/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var AmmoUI = Container.expand(function () {
	var self = Container.call(this);
	var ammoGraphics = self.attachAsset('ammo', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var ammoText = new Text2('0', {
		size: 40,
		fill: 0xFFFFFF
	});
	ammoText.anchor.set(0.5, 0.5);
	ammoText.y = 60;
	self.addChild(ammoText);
	self.update = function (currentAmmo, maxAmmo) {
		ammoText.setText(currentAmmo + '/' + maxAmmo);
	};
	return self;
});
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 = 1; // Default damage, will be set by player
	self.update = function () {
		self.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 = 1;
	self.speed = 3;
	self.scoreValue = 10;
	self.movePattern = 'direct'; // Can be 'direct', 'zigzag', 'circular'
	self.moveCounter = 0;
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health <= 0) {
			return true; // Enemy is destroyed
		}
		// Flash white when hit
		LK.effects.flashObject(self, 0xffffff, 200);
		return false;
	};
	self.setType = function (type) {
		if (type === 'basic') {
			enemyGraphics.tint = 0xe74c3c; // Red
			self.health = 1;
			self.speed = 3;
			self.scoreValue = 10;
			self.movePattern = 'direct';
		} else if (type === 'fast') {
			enemyGraphics.tint = 0xe67e22; // Orange
			self.health = 1;
			self.speed = 6;
			self.scoreValue = 15;
			self.movePattern = 'zigzag';
		} else if (type === 'tank') {
			enemyGraphics.tint = 0x7f8c8d; // Gray
			self.health = 3;
			self.speed = 2;
			self.scoreValue = 25;
			self.movePattern = 'direct';
			// Make it bigger
			enemyGraphics.scale.set(2.0, 2.0);
		}
	};
	self.update = function () {
		self.moveCounter++;
		if (self.movePattern === 'direct') {
			self.y += self.speed;
		} else if (self.movePattern === 'zigzag') {
			self.y += self.speed;
			self.x += Math.sin(self.moveCounter * 0.1) * 3;
		} else if (self.movePattern === 'circular') {
			self.y += self.speed * 0.8;
			self.x += Math.sin(self.moveCounter * 0.05) * 4;
		}
	};
	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.ammo = 30;
	self.maxAmmo = 30;
	self.fireRate = 10;
	self.damage = 1;
	self.lastFired = 0;
	self.inFrenzyMode = false;
	self.frenzyTimeLeft = 0;
	self.frenzyDuration = 300; // Initial frenzy duration (5 seconds at 60fps)
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health <= 0) {
			self.health = 0;
		}
		// Flash red when taking damage
		LK.effects.flashObject(self, 0xff0000, 300);
	};
	self.shoot = function () {
		if (LK.ticks - self.lastFired < 60 / self.fireRate) {
			return null;
		}
		if (self.ammo <= 0 && !self.inFrenzyMode) {
			return null;
		}
		if (!self.inFrenzyMode) {
			self.ammo--;
		}
		self.lastFired = LK.ticks;
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y - 40;
		bullet.damage = self.damage;
		LK.getSound('shoot').play();
		return bullet;
	};
	self.activateFrenzy = function () {
		self.inFrenzyMode = true;
		self.frenzyTimeLeft = self.frenzyDuration;
		playerGraphics.tint = 0xf39c12; // Change color to orange in frenzy mode
	};
	self.reloadAmmo = function (amount) {
		self.ammo = Math.min(self.maxAmmo, self.ammo + amount);
	};
	self.update = function () {
		if (self.inFrenzyMode) {
			self.frenzyTimeLeft--;
			if (self.frenzyTimeLeft <= 0) {
				self.inFrenzyMode = false;
				playerGraphics.tint = 0xffffff; // Reset color
			}
		}
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'ammo'; // Can be 'ammo', 'frenzy', 'health'
	self.speed = 2;
	self.setType = function (newType) {
		self.type = newType;
		if (newType === 'ammo') {
			powerupGraphics.tint = 0x2ecc71; // Green
		} else if (newType === 'frenzy') {
			powerupGraphics.tint = 0xf39c12; // Orange
