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

/**** 
* Initialize Game
****/ 
// No sandbox drag-and-drop classes needed for Free Fire shooter
var game = new LK.Game({
	backgroundColor: 0xf0f0f0
});

/**** 
* Game Code
****/ 
// --- Free Fire Top-Down Shooter Game State ---
var player = null;
var enemies = [];
var bullets = [];
var score = 0;
var gameOver = false;
var lastTouchX = 0;
var lastTouchY = 0;
var shootCooldown = 0;
var enemySpawnCooldown = 0;
// --- UI ---
var titleTxt = new Text2('Free Fire', {
	size: 90,
	fill: 0x222222
});
titleTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(titleTxt);
var scoreTxt = new Text2('0', {
	size: 70,
	fill: 0x3A8EE6
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.y = 0;
LK.gui.top.addChild(scoreTxt);
var infoTxt = new Text2('Drag to move. Tap to shoot!', {
	size: 60,
	fill: 0x444444
});
infoTxt.anchor.set(0.5, 0);
infoTxt.y = 0;
LK.gui.bottom.addChild(infoTxt);
// --- Background ---
var bgGrid = LK.getAsset('bgGrid', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
game.addChild(bgGrid);
// --- Player ---
function createPlayer() {
	var p = new Container();
	var gfx = p.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	p.x = 2048 / 2;
	p.y = 2732 - 400;
	p.radius = gfx.width / 2;
	p.width = gfx.width;
	p.height = gfx.height;
	p.lastX = p.x;
	p.lastY = p.y;
	return p;
}
player = createPlayer();
game.addChild(player);
// --- Enemy ---
function createEnemy() {
	var e = new Container();
	var gfx = e.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Spawn at random X at top
	e.x = 200 + Math.random() * (2048 - 400);
	e.y = -gfx.height;
	e.radius = gfx.width / 2;
	e.width = gfx.width;
	e.height = gfx.height;
	e.speed = 6 + Math.random() * 4;
	e.lastY = e.y;
	return e;
}
// --- Bullet ---
function createBullet(x, y, dx, dy) {
	var b = new Container();
	var gfx = b.attachAsset('goal', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	b.x = x;
	b.y = y;
	b.radius = gfx.width / 2;
	b.width = gfx.width;
	b.height = gfx.height;
	b.dx = dx;
	b.dy = dy;
	b.lastY = b.y;
	return b;
}
// --- Reset Game ---
function resetGame() {
	// Remove all enemies and bullets
	for (var i = 0; i < enemies.length; ++i) enemies[i].destroy();
	for (var i = 0; i < bullets.length; ++i) bullets[i].destroy();
	enemies = [];
	bullets = [];
	player.x = 2048 / 2;
	player.y = 2732 - 400;
	player.lastX = player.x;
	player.lastY = player.y;
	score = 0;
	scoreTxt.setText(score);
	gameOver = false;
	shootCooldown = 0;
	enemySpawnCooldown = 0;
}
// --- Game move handler (drag to move, tap to shoot) ---
game.move = function (x, y, obj) {
	if (gameOver) return;
	// Drag to move player
	player.x = x;
	player.y = y;
	lastTouchX = x;
	lastTouchY = y;
};
game.down = function (x, y, obj) {
	if (gameOver) {
		resetGame();
		return;
	}
	// Shoot bullet towards touch
	var dx = x - player.x;
	var dy = y - player.y;
	var len = Math.sqrt(dx * dx + dy * dy);
	if (len > 0) {
		dx /= len;
		dy /= len;
		var bullet = createBullet(player.x, player.y, dx * 32, dy * 32);
		bullets.push(bullet);
		game.addChild(bullet);
		shootCooldown = 10;
	}
};
game.up = function (x, y, obj) {
	// No dragNode logic needed
};
// --- Game update loop ---
game.update = function () {
	if (gameOver) return;
	// --- Bullets update ---
	for (var i = bullets.length - 1; i >= 0; --i) {
		var b = bullets[i];
		b.lastY = b.y;
		b.x += b.dx;
		b.y += b.dy;
		// Remove if off screen
		if (b.x < -100 || b.x > 2048 + 100 || b.y < -100 || b.y > 2732 + 100) {
			b.destroy();
			bullets.splice(i, 1);
			continue;
		}
	}
	// --- Enemies update ---
	for (var i = enemies.length - 1; i >= 0; --i) {
		var e = enemies[i];
		e.lastY = e.y;
		e.y += e.speed;
		// Remove if off screen
		if (e.y > 2732 + 200) {
			e.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (Math.abs(e.x - player.x) < (e.width + player.width) / 2 * 0.8 && Math.abs(e.y - player.y) < (e.height + player.height) / 2 * 0.8) {
			// Game over
			LK.effects.flashScreen(0xe64a3a, 1000);
			gameOver = true;
			infoTxt.setText('Game Over! Tap to restart.');
			LK.showGameOver();
			return;
		}
	}
	// --- Bullet/Enemy collision ---
	for (var i = bullets.length - 1; i >= 0; --i) {
		var b = bullets[i];
		for (var j = enemies.length - 1; j >= 0; --j) {
			var e = enemies[j];
			if (Math.abs(b.x - e.x) < (b.width + e.width) / 2 * 0.8 && Math.abs(b.y - e.y) < (b.height + e.height) / 2 * 0.8) {
				// Destroy both
				b.destroy();
				e.destroy();
				bullets.splice(i, 1);
				enemies.splice(j, 1);
				score += 1;
				scoreTxt.setText(score);
				break;
			}
		}
	}
	// --- Spawn enemies ---
	enemySpawnCooldown--;
	if (enemySpawnCooldown <= 0) {
		var enemy = createEnemy();
		enemies.push(enemy);
		game.addChild(enemy);
		enemySpawnCooldown = 40 + Math.floor(Math.random() * 30);
	}
	// --- Shoot cooldown ---
	if (shootCooldown > 0) shootCooldown--;
};
// --- Start game ---
resetGame();
// --- Prevent elements in top-left 100x100 px ---
bgGrid.x = 0;
bgGrid.y = 0;
// --- End of file ---;

===================================================================
--- original.js
+++ change.js
@@ -3,62 +3,11 @@
 ****/ 
 var tween = LK.import("@upit/tween.v1");
 
 /**** 
-* Classes
-****/ 
-// Draggable base class for all sandbox elements
-var Draggable = Container.expand(function () {
-	var self = Container.call(this);
-	self.isDragging = false;
-	// Called when user presses down on the element
-	self.down = function (x, y, obj) {
-		self.isDragging = true;
-		self.dragOffsetX = x - self.x;
-		self.dragOffsetY = y - self.y;
-		dragNode = self;
-	};
-	// Called when user releases the element
-	self.up = function (x, y, obj) {
-		self.isDragging = false;
-		dragNode = null;
-	};
-	return self;
-});
-// Player class
-var Player = Draggable.expand(function () {
-	var self = Draggable.call(this);
-	var gfx = self.attachAsset('player', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	self.type = 'player';
-	return self;
-});
-// Obstacle class
-var Obstacle = Draggable.expand(function () {
-	var self = Draggable.call(this);
-	var gfx = self.attachAsset('obstacle', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	self.type = 'obstacle';
-	return self;
-});
-// Goal class
-var Goal = Draggable.expand(function () {
-	var self = Draggable.call(this);
-	var gfx = self.attachAsset('goal', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	self.type = 'goal';
-	return self;
-});
-
-/**** 
 * Initialize Game
 ****/ 
+// No sandbox drag-and-drop classes needed for Free Fire shooter
 var game = new LK.Game({
 	backgroundColor: 0xf0f0f0
 });