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

/**** 
* Classes
****/ 
var FastZombie = Container.expand(function () {
	var self = Container.call(this);
	var zombieGraphics = self.attachAsset('fastZombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 1;
	self.maxHealth = 1;
	self.speed = 3;
	self.points = 15;
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		if (player) {
			self.lastX = self.x;
			self.lastY = self.y;
			var dx = player.x - self.x;
			var dy = player.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				// Run away from player instead of towards
				self.x -= dx / distance * self.speed * zombieSpeedMultiplier;
				self.y -= dy / distance * self.speed * zombieSpeedMultiplier;
			}
		}
	};
	return self;
});
var Menu = Container.expand(function () {
	var self = Container.call(this);
	var playButton = self.attachAsset('menuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -100
	});
	var playText = new Text2('PLAY', {
		size: 60,
		fill: 0xFFFFFF
	});
	playText.anchor.set(0.5, 0.5);
	playText.y = -100;
	self.addChild(playText);
	var settingsButton = self.attachAsset('settingButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: 50
	});
	var settingsText = new Text2('SETTINGS', {
		size: 40,
		fill: 0xFFFFFF
	});
	settingsText.anchor.set(0.5, 0.5);
	settingsText.y = 50;
	self.addChild(settingsText);
	self.down = function (x, y, obj) {
		// Use the x,y parameters directly instead of obj.parent.toGlobal
		var localPos = self.toLocal({
			x: x,
			y: y
		});
		if (localPos.y > -150 && localPos.y < -50) {
			LK.getSound('menuClick').play();
			startGame();
		} else if (localPos.y > 10 && localPos.y < 90) {
			LK.getSound('menuClick').play();
			showSettings();
		}
	};
	return self;
});
var Particle = Container.expand(function () {
	var self = Container.call(this);
	var particleGraphics = self.attachAsset('particle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vx = 0;
	self.vy = 0;
	self.life = 60;
	self.maxLife = 60;
	self.update = function () {
		self.x += self.vx;
		self.y += self.vy;
		self.life--;
		self.alpha = self.life / self.maxLife;
		if (self.life <= 0) {
			self.destroy();
		}
	};
	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.lastCollidedZombies = [];
	return self;
});
var SettingsMenu = Container.expand(function () {
	var self = Container.call(this);
	var titleText = new Text2('SETTINGS', {
		size: 80,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.y = -300;
	self.addChild(titleText);
	var musicVolumeText = new Text2('Music Volume: ' + Math.round(musicVolume * 100) + '%', {
		size: 50,
		fill: 0xFFFFFF
	});
	musicVolumeText.anchor.set(0.5, 0.5);
	musicVolumeText.y = -200;
	self.addChild(musicVolumeText);
	var volumeUpButton = self.attachAsset('settingButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: -200,
		y: -150
	});
	var volumeUpText = new Text2('+', {
		size: 60,
		fill: 0xFFFFFF
	});
	volumeUpText.anchor.set(0.5, 0.5);
	volumeUpText.x = -200;
	volumeUpText.y = -150;
	self.addChild(volumeUpText);
	var volumeDownButton = self.attachAsset('settingButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 200,
		y: -150
	});
	var volumeDownText = new Text2('-', {
		size: 60,
		fill: 0xFFFFFF
	});
	volumeDownText.anchor.set(0.5, 0.5);
	volumeDownText.x = 200;
	volumeDownText.y = -150;
	self.addChild(volumeDownText);
	var zombieSpeedText = new Text2('Zombie Speed: ' + zombieSpeedMultiplier, {
		size: 50,
		fill: 0xFFFFFF
	});
	zombieSpeedText.anchor.set(0.5, 0.5);
	zombieSpeedText.y = -50;
	self.addChild(zombieSpeedText);
	var speedUpButton = self.attachAsset('settingButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: -200,
		y: 0
	});
	var speedUpText = new Text2('+', {
		size: 60,
		fill: 0xFFFFFF
	});
	speedUpText.anchor.set(0.5, 0.5);
	speedUpText.x = -200;
	speedUpText.y = 0;
	self.addChild(speedUpText);
	var speedDownButton = self.attachAsset('settingButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 200,
		y: 0
	});
	var speedDownText = new Text2('-', {
		size: 60,
		fill: 0xFFFFFF
	});
	speedDownText.anchor.set(0.5, 0.5);
	speedDownText.x = 200;
	speedDownText.y = 0;
