/**** 
* 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 = 25;
	self.targetX = 0;
	self.targetY = 0;
	self.directionX = 0;
	self.directionY = 0;
	self.setTarget = function (x, y) {
		self.targetX = x;
		self.targetY = y;
		var dx = x - self.x;
		var dy = y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		self.directionX = dx / distance;
		self.directionY = dy / distance;
	};
	self.update = function () {
		self.x += self.directionX * self.speed;
		self.y += self.directionY * self.speed;
	};
	return self;
});
var Cover = Container.expand(function () {
	var self = Container.call(this);
	var coverGraphics = self.attachAsset('cover', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	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 = 20;
	self.speed = 2;
	self.damage = 15;
	self.lastAttack = 0;
	self.attackCooldown = 120; // 2 seconds at 60fps
	self.targetX = Math.random() * 2048;
	self.targetY = Math.random() * 2732;
	self.changeTargetTime = LK.ticks + Math.random() * 180; // Change direction every 1-3 seconds
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			return true; // enemy died
		}
		return false;
	};
	self.update = function () {
		// Change movement target periodically
		if (LK.ticks > self.changeTargetTime) {
			self.targetX = Math.random() * 2048;
			self.targetY = Math.random() * 2732;
			self.changeTargetTime = LK.ticks + Math.random() * 180;
		}
		// Move towards target
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 10) {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
		// Attack player if close enough
		var playerDistance = Math.sqrt((player.x - self.x) * (player.x - self.x) + (player.y - self.y) * (player.y - self.y));
		if (playerDistance < 200 && LK.ticks - self.lastAttack > self.attackCooldown) {
			self.lastAttack = LK.ticks;
			var playerDied = player.takeDamage(self.damage);
			if (playerDied) {
				gameOver = true;
			}
			LK.getSound('playerHit').play();
			LK.effects.flashObject(player, 0xff0000, 500);
		}
	};
	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.ammo = 30;
	self.maxAmmo = 30;
	self.lastShot = 0;
	self.shootCooldown = 200; // milliseconds
	self.ammoRegenTime = 0;
	self.ammoRegenDelay = 2000; // 2 seconds
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health <= 0) {
			self.health = 0;
			return true; // player died
		}
		return false;
	};
	self.canShoot = function () {
		return self.ammo > 0 && LK.ticks - self.lastShot > self.shootCooldown / 16.67;
	};
	self.shoot = function () {
		if (self.canShoot()) {
			self.ammo--;
			self.lastShot = LK.ticks;
			self.ammoRegenTime = LK.ticks + self.ammoRegenDelay / 16.67;
			return true;
		}
		return false;
	};
	self.update = function () {
		// Regenerate ammo after delay
		if (self.ammo < self.maxAmmo && LK.ticks > self.ammoRegenTime) {
			if (LK.ticks % 30 === 0) {
				// Regenerate every half second
				self.ammo++;
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2d4a2b
});

/**** 
* Game Code
****/ 
var player;
var enemies = [];
var bullets = [];
var covers = [];
var dragNode = null;
var gameOver = false;
var currentWave = 1;
var enemiesKilled = 0;
var waveEnemiesCount = 3;
var waveInProgress = false;
// UI Elements
var healthBarBg = LK.getAsset('healthBar', {
	x: 100,
	y: 100,
	scaleX: 1,
	scaleY: 1,
	alpha: 0.3
});
var healthBarFill = LK.getAsset('healthBar', {
	x: 100,
	y: 100,
	scaleX: 1,
	scaleY: 1
});
var ammoBarBg = LK.getAsset('ammoBar', {
	x: 100,
	y: 150,
	scaleX: 1,
	scaleY: 1,
	alpha: 0.3
});
var ammoBarFill = LK.getAsset('ammoBar', {
	x: 100,
	y: 150,
	scaleX: 1,
	scaleY: 1
});
