stop(enemy.children[0], {
						rotation: true
					});
					// Calculate the shortest angle to rotate
					var currentRotation = enemy.children[0].rotation;
					var angleDiff = angle - currentRotation;
					// Normalize angle difference to -PI to PI range for shortest path
					while (angleDiff > Math.PI) {
						angleDiff -= Math.PI * 2;
					}
					while (angleDiff < -Math.PI) {
						angleDiff += Math.PI * 2;
					}
					// Set target rotation and animate to it
					enemy.children[0].targetRotation = angle;
					tween(enemy.children[0], {
						rotation: currentRotation + angleDiff
					}, {
						duration: 250,
						easing: tween.easeOut
					});
				}
			}
			// Update enemy's position
			enemy.x = grid.x + enemy.currentCellX * CELL_SIZE;
			enemy.y = grid.y + enemy.currentCellY * CELL_SIZE;
			// If enemy has now reached the entry area, update cell coordinates
			if (enemy.currentCellY >= 4) {
				enemy.cellX = Math.round(enemy.currentCellX);
				enemy.cellY = Math.round(enemy.currentCellY);
			}
			return false;
		}
		// After reaching entry area, handle flying enemies differently
		if (enemy.isFlying) {
			// Flying enemies head straight to the closest goal
			if (!enemy.flyingTarget) {
				// Set flying target to the closest goal
				enemy.flyingTarget = self.goals[0];
				// Find closest goal if there are multiple
				if (self.goals.length > 1) {
					var closestDist = Infinity;
					for (var i = 0; i < self.goals.length; i++) {
						var goal = self.goals[i];
						var dx = goal.x - enemy.cellX;
						var dy = goal.y - enemy.cellY;
						var dist = dx * dx + dy * dy;
						if (dist < closestDist) {
							closestDist = dist;
							enemy.flyingTarget = goal;
						}
					}
				}
			}
			// Move directly toward the goal
			var ox = enemy.flyingTarget.x - enemy.currentCellX;
			var oy = enemy.flyingTarget.y - enemy.currentCellY;
			var dist = Math.sqrt(ox * ox + oy * oy);
			if (dist < enemy.speed) {
				// Reached the goal
				return true;
			}
			var angle = Math.atan2(oy, ox);
			// Rotate enemy graphic to match movement direction
			if (enemy.children[0] && enemy.children[0].targetRotation === undefined) {
				enemy.children[0].targetRotation = angle;
				enemy.children[0].rotation = angle;
			} else if (enemy.children[0]) {
				if (Math.abs(angle - enemy.children[0].targetRotation) > 0.05) {
					tween.stop(enemy.children[0], {
						rotation: true
					});
					// Calculate the shortest angle to rotate
					var currentRotation = enemy.children[0].rotation;
					var angleDiff = angle - currentRotation;
					// Normalize angle difference to -PI to PI range for shortest path
					while (angleDiff > Math.PI) {
						angleDiff -= Math.PI * 2;
					}
					while (angleDiff < -Math.PI) {
						angleDiff += Math.PI * 2;
					}
					// Set target rotation and animate to it
					enemy.children[0].targetRotation = angle;
					tween(enemy.children[0], {
						rotation: currentRotation + angleDiff
					}, {
						duration: 250,
						easing: tween.easeOut
					});
				}
			}
			// Update the cell position to track where the flying enemy is
			enemy.cellX = Math.round(enemy.currentCellX);
			enemy.cellY = Math.round(enemy.currentCellY);
			enemy.currentCellX += Math.cos(angle) * enemy.speed * gameSpeed;
			enemy.currentCellY += Math.sin(angle) * enemy.speed * gameSpeed;
			enemy.x = grid.x + enemy.currentCellX * CELL_SIZE;
			enemy.y = grid.y + enemy.currentCellY * CELL_SIZE;
			// Update shadow position if this is a flying enemy
			return false;
		}
		// Handle normal pathfinding enemies
		if (!enemy.currentTarget || !cell || cell.pathId !== pathId) {
			// Reset target if we don't have one or if current cell is invalid
			if (cell && cell.pathId === pathId && cell.targets && cell.targets.length > 0) {
				enemy.currentTarget = cell.targets[0];
			} else {
				// If current cell is invalid, try to find nearest valid cell
				var nearestValidCell = null;
				var minDistance = Infinity;
				// Search for nearby valid cells
				for (var searchX = Math.max(0, enemy.cellX - 2); searchX <= Math.min(grid.cells.length - 1, enemy.cellX + 2); searchX++) {
					for (var searchY = Math.max(0, enemy.cellY - 2); searchY <= Math.min(grid.cells[0].length - 1, enemy.cellY + 2); searchY++) {
						var searchCell = grid.getCell(searchX, searchY);
						if (searchCell && searchCell.pathId === pathId && searchCell.targets && searchCell.targets.length > 0) {
							var dx = searchX - enemy.cellX;
							var dy = searchY - enemy.cellY;
							var distance = dx * dx + dy * dy;
							if (distance < minDistance) {
								minDistance = distance;
								nearestValidCell = searchCell;
							}
						}
					}
				}
				if (nearestValidCell) {
					enemy.currentTarget = nearestValidCell;
					// Snap enemy to the valid cell position
					enemy.cellX = nearestValidCell.x;
					enemy.cellY = nearestValidCell.y;
					enemy.currentCellX = nearestValidCell.x;
					enemy.currentCellY = nearestValidCell.y;
				}
			}
		}
		if (enemy.currentTarget) {
			// Validate that current target is still valid
			if (enemy.currentTarget.pathId !== pathId) {
				enemy.currentTarget = null;
				return; // Will be fixed next frame
			}
			// If we have a better path from current cell, use it
			if (cell && cell.pathId === pathId && cell.score < enemy.currentTarget.score) {
				enemy.currentTarget = cell;
			}
			var ox = enemy.currentTarget.x - enemy.currentCellX;
			var oy = enemy.currentTarget.y - enemy.currentCellY;
			var dist = Math.sqrt(ox * ox + oy * oy);
			if (dist < enemy.speed * gameSpeed) {
				// Reached target, snap to grid and clear target
				enemy.cellX = enemy.currentTarget.x;
				enemy.cellY = enemy.currentTarget.y;
				enemy.currentCellX = enemy.currentTarget.x;
				enemy.currentCellY = enemy.currentTarget.y;
				enemy.currentTarget = null;
				// Don't return here, let position update happen
			} else {
				// Move toward target
				var angle = Math.atan2(oy, ox);
				enemy.currentCellX += Math.cos(angle) * enemy.speed * gameSpeed;
				enemy.currentCellY += Math.sin(angle) * enemy.speed * gameSpeed;
			}
		} else {
			// No valid target - try to get unstuck by moving toward goal
			var goalFound = false;
			for (var g = 0; g < self.goals.length; g++) {
				var goal = self.goals[g];
				var gx = goal.x - enemy.currentCellX;
				var gy = goal.y - enemy.currentCellY;
				if (Math.abs(gx) > 0.1 || Math.abs(gy) > 0.1) {
					var gAngle = Math.atan2(gy, gx);
					enemy.currentCellX += Math.cos(gAngle) * enemy.speed * gameSpeed * 0.5; // Move slower when lost
					enemy.currentCellY += Math.sin(gAngle) * enemy.speed * gameSpeed * 0.5;
					goalFound = true;
					break;
				}
			}
		}
		// Update visual position
		enemy.x = grid.x + enemy.currentCellX * CELL_SIZE;
		enemy.y = grid.y + enemy.currentCellY * CELL_SIZE;
	};
});
var MainMenu = Container.expand(function () {
	var self = Container.call(this);
	// Center the menu container
	self.x = 2048 / 2;
	self.y = 2732 / 2;
	// Background overlay
	var menuBackground = self.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	menuBackground.width = 2048;
	menuBackground.height = 2732;
	menuBackground.tint = 0x000000;
	menuBackground.alpha = 0.8;
	// Current state: 'difficulty' or 'empire'
	self.currentState = 'difficulty';
	self.selectedDifficulty = null;
	// Difficulty selection elements
	var difficultyTitle = new Text2("Select Difficulty", {
		size: 120,
		fill: 0xFFFFFF,
		weight: 800
	});
	difficultyTitle.anchor.set(0.5, 0.5);
	difficultyTitle.y = -600;
	self.addChild(difficultyTitle);
	// Difficulty buttons
	var difficulties = ['easy', 'normal', 'hard', 'hardcore'];
	var difficultyButtons = [];
	var difficultyButtonSpacing = 150;
	var difficultyStartY = -300;
	for (var i = 0; i < difficulties.length; i++) {
		var difficulty = difficulties[i];
		var button = new Container();
		var buttonBG = button.attachAsset('notification', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		buttonBG.width = 600;
		buttonBG.height = 120;
		buttonBG.tint = 0x0088FF;
		var buttonText = new Text2(difficulty.charAt(0).toUpperCase() + difficulty.slice(1), {
			size: 60,
			fill: 0xFFFFFF,
			weight: 800
		});
		buttonText.anchor.set(0.5, 0.5);
		button.addChild(buttonText);
		button.y = difficultyStartY + i * difficultyButtonSpacing;
		button.difficulty = difficulty;
		button.down = function () {
			self.selectedDifficulty = this.difficulty;
			self.showEmpireSelection();
		};
		self.addChild(button);
		difficultyButtons.push(button);
	}
	// Empire selection elements (initially hidden)
	var empireTitle = new Text2("Choose Your Empire!", {
		size: 100,
		fill: 0xFFFFFF,
		weight: 800
	});
	empireTitle.anchor.set(0.5, 0.5);
	empireTitle.y = -700;
	empireTitle.visible = false;
	self.addChild(empireTitle);
	// Empire buttons - 8 different empires
	var empires = [{
		name: 'Austrian',
		color: 0x00FF00,
		description: ''
	}, {
		name: 'Hungarian',
		color: 0x0088FF,
		description: ''
	}, {
		name: 'Ottoman',
		color: 0xFF8800,
		description: ''
	}, {
		name: 'French',
		color: 0xFF0000,
		description: ''
	}, {
		name: 'England',
		color: 0x800080,
		description: ''
	}, {
		name: 'Scotch',
		color: 0x008080,
		description: ''
	}, {
		name: 'Kalmar Union',
		color: 0x006400,
		description: ''
	}, {
		name: 'Byzantine',
		color: 0xFF69B4,
		description: ''
	}];
	var empireButtons = [];
	var empireButtonSpacing = 200;
	var empireStartY = -400;
	for (var i = 0; i < empires.length; i++) {
		var empire = empires[i];
		var button = new Container();
		var buttonBG = button.attachAsset('notification', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		buttonBG.width = 600;
		buttonBG.height = 200;
		buttonBG.tint = empire.color;
		var buttonText = new Text2(empire.name, {
			size: 60,
			fill: 0xFFFFFF,
			weight: 800
		});
		buttonText.anchor.set(0.5, 0.5);
		buttonText.y = 0;
		button.addChild(buttonText);
		var descText = new Text2(empire.description, {
			size: 40,
			fill: 0xFFFFFF,
			weight: 400
		});
		descText.anchor.set(0.5, 0.5);
		descText.y = 40;
		button.addChild(descText);
		button.y = empireStartY + i * empireButtonSpacing;
		button.visible = false; // Initially hidden
		button.down = function (empireData) {
			return function () {
				// Show empire characteristics menu instead of starting game directly
				self.showEmpireCharacteristics(empireData);
			};
		}(empire);
		self.addChild(button);
		empireButtons.push(button);
	}
	// No exit buttons needed
	var exitButtons = [];
	self.showEmpireSelection = function () {
		self.currentState = 'empire';
