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

/**** 
* Classes
****/ 
// Add level to Carrier (worker)
var Carrier = Container.expand(function () {
	var self = Container.call(this);
	var carrierSprite = self.attachAsset('carrier', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.level = 1; // Carrier level
	self.speed = 7;
	self.state = 'idle'; // 'idle', 'toFactory', 'toShop'
	self.target = null;
	self.carrying = false;
	self.factoryTarget = null;
	self.shopTarget = null;
	self.goToFactory = function (factory) {
		self.state = 'toFactory';
		self.target = {
			x: factory.x,
			y: factory.y
		};
		self.factoryTarget = factory;
	};
	self.goToShop = function (shop) {
		self.state = 'toShop';
		self.target = {
			x: shop.x,
			y: shop.y
		};
		self.shopTarget = shop;
	};
	self.setIdle = function () {
		self.state = 'idle';
		self.target = null;
		self.factoryTarget = null;
		self.shopTarget = null;
		self.carrying = false;
	};
	self.moveTowards = function (tx, ty) {
		var dx = tx - self.x;
		var dy = ty - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		var moveSpeed = (self.speed + (self.level - 1) * 1) * getMoveMultiplier(self.level);
		if (dist < moveSpeed) {
			self.x = tx;
			self.y = ty;
			return true;
		}
		self.x += dx / dist * moveSpeed;
		self.y += dy / dist * moveSpeed;
		return false;
	};
	self.update = function () {
		if (self.state === 'toFactory' && self.factoryTarget) {
			if (self.moveTowards(self.factoryTarget.x, self.factoryTarget.y)) {
				// Arrived at factory
				if (!self.carrying && self.factoryTarget.productBuffer > 0) {
					self.factoryTarget.productBuffer--;
					self.carrying = true;
					if (shopList.length > 0) {
						self.goToShop(shopList[0]);
					} else {
						self.setIdle();
					}
				} else {
					self.setIdle();
				}
			}
		} else if (self.state === 'toShop' && self.shopTarget) {
			if (self.moveTowards(self.shopTarget.x, self.shopTarget.y)) {
				// Arrived at shop
				if (self.carrying) {
					// Deliver product to shop
					if (self.shopTarget && typeof self.shopTarget.productBuffer === "number") {
						self.shopTarget.productBuffer++;
					}
					self.carrying = false;
				}
				if (factoryList.length > 0 && factoryList[0].productBuffer > 0) {
					self.goToFactory(factoryList[0]);
				} else {
					self.setIdle();
				}
			}
		} else if (self.state === 'idle') {
			// Look for product to carry
			if (factoryList.length > 0 && factoryList[0].productBuffer > 0) {
				self.goToFactory(factoryList[0]);
			}
		}
	};
	return self;
});
// Add level to City
var City = Container.expand(function () {
	var self = Container.call(this);
	// Add city color image
	var citySprite = self.attachAsset('city', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.level = 1; // City level
	self.x = 150; // Move city to upper left side, but not in the 0-100px menu area
	self.y = 150; // Top left, but not in the 0-100px menu area
	self.customerSpawnCooldown = 0;
	self.customerSpawnInterval = 180; // 3 seconds at 60fps
	self.update = function () {
		self.customerSpawnCooldown--;
		if (self.customerSpawnCooldown <= 0) {
			self.customerSpawnCooldown = Math.max(30, self.customerSpawnInterval - (self.level - 1) * 30) + Math.floor(Math.random() * 120);
			spawnCustomer();
		}
	};
	return self;
});
// Customer: Walks from city to shop, buys product if available, then leaves
var Customer = Container.expand(function () {
	var self = Container.call(this);
	// Pick a random customer image for this customer
	var customerImages = ['customer1', 'customer2', 'customer3', 'customer4', 'customer5'];
	var customerImgId = customerImages[Math.floor(Math.random() * customerImages.length)];
