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

/**** 
* Classes
****/ 
var BackgroundManager = Container.expand(function () {
	var self = Container.call(this);
	self.backgrounds = [];
	self.currentBackground = null;
	self.animationActive = false;
	// Method to add a background layer
	self.addBackground = function (assetId, config) {
		config = config || {};
		var background = new Container();
		var bgGraphics = background.attachAsset(assetId, {
			anchorX: config.anchorX || 0.5,
			anchorY: config.anchorY || 0.5,
			x: config.x || 0,
			y: config.y || 0,
			scaleX: config.scaleX || 1,
			scaleY: config.scaleY || 1,
			alpha: config.alpha !== undefined ? config.alpha : 1,
			tint: config.tint || 0xFFFFFF
		});
		background.config = config;
		background.graphics = bgGraphics;
		background.assetId = assetId;
		self.addChild(background);
		self.backgrounds.push(background);
		return background;
	};
	// Method to remove a background
	self.removeBackground = function (background) {
		var index = self.backgrounds.indexOf(background);
		if (index !== -1) {
			self.backgrounds.splice(index, 1);
			self.removeChild(background);
		}
	};
	// Method to animate a background
	self.animateBackground = function (background, properties, config) {
		if (!background || !background.graphics) {
			return;
		}
		config = config || {};
		var duration = config.duration || 1000;
		var easing = config.easing || tween.linear;
		var loop = config.loop || false;
		var _onFinish = config.onFinish;
		// Create the animation
		var _animateFunc = function animateFunc() {
			tween(background.graphics, properties, {
				duration: duration,
				easing: easing,
				onFinish: function onFinish() {
					if (loop && self.animationActive) {
						// Reset properties for looping
						if (config.resetOnLoop) {
							for (var prop in config.resetOnLoop) {
								background.graphics[prop] = config.resetOnLoop[prop];
							}
						}
						_animateFunc();
					} else if (_onFinish) {
						_onFinish();
					}
				}
			});
		};
		self.animationActive = true;
		_animateFunc();
	};
	// Method to stop all animations
	self.stopAnimations = function () {
		self.animationActive = false;
		for (var i = 0; i < self.backgrounds.length; i++) {
			if (self.backgrounds[i].graphics) {
				tween.stop(self.backgrounds[i].graphics);
			}
		}
	};
	// Method to fade between backgrounds
	self.fadeToBackground = function (newBackground, duration, onComplete) {
		duration = duration || 1000;
		if (self.currentBackground && self.currentBackground !== newBackground) {
			// Fade out current background
			tween(self.currentBackground.graphics, {
				alpha: 0
			}, {
				duration: duration / 2,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					self.currentBackground.visible = false;
				}
			});
		}
		// Fade in new background
		newBackground.visible = true;
		newBackground.graphics.alpha = 0;
		tween(newBackground.graphics, {
			alpha: 1
		}, {
			duration: duration / 2,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				self.currentBackground = newBackground;
				if (onComplete) {
					onComplete();
				}
			}
		});
	};
	// Method for parallax scrolling effect
	self.createParallaxEffect = function (backgrounds, baseSpeed) {
		baseSpeed = baseSpeed || 1;
		for (var i = 0; i < backgrounds.length; i++) {
			(function (index) {
				var bg1 = backgrounds[index];
				var speed = baseSpeed * (index + 1) * 0.5; // Each layer moves at different speed
				var bg2 = self.addBackground(bg1.assetId, {
					anchorX: bg1.config.anchorX || 0.5,
					anchorY: bg1.config.anchorY || 0.5,
					x: bg1.graphics.x + bg1.graphics.width,
					y: bg1.config.y || 0,
					scaleX: -1,
					scaleY: bg1.config.scaleY || 1,
					alpha: bg1.config.alpha !== undefined ? bg1.config.alpha : 1,
					tint: bg1.config.tint || 0xFFFFFF
				});
				var moveDistance = bg1.graphics.width;
				var duration = 40000 / speed;
				var _animate = function animate(bg, initialX) {
					// Always animate from current position to current - moveDistance
					self.animateBackground(bg, {
						x: bg.graphics.x - moveDistance
					}, {
						duration: duration,
						easing: tween.linear,
						onFinish: function onFinish() {
							if (self.animationActive) {
								// If the background has fully moved out of view to the left, reset to the right
								if (bg.graphics.x <= -moveDistance / 2) {
									bg.graphics.x = bg.graphics.x + moveDistance * 2;
								}
								_animate(bg, initialX);
							}
						}
					});
				};
				_animate(bg1, bg1.graphics.x);
				_animate(bg2, bg2.graphics.x);
			})(i);
		}
	};
	return self;
});
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 () {
		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
			self.targetEnemy.health -= self.damage;
			if (self.targetEnemy.health <= 0) {
				self.targetEnemy.health = 0;
			}
			// 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)
							otherEnemy.health -= self.damage * 0.5;
							if (otherEnemy.health <= 0) {
								otherEnemy.health = 0;
							}
						}
					}
				}
			} else if (self.type === 'slow') {
				// Prevent slow effect on immune enemies
				if (!self.targetEnemy.isImmune) {
					// Create visual slow effect
					var slowEffect = new EffectIndicator(self.targetEnemy.x, self.targetEnemy.y, 'slow');
					game.addChild(slowEffect);
					// Apply slow effect
					// Make slow percentage scale with tower level (default 50%, up to 80% at max level)
					var slowPct = 0.5;
					if (self.sourceTowerLevel !== undefined) {
						// Scale: 50% at level 1, 60% at 2, 65% at 3, 70% at 4, 75% at 5, 80% at 6
						var slowLevels = [0.5, 0.6, 0.65, 0.7, 0.75, 0.8];
						var idx = Math.max(0, Math.min(5, self.sourceTowerLevel - 1));
						slowPct = slowLevels[idx];
					}
					if (!self.targetEnemy.slowed) {
						self.targetEnemy.originalSpeed = self.targetEnemy.speed;
						self.targetEnemy.speed *= 1 - slowPct; // Slow by X%
						self.targetEnemy.slowed = true;
						self.targetEnemy.slowDuration = 180; // 3 seconds at 60 FPS
					} else {
						self.targetEnemy.slowDuration = 180; // Reset duration
					}
				}
			} 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 = null;
	// Only create and attach cellGraphics when in debug mode
	if (isDebug) {
		cellGraphics = self.attachAsset('cell', {
			anchorX: 0.5,
			anchorY: 0.5,
			alpha: 1
		});
		cellGraphics.tint = Math.random() * 0xffffff;
	}
	var debugArrows = [];
	var numberLabel = new Text2("-", {
		size: 20,
		fill: 0xFFFFFF
	});
	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) {
		// Hide cell gradient when not in debug mode
		if (!isDebug) {
			numberLabel.visible = false;
			numberLabel.alpha = 0; // Also set alpha to 0 to ensure it's completely invisible
			numberLabel.setText(""); // Clear text content when not in debug mode
			// cellGraphics doesn't exist when not in debug mode, so no need to hide it
			// Show wall asset for walls, hide cellGraphics for other types
			if (data.type === 1 && !data.isVisuallyEmptyTower) {
				// Remove existing wall if any
				if (self.wallInstance) {
					self.removeChild(self.wallInstance);
					self.wallInstance = null;
				}
				// Create and add wall asset
				self.wallInstance = new Wall();
				self.addChild(self.wallInstance);
			} else {
				// Remove wall if switching away from wall type
				if (self.wallInstance) {
					self.removeChild(self.wallInstance);
					self.wallInstance = null;
				}
			}
			return;
		}
		// Show cells in debug mode
		if (cellGraphics) {
			cellGraphics.visible = true;
			cellGraphics.alpha = 1;
		}
		switch (data.type) {
			case 0:
			case 2:
				{
					if (data.pathId != pathId) {
						self.removeArrows();
						numberLabel.setText("-");
						if (cellGraphics) {
							cellGraphics.tint = 0x880000;
						}
						return;
					}
					var tint = Math.floor(data.score / maxScore * 0x88);
					var towerInRangeHighlight = false;
