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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function (startX, startY, targetEnemy, damage, speed) {
	var self = Container.call(this);
	self.targetEnemy = targetEnemy;
	self.damage = damage || 10;
	self.speed = speed || 5;
	self.x = startX;
	self.y = startY;
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bulletGraphics.scaleX = 0.5;
	bulletGraphics.scaleY = 0.5;
	// --- NUEVO: Calcular radio de colisión basado en tamaño visual ---
	var bulletRadius = bulletGraphics.width * bulletGraphics.scaleX / 2;
	// Get actual enemy visual size (enemies are scaled to 50%)
	var enemyGraphics = self.targetEnemy.children[0]; // First child should be the enemy graphics
	var enemyRadius = enemyGraphics ? enemyGraphics.width * enemyGraphics.scaleX / 2 : 35;
	// Dirección fija al momento de disparar
	if (self.targetEnemy) {
		var dx = self.targetEnemy.x - self.x;
		var dy = self.targetEnemy.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		self.vx = dx / distance * self.speed;
		self.vy = dy / distance * self.speed;
	} else {
		self.vx = 0;
		self.vy = 0;
	}
	self.update = function () {
		if (!self.targetEnemy || !self.targetEnemy.parent) {
			self.destroy();
			return;
		}
		// Convert enemy position from its scaled layer to game coordinates
		var enemyGameX = self.targetEnemy.x * gameScale + enemyLayer.x;
		var enemyGameY = self.targetEnemy.y * gameScale + enemyLayer.y;
		var dx = enemyGameX - self.x;
		var dy = enemyGameY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		// --- MODIFICADO: comparación de colisión considerando radios ---
		if (distance < bulletRadius + enemyRadius) {
			self.targetEnemy.health -= self.damage;
			if (self.targetEnemy.health <= 0) {
				self.targetEnemy.health = 0;
			} else {
				self.targetEnemy.healthBar.width = self.targetEnemy.health / self.targetEnemy.maxHealth * 70;
			}
			self.destroy();
		} else {
			// Actualizar velocidad para rastrear objetivo
			self.vx = dx / distance * self.speed;
			self.vy = dy / distance * self.speed;
			self.x += self.vx;
			self.y += self.vy;
		}
	};
	return self;
});
var DebugCell = Container.expand(function () {
	var self = Container.call(this);
	var cellGraphics = self.attachAsset('cell', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	cellGraphics.tint = Math.random() * 0xffffff;
	var debugArrows = [];
	var numberLabel = new Text2('0', {
		size: 30,
		fill: 0xFFFFFF,
		weight: 800
	});
	numberLabel.anchor.set(.5, .5);
	self.addChild(numberLabel);
	// Add cell number label (small red text)
	var cellNumberLabel = new Text2('1', {
		size: 20,
		fill: 0xFF0000,
		weight: 800
	});
	cellNumberLabel.anchor.set(0.5, 0.5);
	self.addChild(cellNumberLabel);
	self.setCellNumber = function (number) {
		cellNumberLabel.setText(number.toString());
	};
	self.update = function () {};
	self.down = function () {
		return;
		if (self.cell.type == 0 || self.cell.type == 1) {
			self.cell.type = self.cell.type == 1 ? 0 : 1;
			if (grid.pathFind()) {
				self.cell.type = self.cell.type == 1 ? 0 : 1;
				grid.pathFind();
				var notification = game.addChild(new Notification("Path is blocked!"));
				notification.x = 2048 / 2;
				notification.y = grid.height - 50;
			}
			grid.renderDebug();
		}
	};
	self.removeArrows = function () {
		while (debugArrows.length) {
			self.removeChild(debugArrows.pop());
		}
	};
	self.render = function (data) {
		switch (data.type) {
			case 0:
			case 2:
				{
					if (data.pathId != pathId) {
						self.removeArrows();
						numberLabel.setText("-");
						cellGraphics.tint = 0x880000;
						return;
					}
					numberLabel.visible = true;
					var tint = Math.floor(data.score / maxScore * 0x88);
					var towerInRangeHighlight = false;
					if (selectedTower && data.towersInRange && data.towersInRange.indexOf(selectedTower) !== -1) {
						towerInRangeHighlight = true;
						cellGraphics.tint = 0x0088ff;
					} else {
						cellGraphics.tint = 0x88 - tint << 8 | tint;
					}
					while (debugArrows.length > data.targets.length) {
						self.removeChild(debugArrows.pop());
					}
					for (var a = 0; a < data.targets.length; a++) {
						var destination = data.targets[a];
						var ox = destination.x - data.x;
						var oy = destination.y - data.y;
						var angle = Math.atan2(oy, ox);
						if (!debugArrows[a]) {
							debugArrows[a] = LK.getAsset('arrow', {
								anchorX: -.5,
								anchorY: 0.5
							});
							debugArrows[a].alpha = .5;
							self.addChildAt(debugArrows[a], 1);
						}
						debugArrows[a].rotation = angle;
					}
					break;
				}
			case 1:
				{
					self.removeArrows();
					cellGraphics.tint = 0xaaaaaa;
					numberLabel.visible = false;
					break;
				}
			case 3:
				{
					self.removeArrows();
					cellGraphics.tint = 0x008800;
					numberLabel.visible = false;
					break;
				}
		}
		numberLabel.setText(Math.floor(data.score / 1000) / 10);
	};
});
// Base enemy class for common functionality
var Enemy = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || 'normal';
	self.speed = .01;
	self.cellX = 0;
	self.cellY = 0;
	self.currentCellX = 0;
	self.currentCellY = 0;
	self.currentTarget = undefined;
	self.maxHealth = 100;
	self.health = self.maxHealth;
	self.bulletsTargetingThis = [];
	self.waveNumber = currentWave;
	self.isFlying = false;
	self.isImmune = false;
	self.isBoss = false;
	switch (self.type) {
		case 'fast':
			self.speed *= 2;
			self.maxHealth = 100;
			break;
		case 'immune':
			self.isImmune = true;
			self.maxHealth = 80;
			break;
		case 'flying':
			self.isFlying = true;
			self.maxHealth = 80;
			break;
		case 'swarm':
			self.maxHealth = 50;
			break;
		case 'normal':
		default:
			break;
	}
	if (currentWave % 10 === 0 && currentWave > 0 && type !== 'swarm') {