		// Hide difficulty elements
		difficultyTitle.visible = false;
		for (var i = 0; i < difficultyButtons.length; i++) {
			difficultyButtons[i].visible = false;
		}
		// Show empire elements
		empireTitle.visible = true;
		for (var i = 0; i < empireButtons.length; i++) {
			empireButtons[i].visible = true;
		}
		// No exit buttons to show
	};
	self.showEmpireCharacteristics = function (empireData) {
		// Remove any existing characteristics popup
		if (self.characteristicsPopup) {
			self.removeChild(self.characteristicsPopup);
			self.characteristicsPopup.destroy();
		}
		// Create characteristics popup
		self.characteristicsPopup = new Container();
		// Background for characteristics popup
		var charBG = self.characteristicsPopup.attachAsset('notification', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		charBG.width = 1400;
		charBG.height = 1000;
		charBG.tint = 0x222222;
		charBG.alpha = 0.95;
		// Empire name title
		var titleText = new Text2(empireData.name + " Empire", {
			size: 80,
			fill: empireData.color,
			weight: 800
		});
		titleText.anchor.set(0.5, 0.5);
		titleText.y = -400;
		self.characteristicsPopup.addChild(titleText);
		// Empire characteristics text
		var characteristicsText = "";
		switch (empireData.name) {
			case 'Austrian':
				characteristicsText = "Advantages:\n• +20% tower fire rate\n• All towers attack faster\n• Excellent for rapid defense";
				break;
			case 'Hungarian':
				characteristicsText = "Advantages:\n• Tower cost -5 gold\n  (Normal+ difficulty)\n• Better economy management\n• More affordable towers";
				break;
			case 'Ottoman':
				characteristicsText = "Advantages:\n• Start with 100 gold\n  (instead of 80)\n• +20% damage on all attacks\n• Strong early game";
				break;
			case 'French':
				characteristicsText = "Advantages:\n• +20% tower durability\n• Towers have more health\n• Better defensive capability";
				break;
			case 'England':
				characteristicsText = "Advantages:\n• Start with 100 gold\n  (instead of 80)\n• 3 fewer enemies per wave\n• Easier defense management";
				break;
			case 'Scotch':
				characteristicsText = "Advantages:\n• Tower costs -3 gold\n• Archer range +50%\n• Better defense capability";
				break;
			case 'Kalmar Union':
				characteristicsText = "Advantages:\n• Healer range +100%\n• Better healing coverage\n• Improved tower protection";
				break;
			case 'Byzantine':
				characteristicsText = "Advantages:\n• Tower durability +100%\n• Towers have double health\nDisadvantages:\n• +3 enemies per wave\n• Higher enemy pressure";
				break;
			default:
				characteristicsText = "Advantages:\n• Standard empire\n• No special bonuses\n• Balanced gameplay";
		}
		var infoText = new Text2(characteristicsText, {
			size: 60,
			fill: 0xFFFFFF,
			weight: 400
		});
		infoText.anchor.set(0.5, 0.5);
		infoText.y = -150;
		self.characteristicsPopup.addChild(infoText);
		// Select Empire button
		var selectButton = new Container();
		var selectBG = selectButton.attachAsset('notification', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		selectBG.width = 400;
		selectBG.height = 120;
		selectBG.tint = 0x00AA00;
		var selectText = new Text2("Select Empire", {
			size: 60,
			fill: 0xFFFFFF,
			weight: 800
		});
		selectText.anchor.set(0.5, 0.5);
		selectButton.addChild(selectText);
		selectButton.y = 200;
		selectButton.down = function () {
			// Store selected empire and start game
			gameSettings.selectedEmpire = empireData.name;
			storage.selectedEmpire = empireData.name;
			self.removeChild(self.characteristicsPopup);
			self.characteristicsPopup.destroy();
			self.characteristicsPopup = null;
			self.startGame();
		};
		self.characteristicsPopup.addChild(selectButton);
		// Back button
		var backButton = new Container();
		var backBG = backButton.attachAsset('notification', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		backBG.width = 200;
		backBG.height = 100;
		backBG.tint = 0xAA0000;
		var backText = new Text2("Back", {
			size: 50,
			fill: 0xFFFFFF,
			weight: 800
		});
		backText.anchor.set(0.5, 0.5);
		backButton.addChild(backText);
		backButton.y = 350;
		backButton.down = function () {
			self.removeChild(self.characteristicsPopup);
			self.characteristicsPopup.destroy();
			self.characteristicsPopup = null;
		};
		self.characteristicsPopup.addChild(backButton);
		self.addChild(self.characteristicsPopup);
	};
	self.startGame = function () {
		// Apply difficulty settings
		gameSettings.difficulty = self.selectedDifficulty;
		storage.selectedDifficulty = self.selectedDifficulty;
		// Apply empire starting gold bonuses
		if (gameSettings.selectedEmpire === 'Ottoman' || gameSettings.selectedEmpire === 'England') {
			setGold(100);
		} else {
			setGold(80);
		}
		// Enable game interactions
		gameStartAllowed = true;
		// Update tower cost displays for new difficulty
		for (var i = 0; i < sourceTowers.length; i++) {
			sourceTowers[i].updateCostLabels();
		}
		// Exit menu when empire is selected
		self.destroy();
	};
	return self;
});
var MusicControl = Container.expand(function () {
	var self = Container.call(this);
	var buttonBackground = self.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	buttonBackground.width = 200;
	buttonBackground.height = 70;
	buttonBackground.tint = 0xFF8800;
	var musicText = new Text2("Music1", {
		size: 50,
		fill: 0xFFFFFF,
		weight: 800
	});
	musicText.anchor.set(0.5, 0.5);
	self.addChild(musicText);
	var currentMusicIndex = 1;
	self.updateDisplay = function () {
		var musicName = currentMusicIndex === 6 ? "Nomusic" : "Music" + currentMusicIndex;
		musicText.setText(musicName);
		// Update button color based on music selection
		switch (currentMusicIndex) {
			case 1:
				buttonBackground.tint = 0xFF8800; // Orange for Music1
				break;
			case 2:
				buttonBackground.tint = 0x8800FF; // Purple for Music2
				break;
			case 3:
				buttonBackground.tint = 0x00FF88; // Green for Music3
				break;
			case 4:
				buttonBackground.tint = 0xFF0088; // Pink for Music4
				break;
			case 5:
				buttonBackground.tint = 0x0088FF; // Blue for Music5
				break;
			case 6:
				buttonBackground.tint = 0x444444; // Gray for Nomusic
				break;
		}
	};
	self.down = function () {
		// Block music control if difficulty not selected
		if (!gameStartAllowed) {
			return;
		}
		// Cycle through music options 1-6 (including Nomusic)
		currentMusicIndex = currentMusicIndex >= 6 ? 1 : currentMusicIndex + 1;
		self.updateDisplay();
		// Play the corresponding music track or stop music for Nomusic
		if (currentMusicIndex === 6) {
			LK.stopMusic();
		} else {
			var musicTrack = "warmusic" + (currentMusicIndex === 1 ? "" : currentMusicIndex);
			LK.playMusic(musicTrack);
		}
	};
	// Initialize display
	self.updateDisplay();
	return self;
});
var NextWaveButton = Container.expand(function () {
	var self = Container.call(this);
	var buttonBackground = self.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	buttonBackground.width = 300;
	buttonBackground.height = 100;
	buttonBackground.tint = 0x0088FF;
	var buttonText = new Text2("Next Wave", {
		size: 50,
		fill: 0xFFFFFF,
		weight: 800
	});
	buttonText.anchor.set(0.5, 0.5);
	self.addChild(buttonText);
	self.enabled = false;
	self.visible = false;
	self.update = function () {
		if (waveIndicator && waveIndicator.gameStarted && currentWave < totalWaves) {
			self.enabled = true;
			self.visible = true;
			buttonBackground.tint = 0x0088FF;
			self.alpha = 1;
		} else {
			self.enabled = false;
			self.visible = false;
			buttonBackground.tint = 0x888888;
			self.alpha = 0.7;
		}
	};
	self.down = function () {
		// Block next wave if difficulty not selected
		if (!gameStartAllowed) {
			return;
		}
		if (!self.enabled) {
			return;
		}
		if (waveIndicator.gameStarted && currentWave < totalWaves) {
			currentWave++; // Increment to the next wave directly
			waveTimer = 0; // Reset wave timer
			waveInProgress = true;
			waveSpawned = false;
			var notification = game.addChild(new Notification("Wave " + currentWave + " activated!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 150;
		}
	};
	return self;
});
var Notification = Container.expand(function (message) {
	var self = Container.call(this);
	var notificationGraphics = self.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var notificationText = new Text2(message, {
		size: 50,
		fill: 0x000000,
		weight: 800
	});
	notificationText.anchor.set(0.5, 0.5);
	notificationGraphics.width = notificationText.width + 30;
	self.addChild(notificationText);
	self.alpha = 1;
	var fadeOutTime = 120;
	self.update = function () {
		if (fadeOutTime > 0) {
			fadeOutTime--;
			self.alpha = Math.min(fadeOutTime / 120 * 2, 1);
		} else {
			self.destroy();
		}
	};
	return self;
});
var SourceTower = Container.expand(function (towerType) {
	var self = Container.call(this);
	self.towerType = towerType || 'default';
	// Increase size of base for easier touch
	var baseGraphics = self.attachAsset('tower', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.3,
		scaleY: 1.3
	});
	switch (self.towerType) {
		case 'rapid':
			baseGraphics.tint = 0x00AAFF;
			break;
		case 'sniper':
			baseGraphics.tint = 0xFF5500;
			break;
		case 'splash':
			baseGraphics.tint = 0x33CC00;
			break;
		case 'slow':
			baseGraphics.tint = 0x9900FF;
			break;
		case 'poison':
			baseGraphics.tint = 0x00FFAA;
			break;
		default:
			baseGraphics.tint = 0xAAAAAA;
	}
	var towerCost = getTowerCost(self.towerType);
	// Add shadow for tower type label
	var displayNameShadow = self.towerType === 'default' ? 'Infantry' : self.towerType === 'rapid' ? 'Catapult' : self.towerType === 'splash' ? 'Hwacha' : self.towerType === 'sniper' ? 'Archer' : self.towerType === 'slow' ? 'Bullet' : self.towerType === 'poison' ? 'Healer' : self.towerType.charAt(0).toUpperCase() + self.towerType.slice(1);
	var typeLabelShadow = new Text2(displayNameShadow, {
		size: 50,
		fill: 0x000000,
		weight: 800
	});
	typeLabelShadow.anchor.set(0.5, 0.5);
	typeLabelShadow.x = 4;
	typeLabelShadow.y = -20 + 4;
	self.addChild(typeLabelShadow);
	// Add tower type label
	var displayName = self.towerType === 'default' ? 'Infantry' : self.towerType === 'rapid' ? 'Catapult' : self.towerType === 'splash' ? 'Hwacha' : self.towerType === 'sniper' ? 'Archer' : self.towerType === 'slow' ? 'Bullet' : self.towerType === 'poison' ? 'Healer' : self.towerType.charAt(0).toUpperCase() + self.towerType.slice(1);
	var typeLabel = new Text2(displayName, {
		size: 50,
		fill: 0xFFFFFF,
		weight: 800
	});
	typeLabel.anchor.set(0.5, 0.5);
