/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	savedLoops: []
});

/**** 
* Classes
****/ 
var BeatButton = Container.expand(function (id, label) {
	var self = Container.call(this);
	self.id = id;
	self.isActive = false;
	var buttonBg = self.attachAsset('beatButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var buttonLabel = new Text2(label, {
		size: 40,
		fill: 0xFFFFFF
	});
	buttonLabel.anchor.set(0.5, 0.5);
	self.addChild(buttonLabel);
	self.activate = function () {
		self.isActive = true;
		self.removeChild(buttonBg);
		buttonBg = self.attachAsset('beatButtonActive', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.addChildAt(buttonBg, 0);
	};
	self.deactivate = function () {
		self.isActive = false;
		self.removeChild(buttonBg);
		buttonBg = self.attachAsset('beatButton', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.addChildAt(buttonBg, 0);
	};
	self.down = function (x, y, obj) {
		if (!self.isActive) {
			// Deactivate all other beat buttons
			for (var i = 0; i < beatButtons.length; i++) {
				beatButtons[i].deactivate();
			}
			self.activate();
			selectedBeat = self.id;
			updateLoop();
		}
	};
	return self;
});
var EffectButton = Container.expand(function (id, label) {
	var self = Container.call(this);
	self.id = id;
	self.isActive = false;
	var buttonBg = self.attachAsset('effectButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var buttonLabel = new Text2(label, {
		size: 35,
		fill: 0xFFFFFF
	});
	buttonLabel.anchor.set(0.5, 0.5);
	self.addChild(buttonLabel);
	self.activate = function () {
		self.isActive = true;
		self.removeChild(buttonBg);
		buttonBg = self.attachAsset('effectButtonActive', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.addChildAt(buttonBg, 0);
	};
	self.deactivate = function () {
		self.isActive = false;
		self.removeChild(buttonBg);
		buttonBg = self.attachAsset('effectButton', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.addChildAt(buttonBg, 0);
	};
	self.down = function (x, y, obj) {
		if (self.isActive) {
			self.deactivate();
			selectedEffect = null;
		} else {
			// Deactivate all other effect buttons
			for (var i = 0; i < effectButtons.length; i++) {
				effectButtons[i].deactivate();
			}
			self.activate();
			selectedEffect = self.id;
		}
		updateLoop();
	};
	return self;
});
var MelodyButton = Container.expand(function (id, label) {
	var self = Container.call(this);
	self.id = id;
	self.isActive = false;
	var buttonBg = self.attachAsset('melodyButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var buttonLabel = new Text2(label, {
		size: 30,
		fill: 0xFFFFFF
	});
	buttonLabel.anchor.set(0.5, 0.5);
	self.addChild(buttonLabel);
	self.activate = function () {
		self.isActive = true;
		self.removeChild(buttonBg);
		buttonBg = self.attachAsset('melodyButtonActive', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.addChildAt(buttonBg, 0);
	};
	self.deactivate = function () {
		self.isActive = false;
		self.removeChild(buttonBg);
		buttonBg = self.attachAsset('melodyButton', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.addChildAt(buttonBg, 0);
	};
	self.down = function (x, y, obj) {
		if (self.isActive) {
			self.deactivate();
			var index = selectedMelodies.indexOf(self.id);
			if (index > -1) {
				selectedMelodies.splice(index, 1);
			}
		} else {
			self.activate();
			selectedMelodies.push(self.id);
		}
		updateLoop();
	};
	return self;
});
var PlayStopButton = Container.expand(function () {
	var self = Container.call(this);
	self.isPlaying = false;
	var buttonBg = self.attachAsset('playButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var playIcon = new Text2('▶', {
		size: 80,
		fill: 0xFFFFFF
	});
	playIcon.anchor.set(0.5, 0.5);
	self.addChild(playIcon);
	self.setPlaying = function (playing) {
		self.isPlaying = playing;
		self.removeChild(buttonBg);
		if (playing) {
			buttonBg = self.attachAsset('stopButton', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			playIcon.setText('⏹');
		} else {
			buttonBg = self.attachAsset('playButton', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			playIcon.setText('▶');
		}
		self.addChildAt(buttonBg, 0);
	};
	self.down = function (x, y, obj) {
		if (self.isPlaying) {
			stopLoop();
		} else {
			startLoop();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c3e50
});