		self.isBoss = true;
		self.maxHealth *= 20;
		self.speed = self.speed * 0.7;
	}
	self.health = self.maxHealth;
	var assetId = 'enemy';
	if (self.type !== 'normal') {
		assetId = 'enemy_' + self.type;
	}
	var enemyGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	enemyGraphics.scaleX = 0.5;
	enemyGraphics.scaleY = 0.5;
	if (self.isBoss) {
		enemyGraphics.scaleX = 0.9;
		enemyGraphics.scaleY = 0.9;
	}
	// --- HITBOX ---
	// Calcula tamaño real visible con el escalado
	var realWidth = enemyGraphics.width * enemyGraphics.scaleX;
	var realHeight = enemyGraphics.height * enemyGraphics.scaleY;
	// Define la hitbox centrada con tamaño escalado
	self.hitbox = {
		x: self.x - realWidth / 2,
		y: self.y - realHeight / 2,
		width: realWidth,
		height: realHeight
	};
	// ---------------
	if (self.isFlying) {
		self.shadow = new Container();
		var shadowGraphics = self.shadow.attachAsset(assetId || 'enemy', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		shadowGraphics.tint = 0x000000;
		shadowGraphics.alpha = 0.4;
		shadowGraphics.scaleX = 0.5;
		shadowGraphics.scaleY = 0.5;
		if (self.isBoss) {
			shadowGraphics.scaleX = 0.9;
			shadowGraphics.scaleY = 0.9;
		}
		self.shadow.x = 20;
		self.shadow.y = 20;
		shadowGraphics.rotation = enemyGraphics.rotation;
	}
	var healthBarOutline = self.attachAsset('healthBarOutline', {
		anchorX: 0,
		anchorY: 0.5
	});
	var healthBarBG = self.attachAsset('healthBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	var healthBar = self.attachAsset('healthBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	healthBarBG.y = healthBarOutline.y = healthBar.y = -enemyGraphics.height * 0.5 / 2 - 5;
	healthBarOutline.x = -healthBarOutline.width / 2 + 15;
	healthBarBG.x = healthBar.x = -healthBar.width / 2 + 15;
	healthBarOutline.scaleX = healthBarOutline.scaleY = 0.5;
	healthBarBG.scaleX = healthBarBG.scaleY = 0.5;
	healthBar.scaleX = healthBar.scaleY = 0.5;
	healthBar.tint = 0x00ff00;
	healthBarBG.tint = 0xff0000;
	self.healthBar = healthBar;
	self.update = function () {
		// Update hitbox to use the actual scaled visual position
		// The enemy visual is scaled by 50%, so adjust hitbox accordingly
		var visualWidth = enemyGraphics.width * enemyGraphics.scaleX;
		var visualHeight = enemyGraphics.height * enemyGraphics.scaleY;
		self.hitbox = {
			x: self.x - visualWidth / 2,
			y: self.y - visualHeight / 2,
			width: visualWidth,
			height: visualHeight
		};
		if (self.health <= 0) {
			self.health = 0;
			self.healthBar.width = 0;
		}
		if (self.isImmune) {
			self.slowed = false;
			self.slowEffect = false;
			self.poisoned = false;
			self.poisonEffect = false;
			if (self.originalSpeed !== undefined) {
				self.speed = self.originalSpeed;
			}
		} else {
			if (self.slowed) {
				if (!self.slowEffect) {
					self.slowEffect = true;
				}
				self.slowDuration--;
				if (self.slowDuration <= 0) {
					self.speed = self.originalSpeed;
					self.slowed = false;
					self.slowEffect = false;
					if (!self.poisoned) {
						enemyGraphics.tint = 0xFFFFFF;
					}
				}
			}
			if (self.poisoned) {
				if (!self.poisonEffect) {
					self.poisonEffect = true;
				}
				if (LK.ticks % 30 === 0) {
					self.health -= self.poisonDamage;
					if (self.health <= 0) {
						self.health = 0;
					}
					self.healthBar.width = self.health / self.maxHealth * 70;
				}
				self.poisonDuration--;
				if (self.poisonDuration <= 0) {
					self.poisoned = false;
					self.poisonEffect = false;
					if (!self.slowed) {
						enemyGraphics.tint = 0xFFFFFF;
					}
				}
			}
		}
		if (self.isImmune) {
			enemyGraphics.tint = 0xFFFFFF;
		} else if (self.poisoned && self.slowed) {
			enemyGraphics.tint = 0x4C7FD4;
		} else if (self.poisoned) {
			enemyGraphics.tint = 0x00FFAA;
		} else if (self.slowed) {
			enemyGraphics.tint = 0x9900FF;
		} else {
			enemyGraphics.tint = 0xFFFFFF;
		}
		if (self.currentTarget) {
			var ox = self.currentTarget.x - self.currentCellX;
			var oy = self.currentTarget.y - self.currentCellY;
			if (ox !== 0 || oy !== 0) {
				var angle = Math.atan2(oy, ox);
				if (enemyGraphics.targetRotation === undefined) {
					enemyGraphics.targetRotation = angle;
					enemyGraphics.rotation = angle;
				} else {
					if (Math.abs(angle - enemyGraphics.targetRotation) > 0.05) {
						tween.stop(enemyGraphics, {
							rotation: true
						});
						var currentRotation = enemyGraphics.rotation;
						var angleDiff = angle - currentRotation;
						while (angleDiff > Math.PI) {
							angleDiff -= Math.PI * 2;
						}
						while (angleDiff < -Math.PI) {
							angleDiff += Math.PI * 2;
						}
						enemyGraphics.targetRotation = angle;
						tween(enemyGraphics, {
							rotation: currentRotation + angleDiff
						}, {
							duration: 250,
							easing: tween.easeOut
						});
					}
				}
			}
		}
		healthBarOutline.y = healthBarBG.y = healthBar.y = -enemyGraphics.height * 0.5 / 2 - 5;
	};
	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.towerCells = []; // Separate tracking for tower placement
	self.spawns = [];
	self.goals = [];
	for (var i = 0; i < gridWidth; i++) {
		self.cells[i] = [];
		self.towerCells[i] = [];
		for (var j = 0; j < gridHeight; j++) {
			self.cells[i][j] = {
				score: 0,
				pathId: 0,
				towersInRange: []
			};
			self.towerCells[i][j] = false; // Track tower placement separately
		}
	}
	/*
				Cell Types
				0: Transparent floor
				1: Wall
				2: Spawn
				3: Goal
	*/
	for (var i = 0; i < gridWidth; i++) {
		for (var j = 0; j < gridHeight; j++) {
			var cell = self.cells[i][j];
			var cellType = i === 0 || i === gridWidth - 1 || j <= 4 || j >= gridHeight - 4 ? 1 : 0;
			if (i > 5 - 3 && i <= 5 + 3) {
				if (j === 0) {
					cellType = 2;
					self.spawns.push(cell);
				} else if (j <= 4) {
