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

/**** 
* Classes
****/ 
var FusionBall = Container.expand(function (tier) {
	var self = Container.call(this);
	self.tier = tier || 1;
	self.assetId = 'ball_tier' + self.tier;
	var ballGraphics = self.attachAsset(self.assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.5;
	self.bounce = 0.7;
	self.lastIntersecting = false;
	self.lastPortalUsed = null;
	self.portalCooldown = 0;
	self.update = function () {
		if (self.portalCooldown > 0) {
			self.portalCooldown--;
		}
		// Apply physics
		self.velocityY += self.gravity;
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Container bounds collision
		var radius = ballGraphics.width / 2;
		if (self.x - radius < containerBounds.left) {
			self.x = containerBounds.left + radius;
			self.velocityX *= -self.bounce;
		}
		if (self.x + radius > containerBounds.right) {
			self.x = containerBounds.right - radius;
			self.velocityX *= -self.bounce;
		}
		if (self.y + radius > containerBounds.bottom) {
			self.y = containerBounds.bottom - radius;
			self.velocityY *= -self.bounce;
			self.velocityX *= 0.8; // Friction
		}
		// Top boundary - game over condition
		if (self.y - radius < containerBounds.top) {
			gameOverTriggered = true;
		}
	};
	return self;
});
var Portal = Container.expand(function (isEntrance) {
	var self = Container.call(this);
	self.isEntrance = isEntrance || false;
	var portalGraphics = self.attachAsset(self.isEntrance ? 'portal_entrance' : 'portal_exit', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.paired = null;
	self.animationPhase = 0;
	self.update = function () {
		self.animationPhase += 0.15;
		portalGraphics.rotation = self.animationPhase;
		portalGraphics.scaleX = 1 + Math.sin(self.animationPhase * 2) * 0.1;
		portalGraphics.scaleY = 1 + Math.sin(self.animationPhase * 2) * 0.1;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x001122
});

