/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	currentLevel: 1,
	unlockedLevels: 1,
	totalScore: 0
});

/**** 
* Classes
****/ 
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityY = 0;
	self.gravity = 0.8;
	self.flapPower = -12;
	self.rotation = 0;
	self.rotationVelocity = 0;
	self.isFlipping = false;
	self.completedFlips = 0;
	self.lastUpright = true;
	self.flap = function () {
		self.velocityY = self.flapPower;
		self.rotationVelocity = 0.3;
		self.isFlipping = true;
		LK.getSound('flap').play();
	};
	self.update = function () {
		// Apply gravity
		self.velocityY += self.gravity;
		self.y += self.velocityY;
		// Apply rotation
		if (self.isFlipping) {
			self.rotation += self.rotationVelocity;
			self.rotationVelocity *= 0.98; // Slow down rotation
			// Check if completed a full rotation
			if (self.rotation >= Math.PI * 2) {
				self.completedFlips++;
				self.rotation = 0;
				self.isFlipping = false;
			}
		}
		birdGraphics.rotation = self.rotation;
		// Keep bird in bounds horizontally
		if (self.x < 40) self.x = 40;
		if (self.x > 2008) self.x = 2008;
	};
	self.isUpright = function () {
		var normalizedRotation = self.rotation % (Math.PI * 2);
		return normalizedRotation < 0.3 || normalizedRotation > Math.PI * 2 - 0.3;
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	// Choose obstacle type using seeded random for consistent maps
	var obstacleTypes = ['spike', 'block', 'tallBlock', 'platform'];
	var seed = (currentLevel * 1000 + obstacleCounter) % 9973; // Same seed system as gap position
	var seededRandom = (seed * 9301 + 49297) % 233280 / 233280;
	var randomType = obstacleTypes[Math.floor(seededRandom * obstacleTypes.length)];
	var obstacleGraphics = self.attachAsset(randomType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -3;
	self.passed = false;
	self.obstacleType = randomType;
	// Add visual effects for Geometry Dash style
	self.pulseScale = 1;
	self.pulseDirection = 1;
	self.rotationSpeed = 0;
	// Set rotation speed for certain types
	if (randomType === 'spike' || randomType === 'block') {
		self.rotationSpeed = 0.05;
	}
	self.update = function () {
		self.x += self.speed;
		// Add pulsing effect
		self.pulseScale += 0.02 * self.pulseDirection;
		if (self.pulseScale > 1.2) self.pulseDirection = -1;
		if (self.pulseScale < 0.9) self.pulseDirection = 1;
		obstacleGraphics.scaleX = self.pulseScale;
		obstacleGraphics.scaleY = self.pulseScale;
		// Add rotation for certain obstacles
		if (self.rotationSpeed > 0) {
			obstacleGraphics.rotation += self.rotationSpeed;
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var bird;
var obstacles = [];
var ground;
var gameStarted = false;
var lastObstacle = 0;
var obstacleSpacing = 200;
var currentLevel = storage.currentLevel || 1;
var unlockedLevels = storage.unlockedLevels || 1;
var totalScore = storage.totalScore || 0;
var levelScoreThreshold = 10; // Score needed to unlock next level
var obstacleCounter = 0; // Counter for obstacle generation
// 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 = 100;
// Create level display
var levelTxt = new Text2('Level ' + currentLevel, {
	size: 60,
	fill: 0xFFD700
});
levelTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(levelTxt);
levelTxt.y = 200;
// Create level progress display
var progressTxt = new Text2('Progress: 0/' + levelScoreThreshold, {
	size: 40,
	fill: 0xFFFFFF
});
progressTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(progressTxt);
progressTxt.y = 280;
// Create instructions
var instructionTxt = new Text2('TAP TO FLIP AND FLY\nLAND UPRIGHT TO SCORE!', {
	size: 60,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
game.addChild(instructionTxt);
instructionTxt.x = 1024;
instructionTxt.y = 1000;
// Create ground
ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
}));
ground.x = 0;
ground.y = 2632;
// Create bird
bird = game.addChild(new Bird());
bird.x = 300;
bird.y = 1366;