					if (selectedTower && data.towersInRange && data.towersInRange.indexOf(selectedTower) !== -1) {
						towerInRangeHighlight = true;
						if (cellGraphics) {
							cellGraphics.tint = 0x0088ff;
						}
					} else {
						if (cellGraphics) {
							cellGraphics.tint = 0x88 - tint << 8 | tint;
						}
					}
					break;
				}
			case 1:
				{
					self.removeArrows();
					if (cellGraphics) {
						cellGraphics.tint = 0xaaaaaa;
					}
					numberLabel.visible = false;
					break;
				}
			case 3:
				{
					self.removeArrows();
					if (cellGraphics) {
						cellGraphics.tint = 0x008800;
					}
					numberLabel.visible = false;
					break;
				}
			case 4:
				{
					self.removeArrows();
					if (cellGraphics) {
						cellGraphics.tint = 0x888888;
					}
					numberLabel.visible = false;
					break;
				}
		}
	};
});
// 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 = 1;
	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
	// Normal enemy uses default values
	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 !== '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;
	}
	// Health bar graphics removed - health system remains intact
	self.update = function () {
		if (self.health <= 0) {
			self.health = 0;
		}
		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
						});
					}
				}
			}
		}
		// Health bar positioning removed
	};
	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: Empty Tower
	9: Wall (from map)
	*/ 
	// Use first map from MAPS array
	var currentMap = MAPS[0];
	var mapHeight = currentMap.length;
	var mapWidth = currentMap[0].length;
	for (var i = 0; i < gridWidth; i++) {
		for (var j = 0; j < gridHeight; j++) {
			var cell = self.cells[i][j];
			var cellType = 0; // Default to empty
			// Check if coordinates are within map bounds
			if (j < mapHeight && i < mapWidth) {
				var mapValue = currentMap[j][i]; // Note: map is [row][col], grid is [col][row]
				// Convert map values to cell types
				switch (mapValue) {
					case 0:
						// empty cell
						cellType = 0;
						break;
					case 1:
						// player base
						cellType = 3; // Goal
						self.goals.push(cell);
						break;
					case 22:
						cell.orientation = Math.PI;
					// fallthrough
					case 2:
						// enemy base
						cellType = 2; // Spawn
						self.spawns.push(cell);
						break;
					case 3:
						// empty tower
						cellType = 4;
						break;
					case 9:
						// wall
						cellType = 1;
						break;
					default:
						cellType = 0;
				}
			} else {
				// Outside map bounds, default to wall
				cellType = 1;
			}
			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 >= 0 && j <= gridHeight - 5) {
				var debugCell = new DebugCell();
				self.addChild(debugCell);
				debugCell.cell = cell;
				debugCell.x = i * CELL_SIZE;
				debugCell.y = (j + mapGridOffset) * CELL_SIZE;
				cell.debugCell = debugCell;
			}
		}
	}
	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) {
				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.left.type != 1) {
					processNode(node.upLeft, targetScore, node);
				}
				if (node.up && node.right && node.up.type != 1 && node.right.type != 1) {
					processNode(node.upRight, targetScore, node);
				}
				if (node.down && node.right && node.down.type != 1 && node.right.type != 1) {
					processNode(node.downRight, targetScore, node);
				}
				if (node.down && node.left && node.down.type != 1 && node.left.type != 1) {
					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);
			}
		}
		for (var a = 0; a < self.spawns.length; a++) {
			if (self.spawns[a].pathId != pathId) {
				console.warn("Spawn blocked");
				return true;
			}
		}
		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 < mapGridOffset) {
				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 >= mapGridOffset;
		// If enemy hasn't reached the entry area yet, just move down vertically
		if (!hasReachedEntryArea) {
			// Move directly downward
			enemy.currentCellY += enemy.speed;
			// 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 >= mapGridOffset) {
				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;
			enemy.currentCellY += Math.sin(angle) * enemy.speed;
			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) {
			enemy.currentTarget = cell.targets[0];
		}
		if (enemy.currentTarget) {
			if (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) {
				enemy.cellX = Math.round(enemy.currentCellX);
				enemy.cellY = Math.round(enemy.currentCellY);
				enemy.currentTarget = undefined;
				return;
			}
			var angle = Math.atan2(oy, ox);
			enemy.currentCellX += Math.cos(angle) * enemy.speed;
			enemy.currentCellY += Math.sin(angle) * enemy.speed;
		}
		enemy.x = grid.x + enemy.currentCellX * CELL_SIZE;
		enemy.y = grid.y + enemy.currentCellY * CELL_SIZE;
	};
});
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 () {
		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;
			// Get the type of the current wave (which is now the next wave)
			var waveType = waveIndicator.getWaveTypeName(currentWave);
			var enemyCount = waveIndicator.getEnemyCount(currentWave);
			var notification = game.addChild(new Notification("Wave " + currentWave + " (" + waveType + " - " + enemyCount + " enemies) 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 SelectionCircle = Container.expand(function () {
	var self = Container.call(this);
	self.startX = 0;
	self.startY = 0;
	self.currentRadius = 0;
	var circleGraphics = self.attachAsset('circleSelector', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	circleGraphics.alpha = 0.3;
	circleGraphics.tint = 0x00FF00;
	circleGraphics.width = 1;
	circleGraphics.height = 1;
	self.updateCircle = function (endX, endY) {
		var dx = endX - self.startX;
		var dy = endY - self.startY;
		self.currentRadius = Math.sqrt(dx * dx + dy * dy);
		circleGraphics.width = self.currentRadius * 2;
		circleGraphics.height = self.currentRadius * 2;
	};
	self.setPosition = function (x, y) {
		self.startX = x;
		self.startY = y;
		self.x = x;
		self.y = y;
	};
	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
	});
	baseGraphics.tint = 0xAAAAAA;
	var towerCost = getTowerCost(self.towerType);
	// Add shadow for tower type label
	var typeLabelShadow = new Text2(self.towerType.charAt(0).toUpperCase() + self.towerType.slice(1), {
		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 typeLabel = new Text2(self.towerType.charAt(0).toUpperCase() + self.towerType.slice(1), {
		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.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 Tower = Container.expand(function (headquarters, orientation, playerIndex) {
	var self = Container.call(this);
	self.isHeadquarters = headquarters || false;
	self.baseOrientation = orientation;
	self.playerIndex = playerIndex !== undefined ? playerIndex : 0;
	self.isActivated = self.isHeadquarters;
	self.activationThreshold = 10;
	self.currentShares = 0;
	self.capturingPlayer = -1;
	self.activationGauge = null;
	self.id = self.isHeadquarters ? 'headquarters' : 'default';
	self.level = 1;
	self.maxLevel = 6;
	self.gridX = 0;
	self.gridY = 0;
	self.isProducing = false;
	self.range = 3 * CELL_SIZE;
	self.health = isDebug ? self.isHeadquarters ? 4 : 2 : self.isHeadquarters ? 30 : 10;
	self.maxHealth = isDebug ? self.isHeadquarters ? 4 : 2 : self.isHeadquarters ? 30 : 10;
	// 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
				if (self.level === self.maxLevel) {
					return 12 * CELL_SIZE; // Significantly increased range for max level
				}
				return (5 + (self.level - 1) * 0.8) * CELL_SIZE;
			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
				return (3.2 + (self.level - 1) * 0.5) * CELL_SIZE;
			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 = 1;
	self.lastFired = 0;
	self.targetEnemy = null;
	self.fireRate = 60;
	self.damage = 1;
	self.range = 3 * CELL_SIZE;
	self.bulletSpeed = 5;
	// Create appropriate graphics based on tower type
	var baseGraphics;
	if (self.isHeadquarters) {
