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

/**** 
* Classes
****/ 
var Castle = Container.expand(function () {
	var self = Container.call(this);
	var castleGraphics = self.attachAsset('castle', {
		anchorX: 0.5,
		anchorY: 1
	});
	return self;
});
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.value = 10;
	self.bobOffset = Math.random() * Math.PI * 2;
	self.update = function () {
		// Bobbing animation
		self.y += Math.sin(LK.ticks * 0.1 + self.bobOffset) * 0.5;
		// Rotate
		coinGraphics.rotation += 0.1;
	};
	return self;
});
var Elf = Container.expand(function () {
	var self = Container.call(this);
	var elfGraphics = self.attachAsset('elf', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 2;
	self.speed = 2;
	self.shootCooldown = 0;
	self.direction = 1;
	self.update = function () {
		// Move towards player
		if (player.y > self.y) {
			self.y += self.speed;
		}
		// Side to side movement
		self.x += self.direction * 1;
		if (self.x <= 100 || self.x >= 1948) {
			self.direction *= -1;
		}
		// Shoot at player
		if (self.shootCooldown <= 0 && Math.random() < 0.02) {
			self.shoot();
			self.shootCooldown = 60;
		} else {
			self.shootCooldown--;
		}
	};
	self.shoot = function () {
		var bullet = new ElfBullet();
		bullet.x = self.x;
		bullet.y = self.y + 40;
		elfBullets.push(bullet);
		game.addChild(bullet);
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		LK.effects.flashObject(self, 0xFF0000, 200);
		if (self.health <= 0) {
			self.die();
		}
	};
	self.die = function () {
		// Drop coin
		var coin = new Coin();
		coin.x = self.x;
		coin.y = self.y;
		coins.push(coin);
		game.addChild(coin);
		// Remove from array
		for (var i = elves.length - 1; i >= 0; i--) {
			if (elves[i] === self) {
				elves.splice(i, 1);
				break;
			}
		}
		self.destroy();
		elvesKilled++;
	};
	return self;
});
var ElfBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('elfBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.update = function () {
		self.y += self.speed;
	};
	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 = 3;
	self.maxHealth = 3;
	self.damage = 1;
	self.speed = 8;
	self.shootCooldown = 0;
	self.update = function () {
		// Move based on drag position if being dragged
		if (self.isDragging && dragTarget === self) {
			// Movement is handled in game.move
		}
		// Auto-shoot
		if (self.shootCooldown <= 0) {
			self.shoot();
			self.shootCooldown = 15; // Shoot every 15 frames
		} else {
			self.shootCooldown--;
		}
	};
	self.shoot = function () {
		var bullet = new PlayerBullet();
		bullet.x = self.x;
		bullet.y = self.y - 50;
		bullet.damage = self.damage;
		playerBullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	};
	self.takeDamage = function () {
		self.health--;
		LK.effects.flashObject(self, 0xFF0000, 500);
		LK.getSound('hit').play();
		updateHealthDisplay();
		if (self.health <= 0) {
			LK.showGameOver();
		}
	};
	self.heal = function () {
		if (self.health < self.maxHealth) {
			self.health++;
			updateHealthDisplay();
			LK.effects.flashObject(self, 0x00FF00, 500);
		}
	};
	return self;
});
var PlayerBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 12;
	self.damage = 1;
	self.update = function () {
		self.y -= self.speed;
	};
	return self;
});
var Santa = Container.expand(function () {
	var self = Container.call(this);
	var santaGraphics = self.attachAsset('santa', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.captured = false;
	return self;
});
var Snowflake = Container.expand(function () {
	var self = Container.call(this);
	var snowGraphics = self.attachAsset('snowflake', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 3 + 1;
	self.drift = Math.random() * 2 - 1;
	self.update = function () {
		self.y += self.speed;
		self.x += self.drift;
		// Reset when off screen
		if (self.y > 2800) {
			self.y = -50;
			self.x = Math.random() * 2048;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Game variables
