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

/**** 
* Classes
****/ 
var Arm = Container.expand(function () {
	var self = Container.call(this);
	var armGraphics = self.attachAsset('arm', {
		anchorX: 0.5,
		anchorY: 0.8
	});
	var gunGraphics = self.attachAsset('gun', {
		anchorX: 0.5,
		anchorY: 0.9
	});
	self.gunAngle = 0;
	self.aimAt = function (x, y) {
		var dx = x - self.x;
		var dy = y - self.y;
		self.gunAngle = Math.atan2(dy, dx);
		gunGraphics.rotation = self.gunAngle;
	};
	self.getGunTip = function () {
		var tipDistance = 60;
		return {
			x: self.x + Math.cos(self.gunAngle) * tipDistance,
			y: self.y + Math.sin(self.gunAngle) * tipDistance
		};
	};
	return self;
});
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.direction = 0;
	self.velocityX = 0;
	self.velocityY = 0;
	self.setDirection = function (angle) {
		self.direction = angle;
		self.velocityX = Math.cos(angle) * self.speed;
		self.velocityY = Math.sin(angle) * self.speed;
	};
	self.update = function () {
		self.x += self.velocityX;
		self.y += self.velocityY;
	};
	return self;
});
var Crocodile = Container.expand(function () {
	var self = Container.call(this);
	var crocodileGraphics = self.attachAsset('crocodile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1.5;
	self.targetX = 0;
	self.targetY = 0;
	self.angle = 0;
	self.setTarget = function (x, y) {
		self.targetX = x;
		self.targetY = y;
		var dx = x - self.x;
		var dy = y - self.y;
		self.angle = Math.atan2(dy, dx);
		crocodileGraphics.rotation = self.angle;
	};
	self.update = function () {
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 5) {
			self.x += Math.cos(self.angle) * self.speed;
			self.y += Math.sin(self.angle) * self.speed;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c5530
});