game.addChild(healthBarBg);
game.addChild(healthBarFill);
game.addChild(ammoBarBg);
game.addChild(ammoBarFill);
var waveText = new Text2('Wave: 1', {
	size: 80,
	fill: 0xFFFFFF
});
waveText.anchor.set(0.5, 0);
LK.gui.top.addChild(waveText);
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(1, 0);
LK.gui.topRight.addChild(scoreText);
// Add mobile control hints
var controlHint = new Text2('Drag player to move • Tap to shoot', {
	size: 40,
	fill: 0xCCCCCC
});
controlHint.anchor.set(0.5, 1);
LK.gui.bottom.addChild(controlHint);
// Position control hint slightly above bottom
controlHint.y = -50;
// Initialize player
player = game.addChild(new Player());
player.x = 1024;
player.y = 2000;
// Create cover objects
for (var i = 0; i < 12; i++) {
	var cover = game.addChild(new Cover());
	// Create 3 rows of 4 covers with more spacing and random positioning
	var row = Math.floor(i / 4);
	var col = i % 4;
	cover.x = 300 + col * 500 + Math.random() * 150 - 75; // More spacing between columns with random offset
	cover.y = 700 + row * 650 + Math.random() * 250 - 125; // More spacing between rows with random offset
	covers.push(cover);
}
function spawnWave() {
	waveInProgress = true;
	var enemiesToSpawn = waveEnemiesCount * 2 + (currentWave - 1) * 2;
	for (var i = 0; i < enemiesToSpawn; i++) {
		var enemy = game.addChild(new Enemy());
		enemy.x = Math.random() * 2048;
		enemy.y = Math.random() * 800; // Spawn in upper part of screen
		enemy.health += (currentWave - 1) * 5; // Increase health each wave
		enemy.speed += (currentWave - 1) * 0.5; // Increase speed each wave
		enemies.push(enemy);
	}
	waveText.setText('Wave: ' + currentWave);
}
function updateUI() {
	// Update health bar
	var healthPercent = player.health / player.maxHealth;
	healthBarFill.scaleX = healthPercent;
	// Update ammo bar
	var ammoPercent = player.ammo / player.maxAmmo;
	ammoBarFill.scaleX = ammoPercent;
	// Update score
	scoreText.setText('Score: ' + LK.getScore());
}
function handleMove(x, y, obj) {
	// Update mouse position for keyboard shooting
	mousePosition.x = x;
	mousePosition.y = y;
	if (dragNode && !gameOver) {
		// Store original position
		var originalX = dragNode.x;
		var originalY = dragNode.y;
		// Try to move to new position
		dragNode.x = x;
		dragNode.y = y;
		// Check collision with cover objects
		var collisionDetected = false;
		for (var i = 0; i < covers.length; i++) {
			if (dragNode.intersects(covers[i])) {
				collisionDetected = true;
				break;
			}
		}
		// Keep player within screen bounds
		if (dragNode.x < 87.5 || dragNode.x > 1960.5 || dragNode.y < 87.5 || dragNode.y > 2644.5) {
			collisionDetected = true;
		}
		// If collision detected, revert to original position
		if (collisionDetected) {
			dragNode.x = originalX;
			dragNode.y = originalY;
		}
	}
}
game.move = handleMove;
// Keyboard state tracking
var keysPressed = {};
var mousePosition = {
	x: 1024,
	y: 1366
};
// Add keyboard event listeners
LK.on('keydown', function (event) {
	keysPressed[event.key.toLowerCase()] = true;
});
LK.on('keyup', function (event) {
	keysPressed[event.key.toLowerCase()] = false;
});
// Track mouse position for shooting
LK.on('mousemove', function (event) {
	mousePosition.x = event.x;
	mousePosition.y = event.y;
});
game.down = function (x, y, obj) {
	if (gameOver) return;
	// Update mouse position for shooting
	mousePosition.x = x;
	mousePosition.y = y;
	// Check if clicking on player for dragging
	var playerDistance = Math.sqrt((player.x - x) * (player.x - x) + (player.y - y) * (player.y - y));
	if (playerDistance < 50) {
		dragNode = player;
		handleMove(x, y, obj);
