===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,435 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Bullet = Container.expand(function (damage, speed, isEnemy) {
+	var self = Container.call(this);
+	self.damage = damage || 25;
+	self.speed = speed || 8;
+	self.isEnemy = isEnemy || false;
+	var bulletGraphics = self.attachAsset(isEnemy ? 'enemyBullet' : 'bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.direction = {
+		x: 0,
+		y: 0
+	};
+	self.update = function () {
+		self.x += self.direction.x * self.speed;
+		self.y += self.direction.y * self.speed;
+	};
+	return self;
+});
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 75;
+	self.maxHealth = 75;
+	self.speed = 2;
+	self.lastFired = 0;
+	self.fireRate = 60;
+	self.detectionRange = 300;
+	self.damage = 20;
+	self.update = function () {
+		var dx = player.x - self.x;
+		var dy = player.y - self.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		if (distance < self.detectionRange) {
+			// Move towards player
+			var moveX = dx / distance * self.speed;
+			var moveY = dy / distance * self.speed;
+			self.x += moveX;
+			self.y += moveY;
+			// Fire at player
+			if (LK.ticks - self.lastFired >= self.fireRate) {
+				var bullet = new Bullet(self.damage, 6, true);
+				bullet.x = self.x;
+				bullet.y = self.y;
+				bullet.direction.x = dx / distance;
+				bullet.direction.y = dy / distance;
+				enemyBullets.push(bullet);
+				game.addChild(bullet);
+				self.lastFired = LK.ticks;
+			}
+		}
+	};
+	return self;
+});
+var Item = Container.expand(function (type) {
+	var self = Container.call(this);
+	self.type = type;
+	var itemGraphics = self.attachAsset(type, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 100;
+	self.maxHealth = 100;
+	self.weapon = null;
+	self.speed = 4;
+	return self;
+});
+var Weapon = Container.expand(function (type) {
+	var self = Container.call(this);
+	self.type = type || 'pistol';
+	self.damage = 25;
+	self.fireRate = 15;
+	self.maxAmmo = 12;
+	self.reloadTime = 60;
+	if (self.type === 'rifle') {
+		self.damage = 35;
+		self.fireRate = 8;
+		self.maxAmmo = 30;
+		self.reloadTime = 90;
+	} else if (self.type === 'shotgun') {
+		self.damage = 60;
+		self.fireRate = 25;
+		self.maxAmmo = 8;
+		self.reloadTime = 120;
+	}
+	self.ammo = self.maxAmmo;
+	self.lastFired = 0;
+	self.reloading = false;
+	self.reloadStart = 0;
+	var weaponGraphics = self.attachAsset(self.type, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.canFire = function () {
+		return !self.reloading && self.ammo > 0 && LK.ticks - self.lastFired >= self.fireRate;
+	};
+	self.fire = function () {
+		if (self.canFire()) {
+			self.ammo--;
+			self.lastFired = LK.ticks;
+			LK.getSound('shoot').play();
+			return true;
+		}
+		return false;
+	};
+	self.reload = function () {
+		if (!self.reloading && self.ammo < self.maxAmmo) {
+			self.reloading = true;
+			self.reloadStart = LK.ticks;
+			LK.getSound('reload').play();
+		}
+	};
+	self.update = function () {
+		if (self.reloading && LK.ticks - self.reloadStart >= self.reloadTime) {
+			self.ammo = self.maxAmmo;
+			self.reloading = false;
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2d5a3d
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var player;
+var enemies = [];
+var playerBullets = [];
+var enemyBullets = [];
+var items = [];
+var dragNode = null;
+var shootTarget = null;
+var zoneRadius = 1200;
+var zoneCenter = {
+	x: 1024,
+	y: 1366
+};
+var zoneShrinkRate = 0.5;
+var waveNumber = 1;
+var enemiesKilled = 0;
+var nextWaveTimer = 0;
+// Create UI elements
+var healthBar = LK.getAsset('healthPack', {
+	anchorX: 0,
+	anchorY: 0,
+	scaleX: 6,
+	scaleY: 1
+});
+LK.gui.topLeft.addChild(healthBar);
+healthBar.x = 120;
+healthBar.y = 20;