/**** 
* Game Code
****/ 
var currentLevel = 1;
var crocodiles = [];
var bullets = [];
var crocodilesRemaining = 0;
var arm = null;
var levelText = null;
var crocodilesText = null;
var gameStarted = false;
var levelCompleted = false;
// Initialize UI
levelText = new Text2('Level: 1', {
	size: 80,
	fill: 0xFFFFFF
});
levelText.anchor.set(0, 0);
levelText.x = 120;
levelText.y = 50;
LK.gui.topLeft.addChild(levelText);
crocodilesText = new Text2('Crocodiles: 0', {
	size: 80,
	fill: 0xFFFFFF
});
crocodilesText.anchor.set(1, 0);
crocodilesText.x = -50;
crocodilesText.y = 50;
LK.gui.topRight.addChild(crocodilesText);
// Create arm at center
arm = game.addChild(new Arm());
arm.x = 2048 / 2;
arm.y = 2732 / 2;
function spawnCrocodile() {
	var crocodile = new Crocodile();
	// Spawn at random edge of screen
	var edge = Math.floor(Math.random() * 4);
	switch (edge) {
		case 0:
			// Top
			crocodile.x = Math.random() * 2048;
			crocodile.y = -100;
			break;
		case 1:
			// Right
			crocodile.x = 2148;
			crocodile.y = Math.random() * 2732;
			break;
		case 2:
			// Bottom
			crocodile.x = Math.random() * 2048;
			crocodile.y = 2832;
			break;
		case 3:
			// Left
			crocodile.x = -100;
			crocodile.y = Math.random() * 2732;
			break;
	}
	crocodile.setTarget(arm.x, arm.y);
	crocodiles.push(crocodile);
	game.addChild(crocodile);
	// Play growl sound
	LK.getSound('crocodileGrowl').play();
}
function startLevel() {
	crocodiles = [];
	bullets = [];
	crocodilesRemaining = currentLevel;
	levelCompleted = false;
	// Spawn crocodiles for current level
	for (var i = 0; i < currentLevel; i++) {
		LK.setTimeout(function () {
			spawnCrocodile();
		}, i * 500);
	}
	updateUI();
	gameStarted = true;
}
function updateUI() {
	levelText.setText('Level: ' + currentLevel);
	crocodilesText.setText('Crocodiles: ' + crocodilesRemaining);
}
function checkLevelComplete() {
	if (crocodilesRemaining <= 0 && !levelCompleted) {
		levelCompleted = true;
		currentLevel++;
		LK.setTimeout(function () {
			startLevel();
		}, 1000);
	}
}
function gameOver() {
	currentLevel = 1;
	levelCompleted = false;
	// Clean up
	for (var i = 0; i < crocodiles.length; i++) {
		crocodiles[i].destroy();
	}
	for (var i = 0; i < bullets.length; i++) {
		bullets[i].destroy();
	}
	crocodiles = [];
	bullets = [];
	LK.effects.flashScreen(0xff0000, 1000);
	LK.setTimeout(function () {
		startLevel();
	}, 1500);
}
// Mouse/touch controls
game.move = function (x, y, obj) {
	if (arm && gameStarted) {
		arm.aimAt(x, y);
	}
};
game.down = function (x, y, obj) {
	if (arm && gameStarted) {
		arm.aimAt(x, y);
		// Create bullet
		var bullet = new Bullet();
		var gunTip = arm.getGunTip();
		bullet.x = gunTip.x;
		bullet.y = gunTip.y;
		bullet.setDirection(arm.gunAngle);
		bullets.push(bullet);
		game.addChild(bullet);
		// Play gunshot sound
		LK.getSound('gunshot').play();
	}
};
game.update = function () {
	if (!gameStarted) return;
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		// Remove bullets that go off screen
		if (bullet.x < -50 || bullet.x > 2098 || bullet.y < -50 || bullet.y > 2782) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check bullet-crocodile collisions
		for (var j = crocodiles.length - 1; j >= 0; j--) {
			var crocodile = crocodiles[j];
			if (bullet.intersects(crocodile)) {
				// Remove both bullet and crocodile
				bullet.destroy();
				bullets.splice(i, 1);
				crocodile.destroy();
				crocodiles.splice(j, 1);
				crocodilesRemaining--;
				updateUI();
				break;
			}
		}
	}
	// Update crocodiles and check if they reach the arm
	for (var i = crocodiles.length - 1; i >= 0; i--) {
		var crocodile = crocodiles[i];
		if (crocodile.intersects(arm)) {
			gameOver();
			return;
		}
	}
	// Check if level is complete
	checkLevelComplete();
};
// Start the game
LK.playMusic('backgroundMusic');
startLevel();

===================================================================
--- original.js
+++ change.js
@@ -100,8 +100,9 @@
 var arm = null;
 var levelText = null;
 var crocodilesText = null;
 var gameStarted = false;
+var levelCompleted = false;
 // Initialize UI
 levelText = new Text2('Level: 1', {
 	size: 80,
 	fill: 0xFFFFFF
@@ -157,8 +158,9 @@
 function startLevel() {
 	crocodiles = [];
 	bullets = [];
 	crocodilesRemaining = currentLevel;
+	levelCompleted = false;
 	// Spawn crocodiles for current level
 	for (var i = 0; i < currentLevel; i++) {
 		LK.setTimeout(function () {
 			spawnCrocodile();
@@ -171,17 +173,19 @@
 	levelText.setText('Level: ' + currentLevel);
 	crocodilesText.setText('Crocodiles: ' + crocodilesRemaining);
 }
 function checkLevelComplete() {
-	if (crocodilesRemaining <= 0) {
+	if (crocodilesRemaining <= 0 && !levelCompleted) {
+		levelCompleted = true;
 		currentLevel++;
 		LK.setTimeout(function () {
 			startLevel();
 		}, 1000);
 	}
 }
 function gameOver() {
 	currentLevel = 1;
+	levelCompleted = false;
 	// Clean up
 	for (var i = 0; i < crocodiles.length; i++) {
 		crocodiles[i].destroy();
 	}