	typeLabel.y = -20; // Position above center of tower
	self.addChild(typeLabel);
	// Add cost shadow
	var costLabelShadow = new Text2(towerCost, {
		size: 50,
		fill: 0x000000,
		weight: 800
	});
	costLabelShadow.anchor.set(0.5, 0.5);
	costLabelShadow.x = 4;
	costLabelShadow.y = 24 + 12;
	self.addChild(costLabelShadow);
	// Add cost label
	var costLabel = new Text2(towerCost, {
		size: 50,
		fill: 0xFFD700,
		weight: 800
	});
	costLabel.anchor.set(0.5, 0.5);
	costLabel.y = 20 + 12;
	self.addChild(costLabel);
	self.updateCostLabels = function () {
		var newCost = getTowerCost(self.towerType);
		costLabel.setText(newCost);
		costLabelShadow.setText(newCost);
	};
	self.update = function () {
		// Check if player can afford this tower
		var canAfford = gold >= getTowerCost(self.towerType);
		// Set opacity based on affordability
		self.alpha = canAfford ? 1 : 0.5;
	};
	return self;
});
var SpeedControl = Container.expand(function () {
	var self = Container.call(this);
	var buttonBackground = self.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	buttonBackground.width = 200;
	buttonBackground.height = 70;
	buttonBackground.tint = 0x0088FF;
	var speedText = new Text2("Normal", {
		size: 50,
		fill: 0xFFFFFF,
		weight: 800
	});
	speedText.anchor.set(0.5, 0.5);
	self.addChild(speedText);
	self.updateDisplay = function () {
		var speedName = gameSpeedOptions[currentSpeedIndex];
		speedText.setText(speedName.charAt(0).toUpperCase() + speedName.slice(1));
		// Update game speed based on selection
		switch (speedName) {
			case 'slow':
				gameSpeed = 0.5;
				buttonBackground.tint = 0xFF8800; // Orange for slow
				break;
			case 'normal':
				gameSpeed = 1.0;
				buttonBackground.tint = 0x0088FF; // Blue for normal
				break;
			case 'fast':
				gameSpeed = 2.0;
				buttonBackground.tint = 0x00FF00; // Green for fast
				break;
			case 'ultra':
				gameSpeed = 2.5; // 25% faster than fast
				buttonBackground.tint = 0xFF0000; // Red for ultra
				break;
			case 'paused':
				gameSpeed = 0.0; // Complete pause
				buttonBackground.tint = 0x666666; // Gray for paused
				break;
		}
	};
	self.down = function () {
		// Block speed control if difficulty not selected
		if (!gameStartAllowed) {
			return;
		}
		// Cycle through speed options
		currentSpeedIndex = (currentSpeedIndex + 1) % gameSpeedOptions.length;
		self.updateDisplay();
	};
	// Initialize display
	self.updateDisplay();
	return self;
});
var Tower = Container.expand(function (id) {
	var self = Container.call(this);
	self.id = id || 'default';
	self.level = 1;
	self.maxLevel = 6;
	self.gridX = 0;
	self.gridY = 0;
	self.range = 3 * CELL_SIZE;
	// Tower health system
	self.maxHealth = 100;
	// Apply French empire bonus: 20% more tower durability
	if (gameSettings.selectedEmpire === 'French') {
		self.maxHealth = Math.floor(self.maxHealth * 1.2); // 20% more health
	}
	// Apply Byzantine empire bonus: 100% more tower durability
	if (gameSettings.selectedEmpire === 'Byzantine') {
		self.maxHealth = Math.floor(self.maxHealth * 2.0); // 100% more health
	}
	self.health = self.maxHealth;
	// Standardized method to get the current range of the tower
	self.getRange = function () {
		// Always calculate range based on tower type and level
		switch (self.id) {
			case 'sniper':
				// Sniper: base 5, +0.8 per level, but final upgrade gets a huge boost
				var baseRange;
				if (self.level === self.maxLevel) {
					baseRange = 12 * CELL_SIZE; // Significantly increased range for max level
				} else {
					baseRange = (5 + (self.level - 1) * 0.8) * CELL_SIZE;
				}
				// Apply Scotch empire bonus: 50% more archer range
				if (gameSettings.selectedEmpire === 'Scotch') {
					baseRange = baseRange * 1.5;
				}
				return baseRange;
			case 'splash':
				// Splash: base 2, +0.2 per level (max ~4 blocks at max level)
				return (2 + (self.level - 1) * 0.2) * CELL_SIZE;
			case 'rapid':
				// Rapid: base 2.5, +0.5 per level
				return (2.5 + (self.level - 1) * 0.5) * CELL_SIZE;
			case 'slow':
				// Slow: base 3.5, +0.5 per level
				return (3.5 + (self.level - 1) * 0.5) * CELL_SIZE;
			case 'poison':
				// Poison: base 3.2, +0.5 per level
				var baseRange = (3.2 + (self.level - 1) * 0.5) * CELL_SIZE;
				// Apply Kalmar Union empire bonus: 100% more healer range
				if (gameSettings.selectedEmpire === 'Kalmar Union') {
					baseRange = baseRange * 2.0;
				}
				return baseRange;
			default:
				// Default: base 3, +0.5 per level
				return (3 + (self.level - 1) * 0.5) * CELL_SIZE;
		}
	};
	self.cellsInRange = [];
	self.fireRate = 60;
	self.bulletSpeed = 5;
	self.damage = 10;
	self.lastFired = 0;
	self.targetEnemy = null;
	switch (self.id) {
		case 'rapid':
			self.fireRate = 30;
			self.damage = 5;
			self.range = 2.5 * CELL_SIZE;
			self.bulletSpeed = 7;
			break;
		case 'sniper':
			self.fireRate = 90;
			self.damage = 25;
			self.range = 5 * CELL_SIZE;
			self.bulletSpeed = 25;
			break;
		case 'splash':
			self.fireRate = 52; // 30% faster than 75 (75 * 0.7 = 52.5, rounded to 52)
			self.damage = 15;
			self.range = 2 * CELL_SIZE;
			self.bulletSpeed = 4;
			break;
		case 'slow':
			self.fireRate = 50;
			self.damage = 8;
			self.range = 3.5 * CELL_SIZE;
			self.bulletSpeed = 5;
			break;
		case 'poison':
			self.fireRate = 70;
			self.damage = 12;
			self.range = 3.2 * CELL_SIZE;
			self.bulletSpeed = 5;
			break;
	}
	var baseGraphics = self.attachAsset('tower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	switch (self.id) {
		case 'rapid':
			baseGraphics.tint = 0x00AAFF;
			break;
		case 'sniper':
			baseGraphics.tint = 0xFF5500;
			break;
		case 'splash':
			baseGraphics.tint = 0x33CC00;
			break;
		case 'slow':
			baseGraphics.tint = 0x9900FF;
			break;
		case 'poison':
			baseGraphics.tint = 0x00FFAA;
			break;
		default:
			baseGraphics.tint = 0xAAAAAA;
	}
	// Add tower health bar
	var towerHealthBarOutline = self.attachAsset('healthBarOutline', {
		anchorX: 0,
		anchorY: 0.5
	});
	var towerHealthBarBG = self.attachAsset('healthBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	var towerHealthBar = self.attachAsset('healthBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	towerHealthBarBG.y = towerHealthBarOutline.y = towerHealthBar.y = baseGraphics.height / 2 + 15;
	towerHealthBarOutline.x = -towerHealthBarOutline.width / 2;
	towerHealthBarBG.x = towerHealthBar.x = -towerHealthBar.width / 2 - .5;
	towerHealthBar.tint = 0x00ff00;
	towerHealthBarBG.tint = 0xff0000;
	self.towerHealthBar = towerHealthBar;
	var levelIndicators = [];
	var maxDots = self.maxLevel;
	var dotSpacing = baseGraphics.width / (maxDots + 1);
	var dotSize = CELL_SIZE / 6;
	for (var i = 0; i < maxDots; i++) {
		var dot = new Container();
		var outlineCircle = dot.attachAsset('towerLevelIndicator', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		outlineCircle.width = dotSize + 4;
		outlineCircle.height = dotSize + 4;
		outlineCircle.tint = 0x000000;
		var towerLevelIndicator = dot.attachAsset('towerLevelIndicator', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		towerLevelIndicator.width = dotSize;
		towerLevelIndicator.height = dotSize;
		towerLevelIndicator.tint = 0xCCCCCC;
		dot.x = -CELL_SIZE + dotSpacing * (i + 1);
		dot.y = CELL_SIZE * 0.7;
		self.addChild(dot);
		levelIndicators.push(dot);
	}
	var gunContainer = new Container();
	self.addChild(gunContainer);
	var gunGraphics = gunContainer.attachAsset('defense', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.updateLevelIndicators = function () {
		for (var i = 0; i < maxDots; i++) {
			var dot = levelIndicators[i];
			var towerLevelIndicator = dot.children[1];
			if (i < self.level) {
				towerLevelIndicator.tint = 0xFFFFFF;
			} else {
				switch (self.id) {
					case 'rapid':
						towerLevelIndicator.tint = 0x00AAFF;
						break;
					case 'sniper':
						towerLevelIndicator.tint = 0xFF5500;
						break;
					case 'splash':
						towerLevelIndicator.tint = 0x33CC00;
						break;
					case 'slow':
						towerLevelIndicator.tint = 0x9900FF;
						break;
					case 'poison':
						towerLevelIndicator.tint = 0x00FFAA;
						break;
					default:
						towerLevelIndicator.tint = 0xAAAAAA;
				}
			}
		}
	};
	self.updateLevelIndicators();
	self.refreshCellsInRange = function () {
		for (var i = 0; i < self.cellsInRange.length; i++) {
			var cell = self.cellsInRange[i];
			var towerIndex = cell.towersInRange.indexOf(self);
			if (towerIndex !== -1) {
				cell.towersInRange.splice(towerIndex, 1);
			}
		}
		self.cellsInRange = [];
		var rangeRadius = self.getRange() / CELL_SIZE;
		var centerX = self.gridX + 1;
		var centerY = self.gridY + 1;
		var minI = Math.floor(centerX - rangeRadius - 0.5);
		var maxI = Math.ceil(centerX + rangeRadius + 0.5);
		var minJ = Math.floor(centerY - rangeRadius - 0.5);
		var maxJ = Math.ceil(centerY + rangeRadius + 0.5);
		for (var i = minI; i <= maxI; i++) {
			for (var j = minJ; j <= maxJ; j++) {
				var closestX = Math.max(i, Math.min(centerX, i + 1));
				var closestY = Math.max(j, Math.min(centerY, j + 1));
				var deltaX = closestX - centerX;
				var deltaY = closestY - centerY;
				var distanceSquared = deltaX * deltaX + deltaY * deltaY;
				if (distanceSquared <= rangeRadius * rangeRadius) {
					var cell = grid.getCell(i, j);
					if (cell) {
						self.cellsInRange.push(cell);
						cell.towersInRange.push(self);
					}
				}
			}
		}
		grid.renderDebug();
	};
	self.getTotalValue = function () {
		var baseTowerCost = getTowerCost(self.id);
		var totalInvestment = baseTowerCost;
		var baseUpgradeCost = baseTowerCost; // Upgrade cost now scales with base tower cost
		for (var i = 1; i < self.level; i++) {
			totalInvestment += Math.floor(baseUpgradeCost * Math.pow(2, i - 1));
		}
		return totalInvestment;
	};
	self.upgrade = function () {
		if (self.level < self.maxLevel) {
			// Exponential upgrade cost: base cost * (2 ^ (level-1)), scaled by tower base cost
			var baseUpgradeCost = getTowerCost(self.id);
			var upgradeCost;
			// Make last upgrade level extra expensive
			if (self.level === self.maxLevel - 1) {
				upgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.level - 1) * 3.5 / 2); // Half the cost for final upgrade
			} else {
				upgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.level - 1));
			}
			if (gold >= upgradeCost) {
				setGold(gold - upgradeCost);
				self.level++;
				// Increase tower health by 50% on upgrade
				self.maxHealth = Math.floor(self.maxHealth * 1.5);
				self.health = self.maxHealth; // Restore to full health on upgrade