	var customerSprite = self.attachAsset(customerImgId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5 + Math.random() * 2;
	self.state = 'toShop'; // 'toShop', 'leaving'
	self.targetShop = null;
	self.hasBought = false;
	self.moveTowards = function (tx, ty) {
		var dx = tx - self.x;
		var dy = ty - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		var moveSpeed = self.speed * getMoveMultiplier(1); // Customers have no level, always use 1
		if (dist < moveSpeed) {
			self.x = tx;
			self.y = ty;
			return true;
		}
		self.x += dx / dist * moveSpeed;
		self.y += dy / dist * moveSpeed;
		return false;
	};
	self.update = function () {
		if (self.state === 'toShop' && self.targetShop) {
			if (self.moveTowards(self.targetShop.x, self.targetShop.y)) {
				// Arrived at shop
				if (!self.hasBought && self.targetShop.productBuffer > 0) {
					self.targetShop.productBuffer--;
					money += 10;
					updateMoneyText();
					self.hasBought = true;
					self.state = 'leaving';
					self.leaveTarget = {
						x: self.x,
						y: -100
					}; // leave upwards
				} else {
					// No product, leave anyway
					self.state = 'leaving';
					self.leaveTarget = {
						x: self.x,
						y: -100
					};
				}
			}
		} else if (self.state === 'leaving') {
			if (self.moveTowards(self.leaveTarget.x, self.leaveTarget.y)) {
				// Remove from game
				for (var i = 0; i < customerList.length; i++) {
					if (customerList[i] === self) {
						customerList.splice(i, 1);
						break;
					}
				}
				self.destroy();
			}
		}
	};
	return self;
});
// Factory: Converts ore to product over time
var Factory = Container.expand(function () {
	var self = Container.call(this);
	var factorySprite = self.attachAsset('factory', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.level = 1; // Factory level
	self.oreBuffer = 0; // ore waiting to be processed
	self.productBuffer = 0; // products ready to be sold
	self.processTime = 60; // ticks to process one ore
	self.processCounter = 0;
	self.update = function () {
		if (self.oreBuffer > 0) {
			self.processCounter++;
			if (self.processCounter >= Math.max(10, self.processTime - (self.level - 1) * 10)) {
				self.oreBuffer--;
				self.productBuffer++;
				self.processCounter = 0;
			}
		} else {
			self.processCounter = 0;
		}
	};
	return self;
});
// Mine: Contains ore, can be depleted
var Mine = Container.expand(function () {
	var self = Container.call(this);
	// Pick a random ore image for this mine
	var oreImages = ['ore1', 'ore2', 'ore3', 'ore4', 'ore5', 'ore6', 'ore7', 'ore8', 'ore9', 'ore10'];
	var oreImgId = oreImages[Math.floor(Math.random() * oreImages.length)];
	var mineSprite = self.attachAsset(oreImgId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.ore = 10; // initial ore
	self.setOre = function (amount) {
		self.ore = amount;
	};
	return self;
});
// Add level to Miner (worker)
var Miner = Container.expand(function () {
	var self = Container.call(this);
	// Miner visual
	var minerImages = ['miner1', 'miner2', 'miner3', 'miner4', 'miner5'];
	var minerImgId = minerImages[Math.floor(Math.random() * minerImages.length)];
	var minerSprite = self.attachAsset(minerImgId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.level = 1; // Worker level
	self.speed = 6; // px per tick
	self.state = 'idle'; // 'idle', 'toMine', 'mining', 'toFactory', 'toShop'
	self.target = null; // {x, y}
	self.carrying = null; // 'ore' or 'product' or null
	self.mineTarget = null; // reference to Mine
	self.factoryTarget = null; // reference to Factory
	// Mining animation state
	self.miningTicks = 0;
	self.miningDuration = 120; // 2 seconds at 60fps (ores are mined 100% slower)
	self.pickaxeIcon = null;
	// Set miner to go to a mine
	self.goToMine = function (mine) {
		self.state = 'toMine';