/**** 
* Game Code
****/ 
// Game variables
var level = 1;
var gameMode = 'normal'; // normal, gravity, speed, chaos, mega
var balls = [];
var portals = [];
var currentBallTier = 1;
var nextBallTier = 1;
var gameOverTriggered = false;
var portalSpawnTimer = 0;
var containerBounds = {};
// UI elements
var levelText, modeText, scoreText, nextBallPreview;
// Initialize container
var container = game.addChild(LK.getAsset('container', {
	anchorX: 0.5,
	anchorY: 0.5
}));
container.x = 1024;
container.y = 1366;
container.alpha = 0.3;
// Set container bounds
containerBounds = {
	left: 324,
	right: 1724,
	top: 466,
	bottom: 2266
};
// Create UI
levelText = new Text2('Level: 1', {
	size: 60,
	fill: 0xFFFFFF
});
levelText.anchor.set(0.5, 0);
LK.gui.top.addChild(levelText);
levelText.y = 80;
modeText = new Text2('Mode: Normal', {
	size: 50,
	fill: 0x00FFFF
});
modeText.anchor.set(0.5, 0);
LK.gui.top.addChild(modeText);
modeText.y = 150;
scoreText = new Text2('Score: 0', {
	size: 70,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
scoreText.y = 220;
nextBallPreview = game.addChild(new FusionBall(1));
nextBallPreview.x = 1024;
nextBallPreview.y = 350;
nextBallPreview.alpha = 0.7;
function updateGameMode() {
	var newMode = 'normal';
	var modeLevel = Math.floor((level - 1) / 5) + 1;
	if (modeLevel === 1) newMode = 'normal';else if (modeLevel === 2) newMode = 'gravity';else if (modeLevel === 3) newMode = 'speed';else if (modeLevel === 4) newMode = 'chaos';else newMode = 'mega';
	if (newMode !== gameMode) {
		gameMode = newMode;
		modeText.setText('Mode: ' + gameMode.charAt(0).toUpperCase() + gameMode.slice(1));
		LK.getSound('levelup').play();
	}
}
function spawnPortalPair() {
	if (portals.length >= 4) return;
	var portal1 = game.addChild(new Portal(true));
	var portal2 = game.addChild(new Portal(false));
	// Position portals within container bounds
	portal1.x = containerBounds.left + 100 + Math.random() * (containerBounds.right - containerBounds.left - 200);
	portal1.y = containerBounds.top + 100 + Math.random() * (containerBounds.bottom - containerBounds.top - 200);
	portal2.x = containerBounds.left + 100 + Math.random() * (containerBounds.right - containerBounds.left - 200);
	portal2.y = containerBounds.top + 100 + Math.random() * (containerBounds.bottom - containerBounds.top - 200);
	// Pair them
	portal1.paired = portal2;
	portal2.paired = portal1;
	portals.push(portal1, portal2);
	// Remove portals after 8 seconds
	LK.setTimeout(function () {
		var index1 = portals.indexOf(portal1);
		var index2 = portals.indexOf(portal2);
		if (index1 >= 0) {
			portal1.destroy();
			portals.splice(index1, 1);
		}
		if (index2 >= 0) {
			portal2.destroy();
			portals.splice(index2, 1);
		}
	}, 8000);
}
function checkFusions() {
	for (var i = 0; i < balls.length; i++) {
		for (var j = i + 1; j < balls.length; j++) {
			var ball1 = balls[i];
			var ball2 = balls[j];
			if (ball1.tier === ball2.tier && ball1.intersects(ball2)) {
				// Create fusion ball
				var newTier = Math.min(ball1.tier + 1, 7);
				var fusionBall = game.addChild(new FusionBall(newTier));
				fusionBall.x = (ball1.x + ball2.x) / 2;
				fusionBall.y = (ball1.y + ball2.y) / 2;
				fusionBall.velocityX = (ball1.velocityX + ball2.velocityX) / 2;
				fusionBall.velocityY = (ball1.velocityY + ball2.velocityY) / 2;
				// Add to balls array
				balls.push(fusionBall);
				// Remove original balls
				ball1.destroy();
				ball2.destroy();
				balls.splice(j, 1);
				balls.splice(i, 1);
				// Update score
				var points = newTier * 10;
				LK.setScore(LK.getScore() + points);
				scoreText.setText('Score: ' + LK.getScore());
				LK.getSound('fusion').play();
				// Check win condition
				if (newTier === 7) {
					level++;
					levelText.setText('Level: ' + level);
					updateGameMode();
				}
				return; // Only process one fusion per frame
			}
		}
	}
}
function checkPortalCollisions() {
	balls.forEach(function (ball) {
		if (ball.portalCooldown === 0) {
			portals.forEach(function (portal) {
				if (ball.intersects(portal) && portal.paired && ball.lastPortalUsed !== portal) {
					// Teleport ball
					ball.x = portal.paired.x;
					ball.y = portal.paired.y;
					ball.lastPortalUsed = portal;
					ball.portalCooldown = 60;
					LK.setScore(LK.getScore() + 5);
					scoreText.setText('Score: ' + LK.getScore());
					LK.getSound('portal_sound').play();
					// Portal effect
					tween(portal.paired.getChildAt(0), {
						scaleX: 1.5,
						scaleY: 1.5
					}, {
						duration: 300,
						easing: tween.easeOut,
						onFinish: function onFinish() {
							tween(portal.paired.getChildAt(0), {
								scaleX: 1,
								scaleY: 1
							}, {
								duration: 200
							});
						}
					});
				}
			});
		}
	});
}
function generateNextBallTier() {
	var maxTier = Math.min(3 + Math.floor(level / 3), 5);
	nextBallTier = Math.floor(Math.random() * maxTier) + 1;
	nextBallPreview.destroy();
	nextBallPreview = game.addChild(new FusionBall(nextBallTier));
	nextBallPreview.x = 1024;
	nextBallPreview.y = 350;
	nextBallPreview.alpha = 0.7;
}
// Touch controls - drop ball on tap
game.down = function (x, y, obj) {
	if (gameOverTriggered) return;
	var newBall = game.addChild(new FusionBall(nextBallTier));
	newBall.x = Math.max(containerBounds.left + 40, Math.min(x, containerBounds.right - 40));
	newBall.y = containerBounds.top - 50;
	newBall.velocityY = 2;
	balls.push(newBall);
	LK.getSound('drop').play();
	generateNextBallTier();
};
// Initialize first ball tier
generateNextBallTier();
// Main game loop
game.update = function () {
	if (gameOverTriggered) {
		LK.showGameOver();
		return;
	}
	// Update game mode
	updateGameMode();
	// Spawn portals periodically
	portalSpawnTimer++;
	if (portalSpawnTimer > 180 + Math.random() * 120) {
		spawnPortalPair();
		portalSpawnTimer = 0;
	}
	// Check fusions
	checkFusions();
	// Check portal collisions
	checkPortalCollisions();
	// Apply mode-specific effects
	if (gameMode === 'gravity') {
		balls.forEach(function (ball) {
			ball.gravity = 0.8;
		});
	} else if (gameMode === 'speed') {
		balls.forEach(function (ball) {
			ball.gravity = 0.3;
			ball.velocityX *= 1.02;
		});
	} else if (gameMode === 'chaos') {
		balls.forEach(function (ball) {
			if (Math.random() < 0.01) {
				ball.velocityX += (Math.random() - 0.5) * 2;
			}
		});
	} else if (gameMode === 'mega') {
		balls.forEach(function (ball) {
			ball.gravity = 1.0;
			if (Math.random() < 0.005) {
				ball.velocityX += (Math.random() - 0.5) * 3;
			}
		});
	} else {
		balls.forEach(function (ball) {
			ball.gravity = 0.5;
		});
	}
};

===================================================================
--- original.js
+++ change.js