===================================================================
--- original.js
+++ change.js
@@ -1,8 +1,11 @@
+/**** 
+* Classes
+****/
 var Tile = Container.expand(function (value) {
 	var self = Container.call(this);
 	self.alpha = 0;
-	var fadeIn = function () {
+	var fadeIn = function fadeIn() {
 		if (self.alpha < 1) {
 			self.alpha = Math.min(self.alpha + 0.24, 1);
 			self.scale.set(self.alpha);
 			LK.setTimeout(fadeIn, 16.67);
@@ -12,34 +15,37 @@
 		}
 	};
 	fadeIn();
 	self.value = value || 2;
-	var tileGraphics = self.createAsset('tile', 'Tile Graphics', .5, .5);
-	var hsvToRgb = function (h, s, v) {
+	var tileGraphics = self.attachAsset('tile', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var hsvToRgb = function hsvToRgb(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);
+				r = v, g = t, b = p;
 				break;
 			case 1:
-				(r = q, g = v, b = p);
+				r = q, g = v, b = p;
 				break;
 			case 2:
-				(r = p, g = v, b = t);
+				r = p, g = v, b = t;
 				break;
 			case 3:
-				(r = p, g = q, b = v);
+				r = p, g = q, b = v;
 				break;
 			case 4:
-				(r = t, g = p, b = v);
+				r = t, g = p, b = v;
 				break;
 			case 5:
-				(r = v, g = p, b = q);
+				r = v, g = p, b = q;
 				break;
 		}
 		return (Math.round(r * 255) << 16) + (Math.round(g * 255) << 8) + Math.round(b * 255);
 	};
@@ -70,9 +76,9 @@
 			tileLabel.scale.set(textScale);
 			self.setTint();
 			self.newValue = null;
 			self.scale.set(1.2);
-			var scaleDown = function () {
+			var scaleDown = function scaleDown() {
 				if (self.scale.x > 1) {
 					self.scale.x -= 0.02;
 					self.scale.y -= 0.02;
 					LK.setTimeout(scaleDown, 16.67);
@@ -110,265 +116,288 @@
 		self.y = self.targetY;
 		return true;
 	};
 });
-var Game = Container.expand(function () {
-	var self = Container.call(this);
-	self.checkPossibleMoves = function () {
-		for (var i = 0; i < gridSize; i++) {
-			for (var j = 0; j < gridSize; j++) {
-				if (squares[i][j] === null) {
-					return true;
-				}
-				if (i < gridSize - 1 && squares[i][j] !== null && squares[i + 1][j] !== null && squares[i][j].value === squares[i + 1][j].value) {
-					return true;
-				}
-				if (j < gridSize - 1 && squares[i][j] !== null && squares[i][j + 1] !== null && squares[i][j].value === squares[i][j + 1].value) {
-					return true;
-				}
+
+/**** 
+* Initialize Game
+****/
+var game = new LK.Game({
+	backgroundColor: 0x000000
+});
+
+/**** 
+* Game Code
+****/
+game.checkPossibleMoves = function () {
+	for (var i = 0; i < gridSize; i++) {
+		for (var j = 0; j < gridSize; j++) {
+			if (squares[i][j] === null) {
+				return true;
 			}
-		}
-		return false;
-	};
-	var scoreTxt = new Text2('2', {
-		size: 220,
-		fill: '#000000',
-		font: 'Impact',
-		strokeThickness: 0
-	});
-	scoreTxt.anchor.set(.5, 0);
-	LK.gui.topCenter.addChild(scoreTxt);
-	var tutorialTxt = new Text2('Swipe to merge & merge', {
-		size: 120,
-		fill: '#000000',
-		font: 'Impact',
-		strokeThickness: 0
-	});
-	tutorialTxt.anchor.set(.5, 1);
-	LK.gui.bottom.addChild(tutorialTxt);
-	tutorialTxt.y -= 30;
-	var toBeRemoved = [];
-	self.addRandomTile = function () {
-		var emptyPositions = [];
-		for (var i = 0; i < gridSize; i++) {
-			for (var j = 0; j < gridSize; j++) {
-				if (squares[i][j] === null) {
-					emptyPositions.push({
