var OverhangPlate = Container.expand(function (width, direction, color) {
	var self = Container.call(this);
	var plateGraphics = self.createAsset('plate', 'Overhang Plate Graphics', .5, .5);
	plateGraphics.width = width;
	plateGraphics.tint = color;
	self.speedX = direction === 'right' ? 5 : -5;
	self.speedY = -20;
	self.rotationSpeed = direction === 'right' ? 0.01 : -0.01;
	self.move = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		self.speedY += 0.5;
		self.speedX *= 0.99;
		self.rotation += self.rotationSpeed;
	};
});
var Plate = Container.expand(function (targetWidth) {
	var self = Container.call(this);
	var plateGraphics = self.createAsset('plate', 'Plate Graphics', .5, .5);
	plateGraphics.width = targetWidth;
	self.colorIndex = 0;
	self.hsvToRgb = function (h, s, v) {
		var r, g, b;
		var i = Math.floor(h * 6);
		var f = h * 6 - i;
		var p = v * (1 - s);
		var q = v * (1 - f * s);
		var t = v * (1 - (1 - f) * s);
		switch (i % 6) {
			case 0:
				(r = v, g = t, b = p);
				break;
			case 1:
				(r = q, g = v, b = p);
				break;
			case 2:
				(r = p, g = v, b = t);
				break;
			case 3:
				(r = p, g = q, b = v);
				break;
			case 4:
				(r = t, g = p, b = v);
				break;
			case 5:
				(r = v, g = p, b = q);
				break;
		}
		return (r * 255 << 16) + (g * 255 << 8) + b * 255;
	};
	self.updateColor = function () {
		var h = self.colorIndex / 32;
		var s = 1;
		var v = 1;
		self.color = self.hsvToRgb(h, s, v);
		plateGraphics.tint = self.color;
		self.colorIndex = (self.colorIndex + 1) % 32;
		var bgColor = self.hsvToRgb(h, s, v / 3);
		LK.stageContainer.setBackgroundColor(bgColor);
	};
	self.updateColor();
	self.speed = 22.5;
	self.move = function () {
		self.x -= self.speed;
	};
	self.stack = function () {
		self.speed = 0;
	};
	self.slide = function () {
		self.x = 2048 + self.width / 2;
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var scoreTxt = new Text2('0', {
		size: 150,
		fill: '#ffffff',
		font: 'Impact'
	});
	scoreTxt.anchor.set(.5, 0);
	LK.gui.topCenter.addChild(scoreTxt);
	var plateContainer = new Container();
	plateContainer.targetY = 0;
	self.addChild(plateContainer);
	var currentPlateWidth = 1000;
	var plates = [];
	var plateColorIndex = 0;
	var firstPlate = new Plate(currentPlateWidth);
	firstPlate.x = 2048 / 2;
	firstPlate.y = 2732 - firstPlate.height / 2;
	firstPlate.speed = 0;
	firstPlate.colorIndex = plateColorIndex;
	firstPlate.updateColor();
	plates.push(firstPlate);
	plateContainer.addChild(firstPlate);
	var newPlate = new Plate(currentPlateWidth);
	newPlate.slide();
	newPlate.y = 2732 - plates.length * newPlate.height - newPlate.height / 2;
	plateColorIndex++;
	newPlate.colorIndex = plateColorIndex;
	newPlate.updateColor();
	plates.push(newPlate);
	plateContainer.addChild(newPlate);
	stage.on('down', function (obj) {
		var topPlate = plates[plates.length - 2];
		if (newPlate.x < topPlate.x + topPlate.width && newPlate.x + newPlate.width > topPlate.x) {
			var overhang = newPlate.x + newPlate.width / 2 - (topPlate.x + topPlate.width / 2);
			var overhangSide = overhang > 0 ? 'right' : 'left';
			overhang = Math.abs(overhang);
			newPlate.stack();
			currentPlateWidth -= overhang;
			var overhangPlate = new OverhangPlate(overhang, overhangSide, newPlate.color);
			overhangPlate.x = overhangSide === 'right' ? newPlate.x + newPlate.width / 2 : newPlate.x - newPlate.width / 2;
			overhangPlate.y = newPlate.y;
			plateContainer.addChildAt(overhangPlate, 0);
			newPlate.width -= overhang;
			if (overhangSide === 'right') {
				newPlate.x -= overhang / 2;
				overhangPlate.x -= overhang / 2;
			} else {
				newPlate.x += overhang / 2;
				overhangPlate.x += overhang / 2;
			}
			newPlate = new Plate(currentPlateWidth);
			newPlate.slide();
			newPlate.y = 2732 - plates.length * newPlate.height - newPlate.height / 2;
			plateColorIndex++;
			newPlate.colorIndex = plateColorIndex;
			newPlate.updateColor();
			plates.push(newPlate);
			plateContainer.addChild(newPlate);
			if (plates.length > 17) {
				plateContainer.targetY += newPlate.height;
			}
			scoreTxt.setText(plates.length - 2);
		} else {
			LK.showGameOver();
		}
	});
	LK.on('tick', function () {
		for (var i = 0; i < plateContainer.children.length; i++) {
			var plate = plateContainer.children[i];
			plate.move();
			if (plate instanceof OverhangPlate && (plate.x < -plate.width / 2 || plate.x > 2048 + plate.width / 2 || plate.y > 2732 + plate.height / 2)) {
				plate.destroy();
			}
			if (plate instanceof Plate && plate.x < -plate.width / 2) {
				LK.showGameOver();
			}
		}
		if (plateContainer.y !== plateContainer.targetY) {
			plateContainer.y += (plateContainer.targetY - plateContainer.y) * 0.1;
		}
	});
});