var player;
var elves = [];
var playerBullets = [];
var elfBullets = [];
var coins = [];
var snowflakes = [];
var castle;
var santa;
var money = 0;
var elvesKilled = 0;
var gamePhase = 'combat'; // 'combat', 'castle', 'victory'
var dragTarget = null;
var shopVisible = false;
var healthPotionCost = 50;
var strengthUpgradeCost = 100;
var speedPotionCost = 75;
var gameTimer = 60 * 60; // 60 seconds at 60 FPS
var santaSpawned = false;
var gameStarted = false;
var gamePaused = false;
// UI Elements
var moneyText = new Text2('Money: $0', {
	size: 60,
	fill: 0xFFD700
});
moneyText.anchor.set(1, 0);
moneyText.x = -20;
LK.gui.topRight.addChild(moneyText);
var healthText = new Text2('Health: 3/3', {
	size: 60,
	fill: 0xFF1744
});
healthText.anchor.set(0, 0);
healthText.x = 120; // Move away from top-left menu icon
LK.gui.top.addChild(healthText);
var timerText = new Text2('Time: 60s', {
	size: 60,
	fill: 0xFFFFFF
});
timerText.anchor.set(0.5, 0);
LK.gui.top.addChild(timerText);
var shopButton = game.addChild(LK.getAsset('shopButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1750,
	y: 2550,
	scaleX: 2.5,
	scaleY: 2.5
}));
var shopText = new Text2('SHOP', {
	size: 70,
	fill: 0xFFFFFF
});
shopText.anchor.set(0.5, 0.5);
shopText.x = shopButton.x;
shopText.y = shopButton.y;
game.addChild(shopText);
// Shop background (initially hidden)
var shopBackground = game.addChild(LK.getAsset('shopBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1366,
	scaleX: 1.5,
	scaleY: 1.5
}));
shopBackground.visible = false;
// Start button
var startButton = game.addChild(LK.getAsset('shopButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1366,
	scaleX: 3,
	scaleY: 3
}));
var startText = new Text2('START', {
	size: 80,
	fill: 0xFFFFFF
});
startText.anchor.set(0.5, 0.5);
startText.x = startButton.x;
startText.y = startButton.y;
game.addChild(startText);
// Shop items (initially hidden)
var healthPotionButton = game.addChild(LK.getAsset('healthPotion', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1366,
	scaleX: 2,
	scaleY: 2
}));
healthPotionButton.visible = false;
var strengthUpgradeButton = game.addChild(LK.getAsset('strengthUpgrade', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024 + 200,
	y: 1366,
	scaleX: 2,
	scaleY: 2
}));
strengthUpgradeButton.visible = false;
var speedPotionButton = game.addChild(LK.getAsset('healthPotion', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024 - 200,
	y: 1366,
	scaleX: 2,
	scaleY: 2,
	tint: 0x00FFFF
}));
speedPotionButton.visible = false;
var healthPotionText = new Text2('Health Potion\n$' + healthPotionCost, {
	size: 60,
	fill: 0xFFFFFF
});
healthPotionText.anchor.set(0.5, 0.5);
healthPotionText.x = healthPotionButton.x;
healthPotionText.y = healthPotionButton.y + 120;
healthPotionText.visible = false;
game.addChild(healthPotionText);
var strengthUpgradeText = new Text2('Strength Upgrade\n$' + strengthUpgradeCost, {
	size: 60,
	fill: 0xFFFFFF
});
strengthUpgradeText.anchor.set(0.5, 0.5);
strengthUpgradeText.x = strengthUpgradeButton.x;
strengthUpgradeText.y = strengthUpgradeButton.y + 120;
strengthUpgradeText.visible = false;
game.addChild(strengthUpgradeText);
var speedPotionText = new Text2('Speed Potion\n$' + speedPotionCost, {
	size: 60,
	fill: 0xFFFFFF
});
speedPotionText.anchor.set(0.5, 0.5);
speedPotionText.x = speedPotionButton.x;
speedPotionText.y = speedPotionButton.y + 120;
speedPotionText.visible = false;
game.addChild(speedPotionText);
// Initialize player
player = game.addChild(new Player());
player.x = 1024;
player.y = 2400;
// Create snow effect
for (var i = 0; i < 50; i++) {
	var snowflake = new Snowflake();
	snowflake.x = Math.random() * 2048;
	snowflake.y = Math.random() * 2732;
	snowflakes.push(snowflake);
	game.addChild(snowflake);
}
// Functions
function updateMoneyDisplay() {
	moneyText.setText('Money: $' + money);
}