					cellType = 0;
				} else if (j === gridHeight - 1) {
					cellType = 3;
					self.goals.push(cell);
				} else if (j >= gridHeight - 4) {
					cellType = 0;
				}
			}
			cell.type = cellType;
			cell.x = i;
			cell.y = j;
			cell.upLeft = self.cells[i - 1] && self.cells[i - 1][j - 1];
			cell.up = self.cells[i - 1] && self.cells[i - 1][j];
			cell.upRight = self.cells[i - 1] && self.cells[i - 1][j + 1];
			cell.left = self.cells[i][j - 1];
			cell.right = self.cells[i][j + 1];
			cell.downLeft = self.cells[i + 1] && self.cells[i + 1][j - 1];
			cell.down = self.cells[i + 1] && self.cells[i + 1][j];
			cell.downRight = self.cells[i + 1] && self.cells[i + 1][j + 1];
			cell.neighbors = [cell.upLeft, cell.up, cell.upRight, cell.right, cell.downRight, cell.down, cell.downLeft, cell.left];
			cell.targets = [];
			if (j > 3 && j <= gridHeight - 4) {
				var debugCell = new DebugCell();
				self.addChild(debugCell);
				debugCell.cell = cell;
				debugCell.x = i * CELL_SIZE;
				debugCell.y = j * CELL_SIZE;
				cell.debugCell = debugCell;
				// Calculate cell number (1-based indexing)
				// Only count cells in the playable area (j > 3 && j <= gridHeight - 4)
				var cellNumber = (j - 4) * gridWidth + i + 1;
				debugCell.setCellNumber(cellNumber);
				// Place obstacles on specific cells
				var obstacleCells = [14, 17, 18, 19, 20, 21, 22, 23, 26, 35, 38, 39, 40, 41, 42, 43, 44, 45, 47, 50, 59, 62, 64, 65, 66, 67, 68, 69, 70, 71, 74, 83, 86, 87, 88, 89, 90, 91, 92, 93, 95, 98, 107, 110, 112, 113, 114, 115, 116, 117, 118, 119, 122, 12, 130, 131, 16];
				if (obstacleCells.indexOf(cellNumber) !== -1) {
					// Create obstacle
					var obstacle = new Container();
					var obstacleGraphics = obstacle.attachAsset('obstacle', {
						anchorX: 0.5,
						anchorY: 0.5
					});
					obstacle.x = i * CELL_SIZE;
					obstacle.y = j * CELL_SIZE;
					self.addChild(obstacle);
					// Mark cell as wall so enemies cannot traverse
					cell.type = 1;
				}
				// Force specific cells to be path regardless of other conditions
				var pathCells = [3, 10, 15, 27, 136, 137, 138, 139, 140];
				if (pathCells.indexOf(cellNumber) !== -1) {
					cell.type = 0; // Force as path
				}
				// Place walls on specific cells
				var wallCells = [1, 2, 11, 12, 13, 24, 25, 36, 37, 48, 49, 60, 61, 72, 73, 84, 85, 96, 97, 108, 109, 120, 121, 132, 133, 134, 135, 142, 143, 144];
				if (wallCells.indexOf(cellNumber) !== -1) {
					// Create wall
					var wall = new Container();
					var wallGraphics = wall.attachAsset('wall', {
						anchorX: 0.5,
						anchorY: 0.5
					});
					wall.x = i * CELL_SIZE;
					wall.y = j * CELL_SIZE;
					self.addChild(wall);
					// Mark cell as wall so enemies cannot traverse and towers cannot be placed
					cell.type = 1;
				}
			}
		}
	}
	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 < 4) {
				continue;
			}
			// Skip flying enemies from path check as they can fly over obstacles
			if (enemy.isFlying) {
				continue;
			}
			var target = self.getCell(enemy.cellX, enemy.cellY);
			if (enemy.currentTarget) {
				if (enemy.currentTarget.pathId != pathId) {
					if (!target || target.pathId != pathId) {
						console.warn("Enemy blocked 1 ");
						return true;
					}
				}
			} else if (!target || target.pathId != pathId) {
				console.warn("Enemy blocked 2");
				return true;
			}
		}
		console.log("Speed", new Date().getTime() - before);
	};
	self.renderDebug = function () {
		for (var i = 0; i < gridWidth; i++) {
			for (var j = 0; j < gridHeight; j++) {
				var debugCell = self.cells[i][j].debugCell;
				if (debugCell) {
					debugCell.render(self.cells[i][j]);
				}
			}
		}
	};
	self.updateEnemy = function (enemy) {
		var cell = grid.getCell(enemy.cellX, enemy.cellY);
		if (cell.type == 3) {
			return true;
		}
		if (enemy.isFlying && enemy.shadow) {
			enemy.shadow.x = enemy.x + 20; // Match enemy x-position + offset
			enemy.shadow.y = enemy.y + 20; // Match enemy y-position + offset
			// Match shadow rotation with enemy rotation
			if (enemy.children[0] && enemy.shadow.children[0]) {
				enemy.shadow.children[0].rotation = enemy.children[0].rotation;
			}
		}
		// Check if the enemy has reached the entry area (y position is at least 5)
		var hasReachedEntryArea = enemy.currentCellY >= 4;
		// If enemy hasn't reached the entry area yet, just move down vertically
		if (!hasReachedEntryArea) {
			// Move directly downward
			enemy.currentCellY += enemy.speed;
			// 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 / gameScale + enemy.currentCellX * CELL_SIZE;
			enemy.y = grid.y / gameScale + enemy.currentCellY * CELL_SIZE;
			// If enemy has now reached the entry area, update cell coordinates
			if (enemy.currentCellY >= 4) {
				enemy.cellX = Math.round(enemy.currentCellX);
				enemy.cellY = Math.round(enemy.currentCellY);
			}
			return false;
		}
		// After reaching entry area, handle flying enemies differently
		if (enemy.isFlying) {
			// Flying enemies head straight to the closest goal
			if (!enemy.flyingTarget) {
				// Set flying target to the closest goal
				enemy.flyingTarget = self.goals[0];
				// Find closest goal if there are multiple
				if (self.goals.length > 1) {
					var closestDist = Infinity;
					for (var i = 0; i < self.goals.length; i++) {
						var goal = self.goals[i];
						var dx = goal.x - enemy.cellX;
						var dy = goal.y - enemy.cellY;
						var dist = dx * dx + dy * dy;
						if (dist < closestDist) {
							closestDist = dist;
							enemy.flyingTarget = goal;
						}
					}
				}
			}
			// Move directly toward the goal
			var ox = enemy.flyingTarget.x - enemy.currentCellX;
			var oy = enemy.flyingTarget.y - enemy.currentCellY;
			var dist = Math.sqrt(ox * ox + oy * oy);
			if (dist < enemy.speed) {
