/**** 
* 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;
		LK.getSound('flap').play();
	};
	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.flip = function () {
		self.scale.x *= -1;
	};
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleShadow = self.attachAsset('obstacleShadow', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	obstacleShadow.rotation = Math.PI / 4;
	var obstacleShadow2 = self.attachAsset('obstacleShadow2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	obstacleShadow2.rotation = Math.PI / 4;
	obstacleShadow2.y = -7;
	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;
	};
});
var Wall = Container.expand(function () {
	var self = Container.call(this);
	var wallGraphics = self.attachAsset('wall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});

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

/**** 
* Game Code
****/ 
// Language selection UI
var languageSelected = false;
var selectedLanguage = "tr";
var languages = [{
	label: "Türkçe",
	code: "tr"
}, {
	label: "English",
	code: "en"
}];
var languageButtons = [];
var languageText = new Text2('Dil Seçin / Select Language', {
	size: 180,
	fill: '#3a84f7',
	font: 'Impact',
	align: 'center'
});
languageText.anchor.set(0.5, 1);
languageText.y = -600;
LK.gui.center.addChild(languageText);
for (var i = 0; i < languages.length; i++) {
	var lbtn = new Text2(languages[i].label, {
		size: 150,
		fill: '#ffffff',
		font: 'Impact',
		align: 'center',
		dropShadow: true,
		dropShadowColor: '#222a9a',
		dropShadowBlur: 5,
		dropShadowDistance: 7,
		dropShadowAngle: 0
	});
	lbtn.anchor.set(0.5, 0.5);
	lbtn.y = -400 + i * 220;
	lbtn.x = 0;
	(function (idx) {
		lbtn.interactive = true;
		lbtn.down = function (x, y, obj) {
			if (languageSelected) return;
			languageSelected = true;
			selectedLanguage = languages[idx].code;
			// Remove language buttons and text
			for (var j = 0; j < languageButtons.length; j++) {
				LK.gui.center.removeChild(languageButtons[j]);
			}
			LK.gui.center.removeChild(languageText);
			// Show difficulty selection
			showDifficultySelection();
		};
	})(i);
	LK.gui.center.addChild(lbtn);
	languageButtons.push(lbtn);
}
// Difficulty selection UI
var difficultySelected = false;
var difficulties = [{
	label: {
		tr: "Kolay",
		en: "Easy"
	},
	speed: 4,
	speedInc: 0.003,
	randomness: 160
}, {
	label: {
		tr: "Orta",
		en: "Medium"
	},
	speed: 5,
	speedInc: 0.005,
	randomness: 120
}, {
	label: {
		tr: "Zor",
		en: "Hard"
	},
	speed: 6,
	speedInc: 0.008,
	randomness: 80
}];
var difficultyButtons = [];
var difficultyText;
function showDifficultySelection() {
	difficultySelected = false;
	difficultyButtons = [];
	var diffTextStr = selectedLanguage === "tr" ? "Zorluk Seçin" : "Select Difficulty";
	difficultyText = new Text2(diffTextStr, {
		size: 180,
		fill: '#3a84f7',
		font: 'Impact',
		align: 'center'
	});
	difficultyText.anchor.set(0.5, 1);
	difficultyText.y = -400;
	LK.gui.center.addChild(difficultyText);
	for (var i = 0; i < difficulties.length; i++) {
		var btn = new Text2(difficulties[i].label[selectedLanguage], {
			size: 150,
			fill: '#ffffff',
			font: 'Impact',
			align: 'center',
			dropShadow: true,
			dropShadowColor: '#222a9a',
			dropShadowBlur: 5,
			dropShadowDistance: 7,
			dropShadowAngle: 0
		});
		btn.anchor.set(0.5, 0.5);
		btn.y = -200 + i * 220;
		btn.x = 0;
		// Attach event
		(function (idx) {
			btn.interactive = true;
			btn.down = function (x, y, obj) {
				if (difficultySelected) return;
				difficultySelected = true;
				// Set game difficulty
				game.obstacleSpeed = difficulties[idx].speed;
				game.obstacleSpeedIncrease = difficulties[idx].speedInc;
				obstacleSpawnRandomness = difficulties[idx].randomness;
				// Remove buttons and text
				for (var j = 0; j < difficultyButtons.length; j++) {
					LK.gui.center.removeChild(difficultyButtons[j]);
				}
				LK.gui.center.removeChild(difficultyText);
				// Show tutorial
				tutorialText.visible = true;
				tutorialTextWhite.visible = true;
				// Update tutorial text language
