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

/**** 
* Classes
****/ 
var Fish = Container.expand(function () {
	var self = Container.call(this);
	// Attach fish asset
	var fishGraphics = self.attachAsset('fish', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set fish properties
	self.speed = 5;
	self.collected = false;
	// Add some animation
	self.bobAmount = 20;
	self.bobSpeed = 0.05;
	self.startY = 0;
	self.bobPhase = Math.random() * Math.PI * 2; // Random starting phase
	self.update = function () {
		// Move fish to the left
		self.x -= self.speed;
		// Bob up and down
		if (self.startY) {
			self.bobPhase += self.bobSpeed;
			self.y = self.startY + Math.sin(self.bobPhase) * self.bobAmount;
		} else {
			self.startY = self.y;
		}
	};
	return self;
});
var Ground = Container.expand(function () {
	var self = Container.call(this);
	// Attach ground asset
	var groundGraphics = self.attachAsset('ground', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
// Game state variables
var Penguin = Container.expand(function () {
	var self = Container.call(this);
	// Attach penguin asset
	var penguinGraphics = self.attachAsset('penguin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Physics properties
	self.velocity = 0;
	self.gravity = 0.5;
	self.flapStrength = -10;
	self.rotation = 0;
	self.isShielded = false;
	self.shieldTimer = 0;
	// Initialize last positions for collision detection
	self.lastY = 0;
	self.lastWasColliding = false;
	// Create shield visual (initially hidden)
	var shield = self.attachAsset('shield', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	});
	shield.scale.set(2);
	self.flap = function () {
		self.velocity = self.flapStrength;
		LK.getSound('flap').play();
	};
	self.activateShield = function (duration) {
		self.isShielded = true;
		self.shieldTimer = duration;
		shield.alpha = 0.7;
		LK.getSound('powerup').play();
	};
	self.update = function () {
		// Store last position
		self.lastY = self.y;
		// Apply gravity and update position
		self.velocity += self.gravity;
		self.y += self.velocity;
		// Update rotation based on velocity
		var targetRotation = Math.min(Math.max(self.velocity * 0.04, -0.5), 0.5);
		self.rotation += (targetRotation - self.rotation) * 0.1;
		penguinGraphics.rotation = self.rotation;
		// Update shield timer
		if (self.isShielded) {
			self.shieldTimer--;
			if (self.shieldTimer <= 0) {
				self.isShielded = false;
				shield.alpha = 0;
			}
		}
	};
	// Collision check method
	self.checkCollision = function (object) {
		return self.intersects(object);
	};
	return self;
});
var Pillar = Container.expand(function () {
	var self = Container.call(this);
	// Create top and bottom pillars
	var topPillar = self.attachAsset('pillarTop', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	var bottomPillar = self.attachAsset('pillarBottom', {
		anchorX: 0.5,
		anchorY: 0.0
	});
	// Set pillar properties
	self.speed = 5;
	self.passed = false;
	self.gap = 550; // Gap between pillars
	// Position the pillars
	self.setGapPosition = function (yPosition) {
		topPillar.y = yPosition - self.gap / 2;
		bottomPillar.y = yPosition + self.gap / 2;
	};
	self.update = function () {
		// Move pillar to the left
		self.x -= self.speed;
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	// Initialize with default type
	self.type = "shield";
	self.speed = 5;
	self.collected = false;
	// Method to set the power-up type
	self.setType = function (type) {
		self.type = type;
		// Remove existing graphic if any
		while (self.children.length > 0) {
			self.removeChild(self.children[0]);
		}
		// Add new graphic based on type
		var assetId;
		if (type === "shield") {
			assetId = 'shield';
		} else if (type === "slowMotion") {
			assetId = 'slowMotion';