		baseGraphics = self.attachAsset('headquarterBase', {
			anchorX: 0.5,
			anchorY: 0.25,
			width: 150,
			height: 150
		});
		baseGraphics.rotation = orientation || 0;
	} else {
		baseGraphics = self.attachAsset('towerBase', {
			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;
	}
	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 * 2 + dotSpacing * (i + 1);
		dot.y = CELL_SIZE * 1.3; //0.7
		// Hide level indicators for enemy towers (playerIndex != 0)
		if (self.playerIndex !== 0) {
			dot.visible = false;
		}
		self.addChild(dot);
		levelIndicators.push(dot);
	}
	var activationGaugeContainer = new Container();
	self.addChild(activationGaugeContainer);
	activationGaugeContainer.y = CELL_SIZE * 0.9;
	self.activationGauge = activationGaugeContainer;
	self.activationGauge.visible = false;
	var gunContainer = new Container();
	self.addChild(gunContainer);
	var gunGraphics;
	var prismGraphics;
	if (self.isHeadquarters) {
		gunGraphics = gunContainer.attachAsset('headquarterTurret', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 125,
			height: 125
		});
		prismGraphics = gunContainer.attachAsset('prism', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 100,
			height: 100
		});
	} else {
		gunGraphics = gunContainer.attachAsset('turret', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 50,
			height: 65
		});
		prismGraphics = gunContainer.attachAsset('prism', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 50,
			height: 50
		});
	}
	prismGraphics.visible = self.isProducing;
	gunGraphics.visible = !self.isProducing;
	//gunGraphicsOffsetRatio = 0.33 * Math.abs(gunGraphics.height - gunGraphics.width) / gunGraphics.height;
	gunGraphicsOffsetRatio = self.isHeadquarters ? 0.15 : -0.15;
	if (!self.isProducing) {
		if (orientation) {
			gunGraphics.y = -gunGraphics.height * gunGraphicsOffsetRatio;
			gunGraphics.rotation = orientation;
		} else {
			gunGraphics.y = gunGraphics.height * gunGraphicsOffsetRatio;
		}
	}
	// Tint turret graphics based on player
	if (self.playerIndex === 0) {
		gunGraphics.tint = teamColors[0]; // Player color
		prismGraphics.tint = teamColors[0];
	} else if (self.playerIndex === 1) {
		gunGraphics.tint = teamColors[1]; // Enemy color
		prismGraphics.tint = teamColors[1];
	} else {
		gunGraphics.tint = 0xAAAAAA; // Gray for neutral
		prismGraphics.tint = 0xAAAAAA;
	}
	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.updateActivation = function (fromPlayerIndex) {
		if (self.isActivated && self.playerIndex === fromPlayerIndex) {
			return;
		}
		if (self.capturingPlayer === -1) {
			self.capturingPlayer = fromPlayerIndex;
		}
		if (self.capturingPlayer === fromPlayerIndex) {
			self.currentShares++;
		} else {
			self.currentShares--;
		}
		if (self.currentShares <= 0) {
			self.currentShares = 0;
			if (self.isActivated) {
				self.deactivate();
			}
			self.capturingPlayer = -1;
		} else if (self.currentShares >= self.activationThreshold) {
			self.currentShares = self.activationThreshold;
			if (!self.isActivated) {
				self.activate(self.capturingPlayer);
			}
		}
		self.updateActivationGaugeVisuals();
	};
	self.activate = function (newPlayerIndex) {
		self.isActivated = true;
		self.playerIndex = newPlayerIndex;
		gunContainer.visible = true;
		var baseGraphics = self.children[0];
		var gunGraphics = gunContainer.children[0];
		var prismGraphics = gunContainer.children[1];
		if (self.playerIndex == 0) {
			baseGraphics.tint = teamColors[0];
			gunGraphics.tint = teamColors[0];
			prismGraphics.tint = teamColors[0];
		} else if (self.playerIndex == 1) {
			baseGraphics.tint = teamColors[1];
			gunGraphics.tint = teamColors[1];
			prismGraphics.tint = teamColors[1];
		}
		if (self.activationGauge) {
			self.activationGauge.visible = false;
		}
	};
	self.deactivate = function () {
		self.isActivated = false;
		self.playerIndex = -1;
		gunContainer.visible = false;
		var baseGraphics = self.children[0];
		var gunGraphics = gunContainer.children[0];
		var prismGraphics = gunContainer.children[1];
		baseGraphics.tint = 0xAAAAAA;
		gunGraphics.tint = 0xAAAAAA;
		prismGraphics.tint = 0xAAAAAA;
		self.updateActivationGaugeVisuals();
	};
	self.updateActivationGaugeVisuals = function () {
		if (!self.activationGauge) {
			return;
		}
		self.activationGauge.y = 0; // Center the gauge on the tower
		self.activationGauge.removeChildren();
		if (self.currentShares > 0 && !self.isActivated) {
			self.activationGauge.visible = true;
			var totalDots = 12;
			var radius = CELL_SIZE / 2.5;
			var dotsToShow = Math.ceil(self.currentShares / self.activationThreshold * totalDots);
			var playerColor = 0x0000FF; // Default/neutral color
			if (self.capturingPlayer === 0) {
				playerColor = teamColors[0]; // Player color
			} else if (self.capturingPlayer === 1) {
				playerColor = teamColors[1]; // Enemy color
			}
			for (var i = 0; i < totalDots; i++) {
				var angle = i / totalDots * Math.PI * 2 - Math.PI / 2; // Start from top
				var dot = self.activationGauge.attachAsset('towerLevelIndicator', {
					anchorX: 0.5,
					anchorY: 0.5,
					width: 12,
					height: 12
				});
				dot.x = Math.cos(angle) * radius;
				dot.y = Math.sin(angle) * radius;
				if (i < dotsToShow) {
					dot.tint = playerColor;
					dot.alpha = 1.0;
				} else {
					dot.tint = 0x666666;
					dot.alpha = 0.4;
				}
			}
		} else {
			self.activationGauge.visible = false;
		}
	};
	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++;
				// 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()) {
				// 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 () {
		if (!self.isActivated) {
			return;
		}
		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);
			gunContainer.rotation = angle;
			if (LK.ticks - self.lastFired >= self.fireRate) {
				self.fire();
				self.lastFired = LK.ticks;
			}
		}
	};
	self.down = function (x, y, obj) {
		if (!self.isActivated) {
			return;
		}
		// Don't show upgrade menu for enemy towers
		if (self.playerIndex !== 0) {
			return;
		}
		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 () {
		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 bullet = new Bullet(bulletX, bulletY, self.targetEnemy, self.damage, self.bulletSpeed);
				// Set bullet type based on tower type
				bullet.type = self.id;
				// For slow tower, pass level for scaling slow effect
				if (self.id === 'slow') {
					bullet.sourceTowerLevel = self.level;
				}
				// 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 'slow':
						bullet.children[0].tint = 0x9900FF;
						bullet.children[0].width = 35;
						bullet.children[0].height = 35;
						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();
	};
	self.changeTowerMode = function () {
		// Toggle the tower's producing mode
		self.isProducing = !self.isProducing;
		if (self.isProducing) {
			// New mode is "Generator" - call generator mode function
			self.activateGeneratorMode();
		} else {
			// New mode is "Defense" - call defense mode function
			self.activateDefenseMode();
		}
	};
	self.animatePrism = function () {
		var prismGraphics = gunContainer.children[1]; // prism is second child
		// Continuous rotation animation
		tween(prismGraphics, {
			rotation: prismGraphics.rotation + Math.PI * 2
		}, {
			duration: 8000,
			// 8 seconds for full rotation
			easing: tween.linear,
			onFinish: function onFinish() {
				// Restart rotation when complete
				self.animatePrism();
			}
		});
		// Tint variation animation - cycle through colors
		var tintColors = [0xFFFFFF, 0xFFE0E0, 0xE0FFFF, 0xE0FFE0, 0xFFFFE0, 0xF0E0FF];
		var currentTintIndex = 0;
		function animateTint() {
			var nextIndex = (currentTintIndex + 1) % tintColors.length;
			tween(prismGraphics, {
				tint: tintColors[nextIndex]
			}, {
				duration: 2000,
				// 2 seconds per tint transition
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					currentTintIndex = nextIndex;
					animateTint(); // Continue tint animation
				}
			});
		}