				// Reached the goal
				return true;
			}
			var angle = Math.atan2(oy, ox);
			// Rotate enemy graphic to match movement direction
			if (enemy.children[0] && enemy.children[0].targetRotation === undefined) {
				enemy.children[0].targetRotation = angle;
				enemy.children[0].rotation = angle;
			} else if (enemy.children[0]) {
				if (Math.abs(angle - enemy.children[0].targetRotation) > 0.05) {
					tween.stop(enemy.children[0], {
						rotation: true
					});
					// Calculate the shortest angle to rotate
					var currentRotation = enemy.children[0].rotation;
					var angleDiff = angle - currentRotation;
					// Normalize angle difference to -PI to PI range for shortest path
					while (angleDiff > Math.PI) {
						angleDiff -= Math.PI * 2;
					}
					while (angleDiff < -Math.PI) {
						angleDiff += Math.PI * 2;
					}
					// Set target rotation and animate to it
					enemy.children[0].targetRotation = angle;
					tween(enemy.children[0], {
						rotation: currentRotation + angleDiff
					}, {
						duration: 250,
						easing: tween.easeOut
					});
				}
			}
			// Update the cell position to track where the flying enemy is
			enemy.cellX = Math.round(enemy.currentCellX);
			enemy.cellY = Math.round(enemy.currentCellY);
			enemy.currentCellX += Math.cos(angle) * enemy.speed;
			enemy.currentCellY += Math.sin(angle) * enemy.speed;
			enemy.x = grid.x / gameScale + enemy.currentCellX * CELL_SIZE;
			enemy.y = grid.y / gameScale + 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 / gameScale + enemy.currentCellX * CELL_SIZE;
		enemy.y = grid.y / gameScale + enemy.currentCellY * CELL_SIZE;
	};
});
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 Tower = Container.expand(function () {
	var self = Container.call(this);
	self.level = 1;
	self.maxLevel = 6;
	self.gridX = 0;
	self.gridY = 0;
	// Progress tracking for gradual upgrades
	self.upgradeProgress = 0; // Current progress towards next level
	self.upgradeRequiredClicks = [0, 50, 100, 150, 200, 250]; // Clicks needed for each level (index 0 unused)
	// Standardized method to get the current range of the tower with gradual progression
	self.getRange = function () {
		var baseRange = (2 + (self.level - 1) * 0.5) * CELL_SIZE;
		// If not at max level, add gradual range increase based on progress
		if (self.level < self.maxLevel) {
			var nextLevelRange = (2 + self.level * 0.5) * CELL_SIZE;
			var rangeIncrease = (nextLevelRange - baseRange) * (self.upgradeProgress / self.upgradeRequiredClicks[self.level]);
			return baseRange + rangeIncrease;
		}
		return baseRange;
	};
	self.cellsInRange = [];
	self.fireRate = 60;
	self.bulletSpeed = 5;
	self.damage = 10;
	self.lastFired = 0;
	self.targetEnemy = null;
	var baseGraphics = self.attachAsset('tower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	baseGraphics.x = -90;
	baseGraphics.y = 150;
	baseGraphics.tint = 0xAAAAAA;
	// Reduce tower base size by 50%
	baseGraphics.scaleX = 0.5;
	baseGraphics.scaleY = 0.5;
	var levelIndicators = [];
	var maxDots = self.maxLevel;
	var dotSpacing = baseGraphics.width / (maxDots + 1);
	var dotSize = CELL_SIZE / 12; // Reduce dot size by 50%
	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 = -130 + dotSpacing * (i + 1);
		dot.y = 125 + CELL_SIZE * 0.7;
		self.addChild(dot);
		levelIndicators.push(dot);
	}
	var gunContainer = new Container();
	self.addChild(gunContainer);
	gunContainer.x = -90;
	gunContainer.y = 150;
	var gunGraphics = gunContainer.attachAsset('defense', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Reduce gun size by 50%
	gunGraphics.scaleX = 0.5;
	gunGraphics.scaleY = 0.5;
	self.updateLevelIndicators = function () {
		for (var i = 0; i < maxDots; i++) {
			var dot = levelIndicators[i];
			var towerLevelIndicator = dot.children[1];
			if (i < self.level) {
				towerLevelIndicator.tint = 0xFFFFFF;
			} else {
				towerLevelIndicator.tint = 0xAAAAAA;
			}
		}
	};
	self.updateLevelIndicators();
	// Initialize gradual upgrade properties
	self.applyGradualUpgrades();
	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 - 200;
		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))
			var baseUpgradeCost = 5; // Base tower cost
			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 upgrades
				if (self.level === self.maxLevel) {
					// Extra powerful last upgrade (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 closestDistance = Infinity;
		// Calculamos la posición real del cañón
		var gunWorldX = self.x + -180 * 0.5;
		var gunWorldY = self.y + 300 * 0.5;
		// Debug circle removed - using persistent range display instead
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			// Calcula la distancia desde el cañón, no desde el centro lógico
			var dx = enemy.x - gunWorldX;
			var dy = enemy.y - gunWorldY;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance <= self.getRange()) {
				if (distance < closestDistance) {
					closestDistance = distance;
					closestEnemy = enemy;
				}
			}
		}
		self.targetEnemy = closestEnemy;
		return closestEnemy;
	};
	self.update = function () {
		self.findTarget();
		if (self.targetEnemy) {
			// Calculate the angle from the gun position to the target enemy
			// Gun container is at (-95, 150) relative to tower center, scaled by 50%
			var gunWorldX = self.x + -95 * 0.5;
			var gunWorldY = self.y + 300 * 0.5;
			var dx = self.targetEnemy.x - gunWorldX;
			var dy = self.targetEnemy.y - gunWorldY;
			var distance = Math.sqrt(dx * dx + dy * dy);
			var angle = Math.atan2(dy, dx);
			gunContainer.rotation = angle;
			// Fire automatically when target is in range and fire rate allows, but only if red button is not pressed
			if (LK.ticks - self.lastFired >= self.fireRate && !redButton.isPressed) {
				self.fire();
