===================================================================
--- original.js
+++ change.js
@@ -1,105 +1,171 @@
-/****
+/**** 
 * Classes
-****/
-// Assets will be automatically generated based on usage in the code.
-// Athlete class
+****/ 
+/****************************************************************************************** */ 
+/**************************************** CLASSES ***************************************** */
+/****************************************************************************************** */ 
+/****************************************************************************************** */ 
+/************************************* ATHLETE CLASS ************************************** */
+/****************************************************************************************** */ 
 var Athlete = Container.expand(function () {
-  var self = Container.call(this);
-  var athleteGraphics = self.attachAsset('athlete', {
-    anchorX: 0.5,
-    anchorY: 1.0 // Anchor at the bottom center for realistic jumping
-  });
-  self.speedX = 5;
-  self.jumpSpeed = -15;
-  self.gravity = 0.5;
-  self.isOnGround = true;
-  self.moveRight = function () {
-    self.x += self.speedX;
-  };
-  self.jump = function () {
-    if (self.isOnGround) {
-      self.isOnGround = false;
-      self.speedY = self.jumpSpeed;
-    }
-  };
-  self.update = function () {
-    if (!self.isOnGround) {
-      self.y += self.speedY;
-      self.speedY += self.gravity;
-      if (self.y >= game.groundLevel) {
-        self.y = game.groundLevel;
-        self.isOnGround = true;
-      }
-    }
-  };
+	var self = Container.call(this);
+	var athleteGraphics = self.attachAsset('athlete', {
+		anchorX: 0.5,
+		anchorY: 1.0 // Anchor at the bottom center for realistic jumping
+	});
+	self.speedX = 5;
+	self.jumpSpeed = -15;
+	self.gravity = 0.5;
+	self.isOnGround = true;
+	self.moveRight = function () {
+		self.x += self.speedX;
+	};
+	self.jump = function () {
+		if (self.isOnGround) {
+			self.isOnGround = false;
+			self.speedY = self.jumpSpeed;
+		}
+	};
+	self.update = function () {
+		if (!self.isOnGround) {
+			self.y += self.speedY;
+			self.speedY += self.gravity;
+			if (self.y >= game.groundLevel) {
+				self.y = game.groundLevel;
+				self.isOnGround = true;
+			}
+		}
+	};
 });
+/****************************************************************************************** */ 
+/************************************** OBSTACLE CLASS ************************************ */
+/****************************************************************************************** */ 
 // Obstacle class
 var Obstacle = Container.expand(function () {
-  var self = Container.call(this);
-  var obstacleGraphics = self.attachAsset('obstacle', {
-    anchorX: 0.5,
-    anchorY: 1.0 // Anchor at the bottom for collision detection
-  });
-  self.speedX = -5;
-  self.move = function () {
-    self.x += self.speedX;
-  };
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 1.0 // Anchor at the bottom for collision detection
+	});
+	self.speedX = -5;
+	self.move = function () {
+		self.x += self.speedX;
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x87CEEB // Light blue background to represent the sky
+	backgroundColor: 0x87CEEB // Light blue background to represent the sky
 });
 
-/****
+/**** 
 * Game Code
-****/
-// Global variables
+****/ 
+/****************************************************************************************** */ 
+/************************************** GLOBAL VARIABLES ********************************** */
+/****************************************************************************************** */ 
+// Enumeration for game states
+var GAME_STATE = {
+	INIT: 'INIT',
+	MENU: 'MENU',
+	HELP: 'HELP',
+	STARTING: 'STARTING',
+	NEW_ROUND: 'NEW_ROUND',
+	PLAYING: 'PLAYING',
+	SCORE: 'SCORE'
+};
+var gameState = GAME_STATE.INIT;
 var athlete;
 var obstacles = [];
 var groundLevel = 2732 - 200; // Ground level set 200px from the bottom
 var obstacleSpawnTicker = 0;
 var obstacleSpawnRate = 120; // Spawn an obstacle every 2 seconds
-// Initialize athlete
-athlete = game.addChild(new Athlete());
-athlete.x = 400;
-athlete.y = groundLevel;
-// Set the ground level globally accessible within the game instance
-game.groundLevel = groundLevel;
+var isDebug = true;
+/****************************************************************************************** */ 