		animateTint(); // Start tint animation
	};
	self.activateGeneratorMode = function () {
		console.log("Tower activating generator mode at", self.gridX, self.gridY);
		// Update graphics visibility for generator mode
		var prismGraphics = gunContainer.children[1]; // prism is second child
		var gunGraphics = gunContainer.children[0]; // gun is first child
		prismGraphics.visible = true;
		gunGraphics.visible = false;
		if (self.baseOrientation) {
			prismGraphics.y = -prismGraphics.height * 0.33;
		} else {
			prismGraphics.y = prismGraphics.height * 0.33;
		}
		// Start prism animation
		self.animatePrism();
		// Update button text in any open upgrade menu
		var upgradeMenus = game.children.filter(function (child) {
			return child instanceof UpgradeMenu && child.tower === self;
		});
		for (var i = 0; i < upgradeMenus.length; i++) {
			if (upgradeMenus[i].updateButtonText) {
				upgradeMenus[i].updateButtonText('Defense mode');
			}
		}
	};
	self.activateDefenseMode = function () {
		// Update graphics visibility for defense mode
		var prismGraphics = gunContainer.children[1]; // prism is second child
		var gunGraphics = gunContainer.children[0]; // gun is first child
		prismGraphics.visible = false;
		gunGraphics.visible = true;
		if (self.baseOrientation) {
			gunGraphics.y = -gunGraphics.height * 0.15;
			gunGraphics.rotation = self.baseOrientation;
		} else {
			gunGraphics.y = gunGraphics.height * 0.15;
		}
		// Stop prism animations
		tween.stop(prismGraphics, {
			rotation: true,
			tint: true
		});
		// Reset prism to default state
		prismGraphics.rotation = 0;
		prismGraphics.tint = 0xFFFFFF;
		// Update button text in any open upgrade menu
		var upgradeMenus = game.children.filter(function (child) {
			return child instanceof UpgradeMenu && child.tower === self;
		});
		for (var i = 0; i < upgradeMenus.length; i++) {
			if (upgradeMenus[i].updateButtonText) {
				upgradeMenus[i].updateButtonText('Generator mode');
			}
		}
	};
	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('towerpreview', {
		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(false, undefined, 0); // Pass false for headquarters, undefined orientation, playerIndex 0 for player
		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;
		previewGraphics.tint = 0xAAAAAA;
		if (!self.canPlace || !self.hasEnoughGold) {
			previewGraphics.tint = 0xFF0000;
		}
	};
	self.updatePlacementStatus = function () {
		var validGridPlacement = true;
		if (self.gridY <= mapGridOffset || self.gridY + 1 >= grid.cells[0].length - mapGridOffset) {
			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 < mapGridOffset) {
					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 Unit = 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 = 1;
	self.health = self.maxHealth;
	self.bulletsTargetingThis = [];
	self.waveNumber = currentWave;
	self.health = self.maxHealth;
	self.enemyHQ = null; // Store reference to enemy HQ
	self.isIdle = false; // Track if unit is idle
	self.idleBaseX = 0; // Base position for idle animation
	self.idleBaseY = 0; // Base position for idle animation
	self.idleAnimationActive = false; // Track if idle animation is running
	self.isSelected = false; // Track if unit is selected
	self.selectionIndicator = null; // Visual indicator for selection
	self.targetCellX = null; // Target cell X coordinate
	self.targetCellY = null; // Target cell Y coordinate
	self.movementSpeed = 0.05; // Movement speed for units
	// Get appropriate asset for this unit type
	var assetId = 'unit';
	if (self.type !== 'normal') {
		assetId = 'unit_' + self.type;
	}
	var unitGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Find enemy HQ automatically
	for (var i = 0; i < towers.length; i++) {
		if (towers[i].isHeadquarters && towers[i].playerIndex === 1) {
			self.enemyHQ = towers[i];
			break;
		}
	}
	self.setSelected = function (selected) {
		self.isSelected = selected;
		if (selected && !self.selectionIndicator) {
			// Create selection indicator
			self.selectionIndicator = new Container();
			var indicator = self.selectionIndicator.attachAsset('rangeCircle', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			indicator.width = 50;
			indicator.height = 50;
			indicator.alpha = 0.5;
			indicator.tint = 0x00FF00;
			self.addChild(self.selectionIndicator);
		} else if (!selected && self.selectionIndicator) {
			// Remove selection indicator
			self.removeChild(self.selectionIndicator);
			self.selectionIndicator = null;
		}
	};
	self.setTarget = function (cellX, cellY) {
		self.targetCellX = cellX;
		self.targetCellY = cellY;
		// Stop idle animation immediately
		self.isIdle = false;
		self.idleAnimationActive = false;
		// Stop any ongoing idle animation tweens
		tween.stop(self);
		// Check if target cell contains an enemy tower
		self.targetTower = null;
		for (var i = 0; i < towers.length; i++) {
			var tower = towers[i];
			// Check if this tower is an enemy tower (different playerIndex)
			if (tower.playerIndex !== self.ownerIndex) {
				// Check if tower occupies the target cell
				var towerGridX, towerGridY;
				var towerSize = tower.isHeadquarters ? 4 : 2;
				if (tower.isHeadquarters) {
					towerGridX = Math.round((tower.x - grid.x) / CELL_SIZE) - towerSize / 2;
					towerGridY = Math.round((tower.y - grid.y) / CELL_SIZE) - towerSize / 2 - mapGridOffset;
				} else {
					towerGridX = Math.floor((tower.x - grid.x) / CELL_SIZE);
					towerGridY = Math.floor((tower.y - grid.y) / CELL_SIZE) - mapGridOffset;
				}
				if (cellX >= towerGridX && cellX < towerGridX + towerSize && cellY >= towerGridY && cellY < towerGridY + towerSize) {
					self.targetTower = tower;
					break;
				}
			}
		}
	};
	self.update = function () {
		if (self.health <= 0) {
			self.health = 0;
		}
		// Handle movement to target
		if (self.targetCellX !== null && self.targetCellY !== null) {
			var targetX = grid.x + self.targetCellX * CELL_SIZE + CELL_SIZE / 2;
			var targetY = grid.y + (self.targetCellY + mapGridOffset) * CELL_SIZE + CELL_SIZE / 2;
			// If targeting a tower, adjust target position to tower's actual position
			if (self.targetTower && self.targetTower.parent) {
				targetX = self.targetTower.x;
				targetY = self.targetTower.y;
			}
			var dx = targetX - self.x;
			var dy = targetY - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			// Check if close enough to attack (within 1 cell distance)
			var attackRange = CELL_SIZE;
			if (self.targetTower && distance <= attackRange) {
				if (!self.targetTower.isHeadquarters && self.targetTower.updateActivation) {
					self.targetTower.updateActivation(self.ownerIndex);
					self.health = 0;
					return;
				}
				// Log unit reaching tower
				var isEnemyTower = self.targetTower.playerIndex !== self.ownerIndex;
				console.log("Unit reached tower. Enemy tower:", isEnemyTower, "Tower health:", self.targetTower.health);
				// Attack the tower
				self.targetTower.health -= 1;
				// Destroy unit after attacking
				self.health = 0;
				// Check if tower was destroyed
				if (self.targetTower.health <= 0) {
					// Remove tower from game
					var towerIndex = towers.indexOf(self.targetTower);
					if (towerIndex !== -1) {
						towers.splice(towerIndex, 1);
					}
					game.removeChild(self.targetTower);
					// Clear the cells occupied by the tower
					var towerGridX, towerGridY;
					var towerSize = self.targetTower.isHeadquarters ? 4 : 2;
					if (self.targetTower.isHeadquarters) {
						towerGridX = Math.round((self.targetTower.x - grid.x) / CELL_SIZE) - towerSize / 2;
						towerGridY = Math.round((self.targetTower.y - grid.y) / CELL_SIZE) - towerSize / 2;
					} else {
						towerGridX = Math.floor((self.targetTower.x - grid.x) / CELL_SIZE);
						towerGridY = Math.floor((self.targetTower.y - grid.y) / CELL_SIZE);
					}
					for (var i = 0; i < towerSize; i++) {
						for (var j = 0; j < towerSize; j++) {
							var cell = grid.getCell(towerGridX + i, towerGridY + j);