+var healthText = new Text2('100/100', {
+	size: 40,
+	fill: 0xFFFFFF
+});
+healthText.anchor.set(0, 0);
+LK.gui.topLeft.addChild(healthText);
+healthText.x = 120;
+healthText.y = 60;
+var ammoText = new Text2('12/12', {
+	size: 40,
+	fill: 0xFFFFFF
+});
+ammoText.anchor.set(0, 0);
+LK.gui.topLeft.addChild(ammoText);
+ammoText.x = 120;
+ammoText.y = 100;
+var scoreText = new Text2('Kills: 0', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreText);
+var waveText = new Text2('Wave: 1', {
+	size: 45,
+	fill: 0xFFFFFF
+});
+waveText.anchor.set(1, 0);
+LK.gui.topRight.addChild(waveText);
+waveText.x = -20;
+waveText.y = 20;
+// Initialize player
+player = game.addChild(new Player());
+player.x = 1024;
+player.y = 1366;
+// Give player starting weapon
+var startWeapon = new Weapon('pistol');
+startWeapon.x = player.x;
+startWeapon.y = player.y - 50;
+player.weapon = startWeapon;
+game.addChild(startWeapon);
+// Spawn initial enemies
+function spawnWave() {
+	var enemiesToSpawn = Math.min(3 + waveNumber, 8);
+	for (var i = 0; i < enemiesToSpawn; i++) {
+		var enemy = new Enemy();
+		var angle = Math.random() * Math.PI * 2;
+		var distance = 400 + Math.random() * 400;
+		enemy.x = player.x + Math.cos(angle) * distance;
+		enemy.y = player.y + Math.sin(angle) * distance;
+		// Keep enemies within bounds
+		enemy.x = Math.max(100, Math.min(1948, enemy.x));
+		enemy.y = Math.max(100, Math.min(2632, enemy.y));
+		enemies.push(enemy);
+		game.addChild(enemy);
+	}
+}
+// Spawn initial items
+function spawnItems() {
+	// Spawn weapons
+	for (var i = 0; i < 3; i++) {
+		var weaponTypes = ['pistol', 'rifle', 'shotgun'];
+		var weaponType = weaponTypes[Math.floor(Math.random() * weaponTypes.length)];
+		var weapon = new Item(weaponType);
+		weapon.x = Math.random() * 1800 + 124;
+		weapon.y = Math.random() * 2400 + 166;
+		items.push(weapon);
+		game.addChild(weapon);
+	}
+	// Spawn health packs
+	for (var i = 0; i < 4; i++) {
+		var health = new Item('healthPack');
+		health.x = Math.random() * 1800 + 124;
+		health.y = Math.random() * 2400 + 166;
+		items.push(health);
+		game.addChild(health);
+	}
+	// Spawn ammo boxes
+	for (var i = 0; i < 3; i++) {
+		var ammo = new Item('ammoBox');
+		ammo.x = Math.random() * 1800 + 124;
+		ammo.y = Math.random() * 2400 + 166;
+		items.push(ammo);
+		game.addChild(ammo);
+	}
+}
+spawnWave();
+spawnItems();
+// Event handlers
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		dragNode.x = x;
+		dragNode.y = y;
+		// Move weapon with player
+		if (player.weapon) {
+			player.weapon.x = player.x;
+			player.weapon.y = player.y;
+		}
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	var distanceToPlayer = Math.sqrt((x - player.x) * (x - player.x) + (y - player.y) * (y - player.y));
+	if (distanceToPlayer < 100) {
+		dragNode = player;
+		handleMove(x, y, obj);
+	} else {
+		// Shoot towards tap location
+		shootTarget = {
+			x: x,
+			y: y
+		};
+	}
+};
+game.up = function (x, y, obj) {
+	if (shootTarget && player.weapon && player.weapon.fire()) {
+		var dx = shootTarget.x - player.x;
+		var dy = shootTarget.y - player.y;
+		var distance = Math.sqrt(dx * dx + dy * dy);
+		var bullet = new Bullet(player.weapon.damage, 10, false);
+		bullet.x = player.x;
+		bullet.y = player.y;
+		bullet.direction.x = dx / distance;
+		bullet.direction.y = dy / distance;
+		playerBullets.push(bullet);
+		game.addChild(bullet);
+		// Auto reload if empty
+		if (player.weapon.ammo === 0) {
+			player.weapon.reload();
+		}
+	}
+	dragNode = null;
+	shootTarget = null;
+};
+// Main game loop
+game.update = function () {
+	// Update player weapon
+	if (player.weapon) {
+		player.weapon.update();
+	}
+	// Update enemies
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var enemy = enemies[i];
