===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,375 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Projectile = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('projectile', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.target = null;
+	self.damage = 20;
+	self.update = function () {
+		if (!self.target || self.target.destroyed) {
+			self.destroy();
+			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 < 20) {
+			self.target.takeDamage(self.damage);
+			self.destroy();
+		} else {
+			self.x += dx / distance * self.speed;
+			self.y += dy / distance * self.speed;
+		}
+	};
+	self.destroy = function () {
+		for (var i = projectiles.length - 1; i >= 0; i--) {
+			if (projectiles[i] === self) {
+				projectiles.splice(i, 1);
+				break;
+			}
+		}
+		if (self.parent) {
+			self.parent.removeChild(self);
+		}
+	};
+	return self;
+});
+var Spirit = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('spirit', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 50;
+	self.maxHealth = 50;
+	self.speed = 1;
+	self.gold = 10;
+	self.targetX = villageX;
+	self.targetY = villageY;
+	self.update = function () {
+		var dx = self.targetX - self.x;
+		var dy = self.targetY - self.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance > 5) {
+			self.x += dx / distance * self.speed;
+			self.y += dy / distance * self.speed;
+		} else {
+			self.reachVillage();
+		}
+	};
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.getSound('spirit_hit').play();
+		if (self.health <= 0) {
+			self.die();
+		}
+	};
+	self.die = function () {
+		gold += self.gold;
+		goldText.setText('Gold: ' + gold);
+		LK.getSound('spirit_death').play();
+		for (var i = spirits.length - 1; i >= 0; i--) {
+			if (spirits[i] === self) {
+				spirits.splice(i, 1);
+				break;
+			}
+		}
+		self.destroy();
+	};
+	self.reachVillage = function () {
+		villageHealth -= 10;
+		healthText.setText('Health: ' + villageHealth);
+		if (villageHealth <= 0) {
+			LK.showGameOver();
+		}
+		for (var i = spirits.length - 1; i >= 0; i--) {
+			if (spirits[i] === self) {
+				spirits.splice(i, 1);
+				break;
+			}
+		}
+		self.destroy();
+	};
+	return self;
+});
+var Tower = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('tower', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.range = 150;
+	self.damage = 20;
+	self.fireRate = 60; // frames between shots
+	self.lastShot = 0;
+	self.level = 1;
+	self.update = function () {
+		self.lastShot++;
+		if (self.lastShot >= self.fireRate) {
+			var target = self.findTarget();
+			if (target) {
+				self.shoot(target);
+				self.lastShot = 0;
+			}
+		}
+	};
+	self.findTarget = function () {
+		var closestSpirit = null;
+		var closestDistance = self.range;
+		for (var i = 0; i < spirits.length; i++) {
+			var spirit = spirits[i];
+			var dx = spirit.x - self.x;
+			var dy = spirit.y - self.y;
+			var distance = Math.sqrt(dx * dx + dy * dy);
+			if (distance <= self.range && distance < closestDistance) {
+				closestDistance = distance;
+				closestSpirit = spirit;
+			}
+		}
+		return closestSpirit;
+	};
+	self.shoot = function (target) {
+		var projectile = new Projectile();
+		projectile.x = self.x;
+		projectile.y = self.y;
+		projectile.target = target;
+		projectile.damage = self.damage;
+		projectiles.push(projectile);
+		gameWorld.addChild(projectile);
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2F4F2F
+});
+
+/**** 
+* Game Code
+****/ 
+var gameWorld = new Container();
+game.addChild(gameWorld);
+var gameWorldX = 0;
+var gameWorldY = 0;
+var isDragging = false;
+var lastDragX = 0;
+var lastDragY = 0;
+var villageX = 0;
+var villageY = 0;
+var villageHealth = 100;
+var gold = 100;
+var wave = 1;
+var spiritsToSpawn = 5;
+var spiritsSpawned = 0;
+var spawnTimer = 0;
+var towers = [];
+var spirits = [];
+var projectiles = [];
+var placementMode = false;
+var placementPreview = null;
+// Create village at center
+var village = gameWorld.attachAsset('village', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: villageX,
+	y: villageY
+});
+// UI Elements
+var goldText = new Text2('Gold: ' + gold, {
+	size: 60,
+	fill: 0xFFD700
+});
+goldText.anchor.set(0, 0);
+LK.gui.topRight.addChild(goldText);
+var healthText = new Text2('Health: ' + villageHealth, {
+	size: 60,
+	fill: 0xFF0000
+});
+healthText.anchor.set(0, 0);
