/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocity = 0;
	self.gravity = 0.8;
	self.flapPower = -12;
	self.maxFallSpeed = 15;
	self.maxRiseSpeed = -15;
	self.flap = function () {
		self.velocity = self.flapPower;
		LK.getSound('flap').play();
		// Rotate bird upward when flapping
		tween(birdGraphics, {
			rotation: -0.5
		}, {
			duration: 200
		});
	};
	self.update = function () {
		// Apply gravity
		self.velocity += self.gravity;
		// Limit velocity
		if (self.velocity > self.maxFallSpeed) {
			self.velocity = self.maxFallSpeed;
		}
		if (self.velocity < self.maxRiseSpeed) {
			self.velocity = self.maxRiseSpeed;
		}
		// Update position
		self.y += self.velocity;
		// Rotate bird based on velocity
		var targetRotation = self.velocity * 0.1;
		if (targetRotation > 1.5) targetRotation = 1.5;
		if (targetRotation < -0.5) targetRotation = -0.5;
		tween(birdGraphics, {
			rotation: targetRotation
		}, {
			duration: 100
		});
	};
	return self;
});
var Pipe = Container.expand(function () {
	var self = Container.call(this);
	self.speed = -4;
	self.scored = false;
	self.gapHeight = 300;
	// Create top pipe
	self.topPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 1
	});
	// Create bottom pipe
	self.bottomPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.setGapPosition = function (centerY) {
		self.topPipe.y = centerY - self.gapHeight / 2;
		self.bottomPipe.y = centerY + self.gapHeight / 2;
	};
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
var bird;
var pipes = [];
var ground;
var gameStarted = false;
var pipeSpawnTimer = 0;
var pipeSpawnInterval = 90; // Spawn pipe every 1.5 seconds at 60fps
// Create score display
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 50;
// Create ground
ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
}));
ground.x = 0;
ground.y = 2732 - 100;
ground.width = 2048 * 3; // Make ground wider for scrolling effect
ground.scrollSpeed = -2;
// Create bird
bird = game.addChild(new Bird());
bird.x = 300;
bird.y = 1366; // Middle of screen
bird.startY = 1366;
bird.floatTime = 0;
// Add gentle floating animation before game starts
bird.updateFloat = function () {
	if (!gameStarted) {
		bird.floatTime += 0.1;
		bird.y = bird.startY + Math.sin(bird.floatTime) * 20;
	}
};
// Create instruction text
var instructionTxt = new Text2('TAP TO FLAP', {
	size: 60,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.x = 1024;
instructionTxt.y = 1000;
game.addChild(instructionTxt);
function startGame() {
	gameStarted = true;
	instructionTxt.visible = false;
	bird.flap();
}
function spawnPipe() {
	var pipe = new Pipe();
	pipe.x = 2048 + 60; // Start off screen
	// Random gap position (avoid too high or too low)
	var minGapCenter = 200;
	var maxGapCenter = 2732 - 200 - 100; // Account for ground
	var gapCenter = minGapCenter + Math.random() * (maxGapCenter - minGapCenter);
	pipe.setGapPosition(gapCenter);
	pipes.push(pipe);
	game.addChild(pipe);
}
function checkCollisions() {
	// Check ground collision
	if (bird.y + 30 > ground.y) {
		gameOver();
		return;
	}
	// Check ceiling collision
	if (bird.y - 30 < 0) {
		gameOver();
		return;
	}
	// Check pipe collisions
	for (var i = 0; i < pipes.length; i++) {
		var pipe = pipes[i];
		// Check if bird is in pipe's x range
		if (bird.x + 30 > pipe.x - 60 && bird.x - 30 < pipe.x + 60) {
			// Check collision with top pipe
			if (bird.y - 22 < pipe.topPipe.y) {
				gameOver();
				return;
			}
			// Check collision with bottom pipe
			if (bird.y + 22 > pipe.bottomPipe.y) {
				gameOver();
				return;
			}
		}
		// Check for scoring
		if (!pipe.scored && bird.x > pipe.x + 60) {
			pipe.scored = true;
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore());
			LK.getSound('score').play();
			// Flash score text when scoring
			LK.effects.flashObject(scoreTxt, 0xFFD700, 300);
		}
	}
}
function gameOver() {
	LK.getSound('hit').play();
	LK.showGameOver();
}
function cleanupPipes() {
	for (var i = pipes.length - 1; i >= 0; i--) {
		var pipe = pipes[i];
		if (pipe.x < -120) {
			pipe.destroy();
			pipes.splice(i, 1);
		}
	}
}
// Touch controls
game.down = function (x, y, obj) {
	if (!gameStarted) {
		startGame();
	} else {
		bird.flap();
	}
};
// Game update loop
game.update = function () {
	// Update bird floating animation
	bird.updateFloat();
	if (!gameStarted) {
		return;
	}
	// Scroll ground for visual effect
	ground.x += ground.scrollSpeed;
	if (ground.x <= -2048) {
		ground.x = 0;
	}
	// Spawn pipes
	pipeSpawnTimer++;
	if (pipeSpawnTimer >= pipeSpawnInterval) {
		spawnPipe();
		pipeSpawnTimer = 0;
	}
	// Check collisions
	checkCollisions();
	// Clean up off-screen pipes
	cleanupPipes();
};

===================================================================
--- original.js
+++ change.js
@@ -106,12 +106,23 @@
 	anchorY: 0
 }));
 ground.x = 0;
 ground.y = 2732 - 100;
+ground.width = 2048 * 3; // Make ground wider for scrolling effect
+ground.scrollSpeed = -2;
 // Create bird
 bird = game.addChild(new Bird());
 bird.x = 300;
 bird.y = 1366; // Middle of screen
+bird.startY = 1366;
+bird.floatTime = 0;
+// Add gentle floating animation before game starts
+bird.updateFloat = function () {
+	if (!gameStarted) {
+		bird.floatTime += 0.1;
+		bird.y = bird.startY + Math.sin(bird.floatTime) * 20;
+	}
+};
 // Create instruction text
 var instructionTxt = new Text2('TAP TO FLAP', {
 	size: 60,
 	fill: 0xFFFFFF
@@ -168,8 +179,10 @@
 			pipe.scored = true;
 			LK.setScore(LK.getScore() + 1);
 			scoreTxt.setText(LK.getScore());
 			LK.getSound('score').play();
+			// Flash score text when scoring
+			LK.effects.flashObject(scoreTxt, 0xFFD700, 300);
 		}
 	}
 }
 function gameOver() {
@@ -194,11 +207,18 @@
 	}
 };
 // Game update loop
 game.update = function () {
+	// Update bird floating animation
+	bird.updateFloat();
 	if (!gameStarted) {
 		return;
 	}
+	// Scroll ground for visual effect
+	ground.x += ground.scrollSpeed;
+	if (ground.x <= -2048) {
+		ground.x = 0;
+	}
 	// Spawn pipes
 	pipeSpawnTimer++;
 	if (pipeSpawnTimer >= pipeSpawnInterval) {
 		spawnPipe();