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

/**** 
* Classes
****/ 
var Particle = Container.expand(function (x, y, color) {
	var self = Container.call(this);
	var graphics = self.attachAsset('feedbackPerfect', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = color || 0xFFD700;
	graphics.width = 20;
	graphics.height = 20;
	self.x = x;
	self.y = y;
	self.vx = (Math.random() - 0.5) * 10;
	self.vy = (Math.random() - 0.5) * 10 - 5;
	self.life = 60;
	self.maxLife = 60;
	self.update = function () {
		self.x += self.vx;
		self.y += self.vy;
		self.vy += 0.2; // gravity
		self.life--;
		self.alpha = self.life / self.maxLife;
		if (self.life <= 0) {
			self.destroy();
		}
	};
	return self;
});
var PowerTile = Container.expand(function (laneIndex, powerType) {
	var self = Container.call(this);
	var graphics = self.attachAsset('quickTile' + laneIndex, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Tint based on power type
	if (powerType === 'double') {
		graphics.tint = 0xFFD700; // Gold for double score
	} else if (powerType === 'slow') {
		graphics.tint = 0x00FFFF; // Cyan for slow time
	} else if (powerType === 'shield') {
		graphics.tint = 0x00FF00; // Green for shield
	}
	self.speed = 12;
	self.lane = laneIndex || 0;
	self.powerType = powerType;
	self.hit = false;
	self.missed = false;
	self.earlyPressed = false;
	self.destroyed = false;
	// Add pulsing effect
	self.pulseTimer = 0;
	self.update = function () {
		if (self.destroyed) return;
		self.y += self.speed;
		// Pulsing effect
		self.pulseTimer++;
		graphics.scaleX = 1 + Math.sin(self.pulseTimer * 0.2) * 0.1;
		graphics.scaleY = 1 + Math.sin(self.pulseTimer * 0.2) * 0.1;
		// Check if tile is past hit line and not hit
		if (self.y > hitLineY + 80 && !self.hit && !self.missed) {
			self.missed = true;
			comboCount = 0;
			comboMultiplier = 1;
			perfectStreak = 0;
			showFeedback('MISSED', self.lane);
			LK.getSound('miss').play();
			LK.showGameOver();
		}
	};
	return self;
});
var QuickTile = Container.expand(function (laneIndex) {
	var self = Container.call(this);
	var assetName = 'quickTile' + laneIndex;
	var graphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 12;
	self.lane = laneIndex || 0;
	self.hit = false;
	self.missed = false;
	self.earlyPressed = false;
	self.destroyed = false;
	self.update = function () {
		if (self.destroyed) return;
		self.y += self.speed;
		// Check if tile is past hit line and not hit
		if (self.y > hitLineY + 80 && !self.hit && !self.missed) {
			self.missed = true;
			comboCount = 0; // Reset combo on miss
			comboMultiplier = 1; // Reset multiplier
			perfectStreak = 0; // Reset perfect streak
			showFeedback('MISSED', self.lane);
			LK.getSound('miss').play();
			LK.showGameOver();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a1a
});

/**** 
* Game Code
****/ 
var lanes = [];
var hitLineY = 2200;
var tiles = [];
var activeLanes = [false, false, false, false];
var comboCount = 0;
var tileSpawnTimer = 0;
var feedbackTexts = [];
var tileSpawnInterval = 45;
var gameSpeed = 1;
var earlyCount = 0;
var keyPressCount = 0;
var particles = [];
var comboMultiplier = 1;
var perfectStreak = 0;
var lastHitTime = 0;
var currentLevel = storage.currentLevel || 1;
var powerTiles = [];
var activePowerUps = {
	doubleScore: 0,
	slowTime: 0,
	shield: 0
};
// Achievement definitions
var achievements = {
	firstWin: {
		name: "First Steps",
		desc: "Complete your first game",
		unlocked: false
	},
	perfectionist: {
		name: "Perfectionist",
		desc: "Get 50 perfect hits in a row",
		unlocked: false
	},
	speedDemon: {
		name: "Speed Demon",
		desc: "Reach level 5",
		unlocked: false
	},
	comboMaster: {
		name: "Combo Master",
		desc: "Achieve a 100+ combo",
		unlocked: false
	},
	highScorer: {
		name: "High Scorer",
		desc: "Score 10,000 points",
		unlocked: false
	}
};
// Load saved achievements
for (var key in achievements) {
	if (storage.achievements && storage.achievements[key]) {
		achievements[key].unlocked = true;
	}
}
// Create lanes
for (var i = 0; i < 4; i++) {
	var lane = game.addChild(LK.getAsset('lane', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	lane.x = 256 + i * 512;
	lane.y = 1366;
	lanes.push(lane);
