var Dot = Container.expand(function () {
	var self = Container.call(this);
	var dotGraphics = self.createAsset('dot', 'Dot Graphics', .5, .5);
	self.eaten = false;
});
var Snake = Container.expand(function () {
	var self = Container.call(this);
	var gridSize = 32;
	var snakeGraphics = self.createAsset('snake', 'Snake Graphics', .5, .5);
	self.length = 1;
	self.direction = 'right';
	self.body = [];
	self.move = function () {
		var gridSize = 32;
		var headX = self.x;
		var headY = self.y;
		switch (self.direction) {
			case 'right':
				self.x = Math.round((self.x + gridSize) / gridSize) * gridSize;
				break;
			case 'left':
				self.x -= gridSize;
				break;
			case 'down':
				self.y += gridSize;
				break;
			case 'up':
				self.y -= gridSize;
				break;
		}
		for (var i = self.body.length - 1; i >= 0; i--) {
			if (i === 0) {
				self.body[i].x = Math.round(headX / gridSize) * gridSize;
				self.body[i].y = Math.round(headY / gridSize) * gridSize;
			} else {
				self.body[i].x = self.body[i - 1].x;
				self.body[i].y = self.body[i - 1].y;
			}
		}
	};
	self.eat = function (dot) {
		self.length++;
		var newSegment = self.createAsset('snakeBody', 'Snake Body Segment', .5, .5);
		self.body.push(newSegment);
		self.addChild(newSegment);
		if (self.body.length > 1) {
			var lastSegment = self.body[self.body.length - 2];
			newSegment.x = lastSegment.x;
			newSegment.y = lastSegment.y;
		}
	};
	self.checkCollision = function () {
		var maxX = 2048;
		var maxY = 2732;
		if (self.x < 0) self.x = maxX - gridSize;
		if (self.x >= maxX) self.x = 0;
		if (self.y < 0) self.y = maxY - gridSize;
		if (self.y >= maxY) self.y = 0;
		for (var i = 0; i < self.body.length; i++) {
			if (self.intersects(self.body[i])) {
				isGameOver = true;
				break;
			}
		}
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	LK.stageContainer.setBackgroundColor(0x000000);
	var dots = [];
	var snake = self.addChild(new Snake());
	snake.x = 1024;
	snake.y = 1366;
	var scoreTxt = new Text2('0', {
		size: 150,
		fill: "#ffffff"
	});
	scoreTxt.anchor.set(.5, 0);
	LK.gui.topCenter.addChild(scoreTxt);
	var isGameOver = false;
	LK.on('tick', function () {
		snake.move();
		snake.checkCollision();
		if (isGameOver) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
		for (var i = 0; i < dots.length; i++) {
			if (snake.intersects(dots[i]) && !dots[i].eaten) {
				snake.eat(dots[i]);
				dots[i].eaten = true;
				scoreTxt.setText(parseInt(scoreTxt.text) + 1);
				self.removeChild(dots[i]);
				dots.splice(i, 1);
				spawnDot();
			}
		}
	});
	var startSwipePos = null;
	stage.on('down', function (obj) {
		startSwipePos = obj.event.getLocalPosition(self);
	});
	stage.on('up', function (obj) {
		if (!startSwipePos) return;
		var endSwipePos = obj.event.getLocalPosition(self);
		var dx = endSwipePos.x - startSwipePos.x;
		var dy = endSwipePos.y - startSwipePos.y;
		if (Math.abs(dx) > Math.abs(dy)) {
			snake.direction = dx > 0 ? 'right' : 'left';
		} else {
			snake.direction = dy > 0 ? 'down' : 'up';
		}
		startSwipePos = null;
	});
	var spawnDot = function () {
		var dot = new Dot();
		var gridSize = 32;
		dot.x = Math.round(Math.random() * (2048 / gridSize)) * gridSize;
		dot.y = Math.round(Math.random() * (2732 / gridSize)) * gridSize;
		dots.push(dot);
		self.addChild(dot);
	};
	spawnDot();
});

===================================================================
--- original.js
+++ change.js
@@ -15,9 +15,9 @@
 		var headX = self.x;
 		var headY = self.y;
 		switch (self.direction) {
 			case 'right':
-				self.x += gridSize;
+				self.x = Math.round((self.x + gridSize) / gridSize) * gridSize;
 				break;
 			case 'left':
 				self.x -= gridSize;
 				break;
@@ -29,10 +29,10 @@
 				break;
 		}
 		for (var i = self.body.length - 1; i >= 0; i--) {
 			if (i === 0) {
-				self.body[i].x = headX;
-				self.body[i].y = headY;
+				self.body[i].x = Math.round(headX / gridSize) * gridSize;
+				self.body[i].y = Math.round(headY / gridSize) * gridSize;
 			} else {
 				self.body[i].x = self.body[i - 1].x;
 				self.body[i].y = self.body[i - 1].y;
 			}
@@ -114,10 +114,10 @@
 	});
 	var spawnDot = function () {
 		var dot = new Dot();
 		var gridSize = 32;
-		dot.x = Math.floor(Math.random() * (2048 / gridSize)) * gridSize + gridSize / 2;
-		dot.y = Math.floor(Math.random() * (2732 / gridSize)) * gridSize + gridSize / 2;
+		dot.x = Math.round(Math.random() * (2048 / gridSize)) * gridSize;
+		dot.y = Math.round(Math.random() * (2732 / gridSize)) * gridSize;
 		dots.push(dot);
 		self.addChild(dot);
 	};
 	spawnDot();