		self.target = {
			x: mine.x,
			y: mine.y
		};
		self.mineTarget = mine;
	};
	// Set miner to go to factory
	self.goToFactory = function (factory) {
		self.state = 'toFactory';
		self.target = {
			x: factory.x,
			y: factory.y
		};
		self.factoryTarget = factory;
	};
	// Set miner to idle
	self.setIdle = function () {
		self.state = 'idle';
		self.target = null;
		self.mineTarget = null;
		self.factoryTarget = null;
		self.miningTicks = 0;
		if (self.pickaxeIcon) {
			self.pickaxeIcon.destroy();
			self.pickaxeIcon = null;
		}
	};
	// Move towards target
	self.moveTowards = function (tx, ty) {
		var dx = tx - self.x;
		var dy = ty - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		var moveSpeed = (self.speed + (self.level - 1) * 1) * getMoveMultiplier(self.level);
		if (dist < moveSpeed) {
			self.x = tx;
			self.y = ty;
			return true;
		}
		self.x += dx / dist * moveSpeed;
		self.y += dy / dist * moveSpeed;
		return false;
	};
	// Called every tick
	self.update = function () {
		if (self.state === 'toMine' && self.mineTarget) {
			if (self.moveTowards(self.mineTarget.x, self.mineTarget.y)) {
				// Arrived at mine
				if (self.mineTarget.ore > 0 && !self.carrying) {
					// Start mining animation
					self.state = 'mining';
					self.miningTicks = 0;
					// Add pickaxe icon if not present
					if (!self.pickaxeIcon) {
						self.pickaxeIcon = LK.getAsset('pickaxe', {
							anchorX: 0.5,
							anchorY: 1.2,
							x: 0,
							y: -60
						});
						self.addChild(self.pickaxeIcon);
					}
					// Animate pickaxe (simple up-down)
					tween(self.pickaxeIcon, {
						y: -80
					}, {
						duration: 200,
						easing: tween.cubicInOut,
						onFinish: function onFinish() {
							if (self.pickaxeIcon) {
								tween(self.pickaxeIcon, {
									y: -60
								}, {
									duration: 200,
									easing: tween.cubicInOut
								});
							}
						}
					});
				} else {
					self.setIdle();
				}
			}
		} else if (self.state === 'mining' && self.mineTarget) {
			self.miningTicks++;
			// Animate pickaxe every 20 ticks
			if (self.pickaxeIcon && self.miningTicks % 20 === 0) {
				tween(self.pickaxeIcon, {
					y: -80
				}, {
					duration: 100,
					easing: tween.cubicInOut,
					onFinish: function onFinish() {
						if (self.pickaxeIcon) {
							tween(self.pickaxeIcon, {
								y: -60
							}, {
								duration: 100,
								easing: tween.cubicInOut
							});
						}
					}
				});
			}
			if (self.miningTicks >= Math.max(10, self.miningDuration - (self.level - 1) * 10)) {
				if (self.mineTarget.ore > 0 && !self.carrying) {
					self.mineTarget.ore--;
					self.carrying = 'ore';
					if (self.pickaxeIcon) {
						self.pickaxeIcon.destroy();
						self.pickaxeIcon = null;
					}
					self.goToFactory(factoryList[0]);
				} else {
					self.setIdle();
				}
			}
		} else if (self.state === 'toFactory' && self.factoryTarget) {
			if (self.moveTowards(self.factoryTarget.x, self.factoryTarget.y)) {
				// Arrived at factory
				if (self.carrying === 'ore') {
					self.carrying = null;
					self.factoryTarget.oreBuffer++;
					self.setIdle();
				} else {
					self.setIdle();
				}
			}
		} else if (self.state === 'idle') {
			// Find nearest mine with ore
			var bestMine = null;
			var bestDist = Infinity;
			for (var i = 0; i < mineList.length; i++) {
				var m = mineList[i];
				if (m.ore > 0) {
					var dx = m.x - self.x;
					var dy = m.y - self.y;
					var d = dx * dx + dy * dy;
					if (d < bestDist) {
						bestDist = d;
						bestMine = m;
					}
				}
			}
			if (bestMine) {
				self.goToMine(bestMine);
			}
		}
	};
	return self;
});
// Researcher: When a mine is depleted, finds a new mine location and spawns it
var Researcher = Container.expand(function () {