	} else {
		// Shoot at clicked location
		if (player.shoot()) {
			var bullet = game.addChild(new Bullet());
			bullet.x = player.x;
			bullet.y = player.y;
			bullet.setTarget(x, y);
			bullets.push(bullet);
			LK.getSound('shoot').play();
		}
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Start first wave
spawnWave();
game.update = function () {
	if (gameOver) return;
	// Handle keyboard movement (WASD)
	var moveSpeed = 8;
	var originalX = player.x;
	var originalY = player.y;
	var moved = false;
	if (keysPressed['w'] || keysPressed['arrowup']) {
		player.y -= moveSpeed;
		moved = true;
	}
	if (keysPressed['s'] || keysPressed['arrowdown']) {
		player.y += moveSpeed;
		moved = true;
	}
	if (keysPressed['a'] || keysPressed['arrowleft']) {
		player.x -= moveSpeed;
		moved = true;
	}
	if (keysPressed['d'] || keysPressed['arrowright']) {
		player.x += moveSpeed;
		moved = true;
	}
	// Check collision with cover objects if player moved
	if (moved) {
		var collisionDetected = false;
		for (var i = 0; i < covers.length; i++) {
			if (player.intersects(covers[i])) {
				collisionDetected = true;
				break;
			}
		}
		// Keep player within screen bounds
		if (player.x < 87.5 || player.x > 1960.5 || player.y < 87.5 || player.y > 2644.5) {
			collisionDetected = true;
		}
		// If collision detected, revert to original position
		if (collisionDetected) {
			player.x = originalX;
			player.y = originalY;
		}
	}
	// Handle keyboard shooting (spacebar)
	if (keysPressed[' '] && player.canShoot()) {
		if (player.shoot()) {
			var bullet = game.addChild(new Bullet());
			bullet.x = player.x;
			bullet.y = player.y;
			bullet.setTarget(mousePosition.x, mousePosition.y);
			bullets.push(bullet);
			LK.getSound('shoot').play();
		}
	}
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		// Check if bullet is off screen
		if (bullet.x < -50 || bullet.x > 2098 || bullet.y < -50 || bullet.y > 2782) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check bullet-enemy collisions
		var bulletHit = false;
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				var enemyDied = enemy.takeDamage(bullet.damage);
				if (enemyDied) {
					LK.setScore(LK.getScore() + 10);
					enemiesKilled++;
					LK.effects.flashObject(enemy, 0xffffff, 300);
					enemy.destroy();
					enemies.splice(j, 1);
				}
				LK.getSound('enemyHit').play();
				bullet.destroy();
				bullets.splice(i, 1);
				bulletHit = true;
				break;
			}
		}
		if (bulletHit) continue;
		// Check bullet-cover collisions
		for (var k = covers.length - 1; k >= 0; k--) {
			var cover = covers[k];
			if (bullet.intersects(cover)) {
				bullet.destroy();
				bullets.splice(i, 1);
				bulletHit = true;
				break;
			}
		}
		if (bulletHit) continue;
	}
	// Check if wave is complete
	if (waveInProgress && enemies.length === 0) {
		waveInProgress = false;
		currentWave++;
		// Restore some health and ammo between waves
		player.health = Math.min(player.maxHealth, player.health + 20);
		player.ammo = Math.min(player.maxAmmo, player.ammo + 10);
		// Start next wave after delay
		LK.setTimeout(function () {
			if (!gameOver) {
				spawnWave();
			}
		}, 2000);
	}
	// Check for game over conditions
	if (player.health <= 0) {
		gameOver = true;
		LK.showGameOver();
	}
	// Check for win condition (survive 10 waves)
	if (currentWave > 10 && enemies.length === 0) {
		LK.showYouWin();
	}
	updateUI();
};

===================================================================
--- original.js
+++ change.js
@@ -199,8 +199,17 @@
 	fill: 0xFFFFFF
 });
 scoreText.anchor.set(1, 0);
 LK.gui.topRight.addChild(scoreText);
