/**** 
* Classes
****/ 
var Character = Container.expand(function () {
	var self = Container.call(this);
	// Create and attach body parts
	var body = self.attachAsset('body', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var armLeft = self.addChild(new CharacterArm());
	var armRight = self.addChild(new CharacterArm());
	var legLeft = self.addChild(new CharacterLeg());
	var legRight = self.addChild(new CharacterLeg());
	// Position body parts
	body.x = 0;
	body.y = 0;
	armLeft.x = -body.width / 2;
	armLeft.y = -body.height / 2;
	armRight.x = body.width / 2;
	armRight.y = -body.height / 2;
	legLeft.x = -body.width / 4;
	legLeft.y = body.height / 2;
	legRight.x = body.width / 4;
	legRight.y = body.height / 2;
	// Add an empty update function to the Character class
	self.runAlpha = 0;
	self.update = function () {
		this.runAlpha += 0.001;
		armLeft.update(this.runAlpha);
		armRight.update(this.runAlpha - 0.5);
	};
});
var CharacterArm = Container.expand(function () {
	var self = Container.call(this);
	// Arm settings
	var upperBaseAngle = -Math.PI * 3 / 8;
	var lowerBaseAngle = -Math.PI / 4;
	var lowerHoldAngle = -Math.PI * 5 / 8;
	var lowerBaseOffset = 90;
	// Create and attach arm parts
	var upper = self.attachAsset('upperArm', {
		rotation: upperBaseAngle,
		anchorX: 0.85,
		anchorY: 0.25
	});
	var lower = self.attachAsset('lowerArm', {
		y: lowerBaseOffset,
		rotation: lowerBaseAngle + lowerHoldAngle,
		anchorX: 0.95,
		anchorY: 0.05
	});
	var upperDebug = self.attachAsset('blank', {
		anchorX: 0.5,
		scaleX: 0.05,
		scaleY: lowerBaseOffset / 100,
		tint: 0xFF0000
	});
	var lowerDebug = self.attachAsset('blank', {
		y: lowerBaseOffset,
		rotation: lowerHoldAngle,
		anchorX: 0.5,
		scaleX: 0.05,
		tint: 0xFF0000
	});
	// Add an empty update function to the CharacterArm class that takes in an alpha value
	self.update = function (alpha) {
		// Swing the arm using a sinusoidal equation based on alpha
		var upperSwing = Math.sin(alpha * Math.PI * 2) * Math.PI / 4; // Swing between -45 and 45 degrees
		var lowerSwing = upperSwing / 2;
		self.rotation = -upperSwing;
		lower.rotation = lowerBaseAngle + lowerHoldAngle + lowerSwing;
		// Debugging
		lowerDebug.rotation = lower.rotation - lowerBaseAngle;
	};
});
var CharacterLeg = Container.expand(function () {
	var self = Container.call(this);
	// Create and attach leg parts
	var upperLeg = self.attachAsset('upperLeg', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var lowerLeg = self.attachAsset('lowerLeg', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Position leg parts
	upperLeg.x = 0;
	upperLeg.y = 0;
	lowerLeg.x = upperLeg.x;
	lowerLeg.y = upperLeg.y + upperLeg.height;
	// Add an empty update function to the CharacterLeg class that takes in an alpha value
	self.update = function (alpha) {};
});

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

/**** 
* Game Code
****/ 
var character = game.addChild(new Character());
// Position character at the center of the screen
character.x = 2048 / 2;
character.y = 2732 / 2;
// Add an ontick event to the game which calls the character's update method
LK.on('tick', function () {
	character.update();
});