===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,416 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Bullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 15;
+	self.damage = 10;
+	self.update = function () {
+		self.y -= self.speed;
+	};
+	return self;
+});
+var Enemy = Container.expand(function (type) {
+	var self = Container.call(this);
+	self.type = type || 'scout';
+	self.shootTimer = 0;
+	self.shootDelay = 60;
+	self.speed = 2;
+	self.health = 20;
+	self.maxHealth = 20;
+	var enemyGraphics;
+	if (self.type === 'scout') {
+		enemyGraphics = self.attachAsset('enemy_scout', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.health = 20;
+		self.maxHealth = 20;
+		self.speed = 3;
+		self.shootDelay = 90;
+	} else if (self.type === 'fighter') {
+		enemyGraphics = self.attachAsset('enemy_fighter', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.health = 40;
+		self.maxHealth = 40;
+		self.speed = 2;
+		self.shootDelay = 60;
+	} else if (self.type === 'boss') {
+		enemyGraphics = self.attachAsset('enemy_boss', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.health = 150;
+		self.maxHealth = 150;
+		self.speed = 1;
+		self.shootDelay = 30;
+	}
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		LK.effects.flashObject(self, 0xFF0000, 200);
+		LK.getSound('enemy_hit').play();
+		if (self.health <= 0) {
+			self.destroyed = true;
+			// Drop resources
+			for (var i = 0; i < Math.random() * 3 + 1; i++) {
+				var resourceType = ['crystal', 'metal', 'energy'][Math.floor(Math.random() * 3)];
+				var resource = new Resource(resourceType);
+				resource.x = self.x + (Math.random() - 0.5) * 50;
+				resource.y = self.y + (Math.random() - 0.5) * 50;
+				resources.push(resource);
+				game.addChild(resource);
+			}
+		}
+	};
+	self.update = function () {
+		if (self.destroyed) return;
+		self.y += self.speed;
+		// Simple AI movement
+		if (spaceship) {
+			var dx = spaceship.x - self.x;
+			self.x += dx * 0.005;
+		}
+		// Shooting
+		self.shootTimer++;
+		if (self.shootTimer >= self.shootDelay) {
+			self.shootTimer = 0;
+			var enemyBullet = new EnemyBullet();
+			enemyBullet.x = self.x;
+			enemyBullet.y = self.y + 20;
+			enemyBullets.push(enemyBullet);
+			game.addChild(enemyBullet);
+		}
+	};
+	return self;
+});
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	bulletGraphics.tint = 0xFF4444;
+	self.speed = 8;
+	self.damage = 15;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var Resource = Container.expand(function (type) {
+	var self = Container.call(this);
+	self.type = type || 'crystal';
+	self.value = 1;
+	var resourceGraphics;
+	if (self.type === 'crystal') {
+		resourceGraphics = self.attachAsset('crystal', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.value = 5;
+	} else if (self.type === 'metal') {
+		resourceGraphics = self.attachAsset('metal', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.value = 3;
+	} else if (self.type === 'energy') {
+		resourceGraphics = self.attachAsset('energy', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		self.value = 2;
+	}
+	self.floatSpeed = Math.random() * 2 + 1;
+	self.floatDirection = Math.random() * Math.PI * 2;
+	self.update = function () {
+		self.y += self.floatSpeed;
+		self.x += Math.sin(self.floatDirection + LK.ticks * 0.02) * 0.5;
+	};
+	return self;
+});
+var Spaceship = Container.expand(function () {
+	var self = Container.call(this);
+	var shipGraphics = self.attachAsset('spaceship', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 100;