-						x: i,
-						y: j
-					});
-				}
+			if (i < gridSize - 1 && squares[i][j] !== null && squares[i + 1][j] !== null && squares[i][j].value === squares[i + 1][j].value) {
+				return true;
 			}
+			if (j < gridSize - 1 && squares[i][j] !== null && squares[i][j + 1] !== null && squares[i][j].value === squares[i][j + 1].value) {
+				return true;
+			}
 		}
-		if (emptyPositions.length > 0) {
-			var randomPosition = emptyPositions[Math.floor(Math.random() * emptyPositions.length)];
-			var square = new Tile(Math.random() < 0.5 ? 2 : 4);
-			square.setPosition(randomPosition.x, randomPosition.y, true);
-			squares[randomPosition.x][randomPosition.y] = square;
-			gridContainer.addChild(square);
-		}
-	};
-	self.mergeTiles = function (x1, y1, x2, y2) {
-		if (squares[x1][y1] !== null && squares[x2][y2] !== null && squares[x1][y1].value === squares[x2][y2].value && !squares[x1][y1].merged && !squares[x2][y2].merged) {
-			squares[x2][y2].setValue(squares[x2][y2].value * 2, true);
-			squares[x2][y2].merged = true;
-			squares[x1][y1].targetX = squares[x2][y2].targetX;
-			squares[x1][y1].targetY = squares[x2][y2].targetY;
-			toBeRemoved.push(squares[x1][y1]);
-			squares[x1][y1] = null;
-			gridContainer.removeChild(squares[x2][y2]);
-			gridContainer.addChild(squares[x2][y2]);
-			return true;
-		}
-		return false;
-	};
-	var gridSize = 4;
-	LK.stageContainer.setBackgroundColor(0xD3D3D3);
-	var gridContainer = new Container();
-	gridContainer.x = 44;
-	gridContainer.y = 400;
-	self.addChild(gridContainer);
-	for (var i = 0; i < gridSize; i++) {
-		for (var j = 0; j < gridSize; j++) {
-			var gridTile = gridContainer.createAsset('gridTile', 'Grid Tile', .5, .5);
-			gridTile.x = i * 500 + 250;
-			gridTile.y = j * 500 + 250;
-			gridTile.alpha = .1;
-		}
 	}
-	var squares = new Array(gridSize).fill().map(() => new Array(gridSize).fill(null));
+	return false;
+};
+var scoreTxt = new Text2('2', {
+	size: 220,
+	fill: '#000000',
+	font: 'Impact',
+	strokeThickness: 0
+});
+scoreTxt.anchor.set(.5, 0);
+LK.gui.topCenter.addChild(scoreTxt);
+var tutorialTxt = new Text2('Swipe to merge & merge', {
+	size: 120,
+	fill: '#000000',
+	font: 'Impact',
+	strokeThickness: 0
+});
+tutorialTxt.anchor.set(.5, 1);
+LK.gui.bottom.addChild(tutorialTxt);
+tutorialTxt.y -= 30;
+var toBeRemoved = [];
+game.addRandomTile = function () {
+	var emptyPositions = [];
 	for (var i = 0; i < gridSize; i++) {
 		for (var j = 0; j < gridSize; j++) {
-			squares[i][j] = null;
+			if (squares[i][j] === null) {
+				emptyPositions.push({
+					x: i,
+					y: j
+				});
+			}
 		}
 	}
-	var initialTiles = 2;
-	for (var i = 0; i < initialTiles; i++) {
-		var x, y;
-		do {
-			x = Math.floor(Math.random() * gridSize);
-			y = Math.floor(Math.random() * gridSize);
-		} while (squares[x][y] !== null);
-		var square = new Tile();
-		square.setPosition(x, y, true);
-		square.alpha = 1;
-		square.scale.set(1);
-		squares[x][y] = square;
+	if (emptyPositions.length > 0) {
+		var randomPosition = emptyPositions[Math.floor(Math.random() * emptyPositions.length)];
+		var newValue = Math.random() < 0.5 ? 2 : 4;
+		var square = new Tile(newValue);
+		square.setPosition(randomPosition.x, randomPosition.y, true);
+		squares[randomPosition.x][randomPosition.y] = square;
