/**** 
* 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.xSpeed = 10.9375;
	self.ySpeed = -20;
	self.gravity = 1;
	self.lift = -15;
	self.flap = function () {
		self.ySpeed = self.lift * 1.5;
	};
	self._update_migrated = function () {
		if (game.isMouseDown) {
			self.ySpeed += self.gravity / 3;
		} else {
			self.ySpeed += self.gravity;
		}
		self.y += self.ySpeed;
		self.x += self.xSpeed;
		if (self.y <= 0 || self.y >= 2732) {
			self.speed = -self.speed;
		}
		var targetRotation = Math.atan2(self.ySpeed, self.xSpeed * self.scale.x) / 2;
		birdGraphics.rotation += (targetRotation - birdGraphics.rotation) / 10;
	};
	self.lastFlowerCollision = {};
	self.flip = function () {
		self.scale.x *= -1;
	};
});
var Flower = Container.expand(function () {
	var self = Container.call(this);
	var flowerStem = self.attachAsset('flowerStem', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var flowerHead = self.attachAsset('flower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	flowerHead.y = -1400;
});
var FlowerObstacle = Container.expand(function () {
	var self = Container.call(this);
	var flowerHead = self.attachAsset('flower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self._move_migrated = function (speed) {
		self.y += speed;
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	obstacleGraphics.rotation = Math.PI / 4;
	self.speed = 5;
	self._move_migrated = function (speed) {
		self.y += speed;
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
var tutorialTextWhite = new Text2('Tap to Flap\nHold to Float', {
	size: 150,
	fill: '#ffffff',
	font: 'Impact',
	align: 'center'
});
tutorialTextWhite.anchor.set(.5, 1);
tutorialTextWhite.x = -4;
tutorialTextWhite.y = -62;
LK.gui.bottom.addChild(tutorialTextWhite);
var tutorialText = new Text2('Tap to Flap\nHold to Float', {
	size: 150,
	fill: '#3a84f7',
	font: 'Impact',
	dropShadow: true,
	dropShadowColor: '#222a9a',
	dropShadowBlur: 5,
	dropShadowDistance: 7,
	dropShadowAngle: 0,
	align: 'center'
});
tutorialText.anchor.set(.5, 1);
tutorialText.y = -50;
LK.gui.bottom.addChild(tutorialText);
game.score = 0;
game.obstacleSpeed = 5;
game.obstacleSpeedIncrease = 0.005;
LK.playMusic('bgMusic');
game.checkObstacleCollision = function (obstacles) {
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i]._move_migrated();
		var dist = Math.sqrt(Math.pow(bird.x - obstacles[i].x, 2) + Math.pow(bird.y - obstacles[i].y, 2));
		if (dist < 280) {
			// Play obstacle hit sound
			LK.getSound('obstacleHit').play();
			LK.setScore(game.score);
			LK.showGameOver();
		}
	}
};
game.setBackgroundColor(0xadd8e6);
var scoreText = new Text2('0', {
	size: 150,
	fill: '#3a84f7',
	font: 'Impact',
	dropShadow: true,
	dropShadowColor: '#222a9a',
	dropShadowBlur: 5,
	dropShadowDistance: 7,
	dropShadowAngle: 0
});
scoreText.anchor.set(.5, 0);
LK.gui.top.addChild(scoreText);
var scoreText2 = new Text2('0', {
	size: 150,
	fill: '#ffffff',
	font: 'Impact'
});
scoreText2.anchor.set(.5, 0);
scoreText2.x = -4;
scoreText2.y = -5;
LK.gui.top.addChild(scoreText2);
LK.gui.top.addChild(scoreText);
var bird = game.addChild(new Bird());
var leftWall = game.addChild(new Flower());
leftWall.x = 0;
leftWall.y = 1366;
var rightWall = game.addChild(new Flower());
rightWall.x = 2048;
rightWall.y = 1366;
var leftObstacles = [],
	rightObstacles = [],
	leftFlowers = [],
	rightFlowers = [];
var obstacleSpawnRandomness = 120;
var obstacleSpawnRandomnessDecrease = 0.025 * (2 / 3);
var obstacleSpawnY = -500;
var leftObstacleSpawnTime = Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
var rightObstacleSpawnTime = Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
bird.x = 1024;
bird.y = 1366;
game.isMouseDown = false;
game.down = function (x, y, obj) {
	bird.flap();
	game.isMouseDown = true;
};
game.up = function (x, y, obj) {
	game.isMouseDown = false;
};
game.update = function () {
	bird._update_migrated();
	if (game.score > 2) {
		tutorialText.y += 5;
		tutorialTextWhite.y += 5;
	}
	scoreText.setText(game.score);
	scoreText2.setText(game.score);
	game.obstacleSpeed += game.obstacleSpeedIncrease;
	obstacleSpawnRandomness -= obstacleSpawnRandomnessDecrease;
	if (obstacleSpawnRandomness < 20) {
		obstacleSpawnRandomness = 20;
	}
	if (LK.ticks >= leftObstacleSpawnTime) {
		var newObstacle = game.addChildAt(new Obstacle(), 0);
		newObstacle.x = 0;
		newObstacle.y = obstacleSpawnY;
		leftObstacles.push(newObstacle);
		if (leftObstacles.length > 1) {