		} else if (type === "magnet") {
			assetId = 'magnet';
		}
		self.attachAsset(assetId, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// Add pulsing animation
		tween(self.scale, {
			x: 1.2,
			y: 1.2
		}, {
			duration: 500,
			repeat: -1,
			yoyo: true
		});
	};
	self.update = function () {
		// Move power-up to the left
		self.x -= self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game state variables
var gameStarted = false;
var gameOver = false;
var score = 0;
var highScore = storage.highScore || 0;
// Game speed (for slow motion power-up)
var gameSpeed = 1;
var normalSpeed = 1;
var slowMotionSpeed = 0.6;
var slowMotionTimer = 0;
// Game object arrays
var pillars = [];
var fishes = [];
var powerUps = [];
// Magnet power-up variables
var magnetActive = false;
var magnetTimer = 0;
var magnetRange = 300;
// Set up the game background
game.setBackgroundColor(0x87CEEB); // Sky blue background
// Create the penguin
var penguin = new Penguin();
penguin.x = 400;
penguin.y = 1366;
game.addChild(penguin);
// Create the ground
var ground = new Ground();
ground.x = 1024;
ground.y = 2650;
game.addChild(ground);
// Spawn timers
var pillarSpawnTimer = 0;
var pillarSpawnInterval = 120; // 2 seconds at 60 FPS
var fishSpawnTimer = 0;
var powerUpSpawnTimer = 0;
// Create score text
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create tap to start text
var startTxt = new Text2('TAP TO FLAP', {
	size: 80,
	fill: 0xFFFFFF
});
startTxt.anchor.set(0.5, 0.5);
startTxt.y = 200;
LK.gui.center.addChild(startTxt);
// Start the background music
LK.playMusic('bgMusic', {
	fade: {
		start: 0,
		end: 0.5,
		duration: 1000
	}
});
// Handle game input events
game.down = function (x, y, obj) {
	if (!gameOver) {
		if (!gameStarted) {
			gameStarted = true;
			startTxt.visible = false;
		}
		penguin.flap();
	}
};
// Spawn a new pillar
function spawnPillar() {
	var pillar = new Pillar();
	pillar.x = 2300; // Just off-screen to the right
	// Random y position for the gap
	var minY = 900;
	var maxY = 2000;
	var gapY = minY + Math.random() * (maxY - minY);
	pillar.setGapPosition(gapY);
	pillars.push(pillar);
	game.addChild(pillar);
}
// Spawn a fish
function spawnFish() {
	var fish = new Fish();
	fish.x = 2300; // Just off-screen to the right
	fish.y = 900 + Math.random() * 1000; // Random height
	fishes.push(fish);
	game.addChild(fish);
}
// Spawn a power-up
function spawnPowerUp() {
	var powerUp = new PowerUp();
	powerUp.x = 2300; // Just off-screen to the right
	powerUp.y = 900 + Math.random() * 1000; // Random height
	// Random power-up type
	var types = ["shield", "slowMotion", "magnet"];
	var type = types[Math.floor(Math.random() * types.length)];
	powerUp.setType(type);
	powerUps.push(powerUp);
	game.addChild(powerUp);
}
// Apply power-up effect
function applyPowerUp(type) {
	if (type === "shield") {
		penguin.activateShield(300); // 5 seconds at 60 FPS
	} else if (type === "slowMotion") {
		gameSpeed = slowMotionSpeed;
		slowMotionTimer = 300; // 5 seconds at 60 FPS
		LK.getSound('powerup').play();
	} else if (type === "magnet") {
		magnetActive = true;
		magnetTimer = 300; // 5 seconds at 60 FPS
		LK.getSound('powerup').play();
	}
}
// Main game update loop
game.update = function () {
	if (!gameStarted) return;
	// Update game speed (slow motion power-up)
	if (slowMotionTimer > 0) {
		slowMotionTimer--;
		if (slowMotionTimer <= 0) {
			gameSpeed = normalSpeed;
		}
	}
	// Update magnet power-up
	if (magnetActive) {
		magnetTimer--;
		if (magnetTimer <= 0) {
			magnetActive = false;
		}
	}
	// Update penguin
	penguin.update();
	// Check if penguin hits the ground
	if (!gameOver && penguin.y > 2600) {
		endGame();
	}
	// Check if penguin hits the ceiling
	if (!gameOver && penguin.y < 100) {
		penguin.y = 100;
		penguin.velocity = 0;