/**** 
* Game Code
****/ 
var selectedBeat = null;
var selectedEffect = null;
var selectedMelodies = [];
var isLoopPlaying = false;
var loopTimer = null;
var savedLoops = [];
if (storage.savedLoops && Array.isArray(storage.savedLoops)) {
	savedLoops = storage.savedLoops;
}
var beatButtons = [];
var effectButtons = [];
var melodyButtons = [];
var playStopButton;
var saveButton;
// Create title
var titleText = new Text2('Loop Maker', {
	size: 80,
	fill: 0xECF0F1
});
titleText.anchor.set(0.5, 0);
titleText.x = 1024;
titleText.y = 150;
game.addChild(titleText);
// Create beat section
var beatSectionTitle = new Text2('Beats', {
	size: 50,
	fill: 0xECF0F1
});
beatSectionTitle.anchor.set(0.5, 0);
beatSectionTitle.x = 1024;
beatSectionTitle.y = 350;
game.addChild(beatSectionTitle);
var beatLabels = ['Kick Drum', 'Snare Beat', 'Hi-Hat', 'Bass Drop', 'Electronic'];
for (var i = 0; i < 5; i++) {
	var beatBtn = new BeatButton(i + 1, beatLabels[i]);
	beatBtn.x = 200 + i % 3 * 400 + (i >= 3 ? 200 : 0);
	beatBtn.y = 430 + Math.floor(i / 3) * 140;
	beatButtons.push(beatBtn);
	game.addChild(beatBtn);
}
// Create effect section
var effectSectionTitle = new Text2('Effects', {
	size: 50,
	fill: 0xECF0F1
});
effectSectionTitle.anchor.set(0.5, 0);
effectSectionTitle.x = 1024;
effectSectionTitle.y = 750;
game.addChild(effectSectionTitle);
var effectLabels = ['Reverb', 'Distortion', 'Filter'];
for (var i = 0; i < 3; i++) {
	var effectBtn = new EffectButton(i + 1, effectLabels[i]);
	effectBtn.x = 400 + i * 350;
	effectBtn.y = 830;
	effectButtons.push(effectBtn);
	game.addChild(effectBtn);
}
// Create melody section
var melodySectionTitle = new Text2('Melodies', {
	size: 50,
	fill: 0xECF0F1
});
melodySectionTitle.anchor.set(0.5, 0);
melodySectionTitle.x = 1024;
melodySectionTitle.y = 970;
game.addChild(melodySectionTitle);
var melodyLabels = ['Piano', 'Synth', 'Guitar', 'Electric Guitar'];
for (var i = 0; i < 4; i++) {
	var melodyBtn = new MelodyButton(i + 1, melodyLabels[i]);
	melodyBtn.x = 300 + i * 350;
	melodyBtn.y = 1050;
	melodyButtons.push(melodyBtn);
	game.addChild(melodyBtn);
}
// Create play/stop button
playStopButton = new PlayStopButton();
playStopButton.x = 1024;
playStopButton.y = 1300;
game.addChild(playStopButton);
// Create save button
saveButton = game.addChild(LK.getAsset('saveButton', {
	anchorX: 0.5,
	anchorY: 0.5
}));
saveButton.x = 1024;
saveButton.y = 1550;
var saveButtonText = new Text2('Save Loop', {
	size: 35,
	fill: 0xFFFFFF
});
saveButtonText.anchor.set(0.5, 0.5);
saveButton.addChild(saveButtonText);
saveButton.down = function (x, y, obj) {
	if (selectedBeat !== null) {
		var loopData = {
			beat: selectedBeat,
			effect: selectedEffect,
			melodies: selectedMelodies.slice()
		};
		savedLoops.push(loopData);
		storage.savedLoops = savedLoops;
		// Visual feedback
		tween(saveButton, {
			scaleX: 1.1,
			scaleY: 1.1
		}, {
			duration: 100,
			onFinish: function onFinish() {
				tween(saveButton, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 100
				});
			}
		});
		LK.effects.flashObject(saveButton, 0x2ecc71, 500);
	}
};
// Create saved loops display
var savedLoopsText = new Text2('Saved: ' + savedLoops.length, {
	size: 40,
	fill: 0xBDC3C7
});
savedLoopsText.anchor.set(0.5, 0);
savedLoopsText.x = 1024;
savedLoopsText.y = 1650;
game.addChild(savedLoopsText);
function updateLoop() {
	if (isLoopPlaying) {
		stopLoop();
		startLoop();
	}
	savedLoopsText.setText('Saved: ' + savedLoops.length);
}
function startLoop() {
	if (selectedBeat === null) return;
	isLoopPlaying = true;
	playStopButton.setPlaying(true);
	playLoop();
	loopTimer = LK.setInterval(playLoop, 2000); // 2 second loop
}
function stopLoop() {
	isLoopPlaying = false;
	playStopButton.setPlaying(false);
	if (loopTimer) {
		LK.clearInterval(loopTimer);
		loopTimer = null;
	}
}
function playLoop() {
	if (selectedBeat !== null) {
		LK.getSound('beat' + selectedBeat).play();
	}
	LK.setTimeout(function () {
		if (selectedEffect !== null) {
			LK.getSound('effect' + selectedEffect).play();
		}
	}, 200);
	LK.setTimeout(function () {
		for (var i = 0; i < selectedMelodies.length; i++) {
			LK.getSound('melody' + selectedMelodies[i]).play();
		}
	}, 400);
}
// Auto-select first beat for better UX
beatButtons[0].down(0, 0, {});
game.update = function () {
	// Game loop runs here
};

===================================================================
--- original.js
+++ change.js
@@ -265,9 +265,9 @@
 melodySectionTitle.anchor.set(0.5, 0);
 melodySectionTitle.x = 1024;
 melodySectionTitle.y = 970;
 game.addChild(melodySectionTitle);
-var melodyLabels = ['Piano', 'Synth', 'Electric Guitar', 'Electric Guitar'];
+var melodyLabels = ['Piano', 'Synth', 'Guitar', 'Electric Guitar'];
 for (var i = 0; i < 4; i++) {
 	var melodyBtn = new MelodyButton(i + 1, melodyLabels[i]);
 	melodyBtn.x = 300 + i * 350;
 	melodyBtn.y = 1050;