							if (cell) {
								cell.type = 0;
							}
						}
					}
					// Update pathfinding
					grid.pathFind();
					grid.renderDebug();
				}
				return;
			}
			if (distance > 2) {
				// Not at target yet
				// Move towards target
				var angle = Math.atan2(dy, dx);
				self.x += Math.cos(angle) * self.movementSpeed * CELL_SIZE;
				self.y += Math.sin(angle) * self.movementSpeed * CELL_SIZE;
				// Update current cell position
				self.currentCellX = (self.x - grid.x) / CELL_SIZE - 0.5;
				self.currentCellY = (self.y - grid.y) / CELL_SIZE - 0.5;
				self.cellX = Math.round(self.currentCellX);
				self.cellY = Math.round(self.currentCellY);
			} else {
				// Reached target
				self.targetCellX = null;
				self.targetCellY = null;
				self.targetTower = null;
				// Set as idle at new position
				self.isIdle = true;
				self.idleBaseX = targetX;
				self.idleBaseY = targetY;
				// Start idle animation at new position
				if (unitManager) {
					unitManager.startIdleAnimation(self);
				}
			}
		}
	};
	return self;
});
var UnitManager = Container.expand(function () {
	var self = Container.call(this);
	self.units = [];
	self.spawnInterval = 180; // Spawn units every 3 seconds (60 FPS * 3)
	self.lastSpawnTime = 0;
	self.maxUnits = 100; // Global maximum units limit
	self.spawnUnitsAroundTower = function (tower) {
		// Calculate actual grid coordinates from tower position
		var actualGridX = Math.floor((tower.x - grid.x) / CELL_SIZE);
		var actualGridY = Math.floor((tower.y - grid.y) / CELL_SIZE) - mapGridOffset;
		// For headquarters, adjust to get the top-left corner of the 2x2 area
		if (tower.isHeadquarters) {
			actualGridX -= 1; // Headquarters is centered at 1.5 cells from left edge
			actualGridY -= 1; // Adjust for centering
		}
		// Count existing units globally
		var totalUnits = self.units.length;
		// Don't spawn more if we've reached the global limit
		if (totalUnits >= self.maxUnits) {
			return;
		}
		// Find valid spawn positions around the tower, prioritizing closest empty cells
		var emptySpawnPositions = [];
		var unitOccupiedSpawnPositions = [];
		var towerSize = 2; // Towers occupy a 2x2 logical grid space
		var maxSearchRadius = 2;
		function checkCell(checkX, checkY) {
			var cell = grid.getCell(checkX, checkY);
			// Cell must be valid and of type 0 (empty floor)
			if (!cell || cell.type !== 0) {
				return;
			}
			// Cell must not be occupied by an enemy
			for (var e = 0; e < enemies.length; e++) {
				if (enemies[e].cellX === checkX && enemies[e].cellY === checkY) {
					return; // Occupied by enemy, invalid
				}
			}
			// Check if occupied by a friendly unit
			var isOccupiedByUnit = false;
			for (var u = 0; u < self.units.length; u++) {
				if (self.units[u].cellX === checkX && self.units[u].cellY === checkY) {
					isOccupiedByUnit = true;
					break;
				}
			}
			var pos = {
				x: checkX,
				y: checkY
			};
			if (isOccupiedByUnit) {
				unitOccupiedSpawnPositions.push(pos);
			} else {
				emptySpawnPositions.push(pos);
			}
		}
		// Search in expanding rings for the closest available spot
		for (var r = 1; r <= maxSearchRadius; r++) {
			// Top and bottom rows of the ring
			for (var dx = -r; dx < towerSize + r; dx++) {
				checkCell(actualGridX + dx, actualGridY - r);
				checkCell(actualGridX + dx, actualGridY + towerSize - 1 + r);
			}
			// Left and right columns of the ring (excluding corners)
			for (var dy = -r + 1; dy < towerSize + r - 1; dy++) {
				checkCell(actualGridX - r, actualGridY + dy);
				checkCell(actualGridX + towerSize - 1 + r, actualGridY + dy);
			}
			// If we found completely empty spots, we prioritize them and stop searching wider
			if (emptySpawnPositions.length > 0) {
				break;
			}
		}
		var spawnPositions = emptySpawnPositions;
		// If no empty positions were found, use positions occupied by other units as a fallback
		if (spawnPositions.length === 0) {
			spawnPositions = unitOccupiedSpawnPositions;
		}
		// Spawn a unit at a random valid position from the chosen list
		if (spawnPositions.length > 0) {
			var spawnPos = spawnPositions[Math.floor(Math.random() * spawnPositions.length)];
			var unit = new Unit('normal');
			unit.cellX = spawnPos.x;
			unit.cellY = spawnPos.y;
			unit.currentCellX = spawnPos.x;
			unit.currentCellY = spawnPos.y;
			// Calculate final position
			var finalX = grid.x + spawnPos.x * CELL_SIZE + CELL_SIZE / 2;
			var finalY = grid.y + (spawnPos.y + mapGridOffset) * CELL_SIZE + CELL_SIZE / 2;
			// Start unit at tower's center (prism position)
			unit.x = tower.x;
			unit.y = tower.y;
			unit.sourceTower = tower; // Track which tower spawned this unit
			unit.ownerIndex = tower.playerIndex; // Track owner player index
			enemyLayerTop.addChild(unit);
			self.units.push(unit);
			// Start with unit invisible and small
			unit.alpha = 0;
			unit.scaleX = 0.1;
			unit.scaleY = 0.1;
			// Tint unit based on owner (source tower's playerIndex)
			if (tower.playerIndex === 0) {
				// Player units
				unit.children[0].tint = teamColors[0];
			} else if (tower.playerIndex === 1) {
				// Enemy units
				unit.children[0].tint = teamColors[1];
			} else {
				// Other players - different colors
				var playerColors = [0x0000FF, 0xFFFF00, 0xFF00FF, 0x00FFFF];
				unit.children[0].tint = playerColors[(tower.playerIndex - 2) % playerColors.length];
			}
			// Animate unit emerging from prism center and moving to spawn position
			tween(unit, {
				scaleX: 1,
				scaleY: 1,
				alpha: 1,
				x: finalX,
				y: finalY
			}, {
				duration: 600,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					// Set unit as idle and save base position
					unit.isIdle = true;
					unit.idleBaseX = finalX;
					unit.idleBaseY = finalY;
					// Start idle animation
					self.startIdleAnimation(unit);
				}
			});
		}
	};
	// Method to start idle animation for a unit
	self.startIdleAnimation = function (unit) {
		if (!unit.isIdle || unit.idleAnimationActive) {
			return;
		}
		unit.idleAnimationActive = true;
		// Create a gentle floating animation
		var _animateFloat = function animateFloat() {
			if (!unit.isIdle || !unit.parent) {
				unit.idleAnimationActive = false;
				return;
			}
			// Random offset within a small radius
			var radius = 8; // Small movement radius
			var angle = Math.random() * Math.PI * 2;
			var offsetX = Math.cos(angle) * radius;
			var offsetY = Math.sin(angle) * radius;
			tween(unit, {
				x: unit.idleBaseX + offsetX,
				y: unit.idleBaseY + offsetY
			}, {
				duration: 800 + Math.random() * 400,
				// 0.8-1.2 seconds (faster animation)
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					// Continue animation if still idle
					if (unit.isIdle && unit.parent) {
						_animateFloat();
					} else {
						unit.idleAnimationActive = false;
					}
				}
			});
		};
		_animateFloat();
	};
	self.update = function () {
		// Check if it's time to spawn new units
		if (LK.ticks - self.lastSpawnTime >= self.spawnInterval) {
			self.lastSpawnTime = LK.ticks;
			// Find all towers in generator mode
			var generatorTowerCount = 0;
			for (var i = 0; i < towers.length; i++) {
				var tower = towers[i];
				if (tower.isProducing) {
					generatorTowerCount++;
					self.spawnUnitsAroundTower(tower);
				}
			}
		}
		// Update all units
		for (var i = self.units.length - 1; i >= 0; i--) {
			var unit = self.units[i];
			// Remove dead units
			if (unit.health <= 0) {
				enemyLayerTop.removeChild(unit);
				self.units.splice(i, 1);
				continue;
			}
			// Check if source tower still exists and is in generator mode
			if (!unit.sourceTower || !unit.sourceTower.parent || !unit.sourceTower.isProducing) {
				// Stop idle animation
				unit.isIdle = false;
				// Stop any ongoing tweens
				tween.stop(unit);
				// Fade out and remove unit
				tween(unit, {
					alpha: 0,
					scaleX: 0.1,
					scaleY: 0.1
				}, {
					duration: 300,
					easing: tween.easeIn,
					onFinish: function (u) {
