/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.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.jumpStrength = -12;
	self.flap = function () {
		self.velocity = self.jumpStrength;
		LK.getSound('flap').play();
	};
	self.update = function () {
		if (!gameStarted) {
			// Don't apply physics before game starts - keep bird completely still
			self.velocity = 0;
			self.y = 1366; // Keep bird at starting position
			birdGraphics.rotation = 0; // Keep bird level
			return;
		}
		self.velocity += self.gravity;
		self.y += self.velocity;
		// Rotate bird based on velocity
		birdGraphics.rotation = Math.max(-0.5, Math.min(1.5, self.velocity * 0.1));
		// Limit bird movement to screen bounds
		if (self.y < 30) {
			self.y = 30;
		}
	};
	return self;
});
var Pipe = Container.expand(function (gapCenterY) {
	var self = Container.call(this);
	self.gapSize = 600;
	self.speed = -3;
	self.passed = false;
	self.gapCenterY = gapCenterY;
	// Create top pipe
	var topPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 1
	});
	topPipe.y = gapCenterY - self.gapSize / 2;
	topPipe.height = gapCenterY - self.gapSize / 2;
	// Create bottom pipe
	var bottomPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 0
	});
	bottomPipe.y = gapCenterY + self.gapSize / 2;
	bottomPipe.height = 2732 - 150 - (gapCenterY + self.gapSize / 2);
	self.update = function () {
		if (!gameStarted) {
			// Don't move pipes before game starts
			return;
		}
		self.x += self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var bird;
var pipes = [];
var ground;
var topBarrier;
var bottomBarrier;
var gameStarted = false;
var gameOver = false;
var showMainMenu = true;
var showLeaderboard = false;
var pipeSpacing = 600; // Consistent spacing between all pipes - balanced distance
// Create score display
var scoreTxt = new Text2('SKOR: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
scoreTxt.stroke = 0x000000;
scoreTxt.strokeThickness = 4;
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 100;
// Create main menu elements
var mainMenuTitle = new Text2('FLAPPY BIRD', {
	size: 100,
	fill: 0xFFD700
});
mainMenuTitle.anchor.set(0.5, 0.5);
mainMenuTitle.stroke = 0x000000;
mainMenuTitle.strokeThickness = 5;
LK.gui.center.addChild(mainMenuTitle);
mainMenuTitle.y = -200;
// Create play button
var playButton = LK.getAsset('ground', {
	anchorX: 0.5,
	anchorY: 0.5,
	width: 300,
	height: 80,
	alpha: 0.9
});
playButton.tint = 0x32CD32;
LK.gui.center.addChild(playButton);
playButton.y = 0;
var playButtonText = new Text2('OYNA', {
	size: 50,
	fill: 0xFFFFFF
});
playButtonText.anchor.set(0.5, 0.5);
playButtonText.stroke = 0x000000;
playButtonText.strokeThickness = 3;
LK.gui.center.addChild(playButtonText);
playButtonText.y = 0;
// Create score button
var scoreButton = LK.getAsset('ground', {
	anchorX: 0.5,
	anchorY: 0.5,
	width: 300,
	height: 80,
	alpha: 0.9
});
scoreButton.tint = 0x4169E1;
LK.gui.center.addChild(scoreButton);
scoreButton.y = 100;
var scoreButtonText = new Text2('SKOR', {
	size: 50,
	fill: 0xFFFFFF
});
scoreButtonText.anchor.set(0.5, 0.5);
scoreButtonText.stroke = 0x000000;
scoreButtonText.strokeThickness = 3;
LK.gui.center.addChild(scoreButtonText);
scoreButtonText.y = 100;
// Create instruction text
var instructionTxt = new Text2('TIKLA VE OYNA!', {
	size: 60,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.stroke = 0x000000;
instructionTxt.strokeThickness = 3;
instructionTxt.visible = false;
// Add background shape for instruction text
var instructionBg = LK.getAsset('ground', {
	anchorX: 0.5,
	anchorY: 0.5,
	width: 400,
	height: 100,
	alpha: 0.8
});
instructionBg.tint = 0x000000;
instructionBg.visible = false;
LK.gui.center.addChild(instructionBg);
LK.gui.center.addChild(instructionTxt);
// Create leaderboard background
var leaderboardBg = LK.getAsset('ground', {
	anchorX: 0.5,
	anchorY: 0.5,
	width: 1800,
	height: 2200,
	alpha: 0.95
});