				// No need to update self.range here; getRange() is now the source of truth
				// Apply tower-specific upgrades based on type
				if (self.id === 'rapid') {
					if (self.level === self.maxLevel) {
						// Extra powerful last upgrade (double the effect)
						self.fireRate = Math.max(4, 30 - self.level * 9); // double the effect
						self.damage = 5 + self.level * 10; // double the effect
						self.bulletSpeed = 7 + self.level * 2.4; // double the effect
					} else {
						self.fireRate = Math.max(15, 30 - self.level * 3); // Fast tower gets faster with upgrades
						self.damage = 5 + self.level * 3;
						self.bulletSpeed = 7 + self.level * 0.7;
					}
				} else {
					if (self.level === self.maxLevel) {
						// Extra powerful last upgrade for all other towers (double the effect)
						self.fireRate = Math.max(5, 60 - self.level * 24); // double the effect
						self.damage = 10 + self.level * 20; // double the effect
						self.bulletSpeed = 5 + self.level * 2.4; // double the effect
					} else {
						self.fireRate = Math.max(20, 60 - self.level * 8);
						self.damage = 10 + self.level * 5;
						self.bulletSpeed = 5 + self.level * 0.5;
					}
				}
				self.refreshCellsInRange();
				self.updateLevelIndicators();
				if (self.level > 1) {
					var levelDot = levelIndicators[self.level - 1].children[1];
					tween(levelDot, {
						scaleX: 1.5,
						scaleY: 1.5
					}, {
						duration: 300,
						easing: tween.elasticOut,
						onFinish: function onFinish() {
							tween(levelDot, {
								scaleX: 1,
								scaleY: 1
							}, {
								duration: 200,
								easing: tween.easeOut
							});
						}
					});
				}
				return true;
			} else {
				var notification = game.addChild(new Notification("Not enough gold to upgrade!"));
				notification.x = 2048 / 2;
				notification.y = grid.height - 50;
				return false;
			}
		}
		return false;
	};
	self.findTarget = function () {
		var closestEnemy = null;
		var closestScore = Infinity;
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			var dx = enemy.x - self.x;
			var dy = enemy.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			// Check if enemy is in range
			if (distance <= self.getRange()) {
				// Artillery towers can target all enemy types
				if (self.id === 'splash') {
					// Handle flying enemies differently - they can be targeted regardless of path
					if (enemy.isFlying) {
						// For flying enemies, prioritize by distance to the goal
						if (enemy.flyingTarget) {
							var goalX = enemy.flyingTarget.x;
							var goalY = enemy.flyingTarget.y;
							var distToGoal = Math.sqrt((goalX - enemy.cellX) * (goalX - enemy.cellX) + (goalY - enemy.cellY) * (goalY - enemy.cellY));
							// Use distance to goal as score
							if (distToGoal < closestScore) {
								closestScore = distToGoal;
								closestEnemy = enemy;
							}
						} else {
							// If no flying target yet (shouldn't happen), prioritize by distance to tower
							if (distance < closestScore) {
								closestScore = distance;
								closestEnemy = enemy;
							}
						}
					} else {
						// For ground enemies, use the original path-based targeting
						// Get the cell for this enemy
						var cell = grid.getCell(enemy.cellX, enemy.cellY);
						if (cell && cell.pathId === pathId) {
							// Use the cell's score (distance to exit) for prioritization
							// Lower score means closer to exit
							if (cell.score < closestScore) {
								closestScore = cell.score;
								closestEnemy = enemy;
							}
						}
					}
				} else {
					// Other towers can target both flying and ground enemies
					// Handle flying enemies differently - they can be targeted regardless of path
					if (enemy.isFlying) {
						// For flying enemies, prioritize by distance to the goal
						if (enemy.flyingTarget) {
							var goalX = enemy.flyingTarget.x;
							var goalY = enemy.flyingTarget.y;
							var distToGoal = Math.sqrt((goalX - enemy.cellX) * (goalX - enemy.cellX) + (goalY - enemy.cellY) * (goalY - enemy.cellY));
							// Use distance to goal as score
							if (distToGoal < closestScore) {
								closestScore = distToGoal;
								closestEnemy = enemy;
							}
						} else {
							// If no flying target yet (shouldn't happen), prioritize by distance to tower
							if (distance < closestScore) {
								closestScore = distance;
								closestEnemy = enemy;
							}
						}
					} else {
						// For ground enemies, use the original path-based targeting
						// Get the cell for this enemy
						var cell = grid.getCell(enemy.cellX, enemy.cellY);
						if (cell && cell.pathId === pathId) {
							// Use the cell's score (distance to exit) for prioritization
							// Lower score means closer to exit
							if (cell.score < closestScore) {
								closestScore = cell.score;
								closestEnemy = enemy;
							}
						}
					}
				}
			}
		}
		if (!closestEnemy) {
			self.targetEnemy = null;
		}
		return closestEnemy;
	};
	self.update = function () {
		// Update tower health bar
		if (self.health <= 0) {
			// Healer towers are immune to destruction
			if (self.id === 'poison') {
				self.health = self.maxHealth; // Reset to full health
				self.towerHealthBar.width = 70; // Full health bar
			} else {
				self.health = 0;
				self.towerHealthBar.width = 0;
				// Destroy tower when health reaches zero
				// Remove from cells in range
				for (var i = 0; i < self.cellsInRange.length; i++) {
					var cell = self.cellsInRange[i];
					var towerIndex = cell.towersInRange.indexOf(self);
					if (towerIndex !== -1) {
						cell.towersInRange.splice(towerIndex, 1);
					}
				}
				// Reset grid cells to floor (if not castle walls)
				for (var i = 0; i < 2; i++) {
					for (var j = 0; j < 2; j++) {
						var cell = grid.getCell(self.gridX + i, self.gridY + j);
						if (cell && cell.type !== 4) {
							cell.type = 0;
						}
					}
				}
				// Remove from towers array
				var towerIndex = towers.indexOf(self);
				if (towerIndex !== -1) {
					towers.splice(towerIndex, 1);
				}
				// Clear selected tower if this was selected
				if (selectedTower === self) {
					selectedTower = null;
				}
				// Remove tower from game
				self.destroy();
				// Update pathfinding
				grid.pathFind();
				grid.renderDebug();
				return;
			}
		} else {
			self.towerHealthBar.width = self.health / self.maxHealth * 70;
		}
		self.targetEnemy = self.findTarget();
		if (self.targetEnemy) {
			var dx = self.targetEnemy.x - self.x;
			var dy = self.targetEnemy.y - self.y;
			var angle = Math.atan2(dy, dx);
			// Only rotate gun container if this is not a Trecher tower or Healer tower
			if (self.id !== 'slow' && self.id !== 'poison') {
				gunContainer.rotation = angle;
			}
			// Check if this tower is affected by any Trecher towers
			var effectiveFireRate = self.fireRate;
			if (self.id !== 'slow') {
				// Trechers don't boost themselves
				for (var i = 0; i < towers.length; i++) {
					var tower = towers[i];
					if (tower.id === 'slow' && tower.isInRange(self)) {
						effectiveFireRate = self.fireRate * 0.5; // 50% faster firing (half the fire rate delay)
						break;
					}
				}
			}
			// Apply Austrian empire bonus: 20% faster fire rate (20% less delay)
			if (gameSettings.selectedEmpire === 'Austrian') {
				effectiveFireRate = effectiveFireRate * 0.8; // 20% faster firing
			}
			if (LK.ticks - self.lastFired >= effectiveFireRate / gameSpeed) {
				self.fire();
				self.lastFired = LK.ticks;
			}
		}
	};
	self.down = function (x, y, obj) {
		var existingMenus = game.children.filter(function (child) {
			return child instanceof UpgradeMenu;
		});
		var hasOwnMenu = false;
		var rangeCircle = null;
		for (var i = 0; i < game.children.length; i++) {
			if (game.children[i].isTowerRange && game.children[i].tower === self) {
				rangeCircle = game.children[i];
				break;
			}
		}
		for (var i = 0; i < existingMenus.length; i++) {
			if (existingMenus[i].tower === self) {
				hasOwnMenu = true;
				break;
			}
		}
		if (hasOwnMenu) {
			for (var i = 0; i < existingMenus.length; i++) {
				if (existingMenus[i].tower === self) {
					hideUpgradeMenu(existingMenus[i]);
				}
			}
			if (rangeCircle) {
				game.removeChild(rangeCircle);
			}
			selectedTower = null;
			grid.renderDebug();
			return;
		}
		for (var i = 0; i < existingMenus.length; i++) {
			existingMenus[i].destroy();
		}
		for (var i = game.children.length - 1; i >= 0; i--) {
			if (game.children[i].isTowerRange) {
				game.removeChild(game.children[i]);
			}
		}
		selectedTower = self;
		var rangeIndicator = new Container();
		rangeIndicator.isTowerRange = true;
		rangeIndicator.tower = self;
		game.addChild(rangeIndicator);
		rangeIndicator.x = self.x;
		rangeIndicator.y = self.y;
		var rangeGraphics = rangeIndicator.attachAsset('rangeCircle', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		rangeGraphics.width = rangeGraphics.height = self.getRange() * 2;
		rangeGraphics.alpha = 0.3;
		var upgradeMenu = new UpgradeMenu(self);
		game.addChild(upgradeMenu);
		upgradeMenu.x = 2048 / 2;
		tween(upgradeMenu, {
			y: 2732 - 225
		}, {
			duration: 200,
			easing: tween.backOut
		});
		grid.renderDebug();
	};
	self.isInRange = function (enemy) {
		if (!enemy) {
			return false;
		}
		var dx = enemy.x - self.x;
		var dy = enemy.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		return distance <= self.getRange();
	};
	self.fire = function () {
		// Trecher towers don't fire bullets - they only provide support effects
		if (self.id === 'slow') {
			return;
		}
		// Healer towers don't fire bullets - they only provide healing/protection effects
		if (self.id === 'poison') {
			return;
		}
		if (self.targetEnemy) {
			var potentialDamage = 0;
			for (var i = 0; i < self.targetEnemy.bulletsTargetingThis.length; i++) {
				potentialDamage += self.targetEnemy.bulletsTargetingThis[i].damage;
			}
			if (self.targetEnemy.health > potentialDamage) {
				var bulletX = self.x + Math.cos(gunContainer.rotation) * 40;
				var bulletY = self.y + Math.sin(gunContainer.rotation) * 40;
				var bulletDamage = self.damage;
				// Apply Ottoman empire bonus: 20% more damage
				if (gameSettings.selectedEmpire === 'Ottoman') {
					bulletDamage = Math.ceil(bulletDamage * 1.2); // 20% more damage
				}
				var bullet = new Bullet(bulletX, bulletY, self.targetEnemy, bulletDamage, self.bulletSpeed);
				// Set bullet type based on tower type
				bullet.type = self.id;
				// Customize bullet appearance based on tower type
				switch (self.id) {
					case 'rapid':
						bullet.children[0].tint = 0x00AAFF;