}
// Create hit line
var hitLine = game.addChild(LK.getAsset('hitLine', {
	anchorX: 0.5,
	anchorY: 0.5
}));
hitLine.x = 1024;
hitLine.y = hitLineY;
// Create lane dividers
for (var i = 1; i < 4; i++) {
	var divider = game.addChild(LK.getAsset('laneDivider', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	divider.x = i * 512;
	divider.y = 1366;
}
// Create UI
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var comboText = new Text2('Combo: 0', {
	size: 60,
	fill: 0xFFFF00
});
comboText.anchor.set(0.5, 0);
comboText.y = 100;
LK.gui.top.addChild(comboText);
var earlyText = new Text2('Early: 0/3', {
	size: 60,
	fill: 0xFF4444
});
earlyText.anchor.set(0.5, 0);
earlyText.y = 160;
LK.gui.top.addChild(earlyText);
var streakText = new Text2('Streak: 0', {
	size: 50,
	fill: 0x00FFFF
});
streakText.anchor.set(0.5, 0);
streakText.y = 220;
LK.gui.top.addChild(streakText);
var multiplierText = new Text2('x1', {
	size: 80,
	fill: 0xFFD700
});
multiplierText.anchor.set(1, 0);
multiplierText.x = -20;
multiplierText.y = 20;
LK.gui.topRight.addChild(multiplierText);
var levelText = new Text2('Level: ' + currentLevel, {
	size: 50,
	fill: 0xFFFFFF
});
levelText.anchor.set(0, 0);
levelText.x = 20;
levelText.y = 20;
LK.gui.topLeft.addChild(levelText);
var highScoreText = new Text2('Best: ' + storage.highScore, {
	size: 40,
	fill: 0xFFD700
});
highScoreText.anchor.set(0, 0);
highScoreText.x = 20;
highScoreText.y = 80;
LK.gui.topLeft.addChild(highScoreText);
function updateScoreDisplay() {
	scoreText.setText('Score: ' + LK.getScore());
	comboText.setText('Combo: ' + comboCount);
	earlyText.setText('Early: ' + earlyCount + '/3');
	streakText.setText('Streak: ' + perfectStreak);
	multiplierText.setText('x' + comboMultiplier);
	levelText.setText('Level: ' + currentLevel);
	highScoreText.setText('Best: ' + storage.highScore);
	// Update multiplier color based on value
	if (comboMultiplier >= 4) {
		multiplierText.fill = 0xFF0000; // Red for 4x+
	} else if (comboMultiplier >= 3) {
		multiplierText.fill = 0xFF8800; // Orange for 3x
	} else if (comboMultiplier >= 2) {
		multiplierText.fill = 0xFFD700; // Gold for 2x
	} else {
		multiplierText.fill = 0xFFFFFF; // White for 1x
	}
	// Check achievements
	checkAchievements();
}
function showFeedback(text, laneIndex) {
	var assetName = 'feedback' + text.charAt(0).toUpperCase() + text.slice(1).toLowerCase();
	var feedbackImage = game.addChild(LK.getAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	feedbackImage.x = 1024; // Center of screen
	feedbackImage.y = 1366; // Center of screen vertically
	feedbackImage.alpha = 1;
	feedbackTexts.push(feedbackImage);
	// Add score display based on feedback type
	var scoreDisplay;
	if (text === 'NICE') {
		scoreDisplay = game.addChild(LK.getAsset('positiveScoreDisplay', {
			anchorX: 0.5,
			anchorY: 0.5
		}));
	} else {
		scoreDisplay = game.addChild(LK.getAsset('negativeScoreDisplay', {
			anchorX: 0.5,
			anchorY: 0.5
		}));
	}
	scoreDisplay.x = 1024; // Center of screen
	scoreDisplay.y = 1450; // Below feedback
	scoreDisplay.alpha = 1;
	feedbackTexts.push(scoreDisplay);
	// Create score text overlay
	var scoreChangeText = new Text2('', {
		size: 60,
		fill: text === 'NICE' ? 0x00FF00 : 0xFF0000
	});
	scoreChangeText.anchor.set(0.5, 0.5);
	scoreChangeText.x = scoreDisplay.x;
	scoreChangeText.y = scoreDisplay.y;
	if (text === 'NICE') {
		scoreChangeText.setText('+10');
	} else if (text === 'EARLY') {
		scoreChangeText.setText('-30');
	} else if (text === 'MISSED') {
		scoreChangeText.setText('0');
	}
	game.addChild(scoreChangeText);
	feedbackTexts.push(scoreChangeText);
	tween(feedbackImage, {
		alpha: 0,
		y: feedbackImage.y - 100
	}, {
		duration: 1000,
		onFinish: function onFinish() {
			feedbackImage.destroy();
			var index = feedbackTexts.indexOf(feedbackImage);
			if (index > -1) feedbackTexts.splice(index, 1);
		}
	});
	tween(scoreDisplay, {
		alpha: 0,
		y: scoreDisplay.y - 100
	}, {
		duration: 1000,
		onFinish: function onFinish() {
			scoreDisplay.destroy();
			var index = feedbackTexts.indexOf(scoreDisplay);
			if (index > -1) feedbackTexts.splice(index, 1);
		}
	});
	tween(scoreChangeText, {
		alpha: 0,
		y: scoreChangeText.y - 100
