/**** 
* 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.flap = function () {
		self.velocity = self.flapPower;
		LK.getSound('flap').play();
		// Add flap animation
		birdGraphics.rotation = -0.3;
		tween(birdGraphics, {
			rotation: 0.3
		}, {
			duration: 300
		});
	};
	self.update = function () {
		self.velocity += self.gravity;
		self.y += self.velocity;
		// Rotate bird based on velocity
		birdGraphics.rotation = Math.max(-0.5, Math.min(0.5, self.velocity * 0.05));
	};
	return self;
});
var Pipe = Container.expand(function () {
	var self = Container.call(this);
	self.gapSize = 300;
	self.speed = 4;
	self.scored = false;
	var topPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 1
	});
	var bottomPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.setGapPosition = function (gapY) {
		topPipe.y = gapY - self.gapSize / 2;
		bottomPipe.y = gapY + self.gapSize / 2;
	};
	self.update = function () {
		self.x -= self.speed;
	};
	self.checkCollision = function (bird) {
		var birdBounds = {
			x: bird.x - 30,
			y: bird.y - 30,
			width: 60,
			height: 60
		};
		var topPipeBounds = {
			x: self.x - 60,
			y: topPipe.y - 400,
			width: 120,
			height: 400
		};
		var bottomPipeBounds = {
			x: self.x - 60,
			y: bottomPipe.y,
			width: 120,
			height: 400
		};
		return birdBounds.x < topPipeBounds.x + topPipeBounds.width && birdBounds.x + birdBounds.width > topPipeBounds.x && birdBounds.y < topPipeBounds.y + topPipeBounds.height && birdBounds.y + birdBounds.height > topPipeBounds.y || birdBounds.x < bottomPipeBounds.x + bottomPipeBounds.width && birdBounds.x + birdBounds.width > bottomPipeBounds.x && birdBounds.y < bottomPipeBounds.y + bottomPipeBounds.height && birdBounds.y + birdBounds.height > bottomPipeBounds.y;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var bird = game.addChild(new Bird());
bird.x = 400;
bird.y = 1366;
var ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
}));
ground.x = 0;
ground.y = 2632;
var pipes = [];
var pipeSpawnTimer = 0;
var pipeSpawnInterval = 120; // Spawn pipe every 2 seconds at 60fps
var gameStarted = false;
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var instructionTxt = new Text2('TAP TO START', {
	size: 60,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.x = 1024;
instructionTxt.y = 800;
game.addChild(instructionTxt);
game.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		game.removeChild(instructionTxt);
	}
	bird.flap();
};
game.update = function () {
	if (!gameStarted) return;
	// Check if bird hits ground or ceiling
	if (bird.y > 2632 || bird.y < 0) {
		LK.showGameOver();
		return;
	}
	// Spawn pipes
	pipeSpawnTimer++;
	if (pipeSpawnTimer >= pipeSpawnInterval) {
		pipeSpawnTimer = 0;
		var newPipe = new Pipe();
		newPipe.x = 2048 + 60;
		var gapY = Math.random() * (2000 - 600) + 600; // Random gap between y=600 and y=2000
		newPipe.setGapPosition(gapY);
		pipes.push(newPipe);
		game.addChild(newPipe);
	}
	// Update and check pipes
	for (var i = pipes.length - 1; i >= 0; i--) {
		var pipe = pipes[i];
		// Check collision
		if (pipe.checkCollision(bird)) {
			LK.showGameOver();
			return;
		}
		// Check scoring
		if (!pipe.scored && bird.x > pipe.x) {
			pipe.scored = true;
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore().toString());
			LK.getSound('score').play();
		}
		// Remove pipes that are off-screen
		if (pipe.x < -120) {
			pipe.destroy();
			pipes.splice(i, 1);
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -98,9 +98,9 @@
 ground.x = 0;
 ground.y = 2632;
 var pipes = [];
 var pipeSpawnTimer = 0;
-var pipeSpawnInterval = 90; // Spawn pipe every 1.5 seconds at 60fps
+var pipeSpawnInterval = 120; // Spawn pipe every 2 seconds at 60fps
 var gameStarted = false;
 var scoreTxt = new Text2('0', {
 	size: 80,
 	fill: 0xFFFFFF