// Create initial obstacles at game start
createObstacle();
function updateLevelProgress() {
	var levelProgress = LK.getScore();
	var progressNeeded = levelScoreThreshold * currentLevel;
	// Update progress display
	progressTxt.setText('Progress: ' + levelProgress + '/' + progressNeeded);
	// Check if level is completed
	if (levelProgress >= progressNeeded) {
		// Level completed
		totalScore += levelProgress;
		storage.totalScore = totalScore;
		// Unlock next level if not already unlocked
		if (currentLevel >= unlockedLevels) {
			unlockedLevels = currentLevel + 1;
			storage.unlockedLevels = unlockedLevels;
			LK.effects.flashScreen(0x00ff00, 1000); // Green flash for level completion
		}
		// Advance to next level
		currentLevel++;
		storage.currentLevel = currentLevel;
		levelTxt.setText('Level ' + currentLevel);
		// Reset score for new level
		LK.setScore(0);
		scoreTxt.setText(0);
		// Reset obstacle counter for consistent level maps
		obstacleCounter = 0;
		updateLevelProgress();
		// Increase difficulty for new level
		updateDifficultyForLevel();
	}
}
function updateDifficultyForLevel() {
	// Each level increases difficulty
	var difficultyMultiplier = 1 + (currentLevel - 1) * 0.3;
	// Adjust obstacle spacing based on level
	obstacleSpacing = Math.max(80, 200 - (currentLevel - 1) * 15);
	// Adjust bird physics slightly for higher levels
	if (currentLevel > 3) {
		bird.gravity = 0.8 + (currentLevel - 3) * 0.1;
	}
}
function startGame() {
	if (!gameStarted) {
		gameStarted = true;
		game.removeChild(instructionTxt);
		// Reset obstacle counter for consistent level maps
		obstacleCounter = 0;
		updateDifficultyForLevel();
		updateLevelProgress();
	}
}
function createObstacle() {
	// Create walls that cover full screen with a gap for the bird
	var baseX = 2148;
	var gapSize = 250; // Size of the gap for bird to pass through
	// Use seeded random based on current level and obstacle counter for consistent maps
	var seed = (currentLevel * 1000 + obstacleCounter) % 9973; // Use prime number for better distribution
	var seededRandom = (seed * 9301 + 49297) % 233280 / 233280; // Linear congruential generator
	var gapPosition = seededRandom * (2200 - gapSize) + 300; // Seeded gap position between 300-2200
	var obstacleHeight = 400; // Height of each obstacle segment
	var numSegments = Math.ceil(2732 / obstacleHeight); // Number of segments to cover full height
	for (var i = 0; i < numSegments; i++) {
		var segmentY = i * obstacleHeight + obstacleHeight / 2;
		// Skip creating obstacles in the gap area
		if (segmentY + obstacleHeight / 2 > gapPosition && segmentY - obstacleHeight / 2 < gapPosition + gapSize) {
			continue;
		}
		var obstacle = new Obstacle();
		obstacle.x = baseX;
		obstacle.y = segmentY;
		obstacles.push(obstacle);
		game.addChild(obstacle);
	}
	obstacleCounter++;
	lastObstacle = LK.ticks;
}
function checkCollisions() {
	// Check ground collision
	if (bird.y + 30 >= ground.y) {
		if (!bird.isUpright()) {
			LK.showGameOver();
			return;
		} else {
			// Successful landing - award points
			if (bird.completedFlips > 0) {
				LK.setScore(LK.getScore() + bird.completedFlips);
				scoreTxt.setText(LK.getScore());
				LK.getSound('score').play();
				updateLevelProgress();
				bird.completedFlips = 0;
				// Bounce back up
				bird.velocityY = -8;
				bird.y = ground.y - 30;
			}
		}
	}
	// Check obstacle collisions
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		if (bird.intersects(obstacle)) {
			LK.showGameOver();
			return;
		}
		// Check if bird passed obstacle
		if (!obstacle.passed && obstacle.x + 75 < bird.x) {
			obstacle.passed = true;
			if (bird.isUpright() && bird.completedFlips > 0) {
				LK.setScore(LK.getScore() + 1);
				scoreTxt.setText(LK.getScore());
				LK.getSound('score').play();
				updateLevelProgress();
			}
		}
		// Remove off-screen obstacles
		if (obstacle.x < -100) {
			// Add flash effect when obstacle disappears
