/**** 
* 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 = 12;
	self.directionX = 0;
	self.directionY = 0;
	self.update = function () {
		self.x += self.directionX * self.speed;
		self.y += self.directionY * self.speed;
	};
	return self;
});
var Monster = Container.expand(function () {
	var self = Container.call(this);
	var monsterGraphics = self.attachAsset('monster', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 2;
	self.speed = 2;
	self.damage = 20;
	self.update = function () {
		if (player) {
			var dx = player.x - self.x;
			var dy = player.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				self.x += dx / distance * self.speed;
				self.y += dy / distance * 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 = 100;
	self.maxHealth = 100;
	self.speed = 8;
	self.directionX = 1;
	self.directionY = 0;
	self.updateDirection = function (dx, dy) {
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			self.directionX = dx / distance;
			self.directionY = dy / distance;
			playerGraphics.rotation = Math.atan2(dy, dx);
		}
	};
	return self;
});
var ShootButton = Container.expand(function () {
	var self = Container.call(this);
	var buttonGraphics = self.attachAsset('shootButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.down = function (x, y, obj) {
		shootBullet();
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c3e50
});

/**** 
* Game Code
****/ 
var player;
var bullets = [];
var monsters = [];
var dragNode = null;
var arena;
var shootButton;
var healthBar;
var lastMonsterSpawn = 0;
var monsterSpawnRate = 120;
var waveNumber = 1;
var monstersPerWave = 3;
var monstersSpawned = 0;
var monstersKilled = 0;
// Create arena
arena = game.addChild(LK.getAsset('arena', {
	anchorX: 0.5,
	anchorY: 0.5
}));
arena.x = 2048 / 2;
arena.y = 2732 / 2;
// Create player
player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 / 2;
// Create shoot button
shootButton = new ShootButton();
shootButton.x = 2048 - 100;
shootButton.y = 2732 - 100;
game.addChild(shootButton);
// Create health bar
healthBar = new Text2('Health: 100', {
	size: 60,
	fill: 0xFFFFFF
});
healthBar.anchor.set(0, 0);
LK.gui.topLeft.addChild(healthBar);
healthBar.x = 120;
healthBar.y = 20;
// Create score display
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
// Create wave display
var waveText = new Text2('Wave: 1', {
	size: 50,
	fill: 0xFFFFFF
});
waveText.anchor.set(1, 0);
LK.gui.topRight.addChild(waveText);
waveText.x = -20;
waveText.y = 20;
function shootBullet() {
	var bullet = new Bullet();
	bullet.x = player.x;
	bullet.y = player.y;
	bullet.directionX = player.directionX;
	bullet.directionY = player.directionY;
	bullets.push(bullet);
	game.addChild(bullet);
	LK.getSound('shoot').play();
}
function spawnMonster() {
	var monster = new Monster();
	var angle = Math.random() * Math.PI * 2;
	var spawnRadius = 900;
	monster.x = 2048 / 2 + Math.cos(angle) * spawnRadius;
	monster.y = 2732 / 2 + Math.sin(angle) * spawnRadius;
	monsters.push(monster);
	game.addChild(monster);
	monstersSpawned++;
}
function checkCollisions() {
	// Bullet vs Monster collisions
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		var bulletHit = false;
		for (var j = monsters.length - 1; j >= 0; j--) {
			var monster = monsters[j];
			if (bullet.intersects(monster)) {
				monster.health--;
				bullet.destroy();
				bullets.splice(i, 1);
				bulletHit = true;
				if (monster.health <= 0) {
					LK.setScore(LK.getScore() + 10);
					scoreText.setText('Score: ' + LK.getScore());
					// Flash monster position before destroying
					LK.effects.flashObject(monster, 0xffff00, 200);
					monster.destroy();
					monsters.splice(j, 1);
					monstersKilled++;
					LK.getSound('hit').play();
				}
				break;
			}
		}
		if (bulletHit) continue;
		// Remove bullets that are off screen
		if (bullet.x < -100 || bullet.x > 2148 || bullet.y < -100 || bullet.y > 2832) {
			bullet.destroy();
			bullets.splice(i, 1);
		}
	}
	// Monster vs Player collisions
	for (var k = monsters.length - 1; k >= 0; k--) {
		var monster = monsters[k];
		if (player.intersects(monster)) {
			player.health -= monster.damage;
			healthBar.setText('Health: ' + Math.max(0, player.health));
			if (player.health <= 0) {
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
				return;
			}
			// Flash player red
			LK.effects.flashObject(player, 0xff0000, 500);
			LK.getSound('playerHit').play();
			// Remove monster after hit
			monster.destroy();
			monsters.splice(k, 1);
			monstersKilled++;
		}
	}
}
function updateWave() {
	if (monstersKilled >= monstersPerWave && monsters.length === 0) {
		if (waveNumber >= 5) {
			LK.effects.flashScreen(0x00ff00, 1000);
			LK.showYouWin();
			return;
		}
		waveNumber++;
		waveText.setText('Wave: ' + waveNumber);
		// Increase difficulty
		monstersPerWave += 2;
		monsterSpawnRate = Math.max(60, monsterSpawnRate - 10);
		// Reset counters
		monstersSpawned = 0;
		monstersKilled = 0;
	}
}
function handleMove(x, y, obj) {
	if (dragNode) {
		// Keep player within arena bounds
		var centerX = 2048 / 2;
		var centerY = 2732 / 2;
		var maxRadius = 750;
		var dx = x - centerX;
		var dy = y - centerY;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > maxRadius) {
			dx = dx / distance * maxRadius;
			dy = dy / distance * maxRadius;
		}
		var newX = centerX + dx;
		var newY = centerY + dy;
		// Update player direction based on movement
		var moveDx = newX - dragNode.x;
		var moveDy = newY - dragNode.y;
		if (Math.abs(moveDx) > 1 || Math.abs(moveDy) > 1) {
			dragNode.updateDirection(moveDx, moveDy);
		}
		dragNode.x = newX;
		dragNode.y = newY;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	dragNode = player;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Add keyboard support for desktop
LK.on('keydown', function (event) {
	if (event.keyCode === 32) {
		// Space key
		shootBullet();
	}
});
game.update = function () {
	// Spawn monsters
	if (monstersSpawned < monstersPerWave && LK.ticks - lastMonsterSpawn > monsterSpawnRate) {
		spawnMonster();
		lastMonsterSpawn = LK.ticks;
	}
	// Check collisions
	checkCollisions();
	// Update wave
	updateWave();
	// Update health bar color based on health
	var healthPercent = player.health / player.maxHealth;
	if (healthPercent > 0.6) {
		healthBar.tint = 0x00ff00;
	} else if (healthPercent > 0.3) {
		healthBar.tint = 0xffff00;
	} else {
		healthBar.tint = 0xff0000;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -113,9 +113,9 @@
 // Create shoot button
 shootButton = new ShootButton();
 shootButton.x = 2048 - 100;
 shootButton.y = 2732 - 100;
-LK.gui.bottomRight.addChild(shootButton);
+game.addChild(shootButton);
 // Create health bar
 healthBar = new Text2('Health: 100', {
 	size: 60,
 	fill: 0xFFFFFF
@@ -269,12 +269,8 @@
 		// Space key
 		shootBullet();
 	}
 });
-// Add mobile touch shooting support
-shootButton.down = function (x, y, obj) {
-	shootBullet();
-};
 game.update = function () {
 	// Spawn monsters
 	if (monstersSpawned < monstersPerWave && LK.ticks - lastMonsterSpawn > monsterSpawnRate) {
 		spawnMonster();