/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.value = 1;
	self.collected = false;
	return self;
});
var CombatUnit = Container.expand(function (team, unitType) {
	var self = Container.call(this);
	var assetName = team === 'player' ? unitType : 'ai' + unitType.charAt(0).toUpperCase() + unitType.slice(1);
	var graphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.team = team;
	self.unitType = unitType;
	self.speed = unitType === 'dragon' ? 3 : unitType === 'wizard' ? 1.5 : 2;
	self.damage = unitType === 'dragon' ? 25 : unitType === 'wizard' ? 15 : 10;
	self.health = unitType === 'dragon' ? 60 : unitType === 'wizard' ? 30 : 40;
	self.maxHealth = self.health;
	self.attackRange = unitType === 'wizard' ? 100 : 50;
	self.attackCooldown = 0;
	self.target = null;
	self.update = function () {
		if (self.attackCooldown > 0) {
			self.attackCooldown--;
		}
		if (!self.target) {
			self.findNearestEnemyTower();
		} else {
			self.moveToTarget();
		}
	};
	self.findNearestEnemyTower = function () {
		var enemyTowers = self.team === 'player' ? aiTowers : playerTowers;
		var nearestTower = null;
		var nearestDistance = Infinity;
		for (var i = 0; i < enemyTowers.length; i++) {
			var tower = enemyTowers[i];
			var distance = Math.sqrt(Math.pow(tower.x - self.x, 2) + Math.pow(tower.y - self.y, 2));
			if (distance < nearestDistance) {
				nearestDistance = distance;
				nearestTower = tower;
			}
		}
		self.target = nearestTower;
	};
	self.moveToTarget = function () {
		if (!self.target) {
			return;
		}
		var dx = self.target.x - self.x;
		var dy = self.target.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < self.attackRange) {
			self.attackTarget();
		} else {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
	self.attackTarget = function () {
		if (self.attackCooldown <= 0 && self.target) {
			self.target.health -= self.damage;
			self.attackCooldown = 60;
			LK.getSound('attack').play();
			if (self.target.health <= 0) {
				self.destroyTower();
			}
		}
	};
	self.destroyTower = function () {
		var towers = self.team === 'player' ? aiTowers : playerTowers;
		var index = towers.indexOf(self.target);
		if (index > -1) {
			towers.splice(index, 1);
			self.target.destroy();
			LK.getSound('towerDestroyed').play();
			self.target = null;
		}
	};
	return self;
});
var Tower = Container.expand(function (team) {
	var self = Container.call(this);
	var assetName = team === 'player' ? 'playerTower' : 'aiTower';
	var graphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.team = team;
	self.health = 100;
	self.maxHealth = 100;
	return self;
});
var Worker = Container.expand(function (team) {
	var self = Container.call(this);
	var assetName = team === 'player' ? 'worker' : 'aiWorker';
	var graphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.team = team;
	self.speed = 2;
	self.target = null;
	self.collectRange = 40;
	self.update = function () {
		if (!self.target) {
			self.findNearestCoin();
		} else {
			self.moveToTarget();
		}
	};
	self.findNearestCoin = function () {
		var nearestCoin = null;
		var nearestDistance = Infinity;
		for (var i = 0; i < coins.length; i++) {
			var coin = coins[i];
			if (!coin.collected) {
				var distance = Math.sqrt(Math.pow(coin.x - self.x, 2) + Math.pow(coin.y - self.y, 2));
				if (distance < nearestDistance) {
					nearestDistance = distance;
					nearestCoin = coin;
				}
			}
		}
		self.target = nearestCoin;
	};
	self.moveToTarget = function () {
		if (!self.target || self.target.collected) {
			self.target = null;
			return;
		}
		var dx = self.target.x - self.x;
		var dy = self.target.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < self.collectRange) {
			self.collectCoin();
		} else {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
	self.collectCoin = function () {
		if (self.target && !self.target.collected) {
