/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// Bird class
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedY = 0;
	self.gravity = 0.5;
	self.speedX = 0;
	self.jumpStrength = -10;
	self.update = function () {
		self.speedY += self.gravity;
		self.y += self.speedY;
		self.x += self.speedX;
		if (self.x < birdGraphics.width / 2) {
			self.x = birdGraphics.width / 2;
			self.speedX = 0;
		}
		if (self.x > 2048 - birdGraphics.width / 2) {
			self.x = 2048 - birdGraphics.width / 2;
			self.speedX = 0;
		}
		if (self.y > 2732 - birdGraphics.height / 2) {
			self.y = 2732 - birdGraphics.height / 2;
			self.speedY = 0;
		}
	};
	self.jump = function () {
		self.speedY = self.jumpStrength;
	};
});
// Platform class
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var platformGraphics = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += 5;
		if (self.y > 2732 + platformGraphics.height / 2) {
			self.y = -platformGraphics.height / 2;
			self.x = Math.random() * 2048;
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Init game with sky blue background
});

/**** 
* Game Code
****/ 
// Initialize bird
var bird = game.addChild(new Bird());
bird.x = 2048 / 2;
bird.y = 2732 / 2;
bird.speedX = 0;
// Initialize platforms
var platforms = [];
for (var i = 0; i < 5; i++) {
	var platform = new Platform();
	platform.x = Math.random() * 2048;
	platform.y = i * 500;
	platforms.push(platform);
	game.addChild(platform);
}
// Handle touch events
game.down = function (x, y, obj) {
	bird.jump();
	if (x < 2048 / 2) {
		bird.speedX = -5;
	} else {
		bird.speedX = 5;
	}
};
// Update game logic
game.update = function () {
	bird.update();
	for (var i = 0; i < platforms.length; i++) {
		platforms[i].update();
		if (bird.intersects(platforms[i]) && bird.speedY > 0) {
			bird.jump();
			bird.speedX = 0;
		}
	}
};