===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,219 @@
-/****
+/**** 
+* Classes
+****/ 
+var Bird = Container.expand(function () {
+	var self = Container.call(this);
+	// Create bird sprite
+	var birdGraphics = self.attachAsset('bird', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Physics properties
+	self.velocity = 0;
+	self.gravity = 0.5;
+	self.flapStrength = -10;
+	self.rotation = 0;
+	self.lastY = 0;
+	self.isDead = false;
+	// Flap the bird (jump)
+	self.flap = function () {
+		if (self.isDead) return;
+		self.velocity = self.flapStrength;
+		LK.getSound('flap').play();
+	};
+	// Update bird position and rotation
+	self.update = function () {
+		self.lastY = self.y;
+		if (!self.isDead) {
+			// Apply gravity and update position
+			self.velocity += self.gravity;
+			self.y += self.velocity;
+			// Update rotation based on velocity
+			var targetRotation = Math.min(Math.PI / 4, Math.max(-Math.PI / 4, self.velocity * 0.05));
+			self.rotation += (targetRotation - self.rotation) * 0.2;
+			birdGraphics.rotation = self.rotation;
+		}
+	};
+	// Handle collision
+	self.die = function () {
+		self.isDead = true;
+		LK.getSound('hit').play();
+	};
+	return self;
+});
+var Pipe = Container.expand(function () {
+	var self = Container.call(this);
+	// Pipe properties
+	self.speed = 4;
+	self.scored = false;
+	self.lastX = 0;
+	// Create top and bottom pipes
+	var topPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	var bottomPipe = self.attachAsset('pipe', {
+		anchorX: 0.5,
+		anchorY: 0.0
+	});
+	// Setup pipe gap 
+	self.setGapPosition = function (gapY, gapHeight) {
+		topPipe.y = gapY - gapHeight / 2;
+		bottomPipe.y = gapY + gapHeight / 2;
+	};
+	// Update pipe position
+	self.update = function () {
+		self.lastX = self.x;
+		self.x -= self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
+// Game constants
 var game = new LK.Game({
 	backgroundColor: 0x000000
-});
\ No newline at end of file
+});
+
+/**** 
+* Game Code
+****/ 
+// Game constants
+// Initialize assets for the game
+var GROUND_Y = 2732 - 100;
+var GAME_WIDTH = 2048;
+var GAP_HEIGHT = 300;
+var PIPE_DISTANCE = 400;
+var PIPE_SPAWN_X = GAME_WIDTH + 100;
+// Game state variables
+var gameStarted = false;
+var gameOver = false;
+var pipes = [];
+var score = 0;
+var groundOffset = 0;
+// Set sky background color
+game.setBackgroundColor(0x87CEEB);
+// Create ground
+var ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0,
+	x: 0,
+	y: GROUND_Y
+}));
+// Create a second ground piece for infinite scrolling
+var ground2 = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0,
+	x: GAME_WIDTH,
+	y: GROUND_Y
+}));
+// Create player bird
+var bird = game.addChild(new Bird());
+bird.x = GAME_WIDTH * 0.3;
+bird.y = GROUND_Y * 0.5;
+// Score display
+var scoreTxt = new Text2('0', {
+	size: 150,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+scoreTxt.y = 50;
+// Create a pipe at the specified position
+function createPipe() {
+	var pipe = new Pipe();
+	pipe.x = PIPE_SPAWN_X;
+	// Random gap position (ensure it's not too close to top or bottom)
+	var minGapY = 300;
+	var maxGapY = GROUND_Y - 300;
+	var gapY = minGapY + Math.random() * (maxGapY - minGapY);
+	pipe.setGapPosition(gapY, GAP_HEIGHT);
+	pipes.push(pipe);
+	game.addChild(pipe);
+}
+// Event handlers
+game.down = function (x, y, obj) {
+	if (!gameStarted) {
+		gameStarted = true;
+	}
+	if (!gameOver) {
+		bird.flap();
+	}
+};
+// Check for collisions
+function checkCollisions() {
+	// Check if bird hit the ground
+	if (bird.y + bird.height / 2 >= GROUND_Y) {
+		bird.y = GROUND_Y - bird.height / 2;
+		if (!gameOver) {
+			gameOver = true;
+			bird.die();
+			LK.showGameOver();
+		}
+		return true;
+	}
+	// Check if bird flew too high
+	if (bird.y - bird.height / 2 <= 0) {
+		bird.y = bird.height / 2;
+		bird.velocity = 0;
+	}
+	// Check collision with pipes
+	for (var i = 0; i < pipes.length; i++) {
+		var pipe = pipes[i];
+		// Top and bottom pipe children
+		var topPipe = pipe.getChildAt(0);
+		var bottomPipe = pipe.getChildAt(1);
+		// Check if bird collides with either pipe
+		if (bird.intersects(topPipe) || bird.intersects(bottomPipe)) {
+			if (!gameOver) {
+				gameOver = true;
+				bird.die();
+				LK.showGameOver();
+			}
+			return true;
+		}
+		// Score point when passing pipe
+		if (!pipe.scored && pipe.lastX >= bird.x && pipe.x < bird.x) {
+			pipe.scored = true;
+			score++;
+			LK.setScore(score);
+			scoreTxt.setText(score.toString());
+			LK.getSound('score').play();
+		}
+	}
+	return false;
+}
+// Game update loop
+game.update = function () {
+	if (!gameStarted) {
+		// Bobbing animation before game starts
+		bird.y = GROUND_Y * 0.5 + Math.sin(LK.ticks * 0.05) * 20;
+		return;
+	}
+	// Update bird
+	bird.update();
+	if (!gameOver) {
+		// Infinite scrolling ground
+		groundOffset = (groundOffset + 4) % GAME_WIDTH;
+		ground.x = -groundOffset;
+		ground2.x = GAME_WIDTH - groundOffset;
+		// Update pipes
+		for (var i = pipes.length - 1; i >= 0; i--) {
+			var pipe = pipes[i];
+			pipe.update();
+			// Remove pipes that are off screen
+			if (pipe.x < -200) {
+				pipe.destroy();
+				pipes.splice(i, 1);
+			}
+		}
+		// Create new pipes
+		if (LK.ticks % 100 === 0 || pipes.length === 0) {
+			createPipe();
+		}
+		// Check for collisions
+		checkCollisions();
+	}
+};
\ No newline at end of file