		} else if (newType === 'health') {
			powerupGraphics.tint = 0x3498db; // Blue
		}
	};
	self.update = function () {
		self.y += self.speed;
		// Slight wobble effect
		self.x += Math.sin(LK.ticks * 0.05) * 0.5;
	};
	return self;
});
var Upgrade = Container.expand(function () {
	var self = Container.call(this);
	var upgradeGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	upgradeGraphics.tint = 0xFFD700; // Gold color for upgrades
	// Text to display upgrade info
	var nameText = new Text2('', {
		size: 30,
		fill: 0xFFFFFF
	});
	nameText.anchor.set(0.5, 0);
	nameText.y = -50;
	self.addChild(nameText);
	var levelText = new Text2('', {
		size: 24,
		fill: 0xFFFFFF
	});
	levelText.anchor.set(0.5, 0);
	levelText.y = -20;
	self.addChild(levelText);
	var costText = new Text2('', {
		size: 24,
		fill: 0xFFD700
	});
	costText.anchor.set(0.5, 0);
	costText.y = 10;
	self.addChild(costText);
	self.type = '';
	self.level = 1;
	self.maxLevel = 5;
	self.cost = 100;
	self.name = '';
	self.description = '';
	self.setType = function (type) {
		self.type = type;
		if (type === 'fireRate') {
			self.name = 'Fire Rate';
			self.description = 'Increase firing speed';
			upgradeGraphics.tint = 0xFF5500; // Orange-red
		} else if (type === 'damage') {
			self.name = 'Damage';
			self.description = 'Increase bullet damage';
			upgradeGraphics.tint = 0xFF0000; // Red
		} else if (type === 'maxAmmo') {
			self.name = 'Max Ammo';
			self.description = 'Increase ammo capacity';
			upgradeGraphics.tint = 0x00FF00; // Green
		} else if (type === 'frenzyTime') {
			self.name = 'Frenzy Time';
			self.description = 'Extend frenzy duration';
			upgradeGraphics.tint = 0xFFFF00; // Yellow
		}
		self.updateText();
	};
	self.updateText = function () {
		nameText.setText(self.name);
		levelText.setText('Level: ' + self.level + '/' + self.maxLevel);
		costText.setText(self.cost + ' pts');
	};
	self.purchase = function () {
		if (self.level >= self.maxLevel) {
			return false;
		}
		self.level++;
		self.cost = Math.floor(self.cost * 1.5);
		self.updateText();
		return true;
	};
	self.down = function (x, y, obj) {
		// Handle clicking on this upgrade
		LK.effects.flashObject(self, 0xFFFFFF, 200);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
// Game state variables
var player;
var bullets = [];
var enemies = [];
var powerups = [];
var score = 0;
var wave = 1;
var enemiesKilled = 0;
var enemiesThisWave = 10;
var enemySpawnRate = 120; // Frames between enemy spawns
var lastEnemySpawn = 0;
var isGameOver = false;
var isPaused = false;
var showingUpgradeMenu = false;
var upgrades = [];
// UI elements
var scoreText;
var waveText;
var healthBar;
var ammoUI;
var frenzyMeter;
var upgradeButton;
var upgradeMenu;
// Game boundaries
var gameBounds = {
	left: 100,
	right: 2048 - 100,
	top: 100,
	bottom: 2732 - 200
};
// Initialize player
function initPlayer() {
	player = new Player();
	player.x = 2048 / 2;
	player.y = 2732 - 300;
	game.addChild(player);
}
// Initialize UI
function initUI() {
	// Score display
	scoreText = new Text2('Score: 0', {
		size: 60,
		fill: 0xFFFFFF
	});
	scoreText.anchor.set(0, 0);
	scoreText.x = 120;
	scoreText.y = 50;
	LK.gui.addChild(scoreText);
	// Wave display
	waveText = new Text2('Wave 1', {
		size: 60,
		fill: 0xFFFFFF
	});
	waveText.anchor.set(1, 0);
	waveText.x = 2048 - 120;
	waveText.y = 50;
	LK.gui.addChild(waveText);
	// Health bar
	healthBar = game.addChild(LK.getAsset('player', {
		anchorX: 0,
		anchorY: 0.5,
		scaleX: 3,
		scaleY: 0.3,
		x: 120,
		y: 130,
		tint: 0x3498db
	}));
	// Ammo UI
	ammoUI = new AmmoUI();
	ammoUI.x = 200;
	ammoUI.y = 200;
	game.addChild(ammoUI);
