===================================================================
--- original.js
+++ change.js
@@ -1,63 +1,63 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // Class for obstacles
 var Obstacle = Container.expand(function () {
-  var self = Container.call(this);
-  var obstacleGraphics = self.attachAsset('obstacle', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 5;
-  // Update method for obstacle
-  self.update = function () {
-    self.y += self.speed;
-    if (self.y > 2732) {
-      self.destroy();
-    }
-  };
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 5;
+	// Update method for obstacle
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.destroy();
+		}
+	};
 });
 //<Assets used in the game will automatically appear here>
 // Class for the main character (runner)
 var Runner = Container.expand(function () {
-  var self = Container.call(this);
-  var runnerGraphics = self.attachAsset('runner', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 10;
-  self.lane = 1; // Start in the middle lane
-  // Method to move the runner left
-  self.moveLeft = function () {
-    if (self.lane > 0) {
-      self.lane--;
-      self.x -= 300; // Move to the left lane
-    }
-  };
-  // Method to move the runner right
-  self.moveRight = function () {
-    if (self.lane < 2) {
-      self.lane++;
-      self.x += 300; // Move to the right lane
-    }
-  };
-  // Update method for runner
-  self.update = function () {
-    // Add any continuous updates for the runner here
-  };
+	var self = Container.call(this);
+	var runnerGraphics = self.attachAsset('runner', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 10;
+	self.lane = 1; // Start in the middle lane
+	// Method to move the runner left
+	self.moveLeft = function () {
+		if (self.lane > 0) {
+			self.lane--;
+			self.x -= 300; // Move to the left lane
+		}
+	};
+	// Method to move the runner right
+	self.moveRight = function () {
+		if (self.lane < 2) {
+			self.lane++;
+			self.x += 300; // Move to the right lane
+		}
+	};
+	// Update method for runner
+	self.update = function () {
+		// Add any continuous updates for the runner here
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background 
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 // Initialize runner
 var runner = new Runner();
 runner.x = 1024; // Center lane
 runner.y = 2300; // Near the bottom of the screen
@@ -65,35 +65,35 @@
 // Array to hold obstacles
 var obstacles = [];
 // Function to create a new obstacle
 function createObstacle() {
-  var obstacle = new Obstacle();
-  obstacle.x = 1024 + (Math.floor(Math.random() * 3) - 1) * 300; // Random lane
-  obstacle.y = -100; // Start above the screen
-  obstacles.push(obstacle);
-  game.addChild(obstacle);
+	var obstacle = new Obstacle();
+	obstacle.x = 1024 + (Math.floor(Math.random() * 3) - 1) * 300; // Random lane
+	obstacle.y = -100; // Start above the screen
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
 }
 // Handle touch events for moving the runner
 game.down = function (x, y, obj) {
-  if (x < 1024) {
-    runner.moveLeft();
-  } else {
-    runner.moveRight();
-  }
+	if (x < game.width / 2) {
+		runner.moveLeft();
+	} else {
+		runner.moveRight();
+	}
 };
 // Game update loop
 game.update = function () {
-  // Update runner
-  runner.update();
-  // Update obstacles
-  for (var i = obstacles.length - 1; i >= 0; i--) {
-    obstacles[i].update();
-    if (obstacles[i].intersects(runner)) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-  }
-  // Create new obstacles periodically
-  if (LK.ticks % 60 == 0) {
-    createObstacle();
-  }
+	// Update runner
+	runner.update();
+	// Update obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		obstacles[i].update();
+		if (obstacles[i].intersects(runner)) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+	}
+	// Create new obstacles periodically
+	if (LK.ticks % 60 == 0) {
+		createObstacle();
+	}
 };
\ No newline at end of file