						return function () {
							var idx = self.units.indexOf(u);
							if (idx !== -1) {
								self.units.splice(idx, 1);
							}
							enemyLayerTop.removeChild(u);
						};
					}(unit)
				});
				// Remove from array immediately to prevent multiple tweens
				self.units.splice(i, 1);
			}
		}
	};
	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 towerTypeText = new Text2(self.tower.id.charAt(0).toUpperCase() + self.tower.id.slice(1) + ' 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(self.tower.isHeadquarters ? 'Generator mode' : 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);
	// Hide sell button for headquarters
	if (self.tower.isHeadquarters) {
		sellButton.visible = false;
	}
	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.isHeadquarters) {
			self.tower.changeTowerMode();
			return;
		}
		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) {
					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);
		}
		game.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);
		}
		*/ 
	};
	self.updateButtonText = function (newText) {
		buttonText.setText(newText);
	};
	return self;
});
var Wall = Container.expand(function () {
	var self = Container.call(this);
	var wallGraphics = self.attachAsset('wall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	wallGraphics.alpha = 0.5;
	// Start pulsing animation
	self.startPulseAnimation = function () {
		var _pulseAnimation2 = function _pulseAnimation() {
			// Pulse from 0.5 to 1
			tween(wallGraphics, {
				alpha: 1
			}, {
				duration: 4000,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					// Pulse back from 1 to 0.5
					tween(wallGraphics, {
						alpha: 0.5
					}, {
						duration: 4000,
						easing: tween.easeInOut,
						onFinish: function onFinish() {
							// Continue the loop if wall still exists
							if (self.parent) {
								_pulseAnimation2();
							}
						}
					});
				}
			});
		};
		_pulseAnimation2();
	};
	// Start the animation immediately
	self.startPulseAnimation();
	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 () {
		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;
		// --- Begin new unified wave logic ---
		var waveType = "normal";
		var enemyType = "normal";
		var enemyCount = 10;
		var isBossWave = (i + 1) % 10 === 0;
		// Ensure all types appear in early waves
		if (i === 0) {
			block.tint = 0xAAAAAA;
			waveType = "Normal";
			enemyType = "normal";
			enemyCount = 10;
		} else if (isBossWave) {
			enemyType = 'normal';
			waveType = "Boss Normal";
			block.tint = 0xAAAAAA;
			enemyCount = 1;
		} else {
			block.tint = 0xAAAAAA;
			waveType = "Normal";
			enemyType = "normal";
			enemyCount = 10;
		}
		// --- End new unified wave logic ---
		// Mark boss waves with a special visual indicator
		if (isBossWave && enemyType !== 'swarm') {
			// Add a crown or some indicator to the wave marker for boss waves
			var bossIndicator = marker.attachAsset('towerLevelIndicator', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			bossIndicator.width = 30;
			bossIndicator.height = 30;
			bossIndicator.tint = 0xFFD700; // Gold color
			bossIndicator.y = -block.height / 2 - 15;
			// Change the wave type text to indicate boss
			waveType = "BOSS";
		}
		// 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;
			}
			if (currentWave < totalWaves) {
				waveTimer++;
				if (waveTimer >= nextWaveTime) {
					waveTimer = 0;
					currentWave++;
					waveInProgress = true;
					waveSpawned = false;
					if (currentWave != 1) {
						var waveType = self.getWaveTypeName(currentWave);
						var enemyCount = self.getEnemyCount(currentWave);
						var notification = game.addChild(new Notification("Wave " + currentWave + " (" + waveType + " - " + enemyCount + " enemies) 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 teamColors = [0x00AA00, 0xAA0000]; // Index 0: player color (green), Index 1: enemy color (red)
var isHidingUpgradeMenu = false;
var isSelectingUnits = false;
var selectionStartX = 0;
var selectionStartY = 0;
var selectionCircle = null;
var selectedUnits = [];
var isCommandMode = false; // Track if we're in command mode after selecting units
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 isDebug = false;
var CELL_SIZE = 76;
var pathId = 1;
var maxScore = 0;
var mapGridOffset = 4; // Global offset for Y-coordinate conversion
var enemies = [];
var towers = [];
var bullets = [];
var defenses = [];
var selectedTower = null;
var unitManager = null;
var gold = 80;
var lives = 20;
var score = 0;
var currentWave = 0;
var totalWaves = 50;
var waveTimer = 0;
var waveInProgress = false;
var waveSpawned = false;
var nextWaveTime = 12000 / 2;
var sourceTower = null;
var enemiesToSpawn = 10; // Default number of enemies per wave
// Map cell values: 0 = empty cell, 1 = player base, 2 = enemy base, 3 = empty tower, 9 = wall, 22 = enemy base (rotated)
var MAPS = [
// Level 1: Basic tower defense layout (24x31)
[[9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9],
// Row 0 - Enemy spawn area
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 22, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 5 - Main play area starts
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 6
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 7
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 8
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 9
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 10
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 11
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 12
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 13
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 14
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 15
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 16
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 17
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 18
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 19
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 20
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 21
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 22
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 23
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 24
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 25
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 26
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 27
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 28
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 29 - Main play area ends
[9, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 30
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 31
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 32
[9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9],
// Row 33
[9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9] // Row 34 - Player base area
]];
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 scoreText = new Text2('Score: ' + score, {
	size: 60,
	fill: 0xFF0000,
	weight: 800
});
scoreText.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);
LK.gui.top.addChild(scoreText);
livesText.x = 0;
livesText.y = topMargin;
goldText.x = -spacing;
goldText.y = topMargin;
scoreText.x = spacing;
scoreText.y = topMargin;
function updateUI() {
	goldText.setText('Gold: ' + gold);
	livesText.setText('Lives: ' + lives);
	scoreText.setText('Score: ' + score);
}
function setGold(value) {
	gold = value;
	updateUI();
}
// Create background manager
var backgroundManager = new BackgroundManager();
game.addChild(backgroundManager);
// Add background layers for parallax effect
var background1 = backgroundManager.addBackground('background_1', {
	x: 1024,
	y: 1366,
	scaleX: 1,
	scaleY: 1,
	alpha: 0.8,
	tint: 0xCCCCCC
});
var background2 = backgroundManager.addBackground('background_2', {
	x: 1024,
	y: 1366,
	scaleX: 1,
	scaleY: 1,
	alpha: 1
});
var background3 = backgroundManager.addBackground('background_3', {
	x: 1024,
	y: 1366,