+healthText.y = 70;
+LK.gui.topRight.addChild(healthText);
+var waveText = new Text2('Wave: ' + wave, {
+	size: 60,
+	fill: 0xFFFFFF
+});
+waveText.anchor.set(0.5, 0);
+LK.gui.top.addChild(waveText);
+var buildButton = new Text2('Build Tower (50g)', {
+	size: 50,
+	fill: 0x00FF00
+});
+buildButton.anchor.set(0.5, 1);
+LK.gui.bottom.addChild(buildButton);
+function canPlaceTower(x, y) {
+	// Check distance from village
+	var dx = x - villageX;
+	var dy = y - villageY;
+	var distanceFromVillage = Math.sqrt(dx * dx + dy * dy);
+	if (distanceFromVillage < 150) {
+		return false;
+	}
+	// Check distance from other towers
+	for (var i = 0; i < towers.length; i++) {
+		var tower = towers[i];
+		var tdx = x - tower.x;
+		var tdy = y - tower.y;
+		var distanceFromTower = Math.sqrt(tdx * tdx + tdy * tdy);
+		if (distanceFromTower < 80) {
+			return false;
+		}
+	}
+	return true;
+}
+function spawnSpirit() {
+	if (spiritsSpawned >= spiritsToSpawn) {
+		return;
+	}
+	var spirit = new Spirit();
+	// Spawn from random edge
+	var edge = Math.floor(Math.random() * 4);
+	var mapSize = 1500;
+	switch (edge) {
+		case 0:
+			// Top
+			spirit.x = Math.random() * mapSize - mapSize / 2;
+			spirit.y = -mapSize / 2;
+			break;
+		case 1:
+			// Right
+			spirit.x = mapSize / 2;
+			spirit.y = Math.random() * mapSize - mapSize / 2;
+			break;
+		case 2:
+			// Bottom
+			spirit.x = Math.random() * mapSize - mapSize / 2;
+			spirit.y = mapSize / 2;
+			break;
+		case 3:
+			// Left
+			spirit.x = -mapSize / 2;
+			spirit.y = Math.random() * mapSize - mapSize / 2;
+			break;
+	}
+	spirits.push(spirit);
+	gameWorld.addChild(spirit);
+	spiritsSpawned++;
+}
+function nextWave() {
+	if (spirits.length === 0 && spiritsSpawned >= spiritsToSpawn) {
+		wave++;
+		spiritsToSpawn = 5 + wave * 2;
+		spiritsSpawned = 0;
+		spawnTimer = 0;
+		waveText.setText('Wave: ' + wave);
+		// Bonus gold for completing wave
+		gold += 20;
+		goldText.setText('Gold: ' + gold);
+	}
+}
+game.down = function (x, y, obj) {
+	var localPos = gameWorld.toLocal(obj.parent.toGlobal(obj.position));
+	if (placementMode) {
+		if (canPlaceTower(localPos.x, localPos.y) && gold >= 50) {
+			var tower = new Tower();
+			tower.x = localPos.x;
+			tower.y = localPos.y;
+			towers.push(tower);
+			gameWorld.addChild(tower);
+			gold -= 50;
+			goldText.setText('Gold: ' + gold);
+			LK.getSound('place_tower').play();
+			placementMode = false;
+			if (placementPreview) {
+				placementPreview.destroy();
+				placementPreview = null;
+			}
+		}
+	} else {
+		isDragging = true;
+		lastDragX = x;
+		lastDragY = y;
+	}
+};
+game.move = function (x, y, obj) {
+	var localPos = gameWorld.toLocal(obj.parent.toGlobal(obj.position));
+	if (placementMode) {
+		if (placementPreview) {
+			placementPreview.destroy();
+		}
+		if (canPlaceTower(localPos.x, localPos.y)) {
+			placementPreview = gameWorld.attachAsset('validPlacement', {
+				anchorX: 0.5,
+				anchorY: 0.5,
+				x: localPos.x,
+				y: localPos.y,
+				alpha: 0.5
+			});
+		} else {
+			placementPreview = gameWorld.attachAsset('invalidPlacement', {
+				anchorX: 0.5,
+				anchorY: 0.5,
+				x: localPos.x,
+				y: localPos.y,
+				alpha: 0.5
+			});
+		}
+	} else if (isDragging) {
+		var deltaX = x - lastDragX;
+		var deltaY = y - lastDragY;
+		gameWorldX += deltaX;
+		gameWorldY += deltaY;
+		// Limit scrolling
+		gameWorldX = Math.max(-1000, Math.min(1000, gameWorldX));
+		gameWorldY = Math.max(-1000, Math.min(1000, gameWorldY));
+		gameWorld.x = gameWorldX;
+		gameWorld.y = gameWorldY;
+		lastDragX = x;
+		lastDragY = y;
+	}
+};
+game.up = function (x, y, obj) {
+	isDragging = false;
+};
+buildButton.down = function (x, y, obj) {
+	if (gold >= 50) {
+		placementMode = !placementMode;
+		if (!placementMode && placementPreview) {
+			placementPreview.destroy();
+			placementPreview = null;
+		}
+	}
+};
+game.update = function () {
+	// Spawn spirits
+	spawnTimer++;
+	if (spawnTimer >= 120) {
+		// Spawn every 2 seconds
+		spawnSpirit();
+		spawnTimer = 0;
+	}
+	// Check for next wave
+	nextWave();
+	// Update all game objects
+	for (var i = 0; i < towers.length; i++) {
+		towers[i].update();
+	}
+	for (var i = 0; i < spirits.length; i++) {
+		spirits[i].update();
+	}
+	for (var i = 0; i < projectiles.length; i++) {
+		projectiles[i].update();
+	}
+};
\ No newline at end of file