						bullet.children[0].width = 20;
						bullet.children[0].height = 20;
						break;
					case 'sniper':
						bullet.children[0].tint = 0xFF5500;
						bullet.children[0].width = 15;
						bullet.children[0].height = 15;
						break;
					case 'splash':
						bullet.children[0].tint = 0x33CC00;
						bullet.children[0].width = 40;
						bullet.children[0].height = 40;
						break;
					case 'poison':
						bullet.children[0].tint = 0x00FFAA;
						bullet.children[0].width = 35;
						bullet.children[0].height = 35;
						break;
				}
				game.addChild(bullet);
				bullets.push(bullet);
				self.targetEnemy.bulletsTargetingThis.push(bullet);
				// --- Fire recoil effect for gunContainer ---
				// Stop any ongoing recoil tweens before starting a new one
				tween.stop(gunContainer, {
					x: true,
					y: true,
					scaleX: true,
					scaleY: true
				});
				// Always use the original resting position for recoil, never accumulate offset
				if (gunContainer._restX === undefined) {
					gunContainer._restX = 0;
				}
				if (gunContainer._restY === undefined) {
					gunContainer._restY = 0;
				}
				if (gunContainer._restScaleX === undefined) {
					gunContainer._restScaleX = 1;
				}
				if (gunContainer._restScaleY === undefined) {
					gunContainer._restScaleY = 1;
				}
				// Reset to resting position before animating (in case of interrupted tweens)
				gunContainer.x = gunContainer._restX;
				gunContainer.y = gunContainer._restY;
				gunContainer.scaleX = gunContainer._restScaleX;
				gunContainer.scaleY = gunContainer._restScaleY;
				// Calculate recoil offset (recoil back along the gun's rotation)
				var recoilDistance = 8;
				var recoilX = -Math.cos(gunContainer.rotation) * recoilDistance;
				var recoilY = -Math.sin(gunContainer.rotation) * recoilDistance;
				// Animate recoil back from the resting position
				tween(gunContainer, {
					x: gunContainer._restX + recoilX,
					y: gunContainer._restY + recoilY
				}, {
					duration: 60,
					easing: tween.cubicOut,
					onFinish: function onFinish() {
						// Animate return to original position/scale
						tween(gunContainer, {
							x: gunContainer._restX,
							y: gunContainer._restY
						}, {
							duration: 90,
							easing: tween.cubicIn
						});
					}
				});
			}
		}
	};
	self.placeOnGrid = function (gridX, gridY) {
		self.gridX = gridX;
		self.gridY = gridY;
		self.x = grid.x + gridX * CELL_SIZE + CELL_SIZE / 2;
		self.y = grid.y + gridY * CELL_SIZE + CELL_SIZE / 2;
		for (var i = 0; i < 2; i++) {
			for (var j = 0; j < 2; j++) {
				var cell = grid.getCell(gridX + i, gridY + j);
				if (cell) {
					cell.type = 1;
				}
			}
		}
		self.refreshCellsInRange();
		// Completely destroy and recreate tower preview when tower is successfully placed
		if (towerPreview && towerPreview.parent) {
			game.removeChild(towerPreview);
			towerPreview.destroy();
			towerPreview = new TowerPreview();
			towerPreview.visible = false;
		}
	};
	return self;
});
var TowerPreview = Container.expand(function () {
	var self = Container.call(this);
	var towerRange = 3;
	var rangeInPixels = towerRange * CELL_SIZE;
	self.towerType = 'default';
	self.hasEnoughGold = true;
	var rangeIndicator = new Container();
	self.addChild(rangeIndicator);
	var rangeGraphics = rangeIndicator.attachAsset('rangeCircle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	rangeGraphics.alpha = 0.3;
	var previewGraphics = self.attachAsset('rare', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	previewGraphics.width = CELL_SIZE * 2;
	previewGraphics.height = CELL_SIZE * 2;
	self.canPlace = false;
	self.gridX = 0;
	self.gridY = 0;
	self.blockedByEnemy = false;
	self.update = function () {
		var previousHasEnoughGold = self.hasEnoughGold;
		self.hasEnoughGold = gold >= getTowerCost(self.towerType);
		// Only update appearance if the affordability status has changed
		if (previousHasEnoughGold !== self.hasEnoughGold) {
			self.updateAppearance();
		}
	};
	self.updateAppearance = function () {
		// Use Tower class to get the source of truth for range
		var tempTower = new Tower(self.towerType);
		var previewRange = tempTower.getRange();
		// Clean up tempTower to avoid memory leaks
		if (tempTower && tempTower.destroy) {
			tempTower.destroy();
		}
		// Set range indicator using unified range logic
		rangeGraphics.width = rangeGraphics.height = previewRange * 2;
		switch (self.towerType) {
			case 'rapid':
				previewGraphics.tint = 0x00AAFF;
				break;
			case 'sniper':
				previewGraphics.tint = 0xFF5500;
				break;
			case 'splash':
				previewGraphics.tint = 0x33CC00;
				break;
			case 'slow':
				previewGraphics.tint = 0x9900FF;
				break;
			case 'poison':
				previewGraphics.tint = 0x00FFAA;
				break;
			default:
				previewGraphics.tint = 0xAAAAAA;
		}
		if (!self.canPlace || !self.hasEnoughGold) {
			previewGraphics.tint = 0xFF0000;
		}
	};
	self.updatePlacementStatus = function () {
		var validGridPlacement = true;
		if (self.gridY <= 4 || self.gridY + 1 >= grid.cells[0].length - 4) {
			validGridPlacement = false;
		} else {
			for (var i = 0; i < 2; i++) {
				for (var j = 0; j < 2; j++) {
					var cell = grid.getCell(self.gridX + i, self.gridY + j);
					if (!cell || cell.type !== 0) {
						validGridPlacement = false;
						break;
					}
				}
				if (!validGridPlacement) {
					break;
				}
			}
		}
		self.blockedByEnemy = false;
		if (validGridPlacement) {
			for (var i = 0; i < enemies.length; i++) {
				var enemy = enemies[i];
				if (enemy.currentCellY < 4) {
					continue;
				}
				// Only check non-flying enemies, flying enemies can pass over towers
				if (!enemy.isFlying) {
					if (enemy.cellX >= self.gridX && enemy.cellX < self.gridX + 2 && enemy.cellY >= self.gridY && enemy.cellY < self.gridY + 2) {
						self.blockedByEnemy = true;
						break;
					}
					if (enemy.currentTarget) {
						var targetX = enemy.currentTarget.x;
						var targetY = enemy.currentTarget.y;
						if (targetX >= self.gridX && targetX < self.gridX + 2 && targetY >= self.gridY && targetY < self.gridY + 2) {
							self.blockedByEnemy = true;
							break;
						}
					}
				}
			}
		}
		self.canPlace = validGridPlacement && !self.blockedByEnemy;
		self.hasEnoughGold = gold >= getTowerCost(self.towerType);
		self.updateAppearance();
	};
	self.checkPlacement = function () {
		self.updatePlacementStatus();
	};
	self.snapToGrid = function (x, y) {
		var gridPosX = x - grid.x;
		var gridPosY = y - grid.y;
		self.gridX = Math.floor(gridPosX / CELL_SIZE);
		self.gridY = Math.floor(gridPosY / CELL_SIZE);
		self.x = grid.x + self.gridX * CELL_SIZE + CELL_SIZE / 2;
		self.y = grid.y + self.gridY * CELL_SIZE + CELL_SIZE / 2;
		self.checkPlacement();
	};
	return self;
});
var UpgradeMenu = Container.expand(function (tower) {
	var self = Container.call(this);
	self.tower = tower;
	self.y = 2732 + 225;
	var menuBackground = self.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	menuBackground.width = 2048;
	menuBackground.height = 500;
	menuBackground.tint = 0x444444;
	menuBackground.alpha = 0.9;
	var towerDisplayName = self.tower.id === 'default' ? 'Infantry' : self.tower.id === 'rapid' ? 'Catapult' : self.tower.id === 'splash' ? 'Hwacha' : self.tower.id === 'sniper' ? 'Archer' : self.tower.id === 'slow' ? 'Bullet' : self.tower.id === 'poison' ? 'Healer' : self.tower.id.charAt(0).toUpperCase() + self.tower.id.slice(1);
	var towerTypeText = new Text2(towerDisplayName + ' Tower', {
		size: 80,
		fill: 0xFFFFFF,
		weight: 800
	});
	towerTypeText.anchor.set(0, 0);
	towerTypeText.x = -840;
	towerTypeText.y = -160;
	self.addChild(towerTypeText);
	var statsText = new Text2('Level: ' + self.tower.level + '/' + self.tower.maxLevel + '\nDamage: ' + self.tower.damage + '\nFire Rate: ' + (60 / self.tower.fireRate).toFixed(1) + '/s', {
		size: 70,
		fill: 0xFFFFFF,
		weight: 400
	});
	statsText.anchor.set(0, 0.5);
	statsText.x = -840;
	statsText.y = 50;
	self.addChild(statsText);
	var buttonsContainer = new Container();
	buttonsContainer.x = 500;
	self.addChild(buttonsContainer);
	var upgradeButton = new Container();
	buttonsContainer.addChild(upgradeButton);
	var buttonBackground = upgradeButton.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	buttonBackground.width = 500;
	buttonBackground.height = 150;
	var isMaxLevel = self.tower.level >= self.tower.maxLevel;
	// Exponential upgrade cost: base cost * (2 ^ (level-1)), scaled by tower base cost
	var baseUpgradeCost = getTowerCost(self.tower.id);
	var upgradeCost;
	if (isMaxLevel) {
		upgradeCost = 0;
	} else if (self.tower.level === self.tower.maxLevel - 1) {
		upgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.tower.level - 1) * 3.5 / 2);
	} else {
		upgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.tower.level - 1));
	}
	buttonBackground.tint = isMaxLevel ? 0x888888 : gold >= upgradeCost ? 0x00AA00 : 0x888888;
	var buttonText = new Text2(isMaxLevel ? 'Max Level' : 'Upgrade: ' + upgradeCost + ' gold', {
		size: 60,
		fill: 0xFFFFFF,
		weight: 800
	});
	buttonText.anchor.set(0.5, 0.5);
	upgradeButton.addChild(buttonText);
	var sellButton = new Container();
	buttonsContainer.addChild(sellButton);
	var sellButtonBackground = sellButton.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	sellButtonBackground.width = 500;
	sellButtonBackground.height = 150;
	sellButtonBackground.tint = 0xCC0000;
	var totalInvestment = self.tower.getTotalValue ? self.tower.getTotalValue() : 0;
	var sellValue = getTowerSellValue(totalInvestment);
	var sellButtonText = new Text2('Sell: +' + sellValue + ' gold', {
		size: 60,
		fill: 0xFFFFFF,
		weight: 800
	});
	sellButtonText.anchor.set(0.5, 0.5);
	sellButton.addChild(sellButtonText);
	upgradeButton.y = -85;
	sellButton.y = 85;
	var closeButton = new Container();
	self.addChild(closeButton);
	var closeBackground = closeButton.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	closeBackground.width = 90;
	closeBackground.height = 90;
	closeBackground.tint = 0xAA0000;
	var closeText = new Text2('X', {
		size: 68,
		fill: 0xFFFFFF,
		weight: 800
	});
	closeText.anchor.set(0.5, 0.5);
	closeButton.addChild(closeText);
	closeButton.x = menuBackground.width / 2 - 57;
	closeButton.y = -menuBackground.height / 2 + 57;
	upgradeButton.down = function (x, y, obj) {
		if (self.tower.level >= self.tower.maxLevel) {
			var notification = game.addChild(new Notification("Tower is already at max level!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 50;
			return;
		}
		if (self.tower.upgrade()) {