+/************************************** POSTURES ****************************************** */
+/****************************************************************************************** */ 
+/****************************************************************************************** */ 
+/*********************************** UTILITY FUNCTIONS ************************************ */
+/****************************************************************************************** */ 
+function log() {
+	if (isDebug) {
+		var _console;
+		(_console = console).log.apply(_console, arguments);
+	}
+}
+/****************************************************************************************** */ 
+/************************************** INPUT HANDLERS ************************************ */
+/****************************************************************************************** */ 
 // Touch event to make the athlete jump
 game.on('down', function () {
-  athlete.jump();
+	athlete.jump();
 });
-// Game tick event
+/****************************************************************************************** */ 
+/************************************* AI FUNCTIONS *************************************** */
+/****************************************************************************************** */ 
+/****************************************************************************************** */ 
+/************************************* GAME STATES **************************************** */
+/****************************************************************************************** */ 
+function gameInitialize() {
+	log("Game initialize...");
+	// Initialize athlete
+	athlete = game.addChild(new Athlete());
+	athlete.x = 400;
+	athlete.y = groundLevel;
+	// Set the ground level globally accessible within the game instance
+	game.groundLevel = groundLevel;
+}
+function gamePlaying() {
+	log("Game playing...");
+	athlete.update();
+	// Move obstacles and check for off-screen
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		obstacles[i].move();
+		// Remove obstacle if it moves off-screen
+		if (obstacles[i].x < -100) {
+			// Assuming obstacle width is less than 100px
+			obstacles[i].destroy();
+			obstacles.splice(i, 1);
+		}
+	}
+	// Spawn obstacles
+	obstacleSpawnTicker++;
+	if (obstacleSpawnTicker >= obstacleSpawnRate) {
+		obstacleSpawnTicker = 0;
+		var newObstacle = new Obstacle();
+		newObstacle.x = 2048; // Start from the right edge
+		newObstacle.y = groundLevel;
+		obstacles.push(newObstacle);
+		game.addChild(newObstacle);
+	}
+	// Check for collisions
+	obstacles.forEach(function (obstacle) {
+		if (athlete.intersects(obstacle)) {
+			LK.effects.flashScreen(0xff0000, 500); // Flash screen red for half a second
+			LK.showGameOver(); // Show game over screen
+		}
+	});
+	gameState = GAME_STATE.PLAYING;
+}
+/****************************************************************************************** */ 
+/************************************** MAIN GAME LOOP ************************************ */
+/****************************************************************************************** */ 
 LK.on('tick', function () {
-  athlete.update();
-  // Move obstacles and check for off-screen
-  for (var i = obstacles.length - 1; i >= 0; i--) {
-    obstacles[i].move();
-    // Remove obstacle if it moves off-screen
-    if (obstacles[i].x < -100) {
-      // Assuming obstacle width is less than 100px
-      obstacles[i].destroy();
-      obstacles.splice(i, 1);
-    }
-  }
-  // Spawn obstacles
-  obstacleSpawnTicker++;
-  if (obstacleSpawnTicker >= obstacleSpawnRate) {
-    obstacleSpawnTicker = 0;
-    var newObstacle = new Obstacle();
-    newObstacle.x = 2048; // Start from the right edge
-    newObstacle.y = groundLevel;
-    obstacles.push(newObstacle);
-    game.addChild(newObstacle);
-  }
-  // Check for collisions
-  obstacles.forEach(function (obstacle) {
-    if (athlete.intersects(obstacle)) {
-      LK.effects.flashScreen(0xff0000, 500); // Flash screen red for half a second
-      LK.showGameOver(); // Show game over screen
-    }
-  });
-});
\ No newline at end of file
+	switch (gameState) {
+		case GAME_STATE.MENU:
+			// Handle menu logic here
+			break;
+		case GAME_STATE.STARTING:
+			// Handle game starting logic here
+			break;
+		case GAME_STATE.PLAYING:
+			gamePlaying();
+			break;
+		case GAME_STATE.SCORE:
+			// Handle score display logic here
+			break;
+	}
+});
+gameInitialize();
\ No newline at end of file