leaderboardBg.tint = 0x1a1a1a;
leaderboardBg.visible = false;
LK.gui.center.addChild(leaderboardBg);
// Create leaderboard elements
var leaderboardTitle = new Text2('SKOR TABLOSU', {
	size: 80,
	fill: 0xFFD700
});
leaderboardTitle.anchor.set(0.5, 0.5);
leaderboardTitle.stroke = 0x000000;
leaderboardTitle.strokeThickness = 4;
leaderboardTitle.visible = false;
LK.gui.center.addChild(leaderboardTitle);
leaderboardTitle.y = -350;
var highScoreText = new Text2('EN YÜKSEK SKOR: 0', {
	size: 50,
	fill: 0xFFFFFF
});
highScoreText.anchor.set(0.5, 0.5);
highScoreText.stroke = 0x000000;
highScoreText.strokeThickness = 3;
highScoreText.visible = false;
LK.gui.center.addChild(highScoreText);
highScoreText.y = -250;
var currentScoreText = new Text2('SON SKOR: 0', {
	size: 50,
	fill: 0xFFFFFF
});
currentScoreText.anchor.set(0.5, 0.5);
currentScoreText.stroke = 0x000000;
currentScoreText.strokeThickness = 3;
currentScoreText.visible = false;
LK.gui.center.addChild(currentScoreText);
currentScoreText.y = -180;
// Create back button for leaderboard
var backButton = LK.getAsset('ground', {
	anchorX: 0.5,
	anchorY: 0.5,
	width: 300,
	height: 80,
	alpha: 0.9
});
backButton.tint = 0xFF4500;
backButton.visible = false;
LK.gui.center.addChild(backButton);
backButton.y = 350;
var backButtonText = new Text2('GERİ', {
	size: 50,
	fill: 0xFFFFFF
});
backButtonText.anchor.set(0.5, 0.5);
backButtonText.stroke = 0x000000;
backButtonText.strokeThickness = 3;
backButtonText.visible = false;
LK.gui.center.addChild(backButtonText);
backButtonText.y = 350;
// Create bird
bird = game.addChild(new Bird());
bird.x = 400;
bird.y = 1366;
// Create invisible barrier blocks to constrain bird before game starts
var topBarrier = game.addChild(LK.getAsset('barrier', {
	anchorX: 0.5,
	anchorY: 1
}));
topBarrier.x = 400;
topBarrier.y = 1316; // 50 pixels above bird
topBarrier.alpha = 0; // Make invisible
var bottomBarrier = game.addChild(LK.getAsset('barrier', {
	anchorX: 0.5,
	anchorY: 0
}));
bottomBarrier.x = 400;
bottomBarrier.y = 1416; // 50 pixels below bird
bottomBarrier.alpha = 0; // Make invisible
// Create ground
ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 1
}));
ground.x = 0;
ground.y = 2732;
// Create pipe function
function createPipe() {
	var minGapY = 500;
	var maxGapY = 2032; // 2732 - 150 - 600 (adjusted for larger gap)
	var gapCenterY = minGapY + Math.random() * (maxGapY - minGapY);
	var pipe = new Pipe(gapCenterY);
	// Calculate position based on last pipe position + consistent spacing
	if (pipes.length === 0) {
		pipe.x = 2048 + 200; // First pipe position
	} else {
		pipe.x = pipes[pipes.length - 1].x + pipeSpacing; // Consistent spacing from last pipe
	}
	pipes.push(pipe);
	game.addChild(pipe);
}
// Reset game function
function resetGame() {
	// Reset bird
	bird.x = 400;
	bird.y = 1366;
	bird.velocity = 0;
	// Clear pipes
	for (var i = pipes.length - 1; i >= 0; i--) {
		pipes[i].destroy();
	}
	pipes = [];
	// Reset variables
	gameStarted = false;
	gameOver = false;
	showMainMenu = true;
	showLeaderboard = false;
	LK.setScore(0);
	scoreTxt.setText('SKOR: 0');
	// Show main menu
	mainMenuTitle.visible = true;
	playButton.visible = true;
	playButtonText.visible = true;
	scoreButton.visible = true;
	scoreButtonText.visible = true;
	// Hide instruction
	instructionTxt.visible = false;
	instructionBg.visible = false;
	// Hide leaderboard elements
	leaderboardBg.visible = false;
	leaderboardTitle.visible = false;
	highScoreText.visible = false;
	currentScoreText.visible = false;
	backButton.visible = false;
	backButtonText.visible = false;
	// Clear existing barriers if they exist
	if (topBarrier) {
		topBarrier.destroy();
		topBarrier = null;
	}
	if (bottomBarrier) {
		bottomBarrier.destroy();
		bottomBarrier = null;
	}
	// Recreate invisible barriers
	topBarrier = game.addChild(LK.getAsset('barrier', {
		anchorX: 0.5,
		anchorY: 1
	}));
	topBarrier.x = 400;