 		gridContainer.addChild(square);
+		LK.setScore(LK.getScore() + newValue);
 	}
-	var swipeStart = {
-		x: 0,
-		y: 0
-	};
-	var swipeEnd = {
-		x: 0,
-		y: 0
-	};
-	var boardChanged = false;
-	var winMessageShown = false;
-	self.moveTiles = function (direction) {
-		var dx = (direction === 'right') - (direction === 'left');
-		var dy = (direction === 'down') - (direction === 'up');
-		var moved = false;
-		do {
-			moved = false;
-			var iStart = dx > 0 ? gridSize - 1 : 0;
-			var iEnd = dx > 0 ? -1 : gridSize;
-			var iStep = dx > 0 ? -1 : 1;
-			var jStart = dy > 0 ? gridSize - 1 : 0;
-			var jEnd = dy > 0 ? -1 : gridSize;
-			var jStep = dy > 0 ? -1 : 1;
-			for (var i = iStart; i !== iEnd; i += iStep) {
-				for (var j = jStart; j !== jEnd; j += jStep) {
-					var x = i + dx;
-					var y = j + dy;
-					if (x >= 0 && x < gridSize && y >= 0 && y < gridSize && squares[i][j] !== null) {
-						if (squares[x][y] === null) {
-							squares[x][y] = squares[i][j];
-							squares[i][j] = null;
-							squares[x][y].setPosition(x, y);
-							moved = true;
+};
+game.mergeTiles = function (x1, y1, x2, y2) {
+	if (squares[x1][y1] !== null && squares[x2][y2] !== null && squares[x1][y1].value === squares[x2][y2].value && !squares[x1][y1].merged && !squares[x2][y2].merged) {
+		var newValue = squares[x2][y2].value * 2;
+		squares[x2][y2].setValue(newValue, true);
+		squares[x2][y2].merged = true;
+		squares[x1][y1].targetX = squares[x2][y2].targetX;
+		squares[x1][y1].targetY = squares[x2][y2].targetY;
+		toBeRemoved.push(squares[x1][y1]);
+		squares[x1][y1] = null;
+		gridContainer.removeChild(squares[x2][y2]);
+		gridContainer.addChild(squares[x2][y2]);
+		LK.setScore(LK.getScore() + newValue);
+		return true;
+	}
+	return false;
+};
+var gridSize = 4;
+game.setBackgroundColor(0xD3D3D3);
+var gridContainer = new Container();
+gridContainer.x = 44;
+gridContainer.y = 400;
+game.addChild(gridContainer);
+for (var i = 0; i < gridSize; i++) {
+	for (var j = 0; j < gridSize; j++) {
+		var gridTile = gridContainer.attachAsset('gridTile', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		gridTile.x = i * 500 + 250;
+		gridTile.y = j * 500 + 250;
+		gridTile.alpha = .1;
+	}
+}
+var squares = new Array(gridSize).fill().map(function () {
+	return new Array(gridSize).fill(null);
+});
+for (var i = 0; i < gridSize; i++) {
+	for (var j = 0; j < gridSize; j++) {
+		squares[i][j] = null;
+	}
+}
+var initialTiles = 2;
+for (var i = 0; i < initialTiles; i++) {
+	var x, y;
+	do {
+		x = Math.floor(Math.random() * gridSize);
+		y = Math.floor(Math.random() * gridSize);
+	} while (squares[x][y] !== null);
+	var square = new Tile();
+	square.setPosition(x, y, true);
+	square.alpha = 1;
+	square.scale.set(1);
+	squares[x][y] = square;
+	gridContainer.addChild(square);
+}
+var swipeStart = {
+	x: 0,
+	y: 0
+};
+var swipeEnd = {
+	x: 0,
+	y: 0
+};
+var boardChanged = false;
+var winMessageShown = false;
+game.moveTiles = function (direction) {
+	var dx = (direction === 'right') - (direction === 'left');
+	var dy = (direction === 'down') - (direction === 'up');
+	var moved = false;
+	do {
+		moved = false;
+		var iStart = dx > 0 ? gridSize - 1 : 0;
+		var iEnd = dx > 0 ? -1 : gridSize;
+		var iStep = dx > 0 ? -1 : 1;
+		var jStart = dy > 0 ? gridSize - 1 : 0;