+		enemy.update();
+		// Check if enemy is outside zone
+		var distanceFromCenter = Math.sqrt((enemy.x - zoneCenter.x) * (enemy.x - zoneCenter.x) + (enemy.y - zoneCenter.y) * (enemy.y - zoneCenter.y));
+		if (distanceFromCenter > zoneRadius) {
+			enemy.health -= 2;
+			LK.effects.flashObject(enemy, 0xff0000, 100);
+		}
+	}
+	// Update player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var bullet = playerBullets[i];
+		bullet.update();
+		// Check bounds
+		if (bullet.x < 0 || bullet.x > 2048 || bullet.y < 0 || bullet.y > 2732) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check enemy collisions
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var enemy = enemies[j];
+			if (bullet.intersects(enemy)) {
+				enemy.health -= bullet.damage;
+				LK.effects.flashObject(enemy, 0xff0000, 200);
+				LK.getSound('hit').play();
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				if (enemy.health <= 0) {
+					enemy.destroy();
+					enemies.splice(j, 1);
+					enemiesKilled++;
+					LK.setScore(enemiesKilled);
+					scoreText.setText('Kills: ' + enemiesKilled);
+				}
+				break;
+			}
+		}
+	}
+	// Update enemy bullets
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var bullet = enemyBullets[i];
+		bullet.update();
+		// Check bounds
+		if (bullet.x < 0 || bullet.x > 2048 || bullet.y < 0 || bullet.y > 2732) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check player collision
+		if (bullet.intersects(player)) {
+			player.health -= bullet.damage;
+			LK.effects.flashObject(player, 0xff0000, 300);
+			LK.getSound('hit').play();
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			if (player.health <= 0) {
+				LK.showGameOver();
+				return;
+			}
+		}
+	}
+	// Check item pickups
+	for (var i = items.length - 1; i >= 0; i--) {
+		var item = items[i];
+		var distance = Math.sqrt((player.x - item.x) * (player.x - item.x) + (player.y - item.y) * (player.y - item.y));
+		if (distance < 60) {
+			if (item.type === 'healthPack') {
+				player.health = Math.min(player.maxHealth, player.health + 30);
+				LK.getSound('pickup').play();
+			} else if (item.type === 'ammoBox' && player.weapon) {
+				player.weapon.ammo = player.weapon.maxAmmo;
+				LK.getSound('pickup').play();
+			} else if (item.type === 'pistol' || item.type === 'rifle' || item.type === 'shotgun') {
+				if (player.weapon) {
+					player.weapon.destroy();
+				}
+				player.weapon = new Weapon(item.type);
+				player.weapon.x = player.x;
+				player.weapon.y = player.y;
+				game.addChild(player.weapon);
+				LK.getSound('pickup').play();
+			}
+			item.destroy();
+			items.splice(i, 1);
+		}
+	}
+	// Check zone damage for player
+	var playerDistanceFromCenter = Math.sqrt((player.x - zoneCenter.x) * (player.x - zoneCenter.x) + (player.y - zoneCenter.y) * (player.y - zoneCenter.y));
+	if (playerDistanceFromCenter > zoneRadius) {
+		player.health -= 1;
+		LK.effects.flashScreen(0xff0000, 100);
+	}
+	// Shrink zone
+	if (LK.ticks % 180 === 0) {
+		zoneRadius = Math.max(200, zoneRadius - zoneShrinkRate);
+	}
+	// Spawn new wave when all enemies are dead
+	if (enemies.length === 0) {
+		nextWaveTimer++;
+		if (nextWaveTimer >= 120) {
+			waveNumber++;
+			spawnWave();
+			spawnItems();
+			nextWaveTimer = 0;
+			waveText.setText('Wave: ' + waveNumber);
+		}
+	}
+	// Update UI
+	healthText.setText(Math.max(0, player.health) + '/' + player.maxHealth);
+	if (player.weapon) {
+		ammoText.setText(player.weapon.ammo + '/' + player.weapon.maxAmmo + (player.weapon.reloading ? ' (Reloading...)' : ''));
+	}
+	// Update health bar scale
+	var healthPercent = Math.max(0, player.health) / player.maxHealth;
+	healthBar.scaleX = 6 * healthPercent;
+};
\ No newline at end of file