	scaleX: 1,
	scaleY: 1,
	alpha: 1
});
// Create a parallax scrolling effect with the three backgrounds
backgroundManager.createParallaxEffect([background1, background2, background3], 1);
var debugLayer = 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 * mapGridOffset;
grid.pathFind();
grid.renderDebug();
debugLayer.addChild(grid);
game.addChild(debugLayer);
// Create and add unit manager
unitManager = new UnitManager();
game.addChild(unitManager);
// Add headquarters towers for player and enemy bases
function addHeadquarters() {
	// Find player base cells (type 3) and enemy base cells (type 2)
	var playerBaseCells = [];
	var enemyBaseCells = [];
	for (var i = 0; i < grid.cells.length; i++) {
		for (var j = 0; j < grid.cells[i].length; j++) {
			var cell = grid.cells[i][j];
			if (cell.type === 3) {
				// Player base
				playerBaseCells.push(cell);
			} else if (cell.type === 2) {
				// Enemy base
				enemyBaseCells.push(cell);
			}
		}
	}
	// Add player headquarters (center of player base area)
	if (playerBaseCells.length > 0) {
		var playerOrientation = 0;
		for (var i = 0; i < playerBaseCells.length; i++) {
			if (playerBaseCells[i].orientation) {
				playerOrientation = playerBaseCells[i].orientation;
				break;
			}
		}
		var playerHQ = new Tower(true, playerOrientation, 0); // Pass true for headquarters, playerIndex 0 for player
		// Position at center of the 4x3 player base area (anchor at top-left of base area)
		var playerAnchorX = 10; // Top-left of 4x3 player base area
		var playerAnchorY = 31; // Top-left of 4x3 player base area
		// Position the headquarters asset at the center of the 4x3 area
		playerHQ.x = grid.x + (playerAnchorX + 1.5) * CELL_SIZE; // Center horizontally (2 cells from anchor)
		playerHQ.y = grid.y + (playerAnchorY + 2) * CELL_SIZE; // Center vertically (1.5 cells from anchor)
		// Tint the headquarters graphics
		playerHQ.children[0].tint = teamColors[0]; // Player color
		game.addChild(playerHQ);
		towers.push(playerHQ); // Add to towers array so UnitManager can find it
	}
	// Add enemy headquarters (center of enemy base area)
	if (enemyBaseCells.length > 0) {
		var enemyOrientation = 0;
		for (var i = 0; i < enemyBaseCells.length; i++) {
			if (enemyBaseCells[i].orientation) {
				enemyOrientation = enemyBaseCells[i].orientation;
				break;
			}
		}
		var enemyHQ = new Tower(true, enemyOrientation, 1); // Pass true for headquarters, playerIndex 1 for first enemy
		// Position at center of the 4x3 enemy base area (anchor at top-left of base area)
		var enemyAnchorX = 10; // Top-left of 4x3 enemy base area
		var enemyAnchorY = 0; // Top-left of 4x3 enemy base area
		// Position the headquarters asset at the center of the 4x3 area
		enemyHQ.x = grid.x + (enemyAnchorX + 1.5) * CELL_SIZE; // Center horizontally (2 cells from anchor)
		if (enemyOrientation !== 0) {
			// For a rotated HQ, place it at the bottom edge of its base area to make it visible and appear to be "entering" the map.
			enemyHQ.y = grid.y + (enemyAnchorY + 5) * CELL_SIZE;
		} else {
			enemyHQ.y = grid.y + (enemyAnchorY + 2) * CELL_SIZE; // Center vertically (1.5 cells from anchor)
		}
		// Tint the headquarters graphics
		enemyHQ.children[0].tint = teamColors[1]; // Enemy color
		game.addChild(enemyHQ);
		towers.push(enemyHQ); // Add to towers array
	}
}
function addEmptyTowers() {
	// Find empty tower cells (type 4)
	var emptyTowerCells = [];
	for (var i = 0; i < grid.cells.length; i++) {
		for (var j = 0; j < grid.cells[i].length; j++) {
			var cell = grid.cells[i][j];
			if (cell.type === 4) {
				emptyTowerCells.push(cell);
			}
		}
	}
	// Add empty towers to the grid
	for (var i = 0; i < emptyTowerCells.length; i++) {
		var cell = emptyTowerCells[i];
		var emptyTower = new Tower(false, 0, -1); // Not HQ, neutral
		// Position the tower on its cell
		emptyTower.x = grid.x + cell.x * CELL_SIZE + CELL_SIZE / 2;
		emptyTower.y = grid.y + (cell.y + mapGridOffset) * CELL_SIZE + CELL_SIZE / 2;
		// Customize appearance for an empty, 1x1 tower
		var baseGraphics = emptyTower.children[0];
		baseGraphics.width = CELL_SIZE;
		baseGraphics.height = CELL_SIZE;
		baseGraphics.tint = 0xAAAAAA; // Neutral gray color
		// Hide the gun
		var gunContainer = emptyTower.children[emptyTower.children.length - 1];
		gunContainer.visible = false;
		// Level indicators are already hidden due to playerIndex being -1
		// Behaviors are disabled via the isActivated flag in the Tower class update/down methods.
		// Add to game world
		game.addChild(emptyTower);
		towers.push(emptyTower);
		// Mark the cell as an obstacle
		cell.type = 1;
		// Flag this cell to prevent the renderer from drawing a 'wall' asset on top
		cell.isVisuallyEmptyTower = true;
	}
	// If any towers were added, update pathfinding
	if (emptyTowerCells.length > 0) {
		grid.pathFind();
		grid.renderDebug();
	}
}
// Call the function to add headquarters
addHeadquarters();
// Call the function to add empty towers
addEmptyTowers();
var offset = 0;
game.addChild(enemyLayer);
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 = 5;
	cost = 5;
	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(false, undefined, 0); // Pass false for headquarters, undefined orientation, playerIndex 0 for player
		tower.placeOnGrid(gridX, gridY);
		game.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) {
	var upgradeMenuVisible = game.children.some(function (child) {
		return child instanceof UpgradeMenu;
	});
	if (upgradeMenuVisible) {
		return;
	}
	// Check if clicking on a tower or source tower
	var clickedOnTower = false;
	for (var i = 0; i < towers.length; i++) {
		var tower = towers[i];
		var towerLeft = tower.x - CELL_SIZE;
		var towerRight = tower.x + CELL_SIZE;
		var towerTop = tower.y - CELL_SIZE;
		var towerBottom = tower.y + CELL_SIZE;
		if (x >= towerLeft && x <= towerRight && y >= towerTop && y <= towerBottom) {
			clickedOnTower = true;
			break;
		}
	}
	// Check if clicking on source tower
	if (sourceTower) {
		var sourceLeft = sourceTower.x - sourceTower.width / 2;
		var sourceRight = sourceTower.x + sourceTower.width / 2;
		var sourceTop = sourceTower.y - sourceTower.height / 2;
		var sourceBottom = sourceTower.y + sourceTower.height / 2;
		if (x >= sourceLeft && x <= sourceRight && y >= sourceTop && y <= sourceBottom) {
			clickedOnTower = true;
		}
	}
	// Start unit selection if not clicking on a tower and not in command mode
	if (!clickedOnTower && !isDragging && !isCommandMode) {
		// Clean up any existing selection circle first
		if (selectionCircle) {
			game.removeChild(selectionCircle);
			selectionCircle = null;
		}
		isSelectingUnits = true;
		selectionStartX = x;
		selectionStartY = y;
		// Create selection circle
		selectionCircle = new SelectionCircle();
		selectionCircle.setPosition(x, y);
		game.addChild(selectionCircle);
	}
};
game.move = function (x, y, obj) {
	if (isDragging) {
		// Shift the y position upward by 1.5 tiles to show preview above finger
		towerPreview.snapToGrid(x, y - CELL_SIZE * 1.5);
	} else if (isSelectingUnits && selectionCircle) {
		// Check if cursor went out of screen bounds (with some margin for edge cases)
		var screenMargin = 50;
		if (x < -screenMargin || x > 2048 + screenMargin || y < -screenMargin || y > 2732 + screenMargin) {
			// Cursor went out of bounds, cancel selection
			isSelectingUnits = false;
			if (selectionCircle) {
				game.removeChild(selectionCircle);
				selectionCircle = null;
			}
		} else {
			// Update selection circle normally
			selectionCircle.updateCircle(x, y);
		}
	}
};
game.up = function (x, y, obj) {
	// Handle unit selection completion
	if (isSelectingUnits && selectionCircle) {
		isSelectingUnits = false;
		// Clear previous selection
		for (var i = 0; i < selectedUnits.length; i++) {
			selectedUnits[i].setSelected(false);
		}
		selectedUnits = [];
		// Check which units are within the selection circle
		var centerX = selectionCircle.startX;