+		var jEnd = dy > 0 ? -1 : gridSize;
+		var jStep = dy > 0 ? -1 : 1;
+		for (var i = iStart; i !== iEnd; i += iStep) {
+			for (var j = jStart; j !== jEnd; j += jStep) {
+				var x = i + dx;
+				var y = j + dy;
+				if (x >= 0 && x < gridSize && y >= 0 && y < gridSize && squares[i][j] !== null) {
+					if (squares[x][y] === null) {
+						squares[x][y] = squares[i][j];
+						squares[i][j] = null;
+						squares[x][y].setPosition(x, y);
+						moved = true;
+						boardChanged = true;
+					} else if (squares[x][y] !== null && squares[i][j] !== null && squares[x][y].value === squares[i][j].value) {
+						moved = game.mergeTiles(i, j, x, y);
+						if (moved) {
 							boardChanged = true;
-						} else if (squares[x][y] !== null && squares[i][j] !== null && squares[x][y].value === squares[i][j].value) {
-							moved = self.mergeTiles(i, j, x, y);
-							if (moved) boardChanged = true;
 						}
 					}
 				}
 			}
-		} while (moved);
-		for (var i = 0; i < gridSize; i++) {
-			for (var j = 0; j < gridSize; j++) {
-				if (squares[i][j] !== null) {
-					squares[i][j].merged = false;
-				}
+		}
+	} while (moved);
+	for (var i = 0; i < gridSize; i++) {
+		for (var j = 0; j < gridSize; j++) {
+			if (squares[i][j] !== null) {
+				squares[i][j].merged = false;
 			}
 		}
-	};
-	stage.on('down', function (obj) {
-		var anyTileMoving = squares.some(row => row.some(tile => tile && tile.isMoving));
-		if (!anyTileMoving) {
-			var pos = obj.event.getLocalPosition(self);
-			swipeStart = {
-				x: pos.x,
-				y: pos.y
-			};
-		}
+	}
+};
+game.on('down', function (obj) {
+	var anyTileMoving = squares.some(function (row) {
+		return row.some(function (tile) {
+			return tile && tile.isMoving;
+		});
 	});
-	stage.on('up', function (obj) {
-		var pos = obj.event.getLocalPosition(self);
-		swipeEnd = {
+	if (!anyTileMoving) {
+		var pos = obj.event.getLocalPosition(game);
+		swipeStart = {
 			x: pos.x,
 			y: pos.y
 		};
-		var dx = swipeEnd.x - swipeStart.x;
-		var dy = swipeEnd.y - swipeStart.y;
-		var threshold = 50;
-		if (Math.abs(dx) > threshold || Math.abs(dy) > threshold) {
-			if (Math.abs(dx) > Math.abs(dy)) {
-				if (dx > 0) {
-					self.moveTiles('right');
-				} else {
-					self.moveTiles('left');
-				}
+	}
+});
+game.on('up', function (obj) {
+	var pos = obj.event.getLocalPosition(game);
+	swipeEnd = {
+		x: pos.x,
+		y: pos.y
+	};
+	var dx = swipeEnd.x - swipeStart.x;
+	var dy = swipeEnd.y - swipeStart.y;
+	var threshold = 50;
+	if (Math.abs(dx) > threshold || Math.abs(dy) > threshold) {
+		if (Math.abs(dx) > Math.abs(dy)) {
+			if (dx > 0) {
+				game.moveTiles('right');
 			} else {
-				if (dy > 0) {
-					self.moveTiles('down');
-				} else {
-					self.moveTiles('up');
-				}
+				game.moveTiles('left');
 			}
-			if (tutorialTxt) {
-				LK.gui.bottom.removeChild(tutorialTxt);
-				tutorialTxt = null;
+		} else {
+			if (dy > 0) {
+				game.moveTiles('down');
+			} else {
+				game.moveTiles('up');
 			}
 		}
-	});
-	LK.on('tick', function () {
-		var allTilesStopped = true;
+		if (tutorialTxt) {
+			LK.gui.bottom.removeChild(tutorialTxt);
+			tutorialTxt = null;
+		}
+	}
+});
+LK.on('tick', function () {
+	var allTilesStopped = true;
+	for (var i = 0; i < gridSize; i++) {
+		for (var j = 0; j < gridSize; j++) {
