===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,377 @@
-/****
+/**** 
+* Classes
+****/ 
+var AttackUnit = Container.expand(function () {
+	var self = Container.call(this);
+	var unitGraphics = self.attachAsset('attackUnit', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 100;
+	self.maxHealth = 100;
+	self.speed = 2;
+	self.damage = 25;
+	self.range = 150;
+	self.shootCooldown = 0;
+	self.target = null;
+	self.lastX = 0;
+	self.lastY = 0;
+	self.update = function () {
+		self.lastX = self.x;
+		self.lastY = self.y;
+		// Move towards enemy base
+		if (!self.target || !self.target.parent) {
+			self.x += self.speed;
+		}
+		// Find target
+		if (!self.target && enemyTowers.length > 0) {
+			var closestTower = null;
+			var closestDistance = 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 < closestDistance) {
+					closestDistance = distance;
+					closestTower = tower;
+				}
+			}
+			if (closestTower && closestDistance <= self.range) {
+				self.target = closestTower;
+			}
+		}
+		// Check if can target base
+		if (!self.target && enemyBase) {
+			var distanceToBase = Math.sqrt(Math.pow(enemyBase.x - self.x, 2) + Math.pow(enemyBase.y - self.y, 2));
+			if (distanceToBase <= self.range) {
+				self.target = enemyBase;
+			}
+		}
+		// Shoot at target
+		if (self.target && self.shootCooldown <= 0) {
+			var bullet = new UnitBullet();
+			bullet.x = self.x;
+			bullet.y = self.y;
+			bullet.target = self.target;
+			bullet.damage = self.damage;
+			unitBullets.push(bullet);
+			game.addChild(bullet);
+			LK.getSound('shoot').play();
+			self.shootCooldown = 60; // 1 second at 60fps
+		}
+		if (self.shootCooldown > 0) {
+			self.shootCooldown--;
+		}
+	};
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		if (self.health <= 0) {
+			return true; // Unit is dead
+		}
+		return false;
+	};
+	return self;
+});
+var EnemyBase = Container.expand(function () {
+	var self = Container.call(this);
+	var baseGraphics = self.attachAsset('enemyBase', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 500;
+	self.maxHealth = 500;
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xff0000, 300);
+		if (self.health <= 0) {
+			return true; // Base destroyed - player wins!
+		}
+		return false;
+	};
+	return self;
+});
+// Game arrays to track entities
+var EnemyTower = Container.expand(function () {
+	var self = Container.call(this);
+	var towerGraphics = self.attachAsset('enemyTower', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 150;
+	self.maxHealth = 150;
+	self.range = 200;
+	self.damage = 30;
+	self.shootCooldown = 0;
+	self.target = null;
+	self.update = function () {
+		// Find target
+		if (!self.target || !self.target.parent) {
+			self.target = null;
+			var closestUnit = null;
+			var closestDistance = Infinity;
+			for (var i = 0; i < playerUnits.length; i++) {
+				var unit = playerUnits[i];
+				var distance = Math.sqrt(Math.pow(unit.x - self.x, 2) + Math.pow(unit.y - self.y, 2));
+				if (distance < closestDistance && distance <= self.range) {
+					closestDistance = distance;
+					closestUnit = unit;
+				}
+			}
+			self.target = closestUnit;
+		}
+		// Shoot at target
+		if (self.target && self.shootCooldown <= 0) {
+			var bullet = new TowerBullet();
+			bullet.x = self.x;
+			bullet.y = self.y;
+			bullet.target = self.target;
+			bullet.damage = self.damage;
+			towerBullets.push(bullet);
+			game.addChild(bullet);
+			LK.getSound('shoot').play();
+			self.shootCooldown = 90; // 1.5 seconds at 60fps
+		}
+		if (self.shootCooldown > 0) {
+			self.shootCooldown--;
+		}
+	};
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xff0000, 200);
+		if (self.health <= 0) {
+			return true; // Tower is destroyed
+		}
+		return false;
+	};
+	return self;
+});
+var TowerBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('towerBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 6;
+	self.target = null;
+	self.damage = 30;
+	self.update = function () {
+		if (!self.target || !self.target.parent) {
+			// Target destroyed, remove bullet
+			return;
+		}
+		// Move towards target
+		var dx = self.target.x - self.x;
+		var dy = self.target.y - self.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance < 10) {
+			// Hit target
+			if (self.target.takeDamage) {
+				self.target.takeDamage(self.damage);
+				LK.getSound('hit').play();
+			}
+			return; // Bullet will be removed
+		}
+		// Normalize and move
+		self.x += dx / distance * self.speed;
+		self.y += dy / distance * self.speed;
+	};
+	return self;
+});
+var UnitBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('unitBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.target = null;
+	self.damage = 25;
+	self.update = function () {
+		if (!self.target || !self.target.parent) {