	self.addChild(speedDownText);
	var backButton = self.attachAsset('menuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: 200
	});
	var backText = new Text2('BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backText.anchor.set(0.5, 0.5);
	backText.y = 200;
	self.addChild(backText);
	self.down = function (x, y, obj) {
		// Use the x,y parameters directly instead of obj.parent.toGlobal
		var localPos = self.toLocal({
			x: x,
			y: y
		});
		if (localPos.x > -350 && localPos.x < -50 && localPos.y > -190 && localPos.y < -110) {
			// Volume up
			musicVolume = Math.min(1, musicVolume + 0.1);
			musicVolumeText.setText('Music Volume: ' + Math.round(musicVolume * 100) + '%');
			storage.musicVolume = musicVolume;
			LK.getSound('menuClick').play();
		} else if (localPos.x > 50 && localPos.x < 350 && localPos.y > -190 && localPos.y < -110) {
			// Volume down
			musicVolume = Math.max(0, musicVolume - 0.1);
			musicVolumeText.setText('Music Volume: ' + Math.round(musicVolume * 100) + '%');
			storage.musicVolume = musicVolume;
			LK.getSound('menuClick').play();
		} else if (localPos.x > -350 && localPos.x < -50 && localPos.y > -40 && localPos.y < 40) {
			// Speed up
			zombieSpeedMultiplier = Math.min(3, zombieSpeedMultiplier + 0.2);
			zombieSpeedText.setText('Zombie Speed: ' + zombieSpeedMultiplier.toFixed(1));
			LK.getSound('menuClick').play();
		} else if (localPos.x > 50 && localPos.x < 350 && localPos.y > -40 && localPos.y < 40) {
			// Speed down
			zombieSpeedMultiplier = Math.max(0.2, zombieSpeedMultiplier - 0.2);
			zombieSpeedText.setText('Zombie Speed: ' + zombieSpeedMultiplier.toFixed(1));
			LK.getSound('menuClick').play();
		} else if (localPos.y > 150 && localPos.y < 250) {
			// Back
			LK.getSound('menuClick').play();
			showMenu();
		}
	};
	return self;
});
var TankZombie = Container.expand(function () {
	var self = Container.call(this);
	var zombieGraphics = self.attachAsset('tankZombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 3;
	self.maxHealth = 3;
	self.speed = 1;
	self.points = 25;
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		if (player) {
			self.lastX = self.x;
			self.lastY = self.y;
			var dx = player.x - self.x;
			var dy = player.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				// Run away from player instead of towards
				self.x -= dx / distance * self.speed * zombieSpeedMultiplier;
				self.y -= dy / distance * self.speed * zombieSpeedMultiplier;
			}
		}
	};
	return self;
});
var Zombie = Container.expand(function () {
	var self = Container.call(this);
	var zombieGraphics = self.attachAsset('zombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 1;
	self.maxHealth = 1;
	self.speed = 1.5;
	self.points = 10;
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		if (player) {
			self.lastX = self.x;
			self.lastY = self.y;
			var dx = player.x - self.x;
			var dy = player.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				// Run away from player instead of towards
				self.x -= dx / distance * self.speed;
				self.y -= dy / distance * self.speed;
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2F4F2F
});

/**** 
* Game Code
****/ 
// Game state variables
var gameState = 'menu'; // 'menu', 'settings', 'playing'
var menu;
var settingsMenu;
var particles = [];
var zombieSpeedMultiplier = 1.0;
var musicVolume = storage.musicVolume || 1.0;
// Game variables
var player;
var zombies = [];
var currentWave = 1;
var zombiesSpawned = 0;
var zombiesKilled = 0;
var gameTime = 0;
var waveTime = 0;
var spawnTimer = 0;
var dragNode = null;
var killStreak = 0;
var killStreakTimer = 0;
// Wave configuration
var waveConfigs = [{
	zombieCount: 8,
	spawnDelay: 90,
	zombieTypes: ['zombie']
}, {
	zombieCount: 12,
	spawnDelay: 75,
	zombieTypes: ['zombie', 'fastZombie']
}, {
	zombieCount: 16,
	spawnDelay: 60,
	zombieTypes: ['zombie', 'fastZombie']
}, {
	zombieCount: 20,
	spawnDelay: 50,
	zombieTypes: ['zombie', 'fastZombie', 'tankZombie']
}, {
	zombieCount: 25,
	spawnDelay: 45,
	zombieTypes: ['zombie', 'fastZombie', 'tankZombie']
}, {
	zombieCount: 30,
	spawnDelay: 40,
	zombieTypes: ['zombie', 'fastZombie', 'tankZombie']