	ammoUI.update(player.ammo, player.maxAmmo); // Initialize with current ammo values
	// Ammo Bar
	var ammoBarBackground = game.addChild(LK.getAsset('bullet', {
		anchorX: 0,
		anchorY: 0.5,
		scaleX: 3,
		scaleY: 0.3,
		x: 120,
		y: 200,
		tint: 0x333333
	}));
	ammoBar = game.addChild(LK.getAsset('bullet', {
		anchorX: 0,
		anchorY: 0.5,
		scaleX: 3,
		scaleY: 0.3,
		x: 120,
		y: 200,
		tint: 0x2ecc71
	}));
	// Frenzy indicator
	frenzyMeter = game.addChild(LK.getAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 2048 - 150,
		y: 150,
		alpha: 0.3,
		tint: 0xf39c12
	}));
	// Upgrade button
	upgradeButton = new Text2('UPGRADES', {
		size: 50,
		fill: 0xFFD700
	});
	upgradeButton.anchor.set(0.5, 0.5);
	upgradeButton.x = 2048 - 200;
	upgradeButton.y = 250;
	game.addChild(upgradeButton);
	// Upgrade menu container (initially hidden)
	upgradeMenu = new Container();
	upgradeMenu.visible = false;
	game.addChild(upgradeMenu);
	// Semi-transparent background
	var menuBg = LK.getAsset('bullet', {
		anchorX: 0,
		anchorY: 0,
		scaleX: 20,
		scaleY: 25,
		tint: 0x000000,
		alpha: 0.7
	});
	upgradeMenu.addChild(menuBg);
	// Menu title
	var menuTitle = new Text2('UPGRADES', {
		size: 80,
		fill: 0xFFD700
	});
	menuTitle.anchor.set(0.5, 0);
	menuTitle.x = 2048 / 2;
	menuTitle.y = 100;
	upgradeMenu.addChild(menuTitle);
	// Close button
	var closeButton = new Text2('CLOSE', {
		size: 60,
		fill: 0xFFFFFF
	});
	closeButton.anchor.set(0.5, 0.5);
	closeButton.x = 2048 / 2;
	closeButton.y = 2732 - 200;
	closeButton.down = function () {
		toggleUpgradeMenu();
	};
	upgradeMenu.addChild(closeButton);
	// Create upgrade options
	initUpgrades();
}
// Initialize upgrades
function initUpgrades() {
	// Clear previous upgrades if any
	for (var i = 0; i < upgrades.length; i++) {
		upgrades[i].destroy();
	}
	upgrades = [];
	// Create new upgrades
	var upgradeTypes = ['fireRate', 'damage', 'maxAmmo', 'frenzyTime'];
	var baseX = 2048 / 2;
	var baseY = 600;
	var spacing = 300;
	for (var i = 0; i < upgradeTypes.length; i++) {
		var upgrade = new Upgrade();
		upgrade.setType(upgradeTypes[i]);
		upgrade.x = baseX;
		upgrade.y = baseY + i * spacing;
		// Load saved level if exists
		var upgradeKey = 'upgrade_' + upgradeTypes[i];
		var savedLevel = storage[upgradeKey];
		if (savedLevel !== undefined) {
			upgrade.level = savedLevel;
			upgrade.cost = Math.floor(100 * Math.pow(1.5, upgrade.level - 1));
			upgrade.updateText();
		}
		upgrade.down = function () {
			if (score >= this.cost && this.level < this.maxLevel) {
				score -= this.cost;
				scoreText.setText('Score: ' + score);
				this.purchase();
				// Apply upgrade effect
				applyUpgrade(this.type, this.level);
				// Save upgrade level
				var upgradeKey = 'upgrade_' + this.type;
				storage[upgradeKey] = this.level;
				// Flash to indicate purchase
				LK.effects.flashObject(this, 0x00FF00, 300);
			} else {
				// Flash red if can't afford
				LK.effects.flashObject(this, 0xFF0000, 300);
			}
		};
		upgradeMenu.addChild(upgrade);
		upgrades.push(upgrade);
	}
	// Apply saved upgrades to player
	for (var i = 0; i < upgrades.length; i++) {
		applyUpgrade(upgrades[i].type, upgrades[i].level);
	}
}
// Apply upgrade effects to player
function applyUpgrade(type, level) {
	if (!player) {
		return;
	}
	var baseValue, increment;
	if (type === 'fireRate') {
		baseValue = 10;
		increment = 2;
		player.fireRate = baseValue + (level - 1) * increment;
	} else if (type === 'damage') {
		baseValue = 1;
		increment = 0.5;
		player.damage = baseValue + (level - 1) * increment;
	} else if (type === 'maxAmmo') {
		baseValue = 30;
		increment = 10;
		var newMaxAmmo = baseValue + (level - 1) * increment;