				if (selectedLanguage === "tr") {
					tutorialText.setText('Zıpla\nHavada Kalmak İçin Basılı Tut');
					tutorialTextWhite.setText('Zıpla\nHavada Kalmak İçin Basılı Tut');
				} else {
					tutorialText.setText('Tap to Flap\nHold to Float');
					tutorialTextWhite.setText('Tap to Flap\nHold to Float');
				}
			};
		})(i);
		LK.gui.center.addChild(btn);
		difficultyButtons.push(btn);
	}
}
// Hide tutorial until difficulty is picked, will update for language
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;
tutorialTextWhite.visible = false;
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;
tutorialText.visible = false;
LK.gui.bottom.addChild(tutorialText);
game.score = 0;
game.obstacleSpeed = 5;
game.obstacleSpeedIncrease = 0.005;
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) {
			LK.setScore(game.score);
			LK.getSound('gameOverJingle').play();
			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 Wall());
leftWall.x = 0;
leftWall.y = 1366;
var rightWall = game.addChild(new Wall());
rightWall.x = 2048;
rightWall.y = 1366;
var leftObstacles = [],
	rightObstacles = [];
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) {
	if (!languageSelected || !difficultySelected) return;
	bird.flap();
	game.isMouseDown = true;
};
game.up = function (x, y, obj) {
	if (!languageSelected || !difficultySelected) return;
	game.isMouseDown = false;
};
game.update = function () {
	if (!languageSelected) {
		// Block all game logic until language is picked
		return;
	}
	if (!difficultySelected) {
		// Block all game logic until difficulty is picked
		return;
	}
	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);
		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);
		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);
		LK.getSound('bounce').play();
	}
	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);
		}
	}
	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);
		}
	}
	game.checkObstacleCollision(leftObstacles);
	game.checkObstacleCollision(rightObstacles);
	if (bird.y < 0 || bird.y > 2732) {
		LK.setScore(game.score);
		LK.getSound('gameOverJingle').play();
		LK.showGameOver();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -73,38 +73,30 @@
 
 /**** 
 * Game Code
 ****/ 
-// Difficulty selection UI
-var difficultySelected = false;
-var difficulties = [{
-	label: "Kolay",
-	speed: 4,
-	speedInc: 0.003,
-	randomness: 160
+// Language selection UI
+var languageSelected = false;
+var selectedLanguage = "tr";
+var languages = [{
+	label: "Türkçe",
+	code: "tr"
 }, {
-	label: "Orta",
-	speed: 5,
-	speedInc: 0.005,
-	randomness: 120
-}, {
-	label: "Zor",
-	speed: 6,
-	speedInc: 0.008,
-	randomness: 80
+	label: "English",
+	code: "en"
 }];
-var difficultyButtons = [];
-var difficultyText = new Text2('Zorluk Seçin', {
+var languageButtons = [];
+var languageText = new Text2('Dil Seçin / Select Language', {
 	size: 180,
 	fill: '#3a84f7',
 	font: 'Impact',
 	align: 'center'
 });
-difficultyText.anchor.set(0.5, 1);
-difficultyText.y = -400;
-LK.gui.center.addChild(difficultyText);
-for (var i = 0; i < difficulties.length; i++) {
-	var btn = new Text2(difficulties[i].label, {
+languageText.anchor.set(0.5, 1);
+languageText.y = -600;
+LK.gui.center.addChild(languageText);
+for (var i = 0; i < languages.length; i++) {
+	var lbtn = new Text2(languages[i].label, {
 		size: 150,
 		fill: '#ffffff',
 		font: 'Impact',
 		align: 'center',
@@ -113,35 +105,119 @@
 		dropShadowBlur: 5,
 		dropShadowDistance: 7,
 		dropShadowAngle: 0
 	});
-	btn.anchor.set(0.5, 0.5);
-	btn.y = -200 + i * 220;
-	btn.x = 0;
-	// Attach event
+	lbtn.anchor.set(0.5, 0.5);
+	lbtn.y = -400 + i * 220;
+	lbtn.x = 0;
 	(function (idx) {
-		btn.interactive = true;
-		btn.down = function (x, y, obj) {
-			if (difficultySelected) return;
-			difficultySelected = true;
-			// Set game difficulty
-			game.obstacleSpeed = difficulties[idx].speed;
-			game.obstacleSpeedIncrease = difficulties[idx].speedInc;
-			obstacleSpawnRandomness = difficulties[idx].randomness;
-			// Remove buttons and text