+			if (squares[i][j] !== null) {
+				if (!squares[i][j].move()) {
+					allTilesStopped = false;
+				}
+			}
+		}
+	}
+	for (var i = 0; i < toBeRemoved.length; i++) {
+		if (!toBeRemoved[i].move()) {
+			allTilesStopped = false;
+		} else {
+			toBeRemoved[i].destroy();
+			toBeRemoved.splice(i, 1);
+			i--;
+		}
+	}
+	if (allTilesStopped) {
 		for (var i = 0; i < gridSize; i++) {
 			for (var j = 0; j < gridSize; j++) {
-				if (squares[i][j] !== null) {
-					if (!squares[i][j].move()) {
-						allTilesStopped = false;
+				if (squares[i][j] !== null && squares[i][j].newValue) {
+					squares[i][j].updateToRealValue();
+					if (squares[i][j].value === 2048 && !winMessageShown) {
+						var winMessage = new Text2('Congratulations\n you win!', {
+							size: 150,
+							fill: '#ffffff',
+							font: 'Sans-Serif',
+							weight: '800',
+							stroke: '#000000',
+							strokeThickness: 25,
+							align: 'center'
+						});
+						winMessage.anchor.set(0.5, 0.5);
+						LK.gui.center.addChild(winMessage);
+						winMessageShown = true;
+						LK.setTimeout(function () {
+							LK.gui.center.removeChild(winMessage);
+						}, 5000);
 					}
 				}
 			}
 		}
-		for (var i = 0; i < toBeRemoved.length; i++) {
-			if (!toBeRemoved[i].move()) {
-				allTilesStopped = false;
-			} else {
-				toBeRemoved[i].destroy();
-				toBeRemoved.splice(i, 1);
-				i--;
-			}
+		if (boardChanged) {
+			game.addRandomTile();
+			boardChanged = false;
+			var maxTileValue = Math.max.apply(Math, squares.map(function (row) {
+				return Math.max.apply(Math, row.map(function (tile) {
+					return tile ? tile.value : 0;
+				}));
+			}));
+			scoreTxt.setText(maxTileValue.toString());
 		}
-		if (allTilesStopped) {
+		if (!game.checkPossibleMoves()) {
 			for (var i = 0; i < gridSize; i++) {
 				for (var j = 0; j < gridSize; j++) {
-					if (squares[i][j] !== null && squares[i][j].newValue) {
-						squares[i][j].updateToRealValue();
-						if (squares[i][j].value === 2048 && !winMessageShown) {
-							var winMessage = new Text2('Congratulations\n you win!', {
-								size: 150,
-								fill: '#ffffff',
-								font: 'Sans-Serif',
-								weight: '800',
-								stroke: '#000000',
-								strokeThickness: 25,
-								align: 'center'
-							});
-							winMessage.anchor.set(0.5, 0.5);
-							LK.gui.center.addChild(winMessage);
-							winMessageShown = true;
-							LK.setTimeout(function () {
-								LK.gui.center.removeChild(winMessage);
-							}, 5000);
-						}
+					if (squares[i][j] !== null) {
+						squares[i][j].alpha = 1;
+						squares[i][j].scale.set(1);
 					}
 				}
 			}
-			if (boardChanged) {
-				self.addRandomTile();
-				boardChanged = false;
-				var maxTileValue = Math.max.apply(Math, squares.map(function (row) {
-					return Math.max.apply(Math, row.map(function (tile) {
-						return tile ? tile.value : 0;
-					}));
-				}));
-				scoreTxt.setText(maxTileValue.toString());
-			}
-			if (!self.checkPossibleMoves()) {
-				for (var i = 0; i < gridSize; i++) {
-					for (var j = 0; j < gridSize; j++) {
-						if (squares[i][j] !== null) {
-							squares[i][j].alpha = 1;
-							squares[i][j].scale.set(1);
-						}
-					}
-				}
-				LK.showGameOver();
-			}
+			LK.showGameOver();
 		}
-	});
-});
+	}
+});
\ No newline at end of file