}, {
	zombieCount: 35,
	spawnDelay: 35,
	zombieTypes: ['zombie', 'fastZombie', 'tankZombie']
}, {
	zombieCount: 40,
	spawnDelay: 30,
	zombieTypes: ['zombie', 'fastZombie', 'tankZombie']
}];
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
scoreText.x = 120;
scoreText.y = 20;
LK.gui.topLeft.addChild(scoreText);
var waveText = new Text2('Wave: 1', {
	size: 60,
	fill: 0xFFFFFF
});
waveText.anchor.set(0.5, 0);
LK.gui.top.addChild(waveText);
var timerText = new Text2('Time: 90', {
	size: 60,
	fill: 0xFFFFFF
});
timerText.anchor.set(1, 0);
timerText.x = -20;
timerText.y = 20;
LK.gui.topRight.addChild(timerText);
var healthText = new Text2('Health: 100', {
	size: 50,
	fill: 0xFFFFFF
});
healthText.anchor.set(0.5, 1);
healthText.y = -20;
LK.gui.bottom.addChild(healthText);
// Menu system functions
function showMenu() {
	gameState = 'menu';
	if (settingsMenu) {
		settingsMenu.destroy();
		settingsMenu = null;
	}
	if (!menu) {
		menu = game.addChild(new Menu());
		menu.x = 1024;
		menu.y = 1366;
	}
}
function showSettings() {
	gameState = 'settings';
	if (menu) {
		menu.destroy();
		menu = null;
	}
	if (!settingsMenu) {
		settingsMenu = game.addChild(new SettingsMenu());
		settingsMenu.x = 1024;
		settingsMenu.y = 1366;
	}
}
function startGame() {
	gameState = 'playing';
	if (menu) {
		menu.destroy();
		menu = null;
	}
	if (settingsMenu) {
		settingsMenu.destroy();
		settingsMenu = null;
	}
	// Initialize player
	if (!player) {
		player = game.addChild(new Player());
		player.x = 1024;
		player.y = 1366;
	}
	// Start background music
	LK.playMusic('backgroundMusic', {
		loop: true,
		volume: musicVolume
	});
}
function createParticles(x, y, count, color) {
	for (var i = 0; i < count; i++) {
		var particle = new Particle();
		particle.x = x;
		particle.y = y;
		particle.vx = (Math.random() - 0.5) * 10;
		particle.vy = (Math.random() - 0.5) * 10;
		if (color) {
			tween(particle, {
				tint: color
			}, {
				duration: 0
			});
		}
		particles.push(particle);
		game.addChild(particle);
	}
}
// Start with menu
showMenu();
// Spawn zombie function
function spawnZombie() {
	var config = waveConfigs[Math.min(currentWave - 1, waveConfigs.length - 1)];
	var zombieTypes = config.zombieTypes;
	var randomType = zombieTypes[Math.floor(Math.random() * zombieTypes.length)];
	var zombie;
	if (randomType === 'fastZombie') {
		zombie = new FastZombie();
	} else if (randomType === 'tankZombie') {
		zombie = new TankZombie();
	} else {
		zombie = new Zombie();
	}
	// Apply speed multiplier
	zombie.speed *= zombieSpeedMultiplier;
	// Spawn from random edge
	var edge = Math.floor(Math.random() * 4);
	if (edge === 0) {
		// Top
		zombie.x = Math.random() * 2048;
		zombie.y = -30;
	} else if (edge === 1) {
		// Right
		zombie.x = 2078;
		zombie.y = Math.random() * 2732;
	} else if (edge === 2) {
		// Bottom
		zombie.x = Math.random() * 2048;
		zombie.y = 2762;
	} else {
		// Left
		zombie.x = -30;
		zombie.y = Math.random() * 2732;
	}
	zombie.lastX = zombie.x;
	zombie.lastY = zombie.y;
	// Create spawn particles
	createParticles(zombie.x, zombie.y, 6, 0x8b4513);
	zombies.push(zombie);
	game.addChild(zombie);
	zombiesSpawned++;
}
// Update UI function
function updateUI() {
	scoreText.setText('Score: ' + LK.getScore());
	waveText.setText('Wave: ' + currentWave);
	timerText.setText('Time: ' + Math.max(0, Math.ceil((90 * 60 - gameTime) / 60)));
	healthText.setText('Health: ' + player.health);
}
// Handle move events
function handleMove(x, y, obj) {
	if (dragNode) {
		// Keep target position within bounds
		var targetX = Math.max(40, Math.min(2008, x));
		var targetY = Math.max(40, Math.min(2692, y));
		// Stop any existing movement tween
		tween.stop(dragNode, {
			x: true,
			y: true
		});
		// Smoothly move to target position
		tween(dragNode, {
			x: targetX,
			y: targetY
		}, {
			duration: 300,
			easing: tween.easeOut
		});
	}
}
// Game event handlers
game.move = handleMove;
game.down = function (x, y, obj) {
	if (gameState === 'playing' && player) {
		dragNode = player;
		handleMove(x, y, obj);
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Main game update loop