	var self = Container.call(this);
	// Visual for researcher
	var researcherSprite = self.attachAsset('miner', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	researcherSprite.tint = 0x1a8ffc; // blue tint for distinction
	self.speed = 5;
	self.state = 'idle'; // 'idle', 'moving', 'researching'
	self.target = null;
	self.researchTicks = 0;
	self.researchDuration = 90; // 1.5 seconds
	self.moveTowards = function (tx, ty) {
		var dx = tx - self.x;
		var dy = ty - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		var moveSpeed = self.speed * getMoveMultiplier(1); // Researchers have no level, always use 1
		if (dist < moveSpeed) {
			self.x = tx;
			self.y = ty;
			return true;
		}
		self.x += dx / dist * moveSpeed;
		self.y += dy / dist * moveSpeed;
		return false;
	};
	self.startResearch = function (tx, ty) {
		self.state = 'moving';
		self.target = {
			x: tx,
			y: ty
		};
		self.researchTicks = 0;
	};
	self.update = function () {
		if (self.state === 'moving' && self.target) {
			if (self.moveTowards(self.target.x, self.target.y)) {
				// If we just finished research, set to idle after returning to start
				if (self.researchTicks >= self.researchDuration) {
					self.state = 'idle';
					self.target = null;
					self.researchTicks = 0;
				} else {
					self.state = 'researching';
					self.researchTicks = 0;
				}
			}
		} else if (self.state === 'researching') {
			self.researchTicks++;
			if (self.researchTicks >= self.researchDuration) {
				// Spawn new mine at this location
				var mine = new Mine();
				mine.x = self.x;
				mine.y = self.y;
				mineList.push(mine);
				game.addChild(mine);
				// After finding ore, move researcher to starting position and wait there
				self.state = 'moving';
				self.target = {
					x: 1024,
					// worker start image x
					y: 2400 // worker start image y
				};
			}
		}
	};
	return self;
});
// Shop: Holds products for sale, customers come to buy
var Shop = Container.expand(function () {
	var self = Container.call(this);
	var shopSprite = self.attachAsset('shop', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.productBuffer = 0; // products available in shop
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x222222
});

/**** 
* Game Code
****/ 
// Add a background image to the game
var baseMoveMultiplier = 0.5; // Everyone moves 50% slower by default
function getMoveMultiplier(level) {
	// Each level increases speed by 2% (so multiplier increases)
	// Level 1: 0.5, Level 2: 0.5*1.02, Level 3: 0.5*1.04, etc.
	return baseMoveMultiplier * (1 + 0.02 * (level - 1));
}
var backgroundImg = LK.getAsset('background', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1366,
	scaleX: 1,
	scaleY: 1
});
backgroundImg.alpha = 1;
game.addChildAt(backgroundImg, 0); // Add as the bottom-most layer
// City colored image asset (example: blue city icon)
// Global game state
var minerList = [];
var mineList = [];
var factoryList = [];
var shopList = [];
var carrierList = [];
var researcherList = [];
var customerList = [];
var money = 50;
var city = null;
function spawnCustomer() {
	if (shopList.length === 0) return;
	var customer = new Customer();
	customer.x = city.x;
	customer.y = city.y + 40;
	customer.targetShop = shopList[0];
	customerList.push(customer);
	game.addChild(customer);
}
function spawnResearcher() {
	var researcher = new Researcher();
	// Place at random near bottom
	researcher.x = 200 + Math.random() * 1600;
	researcher.y = 2300 + Math.random() * 200;
	researcherList.push(researcher);
	game.addChild(researcher);
}
function spawnCarrier() {
	var carrier = new Carrier();
	// Place at random near bottom
	carrier.x = 600 + Math.random() * 800;
	carrier.y = 2300 + Math.random() * 200;