	}, {
		duration: 1000,
		onFinish: function onFinish() {
			scoreChangeText.destroy();
			var index = feedbackTexts.indexOf(scoreChangeText);
			if (index > -1) feedbackTexts.splice(index, 1);
		}
	});
}
function spawnTile() {
	// 5% chance to spawn power tile (increases with level)
	var powerChance = 0.05 + currentLevel * 0.01;
	if (Math.random() < powerChance) {
		spawnPowerTile();
		return;
	}
	// Adjusted spawn chances based on level
	var multiTileChance = 0.3 + currentLevel * 0.05; // More multi-tiles at higher levels
	var spawnTwo = Math.random() < multiTileChance;
	if (spawnTwo) {
		// Spawn two tiles in different lanes
		var laneIndex1 = Math.floor(Math.random() * 4);
		var laneIndex2;
		// Make sure second lane is different from first
		do {
			laneIndex2 = Math.floor(Math.random() * 4);
		} while (laneIndex2 === laneIndex1);
		// Create first tile
		var tile1 = new QuickTile(laneIndex1);
		tile1.x = 256 + laneIndex1 * 512;
		tile1.y = -100;
		tiles.push(tile1);
		game.addChild(tile1);
		// Create second tile
		var tile2 = new QuickTile(laneIndex2);
		tile2.x = 256 + laneIndex2 * 512;
		tile2.y = -100;
		tiles.push(tile2);
		game.addChild(tile2);
	} else {
		// Spawn single tile
		var laneIndex = Math.floor(Math.random() * 4);
		var tile = new QuickTile(laneIndex);
		tile.x = 256 + laneIndex * 512;
		tile.y = -100;
		tiles.push(tile);
		game.addChild(tile);
	}
}
function createParticles(x, y, count, color) {
	for (var i = 0; i < count; i++) {
		var particle = new Particle(x, y, color);
		particles.push(particle);
		game.addChild(particle);
	}
}
function checkAchievements() {
	var currentScore = LK.getScore();
	// High Scorer achievement
	if (currentScore >= 10000 && !achievements.highScorer.unlocked) {
		unlockAchievement('highScorer');
	}
	// Perfectionist achievement
	if (perfectStreak >= 50 && !achievements.perfectionist.unlocked) {
		unlockAchievement('perfectionist');
	}
	// Combo Master achievement
	if (comboCount >= 100 && !achievements.comboMaster.unlocked) {
		unlockAchievement('comboMaster');
	}
	// Speed Demon achievement
	if (currentLevel >= 5 && !achievements.speedDemon.unlocked) {
		unlockAchievement('speedDemon');
	}
	// Update high score
	if (currentScore > storage.highScore) {
		storage.highScore = currentScore;
	}
}
function unlockAchievement(achievementKey) {
	achievements[achievementKey].unlocked = true;
	if (!storage.achievements) storage.achievements = {};
	storage.achievements[achievementKey] = true;
	// Show achievement notification
	showAchievementNotification(achievements[achievementKey]);
	LK.effects.flashScreen(0xFFD700, 500);
}
function showAchievementNotification(achievement) {
	var achievementText = new Text2('Achievement Unlocked!\n' + achievement.name, {
		size: 60,
		fill: 0xFFD700
	});
	achievementText.anchor.set(0.5, 0.5);
	achievementText.x = 1024;
	achievementText.y = 800;
	game.addChild(achievementText);
	tween(achievementText, {
		alpha: 0,
		y: achievementText.y - 100
	}, {
		duration: 3000,
		onFinish: function onFinish() {
			achievementText.destroy();
		}
	});
}
function spawnPowerTile() {
	var powerTypes = ['double', 'slow', 'shield'];
	var powerType = powerTypes[Math.floor(Math.random() * powerTypes.length)];
	var laneIndex = Math.floor(Math.random() * 4);
	var powerTile = new PowerTile(laneIndex, powerType);
	powerTile.x = 256 + laneIndex * 512;
	powerTile.y = -100;
	powerTiles.push(powerTile);
	game.addChild(powerTile);
}
function activatePowerUp(powerType) {
	if (powerType === 'double') {
		activePowerUps.doubleScore = 600; // 10 seconds at 60fps
		showPowerUpNotification('Double Score!', 0xFFD700);
	} else if (powerType === 'slow') {
		activePowerUps.slowTime = 600;
		showPowerUpNotification('Slow Time!', 0x00FFFF);
	} else if (powerType === 'shield') {
		activePowerUps.shield = 600;
		showPowerUpNotification('Shield Active!', 0x00FF00);
	}
}
function showPowerUpNotification(text, color) {
	var powerText = new Text2(text, {
		size: 80,
		fill: color
	});
	powerText.anchor.set(0.5, 0.5);
	powerText.x = 1024;
	powerText.y = 1000;
	game.addChild(powerText);
	tween(powerText, {
		alpha: 0,
		scaleX: 1.5,
		scaleY: 1.5,
		y: powerText.y - 100
	}, {
