/**** 
* 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 = 2;
	self.update = function () {
		self.y -= self.speed;
	};
	return self;
});
var Mango = Container.expand(function () {
	var self = Container.call(this);
	var mangoGraphics = self.attachAsset('mango', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.maxHealth = 100;
	self.health = self.maxHealth;
	self.speed = 2;
	self.coinValue = 1;
	self.lastHealth = self.health;
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health < 0) self.health = 0;
	};
	self.update = function () {
		self.y += self.speed;
		// Flash red when taking damage
		if (self.lastHealth > self.health) {
			LK.effects.flashObject(self, 0xff0000, 300);
		}
		self.lastHealth = self.health;
	};
	return self;
});
var Mustard = Container.expand(function () {
	var self = Container.call(this);
	var mustardGraphics = self.attachAsset('mustard', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.maxHealth = 200;
	self.health = self.maxHealth;
	self.speed = 1.5;
	self.coinValue = 2;
	self.lastHealth = self.health;
	self.takeDamage = function (damage) {
		self.health -= damage;
		if (self.health < 0) self.health = 0;
	};
	self.update = function () {
		self.y += self.speed;
		// Flash red when taking damage
		if (self.lastHealth > self.health) {
			LK.effects.flashObject(self, 0xff0000, 300);
		}
		self.lastHealth = self.health;
	};
	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.moveTowards = function (targetX, targetY) {
		var deltaX = targetX - self.x;
		var deltaY = targetY - self.y;
		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
		if (distance > 5) {
			var moveX = deltaX / distance * playerSpeed;
			var moveY = deltaY / distance * playerSpeed;
			self.x += moveX;
			self.y += moveY;
		}
	};
	self.update = function () {
		// Keep player within screen bounds
		if (self.x < 40) self.x = 40;
		if (self.x > 2048 - 40) self.x = 2048 - 40;
		if (self.y < 200) self.y = 200;
		if (self.y > 2732 - 100) self.y = 2732 - 100;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var player;
var bullets = [];
var enemies = [];
var coins = 0;
var playerHealth = 100;
var gameStarted = false;
var enemySpawnTimer = 0;
var enemySpawnRate = 120; // frames between spawns
var difficultyTimer = 0;
// Movement variables
var isDragging = false;
var playerSpeed = 8;
var targetX = 0;
var targetY = 0;
// Create city background
var cityBuildings = [];
for (var i = 0; i < 12; i++) {
	var buildingType = Math.floor(Math.random() * 3) + 1;
	var building = LK.getAsset('cityBuilding' + buildingType, {
		anchorX: 0.5,
		anchorY: 1
	});
	building.x = i * 180 + 100;
	building.y = 2732;
	building.alpha = 0.3;
	game.addChild(building);
	cityBuildings.push(building);
}
// Create player
player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 - 150;
// UI Elements
var coinText = new Text2('Coins: 0', {
	size: 60,
	fill: 0xFFFFFF
});
coinText.anchor.set(0, 0);
coinText.x = 150;
coinText.y = 50;
LK.gui.topLeft.addChild(coinText);
var healthText = new Text2('Health: 100', {
	size: 60,
	fill: 0xFF0000
});
healthText.anchor.set(1, 0);
LK.gui.topRight.addChild(healthText);
// Game functions
function spawnEnemy() {
	var enemy;
	var spawnX = Math.random() * (2048 - 100) + 50;
	// 70% chance for Mango, 30% chance for Mustard
	if (Math.random() < 0.7) {
		enemy = new Mango();
	} else {
		enemy = new Mustard();
	}
	enemy.x = spawnX;
	enemy.y = -50;
	enemy.lastY = enemy.y;
	enemies.push(enemy);
	game.addChild(enemy);
}
function fireBullet(targetX, targetY) {
	var bullet = new Bullet();
	bullet.x = player.x;
	bullet.y = player.y - 40;
	bullet.lastY = bullet.y;
	// Calculate angle to target
	var deltaX = targetX - bullet.x;
	var deltaY = targetY - bullet.y;
	var angle = Math.atan2(deltaY, deltaX);
	// Set bullet direction
	bullet.velocityX = Math.cos(angle) * bullet.speed;
	bullet.velocityY = Math.sin(angle) * bullet.speed;
	// Override update to use calculated velocity
	bullet.update = function () {
		bullet.x += bullet.velocityX;
		bullet.y += bullet.velocityY;
	};
	bullets.push(bullet);
	game.addChild(bullet);
	LK.getSound('shoot').play();
}
// Event handlers
game.down = function (x, y, obj) {
	if (gameStarted) {