			// Exponential upgrade cost: base cost * (2 ^ (level-1)), scaled by tower base cost
			var baseUpgradeCost = getTowerCost(self.tower.id);
			if (self.tower.level >= self.tower.maxLevel) {
				upgradeCost = 0;
			} else if (self.tower.level === self.tower.maxLevel - 1) {
				upgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.tower.level - 1) * 3.5 / 2);
			} else {
				upgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.tower.level - 1));
			}
			statsText.setText('Level: ' + self.tower.level + '/' + self.tower.maxLevel + '\nDamage: ' + self.tower.damage + '\nFire Rate: ' + (60 / self.tower.fireRate).toFixed(1) + '/s');
			buttonText.setText('Upgrade: ' + upgradeCost + ' gold');
			var totalInvestment = self.tower.getTotalValue ? self.tower.getTotalValue() : 0;
			var sellValue = Math.floor(totalInvestment * 0.6);
			sellButtonText.setText('Sell: +' + sellValue + ' gold');
			if (self.tower.level >= self.tower.maxLevel) {
				buttonBackground.tint = 0x888888;
				buttonText.setText('Max Level');
			}
			var rangeCircle = null;
			for (var i = 0; i < game.children.length; i++) {
				if (game.children[i].isTowerRange && game.children[i].tower === self.tower) {
					rangeCircle = game.children[i];
					break;
				}
			}
			if (rangeCircle) {
				var rangeGraphics = rangeCircle.children[0];
				rangeGraphics.width = rangeGraphics.height = self.tower.getRange() * 2;
			} else {
				var newRangeIndicator = new Container();
				newRangeIndicator.isTowerRange = true;
				newRangeIndicator.tower = self.tower;
				game.addChildAt(newRangeIndicator, 0);
				newRangeIndicator.x = self.tower.x;
				newRangeIndicator.y = self.tower.y;
				var rangeGraphics = newRangeIndicator.attachAsset('rangeCircle', {
					anchorX: 0.5,
					anchorY: 0.5
				});
				rangeGraphics.width = rangeGraphics.height = self.tower.getRange() * 2;
				rangeGraphics.alpha = 0.3;
			}
			tween(self, {
				scaleX: 1.05,
				scaleY: 1.05
			}, {
				duration: 100,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(self, {
						scaleX: 1,
						scaleY: 1
					}, {
						duration: 100,
						easing: tween.easeIn
					});
				}
			});
		}
	};
	sellButton.down = function (x, y, obj) {
		var totalInvestment = self.tower.getTotalValue ? self.tower.getTotalValue() : 0;
		var sellValue = getTowerSellValue(totalInvestment);
		setGold(gold + sellValue);
		var notification = game.addChild(new Notification("Tower sold for " + sellValue + " gold!"));
		notification.x = 2048 / 2;
		notification.y = grid.height - 50;
		var gridX = self.tower.gridX;
		var gridY = self.tower.gridY;
		for (var i = 0; i < 2; i++) {
			for (var j = 0; j < 2; j++) {
				var cell = grid.getCell(gridX + i, gridY + j);
				if (cell) {
					// Only reset to floor if it's not a castle wall
					if (cell.type !== 4) {
						cell.type = 0;
					}
					var towerIndex = cell.towersInRange.indexOf(self.tower);
					if (towerIndex !== -1) {
						cell.towersInRange.splice(towerIndex, 1);
					}
				}
			}
		}
		if (selectedTower === self.tower) {
			selectedTower = null;
		}
		var towerIndex = towers.indexOf(self.tower);
		if (towerIndex !== -1) {
			towers.splice(towerIndex, 1);
		}
		towerLayer.removeChild(self.tower);
		grid.pathFind();
		grid.renderDebug();
		self.destroy();
		for (var i = 0; i < game.children.length; i++) {
			if (game.children[i].isTowerRange && game.children[i].tower === self.tower) {
				game.removeChild(game.children[i]);
				break;
			}
		}
	};
	closeButton.down = function (x, y, obj) {
		hideUpgradeMenu(self);
		selectedTower = null;
		grid.renderDebug();
	};
	self.update = function () {
		if (self.tower.level >= self.tower.maxLevel) {
			if (buttonText.text !== 'Max Level') {
				buttonText.setText('Max Level');
				buttonBackground.tint = 0x888888;
			}
			return;
		}
		// Exponential upgrade cost: base cost * (2 ^ (level-1)), scaled by tower base cost
		var baseUpgradeCost = getTowerCost(self.tower.id);
		var currentUpgradeCost;
		if (self.tower.level >= self.tower.maxLevel) {
			currentUpgradeCost = 0;
		} else if (self.tower.level === self.tower.maxLevel - 1) {
			currentUpgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.tower.level - 1) * 3.5 / 2);
		} else {
			currentUpgradeCost = Math.floor(baseUpgradeCost * Math.pow(2, self.tower.level - 1));
		}
		var canAfford = gold >= currentUpgradeCost;
		buttonBackground.tint = canAfford ? 0x00AA00 : 0x888888;
		var newText = 'Upgrade: ' + currentUpgradeCost + ' gold';
		if (buttonText.text !== newText) {
			buttonText.setText(newText);
		}
	};
	return self;
});
var WaveIndicator = Container.expand(function () {
	var self = Container.call(this);
	self.gameStarted = false;
	self.waveMarkers = [];
	self.waveTypes = [];
	self.enemyCounts = [];
	self.indicatorWidth = 0;
	self.lastBossType = null; // Track the last boss type to avoid repeating
	var blockWidth = 400;
	var totalBlocksWidth = blockWidth * totalWaves;
	var startMarker = new Container();
	var startBlock = startMarker.attachAsset('notification', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	startBlock.width = blockWidth - 10;
	startBlock.height = 70 * 2;
	startBlock.tint = 0x00AA00;
	// Add shadow for start text
	var startTextShadow = new Text2("Start Game", {
		size: 50,
		fill: 0x000000,
		weight: 800
	});
	startTextShadow.anchor.set(0.5, 0.5);
	startTextShadow.x = 4;
	startTextShadow.y = 4;
	startMarker.addChild(startTextShadow);
	var startText = new Text2("Start Game", {
		size: 50,
		fill: 0xFFFFFF,
		weight: 800
	});
	startText.anchor.set(0.5, 0.5);
	startMarker.addChild(startText);
	startMarker.x = -self.indicatorWidth;
	self.addChild(startMarker);
	self.waveMarkers.push(startMarker);
	startMarker.down = function () {
		// Block game start if difficulty not selected
		if (!gameStartAllowed) {
			return;
		}
		if (!self.gameStarted) {
			self.gameStarted = true;
			currentWave = 0;
			waveTimer = nextWaveTime;
			startBlock.tint = 0x00FF00;
			startText.setText("Started!");
			startTextShadow.setText("Started!");
			// Make sure shadow position remains correct after text change
			startTextShadow.x = 4;
			startTextShadow.y = 4;
			var notification = game.addChild(new Notification("Game started! Wave 1 incoming!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 150;
		}
	};
	for (var i = 0; i < totalWaves; i++) {
		var marker = new Container();
		var block = marker.attachAsset('notification', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		block.width = blockWidth - 10;
		block.height = 70 * 2;
		// All waves are normal enemy waves
		var waveType = "Dawn";
		var enemyType = "normal";
		var enemyCount = 10;
		block.tint = 0xAAAAAA;
		// Store the wave type and enemy count
		self.waveTypes[i] = enemyType;
		self.enemyCounts[i] = enemyCount;
		// Add shadow for wave type - 30% smaller than before
		var waveTypeShadow = new Text2(waveType, {
			size: 56,
			fill: 0x000000,
			weight: 800
		});
		waveTypeShadow.anchor.set(0.5, 0.5);
		waveTypeShadow.x = 4;
		waveTypeShadow.y = 4;
		marker.addChild(waveTypeShadow);
		// Add wave type text - 30% smaller than before
		var waveTypeText = new Text2(waveType, {
			size: 56,
			fill: 0xFFFFFF,
			weight: 800
		});
		waveTypeText.anchor.set(0.5, 0.5);
		waveTypeText.y = 0;
		marker.addChild(waveTypeText);
		// Add shadow for wave number - 20% larger than before
		var waveNumShadow = new Text2((i + 1).toString(), {
			size: 48,
			fill: 0x000000,
			weight: 800
		});
		waveNumShadow.anchor.set(1.0, 1.0);
		waveNumShadow.x = blockWidth / 2 - 16 + 5;
		waveNumShadow.y = block.height / 2 - 12 + 5;
		marker.addChild(waveNumShadow);
		// Main wave number text - 20% larger than before
		var waveNum = new Text2((i + 1).toString(), {
			size: 48,
			fill: 0xFFFFFF,
			weight: 800
		});
		waveNum.anchor.set(1.0, 1.0);
		waveNum.x = blockWidth / 2 - 16;
		waveNum.y = block.height / 2 - 12;
		marker.addChild(waveNum);
		marker.x = -self.indicatorWidth + (i + 1) * blockWidth;
		self.addChild(marker);
		self.waveMarkers.push(marker);
	}
	// Get wave type for a specific wave number
	self.getWaveType = function (waveNumber) {
		if (waveNumber < 1 || waveNumber > totalWaves) {
			return "normal";
		}
		// If this is a boss wave (waveNumber % 10 === 0), and the type is the same as lastBossType
		// then we should return a different boss type
		var waveType = self.waveTypes[waveNumber - 1];
		return waveType;
	};
	// Get enemy count for a specific wave number
	self.getEnemyCount = function (waveNumber) {
		if (waveNumber < 1 || waveNumber > totalWaves) {
			return 10;
		}
		return self.enemyCounts[waveNumber - 1];
	};
	// Get display name for a wave type
	self.getWaveTypeName = function (waveNumber) {
		var type = self.getWaveType(waveNumber);
		var typeName = type.charAt(0).toUpperCase() + type.slice(1);
		// Add boss prefix for boss waves (every 10th wave)
		if (waveNumber % 10 === 0 && waveNumber > 0 && type !== 'swarm') {
			typeName = "BOSS";
		}
		return typeName;
	};
	self.positionIndicator = new Container();
	var indicator = self.positionIndicator.attachAsset('towerLevelIndicator', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	indicator.width = blockWidth - 10;
	indicator.height = 16;
	indicator.tint = 0xffad0e;
	indicator.y = -65;
	var indicator2 = self.positionIndicator.attachAsset('towerLevelIndicator', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	indicator2.width = blockWidth - 10;
	indicator2.height = 16;
	indicator2.tint = 0xffad0e;
	indicator2.y = 65;
	var leftWall = self.positionIndicator.attachAsset('towerLevelIndicator', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	leftWall.width = 16;
	leftWall.height = 146;
	leftWall.tint = 0xffad0e;
	leftWall.x = -(blockWidth - 16) / 2;
	var rightWall = self.positionIndicator.attachAsset('towerLevelIndicator', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	rightWall.width = 16;
	rightWall.height = 146;
	rightWall.tint = 0xffad0e;
	rightWall.x = (blockWidth - 16) / 2;
	self.addChild(self.positionIndicator);
	self.update = function () {
		var progress = waveTimer / nextWaveTime;
		var moveAmount = (progress + currentWave) * blockWidth;
		for (var i = 0; i < self.waveMarkers.length; i++) {
			var marker = self.waveMarkers[i];
			marker.x = -moveAmount + i * blockWidth;
		}
		self.positionIndicator.x = 0;
		for (var i = 0; i < totalWaves + 1; i++) {
			var marker = self.waveMarkers[i];
			if (i === 0) {
				continue;
			}
			var block = marker.children[0];
			if (i - 1 < currentWave) {
				block.alpha = .5;
			}
		}
		self.handleWaveProgression = function () {
			if (!self.gameStarted) {