			self.target.collected = true;
			if (self.team === 'player') {
				playerCoins += self.target.value;
			} else {
				aiCoins += self.target.value;
			}
			LK.getSound('coinCollect').play();
			self.target = null;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x228B22
});

/**** 
* Game Code
****/ 
var playerCoins = 0;
var aiCoins = 0;
var playerTowers = [];
var aiTowers = [];
var coins = [];
var playerUnits = [];
var aiUnits = [];
var coinSpawnTimer = 0;
var aiActionTimer = 0;
// UI Elements
var coinDisplay = new Text2('Coins: 0', {
	size: 40,
	fill: '#ffffff'
});
coinDisplay.anchor.set(0, 0);
LK.gui.topLeft.addChild(coinDisplay);
var workerButton = new Text2('Worker (5)', {
	size: 30,
	fill: '#ffffff'
});
workerButton.anchor.set(0.5, 0.5);
workerButton.x = -300;
workerButton.y = -50;
var warriorButton = new Text2('Warrior (7)', {
	size: 30,
	fill: '#ffffff'
});
warriorButton.anchor.set(0.5, 0.5);
warriorButton.x = -100;
warriorButton.y = -50;
var wizardButton = new Text2('Wizard (10)', {
	size: 30,
	fill: '#ffffff'
});
wizardButton.anchor.set(0.5, 0.5);
wizardButton.x = 100;
wizardButton.y = -50;
var dragonButton = new Text2('Dragon (20)', {
	size: 30,
	fill: '#ffffff'
});
dragonButton.anchor.set(0.5, 0.5);
dragonButton.x = 300;
dragonButton.y = -50;
// Add black backgrounds behind recruitment buttons and unit images
var workerBackground = LK.getAsset('blackBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 1.5,
	scaleY: 2.0
});
workerBackground.x = -300;
workerBackground.y = -85;
workerBackground.tint = 0x000000;
workerBackground.alpha = 0.5;
LK.gui.bottom.addChild(workerBackground);
var warriorBackground = LK.getAsset('blackBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 1.5,
	scaleY: 2.0
});
warriorBackground.x = -100;
warriorBackground.y = -85;
warriorBackground.tint = 0x000000;
warriorBackground.alpha = 0.5;
LK.gui.bottom.addChild(warriorBackground);
var wizardBackground = LK.getAsset('blackBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 1.5,
	scaleY: 2.0
});
wizardBackground.x = 100;
wizardBackground.y = -85;
wizardBackground.tint = 0x000000;
wizardBackground.alpha = 0.5;
LK.gui.bottom.addChild(wizardBackground);
var dragonBackground = LK.getAsset('blackBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 1.5,
	scaleY: 2.0
});
dragonBackground.x = 300;
dragonBackground.y = -85;
dragonBackground.tint = 0x000000;
dragonBackground.alpha = 0.5;
LK.gui.bottom.addChild(dragonBackground);
// Add unit images above recruitment buttons
var workerImage = LK.getAsset('worker', {
	anchorX: 0.5,
	anchorY: 0.5
});
workerImage.x = -300;
workerImage.y = -120;
LK.gui.bottom.addChild(workerImage);
var warriorImage = LK.getAsset('warrior', {
	anchorX: 0.5,
	anchorY: 0.5
});
warriorImage.x = -100;
warriorImage.y = -120;
LK.gui.bottom.addChild(warriorImage);
var wizardImage = LK.getAsset('wizard', {
	anchorX: 0.5,
	anchorY: 0.5
});
wizardImage.x = 100;
wizardImage.y = -120;
LK.gui.bottom.addChild(wizardImage);
var dragonImage = LK.getAsset('dragon', {
	anchorX: 0.5,
	anchorY: 0.5
});
dragonImage.x = 300;
dragonImage.y = -120;
LK.gui.bottom.addChild(dragonImage);
// Add texts after backgrounds so they appear on top
LK.gui.bottom.addChild(workerButton);
LK.gui.bottom.addChild(warriorButton);
LK.gui.bottom.addChild(wizardButton);
LK.gui.bottom.addChild(dragonButton);
// Initialize towers
function initializeTowers() {
	// Player tower
	var playerTower = new Tower('player');
	playerTower.x = 1024;
	playerTower.y = 2200;
	playerTowers.push(playerTower);
	game.addChild(playerTower);
	// AI tower
	var aiTower = new Tower('ai');
	aiTower.x = 1024;
	aiTower.y = 300;
	aiTowers.push(aiTower);
	game.addChild(aiTower);
}
;
function spawnCoin() {
	var coin = new Coin();
	coin.x = Math.random() * 1800 + 124;
	coin.y = Math.random() * 2000 + 400;
	coins.push(coin);
	game.addChild(coin);
}
