/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var Memecoin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('memecoin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.active = true;
	self.collected = false;
	self.update = function () {
		if (!self.active) {
			return;
		}
		self.x -= self.speed;
		// Rotate coin
		coinGraphics.rotation += 0.03;
		// Remove when off screen
		if (self.x < -100) {
			self.active = false;
		}
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vx = 0;
	self.vy = 0;
	self.gravity = 0.5;
	self.jumpPower = -15;
	self.isJumping = false;
	self.isDead = false;
	self.lastWasIntersecting = false;
	self.jump = function () {
		if (!self.isJumping && !self.isDead) {
			self.vy = self.jumpPower;
			self.isJumping = true;
			LK.getSound('jump').play();
		}
	};
	self.update = function () {
		if (self.isDead) {
			return;
		}
		// Apply gravity
		self.vy += self.gravity;
		// Apply movement
		self.y += self.vy;
		// Track if player is jumping or falling
		self.isJumping = self.vy !== 0;
		// Ground collision detection
		if (self.y > 2732 - 250) {
			// Shark zone
			self.y = 2732 - 250;
			self.vy = 0;
			self.isJumping = false;
		}
	};
	return self;
});
var Shark = Container.expand(function () {
	var self = Container.call(this);
	var sharkGraphics = self.attachAsset('shark', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.direction = 1;
	self.amplitude = 100;
	self.centerY = 2732 - 100;
	self.startX = 400;
	self.time = 0;
	self.update = function () {
		self.time += 0.02;
		// Shark moves in a wavy pattern along the bottom
		self.x = self.startX + Math.sin(self.time) * self.amplitude;
		self.y = self.centerY + Math.sin(self.time * 2) * 20;
		// Flip shark based on direction
		if (Math.sin(self.time) > 0 && self.direction === -1) {
			self.direction = 1;
			sharkGraphics.scale.x = 1;
		} else if (Math.sin(self.time) < 0 && self.direction === 1) {
			self.direction = -1;
			sharkGraphics.scale.x = -1;
		}
	};
	return self;
});
var Signal = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || 'green';
	var assetId = self.type === 'green' ? 'greenSignal' : 'redSignal';
	var signalGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3.5;
	self.active = true;
	self.update = function () {
		if (!self.active) {
			return;
		}
		self.x -= self.speed;
		// Remove when off screen only if player is not jumping/falling and if we have more than 44 signals
		// Make sure we keep signals visible while player is falling
		if (self.x < -200 && (!player || !player.isJumping && player.vy <= 0) && signals.length > 44) {
			self.active = false;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x001F3F
});

/**** 
* Game Code
****/ 
// Game variables
var player;
var signals = [];
var memecoins = [];
var shark;
var isGameActive = true;
var gameSpeed = 1;
var lastSignalTime = 0;
var lastCoinTime = 0;
var score = 0;
var scoreIncrement = 0.1;
var distanceTraveled = 0;
// UI elements
var scoreTxt;
var highScoreTxt;
// Initialize UI
function initUI() {
	// Score text
	scoreTxt = new Text2('SCORE: 0', {
		size: 70,
		fill: 0xFFFFFF
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	scoreTxt.y = 50;
	// High score text
	var highScore = storage.highScore || 0;
	highScoreTxt = new Text2('HIGH SCORE: ' + Math.floor(highScore), {
		size: 50,
		fill: 0xFFD700
	});
	highScoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(highScoreTxt);
	highScoreTxt.y = 130;
}
// Initialize game world
function initGame() {
	isGameActive = true;
	score = 0;
	distanceTraveled = 0;
	gameSpeed = 1;
	// Clear signals and coins
	clearEntities();
	// Preload signals
	var _preloadSignals = function preloadSignals() {
		// Create 44 signals first
		if (signals.length < 44) {
			spawnSignal();
			// Schedule next signal creation
			LK.setTimeout(_preloadSignals, 10);
		} else {
			// Only create player after signals are preloaded
			player = new Player();
			player.x = 400;
			player.y = 1500;
			player.vy = 0; // Ensure player isn't falling at start
			game.addChild(player);
			// Create shark
			shark = new Shark();
			shark.y = 2732 - 100;
			game.addChild(shark);
			// Start game music
			LK.playMusic('gameMusic');
		}
	};
	// Start preloading signals
	_preloadSignals();
}
// Clear all entities
function clearEntities() {
	for (var i = signals.length - 1; i >= 0; i--) {
		signals[i].destroy();
		signals.splice(i, 1);
	}
	for (var i = memecoins.length - 1; i >= 0; i--) {
		memecoins[i].destroy();
		memecoins.splice(i, 1);
	}
}
// Spawn signals
function spawnSignal() {
	var currentTime = Date.now();
	// Spawn signals at shorter intervals to make them closer to each other
	if (currentTime - lastSignalTime > 280 / gameSpeed || signals.length < 44) {
		var signal;
		var lastSignalY = 1500; // Default Y position if no signals exist
		// Get the Y position of the last signal to compare with
		if (signals.length > 0) {
			var lastSignal = signals[signals.length - 1];
			lastSignalY = lastSignal.y;
		}
		// Calculate a new Y position