-			for (var j = 0; j < difficultyButtons.length; j++) {
-				LK.gui.center.removeChild(difficultyButtons[j]);
+		lbtn.interactive = true;
+		lbtn.down = function (x, y, obj) {
+			if (languageSelected) return;
+			languageSelected = true;
+			selectedLanguage = languages[idx].code;
+			// Remove language buttons and text
+			for (var j = 0; j < languageButtons.length; j++) {
+				LK.gui.center.removeChild(languageButtons[j]);
 			}
-			LK.gui.center.removeChild(difficultyText);
-			// Show tutorial
-			tutorialText.visible = true;
-			tutorialTextWhite.visible = true;
+			LK.gui.center.removeChild(languageText);
+			// Show difficulty selection
+			showDifficultySelection();
 		};
 	})(i);
-	LK.gui.center.addChild(btn);
-	difficultyButtons.push(btn);
+	LK.gui.center.addChild(lbtn);
+	languageButtons.push(lbtn);
 }
-// Hide tutorial until difficulty is picked
+// Difficulty selection UI
+var difficultySelected = false;
+var difficulties = [{
+	label: {
+		tr: "Kolay",
+		en: "Easy"
+	},
+	speed: 4,
+	speedInc: 0.003,
+	randomness: 160
+}, {
+	label: {
+		tr: "Orta",
+		en: "Medium"
+	},
+	speed: 5,
+	speedInc: 0.005,
+	randomness: 120
+}, {
+	label: {
+		tr: "Zor",
+		en: "Hard"
+	},
+	speed: 6,
+	speedInc: 0.008,
+	randomness: 80
+}];
+var difficultyButtons = [];
+var difficultyText;
+function showDifficultySelection() {
+	difficultySelected = false;
+	difficultyButtons = [];
+	var diffTextStr = selectedLanguage === "tr" ? "Zorluk Seçin" : "Select Difficulty";
+	difficultyText = new Text2(diffTextStr, {
+		size: 180,
+		fill: '#3a84f7',
+		font: 'Impact',
+		align: 'center'
+	});
+	difficultyText.anchor.set(0.5, 1);
+	difficultyText.y = -400;
+	LK.gui.center.addChild(difficultyText);
+	for (var i = 0; i < difficulties.length; i++) {
+		var btn = new Text2(difficulties[i].label[selectedLanguage], {
+			size: 150,
+			fill: '#ffffff',
+			font: 'Impact',
+			align: 'center',
+			dropShadow: true,
+			dropShadowColor: '#222a9a',
+			dropShadowBlur: 5,
+			dropShadowDistance: 7,
+			dropShadowAngle: 0
+		});
+		btn.anchor.set(0.5, 0.5);
+		btn.y = -200 + i * 220;
+		btn.x = 0;
+		// Attach event
+		(function (idx) {
+			btn.interactive = true;
+			btn.down = function (x, y, obj) {
+				if (difficultySelected) return;
+				difficultySelected = true;
+				// Set game difficulty
+				game.obstacleSpeed = difficulties[idx].speed;
+				game.obstacleSpeedIncrease = difficulties[idx].speedInc;
+				obstacleSpawnRandomness = difficulties[idx].randomness;
+				// Remove buttons and text
+				for (var j = 0; j < difficultyButtons.length; j++) {
+					LK.gui.center.removeChild(difficultyButtons[j]);
+				}
+				LK.gui.center.removeChild(difficultyText);
+				// Show tutorial
+				tutorialText.visible = true;
+				tutorialTextWhite.visible = true;
+				// Update tutorial text language
+				if (selectedLanguage === "tr") {
+					tutorialText.setText('Zıpla\nHavada Kalmak İçin Basılı Tut');
+					tutorialTextWhite.setText('Zıpla\nHavada Kalmak İçin Basılı Tut');
+				} else {
+					tutorialText.setText('Tap to Flap\nHold to Float');
+					tutorialTextWhite.setText('Tap to Flap\nHold to Float');
+				}
+			};
+		})(i);
+		LK.gui.center.addChild(btn);
+		difficultyButtons.push(btn);
+	}
+}
+// Hide tutorial until difficulty is picked, will update for language
 var tutorialTextWhite = new Text2('Tap to Flap\nHold to Float', {
 	size: 150,
 	fill: '#ffffff',
 	font: 'Impact',
@@ -221,17 +297,21 @@
 bird.x = 1024;
 bird.y = 1366;
 game.isMouseDown = false;
 game.down = function (x, y, obj) {
-	if (!difficultySelected) return;
+	if (!languageSelected || !difficultySelected) return;
 	bird.flap();
 	game.isMouseDown = true;
 };
 game.up = function (x, y, obj) {
-	if (!difficultySelected) return;
+	if (!languageSelected || !difficultySelected) return;
 	game.isMouseDown = false;
 };
 game.update = function () {
+	if (!languageSelected) {
+		// Block all game logic until language is picked
+		return;
+	}
 	if (!difficultySelected) {
 		// Block all game logic until difficulty is picked
 		return;
 	}