+			// Target destroyed, remove bullet
+			return;
+		}
+		// Move towards target
+		var dx = self.target.x - self.x;
+		var dy = self.target.y - self.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance < 10) {
+			// Hit target
+			if (self.target.takeDamage) {
+				self.target.takeDamage(self.damage);
+				LK.getSound('hit').play();
+			}
+			return; // Bullet will be removed
+		}
+		// Normalize and move
+		self.x += dx / distance * self.speed;
+		self.y += dy / distance * self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2d5016
+});
+
+/**** 
+* Game Code
+****/ 
+// Game arrays to track entities
+// Initialize game assets
+var playerUnits = [];
+var enemyTowers = [];
+var unitBullets = [];
+var towerBullets = [];
+var enemyBase;
+// Game resources
+var coins = 150;
+var unitCost = 50;
+// UI Elements
+var coinsText = new Text2('Coins: ' + coins, {
+	size: 60,
+	fill: 0xFFFFFF
+});
+coinsText.anchor.set(0, 0);
+LK.gui.topRight.addChild(coinsText);
+var healthText = new Text2('Base Health: 500', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+healthText.anchor.set(0.5, 0);
+LK.gui.top.addChild(healthText);
+var spawnButton = new Text2('SPAWN UNIT (50 coins)', {
+	size: 50,
+	fill: 0x00FF00
+});
+spawnButton.anchor.set(0.5, 1);
+spawnButton.interactive = true;
+spawnButton.down = function () {
+	if (coins >= unitCost) {
+		spawnUnit();
+	}
+};
+LK.gui.bottom.addChild(spawnButton);
+// Create enemy base
+enemyBase = game.addChild(new EnemyBase());
+enemyBase.x = 1800;
+enemyBase.y = 2732 / 2;
+// Create enemy towers
+for (var i = 0; i < 4; i++) {
+	var tower = new EnemyTower();
+	tower.x = 1200 + i % 2 * 200;
+	tower.y = 800 + Math.floor(i / 2) * 400;
+	enemyTowers.push(tower);
+	game.addChild(tower);
+}
+function spawnUnit() {
+	if (coins >= unitCost) {
+		coins -= unitCost;
+		coinsText.setText('Coins: ' + coins);
+		var unit = new AttackUnit();
+		unit.x = 100;
+		unit.y = 500 + playerUnits.length % 5 * 150;
+		playerUnits.push(unit);
+		game.addChild(unit);
+		LK.getSound('unitSpawn').play();
+	}
+}
+// Coin generation timer
+var coinTimer = 0;
+// Touch controls for spawning units
+game.down = function (x, y, obj) {
+	if (coins >= unitCost) {
+		spawnUnit();
+	}
+};
+game.update = function () {
+	// Generate coins over time
+	coinTimer++;
+	if (coinTimer >= 120) {
+		// Every 2 seconds
+		coins += 25;
+		coinsText.setText('Coins: ' + coins);
+		coinTimer = 0;
+	}
+	// Update unit bullets
+	for (var i = unitBullets.length - 1; i >= 0; i--) {
+		var bullet = unitBullets[i];
+		if (!bullet.target || !bullet.target.parent) {
+			bullet.destroy();
+			unitBullets.splice(i, 1);
+			continue;
+		}
+		var dx = bullet.target.x - bullet.x;
+		var dy = bullet.target.y - bullet.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance < 15) {
+			// Hit target
+			var isDead = bullet.target.takeDamage(bullet.damage);
+			if (isDead) {
+				// Remove from appropriate array
+				if (bullet.target === enemyBase) {
+					// Player wins!
+					LK.effects.flashScreen(0x00ff00, 2000);
+					LK.showYouWin();
+					return;
+				} else {
+					// Remove tower
+					for (var j = 0; j < enemyTowers.length; j++) {
+						if (enemyTowers[j] === bullet.target) {
+							enemyTowers[j].destroy();
+							enemyTowers.splice(j, 1);
+							coins += 75; // Bonus for destroying tower
+							coinsText.setText('Coins: ' + coins);
+							break;
+						}
+					}
+				}
+			}
+			bullet.destroy();
+			unitBullets.splice(i, 1);
+		}
+	}
+	// Update tower bullets
+	for (var i = towerBullets.length - 1; i >= 0; i--) {
+		var bullet = towerBullets[i];
+		if (!bullet.target || !bullet.target.parent) {
+			bullet.destroy();
+			towerBullets.splice(i, 1);
+			continue;
+		}
+		var dx = bullet.target.x - bullet.x;
+		var dy = bullet.target.y - bullet.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance < 15) {
+			// Hit target
+			var isDead = bullet.target.takeDamage(bullet.damage);
+			if (isDead) {
+				// Remove unit
+				for (var j = 0; j < playerUnits.length; j++) {
+					if (playerUnits[j] === bullet.target) {
+						playerUnits[j].destroy();
+						playerUnits.splice(j, 1);
+						break;
+					}
+				}
+			}
+			bullet.destroy();
+			towerBullets.splice(i, 1);
+		}
+	}
+	// Check if player has no units and insufficient coins (lose condition)
+	if (playerUnits.length === 0 && coins < unitCost) {
+		// Check if there are still towers or base with health
+		if (enemyTowers.length > 0 || enemyBase && enemyBase.health > 0) {
+			LK.effects.flashScreen(0xff0000, 2000);
+			LK.showGameOver();
+			return;
+		}
+	}
+	// Update base health display
+	if (enemyBase) {
+		healthText.setText('Base Health: ' + enemyBase.health);
+	}
+};
\ No newline at end of file