===================================================================
--- original.js
+++ change.js
@@ -1,42 +1,48 @@
-/****
+/**** 
 * Classes
 ****/
 // Player class
 var Player = Container.expand(function () {
-  var self = Container.call(this);
-  var playerGraphics = self.createAsset('player', 'Player character', 0.5, 1);
-  self.speed = 5;
-  self.moveLeft = function () {
-    if (self.x > 0) {
-      self.x -= self.speed;
-    }
-  };
-  self.moveRight = function () {
-    if (self.x < 2048 - playerGraphics.width) {
-      self.x += self.speed;
-    }
-  };
+	var self = Container.call(this);
+	var playerGraphics = self.createAsset('player', 'Player character', 0.5, 1);
+	self.speed = 10;
+	self.moveLeft = function () {
+		if (self.x > self.speed) {
+			self.x -= self.speed;
+		} else {
+			self.x = 0;
+		}
+	};
+	self.moveRight = function () {
+		if (self.x < 2048 - playerGraphics.width - self.speed) {
+			self.x += self.speed;
+		} else {
+			self.x = 2048 - playerGraphics.width;
+		}
+	};
 });
 // Apple class
 var Apple = Container.expand(function () {
-  var self = Container.call(this);
-  var appleGraphics = self.createAsset('apple', 'Falling apple', 0.5, 0.5);
-  self.speed = 3;
-  self.move = function () {
-    self.y += self.speed;
-  };
-  self.isCaught = function (player) {
-    return self.intersects(player);
-  };
+	var self = Container.call(this);
+	var appleGraphics = self.createAsset('apple', 'Falling apple', 0.5, 0.5);
+	self.speed = 3;
+	self.move = function () {
+		self.y += self.speed;
+	};
+	self.isCaught = function (player) {
+		return self.intersects(player);
+	};
 });
-/****
+
+/**** 
 * Initialize Game
 ****/
 var game = new LK.Game({
-  backgroundColor: 0x000000 // Init game with black background
+	backgroundColor: 0x000000 // Init game with black background
 });
-/****
+
+/**** 
 * Game Code
 ****/
 // Initialize player
 var player = game.addChild(new Player());
@@ -47,44 +53,45 @@
 var apples = [];
 
 // Handle touch movement
 function handleTouchMove(obj) {
-  var touchPos = obj.event.getLocalPosition(game);
-  if (touchPos.x < player.x) {
-    player.moveLeft();
-  } else if (touchPos.x > player.x) {
-    player.moveRight();
-  }
+	var touchPos = obj.event.getLocalPosition(game);
+	var playerCenterX = player.x + player.width / 2;
+	if (touchPos.x < playerCenterX) {
+		player.moveLeft();
+	} else if (touchPos.x > playerCenterX) {
+		player.moveRight();
+	}
 }
 
 // Attach touch move event to the game
 game.on('move', handleTouchMove);
 
 // Game tick event
 LK.on('tick', function () {
-  // Move apples
-  for (var i = apples.length - 1; i >= 0; i--) {
-    apples[i].move();
-    // Check if apple is caught by the player
-    if (apples[i].isCaught(player)) {
-      // Increase score
-      LK.setScore(LK.getScore() + 1);
-      // Remove caught apple
-      apples[i].destroy();
-      apples.splice(i, 1);
-    } else if (apples[i].y > 2732) {
-      // Remove apple if it falls off the screen
-      apples[i].destroy();
-      apples.splice(i, 1);
-    }
-  }
+	// Move apples
+	for (var i = apples.length - 1; i >= 0; i--) {
+		apples[i].move();
+		// Check if apple is caught by the player
+		if (apples[i].isCaught(player)) {
+			// Increase score
+			LK.setScore(LK.getScore() + 1);
+			// Remove caught apple
+			apples[i].destroy();
+			apples.splice(i, 1);
+		} else if (apples[i].y > 2732) {
+			// Remove apple if it falls off the screen
+			apples[i].destroy();
+			apples.splice(i, 1);
+		}
+	}
 
-  // Spawn apples
-  if (LK.ticks % 60 == 0) {
-    // Every second
-    var newApple = new Apple();
-    newApple.x = Math.random() * 2048;
-    newApple.y = -50; // Start off-screen
-    apples.push(newApple);
-    game.addChild(newApple);
-  }
+	// Spawn apples
+	if (LK.ticks % 60 == 0) {
+		// Every second
+		var newApple = new Apple();
+		newApple.x = Math.random() * 2048;
+		newApple.y = -50; // Start off-screen
+		apples.push(newApple);
+		game.addChild(newApple);
+	}
 });
\ No newline at end of file