/**** 
* Classes
****/ 
// Food class to manage the food's position
var Food = Container.expand(function () {
	var self = Container.call(this);
	var foodGraphic = self.attachAsset('food', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Randomly position the food on the screen
	self.randomizePosition = function () {
		self.x = Math.floor(Math.random() * 2048);
		self.y = Math.floor(Math.random() * 2732);
	};
});
// Assets will be automatically created and loaded by the LK engine based on their usage in the code.
// For example, the snake and food will be represented by shapes or images initialized dynamically.
// Snake class to manage the snake's body and movement
var Snake = Container.expand(function () {
	var self = Container.call(this);
	self.body = [];
	self.direction = {
		x: 0,
		y: -1
	}; // Initial direction: moving up
	self.speed = 10; // Speed of the snake
	// Initialize the snake with a starting length
	self.init = function (length) {
		for (var i = 0; i < length; i++) {
			var segment = self.attachAsset('snakeSegment', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			segment.x = 1024; // Center of the screen
			segment.y = 1366 + i * 20; // Stacked vertically
			self.body.push(segment);
		}
	};
	// Update the snake's position
	self.update = function () {
		// Move the body segments
		for (var i = self.body.length - 1; i > 0; i--) {
			self.body[i].x = self.body[i - 1].x;
			self.body[i].y = self.body[i - 1].y;
		}
		// Move the head
		self.body[0].x += self.direction.x * self.speed;
		self.body[0].y += self.direction.y * self.speed;
	};
	// Grow the snake by adding a new segment
	self.grow = function () {
		var lastSegment = self.body[self.body.length - 1];
		var newSegment = self.attachAsset('snakeSegment', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		newSegment.x = lastSegment.x;
		newSegment.y = lastSegment.y;
		self.body.push(newSegment);
	};
	// Check if the snake has collided with itself
	self.checkSelfCollision = function () {
		var head = self.body[0];
		for (var i = 1; i < self.body.length; i++) {
			if (head.x === self.body[i].x && head.y === self.body[i].y) {
				return true;
			}
		}
		return false;
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 // Init game with black background
});

/**** 
* Game Code
****/ 
var snake = new Snake();
var food = new Food();
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
var score = 0;
// Initialize the snake and food
snake.init(5);
food.randomizePosition();
// Add snake and food to the game
game.addChild(snake);
game.addChild(food);
// Add score text to the GUI
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Handle touch events to change snake direction
game.down = function (x, y, obj) {
	var head = snake.body[0];
	var dx = x - head.x;
	var dy = y - head.y;
	if (Math.abs(dx) > Math.abs(dy)) {
		if (dx > 0) {
			snake.direction = {
				x: 1,
				y: 0
			}; // Move right
		} else {
			snake.direction = {
				x: -1,
				y: 0
			}; // Move left
		}
	} else {
		if (dy > 0) {
			snake.direction = {
				x: 0,
				y: 1
			}; // Move down
		} else {
			snake.direction = {
				x: 0,
				y: -1
			}; // Move up
		}
	}
};
// Update game logic
game.update = function () {
	snake.update();
	// Check for collision with food
	if (Math.abs(snake.body[0].x - food.x) < 50 && Math.abs(snake.body[0].y - food.y) < 50) {
		snake.grow();
		food.randomizePosition();
		score++;
		scoreTxt.setText(score);
	}
	// Check for self-collision
	if (snake.checkSelfCollision()) {
		// Removed game over when snake collides with itself
	}
	// Check for collision with walls
	var head = snake.body[0];
	if (head.x < 0 || head.x > 2048 || head.y < 0 || head.y > 2732) {
		// Removed game over when snake collides with walls
		// Implement logic to wrap the snake around the screen
		if (head.x < 0) {
			head.x = 2048;
		}
		if (head.x > 2048) {
			head.x = 0;
		}
		if (head.y < 0) {
			head.y = 2732;
		}
		if (head.y > 2732) {
			head.y = 0;
		}
	}
};