	topBarrier.y = 1316; // 50 pixels above bird
	topBarrier.alpha = 0; // Make invisible
	bottomBarrier = game.addChild(LK.getAsset('barrier', {
		anchorX: 0.5,
		anchorY: 0
	}));
	bottomBarrier.x = 400;
	bottomBarrier.y = 1416; // 50 pixels below bird
	bottomBarrier.alpha = 0; // Make invisible
	// Create initial pipes
	createPipe();
	createPipe();
}
// Function to start game from main menu
function startGameFromMenu() {
	showMainMenu = false;
	// Hide main menu elements
	mainMenuTitle.visible = false;
	playButton.visible = false;
	playButtonText.visible = false;
	scoreButton.visible = false;
	scoreButtonText.visible = false;
	// Show instruction
	instructionTxt.visible = true;
	instructionBg.visible = true;
}
// Create global leaderboard display elements
var globalLeaderboardText = new Text2('GLOBAL LIDERLER:', {
	size: 50,
	fill: 0xFFD700
});
globalLeaderboardText.anchor.set(0.5, 0.5);
globalLeaderboardText.stroke = 0x000000;
globalLeaderboardText.strokeThickness = 3;
globalLeaderboardText.visible = false;
LK.gui.center.addChild(globalLeaderboardText);
globalLeaderboardText.y = -80;
var globalScoresList = [];
for (var i = 0; i < 5; i++) {
	var scoreText = new Text2('', {
		size: 40,
		fill: 0xFFFFFF
	});
	scoreText.anchor.set(0.5, 0.5);
	scoreText.stroke = 0x000000;
	scoreText.strokeThickness = 2;
	scoreText.visible = false;
	LK.gui.center.addChild(scoreText);
	scoreText.y = -10 + i * 50;
	globalScoresList.push(scoreText);
}
// Function to show leaderboard
function showLeaderboardScreen() {
	showMainMenu = false;
	showLeaderboard = true;
	// Hide main menu elements
	mainMenuTitle.visible = false;
	playButton.visible = false;
	playButtonText.visible = false;
	scoreButton.visible = false;
	scoreButtonText.visible = false;
	// Show leaderboard elements
	leaderboardBg.visible = true;
	leaderboardTitle.visible = true;
	highScoreText.visible = true;
	currentScoreText.visible = true;
	backButton.visible = true;
	backButtonText.visible = true;
	globalLeaderboardText.visible = true;
	// Update score displays
	var highScore = storage.highScore || 0;
	var lastScore = storage.lastScore || 0;
	highScoreText.setText('EN YÜKSEK SKOR: ' + highScore);
	currentScoreText.setText('SON SKOR: ' + lastScore);
	// Initialize global leaderboard if it doesn't exist using simple arrays
	if (!storage.globalLeaderboardNames) {
		storage.globalLeaderboardNames = ['ProPlayer', 'FlappyMaster', 'BirdExpert', 'SkyWalker', 'FeatherKing'];
		storage.globalLeaderboardScores = [50, 45, 40, 35, 30];
	}
	// Get global leaderboard from storage
	var globalNames = storage.globalLeaderboardNames || [];
	var globalScores = storage.globalLeaderboardScores || [];
	// Add current player's high score if it doesn't exist and is greater than 0
	var playerExists = false;
	for (var i = 0; i < globalNames.length; i++) {
		if (globalNames[i] === 'Sen') {
			globalScores[i] = Math.max(globalScores[i], highScore);
			playerExists = true;
			break;
		}
	}
	if (!playerExists && highScore > 0) {
		globalNames.push('Sen');
		globalScores.push(highScore);
	}
	// Sort scores in descending order by creating index array
	var indices = [];
	for (var i = 0; i < globalScores.length; i++) {
		indices.push(i);
	}
	indices.sort(function (a, b) {
		return globalScores[b] - globalScores[a];
	});
	// Create sorted arrays
	var sortedNames = [];
	var sortedScores = [];
	for (var i = 0; i < indices.length; i++) {
		sortedNames.push(globalNames[indices[i]]);
		sortedScores.push(globalScores[indices[i]]);
	}
	// Keep only top 10 scores
	if (sortedNames.length > 10) {
		sortedNames = sortedNames.slice(0, 10);
		sortedScores = sortedScores.slice(0, 10);
	}
	// Save updated leaderboard
	storage.globalLeaderboardNames = sortedNames;
	storage.globalLeaderboardScores = sortedScores;
	// Display global scores
	for (var i = 0; i < globalScoresList.length; i++) {
		if (i < sortedNames.length) {
