/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// Class for falling blocks
var FallingBlock = Container.expand(function () {
	var self = Container.call(this);
	self.containsPoint = function (point) {
		var localPoint = self.toLocal(point);
		return localPoint.x >= 0 && localPoint.y >= 0 && localPoint.x <= self.width && localPoint.y <= self.height;
	};
	var blockGraphics = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var smallBlockGraphics = self.attachAsset('smallBlock', {
		width: 500,
		height: 400,
		anchorX: 0.5,
		anchorY: 0.5
	});
	var smallestBlockGraphics = self.attachAsset('smallestBlock', {
		width: 500,
		height: 125,
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 40;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 || self.x < 0 || self.x > 2048) {
			self.destroy();
		}
	};
	self.down = function (x, y, obj) {
		if (Math.abs(self.y - 2632) < 50) {
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore() + " 一般OK");
			var halo = new Halo();
			halo.x = self.x;
			halo.y = self.y;
			halo.color = 0x808080; // grey color
			game.addChild(halo);
			self.destroy();
		} else if (Math.abs(self.y + smallBlockGraphics.height / 2 - 2632) < 50) {
			LK.setScore(LK.getScore() + 2);
			scoreTxt.setText(LK.getScore() + " 良好Good");
			var halo = new Halo();
			halo.x = self.x;
			halo.y = self.y;
			halo.color = 0x0000ff; // blue color
			game.addChild(halo);
			self.destroy();
		} else if (Math.abs(self.y + smallestBlockGraphics.height / 2 - 2632) < 50) {
			LK.setScore(LK.getScore() + 3);
			scoreTxt.setText(LK.getScore() + " 完美Perfect");
			var halo = new Halo();
			halo.x = self.x;
			halo.y = self.y;
			halo.color = 0xffff00; // gold color
			game.addChild(halo);
			self.destroy();
		}
	};
});
// Class for halo effect
var Halo = Container.expand(function () {
	var self = Container.call(this);
	var haloGraphics = self.attachAsset('halo', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.alpha -= 0.01;
		if (self.alpha <= 0) {
			self.destroy();
		}
	};
});

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

/**** 
* Game Code
****/ 
LK.on('keydown', function (event) {
	if (event.key >= '1' && event.key <= '4') {
		var laneIndex = parseInt(event.key) - 1;
		for (var i = 0; i < blocks.length; i++) {
			if (blocks[i].x === lanes[laneIndex]) {
				blocks[i].down(blocks[i].x, blocks[i].y, {
					global: {
						x: blocks[i].x,
						y: blocks[i].y
					}
				});
				break;
			}
		}
	}
});
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.setText(LK.getScore());
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var blocks = [];
var lanes = [512, 1024, 1536, 2048];
var whiteLine = new Container();
var whiteLineGraphics = whiteLine.attachAsset('line', {
	width: 2048,
	height: 20,
	color: 0xffffff,
	x: 0,
	y: 2402
});
game.addChild(whiteLine);
function spawnBlock() {
	var lane = Math.max(50, Math.min(1898, lanes[Math.floor(Math.random() * lanes.length)]));
	var newBlock = new FallingBlock();
	newBlock.x = lane;
	newBlock.y = 0;
	blocks.push(newBlock);
	game.addChild(newBlock);
}
var spawnInterval = LK.setInterval(spawnBlock, Math.random() * 1400 + 600);
game.update = function () {
	for (var i = blocks.length - 1; i >= 0; i--) {
		if (blocks[i].y > 2732) {
			LK.setScore(LK.getScore() - 1);
			scoreTxt.setText(LK.getScore() + " 失误Miss");
			blocks[i].destroy();
			blocks.splice(i, 1);
		}
	}
};
game.down = function (x, y, obj) {
	for (var i = 0; i < blocks.length; i++) {
		if (blocks[i].containsPoint({
			x: x,
			y: y
		})) {
			blocks[i].down(x, y, obj);
			break;
		}
	}
};