				self.lastFired = LK.ticks;
			}
		}
	};
	self.down = function (x, y, obj) {
		// Hide range from previously selected tower
		if (rangeDisplayTower && rangeDisplayTower !== self) {
			rangeDisplayTower.hideRangeIndicator();
		}
		// Show range for this tower
		self.showRange();
		rangeDisplayTower = self;
		// Track pressed tower and start timer for sell functionality
		pressedTower = self;
		pressStartTime = LK.ticks;
		// Clear any existing timer
		if (pressTimer) {
			LK.clearTimeout(pressTimer);
		}
		// Set timer for 5 seconds (300 ticks at 60fps)
		pressTimer = LK.setTimeout(function () {
			if (pressedTower === self) {
				// Sell the tower
				var sellValue = self.getTotalValue();
				setGold(gold + sellValue);
				// Show sell notification
				var notification = game.addChild(new Notification("Tower sold for " + sellValue + " gold!"));
				notification.x = 2048 / 2;
				notification.y = grid.height - 50;
				// Remove tower from grid tracking
				if (grid.towerCells[self.gridX]) {
					grid.towerCells[self.gridX][self.gridY] = false;
				}
				// Hide range indicator
				self.hideRangeIndicator();
				if (rangeDisplayTower === self) {
					rangeDisplayTower = null;
				}
				// Remove tower from arrays and destroy
				var towerIndex = towers.indexOf(self);
				if (towerIndex !== -1) {
					towers.splice(towerIndex, 1);
				}
				self.destroy();
				pressedTower = null;
			}
		}, 5000);
		// Gradual upgrade on click - each click costs 1 gold
		if (gold >= 1 && self.level < self.maxLevel) {
			setGold(gold - 1);
			self.upgradeProgress++;
			// Check if we've reached the required clicks for next level
			if (self.upgradeProgress >= self.upgradeRequiredClicks[self.level]) {
				self.level++;
				self.upgradeProgress = 0; // Reset progress for next level
				// Animate level indicator when reaching a new level
				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
							});
						}
					});
				}
			}
			// Apply gradual upgrades based on current level and progress
			self.applyGradualUpgrades();
			self.refreshCellsInRange();
			self.updateLevelIndicators();
			// Update range display after upgrade
			self.showRange();
		} else if (gold < 1) {
			var notification = game.addChild(new Notification("Not enough gold to upgrade!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 50;
		} else if (self.level >= self.maxLevel) {
			var notification = game.addChild(new Notification("Tower is already at max level!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 50;
		}
	};
	self.up = function (x, y, obj) {
		// Clear the press timer if this tower was being pressed
		if (pressedTower === self) {
			pressedTower = null;
			if (pressTimer) {
				LK.clearTimeout(pressTimer);
				pressTimer = null;
			}
		}
	};
	self.showRange = function () {
		// Remove existing range indicator first
		self.hideRangeIndicator();
		// Create range indicator
		var rangeIndicator = new Container();
		var rangeGraphics = rangeIndicator.attachAsset('rangeCircle', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		rangeGraphics.width = rangeGraphics.height = self.getRange() * 2;
		rangeGraphics.alpha = 0.3;
		rangeGraphics.tint = 0xffffff; // White color for range (original color)
		rangeIndicator.isTowerRange = true;
		// Position at tower center with offset to align with visual elements
		rangeIndicator.x = -88; // Offset left to center on visual tower
		rangeIndicator.y = 155; // Offset down to center on visual tower
		self.addChild(rangeIndicator);
	};
	self.hideRangeIndicator = function () {
		for (var i = self.children.length - 1; i >= 0; i--) {
			if (self.children[i].isTowerRange) {
				self.removeChild(self.children[i]);
			}
		}
	};
	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) {
				// Calculate bullet spawn position relative to gun container position
				// gunContainer is positioned at (-95, 150) relative to tower center
				// Apply the same scaling as the tower layer
				// Define el punto de la punta del cañón localmente en gunContainer (por ejemplo, en el eje X positivo)
				// Obtener la punta del cañón teniendo en cuenta el anchor
				// Calcula la posición global de la punta del cañón manualmente
				var offsetX = 30; // mueve hacia la punta (horizontal)
				var offsetY = -5; // sube o baja (vertical)
				// Aplica rotación del cañón a ese offset
				var cos = Math.cos(gunContainer.rotation);
				var sin = Math.sin(gunContainer.rotation);
				var rotatedX = offsetX * cos - offsetY * sin;
				var rotatedY = offsetX * sin + offsetY * cos;
				// Posición global final considerando jerarquía y escala de juego
				var bulletX = (self.x + gunContainer.x + rotatedX) * gameScale;
				var bulletY = (self.y + gunContainer.y + rotatedY) * gameScale;
				// Crear la bala en esa posición
				var bullet = new Bullet(bulletX, bulletY, self.targetEnemy, self.damage, self.bulletSpeed);
				game.addChild(bullet);
				bullets.push(bullet);
				self.targetEnemy.bulletsTargetingThis.push(bullet);
				// --- Fire recoil effect for gunContainer (rotation only) ---
				// Stop any ongoing recoil tweens before starting a new one
				tween.stop(gunContainer, {
					scaleX: true,
					scaleY: true
				});
				// Store original scale values if not already stored
				if (gunContainer._restScaleX === undefined) {
					gunContainer._restScaleX = 1;
				}
				if (gunContainer._restScaleY === undefined) {
					gunContainer._restScaleY = 1;
				}
				// Reset scale to resting values before animating (in case of interrupted tweens)
				gunContainer.scaleX = gunContainer._restScaleX;
				gunContainer.scaleY = gunContainer._restScaleY;
				// Animate scale recoil effect (gun briefly shrinks then returns to normal)
				tween(gunContainer, {
					scaleX: gunContainer._restScaleX * 0.8,