	carrierList.push(carrier);
	game.addChild(carrier);
}
// UI
var moneyText = new Text2('₺' + money, {
	size: 36,
	fill: 0xFFE066
});
moneyText.anchor.set(0.5, 0);
LK.gui.top.addChild(moneyText);
function updateMoneyText() {
	moneyText.setText('₺' + money);
}
// Add buttons for buying miners and mines
var buyMinerBtn = new Text2('Madenci Al (₺30)', {
	size: 36,
	fill: "#fff"
});
buyMinerBtn.anchor.set(0.5, 0.5);
buyMinerBtn.x = 400;
buyMinerBtn.y = 100;
LK.gui.top.addChild(buyMinerBtn);
// Add 'Taşıyıcı Al' text below 'Madenci Al'
var carrierLabel = new Text2('Taşıyıcı Al', {
	size: 36,
	fill: "#fff"
});
carrierLabel.anchor.set(0.5, 0.5);
carrierLabel.x = 400;
carrierLabel.y = 170;
LK.gui.top.addChild(carrierLabel);
var buyMineBtn = new Text2('Maden Aç (₺40)', {
	size: 36,
	fill: "#fff"
});
buyMineBtn.anchor.set(0.5, 0.5);
buyMineBtn.x = 900;
buyMineBtn.y = 100;
LK.gui.top.addChild(buyMineBtn);
var buyFactoryBtn = new Text2('Fabrika Kur (₺60)', {
	size: 36,
	fill: "#fff"
});
buyFactoryBtn.anchor.set(0.5, 0.5);
buyFactoryBtn.x = 1500;
buyFactoryBtn.y = 100;
LK.gui.top.addChild(buyFactoryBtn);
var buyCarrierBtn = new Text2('Taşıyıcı Al (₺25)', {
	size: 36,
	fill: "#fff"
});
buyCarrierBtn.anchor.set(0.5, 0.5);
buyCarrierBtn.x = 2000;
buyCarrierBtn.y = 100;
LK.gui.top.addChild(buyCarrierBtn);
buyCarrierBtn.down = function () {
	if (money >= 25) {
		money -= 25;
		updateMoneyText();
		spawnCarrier();
	}
};
// Button events
buyMinerBtn.down = function () {
	if (money >= 30) {
		money -= 30;
		updateMoneyText();
		spawnMiner();
	}
};
buyMineBtn.down = function () {
	if (money >= 40) {
		money -= 40;
		updateMoneyText();
		spawnMine();
	}
};
buyFactoryBtn.down = function () {
	if (money >= 60) {
		money -= 60;
		updateMoneyText();
		spawnFactory();
	}
};
// Spawning functions
function spawnMiner() {
	var miner = new Miner();
	// Place at random near bottom
	miner.x = 400 + Math.random() * 1200;
	miner.y = 2300 + Math.random() * 200;
	minerList.push(miner);
	game.addChild(miner);
}
function spawnMine() {
	var mine = new Mine();
	// Place at random in upper half
	mine.x = 300 + Math.random() * 1400;
	mine.y = 600 + Math.random() * 600;
	mineList.push(mine);
	game.addChild(mine);
}
function spawnFactory() {
	var factory = new Factory();
	// Place at center
	factory.x = 1024;
	factory.y = 1600;
	factoryList.push(factory);
	game.addChild(factory);
}
function spawnShop() {
	var shop = new Shop();
	shop.x = 1024;
	shop.y = 350;
	shopList.push(shop);
	game.addChild(shop);
}
// Initial setup
// Add worker start position image at bottom center
var workerStartImg = LK.getAsset('workerStart', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 2400
});
game.addChild(workerStartImg);
spawnMine();
spawnMine();
spawnFactory();
spawnShop();
spawnMiner();
spawnCarrier();
spawnResearcher();
city = new City();
game.addChild(city);
// Shop sell timer REMOVED: Carriers now deliver products
// Dragging mines/factories for placement (future feature, not implemented now)
// Main game update
game.update = function () {
	if (city) city.update();
	// Update all customers
	for (var i = 0; i < customerList.length; i++) {
		customerList[i].update();
	}
	// Update all miners
	for (var i = 0; i < minerList.length; i++) {
		minerList[i].update();
	}
	// Update all factories
	for (var i = 0; i < factoryList.length; i++) {
		factoryList[i].update();
	}
	// Update all carriers
	for (var i = 0; i < carrierList.length; i++) {
		carrierList[i].update();
	}
	// Update all researchers
	for (var i = 0; i < researcherList.length; i++) {
		researcherList[i].update();
	}
	// Remove depleted mines and assign researcher to find new mine
	for (var i = mineList.length - 1; i >= 0; i--) {
		if (mineList[i].ore <= 0) {