game.update = function () {
	// Update particles
	for (var p = particles.length - 1; p >= 0; p--) {
		var particle = particles[p];
		if (particle.life <= 0) {
			particles.splice(p, 1);
		}
	}
	// Only run game logic when playing
	if (gameState !== 'playing' || !player) {
		return;
	}
	gameTime++;
	waveTime++;
	// Update kill streak timer
	if (killStreakTimer > 0) {
		killStreakTimer--;
		if (killStreakTimer <= 0) {
			killStreak = 0;
		}
	}
	// Wave management
	var config = waveConfigs[Math.min(currentWave - 1, waveConfigs.length - 1)];
	// Spawn zombies
	if (zombiesSpawned < config.zombieCount) {
		spawnTimer++;
		if (spawnTimer >= config.spawnDelay) {
			spawnZombie();
			spawnTimer = 0;
		}
	}
	// Check wave completion
	if (zombiesSpawned >= config.zombieCount && zombies.length === 0) {
		currentWave++;
		zombiesSpawned = 0;
		waveTime = 0;
		// Bonus points for wave completion
		LK.setScore(LK.getScore() + currentWave * 50);
		LK.getSound('waveStart').play();
		// Restore some health
		player.health = Math.min(player.maxHealth, player.health + 20);
		// Create celebration particles
		createParticles(player.x, player.y, 15, 0x00ff00);
	}
	// Update zombies and check player collision for combat
	for (var k = zombies.length - 1; k >= 0; k--) {
		var zombie = zombies[k];
		// Initialize collision tracking if not exists
		if (zombie.lastCollidingWithPlayer === undefined) {
			zombie.lastCollidingWithPlayer = false;
		}
		// Check current collision state
		var currentlyColliding = zombie.intersects(player);
		// If collision just started (transition from false to true)
		if (!zombie.lastCollidingWithPlayer && currentlyColliding) {
			// Player kills zombie by running into it
			zombie.health--;
			// Flash zombie when hit
			LK.effects.flashObject(zombie, 0xff0000, 200);
			LK.getSound('playerAttack').play();
			// Create hit particles
			createParticles(zombie.x, zombie.y, 8, 0xff0000);
			if (zombie.health <= 0) {
				// Add score with kill streak multiplier
				var points = zombie.points * (1 + killStreak * 0.1);
				LK.setScore(LK.getScore() + Math.floor(points));
				killStreak++;
				killStreakTimer = 180; // 3 seconds
				// Create death particles
				createParticles(zombie.x, zombie.y, 12, 0xffff00);
				LK.getSound('zombieDeath').play();
				zombie.destroy();
				zombies.splice(k, 1);
				zombiesKilled++;
			} else {
				// If zombie survives, player takes damage
				player.health -= 5;
				LK.effects.flashScreen(0xff0000, 300);
				LK.getSound('playerHurt').play();
				if (player.health <= 0) {
					LK.showGameOver();
					return;
				}
			}
		}
		// Update collision tracking
		zombie.lastCollidingWithPlayer = currentlyColliding;
	}
	// Check win condition (90 seconds = 5400 frames at 60fps)
	if (gameTime >= 5400) {
		LK.showYouWin();
		return;
	}
	// Update UI
	updateUI();
};

===================================================================
--- original.js
+++ change.js
@@ -212,15 +212,15 @@
 		if (localPos.x > -350 && localPos.x < -50 && localPos.y > -190 && localPos.y < -110) {
 			// Volume up
 			musicVolume = Math.min(1, musicVolume + 0.1);
 			musicVolumeText.setText('Music Volume: ' + Math.round(musicVolume * 100) + '%');
-			storage.set('musicVolume', musicVolume);
+			storage.musicVolume = musicVolume;
 			LK.getSound('menuClick').play();
 		} else if (localPos.x > 50 && localPos.x < 350 && localPos.y > -190 && localPos.y < -110) {
 			// Volume down
 			musicVolume = Math.max(0, musicVolume - 0.1);
 			musicVolumeText.setText('Music Volume: ' + Math.round(musicVolume * 100) + '%');
-			storage.set('musicVolume', musicVolume);
+			storage.musicVolume = musicVolume;
 			LK.getSound('menuClick').play();
 		} else if (localPos.x > -350 && localPos.x < -50 && localPos.y > -40 && localPos.y < 40) {
 			// Speed up
 			zombieSpeedMultiplier = Math.min(3, zombieSpeedMultiplier + 0.2);
@@ -311,9 +311,9 @@
 var menu;
 var settingsMenu;
 var particles = [];
 var zombieSpeedMultiplier = 1.0;
-var musicVolume = storage.get('musicVolume', 1.0);
+var musicVolume = storage.musicVolume || 1.0;
 // Game variables
 var player;
 var zombies = [];
 var currentWave = 1;