+	self.maxHealth = 100;
+	self.shootTimer = 0;
+	self.shootDelay = 15;
+	self.weaponLevel = 1;
+	self.shieldLevel = 1;
+	self.speedLevel = 1;
+	self.takeDamage = function (damage) {
+		var actualDamage = Math.max(1, damage - self.shieldLevel);
+		self.health -= actualDamage;
+		LK.effects.flashObject(self, 0xFF0000, 300);
+		LK.getSound('player_hit').play();
+		if (self.health <= 0) {
+			LK.showGameOver();
+		}
+	};
+	self.shoot = function () {
+		if (self.shootTimer <= 0) {
+			var bullet = new Bullet();
+			bullet.x = self.x;
+			bullet.y = self.y - 50;
+			bullet.damage = 10 + (self.weaponLevel - 1) * 5;
+			bullets.push(bullet);
+			game.addChild(bullet);
+			LK.getSound('shoot').play();
+			self.shootTimer = Math.max(5, self.shootDelay - (self.weaponLevel - 1) * 3);
+		}
+	};
+	self.update = function () {
+		if (self.shootTimer > 0) {
+			self.shootTimer--;
+		}
+		// Auto-shoot when enemies are nearby
+		for (var i = 0; i < enemies.length; i++) {
+			var enemy = enemies[i];
+			if (!enemy.destroyed) {
+				var distance = Math.sqrt(Math.pow(enemy.x - self.x, 2) + Math.pow(enemy.y - self.y, 2));
+				if (distance < 400) {
+					self.shoot();
+					break;
+				}
+			}
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000011
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var spaceship;
+var bullets = [];
+var enemyBullets = [];
+var enemies = [];
+var resources = [];
+var waveTimer = 0;
+var waveNumber = 1;
+var resourceSpawnTimer = 0;
+var playerResources = {
+	crystal: 0,
+	metal: 0,
+	energy: 0
+};
+var dragNode = null;
+// UI Elements
+var scoreText = new Text2('Score: 0', {
+	size: 40,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0, 0);
+scoreText.x = 120;
+scoreText.y = 20;
+LK.gui.topLeft.addChild(scoreText);
+var healthText = new Text2('Health: 100', {
+	size: 40,
+	fill: 0xFF4444
+});
+healthText.anchor.set(0.5, 0);
+LK.gui.top.addChild(healthText);
+var waveText = new Text2('Wave: 1', {
+	size: 40,
+	fill: 0x44FF44
+});
+waveText.anchor.set(1, 0);
+waveText.x = -20;
+waveText.y = 20;
+LK.gui.topRight.addChild(waveText);
+var resourceText = new Text2('Crystals: 0 | Metal: 0 | Energy: 0', {
+	size: 35,
+	fill: 0xFFFF44
+});
+resourceText.anchor.set(0.5, 1);
+resourceText.y = -20;
+LK.gui.bottom.addChild(resourceText);
+// Initialize spaceship
+spaceship = game.addChild(new Spaceship());
+spaceship.x = 1024;
+spaceship.y = 2200;
+function spawnWave() {
+	var enemyCount = Math.min(3 + waveNumber, 8);
+	var bossChance = waveNumber % 5 === 0;
+	for (var i = 0; i < enemyCount; i++) {
+		var enemy;
+		if (bossChance && i === 0) {
+			enemy = new Enemy('boss');
+		} else if (waveNumber > 3 && Math.random() < 0.3) {
+			enemy = new Enemy('fighter');
+		} else {
+			enemy = new Enemy('scout');
+		}
+		enemy.x = Math.random() * 1800 + 124;
+		enemy.y = -100 - i * 80;
+		enemies.push(enemy);
+		game.addChild(enemy);
+	}
+	waveNumber++;
+	waveText.setText('Wave: ' + waveNumber);
+}
+function spawnResource() {
+	if (Math.random() < 0.7) {
+		var resourceType = ['crystal', 'metal', 'energy'][Math.floor(Math.random() * 3)];
+		var resource = new Resource(resourceType);
+		resource.x = Math.random() * 1800 + 124;
+		resource.y = -50;
+		resources.push(resource);
+		game.addChild(resource);
+	}
+}
+function updateUI() {
+	scoreText.setText('Score: ' + LK.getScore());
+	healthText.setText('Health: ' + spaceship.health);