			LK.effects.flashObject(obstacle, 0xffffff, 200);
			obstacle.destroy();
			obstacles.splice(i, 1);
		}
	}
	// Check ceiling collision
	if (bird.y < 50) {
		bird.y = 50;
		bird.velocityY = 0;
	}
}
game.down = function (x, y, obj) {
	if (!gameStarted) {
		startGame();
	}
	bird.flap();
};
game.update = function () {
	if (!gameStarted) return;
	// Create obstacles
	if (LK.ticks - lastObstacle > obstacleSpacing) {
		createObstacle();
	}
	// Update bird physics
	bird.update();
	// Update obstacles
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].update();
	}
	// Check collisions
	checkCollisions();
	// Level-based difficulty progression
	var baseSpacing = 200 - (currentLevel - 1) * 15;
	var minSpacing = Math.max(80, 120 - (currentLevel - 1) * 5);
	var reductionRate = 2 + currentLevel; // Increase reduction rate with level
	var currentSpacing = baseSpacing - LK.getScore() * reductionRate;
	obstacleSpacing = Math.max(minSpacing, currentSpacing);
};

===================================================================
--- original.js
+++ change.js
@@ -58,11 +58,13 @@
 	return self;
 });
 var Obstacle = Container.expand(function () {
 	var self = Container.call(this);
-	// Choose random obstacle type
+	// Choose obstacle type using seeded random for consistent maps
 	var obstacleTypes = ['spike', 'block', 'tallBlock', 'platform'];
-	var randomType = obstacleTypes[Math.floor(Math.random() * obstacleTypes.length)];
+	var seed = (currentLevel * 1000 + obstacleCounter) % 9973; // Same seed system as gap position
+	var seededRandom = (seed * 9301 + 49297) % 233280 / 233280;
+	var randomType = obstacleTypes[Math.floor(seededRandom * obstacleTypes.length)];
 	var obstacleGraphics = self.attachAsset(randomType, {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
@@ -112,8 +114,9 @@
 var currentLevel = storage.currentLevel || 1;
 var unlockedLevels = storage.unlockedLevels || 1;
 var totalScore = storage.totalScore || 0;
 var levelScoreThreshold = 10; // Score needed to unlock next level
+var obstacleCounter = 0; // Counter for obstacle generation
 // Create score display
 var scoreTxt = new Text2('0', {
 	size: 80,
 	fill: 0xFFFFFF
@@ -181,8 +184,10 @@
 		levelTxt.setText('Level ' + currentLevel);
 		// Reset score for new level
 		LK.setScore(0);
 		scoreTxt.setText(0);
+		// Reset obstacle counter for consistent level maps
+		obstacleCounter = 0;
 		updateLevelProgress();
 		// Increase difficulty for new level
 		updateDifficultyForLevel();
 	}
@@ -200,17 +205,22 @@
 function startGame() {
 	if (!gameStarted) {
 		gameStarted = true;
 		game.removeChild(instructionTxt);
+		// Reset obstacle counter for consistent level maps
+		obstacleCounter = 0;
 		updateDifficultyForLevel();
 		updateLevelProgress();
 	}
 }
 function createObstacle() {
 	// Create walls that cover full screen with a gap for the bird
 	var baseX = 2148;
 	var gapSize = 250; // Size of the gap for bird to pass through
-	var gapPosition = Math.random() * (2200 - gapSize) + 300; // Random gap position between 300-2200
+	// Use seeded random based on current level and obstacle counter for consistent maps
+	var seed = (currentLevel * 1000 + obstacleCounter) % 9973; // Use prime number for better distribution
+	var seededRandom = (seed * 9301 + 49297) % 233280 / 233280; // Linear congruential generator
+	var gapPosition = seededRandom * (2200 - gapSize) + 300; // Seeded gap position between 300-2200
 	var obstacleHeight = 400; // Height of each obstacle segment
 	var numSegments = Math.ceil(2732 / obstacleHeight); // Number of segments to cover full height
 	for (var i = 0; i < numSegments; i++) {
 		var segmentY = i * obstacleHeight + obstacleHeight / 2;
@@ -223,8 +233,9 @@
 		obstacle.y = segmentY;
 		obstacles.push(obstacle);
 		game.addChild(obstacle);
 	}
+	obstacleCounter++;
 	lastObstacle = LK.ticks;
 }
 function checkCollisions() {
 	// Check ground collision