		player.ammo += newMaxAmmo - player.maxAmmo;
		player.maxAmmo = newMaxAmmo;
	} else if (type === 'frenzyTime') {
		baseValue = 300;
		increment = 60;
		player.frenzyDuration = baseValue + (level - 1) * increment;
	}
}
// Toggle upgrade menu visibility
function toggleUpgradeMenu() {
	showingUpgradeMenu = !showingUpgradeMenu;
	upgradeMenu.visible = showingUpgradeMenu;
}
// Spawn enemy
function spawnEnemy() {
	var enemy = new Enemy();
	// Randomize initial position (along top of screen)
	enemy.x = gameBounds.left + Math.random() * (gameBounds.right - gameBounds.left);
	enemy.y = -50;
	// Determine enemy type based on wave and randomness
	var rand = Math.random();
	if (wave < 3) {
		enemy.setType('basic');
	} else if (wave < 5) {
		if (rand < 0.7) {
			enemy.setType('basic');
		} else if (rand < 0.9) {
			enemy.setType('fast');
		} else {
			enemy.setType('tank');
		}
	} else {
		if (rand < 0.5) {
			enemy.setType('basic');
		} else if (rand < 0.8) {
			enemy.setType('fast');
		} else {
			enemy.setType('tank');
		}
	}
	game.addChild(enemy);
	enemies.push(enemy);
}
// Spawn powerup
function spawnPowerup(x, y) {
	// 20% chance to spawn a powerup when enemy dies
	if (Math.random() > 0.2) {
		return;
	}
	var powerup = new PowerUp();
	powerup.x = x;
	powerup.y = y;
	// Determine powerup type
	var rand = Math.random();
	if (rand < 0.6) {
		powerup.setType('ammo');
	} else if (rand < 0.9) {
		powerup.setType('health');
	} else {
		powerup.setType('frenzy');
	}
	game.addChild(powerup);
	powerups.push(powerup);
}
// Handle player shooting
function handlePlayerShoot() {
	var bullet = player.shoot();
	if (bullet) {
		game.addChild(bullet);
		bullets.push(bullet);
	}
}
// Update game state
function updateGameState() {
	// Update player
	player.update();
	ammoUI.update(player.ammo, player.maxAmmo);
	// Update health bar
	healthBar.scale.x = player.health / 100 * 3;
	// Update ammo bar
	ammoBar.scale.x = player.ammo / player.maxAmmo * 3;
	// Update frenzy meter
	if (player.inFrenzyMode) {
		frenzyMeter.alpha = 0.5 + Math.sin(LK.ticks * 0.2) * 0.5;
	} else {
		frenzyMeter.alpha = 0.3;
	}
	// Spawn enemies
	if (LK.ticks - lastEnemySpawn >= enemySpawnRate && enemies.length < enemiesThisWave) {
		spawnEnemy();
		lastEnemySpawn = LK.ticks;
	}
	// Next wave logic
	if (enemiesKilled >= enemiesThisWave) {
		wave++;
		enemiesKilled = 0;
		enemiesThisWave = Math.min(50, 10 + wave * 5);
		enemySpawnRate = Math.max(30, 120 - wave * 10);
		waveText.setText('Wave ' + wave);
		// Flash screen green for new wave
		LK.effects.flashScreen(0x2ecc71, 500);
	}
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		bullet.update();
		// Remove bullets that go off screen
		if (bullet.y < -50) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check for bullet collisions with enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				// Enemy takes damage
				var destroyed = enemy.takeDamage(bullet.damage);
				if (destroyed) {
					// Add score
					score += enemy.scoreValue;
					scoreText.setText('Score: ' + score);
					// Increment kill counter
					enemiesKilled++;
					// Spawn powerup
					spawnPowerup(enemy.x, enemy.y);
					// Remove enemy
					enemy.destroy();
					enemies.splice(j, 1);
				}
				// Remove bullet
				bullet.destroy();
				bullets.splice(i, 1);
				// Play hit sound
				LK.getSound('enemyHit').play();
				// Break since bullet is gone
				break;
			}
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		enemy.update();
		// Remove enemies that go off bottom of screen
		if (enemy.y > gameBounds.bottom + 50) {
			// Player takes damage when enemy passes
			player.takeDamage(10);
			// Remove enemy