		duration: 2000,
		onFinish: function onFinish() {
			powerText.destroy();
		}
	});
}
function getLaneFromX(x) {
	if (x < 512) return 0;
	if (x < 1024) return 1;
	if (x < 1536) return 2;
	return 3;
}
function activateLane(laneIndex) {
	if (laneIndex >= 0 && laneIndex < 4) {
		activeLanes[laneIndex] = true;
		lanes[laneIndex].removeChild(lanes[laneIndex].children[0]);
		var activeLane = LK.getAsset('laneActive', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		lanes[laneIndex].addChild(activeLane);
	}
}
function deactivateLane(laneIndex) {
	if (laneIndex >= 0 && laneIndex < 4) {
		activeLanes[laneIndex] = false;
		lanes[laneIndex].removeChild(lanes[laneIndex].children[0]);
		var normalLane = LK.getAsset('lane', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		lanes[laneIndex].addChild(normalLane);
	}
}
game.down = function (x, y, obj) {
	var laneIndex = getLaneFromX(x);
	activateLane(laneIndex);
	// Increment key press counter
	keyPressCount++;
	// Increase game speed by 2% every 5 key presses
	if (keyPressCount % 5 === 0) {
		gameSpeed *= 1.02;
	}
	// Add lane press animation
	tween(lanes[laneIndex], {
		scaleX: 1.05,
		scaleY: 1.05
	}, {
		duration: 100,
		easing: tween.easeOut
	});
	// Check for tile hits
	var hitTile = false;
	// Check power tiles first
	for (var i = 0; i < powerTiles.length; i++) {
		var powerTile = powerTiles[i];
		if (powerTile.lane === laneIndex && !powerTile.missed && !powerTile.earlyPressed) {
			var distance = Math.abs(powerTile.y - hitLineY);
			if (distance <= 80 && !powerTile.hit) {
				powerTile.hit = true;
				activatePowerUp(powerTile.powerType);
				createParticles(powerTile.x, powerTile.y, 12, 0xFFD700);
				tween(powerTile, {
					alpha: 0,
					scaleX: 2,
					scaleY: 2
				}, {
					duration: 300,
					onFinish: function onFinish() {
						if (!powerTile.destroyed) {
							powerTile.destroyed = true;
							powerTile.destroy();
						}
					}
				});
				hitTile = true;
				break;
			}
		}
	}
	// Check regular tiles
	for (var i = 0; i < tiles.length; i++) {
		var tile = tiles[i];
		if (tile.lane === laneIndex && !tile.missed && !tile.earlyPressed) {
			var distance = Math.abs(tile.y - hitLineY);
			if (distance <= 80) {
				// Handle QuickTile
				if (!tile.hit) {
					tile.hit = true;
					// Calculate combo multiplier
					comboMultiplier = Math.min(4, Math.floor(comboCount / 5) + 1);
					var baseScore = 10;
					// Apply power-up bonuses
					if (activePowerUps.doubleScore > 0) {
						baseScore *= 2;
					}
					var scoreToAdd = baseScore * comboMultiplier;
					// Check for perfect timing (within 20 pixels)
					var perfectTiming = distance <= 20;
					if (perfectTiming) {
						scoreToAdd *= 1.5; // 1.5x bonus for perfect timing
						perfectStreak++;
						createParticles(tile.x, tile.y, 8, 0xFFD700);
						// Screen flash for perfect streak milestones
						if (perfectStreak % 10 === 0) {
							LK.effects.flashScreen(0xFFD700, 200);
						}
					} else {
						perfectStreak = 0;
						createParticles(tile.x, tile.y, 5, 0x00FF00);
					}
					LK.setScore(LK.getScore() + Math.floor(scoreToAdd));
					comboCount++;
					lastHitTime = LK.ticks;
					// Decrement early count on nice hit (minimum 0)
					if (earlyCount > 0) {
						earlyCount--;
					}
					showFeedback('NICE', laneIndex);
					// Use random Piano1-Piano5 sounds for each tile hit
					var pianoSounds = ['Piano1', 'Piano2', 'Piano3', 'Piano4', 'Piano5'];
					var randomSound = pianoSounds[Math.floor(Math.random() * pianoSounds.length)];
					LK.getSound(randomSound).play();
					// Visual effect
					tween(tile, {
						alpha: 0,
						scaleX: 1.5,
						scaleY: 1.5
					}, {
						duration: 200,
						onFinish: function onFinish() {
							if (!tile.destroyed) {
								tile.destroyed = true;
								tile.destroy();
							}
						}
					});
					updateScoreDisplay();
					hitTile = true;
					break;
				}
			} else if (tile.y < hitLineY - 80) {
				// Early press
				tile.earlyPressed = true;
				comboCount = 0; // Reset combo on early press
				comboMultiplier = 1; // Reset multiplier
				perfectStreak = 0; // Reset perfect streak
				earlyCount++; // Increment early count
				showFeedback('EARLY', laneIndex);