+// Add mobile control hints
+var controlHint = new Text2('Drag player to move • Tap to shoot', {
+	size: 40,
+	fill: 0xCCCCCC
+});
+controlHint.anchor.set(0.5, 1);
+LK.gui.bottom.addChild(controlHint);
+// Position control hint slightly above bottom
+controlHint.y = -50;
 // Initialize player
 player = game.addChild(new Player());
 player.x = 1024;
 player.y = 2000;
@@ -237,8 +246,11 @@
 	// Update score
 	scoreText.setText('Score: ' + LK.getScore());
 }
 function handleMove(x, y, obj) {
+	// Update mouse position for keyboard shooting
+	mousePosition.x = x;
+	mousePosition.y = y;
 	if (dragNode && !gameOver) {
 		// Store original position
 		var originalX = dragNode.x;
 		var originalY = dragNode.y;
@@ -252,18 +264,43 @@
 				collisionDetected = true;
 				break;
 			}
 		}
+		// Keep player within screen bounds
+		if (dragNode.x < 87.5 || dragNode.x > 1960.5 || dragNode.y < 87.5 || dragNode.y > 2644.5) {
+			collisionDetected = true;
+		}
 		// If collision detected, revert to original position
 		if (collisionDetected) {
 			dragNode.x = originalX;
 			dragNode.y = originalY;
 		}
 	}
 }
 game.move = handleMove;
+// Keyboard state tracking
+var keysPressed = {};
+var mousePosition = {
+	x: 1024,
+	y: 1366
+};
+// Add keyboard event listeners
+LK.on('keydown', function (event) {
+	keysPressed[event.key.toLowerCase()] = true;
+});
+LK.on('keyup', function (event) {
+	keysPressed[event.key.toLowerCase()] = false;
+});
+// Track mouse position for shooting
+LK.on('mousemove', function (event) {
+	mousePosition.x = event.x;
+	mousePosition.y = event.y;
+});
 game.down = function (x, y, obj) {
 	if (gameOver) return;
+	// Update mouse position for shooting
+	mousePosition.x = x;
+	mousePosition.y = y;
 	// Check if clicking on player for dragging
 	var playerDistance = Math.sqrt((player.x - x) * (player.x - x) + (player.y - y) * (player.y - y));
 	if (playerDistance < 50) {
 		dragNode = player;
@@ -286,8 +323,59 @@
 // Start first wave
 spawnWave();
 game.update = function () {
 	if (gameOver) return;
+	// Handle keyboard movement (WASD)
+	var moveSpeed = 8;
+	var originalX = player.x;
+	var originalY = player.y;
+	var moved = false;
+	if (keysPressed['w'] || keysPressed['arrowup']) {
+		player.y -= moveSpeed;
+		moved = true;
+	}
+	if (keysPressed['s'] || keysPressed['arrowdown']) {
+		player.y += moveSpeed;
+		moved = true;
+	}
+	if (keysPressed['a'] || keysPressed['arrowleft']) {
+		player.x -= moveSpeed;
+		moved = true;
+	}
+	if (keysPressed['d'] || keysPressed['arrowright']) {
+		player.x += moveSpeed;
+		moved = true;
+	}
+	// Check collision with cover objects if player moved
+	if (moved) {
+		var collisionDetected = false;
+		for (var i = 0; i < covers.length; i++) {
+			if (player.intersects(covers[i])) {
+				collisionDetected = true;
+				break;
+			}
+		}
+		// Keep player within screen bounds
+		if (player.x < 87.5 || player.x > 1960.5 || player.y < 87.5 || player.y > 2644.5) {
+			collisionDetected = true;
+		}
+		// If collision detected, revert to original position
+		if (collisionDetected) {
+			player.x = originalX;
+			player.y = originalY;
+		}
+	}
+	// Handle keyboard shooting (spacebar)
+	if (keysPressed[' '] && player.canShoot()) {
+		if (player.shoot()) {
+			var bullet = game.addChild(new Bullet());
+			bullet.x = player.x;
+			bullet.y = player.y;
+			bullet.setTarget(mousePosition.x, mousePosition.y);
+			bullets.push(bullet);
+			LK.getSound('shoot').play();
+		}
+	}
 	// Update bullets
 	for (var i = bullets.length - 1; i >= 0; i--) {
 		var bullet = bullets[i];
 		// Check if bullet is off screen