					scaleY: gunContainer._restScaleY * 0.8
				}, {
					duration: 60,
					easing: tween.cubicOut,
					onFinish: function onFinish() {
						// Animate return to original scale
						tween(gunContainer, {
							scaleX: gunContainer._restScaleX,
							scaleY: gunContainer._restScaleY
						}, {
							duration: 90,
							easing: tween.cubicIn
						});
					}
				});
			}
		}
	};
	self.applyGradualUpgrades = function () {
		// Calculate gradual improvements based on level and progress
		var currentLevelBase = {
			fireRate: self.level === self.maxLevel ? Math.max(5, 60 - self.level * 24) : Math.max(20, 60 - self.level * 8),
			damage: self.level === self.maxLevel ? 10 + self.level * 20 : 10 + self.level * 5,
			bulletSpeed: self.level === self.maxLevel ? 5 + self.level * 2.4 : 5 + self.level * 0.5
		};
		// If not at max level, calculate gradual improvements
		if (self.level < self.maxLevel) {
			var nextLevelBase = {
				fireRate: self.level + 1 === self.maxLevel ? Math.max(5, 60 - (self.level + 1) * 24) : Math.max(20, 60 - (self.level + 1) * 8),
				damage: self.level + 1 === self.maxLevel ? 10 + (self.level + 1) * 20 : 10 + (self.level + 1) * 5,
				bulletSpeed: self.level + 1 === self.maxLevel ? 5 + (self.level + 1) * 2.4 : 5 + (self.level + 1) * 0.5
			};
			var progressRatio = self.upgradeProgress / self.upgradeRequiredClicks[self.level];
			// Apply gradual improvements
			self.fireRate = Math.round(currentLevelBase.fireRate + (nextLevelBase.fireRate - currentLevelBase.fireRate) * progressRatio);
			self.damage = currentLevelBase.damage + (nextLevelBase.damage - currentLevelBase.damage) * progressRatio;
			self.bulletSpeed = currentLevelBase.bulletSpeed + (nextLevelBase.bulletSpeed - currentLevelBase.bulletSpeed) * progressRatio;
		} else {
			// At max level, use final values
			self.fireRate = currentLevelBase.fireRate;
			self.damage = currentLevelBase.damage;
			self.bulletSpeed = currentLevelBase.bulletSpeed;
		}
	};
	self.placeOnGrid = function (gridX, gridY) {
		self.gridX = gridX;
		self.gridY = gridY;
		// ✅ No usar gameScale aquí
		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++) {
				if (grid.towerCells[gridX] && grid.towerCells[gridX][gridY] !== undefined) {
					grid.towerCells[gridX][gridY] = true;
				}
			}
		}
		self.refreshCellsInRange();
	};
	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 >= 5; // Base tower cost
		// 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();
		var previewRange = tempTower.getRange();
		// Clean up tempTower to avoid memory leaks
		if (tempTower && tempTower.destroy) {
			tempTower.destroy();
		}
		// Set range indicator using unified range logic
		var previewCircleScale = 1.83; // Cambia este valor para agrandar o achicar el círculo
		rangeGraphics.width = rangeGraphics.height = previewRange * 2 * previewCircleScale;
		previewGraphics.tint = 0xAAAAAA;
		if (!self.canPlace || !self.hasEnoughGold) {
			previewGraphics.tint = 0xFF0000;
		}
	};
	self.updatePlacementStatus = function () {
		var cell = grid.getCell(self.gridX, self.gridY);
		// Check if this cell is specifically an obstacle (not a wall)
		var cellNumber = (self.gridY - 4) * 12 + self.gridX + 1;
		var obstacleCells = [14, 17, 18, 19, 20, 21, 22, 23, 26, 35, 38, 39, 40, 41, 42, 43, 44, 45, 47, 50, 59, 62, 64, 65, 66, 67, 68, 69, 70, 71, 74, 83, 86, 87, 88, 89, 90, 91, 92, 93, 95, 98, 107, 110, 112, 113, 114, 115, 116, 117, 118, 119, 122, 130, 131, 16];
		var wallCells = [1, 2, 11, 12, 13, 24, 25, 36, 37, 48, 49, 60, 61, 72, 73, 84, 85, 96, 97, 108, 109, 120, 121, 132, 133, 134, 135, 142, 143, 144];
		// Check if there's already a tower at this exact position using separate tower tracking
		var existingTower = grid.towerCells[self.gridX] && grid.towerCells[self.gridX][self.gridY];
		// Check if this is a wall cell (towers cannot be placed on walls)
		var isWallCell = cellNumber >= 1 && cellNumber <= 144 && wallCells.indexOf(cellNumber) !== -1;
		// Allow placement on obstacle cells that don't have towers and are not walls
		var isObstacleCell = cellNumber >= 1 && cellNumber <= 144 && obstacleCells.indexOf(cellNumber) !== -1;
		// Only check the exact cell for tower placement, not neighboring cells
		var validGridPlacement = cell && !existingTower && isObstacleCell && !isWallCell;
		self.canPlace = validGridPlacement;
		self.hasEnoughGold = gold >= 5; // Base tower cost
		self.updateAppearance();
	};
	self.checkPlacement = function () {
		self.updatePlacementStatus();
	};
	self.snapToGrid = function (x, y) {
		var gridPosX = (x - grid.x) / gameScale;
		var gridPosY = (y - grid.y) / gameScale;
		// Para X dejamos el redondeo normal
		self.gridX = Math.round(gridPosX / CELL_SIZE);
		// Para Y, calculamos la fracción dentro de la celda
		var yInCell = gridPosY / CELL_SIZE % 1;
		// Si el mouse pasó más del 90% de la celda, pasamos a la siguiente celda (redondeo hacia arriba)
		if (yInCell > 0.9) {
			self.gridY = Math.ceil(gridPosY / CELL_SIZE);
		} else {
			self.gridY = Math.ceil(gridPosY / CELL_SIZE);
		}
		// Actualizamos la posición visual acorde a gridX, gridY
		self.x = grid.x + self.gridX * CELL_SIZE * gameScale;
		self.y = grid.y + self.gridY * CELL_SIZE * gameScale;
		self.checkPlacement();
	};
	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;
	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 (i === 1) {
			block.tint = 0x00AAFF;
			waveType = "Fast";
			enemyType = "fast";
			enemyCount = 10;
		} else if (i === 2) {
			block.tint = 0xAA0000;
			waveType = "Immune";
			enemyType = "immune";
			enemyCount = 10;
		} else if (i === 3) {
			block.tint = 0xFFFF00;
			waveType = "Flying";
			enemyType = "flying";
			enemyCount = 10;
		} else if (i === 4) {
			block.tint = 0xFF00FF;
			waveType = "Swarm";