				LK.getSound('early').play();
				LK.setScore(LK.getScore() - 30); // Deduct 30 points for early press
				// Check if 3 earlies reached
				if (earlyCount >= 3) {
					LK.showGameOver();
				}
				// Destroy tile immediately on early press
				tween(tile, {
					alpha: 0,
					scaleX: 0.5,
					scaleY: 0.5
				}, {
					duration: 200,
					onFinish: function onFinish() {
						if (!tile.destroyed) {
							tile.destroyed = true;
							tile.destroy();
						}
					}
				});
				updateScoreDisplay();
				hitTile = true;
				break;
			}
		}
	}
};
game.up = function (x, y, obj) {
	var laneIndex = getLaneFromX(x);
	deactivateLane(laneIndex);
	// Add lane release animation
	tween(lanes[laneIndex], {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 100,
		easing: tween.easeOut
	});
};
// Start background music
LK.playMusic('Music');
game.update = function () {
	// Update power-ups
	for (var powerType in activePowerUps) {
		if (activePowerUps[powerType] > 0) {
			activePowerUps[powerType]--;
		}
	}
	// Apply slow time effect
	var currentGameSpeed = gameSpeed;
	if (activePowerUps.slowTime > 0) {
		currentGameSpeed *= 0.5;
	}
	// Spawn tiles
	tileSpawnTimer++;
	var adjustedSpawnInterval = tileSpawnInterval;
	if (activePowerUps.slowTime > 0) {
		adjustedSpawnInterval *= 2;
	}
	if (tileSpawnTimer >= adjustedSpawnInterval) {
		spawnTile();
		tileSpawnTimer = 0;
		// Level progression system
		var targetScore = currentLevel * 1000;
		if (LK.getScore() >= targetScore) {
			currentLevel++;
			storage.currentLevel = currentLevel;
			if (currentLevel > storage.unlockedLevels) {
				storage.unlockedLevels = currentLevel;
			}
			showPowerUpNotification('Level Up! Level ' + currentLevel, 0xFF00FF);
			LK.effects.flashScreen(0xFF00FF, 800);
		}
		// Increase difficulty over time
		if (LK.ticks % 300 === 0) {
			gameSpeed += 0.15;
			tileSpawnInterval = Math.max(25, tileSpawnInterval - 1);
		}
	}
	// Clean up tiles
	for (var i = tiles.length - 1; i >= 0; i--) {
		var tile = tiles[i];
		if (!tile || tile.destroyed) {
			tiles.splice(i, 1);
			continue;
		}
		if (tile.y > 2800 || tile.hit || tile.missed && tile.y > hitLineY + 200 || tile.earlyPressed && tile.y > 2800) {
			tile.destroyed = true;
			tile.destroy();
			tiles.splice(i, 1);
		}
	}
	// Clean up power tiles
	for (var i = powerTiles.length - 1; i >= 0; i--) {
		var powerTile = powerTiles[i];
		if (!powerTile || powerTile.destroyed) {
			powerTiles.splice(i, 1);
			continue;
		}
		if (powerTile.y > 2800 || powerTile.hit || powerTile.missed && powerTile.y > hitLineY + 200) {
			powerTile.destroyed = true;
			powerTile.destroy();
			powerTiles.splice(i, 1);
		}
	}
	// Update tile speeds based on game speed
	var effectiveSpeed = gameSpeed;
	if (activePowerUps.slowTime > 0) {
		effectiveSpeed *= 0.5;
	}
	for (var i = 0; i < tiles.length; i++) {
		if (tiles[i] && !tiles[i].destroyed) {
			tiles[i].speed = 12 * effectiveSpeed;
		}
	}
	// Update power tile speeds
	for (var i = 0; i < powerTiles.length; i++) {
		if (powerTiles[i] && !powerTiles[i].destroyed) {
			powerTiles[i].speed = 12 * effectiveSpeed;
		}
	}
	// Update particles
	for (var i = particles.length - 1; i >= 0; i--) {
		var particle = particles[i];
		if (!particle || particle.life <= 0) {
			if (particle) particle.destroy();
			particles.splice(i, 1);
		}
	}
	// Combo decay system - reduce combo if no hits for 3 seconds
	if (LK.ticks - lastHitTime > 180 && comboCount > 0) {
		comboCount = Math.max(0, comboCount - 1);
		comboMultiplier = Math.min(4, Math.floor(comboCount / 5) + 1);
		updateScoreDisplay();
		lastHitTime = LK.ticks; // Reset timer to prevent rapid decay
	}
};
// Override game over to save progress and unlock achievements
var originalShowGameOver = LK.showGameOver;
LK.showGameOver = function () {
	// Save game stats
	storage.totalGamesPlayed++;
	if (LK.getScore() > storage.highScore) {
		storage.highScore = LK.getScore();
	}
	// Unlock first win achievement if it's the first game
	if (storage.totalGamesPlayed === 1 && !achievements.firstWin.unlocked) {
		unlockAchievement('firstWin');
	}
	// Call original game over
	originalShowGameOver();
};

===================================================================