function updateHealthDisplay() {
	healthText.setText('Health: ' + player.health + '/' + player.maxHealth);
}
function updateTimerDisplay() {
	var seconds = Math.ceil(gameTimer / 60);
	timerText.setText('Time: ' + seconds + 's');
}
function spawnElf() {
	var elf = new Elf();
	elf.x = Math.random() * 1848 + 100;
	elf.y = Math.random() * 500 + 100;
	elves.push(elf);
	game.addChild(elf);
}
function toggleShop() {
	shopVisible = !shopVisible;
	gamePaused = shopVisible;
	shopBackground.visible = shopVisible;
	healthPotionButton.visible = shopVisible;
	strengthUpgradeButton.visible = shopVisible;
	speedPotionButton.visible = shopVisible;
	healthPotionText.visible = shopVisible;
	strengthUpgradeText.visible = shopVisible;
	speedPotionText.visible = shopVisible;
}
function buyHealthPotion() {
	if (money >= healthPotionCost && player.health < player.maxHealth) {
		money -= healthPotionCost;
		player.heal();
		updateMoneyDisplay();
		LK.getSound('purchase').play();
	}
}
function buyStrengthUpgrade() {
	if (money >= strengthUpgradeCost) {
		money -= strengthUpgradeCost;
		player.damage++;
		strengthUpgradeCost += 50; // Increase cost for next upgrade
		strengthUpgradeText.setText('Strength Upgrade\n$' + strengthUpgradeCost);
		updateMoneyDisplay();
		LK.getSound('purchase').play();
	}
}
function buySpeedPotion() {
	if (money >= speedPotionCost) {
		money -= speedPotionCost;
		gameTimer = Math.max(gameTimer - 600, 0); // Remove 10 seconds (600 frames)
		updateMoneyDisplay();
		LK.getSound('purchase').play();
	}
}
function checkVictoryCondition() {
	if (elvesKilled >= 20 && gamePhase === 'combat') {
		gamePhase = 'castle';
		// Clear remaining elves and bullets
		for (var i = elves.length - 1; i >= 0; i--) {
			elves[i].destroy();
		}
		elves = [];
		for (var j = elfBullets.length - 1; j >= 0; j--) {
			elfBullets[j].destroy();
		}
		elfBullets = [];
		// Create castle
		castle = game.addChild(new Castle());
		castle.x = 1024;
		castle.y = 800;
		// Create Santa
		santa = game.addChild(new Santa());
		santa.x = 1024;
		santa.y = 600;
	}
}
// Event handlers
shopButton.down = function (x, y, obj) {
	toggleShop();
};
healthPotionButton.down = function (x, y, obj) {
	buyHealthPotion();
};
strengthUpgradeButton.down = function (x, y, obj) {
	buyStrengthUpgrade();
};
speedPotionButton.down = function (x, y, obj) {
	buySpeedPotion();
};
startButton.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		startButton.visible = false;
		startText.visible = false;
	}
};
game.down = function (x, y, obj) {
	dragTarget = player;
	player.isDragging = true;
};
game.move = function (x, y, obj) {
	if (dragTarget === player && player.isDragging) {
		player.x = x;
		player.y = y;
		// Keep player in bounds
		if (player.x < 50) player.x = 50;
		if (player.x > 1998) player.x = 1998;
		if (player.y < 50) player.y = 50;
		if (player.y > 2682) player.y = 2682;
	}
};
game.up = function (x, y, obj) {
	dragTarget = null;
	if (player) player.isDragging = false;
};
// Main game update
game.update = function () {
	// Don't update game if not started or paused
	if (!gameStarted || gamePaused) {
		return;
	}
	// Update timer
	if (gameTimer > 0) {
		gameTimer--;
		updateTimerDisplay();
	}
	// Spawn Santa when timer reaches 0
	if (gameTimer <= 0 && !santaSpawned && gamePhase === 'combat') {
		santaSpawned = true;
		gamePhase = 'castle';
		// Clear remaining elves and bullets
		for (var i = elves.length - 1; i >= 0; i--) {
			elves[i].destroy();
		}
		elves = [];
		for (var j = elfBullets.length - 1; j >= 0; j--) {
			elfBullets[j].destroy();
		}
		elfBullets = [];
		// Create castle with animation
		castle = game.addChild(new Castle());
		castle.x = 1024;
		castle.y = 800;
		castle.alpha = 0;
		tween(castle, {
			alpha: 1
		}, {
			duration: 1000
		});
		// Create Santa with animation
		santa = game.addChild(new Santa());
		santa.x = 1024;
		santa.y = 600;
		santa.alpha = 0;