				return;
			}
			// Skip wave progression when game is paused (gameSpeed = 0)
			if (gameSpeed === 0) {
				return;
			}
			if (currentWave < totalWaves) {
				waveTimer += gameSpeed;
				if (waveTimer >= nextWaveTime) {
					waveTimer = 0;
					currentWave++;
					waveInProgress = true;
					waveSpawned = false;
					if (currentWave != 1) {
						var notification = game.addChild(new Notification("Wave " + currentWave + " incoming!"));
						notification.x = 2048 / 2;
						notification.y = grid.height - 150;
					}
				}
			}
		};
		self.handleWaveProgression();
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x333333
});

/**** 
* Game Code
****/ 
var isHidingUpgradeMenu = false;
function hideUpgradeMenu(menu) {
	if (isHidingUpgradeMenu) {
		return;
	}
	isHidingUpgradeMenu = true;
	tween(menu, {
		y: 2732 + 225
	}, {
		duration: 150,
		easing: tween.easeIn,
		onFinish: function onFinish() {
			menu.destroy();
			isHidingUpgradeMenu = false;
		}
	});
}
var CELL_SIZE = 76;
var pathId = 1;
var maxScore = 0;
var enemies = [];
var towers = [];
var bullets = [];
var defenses = [];
var selectedTower = null;
// Game difficulty settings
var gameSettings = {
	difficulty: storage.selectedDifficulty || 'normal',
	selectedEmpire: storage.selectedEmpire || 'none'
};
var gold = gameSettings.selectedEmpire === 'Ottoman' ? 100 : 80;
// Generate a new session seed on each reload/restart
var reloadCounter = storage.reloadCounter || 0;
reloadCounter++;
storage.reloadCounter = reloadCounter;
var gameSessionSeed = reloadCounter * 12345 + Math.floor(Date.now() / 1000); // Unique seed per reload
// Track if difficulty has been selected and game can start
var gameStartAllowed = false;
var lives = 10;
var currentWave = 0;
var totalWaves = 5;
var waveTimer = 0;
var waveInProgress = false;
var waveSpawned = false;
var nextWaveTime = 12000 / 2;
var gameSpeed = 1.0; // 1.0 = normal, 0.5 = slow, 2.0 = fast
var gameSpeedOptions = ['slow', 'normal', 'fast', 'ultra', 'paused'];
var currentSpeedIndex = 1; // Start with normal (index 1)
var sourceTower = null;
var enemiesToSpawn = 10; // Default number of enemies per wave
var goldText = new Text2('Gold: ' + gold, {
	size: 60,
	fill: 0xFFD700,
	weight: 800
});
goldText.anchor.set(0.5, 0.5);
var livesText = new Text2('Lives: ' + lives, {
	size: 60,
	fill: 0x00FF00,
	weight: 800
});
livesText.anchor.set(0.5, 0.5);
var topMargin = 50;
var centerX = 2048 / 2;
var spacing = 400;
LK.gui.top.addChild(goldText);
LK.gui.top.addChild(livesText);
livesText.x = -spacing;
livesText.y = topMargin;
goldText.x = spacing;
goldText.y = topMargin;
function updateUI() {
	goldText.setText('Gold: ' + gold);
	livesText.setText('Lives: ' + lives);
}
function setGold(value) {
	gold = value;
	updateUI();
}
var debugLayer = new Container();
var towerLayer = new Container();
// Create three separate layers for enemy hierarchy
var enemyLayerBottom = new Container(); // For normal enemies
var enemyLayerMiddle = new Container(); // For shadows
var enemyLayerTop = new Container(); // For flying enemies
var enemyLayer = new Container(); // Main container to hold all enemy layers
// Add layers in correct order (bottom first, then middle for shadows, then top)
enemyLayer.addChild(enemyLayerBottom);
enemyLayer.addChild(enemyLayerMiddle);
enemyLayer.addChild(enemyLayerTop);
var grid = new Grid(24, 29 + 6);
grid.x = 150;
grid.y = 200 - CELL_SIZE * 4;
grid.pathFind();
grid.renderDebug();
debugLayer.addChild(grid);
game.addChild(debugLayer);
game.addChild(towerLayer);
game.addChild(enemyLayer);
var offset = 0;
var towerPreview = new TowerPreview();
game.addChild(towerPreview);
towerPreview.visible = false;
var isDragging = false;
function wouldBlockPath(gridX, gridY) {
	var cells = [];
	for (var i = 0; i < 2; i++) {
		for (var j = 0; j < 2; j++) {
			var cell = grid.getCell(gridX + i, gridY + j);
			if (cell) {
				cells.push({
					cell: cell,
					originalType: cell.type
				});
				cell.type = 1;
			}
		}
	}
	var blocked = grid.pathFind();
	for (var i = 0; i < cells.length; i++) {
		cells[i].cell.type = cells[i].originalType;
	}
	grid.pathFind();
	grid.renderDebug();
	return blocked;
}
function getTowerCost(towerType) {
	var cost = 10;
	switch (towerType) {
		case 'rapid':
			cost = 30;
			break;
		case 'sniper':
			cost = 50;
			break;
		case 'splash':
			cost = 50;
			break;
		case 'slow':
			cost = gameSettings.difficulty === 'hardcore' ? 100 : 50;
			break;
		case 'poison':
			cost = gameSettings.difficulty === 'hardcore' ? 100 : 50;
			break;
	}
	// Apply Easy mode discount
	if (gameSettings.difficulty === 'easy') {
		cost = Math.floor(cost / 2);
	}
	// Apply Hungarian empire bonus: 5 gold less on normal and higher difficulties
	if (gameSettings.selectedEmpire === 'Hungarian' && gameSettings.difficulty !== 'easy') {
		cost = Math.max(5, cost - 5); // Minimum cost of 5 gold
	}
	// Apply Scotch empire bonus: 3 gold less for all towers
	if (gameSettings.selectedEmpire === 'Scotch') {
		cost = Math.max(5, cost - 3); // Minimum cost of 5 gold
	}
	return cost;
}
function getTowerSellValue(totalValue) {
	return waveIndicator && waveIndicator.gameStarted ? Math.floor(totalValue * 0.6) : totalValue;
}
function placeTower(gridX, gridY, towerType) {
	var towerCost = getTowerCost(towerType);
	if (gold >= towerCost) {
		var tower = new Tower(towerType || 'default');
		tower.placeOnGrid(gridX, gridY);
		towerLayer.addChild(tower);
		towers.push(tower);
		setGold(gold - towerCost);
		grid.pathFind();
		grid.renderDebug();
		return true;
	} else {
		var notification = game.addChild(new Notification("Not enough gold!"));
		notification.x = 2048 / 2;
		notification.y = grid.height - 50;
		return false;
	}
}
game.down = function (x, y, obj) {
	// Block all interactions if difficulty not selected
	if (!gameStartAllowed) {
		return;
	}
	var upgradeMenuVisible = game.children.some(function (child) {
		return child instanceof UpgradeMenu;
	});
	if (upgradeMenuVisible) {
		return;
	}
	for (var i = 0; i < sourceTowers.length; i++) {
		var tower = sourceTowers[i];
		if (x >= tower.x - tower.width / 2 && x <= tower.x + tower.width / 2 && y >= tower.y - tower.height / 2 && y <= tower.y + tower.height / 2) {
			// Completely recreate tower preview to ensure clean state
			if (towerPreview && towerPreview.parent) {
				game.removeChild(towerPreview);
				towerPreview.destroy();
			}
			towerPreview = new TowerPreview();
			game.addChild(towerPreview);
			towerPreview.visible = true;
			isDragging = true;
			towerPreview.towerType = tower.towerType;
			towerPreview.updateAppearance();
			// Apply the same offset as in move handler to ensure consistency when starting drag
			towerPreview.snapToGrid(x, y - CELL_SIZE * 1.5);
			break;
		}
	}
};
game.move = function (x, y, obj) {
	// Block all interactions if difficulty not selected
	if (!gameStartAllowed) {
		return;
	}
	if (isDragging) {
		// Shift the y position upward by 1.5 tiles to show preview above finger
		towerPreview.snapToGrid(x, y - CELL_SIZE * 1.5);
	}
};
game.up = function (x, y, obj) {
	// Block all interactions if difficulty not selected
	if (!gameStartAllowed) {
		return;
	}
	var clickedOnTower = false;
	for (var i = 0; i < towers.length; i++) {
		var tower = towers[i];
		var towerLeft = tower.x - tower.width / 2;
		var towerRight = tower.x + tower.width / 2;
		var towerTop = tower.y - tower.height / 2;
		var towerBottom = tower.y + tower.height / 2;
		if (x >= towerLeft && x <= towerRight && y >= towerTop && y <= towerBottom) {
			clickedOnTower = true;
			break;
		}
	}
	var upgradeMenus = game.children.filter(function (child) {
		return child instanceof UpgradeMenu;
	});
	if (upgradeMenus.length > 0 && !isDragging && !clickedOnTower) {
		var clickedOnMenu = false;
		for (var i = 0; i < upgradeMenus.length; i++) {
			var menu = upgradeMenus[i];
			var menuWidth = 2048;
			var menuHeight = 450;
			var menuLeft = menu.x - menuWidth / 2;
			var menuRight = menu.x + menuWidth / 2;
			var menuTop = menu.y - menuHeight / 2;
			var menuBottom = menu.y + menuHeight / 2;
			if (x >= menuLeft && x <= menuRight && y >= menuTop && y <= menuBottom) {
				clickedOnMenu = true;
				break;
			}
		}
		if (!clickedOnMenu) {
			for (var i = 0; i < upgradeMenus.length; i++) {
				var menu = upgradeMenus[i];
				hideUpgradeMenu(menu);
			}
			for (var i = game.children.length - 1; i >= 0; i--) {
				if (game.children[i].isTowerRange) {
					game.removeChild(game.children[i]);
				}
			}
			selectedTower = null;
			grid.renderDebug();
		}
	}
	if (isDragging) {
		isDragging = false;
		if (towerPreview.canPlace) {
			if (!wouldBlockPath(towerPreview.gridX, towerPreview.gridY)) {
				placeTower(towerPreview.gridX, towerPreview.gridY, towerPreview.towerType);
			} else {
				var notification = game.addChild(new Notification("Tower would block the path!"));
				notification.x = 2048 / 2;
				notification.y = grid.height - 50;
			}
		} else if (towerPreview.blockedByEnemy) {
			var notification = game.addChild(new Notification("Cannot build: Enemy in the way!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 50;
		} else if (towerPreview.visible) {
			var notification = game.addChild(new Notification("Cannot build here!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 50;
		}
		towerPreview.visible = false;
		// Completely destroy and recreate tower preview to ensure it's completely clean
		if (towerPreview.parent) {
			game.removeChild(towerPreview);
			towerPreview.destroy();
			towerPreview = new TowerPreview();
			towerPreview.visible = false;
		}
		if (isDragging) {
			var upgradeMenus = game.children.filter(function (child) {
				return child instanceof UpgradeMenu;
			});
			for (var i = 0; i < upgradeMenus.length; i++) {
				upgradeMenus[i].destroy();
			}
		}
	}
};
var waveIndicator = new WaveIndicator();
waveIndicator.x = 2048 / 2;
waveIndicator.y = 2732 - 80;
game.addChild(waveIndicator);
// Always show main menu at game start for difficulty selection
var mainMenu = new MainMenu();
game.addChild(mainMenu);
var speedControl = new SpeedControl();
speedControl.x = -100; // Position closer to center to be adjacent to music control
speedControl.y = topMargin;
LK.gui.top.addChild(speedControl);
var musicControl = new MusicControl();
musicControl.x = 100; // Position closer to center to be adjacent to speed control
musicControl.y = topMargin;
LK.gui.top.addChild(musicControl);
var towerTypes = ['default', 'rapid', 'sniper', 'splash', 'slow', 'poison'];
var sourceTowers = [];
var towerSpacing = 300; // Increase spacing for larger towers