--- original.js
+++ change.js
@@ -1,8 +1,15 @@
 /**** 
 * Plugins
 ****/ 
 var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1", {
+	highScore: 0,
+	currentLevel: 1,
+	totalGamesPlayed: 0,
+	achievements: {},
+	unlockedLevels: 1
+});
 
 /**** 
 * Classes
 ****/ 
@@ -32,8 +39,51 @@
 		}
 	};
 	return self;
 });
+var PowerTile = Container.expand(function (laneIndex, powerType) {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('quickTile' + laneIndex, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Tint based on power type
+	if (powerType === 'double') {
+		graphics.tint = 0xFFD700; // Gold for double score
+	} else if (powerType === 'slow') {
+		graphics.tint = 0x00FFFF; // Cyan for slow time
+	} else if (powerType === 'shield') {
+		graphics.tint = 0x00FF00; // Green for shield
+	}
+	self.speed = 12;
+	self.lane = laneIndex || 0;
+	self.powerType = powerType;
+	self.hit = false;
+	self.missed = false;
+	self.earlyPressed = false;
+	self.destroyed = false;
+	// Add pulsing effect
+	self.pulseTimer = 0;
+	self.update = function () {
+		if (self.destroyed) return;
+		self.y += self.speed;
+		// Pulsing effect
+		self.pulseTimer++;
+		graphics.scaleX = 1 + Math.sin(self.pulseTimer * 0.2) * 0.1;
+		graphics.scaleY = 1 + Math.sin(self.pulseTimer * 0.2) * 0.1;
+		// Check if tile is past hit line and not hit
+		if (self.y > hitLineY + 80 && !self.hit && !self.missed) {
+			self.missed = true;
+			comboCount = 0;
+			comboMultiplier = 1;
+			perfectStreak = 0;
+			showFeedback('MISSED', self.lane);
+			LK.getSound('miss').play();
+			LK.showGameOver();
+		}
+	};
+	return self;
+});
 var QuickTile = Container.expand(function (laneIndex) {
 	var self = Container.call(this);
 	var assetName = 'quickTile' + laneIndex;
 	var graphics = self.attachAsset(assetName, {
@@ -87,8 +137,49 @@
 var particles = [];
 var comboMultiplier = 1;
 var perfectStreak = 0;
 var lastHitTime = 0;
+var currentLevel = storage.currentLevel || 1;
+var powerTiles = [];
+var activePowerUps = {
+	doubleScore: 0,
+	slowTime: 0,
+	shield: 0
+};
+// Achievement definitions
+var achievements = {
+	firstWin: {
+		name: "First Steps",
+		desc: "Complete your first game",
+		unlocked: false
+	},
+	perfectionist: {
+		name: "Perfectionist",
+		desc: "Get 50 perfect hits in a row",
+		unlocked: false
+	},
+	speedDemon: {
+		name: "Speed Demon",
+		desc: "Reach level 5",
+		unlocked: false
+	},
+	comboMaster: {
+		name: "Combo Master",
+		desc: "Achieve a 100+ combo",
+		unlocked: false
+	},
+	highScorer: {
+		name: "High Scorer",
+		desc: "Score 10,000 points",
+		unlocked: false
+	}
+};
+// Load saved achievements
+for (var key in achievements) {
+	if (storage.achievements && storage.achievements[key]) {
+		achievements[key].unlocked = true;
+	}
+}
 // Create lanes
 for (var i = 0; i < 4; i++) {
 	var lane = game.addChild(LK.getAsset('lane', {
 		anchorX: 0.5,
@@ -149,14 +240,32 @@
 multiplierText.anchor.set(1, 0);
 multiplierText.x = -20;
 multiplierText.y = 20;
 LK.gui.topRight.addChild(multiplierText);
+var levelText = new Text2('Level: ' + currentLevel, {
+	size: 50,
+	fill: 0xFFFFFF
+});
+levelText.anchor.set(0, 0);
+levelText.x = 20;
+levelText.y = 20;
+LK.gui.topLeft.addChild(levelText);
+var highScoreText = new Text2('Best: ' + storage.highScore, {
+	size: 40,
+	fill: 0xFFD700
+});
+highScoreText.anchor.set(0, 0);
+highScoreText.x = 20;
+highScoreText.y = 80;
+LK.gui.topLeft.addChild(highScoreText);
 function updateScoreDisplay() {
 	scoreText.setText('Score: ' + LK.getScore());
 	comboText.setText('Combo: ' + comboCount);
 	earlyText.setText('Early: ' + earlyCount + '/3');
 	streakText.setText('Streak: ' + perfectStreak);
 	multiplierText.setText('x' + comboMultiplier);
+	levelText.setText('Level: ' + currentLevel);
+	highScoreText.setText('Best: ' + storage.highScore);
 	// Update multiplier color based on value
 	if (comboMultiplier >= 4) {
 		multiplierText.fill = 0xFF0000; // Red for 4x+
 	} else if (comboMultiplier >= 3) {
@@ -165,8 +274,10 @@
 		multiplierText.fill = 0xFFD700; // Gold for 2x
 	} else {
 		multiplierText.fill = 0xFFFFFF; // White for 1x
 	}
+	// Check achievements
+	checkAchievements();