		// Check if touch is in top half (shooting) or bottom half (movement)
		if (y < 2732 / 2) {
			// Top half - shoot
			fireBullet(x, y);
		} else {
			// Bottom half - start movement
			isDragging = true;
			targetX = x;
			targetY = y;
		}
	} else {
		gameStarted = true;
	}
};
game.move = function (x, y, obj) {
	if (gameStarted && isDragging) {
		targetX = x;
		targetY = y;
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
// Main game loop
game.update = function () {
	if (!gameStarted) {
		return;
	}
	// Update player movement
	if (isDragging) {
		player.moveTowards(targetX, targetY);
	}
	// Spawn enemies
	enemySpawnTimer++;
	if (enemySpawnTimer >= enemySpawnRate) {
		spawnEnemy();
		enemySpawnTimer = 0;
	}
	// Increase difficulty over time
	difficultyTimer++;
	if (difficultyTimer >= 1800) {
		// Every 30 seconds
		if (enemySpawnRate > 30) {
			enemySpawnRate -= 5;
		}
		difficultyTimer = 0;
	}
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		// Remove bullets that go off screen
		if (bullet.lastY <= 2732 && (bullet.y > 2732 || bullet.y < -50 || bullet.x < -50 || bullet.x > 2098)) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		bullet.lastY = bullet.y;
	}
	// Update enemies and check collisions
	for (var j = enemies.length - 1; j >= 0; j--) {
		var enemy = enemies[j];
		// Remove enemies that reach bottom (player takes damage)
		if (enemy.lastY < 2732 && enemy.y >= 2732) {
			playerHealth -= 20;
			healthText.setText('Health: ' + playerHealth);
			LK.effects.flashScreen(0xff0000, 500);
			if (playerHealth <= 0) {
				LK.setScore(coins);
				LK.showGameOver();
				return;
			}
			enemy.destroy();
			enemies.splice(j, 1);
			continue;
		}
		// Check bullet collisions
		for (var k = bullets.length - 1; k >= 0; k--) {
			var bullet = bullets[k];
			if (bullet.intersects(enemy)) {
				enemy.takeDamage(bullet.damage);
				LK.getSound('enemyHit').play();
				// Remove bullet
				bullet.destroy();
				bullets.splice(k, 1);
				// Check if enemy is dead
				if (enemy.health <= 0) {
					coins += enemy.coinValue;
					coinText.setText('Coins: ' + coins);
					LK.getSound('enemyDeath').play();
					enemy.destroy();
					enemies.splice(j, 1);
				}
				break;
			}
		}
		enemy.lastY = enemy.y;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -76,8 +76,26 @@
 		anchorY: 0.5
 	});
 	self.health = 100;
 	self.maxHealth = 100;
+	self.moveTowards = function (targetX, targetY) {
+		var deltaX = targetX - self.x;
+		var deltaY = targetY - self.y;
+		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
+		if (distance > 5) {
+			var moveX = deltaX / distance * playerSpeed;
+			var moveY = deltaY / distance * playerSpeed;
+			self.x += moveX;
+			self.y += moveY;
+		}
+	};
+	self.update = function () {
+		// Keep player within screen bounds
+		if (self.x < 40) self.x = 40;
+		if (self.x > 2048 - 40) self.x = 2048 - 40;
+		if (self.y < 200) self.y = 200;
+		if (self.y > 2732 - 100) self.y = 2732 - 100;
+	};
 	return self;
 });
 
 /**** 
@@ -99,8 +117,13 @@
 var gameStarted = false;
 var enemySpawnTimer = 0;
 var enemySpawnRate = 120; // frames between spawns
 var difficultyTimer = 0;
+// Movement variables
+var isDragging = false;
+var playerSpeed = 8;
+var targetX = 0;
+var targetY = 0;
 // Create city background
 var cityBuildings = [];
 for (var i = 0; i < 12; i++) {
 	var buildingType = Math.floor(Math.random() * 3) + 1;
@@ -172,18 +195,40 @@
 }
 // Event handlers
 game.down = function (x, y, obj) {
 	if (gameStarted) {
-		fireBullet(x, y);
+		// Check if touch is in top half (shooting) or bottom half (movement)
+		if (y < 2732 / 2) {
+			// Top half - shoot
+			fireBullet(x, y);
+		} else {
+			// Bottom half - start movement
+			isDragging = true;
+			targetX = x;
+			targetY = y;
+		}
 	} else {
 		gameStarted = true;
 	}
 };
+game.move = function (x, y, obj) {
+	if (gameStarted && isDragging) {
+		targetX = x;
+		targetY = y;
+	}
+};
+game.up = function (x, y, obj) {
+	isDragging = false;
+};
 // Main game loop
 game.update = function () {
 	if (!gameStarted) {
 		return;
 	}
+	// Update player movement
+	if (isDragging) {
+		player.moveTowards(targetX, targetY);
+	}
 	// Spawn enemies
 	enemySpawnTimer++;
 	if (enemySpawnTimer >= enemySpawnRate) {
 		spawnEnemy();