var startX = 2048 / 2 - towerTypes.length * towerSpacing / 2 + towerSpacing / 2;
var towerY = 2732 - CELL_SIZE * 3 - 90;
for (var i = 0; i < towerTypes.length; i++) {
	var tower = new SourceTower(towerTypes[i]);
	tower.x = startX + i * towerSpacing;
	tower.y = towerY;
	towerLayer.addChild(tower);
	sourceTowers.push(tower);
}
sourceTower = null;
enemiesToSpawn = 10;
game.update = function () {
	if (waveInProgress) {
		if (!waveSpawned) {
			waveSpawned = true;
			// Just update pathfinding for the existing maze, don't regenerate it
			grid.pathFind();
			grid.renderDebug();
			// Every wave spawns 10 enemies on wave 1, then 25% more each wave
			var enemyCount = Math.floor(10 * Math.pow(1.25, currentWave - 1));
			// England empire: 3 fewer normal enemies per wave
			if (gameSettings.selectedEmpire === 'England') {
				enemyCount = Math.max(1, enemyCount - 3); // Minimum 1 enemy
			}
			// Byzantine empire: 3 more enemies per wave
			if (gameSettings.selectedEmpire === 'Byzantine') {
				enemyCount = enemyCount + 3;
			}
			// Determine flying enemy count based on wave number
			var flyingEnemyCount = 0;
			if (currentWave === 1) {
				flyingEnemyCount = 0;
			} else if (currentWave === 2) {
				flyingEnemyCount = 1;
			} else if (currentWave === 3 || currentWave === 4) {
				flyingEnemyCount = 3;
			} else if (currentWave === 5) {
				flyingEnemyCount = 5;
				enemyCount = 9; // Total enemies for wave 5
			}
			// Spawn the appropriate number of enemies
			for (var i = 0; i < enemyCount; i++) {
				// Determine enemy type based on specific wave requirements
				var waveType = 'normal'; // Default to normal
				var immuneCount = 0;
				var angryCount = 0;
				// Set specific immune enemy counts per wave
				if (currentWave === 2 || currentWave === 3 || currentWave === 4 || currentWave === 5) {
					immuneCount = 3;
				}
				// Hard mode: more immune and angry enemies
				if (gameSettings.difficulty === 'hard') {
					// Wave 1: 2 immune enemies
					if (currentWave === 1) {
						immuneCount = 2;
					}
					// Waves 2,3,4: 3 angry enemies each
					if (currentWave === 2 || currentWave === 3 || currentWave === 4) {
						angryCount = 3;
						immuneCount = 3;
					}
					// Wave 5: keep existing counts
					if (currentWave === 5) {
						angryCount = 3;
						immuneCount = 5;
					}
				} else {
					// Set angry enemy spawning: 0 in waves 1-3, 2 in waves 4-5
					if (currentWave === 4) {
						angryCount = 2;
					} else if (currentWave === 5) {
						angryCount = 2;
					}
				}
				// Set bad enemy spawning: only in wave 5
				var badCount = 0;
				if (currentWave === 5) {
					badCount = 1; // 1 bad enemy
					immuneCount = 5; // 5 immune enemies
					angryCount = 3; // 3 angry enemies
				}
				// Make the first 'angryCount' enemies angry for this wave
				if (i < angryCount) {
					waveType = 'angry';
				}
				// Make the next 'badCount' enemies bad for this wave (after angry enemies)
				else if (i >= angryCount && i < angryCount + badCount) {
					waveType = 'bad';
				}
				// Make the last 'immuneCount' enemies immune for this wave (but not if already angry or bad)
				else if (i >= enemyCount - immuneCount) {
					waveType = 'immune';
				}
				// England empire: guarantee 1 bad enemy in wave 5
				if (gameSettings.selectedEmpire === 'England' && currentWave === 5) {
					// Ensure at least one bad enemy spawns
					if (i === 0) {
						waveType = 'bad'; // First enemy in wave 5 is always bad for England
					} else if (i < angryCount) {
						waveType = 'angry';
					} else if (i >= angryCount && i < angryCount + badCount && badCount > 1) {
						waveType = 'bad';
					} else if (i >= enemyCount - immuneCount) {
						waveType = 'immune';
					}
				} else if (gameSettings.selectedEmpire === 'England' && currentWave === 5 && i === enemyCount - 1) {
					waveType = 'bad'; // Last enemy in wave 5 is always bad for England
				}
				var enemy = new Enemy(waveType);
				// All enemies are now ground enemies, add to bottom layer
				enemyLayerBottom.addChild(enemy);
				// Scale difficulty with wave number but don't apply to boss
				// as bosses already have their health multiplier
				// Use exponential scaling for health
				var healthMultiplier = Math.pow(1.12, currentWave); // ~20% increase per wave
				enemy.maxHealth = Math.round(enemy.maxHealth * healthMultiplier);
				enemy.health = enemy.maxHealth;
				// Increment speed slightly with wave number
				//enemy.speed = enemy.speed + currentWave * 0.002;
				// All enemy types now spawn in the middle 6 tiles at the top spacing
				var gridWidth = 24;
				var midPoint = Math.floor(gridWidth / 2); // 12
				// Find a column that isn't occupied by another enemy that's not yet in view
				var availableColumns = [];
				for (var col = midPoint - 3; col < midPoint + 3; col++) {
					var columnOccupied = false;
					// Check if any enemy is already in this column but not yet in view
					for (var e = 0; e < enemies.length; e++) {
						if (enemies[e].cellX === col && enemies[e].currentCellY < 4) {
							columnOccupied = true;
							break;
						}
					}
					if (!columnOccupied) {
						availableColumns.push(col);
					}
				}
				// If all columns are occupied, use original random method
				var spawnX;
				if (availableColumns.length > 0) {
					// Choose a random unoccupied column
					spawnX = availableColumns[Math.floor(Math.random() * availableColumns.length)];
				} else {
					// Fallback to random if all columns are occupied
					spawnX = midPoint - 3 + Math.floor(Math.random() * 6); // x from 9 to 14
				}
				var spawnY = -1 - Math.random() * 5; // Random distance above the grid for spreading
				enemy.cellX = spawnX;
				enemy.cellY = 5; // Position after entry
				enemy.currentCellX = spawnX;
				enemy.currentCellY = spawnY;
				enemy.waveNumber = currentWave;
				enemies.push(enemy);
			}
		}
		var currentWaveEnemiesRemaining = false;
		for (var i = 0; i < enemies.length; i++) {
			if (enemies[i].waveNumber === currentWave) {
				currentWaveEnemiesRemaining = true;
				break;
			}
		}
		if (waveSpawned && !currentWaveEnemiesRemaining) {
			waveInProgress = false;
			waveSpawned = false;
			var notification = game.addChild(new Notification("Wave " + currentWave + " completed!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 150;
			// Automatically advance to next wave if all enemies are gone
			if (currentWave < totalWaves) {
				waveTimer = nextWaveTime; // Trigger next wave immediately
			}
		}
	}
	for (var a = enemies.length - 1; a >= 0; a--) {
		var enemy = enemies[a];
		if (enemy.health <= 0) {
			for (var i = 0; i < enemy.bulletsTargetingThis.length; i++) {
				var bullet = enemy.bulletsTargetingThis[i];
				bullet.targetEnemy = null;
			}
			// Give gold for every enemy killed - Hard mode gives 5 gold, others give 10
			var goldEarned = gameSettings.difficulty === 'hard' ? 5 : 10;
			var goldIndicator = new GoldIndicator(goldEarned, enemy.x, enemy.y);
			game.addChild(goldIndicator);
			setGold(gold + goldEarned);
			// Add a notification for boss defeat
			if (enemy.isBoss) {
				var notification = game.addChild(new Notification("Boss defeated! +" + goldEarned + " gold!"));
				notification.x = 2048 / 2;
				notification.y = grid.height - 150;
			}
			updateUI();
			// Clean up shadow if it's a flying enemy
			if (enemy.isFlying && enemy.shadow) {
				enemyLayerMiddle.removeChild(enemy.shadow);
				enemy.shadow = null;
			}
			// Remove enemy from the appropriate layer
			if (enemy.isFlying) {
				enemyLayerTop.removeChild(enemy);
			} else {
				enemyLayerBottom.removeChild(enemy);
			}
			enemies.splice(a, 1);
			continue;
		}
		if (grid.updateEnemy(enemy)) {
			// Clean up shadow if it's a flying enemy
			if (enemy.isFlying && enemy.shadow) {
				enemyLayerMiddle.removeChild(enemy.shadow);
				enemy.shadow = null;
			}
			// Remove enemy from the appropriate layer
			if (enemy.isFlying) {
				enemyLayerTop.removeChild(enemy);
			} else {
				enemyLayerBottom.removeChild(enemy);
			}
			enemies.splice(a, 1);
			lives = Math.max(0, lives - (enemy.type === 'bad' ? 10 : 1));
			updateUI();
			if (lives <= 0) {
				LK.showGameOver();
			}
		}
	}
	for (var i = bullets.length - 1; i >= 0; i--) {
		if (!bullets[i].parent) {
			if (bullets[i].targetEnemy) {
				var targetEnemy = bullets[i].targetEnemy;
				var bulletIndex = targetEnemy.bulletsTargetingThis.indexOf(bullets[i]);
				if (bulletIndex !== -1) {
					targetEnemy.bulletsTargetingThis.splice(bulletIndex, 1);
				}
			}
			bullets.splice(i, 1);
		}
	}
	if (towerPreview.visible) {
		towerPreview.checkPlacement();
	}
	if (currentWave >= totalWaves && enemies.length === 0 && !waveInProgress) {
		LK.showYouWin();
	}
};
// Play war music when game loads
LK.playMusic('warmusic');

===================================================================
--- original.js
+++ change.js
@@ -1370,9 +1370,9 @@
 			case 'Kalmar Union':
 				characteristicsText = "Advantages:\n• Healer range +100%\n• Better healing coverage\n• Improved tower protection";
 				break;
 			case 'Byzantine':
-				characteristicsText = "Advantages:\n• Balanced empire\n• No special bonuses\n• Standard gameplay";
+				characteristicsText = "Advantages:\n• Tower durability +100%\n• Towers have double health\nDisadvantages:\n• +3 enemies per wave\n• Higher enemy pressure";
 				break;
 			default:
 				characteristicsText = "Advantages:\n• Standard empire\n• No special bonuses\n• Balanced gameplay";
 		}
@@ -1748,8 +1748,12 @@
 	// Apply French empire bonus: 20% more tower durability
 	if (gameSettings.selectedEmpire === 'French') {
 		self.maxHealth = Math.floor(self.maxHealth * 1.2); // 20% more health
 	}
+	// Apply Byzantine empire bonus: 100% more tower durability
+	if (gameSettings.selectedEmpire === 'Byzantine') {
+		self.maxHealth = Math.floor(self.maxHealth * 2.0); // 100% more health
+	}
 	self.health = self.maxHealth;
 	// Standardized method to get the current range of the tower
 	self.getRange = function () {
 		// Always calculate range based on tower type and level
@@ -3355,8 +3359,12 @@
 			// England empire: 3 fewer normal enemies per wave
 			if (gameSettings.selectedEmpire === 'England') {
 				enemyCount = Math.max(1, enemyCount - 3); // Minimum 1 enemy
 			}
+			// Byzantine empire: 3 more enemies per wave
+			if (gameSettings.selectedEmpire === 'Byzantine') {
+				enemyCount = enemyCount + 3;
+			}
 			// Determine flying enemy count based on wave number
 			var flyingEnemyCount = 0;
 			if (currentWave === 1) {
 				flyingEnemyCount = 0;