			enemyType = "swarm";
			enemyCount = 30;
		} else if (isBossWave) {
			// Boss waves: cycle through all boss types, last boss is always flying
			var bossTypes = ['normal', 'fast', 'immune', 'flying'];
			var bossTypeIndex = Math.floor((i + 1) / 10) - 1;
			if (i === totalWaves - 1) {
				// Last boss is always flying
				enemyType = 'flying';
				waveType = "Boss Flying";
				block.tint = 0xFFFF00;
			} else {
				enemyType = bossTypes[bossTypeIndex % bossTypes.length];
				switch (enemyType) {
					case 'normal':
						block.tint = 0xAAAAAA;
						waveType = "Boss Normal";
						break;
					case 'fast':
						block.tint = 0x00AAFF;
						waveType = "Boss Fast";
						break;
					case 'immune':
						block.tint = 0xAA0000;
						waveType = "Boss Immune";
						break;
					case 'flying':
						block.tint = 0xFFFF00;
						waveType = "Boss Flying";
						break;
				}
			}
			enemyCount = 1;
			// Make the wave indicator for boss waves stand out
			// Set boss wave color to the color of the wave type
			switch (enemyType) {
				case 'normal':
					block.tint = 0xAAAAAA;
					break;
				case 'fast':
					block.tint = 0x00AAFF;
					break;
				case 'immune':
					block.tint = 0xAA0000;
					break;
				case 'flying':
					block.tint = 0xFFFF00;
					break;
				default:
					block.tint = 0xFF0000;
					break;
			}
		} else if ((i + 1) % 5 === 0) {
			// Every 5th non-boss wave is fast
			block.tint = 0x00AAFF;
			waveType = "Fast";
			enemyType = "fast";
			enemyCount = 10;
		} else if ((i + 1) % 4 === 0) {
			// Every 4th non-boss wave is immune
			block.tint = 0xAA0000;
			waveType = "Immune";
			enemyType = "immune";
			enemyCount = 10;
		} else if ((i + 1) % 7 === 0) {
			// Every 7th non-boss wave is flying
			block.tint = 0xFFFF00;
			waveType = "Flying";
			enemyType = "flying";
			enemyCount = 10;
		} else if ((i + 1) % 3 === 0) {
			// Every 3rd non-boss wave is swarm
			block.tint = 0xFF00FF;
			waveType = "Swarm";
			enemyType = "swarm";
			enemyCount = 30;
		} 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 - 1) * 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; i++) {
			var marker = self.waveMarkers[i];
			var block = marker.children[0];
			if (i < currentWave) {
				block.alpha = .5;
			}
			// Hide markers that are completely outside the left side of the yellow indicator rectangle
			var leftEdge = self.positionIndicator.x - (blockWidth - 16) / 2;
			if (marker.x + blockWidth / 2 < leftEdge) {
				marker.visible = false;
			} else {
				marker.visible = true;
			}
		}
		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 CELL_SIZE = 76;
var pathId = 1;
var maxScore = 0;
var enemies = [];
var towers = [];
var bullets = [];
var defenses = [];
var selectedTower = null;
var rangeDisplayTower = null; // Track which tower is showing range
var pressedTower = null; // Track which tower is being pressed
var pressStartTime = 0; // Track when the press started
var pressTimer = null; // Timer for checking press duration
var gold = 10000; // Oro;
var lives = 3;
var score = 0;
var currentWave = 0;
var totalWaves = 50;
var waveTimer = 0;
var waveInProgress = false;
var waveSpawned = false;
var nextWaveTime = 12000 / 4;
var sourceTower = null;
var enemiesToSpawn = 10; // Default number of enemies per wave
var goldText = new Text2('Gold: ' + gold, {
	size: 60,
	fill: 0xFFD700,
	weight: 800
});
goldText.anchor.set(0.5, 0.5);
var livesText = new Text2('Lives: ' + lives, {
	size: 60,
	fill: 0x00FF00,
	weight: 800
});
livesText.anchor.set(0.5, 0.5);
var 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();
}
var debugLayer = new Container();
var towerLayer = new Container();
// Create three separate layers for enemy hierarchy
var enemyLayerBottom = new Container(); // For normal enemies
var enemyLayerMiddle = new Container(); // For shadows
var enemyLayerTop = new Container(); // For flying enemies
var enemyLayer = new Container(); // Main container to hold all enemy layers
// Add layers in correct order (bottom first, then middle for shadows, then top)
enemyLayer.addChild(enemyLayerBottom);
enemyLayer.addChild(enemyLayerMiddle);
enemyLayer.addChild(enemyLayerTop);
var grid = new Grid(12, 13 + 6);
// Calculate scale to fill full screen width (2048px) with the 11-cell width
var gameScale = 2048 / (12 * CELL_SIZE); // Scale factor to fill screen width
grid.scaleX = gameScale;
grid.scaleY = gameScale;
grid.x = 40 * gameScale; // Move 40 units right (10 + 20 + 10) and scale
grid.y = (200 - CELL_SIZE * 4 - 20 - 30) * gameScale; // Move up 50 units total (20 + 30) and scale the Y position accordingly
grid.pathFind();
grid.renderDebug();
debugLayer.addChild(grid);
game.addChild(debugLayer);
// Scale tower layer to match grid
towerLayer.scaleX = gameScale;
towerLayer.scaleY = gameScale;
game.addChild(towerLayer);
// Scale enemy layer to match grid
enemyLayer.scaleX = gameScale;
enemyLayer.scaleY = gameScale;
game.addChild(enemyLayer);
var offset = 0;
var towerPreview = new TowerPreview();
game.addChild(towerPreview);
towerPreview.visible = false;
var isDragging = false;
function wouldBlockPath(gridX, gridY) {
	// Use offset coordinates for consistency with placement verification
	var checkGridX = Math.floor(gridX + 0.5);
	var checkGridY = Math.floor(gridY + 0.5);
	var cells = [];
	for (var i = 0; i < 2; i++) {
		for (var j = 0; j < 2; j++) {
			var cell = grid.getCell(checkGridX + i, checkGridY + 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() {
	return 5; // Base tower cost
}
function getTowerSellValue(totalValue) {
	return waveIndicator && waveIndicator.gameStarted ? Math.floor(totalValue * 0.6) : totalValue;
}
function placeTower(gridX, gridY) {
	var towerCost = getTowerCost();
	if (gold >= towerCost) {
		// Double-check that the cell is available for placement