			var displayText = i + 1 + '. ' + sortedNames[i] + ': ' + sortedScores[i];
			globalScoresList[i].setText(displayText);
			globalScoresList[i].visible = true;
		} else {
			globalScoresList[i].visible = false;
		}
	}
}
// Function to hide leaderboard and return to main menu
function hideLeaderboard() {
	showLeaderboard = false;
	showMainMenu = true;
	// Hide leaderboard elements
	leaderboardBg.visible = false;
	leaderboardTitle.visible = false;
	highScoreText.visible = false;
	currentScoreText.visible = false;
	backButton.visible = false;
	backButtonText.visible = false;
	globalLeaderboardText.visible = false;
	// Hide global scores list
	for (var i = 0; i < globalScoresList.length; i++) {
		globalScoresList[i].visible = false;
	}
	// Show main menu elements
	mainMenuTitle.visible = true;
	playButton.visible = true;
	playButtonText.visible = true;
	scoreButton.visible = true;
	scoreButtonText.visible = true;
}
// Global leaderboard is now initialized in showLeaderboardScreen function
// Initialize game
createPipe();
createPipe();
// Touch/click handler
game.down = function (x, y, obj) {
	if (gameOver) {
		resetGame();
		return;
	}
	if (showMainMenu) {
		// Simple button detection using screen coordinates
		// Play button is at screen center Y offset 0, Score button at Y offset 100
		var screenCenterX = 1024; // 2048/2
		var screenCenterY = 1366; // 2732/2
		// Check play button (OYNA) - centered at screen center with larger click area
		var playButtonX = screenCenterX;
		var playButtonY = screenCenterY;
		if (x >= playButtonX - 200 && x <= playButtonX + 200 && y >= playButtonY - 80 && y <= playButtonY + 80) {
			// Add visual feedback with tween
			tween(playButton, {
				scaleX: 1.1,
				scaleY: 1.1
			}, {
				duration: 100,
				onFinish: function onFinish() {
					tween(playButton, {
						scaleX: 1.0,
						scaleY: 1.0
					}, {
						duration: 100
					});
				}
			});
			// Add small delay to prevent double clicks
			LK.setTimeout(function () {
				startGameFromMenu();
			}, 150);
			return;
		}
		// Check score button (SKOR) - 100 pixels below play button with larger click area
		var scoreButtonX = screenCenterX;
		var scoreButtonY = screenCenterY + 100;
		if (x >= scoreButtonX - 200 && x <= scoreButtonX + 200 && y >= scoreButtonY - 80 && y <= scoreButtonY + 80) {
			// Add visual feedback with tween
			tween(scoreButton, {
				scaleX: 1.1,
				scaleY: 1.1
			}, {
				duration: 100,
				onFinish: function onFinish() {
					tween(scoreButton, {
						scaleX: 1.0,
						scaleY: 1.0
					}, {
						duration: 100
					});
				}
			});
			// Add small delay to prevent double clicks
			LK.setTimeout(function () {
				showLeaderboardScreen();
			}, 150);
			return;
		}
		return;
	}
	if (showLeaderboard) {
		// Convert screen coordinates to GUI coordinates for back button detection
		// x, y are already in screen coordinates, convert to GUI center coordinates
		var screenCenterX = 1024; // 2048/2
		var screenCenterY = 1366; // 2732/2
		var guiX = x - screenCenterX;
		var guiY = y - screenCenterY;
		// Check back button (GERİ) - positioned at y: 350 from center with larger click area
		var backButtonX = 0; // Center of LK.gui.center
		var backButtonY = 350;
		if (guiX >= backButtonX - 200 && guiX <= backButtonX + 200 && guiY >= backButtonY - 80 && guiY <= backButtonY + 80) {
			// Add visual feedback with tween
			tween(backButton, {
				scaleX: 1.1,
				scaleY: 1.1
			}, {
				duration: 100,
				onFinish: function onFinish() {
					tween(backButton, {
						scaleX: 1.0,
						scaleY: 1.0
					}, {
						duration: 100
					});
				}
			});
			// Add small delay to prevent double clicks
			LK.setTimeout(function () {
				hideLeaderboard();
			}, 150);
			return;
		}
		return;
	}
	if (!gameStarted) {
		gameStarted = true;
		instructionTxt.visible = false;
		instructionBg.visible = false;
		// Remove invisible barriers when game starts
		if (topBarrier) {
			topBarrier.destroy();