			// Find an idle researcher
			var assigned = false;
			for (var r = 0; r < researcherList.length; r++) {
				var researcher = researcherList[r];
				if (researcher.state === 'idle') {
					// Pick a random location in upper half for new mine
					var tx = 300 + Math.random() * 1400;
					var ty = 600 + Math.random() * 600;
					researcher.startResearch(tx, ty);
					assigned = true;
					break;
				}
			}
			mineList[i].destroy();
			mineList.splice(i, 1);
		}
	}
};
// Show product/ore/factory status as text overlays
var statusTexts = [];
function updateStatusTexts() {
	// Remove old
	for (var i = 0; i < statusTexts.length; i++) {
		statusTexts[i].destroy();
	}
	statusTexts = [];
	// Mines
	for (var i = 0; i < mineList.length; i++) {
		var t = new Text2('Cevher: ' + mineList[i].ore, {
			size: 36,
			fill: "#fff"
		});
		t.anchor.set(0.5, 1);
		t.x = mineList[i].x;
		t.y = mineList[i].y - 80;
		game.addChild(t);
		statusTexts.push(t);
	}
	// Factories
	for (var i = 0; i < factoryList.length; i++) {
		var t = new Text2('Cevher: ' + factoryList[i].oreBuffer + '\nÜrün: ' + factoryList[i].productBuffer, {
			size: 36,
			fill: "#fff"
		});
		t.anchor.set(0.5, 1);
		t.x = factoryList[i].x;
		t.y = factoryList[i].y - 80;
		game.addChild(t);
		statusTexts.push(t);
	}
	// Shops
	for (var i = 0; i < shopList.length; i++) {
		var t = new Text2('Ürün: ' + shopList[i].productBuffer, {
			size: 36,
			fill: "#fff"
		});
		t.anchor.set(0.5, 1);
		t.x = shopList[i].x;
		t.y = shopList[i].y - 80;
		game.addChild(t);
		statusTexts.push(t);
	}
}
var statusTimer = LK.setInterval(updateStatusTexts, 400);
// Prevent UI overlap with top left menu
// (All UI is placed away from top left 100x100 px)
buyMinerBtn.x = 400;
buyMineBtn.x = 900;
buyFactoryBtn.x = 1500;
// --- LEVEL PANEL (BOTTOM LEFT) ---
// --- LEVEL PANEL (BOTTOM LEFT) ---
// Resize and align the level panel and its contents for a more organized look
var levelPanelBg = LK.getAsset('customer', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	scaleX: 2.7,
	// wider panel
	scaleY: 6.5 // slightly less tall
});
levelPanelBg.alpha = 0.32;
LK.gui.left.addChild(levelPanelBg);
// Level panel text, larger and left-aligned
var levelPanelText = new Text2('', {
	size: 36,
	fill: "#fff"
});
levelPanelText.anchor.set(0, 0);
levelPanelText.x = 40;
levelPanelText.y = 40;
LK.gui.left.addChild(levelPanelText);
// --- UPGRADE BUTTONS AND COSTS ---
var upgradeButtons = [];
var upgradeCostTexts = [];
var upgradeTypes = [{
	label: "Şehir",
	key: "city",
	color: 0x4FC3F7,
	costBase: 100,
	costStep: 100
}, {
	label: "Fabrika",
	key: "factory",
	color: 0xFFD54F,
	costBase: 80,
	costStep: 80
}, {
	label: "Mağaza",
	key: "shop",
	color: 0x81C784,
	costBase: 80,
	costStep: 80
}, {
	label: "Madenci",
	key: "miner",
	color: 0xFF8A65,
	costBase: 60,
	costStep: 60
}, {
	label: "Taşıyıcı",
	key: "carrier",
	color: 0xBA68C8,
	costBase: 60,
	costStep: 60
}];
// Layout constants for alignment
var panelLeft = 40;
var panelTop = 40;
var rowHeight = 100;
var btnSize = 70;
var btnOffsetX = 420;
var costOffsetX = 510;
var textSize = 60;
var btnTextSize = 36;
var costTextSize = 36;
// Create upgrade buttons and cost texts, aligned in a row with the level text
for (var i = 0; i < upgradeTypes.length; i++) {
	// Upgrade button
	var btn = new Text2("▲", {
		size: btnTextSize,
		fill: upgradeTypes[i].color
	});
	btn.anchor.set(0, 0.5);
	btn.x = btnOffsetX;
	btn.y = panelTop + i * rowHeight + textSize / 2 + 8;
	LK.gui.left.addChild(btn);
	upgradeButtons.push(btn);
	// Cost text
	var costTxt = new Text2("", {
		size: costTextSize,
		fill: "#fff"
	});
	costTxt.anchor.set(0, 0.5);
	costTxt.x = costOffsetX;
	costTxt.y = panelTop + i * rowHeight + textSize / 2 + 8;
