/**** 
* Classes
****/ 
// Define the AI Car class
var AICar = Container.expand(function () {
	var self = Container.call(this);
	var aiCarGraphics = self.attachAsset('aiCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.update = function () {
		self.y += self.speed;
	};
});
//<Assets used in the game will automatically appear here>
// Define the Car class
var Car = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.update = function () {
		self.y += self.speed;
	};
});

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

/**** 
* Game Code
****/ 
// Initialize player car
var playerCar = game.addChild(new Car());
playerCar.x = 2048 / 2;
playerCar.y = 2732 - 200;
// Initialize AI cars
var aiCars = [];
for (var i = 0; i < 5; i++) {
	var aiCar = new AICar();
	aiCar.x = Math.random() * 2048;
	aiCar.y = Math.random() * 2732 / 2;
	aiCar.speed = Math.random() * 5 + 2;
	aiCars.push(aiCar);
	game.addChild(aiCar);
}
// Handle player car movement
var dragNode = null;
// Define the handleMove function
function handleMove(x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
	}
}
game.down = function (x, y, obj) {
	dragNode = playerCar;
	handleMove(x, y, obj);
};
game.move = function (x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Update game state
game.update = function () {
	playerCar.update();
	for (var i = 0; i < aiCars.length; i++) {
		aiCars[i].update();
		if (aiCars[i].y > 2732) {
			aiCars[i].y = -100;
			aiCars[i].x = Math.random() * 2048;
		}
	}
};