			var prevObstacle = leftObstacles[leftObstacles.length - 2];
			var flowerY = (prevObstacle.y + newObstacle.y) / 2;
			var flower = game.addChildAt(new FlowerObstacle(), 0);
			flower.x = 400;
			flower.y = flowerY;
			leftFlowers.push(flower);
		}
		leftObstacleSpawnTime += Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
	}
	if (LK.ticks >= rightObstacleSpawnTime) {
		var newObstacle = game.addChildAt(new Obstacle(), 0);
		newObstacle.x = 2048;
		newObstacle.y = -newObstacle.height;
		rightObstacles.push(newObstacle);
		// Add flower between obstacles
		if (rightObstacles.length > 1) {
			var prevObstacle = rightObstacles[rightObstacles.length - 2];
			var flowerY = (prevObstacle.y + newObstacle.y) / 2;
			var flower = game.addChildAt(new FlowerObstacle(), 0);
			flower.x = 1648;
			flower.y = flowerY;
			rightFlowers.push(flower);
		}
		rightObstacleSpawnTime += Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
	}
	if (bird.intersects(leftWall) && bird.xSpeed < 0 || bird.intersects(rightWall) && bird.xSpeed > 0) {
		bird.xSpeed = -bird.xSpeed;
		bird.flip();
		game.score++;
		LK.setScore(game.score);
	}
	for (var i = leftObstacles.length - 1; i >= 0; i--) {
		leftObstacles[i]._move_migrated(game.obstacleSpeed);
		if (leftObstacles[i].y > 3232) {
			leftObstacles[i].destroy();
			leftObstacles.splice(i, 1);
		}
	}
	// Move and remove flowers that are off-screen
	for (var i = leftFlowers.length - 1; i >= 0; i--) {
		leftFlowers[i]._move_migrated(game.obstacleSpeed);
		if (leftFlowers[i].y > 3232) {
			leftFlowers[i].destroy();
			leftFlowers.splice(i, 1);
		}
	}
	for (var i = rightObstacles.length - 1; i >= 0; i--) {
		rightObstacles[i]._move_migrated(game.obstacleSpeed);
		if (rightObstacles[i].y > 3232) {
			rightObstacles[i].destroy();
			rightObstacles.splice(i, 1);
		}
	}
	// Move and remove flowers that are off-screen
	for (var i = rightFlowers.length - 1; i >= 0; i--) {
		rightFlowers[i]._move_migrated(game.obstacleSpeed);
		if (rightFlowers[i].y > 3232) {
			rightFlowers[i].destroy();
			rightFlowers.splice(i, 1);
		}
	}
	// Check flower collisions
	game.checkFlowerCollision = function (flowers) {
		for (var i = 0; i < flowers.length; i++) {
			var dist = Math.sqrt(Math.pow(bird.x - flowers[i].x, 2) + Math.pow(bird.y - flowers[i].y, 2));
			// Using a unique key for each flower to prevent multiple collisions
			var flowerKey = flowers[i].x + "_" + flowers[i].y;
			if (dist < 220 && !bird.lastFlowerCollision[flowerKey]) {
				// Set score to add exactly 2 points (not more)
				game.score = game.score + 2;
				// Update score display
				scoreText.setText(game.score);
				scoreText2.setText(game.score);
				// Play flower collection sound
				LK.getSound('flowerCollect').play();
				// Flash the flower gold
				var currentFlower = flowers[i]; // Store reference to current flower
				if (currentFlower) {
					tween(currentFlower, {
						alpha: 0.5
					}, {
						duration: 200,
						onFinish: function onFinish() {
							// Check if flower still exists before tweening again
							if (currentFlower && currentFlower.parent) {
								tween(currentFlower, {
									alpha: 1
								}, {
									duration: 200
								});
							}
						}
					});
				}
				// Track this collision
				bird.lastFlowerCollision[flowerKey] = true;
			}
		}
	};
	game.checkObstacleCollision(leftObstacles);
	game.checkObstacleCollision(rightObstacles);
	game.checkFlowerCollision(leftFlowers);
	game.checkFlowerCollision(rightFlowers);
	if (bird.y < 0 || bird.y > 2732) {
		// Play obstacle hit sound when bird hits boundaries
		LK.getSound('obstacleHit').play();
		LK.setScore(game.score);
		LK.showGameOver();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -117,8 +117,10 @@
 	for (var i = 0; i < obstacles.length; i++) {
 		obstacles[i]._move_migrated();
 		var dist = Math.sqrt(Math.pow(bird.x - obstacles[i].x, 2) + Math.pow(bird.y - obstacles[i].y, 2));
 		if (dist < 280) {
+			// Play obstacle hit sound
+			LK.getSound('obstacleHit').play();
 			LK.setScore(game.score);
 			LK.showGameOver();
 		}
 	}
@@ -294,8 +296,10 @@
 	game.checkObstacleCollision(rightObstacles);
 	game.checkFlowerCollision(leftFlowers);
 	game.checkFlowerCollision(rightFlowers);
 	if (bird.y < 0 || bird.y > 2732) {
+		// Play obstacle hit sound when bird hits boundaries
+		LK.getSound('obstacleHit').play();
 		LK.setScore(game.score);
 		LK.showGameOver();
 	}
 };
\ No newline at end of file