	}
	// Spawn pillars
	pillarSpawnTimer++;
	if (pillarSpawnTimer >= pillarSpawnInterval * gameSpeed) {
		spawnPillar();
		pillarSpawnTimer = 0;
	}
	// Spawn fishes
	fishSpawnTimer++;
	if (fishSpawnTimer >= 240 * gameSpeed) {
		// 4 seconds
		spawnFish();
		fishSpawnTimer = 0;
	}
	// Spawn power-ups (less frequently)
	powerUpSpawnTimer++;
	if (powerUpSpawnTimer >= 600 * gameSpeed) {
		// 10 seconds
		spawnPowerUp();
		powerUpSpawnTimer = 0;
	}
	// Update pillars
	for (var i = pillars.length - 1; i >= 0; i--) {
		var pillar = pillars[i];
		pillar.speed = 5 * gameSpeed;
		pillar.update();
		// Check for collisions if not game over and not shielded
		if (!gameOver && !penguin.isShielded) {
			// Check collision with top pillar
			if (penguin.checkCollision(pillar.children[0])) {
				endGame();
				break;
			}
			// Check collision with bottom pillar
			if (penguin.checkCollision(pillar.children[1])) {
				endGame();
				break;
			}
		}
		// Check if penguin passed the pillar
		if (!pillar.passed && pillar.x < penguin.x) {
			score++;
			scoreTxt.setText(score.toString());
			pillar.passed = true;
		}
		// Remove pillars that are off-screen
		if (pillar.x < -200) {
			pillar.destroy();
			pillars.splice(i, 1);
		}
	}
	// Update fishes
	for (var j = fishes.length - 1; j >= 0; j--) {
		var fish = fishes[j];
		fish.speed = 5 * gameSpeed;
		fish.update();
		// Apply magnet effect if active
		if (magnetActive) {
			var dx = penguin.x - fish.x;
			var dy = penguin.y - fish.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < magnetRange) {
				// Move fish toward penguin
				fish.x += dx * 0.1;
				fish.y += dy * 0.1;
			}
		}
		// Check if penguin collected the fish
		if (!fish.collected && penguin.checkCollision(fish)) {
			fish.collected = true;
			fish.alpha = 0;
			// Award points
			score += 3;
			scoreTxt.setText(score.toString());
			// Play collect sound
			LK.getSound('collect').play();
			// Show a +3 text effect
			var plusText = new Text2('+3', {
				size: 60,
				fill: 0xFFFF00
			});
			plusText.x = fish.x;
			plusText.y = fish.y;
			plusText.anchor.set(0.5, 0.5);
			game.addChild(plusText);
			// Animate and remove the text
			tween(plusText, {
				y: plusText.y - 100,
				alpha: 0
			}, {
				duration: 1000,
				onComplete: function onComplete() {
					plusText.destroy();
				}
			});
		}
		// Remove fishes that are off-screen
		if (fish.x < -100) {
			fish.destroy();
			fishes.splice(j, 1);
		}
	}
	// Update power-ups
	for (var k = powerUps.length - 1; k >= 0; k--) {
		var powerUp = powerUps[k];
		powerUp.speed = 5 * gameSpeed;
		powerUp.update();
		// Check if penguin collected the power-up
		if (!powerUp.collected && penguin.checkCollision(powerUp)) {
			powerUp.collected = true;
			powerUp.alpha = 0;
			// Apply the power-up effect
			applyPowerUp(powerUp.type);
		}
		// Remove power-ups that are off-screen
		if (powerUp.x < -100) {
			powerUp.destroy();
			powerUps.splice(k, 1);
		}
	}
};
// End the game
function endGame() {
	if (gameOver) return;
	gameOver = true;
	LK.getSound('crash').play();
	// Flash the screen
	LK.effects.flashScreen(0xFF0000, 500);
	// Update high score
	if (score > highScore) {
		highScore = score;
		storage.highScore = highScore;
	}
	// Show game over screen
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 1000);
}

===================================================================
--- original.js
+++ change.js
@@ -409,11 +409,12 @@
 			plusText.y = fish.y;
 			plusText.anchor.set(0.5, 0.5);
 			game.addChild(plusText);
 			// Animate and remove the text
-			tween.to(plusText, {
+			tween(plusText, {
 				y: plusText.y - 100,
-				alpha: 0,
+				alpha: 0
+			}, {
 				duration: 1000,
 				onComplete: function onComplete() {
 					plusText.destroy();
 				}