/**** 
* Classes
****/ 
// The assets will be automatically created and loaded by the LK engine
// Create a class for the curling stone
var CurlingStone = Container.expand(function () {
	var self = Container.call(this);
	var stoneGraphics = self.attachAsset('blueStone', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.direction = 0;
	self.update = function () {
		self.x += Math.cos(self.direction) * self.speed;
		self.y += Math.sin(self.direction) * self.speed;
		self.speed *= 0.99; // friction
		if (self.speed < 0.1) {
			self.speed = 0;
		}
	};
	self["throw"] = function (speed, direction) {
		self.speed = speed;
		self.direction = direction;
	};
});
// Create a class for the target
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});

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

/**** 
* Game Code
****/ 
// Add center line to the game
var centerLine = LK.getAsset('centerLine', {
	anchorX: 0.5,
	anchorY: 0.0,
	x: 2048 / 2,
	y: 0
});
game.addChild(centerLine);
// Add grey horizontal line to the center of the map
var greyHorizontalLine = LK.getAsset('redLine', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2
});
game.addChild(greyHorizontalLine);
// Add red horizontal line to the lower quarter of the map
var redLine = LK.getAsset('redLine', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 * 0.75 + 100
});
game.addChild(redLine);
var stone = game.addChild(new CurlingStone());
stone.x = 2048 / 2;
stone.y = 2732 - 150;
var target = game.addChild(new Target());
target.x = 2048 / 2;
target.y = 200;
// Initialize the game state
var throwing = false;
var throwStart = null;
// Handle touch events
game.down = function (x, y, obj) {
	throwing = true;
	throwStart = {
		x: x,
		y: y
	};
};
game.up = function (x, y, obj) {
	if (throwing) {
		var dx = x - throwStart.x;
		var dy = y - throwStart.y;
		var speed = Math.sqrt(dx * dx + dy * dy) / 100;
		var direction = Math.atan2(dy, dx);
		stone["throw"](speed, direction);
		throwing = false;
	}
};
// Update the game state
game.update = function () {
	if (stone.intersects(target)) {
		LK.showGameOver();
	}
};