		var cellNumber = (gridY - 4) * 12 + gridX + 1;
		var obstacleCells = [14, 17, 18, 19, 20, 21, 22, 23, 26, 35, 38, 39, 40, 41, 42, 43, 44, 45, 47, 50, 59, 62, 64, 65, 66, 67, 68, 69, 70, 71, 74, 83, 86, 87, 88, 89, 90, 91, 92, 93, 95, 98, 107, 110, 112, 113, 114, 115, 116, 117, 118, 119, 122, 130, 131, 16];
		var wallCells = [1, 2, 11, 12, 13, 24, 25, 36, 37, 48, 49, 60, 61, 72, 73, 84, 85, 96, 97, 108, 109, 120, 121, 132, 133, 134, 135, 142, 143, 144];
		var isObstacleCell = cellNumber >= 1 && cellNumber <= 144 && obstacleCells.indexOf(cellNumber) !== -1;
		var isWallCell = cellNumber >= 1 && cellNumber <= 144 && wallCells.indexOf(cellNumber) !== -1;
		var existingTower = grid.towerCells[gridX] && grid.towerCells[gridX][gridY];
		if (isObstacleCell && !isWallCell && !existingTower) {
			var tower = new Tower();
			tower.placeOnGrid(gridX, gridY);
			towerLayer.addChild(tower);
			towers.push(tower);
			setGold(gold - towerCost);
			grid.renderDebug();
			return true;
		} else {
			var notification = game.addChild(new Notification("Cannot build here!"));
			notification.x = 2048 / 2;
			notification.y = grid.height - 50;
			return false;
		}
	} 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) {
	// Check for the normal tower next to red button (buttonTower)
	if (x >= buttonTower.x - buttonTower.width / 2 && x <= buttonTower.x + buttonTower.width / 2 && y >= buttonTower.y - buttonTower.height / 2 && y <= buttonTower.y + buttonTower.height / 2) {
		towerPreview.visible = true;
		isDragging = true;
		towerPreview.updateAppearance();
		// Apply the same offset as in move handler to ensure consistency when starting drag
		towerPreview.snapToGrid(x, y - CELL_SIZE * 1.5);
		return;
	}
	// Check if clicking on any existing tower - if not, hide range
	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;
		}
	}
	// If not clicking on a tower, hide the range display
	if (!clickedOnTower && rangeDisplayTower) {
		rangeDisplayTower.hideRangeIndicator();
		rangeDisplayTower = null;
	}
};
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);
	}
};
game.up = function (x, y, obj) {
	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;
		}
	}
	// Clear press timer when releasing anywhere
	if (pressedTower) {
		pressedTower = null;
		if (pressTimer) {
			LK.clearTimeout(pressTimer);
			pressTimer = null;
		}
	}
	if (isDragging) {
		isDragging = false;
		if (towerPreview.canPlace) {
			placeTower(towerPreview.gridX, towerPreview.gridY);
		} 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;
	}
};
var waveIndicator = new WaveIndicator();
waveIndicator.x = 2048 / 2 + 400;
waveIndicator.y = 2732 - 80;
game.addChild(waveIndicator);
// Start the game immediately
waveIndicator.gameStarted = true;
currentWave = 0;
waveTimer = nextWaveTime;
// Create simple tower asset next to red button for dragging
var buttonTower = new Container();
var buttonTowerGraphics = buttonTower.attachAsset('tower', {
	anchorX: 0.5,
	anchorY: 0.5
});
buttonTowerGraphics.tint = 0xAAAAAA;
buttonTowerGraphics.scaleX = 1.3;
buttonTowerGraphics.scaleY = 1.3;
buttonTower.x = 300;
buttonTower.y = 2732 - 150;
buttonTower.width = buttonTowerGraphics.width * 1.3;
buttonTower.height = buttonTowerGraphics.height * 1.3;
game.addChild(buttonTower);
sourceTower = null;
enemiesToSpawn = 10;
// Create red button for manual firing and gold generation
var redButton = new Container();
var redButtonGraphics = redButton.attachAsset('redButton', {
	anchorX: 0.5,
	anchorY: 0.5
});
redButton.x = 150;
redButton.y = 2732 - 150;
redButton.isPressed = false;
game.addChild(redButton);
// Button functionality
redButton.down = function (x, y, obj) {
	if (!redButton.isPressed) {
		redButton.isPressed = true;
		// Change button appearance to pressed state
		redButton.removeChild(redButtonGraphics);
		redButtonGraphics = redButton.attachAsset('redButtonPressed', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// Give 1 gold
		setGold(gold + 1);
		// Show gold increment indicator
		var goldIndicator = game.addChild(new GoldIndicator(1, redButton.x, redButton.y));
		// Towers should not fire when red button is pressed
		// Red button now only gives gold
	}
};
redButton.up = function (x, y, obj) {
	if (redButton.isPressed) {
		redButton.isPressed = false;
		// Change button back to normal state
		redButton.removeChild(redButtonGraphics);
		redButtonGraphics = redButton.attachAsset('redButton', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	}
};
game.update = function () {
	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 && waveType !== 'swarm') {
				// Boss waves have just 1 enemy regardless of what the wave indicator says
				enemyCount = 1;
				// Show boss announcement
				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 = 12;
				var midPoint = Math.floor(gridWidth / 2); // 6
				// 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 - i * 2 - Math.random() * 2; // Increased spacing between enemies
				enemy.cellX = spawnX;
				enemy.cellY = 5; // Position after entry
				enemy.currentCellX = spawnX;
				enemy.currentCellY = spawnY;
				enemy.waveNumber = currentWave;
				enemies.push(enemy);
			}
		}
		var currentWaveEnemiesRemaining = false;
		for (var i = 0; i < enemies.length; i++) {
			if (enemies[i].waveNumber === currentWave) {
				currentWaveEnemiesRemaining = true;
				break;
			}
		}
		if (waveSpawned && !currentWaveEnemiesRemaining) {
			waveInProgress = false;
			waveSpawned = false;
		}
	}
	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;
			}
			// Enemies no longer give gold when killed
			// Gold indicator and gold earning removed
			// 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!"));
				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();
	}
};