 }
 function showFeedback(text, laneIndex) {
 	var assetName = 'feedback' + text.charAt(0).toUpperCase() + text.slice(1).toLowerCase();
 	var feedbackImage = game.addChild(LK.getAsset(assetName, {
@@ -245,10 +356,17 @@
 		}
 	});
 }
 function spawnTile() {
-	// 30% chance to spawn two tiles simultaneously
-	var spawnTwo = Math.random() < 0.3;
+	// 5% chance to spawn power tile (increases with level)
+	var powerChance = 0.05 + currentLevel * 0.01;
+	if (Math.random() < powerChance) {
+		spawnPowerTile();
+		return;
+	}
+	// Adjusted spawn chances based on level
+	var multiTileChance = 0.3 + currentLevel * 0.05; // More multi-tiles at higher levels
+	var spawnTwo = Math.random() < multiTileChance;
 	if (spawnTwo) {
 		// Spawn two tiles in different lanes
 		var laneIndex1 = Math.floor(Math.random() * 4);
 		var laneIndex2;
@@ -284,8 +402,101 @@
 		particles.push(particle);
 		game.addChild(particle);
 	}
 }
+function checkAchievements() {
+	var currentScore = LK.getScore();
+	// High Scorer achievement
+	if (currentScore >= 10000 && !achievements.highScorer.unlocked) {
+		unlockAchievement('highScorer');
+	}
+	// Perfectionist achievement
+	if (perfectStreak >= 50 && !achievements.perfectionist.unlocked) {
+		unlockAchievement('perfectionist');
+	}
+	// Combo Master achievement
+	if (comboCount >= 100 && !achievements.comboMaster.unlocked) {
+		unlockAchievement('comboMaster');
+	}
+	// Speed Demon achievement
+	if (currentLevel >= 5 && !achievements.speedDemon.unlocked) {
+		unlockAchievement('speedDemon');
+	}
+	// Update high score
+	if (currentScore > storage.highScore) {
+		storage.highScore = currentScore;
+	}
+}
+function unlockAchievement(achievementKey) {
+	achievements[achievementKey].unlocked = true;
+	if (!storage.achievements) storage.achievements = {};
+	storage.achievements[achievementKey] = true;
+	// Show achievement notification
+	showAchievementNotification(achievements[achievementKey]);
+	LK.effects.flashScreen(0xFFD700, 500);
+}
+function showAchievementNotification(achievement) {
+	var achievementText = new Text2('Achievement Unlocked!\n' + achievement.name, {
+		size: 60,
+		fill: 0xFFD700
+	});
+	achievementText.anchor.set(0.5, 0.5);
+	achievementText.x = 1024;
+	achievementText.y = 800;
+	game.addChild(achievementText);
+	tween(achievementText, {
+		alpha: 0,
+		y: achievementText.y - 100
+	}, {
+		duration: 3000,
+		onFinish: function onFinish() {
+			achievementText.destroy();
+		}
+	});
+}
+function spawnPowerTile() {
+	var powerTypes = ['double', 'slow', 'shield'];
+	var powerType = powerTypes[Math.floor(Math.random() * powerTypes.length)];
+	var laneIndex = Math.floor(Math.random() * 4);
+	var powerTile = new PowerTile(laneIndex, powerType);
+	powerTile.x = 256 + laneIndex * 512;
+	powerTile.y = -100;
+	powerTiles.push(powerTile);
+	game.addChild(powerTile);
+}
+function activatePowerUp(powerType) {
+	if (powerType === 'double') {
+		activePowerUps.doubleScore = 600; // 10 seconds at 60fps
+		showPowerUpNotification('Double Score!', 0xFFD700);
+	} else if (powerType === 'slow') {
+		activePowerUps.slowTime = 600;
+		showPowerUpNotification('Slow Time!', 0x00FFFF);
+	} else if (powerType === 'shield') {
+		activePowerUps.shield = 600;
+		showPowerUpNotification('Shield Active!', 0x00FF00);
+	}
+}
+function showPowerUpNotification(text, color) {
+	var powerText = new Text2(text, {
+		size: 80,
+		fill: color
+	});
+	powerText.anchor.set(0.5, 0.5);
+	powerText.x = 1024;
+	powerText.y = 1000;
+	game.addChild(powerText);
+	tween(powerText, {
+		alpha: 0,
+		scaleX: 1.5,
+		scaleY: 1.5,
+		y: powerText.y - 100
+	}, {
+		duration: 2000,
+		onFinish: function onFinish() {
+			powerText.destroy();
+		}
+	});
+}
 function getLaneFromX(x) {
 	if (x < 512) return 0;
 	if (x < 1024) return 1;
 	if (x < 1536) return 2;
@@ -331,8 +542,36 @@
 		easing: tween.easeOut
 	});
 	// Check for tile hits
 	var hitTile = false;
+	// Check power tiles first
+	for (var i = 0; i < powerTiles.length; i++) {
+		var powerTile = powerTiles[i];
+		if (powerTile.lane === laneIndex && !powerTile.missed && !powerTile.earlyPressed) {
+			var distance = Math.abs(powerTile.y - hitLineY);
+			if (distance <= 80 && !powerTile.hit) {