			topBarrier = null;
		}
		if (bottomBarrier) {
			bottomBarrier.destroy();
			bottomBarrier = null;
		}
	}
	bird.flap();
};
// Main game loop
game.update = function () {
	if (gameOver || showMainMenu || showLeaderboard) return;
	// Only run game logic if game has started
	if (gameStarted) {
		// Check ground collision
		if (bird.y + 20 >= 2732 - 150) {
			gameOver = true;
			// Save score before showing game over
			var currentScore = LK.getScore();
			storage.lastScore = currentScore;
			if (currentScore > (storage.highScore || 0)) {
				storage.highScore = currentScore;
			}
			LK.showGameOver();
			return;
		}
		// Check ceiling collision
		if (bird.y - 20 <= 0) {
			gameOver = true;
			// Save score before showing game over
			var currentScore = LK.getScore();
			storage.lastScore = currentScore;
			if (currentScore > (storage.highScore || 0)) {
				storage.highScore = currentScore;
			}
			LK.showGameOver();
			return;
		}
		// Check pipe collisions and scoring - only check pipes that are near the bird
		for (var i = 0; i < pipes.length; i++) {
			var pipe = pipes[i];
			// Only check pipes that are within reasonable distance of the bird
			if (Math.abs(pipe.x - bird.x) < 200) {
				// Check if bird is within pipe horizontally
				if (bird.x + 30 > pipe.x - 50 && bird.x - 30 < pipe.x + 50) {
					// Check collision with top pipe
					if (bird.y - 20 < pipe.gapCenterY - pipe.gapSize / 2) {
						gameOver = true;
						// Save score before showing game over
						var currentScore = LK.getScore();
						storage.lastScore = currentScore;
						if (currentScore > (storage.highScore || 0)) {
							storage.highScore = currentScore;
						}
						LK.showGameOver();
						return;
					}
					// Check collision with bottom pipe
					if (bird.y + 20 > pipe.gapCenterY + pipe.gapSize / 2) {
						gameOver = true;
						// Save score before showing game over
						var currentScore = LK.getScore();
						storage.lastScore = currentScore;
						if (currentScore > (storage.highScore || 0)) {
							storage.highScore = currentScore;
						}
						LK.showGameOver();
						return;
					}
				}
			}
			// Check scoring - only for pipes that haven't been passed yet
			if (!pipe.passed && pipe.x + 50 < bird.x) {
				pipe.passed = true;
				LK.setScore(LK.getScore() + 1);
				scoreTxt.setText('SKOR: ' + LK.getScore());
				LK.getSound('score').play();
			}
		}
		// Create new pipes - maintain consistent spacing
		if (pipes.length === 0 || pipes.length > 0 && pipes[pipes.length - 1].x <= 2048 + 200 - pipeSpacing) {
			createPipe();
		}
		// Remove off-screen pipes - only check every 10 frames to reduce lag
		if (LK.ticks % 10 === 0) {
			for (var j = pipes.length - 1; j >= 0; j--) {
				if (pipes[j].x < -150) {
					pipes[j].destroy();
					pipes.splice(j, 1);
				}
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -544,17 +544,18 @@
 		}
 		return;
 	}
 	if (showLeaderboard) {
-		// Convert game coordinates to GUI coordinates for back button detection
-		var guiPos = LK.gui.center.toLocal(game.toGlobal({
-			x: x,
-			y: y
-		}));
+		// Convert screen coordinates to GUI coordinates for back button detection
+		// x, y are already in screen coordinates, convert to GUI center coordinates
+		var screenCenterX = 1024; // 2048/2
+		var screenCenterY = 1366; // 2732/2
+		var guiX = x - screenCenterX;
+		var guiY = y - screenCenterY;
 		// Check back button (GERİ) - positioned at y: 350 from center with larger click area
 		var backButtonX = 0; // Center of LK.gui.center
 		var backButtonY = 350;
-		if (guiPos.x >= backButtonX - 200 && guiPos.x <= backButtonX + 200 && guiPos.y >= backButtonY - 80 && guiPos.y <= backButtonY + 80) {
+		if (guiX >= backButtonX - 200 && guiX <= backButtonX + 200 && guiY >= backButtonY - 80 && guiY <= backButtonY + 80) {
 			// Add visual feedback with tween
 			tween(backButton, {
 				scaleX: 1.1,
 				scaleY: 1.1