	LK.gui.left.addChild(costTxt);
	upgradeCostTexts.push(costTxt);
}
// --- LEVEL PANEL UPDATE ---
function updateLevelPanel() {
	// Find max levels for each type
	var factoryLevel = 0;
	for (var i = 0; i < factoryList.length; i++) {
		if (factoryList[i].level > factoryLevel) factoryLevel = factoryList[i].level;
	}
	var shopLevel = 0;
	for (var i = 0; i < shopList.length; i++) {
		if (shopList[i].level > shopLevel) shopLevel = shopList[i].level;
	}
	var cityLevel = city && city.level ? city.level : 1;
	var minerLevel = 0;
	for (var i = 0; i < minerList.length; i++) {
		if (minerList[i].level > minerLevel) minerLevel = minerList[i].level;
	}
	var carrierLevel = 0;
	for (var i = 0; i < carrierList.length; i++) {
		if (carrierList[i].level > carrierLevel) carrierLevel = carrierList[i].level;
	}
	levelPanelText.setText("Şehir Seviyesi: " + cityLevel + "\nFabrika Seviyesi: " + (factoryLevel || 1) + "\nMağaza Seviyesi: " + (shopLevel || 1) + "\nMadenci Seviyesi: " + (minerLevel || 1) + "\nTaşıyıcı Seviyesi: " + (carrierLevel || 1));
	// Update cost texts
	var levels = [cityLevel, factoryLevel || 1, shopLevel || 1, minerLevel || 1, carrierLevel || 1];
	for (var i = 0; i < upgradeTypes.length; i++) {
		var cost = upgradeTypes[i].costBase + (levels[i] - 1) * upgradeTypes[i].costStep;
		upgradeCostTexts[i].setText("₺" + cost);
		// Gray out if not enough money
		if (money < cost) {
			upgradeButtons[i].alpha = 0.4;
			upgradeCostTexts[i].alpha = 0.4;
		} else {
			upgradeButtons[i].alpha = 1;
			upgradeCostTexts[i].alpha = 1;
		}
	}
}
var levelPanelTimer = LK.setInterval(updateLevelPanel, 400);
// --- LEVEL UPGRADES (button per type) ---
upgradeButtons[0].down = function () {
	// City
	var cost = 100 + ((city && city.level ? city.level : 1) - 1) * 100;
	if (city && money >= cost) {
		city.level++;
		money -= cost;
		updateMoneyText();
		updateLevelPanel();
	}
};
upgradeButtons[1].down = function () {
	// Factory
	var factoryLevel = factoryList.length > 0 ? factoryList[0].level : 1;
	var cost = 80 + (factoryLevel - 1) * 80;
	if (factoryList.length > 0 && money >= cost) {
		factoryList[0].level++;
		money -= cost;
		updateMoneyText();
		updateLevelPanel();
	}
};
upgradeButtons[2].down = function () {
	// Shop
	var shopLevel = shopList.length > 0 ? shopList[0].level : 1;
	var cost = 80 + (shopLevel - 1) * 80;
	if (shopList.length > 0 && money >= cost) {
		shopList[0].level++;
		money -= cost;
		updateMoneyText();
		updateLevelPanel();
	}
};
upgradeButtons[3].down = function () {
	// Miner
	var minerLevel = minerList.length > 0 ? minerList[0].level : 1;
	var cost = 60 + (minerLevel - 1) * 60;
	if (minerList.length > 0 && money >= cost) {
		minerList[0].level++;
		money -= cost;
		updateMoneyText();
		updateLevelPanel();
	}
};
upgradeButtons[4].down = function () {
	// Carrier
	var carrierLevel = carrierList.length > 0 ? carrierList[0].level : 1;
	var cost = 60 + (carrierLevel - 1) * 60;
	if (carrierList.length > 0 && money >= cost) {
		carrierList[0].level++;
		money -= cost;
		updateMoneyText();
		updateLevelPanel();
	}
};
// No background, no music, no sound, as per requirements
// End of MVP code;

===================================================================
--- original.js
+++ change.js
@@ -231,9 +231,11 @@
 // Add level to Miner (worker)
 var Miner = Container.expand(function () {
 	var self = Container.call(this);
 	// Miner visual
-	var minerSprite = self.attachAsset('miner', {
+	var minerImages = ['miner1', 'miner2', 'miner3', 'miner4', 'miner5'];
+	var minerImgId = minerImages[Math.floor(Math.random() * minerImages.length)];
+	var minerSprite = self.attachAsset(minerImgId, {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.level = 1; // Worker level