+	resourceText.setText('Crystals: ' + playerResources.crystal + ' | Metal: ' + playerResources.metal + ' | Energy: ' + playerResources.energy);
+}
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		dragNode.x = Math.max(40, Math.min(2008, x));
+		dragNode.y = Math.max(50, Math.min(2682, y));
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	dragNode = spaceship;
+	handleMove(x, y, obj);
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Main game loop
+game.update = function () {
+	// Spawn waves
+	waveTimer++;
+	if (waveTimer >= 300) {
+		// 5 seconds at 60fps
+		spawnWave();
+		waveTimer = 0;
+	}
+	// Spawn resources
+	resourceSpawnTimer++;
+	if (resourceSpawnTimer >= 120) {
+		// 2 seconds
+		spawnResource();
+		resourceSpawnTimer = 0;
+	}
+	// Update bullets
+	for (var i = bullets.length - 1; i >= 0; i--) {
+		var bullet = bullets[i];
+		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
+		// Remove off-screen bullets
+		if (bullet.lastY >= -20 && bullet.y < -20) {
+			bullet.destroy();
+			bullets.splice(i, 1);
+			continue;
+		}
+		// Check bullet-enemy collisions
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var enemy = enemies[j];
+			if (!enemy.destroyed && bullet.intersects(enemy)) {
+				enemy.takeDamage(bullet.damage);
+				bullet.destroy();
+				bullets.splice(i, 1);
+				if (enemy.destroyed) {
+					LK.setScore(LK.getScore() + (enemy.type === 'boss' ? 100 : enemy.type === 'fighter' ? 50 : 25));
+					enemy.destroy();
+					enemies.splice(j, 1);
+				}
+				break;
+			}
+		}
+		if (i < bullets.length) {
+			bullet.lastY = bullet.y;
+		}
+	}
+	// Update enemy bullets
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var enemyBullet = enemyBullets[i];
+		if (enemyBullet.lastY === undefined) enemyBullet.lastY = enemyBullet.y;
+		// Remove off-screen enemy bullets
+		if (enemyBullet.lastY <= 2750 && enemyBullet.y > 2750) {
+			enemyBullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check enemy bullet-player collision
+		if (enemyBullet.intersects(spaceship)) {
+			spaceship.takeDamage(enemyBullet.damage);
+			enemyBullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		enemyBullet.lastY = enemyBullet.y;
+	}
+	// Update enemies
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var enemy = enemies[i];
+		if (enemy.lastY === undefined) enemy.lastY = enemy.y;
+		// Remove off-screen enemies
+		if (enemy.lastY <= 2800 && enemy.y > 2800) {
+			if (!enemy.destroyed) {
+				enemy.destroy();
+			}
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Check enemy-player collision
+		if (!enemy.destroyed && enemy.intersects(spaceship)) {
+			spaceship.takeDamage(30);
+			enemy.takeDamage(enemy.maxHealth);
+			if (enemy.destroyed) {
+				enemy.destroy();
+				enemies.splice(i, 1);
+			}
+			continue;
+		}
+		enemy.lastY = enemy.y;
+	}
+	// Update resources
+	for (var i = resources.length - 1; i >= 0; i--) {
+		var resource = resources[i];
+		if (resource.lastY === undefined) resource.lastY = resource.y;
+		// Remove off-screen resources
+		if (resource.lastY <= 2800 && resource.y > 2800) {
+			resource.destroy();
+			resources.splice(i, 1);
+			continue;
+		}
+		// Check resource collection
+		if (resource.intersects(spaceship)) {
+			playerResources[resource.type] += resource.value;
+			LK.setScore(LK.getScore() + resource.value);
+			LK.getSound('collect').play();
+			resource.destroy();
+			resources.splice(i, 1);
+			continue;
+		}
+		resource.lastY = resource.y;
+	}
+	updateUI();
+};
+// Start the first wave
+spawnWave();
\ No newline at end of file