		var newY;
		var willBeHigher = Math.random() < 0.5; // 50% chance to go higher
		if (willBeHigher) {
			// This signal will be higher (ascending)
			newY = lastSignalY - (200 + Math.random() * 300);
			// Higher signals must be green
			signal = new Signal('green');
		} else {
			// This signal will be lower (descending)
			newY = lastSignalY + (200 + Math.random() * 300);
			// Lower signals must be red
			signal = new Signal('red');
		}
		// Ensure signal stays within playable area
		newY = Math.max(800, Math.min(2200, newY));
		signal.x = 2048 + 150;
		signal.y = newY;
		signals.push(signal);
		game.addChild(signal);
		lastSignalTime = currentTime;
	}
}
// Spawn memecoins
function spawnMemecoin() {
	var currentTime = Date.now();
	// Spawn coins less frequently than signals
	if (currentTime - lastCoinTime > 3000 / gameSpeed) {
		var coin = new Memecoin();
		coin.x = 2048 + 150;
		coin.y = 1000 + Math.random() * 1000; // Random height
		memecoins.push(coin);
		game.addChild(coin);
		lastCoinTime = currentTime;
	}
}
// Check collisions between player and signals/coins/shark
function checkCollisions() {
	if (!isGameActive) {
		return;
	}
	// Check signal collisions
	for (var i = 0; i < signals.length; i++) {
		var signal = signals[i];
		if (signal.active && player && player.intersects(signal)) {
			// Land on top of the signal
			if (player.y < signal.y - 20 && player.vy > 0) {
				player.y = signal.y - 75;
				player.vy = 0;
				player.isJumping = false;
				// If it's a red signal, make it more slippery (player keeps falling)
				if (signal.type === 'red') {
					player.vy = 5;
					player.isJumping = true;
				}
			}
		}
	}
	// Check memecoin collisions
	for (var i = 0; i < memecoins.length; i++) {
		var coin = memecoins[i];
		if (coin.active && !coin.collected && player && player.intersects(coin)) {
			// Collect coin
			coin.collected = true;
			// Add points
			score += 50;
			scoreTxt.setText('SCORE: ' + Math.floor(score));
			// Flash coin and remove
			LK.effects.flashObject(coin, 0xFFFFFF, 300);
			LK.getSound('coinCollect').play();
			tween(coin, {
				alpha: 0,
				scaleX: 2,
				scaleY: 2
			}, {
				duration: 300,
				onFinish: function onFinish() {
					coin.active = false;
				}
			});
		}
	}
	// Check shark collision
	if (player.y > 2732 - 250 && player.intersects(shark)) {
		// Game over if player touches shark
		gameOver();
	}
}
// Clean up inactive entities
function cleanupEntities() {
	// Remove inactive signals
	for (var i = signals.length - 1; i >= 0; i--) {
		// Only remove signals if player is not jumping or falling and we have enough signals
		if (!signals[i].active && (!player || !player.isJumping && player.vy <= 0) && signals.length > 44) {
			signals[i].destroy();
			signals.splice(i, 1);
		}
	}
	// Remove inactive coins
	for (var i = memecoins.length - 1; i >= 0; i--) {
		if (!memecoins[i].active) {
			memecoins[i].destroy();
			memecoins.splice(i, 1);
		}
	}
}
// Game over
function gameOver() {
	isGameActive = false;
	player.isDead = true;
	// Play crash sound
	LK.getSound('crash').play();
	// Flash screen red
	LK.effects.flashScreen(0xFF0000, 500);
	// Update high score
	var highScore = storage.highScore || 0;
	if (score > highScore) {
		storage.highScore = score;
		highScoreTxt.setText('HIGH SCORE: ' + Math.floor(score));
	}
	// Show game over after a short delay
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 800);
}
// Input handling
game.down = function (x, y, obj) {
	// Jump when tapping/clicking
	player.jump();
};
// Main game update loop
game.update = function () {
	if (!isGameActive) {
		return;
	}
	// Update score based on distance
	distanceTraveled += gameSpeed;
	score += scoreIncrement * gameSpeed;
	// Update score display occasionally to avoid text updates every frame
	if (Math.floor(score) % 5 === 0) {
		scoreTxt.setText('SCORE: ' + Math.floor(score));
	}
	// Increase game speed gradually
	gameSpeed = 1 + distanceTraveled / 10000;
	// Spawn entities
	spawnSignal();
	spawnMemecoin();
	// Check collisions
	checkCollisions();
	// Remove inactive entities
	cleanupEntities();
	// Check if player fell off screen
	if (player.y > 2732 + 200) {
		gameOver();
	}
};
// Initialize UI and game
initUI();
initGame();
// Track signal status globally
game.onEntityDestroyed = function (entity) {
	// Keep track of destroyed entities if needed
	if (entity instanceof Signal && player && (player.isJumping || player.vy > 0)) {
		// Keep signals around longer if player is falling or jumping
		return false;
	}
	return true;
};

===================================================================
--- original.js
+++ change.js
@@ -283,9 +283,9 @@
 	}
 	// Check memecoin collisions
 	for (var i = 0; i < memecoins.length; i++) {
 		var coin = memecoins[i];
-		if (coin.active && !coin.collected && player.intersects(coin)) {
+		if (coin.active && !coin.collected && player && player.intersects(coin)) {
 			// Collect coin
 			coin.collected = true;
 			// Add points
 			score += 50;