		var centerY = selectionCircle.startY;
		var radius = selectionCircle.currentRadius;
		if (unitManager && unitManager.units) {
			for (var i = 0; i < unitManager.units.length; i++) {
				var unit = unitManager.units[i];
				// Only select player units (ownerIndex === 0)
				if (unit.ownerIndex === 0) {
					var dx = unit.x - centerX;
					var dy = unit.y - centerY;
					var distance = Math.sqrt(dx * dx + dy * dy);
					if (distance <= radius) {
						unit.setSelected(true);
						selectedUnits.push(unit);
					}
				}
			}
		}
		// Remove selection circle
		game.removeChild(selectionCircle);
		selectionCircle = null;
		// Show feedback if units were selected
		if (selectedUnits.length > 0) {
			var notification = game.addChild(new Notification(selectedUnits.length + " units selected"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 250;
			isCommandMode = true; // Enter command mode
		}
		return;
	}
	// Handle command casting for selected units
	if (isCommandMode && selectedUnits.length > 0) {
		// Convert screen coordinates to grid coordinates
		var gridPosX = x - grid.x;
		var gridPosY = y - grid.y;
		var cellX = Math.floor(gridPosX / CELL_SIZE);
		var cellY = Math.floor(gridPosY / CELL_SIZE) - mapGridOffset;
		// Get the cell at the tapped position
		var targetCell = grid.getCell(cellX, cellY);
		// If tapped outside grid or on a wall, find closest empty cell
		if (!targetCell || targetCell.type === 1 || targetCell.type === 9) {
			// Find closest empty cell
			var closestCell = null;
			var closestDistance = Infinity;
			// Search in expanding rings from the tapped position
			var searchRadius = 1;
			var maxSearchRadius = 10;
			while (!closestCell && searchRadius <= maxSearchRadius) {
				for (var dx = -searchRadius; dx <= searchRadius; dx++) {
					for (var dy = -searchRadius; dy <= searchRadius; dy++) {
						// Only check cells on the perimeter of the search square
						if (Math.abs(dx) === searchRadius || Math.abs(dy) === searchRadius) {
							var checkX = cellX + dx;
							var checkY = cellY + dy;
							var checkCell = grid.getCell(checkX, checkY);
							if (checkCell && checkCell.type === 0) {
								var dist = dx * dx + dy * dy;
								if (dist < closestDistance) {
									closestDistance = dist;
									closestCell = checkCell;
								}
							}
						}
					}
				}
				searchRadius++;
			}
			targetCell = closestCell;
		}
		// Check if target cell contains an enemy tower
		var targetHasTower = false;
		var enemyTower = null;
		for (var i = 0; i < towers.length; i++) {
			var tower = towers[i];
			// Check if this is an enemy tower (playerIndex !== 0 for player units)
			if (tower.playerIndex !== 0) {
				var towerGridX, towerGridY;
				var towerSize = tower.isHeadquarters ? 4 : 2;
				if (tower.isHeadquarters) {
					towerGridX = Math.round((tower.x - grid.x) / CELL_SIZE) - towerSize / 2;
					towerGridY = Math.round((tower.y - grid.y) / CELL_SIZE) - towerSize / 2 - mapGridOffset;
				} else {
					towerGridX = Math.floor((tower.x - grid.x) / CELL_SIZE);
					towerGridY = Math.floor((tower.y - grid.y) / CELL_SIZE) - mapGridOffset;
				}
				// Check if the clicked cell is within the tower's area
				if (cellX >= towerGridX && cellX < towerGridX + towerSize && cellY >= towerGridY && cellY < towerGridY + towerSize) {
					targetHasTower = true;
					enemyTower = tower;
					break;
				}
			}
		}
		// If we found a valid target cell or an enemy tower
		if (targetCell && targetCell.type === 0 || targetHasTower) {
			// Send all selected units to the target
			for (var i = 0; i < selectedUnits.length; i++) {
				var unit = selectedUnits[i];
				if (targetHasTower) {
					// Use the tower's grid position for targeting
					unit.setTarget(cellX, cellY);
				} else {
					unit.setTarget(targetCell.x, targetCell.y);
				}
			}
			// Show feedback
			var message;
			if (targetHasTower) {
				if (enemyTower.playerIndex === -1) {
					message = "Units capturing tower!";
				} else {
					message = "Units attacking enemy tower!";
				}
			} else {
				message = "Units moving to target";
			}
			var notification = game.addChild(new Notification(message));
			notification.x = 2048 / 2;
			notification.y = grid.height - 250;
			// Clear selection and exit command mode
			for (var i = 0; i < selectedUnits.length; i++) {
				selectedUnits[i].setSelected(false);
			}
			selectedUnits = [];
			isCommandMode = false;
		} else {
			// No valid target found
			var notification = game.addChild(new Notification("Invalid target location"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 250;
		}
		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;
		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);
var nextWaveButtonContainer = new Container();
var nextWaveButton = new NextWaveButton();
nextWaveButton.x = 2048 - 200;
nextWaveButton.y = 2732 - 100 + 20;
nextWaveButtonContainer.addChild(nextWaveButton);
game.addChild(nextWaveButtonContainer);
sourceTower = null;
enemiesToSpawn = 10;
game.update = function () {
	// Update unit manager
	if (unitManager) {
		unitManager.update();
	}
	if (waveInProgress) {
		if (!waveSpawned) {
			waveSpawned = true;
			// Get wave type and enemy count from the wave indicator
			var waveType = waveIndicator.getWaveType(currentWave);
			var enemyCount = waveIndicator.getEnemyCount(currentWave);
			// Check if this is a boss wave
			var isBossWave = currentWave % 10 === 0 && currentWave > 0;
			if (isBossWave) {
				enemyCount = 1;
				var notification = game.addChild(new Notification("⚠️ BOSS WAVE! ⚠️"));
				notification.x = 2048 / 2;
				notification.y = grid.height - 200;
			}
			// Spawn the appropriate number of enemies
			for (var i = 0; i < enemyCount; i++) {
				var enemy = new Enemy(waveType);
				// Add enemy to the appropriate layer based on type
				if (enemy.isFlying) {
					// Add flying enemy to the top layer
					enemyLayerTop.addChild(enemy);
					// If it's a flying enemy, add its shadow to the middle layer
					if (enemy.shadow) {
						enemyLayerMiddle.addChild(enemy.shadow);
					}
				} else {
					// Add normal/ground enemies to the 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 = mapGridOffset; // Position at entry area boundary
				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;
		}
	}
	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;
			}
			// Boss enemies give more gold and score
			var goldEarned = enemy.isBoss ? Math.floor(50 + (enemy.waveNumber - 1) * 5) : Math.floor(1 + (enemy.waveNumber - 1) * 0.5);
			var goldIndicator = new GoldIndicator(goldEarned, enemy.x, enemy.y);
			game.addChild(goldIndicator);
			setGold(gold + goldEarned);
			// Give more score for defeating a boss
			var scoreValue = enemy.isBoss ? 100 : 5;
			score += scoreValue;
			// 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 - 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();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -131,24 +131,28 @@
 					tint: bg1.config.tint || 0xFFFFFF
 				});
 				var moveDistance = bg1.graphics.width;
 				var duration = 40000 / speed;
-				var _animate = function animate(bg) {
+				var _animate = function animate(bg, initialX) {
+					// Always animate from current position to current - moveDistance
 					self.animateBackground(bg, {
 						x: bg.graphics.x - moveDistance
 					}, {
 						duration: duration,
 						easing: tween.linear,
 						onFinish: function onFinish() {
 							if (self.animationActive) {
-								bg.graphics.x += moveDistance * 2;
-								_animate(bg);
+								// If the background has fully moved out of view to the left, reset to the right
+								if (bg.graphics.x <= -moveDistance / 2) {
+									bg.graphics.x = bg.graphics.x + moveDistance * 2;
+								}
+								_animate(bg, initialX);
 							}
 						}
 					});
 				};
-				_animate(bg1);
-				_animate(bg2);
+				_animate(bg1, bg1.graphics.x);
+				_animate(bg2, bg2.graphics.x);
 			})(i);
 		}
 	};
 	return self;