			enemy.destroy();
			enemies.splice(i, 1);
			// Play hit sound
			LK.getSound('playerHit').play();
			continue;
		}
		// Check collision with player
		if (enemy.intersects(player)) {
			// Player takes damage
			player.takeDamage(20);
			// Remove enemy
			enemy.destroy();
			enemies.splice(i, 1);
			// Play hit sound
			LK.getSound('playerHit').play();
		}
	}
	// Update powerups
	for (var i = powerups.length - 1; i >= 0; i--) {
		var powerup = powerups[i];
		powerup.update();
		// Remove powerups that go off bottom of screen
		if (powerup.y > gameBounds.bottom + 50) {
			powerup.destroy();
			powerups.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (powerup.intersects(player)) {
			if (powerup.type === 'ammo') {
				player.reloadAmmo(15);
			} else if (powerup.type === 'health') {
				player.health = Math.min(100, player.health + 20);
			} else if (powerup.type === 'frenzy') {
				player.activateFrenzy();
			}
			// Play powerup sound
			LK.getSound('powerupCollect').play();
			// Remove powerup
			powerup.destroy();
			powerups.splice(i, 1);
		}
	}
	// Check for game over
	if (player.health <= 0 && !isGameOver) {
		isGameOver = true;
		LK.showGameOver();
	}
	// Auto-shoot in frenzy mode
	if (player.inFrenzyMode && LK.ticks % 5 === 0) {
		handlePlayerShoot();
	}
}
// Initialize game
function initGame() {
	// Reset game state
	bullets = [];
	enemies = [];
	powerups = [];
	showingUpgradeMenu = false;
	score = 0;
	wave = 1;
	enemiesKilled = 0;
	enemiesThisWave = 10;
	enemySpawnRate = 120;
	lastEnemySpawn = 0;
	isGameOver = false;
	// Set score
	LK.setScore(0);
	// Init player and UI
	initPlayer();
	initUI();
	// Play music
	LK.playMusic('gameMusic', {
		fade: {
			start: 0,
			end: 1,
			duration: 1000
		}
	});
}
// Initialize the game
initGame();
// Touch/mouse handlers for player movement
var isDragging = false;
game.down = function (x, y, obj) {
	// Check if upgrade button was clicked
	if (obj.target === upgradeButton) {
		toggleUpgradeMenu();
		return;
	}
	// If upgrade menu is showing, don't process player movement/shooting
	if (showingUpgradeMenu) {
		return;
	}
	isDragging = true;
	player.x = x;
	// Constrain player to game bounds
	player.x = Math.max(gameBounds.left, Math.min(gameBounds.right, player.x));
	// Shoot on tap
	handlePlayerShoot();
};
game.up = function (x, y, obj) {
	isDragging = false;
};
game.move = function (x, y, obj) {
	if (isDragging && !showingUpgradeMenu) {
		player.x = x;
		// Constrain player to game bounds
		player.x = Math.max(gameBounds.left, Math.min(gameBounds.right, player.x));
	}
};
// Main game loop
game.update = function () {
	if (!isGameOver && !showingUpgradeMenu) {
		updateGameState();
	}
	// Update score
	LK.setScore(score);
};

===================================================================
--- original.js
+++ change.js
@@ -434,10 +434,10 @@
 		upgrade.y = baseY + i * spacing;
 		// Load saved level if exists
 		var upgradeKey = 'upgrade_' + upgradeTypes[i];
 		var savedLevel = storage[upgradeKey];
-		if (savedLevel) {
-			upgrade.level = parseInt(savedLevel);
+		if (savedLevel !== undefined) {
+			upgrade.level = savedLevel;
 			upgrade.cost = Math.floor(100 * Math.pow(1.5, upgrade.level - 1));
 			upgrade.updateText();
 		}
 		upgrade.down = function () {
@@ -448,9 +448,9 @@
 				// Apply upgrade effect
 				applyUpgrade(this.type, this.level);
 				// Save upgrade level
 				var upgradeKey = 'upgrade_' + this.type;
-				storage[upgradeKey] = this.level.toString();
+				storage[upgradeKey] = this.level;
 				// Flash to indicate purchase
 				LK.effects.flashObject(this, 0x00FF00, 300);
 			} else {
 				// Flash red if can't afford