function spawnUnit(team, unitType) {
	var unit;
	var cost = unitType === 'worker' ? 5 : unitType === 'warrior' ? 7 : unitType === 'wizard' ? 10 : 20;
	if (team === 'player' && playerCoins >= cost) {
		playerCoins -= cost;
		if (unitType === 'worker') {
			unit = new Worker('player');
		} else {
			unit = new CombatUnit('player', unitType);
		}
		unit.x = Math.random() * 400 + 800;
		unit.y = 2400;
		playerUnits.push(unit);
		game.addChild(unit);
		LK.getSound('unitSpawn').play();
	} else if (team === 'ai' && aiCoins >= cost) {
		aiCoins -= cost;
		if (unitType === 'worker') {
			unit = new Worker('ai');
		} else {
			unit = new CombatUnit('ai', unitType);
		}
		unit.x = Math.random() * 400 + 800;
		unit.y = 500;
		aiUnits.push(unit);
		game.addChild(unit);
	}
}
function aiLogic() {
	if (aiActionTimer <= 0) {
		if (aiCoins >= 20 && Math.random() < 0.1) {
			spawnUnit('ai', 'dragon');
		} else if (aiCoins >= 10 && Math.random() < 0.2) {
			spawnUnit('ai', 'wizard');
		} else if (aiCoins >= 7 && Math.random() < 0.3) {
			spawnUnit('ai', 'warrior');
		} else if (aiCoins >= 5 && Math.random() < 0.4) {
			spawnUnit('ai', 'worker');
		}
		aiActionTimer = 120;
	}
	aiActionTimer--;
}
function checkGameEnd() {
	if (playerTowers.length === 0) {
		LK.showGameOver();
	} else if (aiTowers.length === 0) {
		LK.showYouWin();
	}
}
function cleanupCollectedCoins() {
	for (var i = coins.length - 1; i >= 0; i--) {
		if (coins[i].collected) {
			coins[i].destroy();
			coins.splice(i, 1);
		}
	}
}
// Button event handlers
workerButton.down = function () {
	spawnUnit('player', 'worker');
};
warriorButton.down = function () {
	spawnUnit('player', 'warrior');
};
wizardButton.down = function () {
	spawnUnit('player', 'wizard');
};
dragonButton.down = function () {
	spawnUnit('player', 'dragon');
};
// Initialize game
initializeTowers();
// Spawn initial workers for both teams
var playerWorker = new Worker('player');
playerWorker.x = 1024;
playerWorker.y = 2300;
playerUnits.push(playerWorker);
game.addChild(playerWorker);
var aiWorker = new Worker('ai');
aiWorker.x = 1024;
aiWorker.y = 600;
aiUnits.push(aiWorker);
game.addChild(aiWorker);
// Main game loop
game.update = function () {
	// Update coin display
	coinDisplay.setText('Coins: ' + playerCoins);
	// Spawn coins
	coinSpawnTimer++;
	if (coinSpawnTimer >= 180) {
		spawnCoin();
		coinSpawnTimer = 0;
	}
	// AI logic
	aiLogic();
	// Clean up collected coins
	cleanupCollectedCoins();
	// Check game end conditions
	checkGameEnd();
};

===================================================================
--- original.js
+++ change.js
@@ -225,9 +225,9 @@
 });
 workerBackground.x = -300;
 workerBackground.y = -85;
 workerBackground.tint = 0x000000;
-workerBackground.alpha = 1.0;
+workerBackground.alpha = 0.5;
 LK.gui.bottom.addChild(workerBackground);
 var warriorBackground = LK.getAsset('blackBackground', {
 	anchorX: 0.5,
 	anchorY: 0.5,
@@ -236,9 +236,9 @@
 });
 warriorBackground.x = -100;
 warriorBackground.y = -85;
 warriorBackground.tint = 0x000000;
-warriorBackground.alpha = 1.0;
+warriorBackground.alpha = 0.5;
 LK.gui.bottom.addChild(warriorBackground);
 var wizardBackground = LK.getAsset('blackBackground', {
 	anchorX: 0.5,
 	anchorY: 0.5,
@@ -247,9 +247,9 @@
 });
 wizardBackground.x = 100;
 wizardBackground.y = -85;
 wizardBackground.tint = 0x000000;
-wizardBackground.alpha = 1.0;
+wizardBackground.alpha = 0.5;
 LK.gui.bottom.addChild(wizardBackground);
 var dragonBackground = LK.getAsset('blackBackground', {
 	anchorX: 0.5,
 	anchorY: 0.5,
@@ -258,9 +258,9 @@
 });
 dragonBackground.x = 300;
 dragonBackground.y = -85;
 dragonBackground.tint = 0x000000;
-dragonBackground.alpha = 1.0;
+dragonBackground.alpha = 0.5;
 LK.gui.bottom.addChild(dragonBackground);
 // Add unit images above recruitment buttons
 var workerImage = LK.getAsset('worker', {
 	anchorX: 0.5,