+				powerTile.hit = true;
+				activatePowerUp(powerTile.powerType);
+				createParticles(powerTile.x, powerTile.y, 12, 0xFFD700);
+				tween(powerTile, {
+					alpha: 0,
+					scaleX: 2,
+					scaleY: 2
+				}, {
+					duration: 300,
+					onFinish: function onFinish() {
+						if (!powerTile.destroyed) {
+							powerTile.destroyed = true;
+							powerTile.destroy();
+						}
+					}
+				});
+				hitTile = true;
+				break;
+			}
+		}
+	}
+	// Check regular tiles
 	for (var i = 0; i < tiles.length; i++) {
 		var tile = tiles[i];
 		if (tile.lane === laneIndex && !tile.missed && !tile.earlyPressed) {
 			var distance = Math.abs(tile.y - hitLineY);
@@ -342,8 +581,12 @@
 					tile.hit = true;
 					// Calculate combo multiplier
 					comboMultiplier = Math.min(4, Math.floor(comboCount / 5) + 1);
 					var baseScore = 10;
+					// Apply power-up bonuses
+					if (activePowerUps.doubleScore > 0) {
+						baseScore *= 2;
+					}
 					var scoreToAdd = baseScore * comboMultiplier;
 					// Check for perfect timing (within 20 pixels)
 					var perfectTiming = distance <= 20;
 					if (perfectTiming) {
@@ -437,13 +680,39 @@
 };
 // Start background music
 LK.playMusic('Music');
 game.update = function () {
+	// Update power-ups
+	for (var powerType in activePowerUps) {
+		if (activePowerUps[powerType] > 0) {
+			activePowerUps[powerType]--;
+		}
+	}
+	// Apply slow time effect
+	var currentGameSpeed = gameSpeed;
+	if (activePowerUps.slowTime > 0) {
+		currentGameSpeed *= 0.5;
+	}
 	// Spawn tiles
 	tileSpawnTimer++;
-	if (tileSpawnTimer >= tileSpawnInterval) {
+	var adjustedSpawnInterval = tileSpawnInterval;
+	if (activePowerUps.slowTime > 0) {
+		adjustedSpawnInterval *= 2;
+	}
+	if (tileSpawnTimer >= adjustedSpawnInterval) {
 		spawnTile();
 		tileSpawnTimer = 0;
+		// Level progression system
+		var targetScore = currentLevel * 1000;
+		if (LK.getScore() >= targetScore) {
+			currentLevel++;
+			storage.currentLevel = currentLevel;
+			if (currentLevel > storage.unlockedLevels) {
+				storage.unlockedLevels = currentLevel;
+			}
+			showPowerUpNotification('Level Up! Level ' + currentLevel, 0xFF00FF);
+			LK.effects.flashScreen(0xFF00FF, 800);
+		}
 		// Increase difficulty over time
 		if (LK.ticks % 300 === 0) {
 			gameSpeed += 0.15;
 			tileSpawnInterval = Math.max(25, tileSpawnInterval - 1);
@@ -461,14 +730,37 @@
 			tile.destroy();
 			tiles.splice(i, 1);
 		}
 	}
+	// Clean up power tiles
+	for (var i = powerTiles.length - 1; i >= 0; i--) {
+		var powerTile = powerTiles[i];
+		if (!powerTile || powerTile.destroyed) {
+			powerTiles.splice(i, 1);
+			continue;
+		}
+		if (powerTile.y > 2800 || powerTile.hit || powerTile.missed && powerTile.y > hitLineY + 200) {
+			powerTile.destroyed = true;
+			powerTile.destroy();
+			powerTiles.splice(i, 1);
+		}
+	}
 	// Update tile speeds based on game speed
+	var effectiveSpeed = gameSpeed;
+	if (activePowerUps.slowTime > 0) {
+		effectiveSpeed *= 0.5;
+	}
 	for (var i = 0; i < tiles.length; i++) {
 		if (tiles[i] && !tiles[i].destroyed) {
-			tiles[i].speed = 12 * gameSpeed;
+			tiles[i].speed = 12 * effectiveSpeed;
 		}
 	}
+	// Update power tile speeds
+	for (var i = 0; i < powerTiles.length; i++) {
+		if (powerTiles[i] && !powerTiles[i].destroyed) {
+			powerTiles[i].speed = 12 * effectiveSpeed;
+		}
+	}
 	// Update particles
 	for (var i = particles.length - 1; i >= 0; i--) {
 		var particle = particles[i];
 		if (!particle || particle.life <= 0) {
@@ -482,5 +774,20 @@
 		comboMultiplier = Math.min(4, Math.floor(comboCount / 5) + 1);
 		updateScoreDisplay();
 		lastHitTime = LK.ticks; // Reset timer to prevent rapid decay
 	}
+};
+// Override game over to save progress and unlock achievements
+var originalShowGameOver = LK.showGameOver;
+LK.showGameOver = function () {
+	// Save game stats
+	storage.totalGamesPlayed++;
+	if (LK.getScore() > storage.highScore) {
+		storage.highScore = LK.getScore();
+	}
+	// Unlock first win achievement if it's the first game
+	if (storage.totalGamesPlayed === 1 && !achievements.firstWin.unlocked) {
+		unlockAchievement('firstWin');
+	}
+	// Call original game over
+	originalShowGameOver();
 };
\ No newline at end of file