		tween(santa, {
			alpha: 1
		}, {
			duration: 1500
		});
	}
	// Spawn elves periodically during combat phase
	if (gamePhase === 'combat' && LK.ticks % 120 === 0 && elves.length < 6) {
		spawnElf();
	}
	// Update player bullets
	for (var i = playerBullets.length - 1; i >= 0; i--) {
		var bullet = playerBullets[i];
		if (bullet.y < -50) {
			bullet.destroy();
			playerBullets.splice(i, 1);
			continue;
		}
		// Check collision with elves
		for (var j = elves.length - 1; j >= 0; j--) {
			if (bullet.intersects(elves[j])) {
				elves[j].takeDamage(bullet.damage);
				bullet.destroy();
				playerBullets.splice(i, 1);
				break;
			}
		}
	}
	// Update elf bullets
	for (var k = elfBullets.length - 1; k >= 0; k--) {
		var elfBullet = elfBullets[k];
		if (elfBullet.y > 2782) {
			elfBullet.destroy();
			elfBullets.splice(k, 1);
			continue;
		}
		// Check collision with player
		if (elfBullet.intersects(player)) {
			player.takeDamage();
			elfBullet.destroy();
			elfBullets.splice(k, 1);
		}
	}
	// Update coins
	for (var l = coins.length - 1; l >= 0; l--) {
		var coin = coins[l];
		if (coin.intersects(player)) {
			money += coin.value;
			updateMoneyDisplay();
			LK.getSound('coin').play();
			coin.destroy();
			coins.splice(l, 1);
		}
	}
	// Check collision with elves
	for (var m = elves.length - 1; m >= 0; m--) {
		if (elves[m].intersects(player)) {
			player.takeDamage();
			elves[m].die();
		}
	}
	// Castle phase - check if player reaches Santa
	if (gamePhase === 'castle' && santa && player.intersects(santa)) {
		gamePhase = 'victory';
		LK.showYouWin();
	}
	checkVictoryCondition();
};

===================================================================
--- original.js
+++ change.js
@@ -224,8 +224,10 @@
 var strengthUpgradeCost = 100;
 var speedPotionCost = 75;
 var gameTimer = 60 * 60; // 60 seconds at 60 FPS
 var santaSpawned = false;
+var gameStarted = false;
+var gamePaused = false;
 // UI Elements
 var moneyText = new Text2('Money: $0', {
 	size: 60,
 	fill: 0xFFD700
@@ -261,8 +263,35 @@
 shopText.anchor.set(0.5, 0.5);
 shopText.x = shopButton.x;
 shopText.y = shopButton.y;
 game.addChild(shopText);
+// Shop background (initially hidden)
+var shopBackground = game.addChild(LK.getAsset('shopBackground', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 1024,
+	y: 1366,
+	scaleX: 1.5,
+	scaleY: 1.5
+}));
+shopBackground.visible = false;
+// Start button
+var startButton = game.addChild(LK.getAsset('shopButton', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 1024,
+	y: 1366,
+	scaleX: 3,
+	scaleY: 3
+}));
+var startText = new Text2('START', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+startText.anchor.set(0.5, 0.5);
+startText.x = startButton.x;
+startText.y = startButton.y;
+game.addChild(startText);
 // Shop items (initially hidden)
 var healthPotionButton = game.addChild(LK.getAsset('healthPotion', {
 	anchorX: 0.5,
 	anchorY: 0.5,
@@ -349,8 +378,10 @@
 	game.addChild(elf);
 }
 function toggleShop() {
 	shopVisible = !shopVisible;
+	gamePaused = shopVisible;
+	shopBackground.visible = shopVisible;
 	healthPotionButton.visible = shopVisible;
 	strengthUpgradeButton.visible = shopVisible;
 	speedPotionButton.visible = shopVisible;
 	healthPotionText.visible = shopVisible;
@@ -417,8 +448,15 @@
 };
 speedPotionButton.down = function (x, y, obj) {
 	buySpeedPotion();
 };
+startButton.down = function (x, y, obj) {
+	if (!gameStarted) {
+		gameStarted = true;
+		startButton.visible = false;
+		startText.visible = false;
+	}
+};
 game.down = function (x, y, obj) {
 	dragTarget = player;
 	player.isDragging = true;
 };
@@ -438,8 +476,12 @@
 	if (player) player.isDragging = false;
 };
 // Main game update
 game.update = function () {
+	// Don't update game if not started or paused
+	if (!gameStarted || gamePaused) {
+		return;
+	}
 	// Update timer
 	if (gameTimer > 0) {
 		gameTimer--;
 		updateTimerDisplay();