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

/**** 
* Classes
****/ 
var Note = Container.expand(function (trackIndex, isPowerNote) {
	var self = Container.call(this);
	self.trackIndex = trackIndex;
	self.isPowerNote = isPowerNote || false;
	self.speed = 4;
	self.hasBeenTapped = false;
	self.lastY = 0;
	var noteGraphics = self.attachAsset(self.isPowerNote ? 'powerNote' : 'note', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	if (self.isPowerNote) {
		noteGraphics.tint = 0xFFD93D;
		self.scale.set(1.2);
	}
	self.update = function () {
		if (self.lastY === undefined) self.lastY = self.y;
		if (self.lastInTargetZone === undefined) self.lastInTargetZone = false;
		// Check if note just entered target zone
		var targetY = 1600; // unifiedTargetZone.y
		var inTargetZone = Math.abs(self.y - targetY) <= 100; // Within target zone range
		if (!self.lastInTargetZone && inTargetZone && !self.hasBeenTapped) {
			// Note just entered target zone - trigger explosion with corresponding bottom object
			self.triggerExplosion();
		}
		self.lastY = self.y;
		self.lastInTargetZone = inTargetZone;
		self.y += self.speed;
	};
	self.checkTiming = function () {
		var targetY = unifiedTargetZone.y;
		var distance = Math.abs(self.y - targetY);
		if (distance <= 30) {
			return 'perfect';
		} else if (distance <= 60) {
			return 'good';
		}
		return 'miss';
	};
	self.triggerExplosion = function () {
		if (self.hasBeenTapped) return;
		var timing = self.checkTiming();
		if (timing !== 'miss') {
			self.hasBeenTapped = true;
			var points = 0;
			if (timing === 'perfect') {
				points = self.isPowerNote ? 200 : 100;
				LK.getSound('perfect').play();
				showPerfectEffect(self.x, self.y);
			} else if (timing === 'good') {
				points = self.isPowerNote ? 100 : 50;
				LK.getSound('tap').play();
			}
			updateScore(points);
			updateCombo(true);
			unifiedTargetZone.flash();
			// Trigger explosion animation on corresponding bottom object
			var bottomObjects = [leftObject, centerObject, rightObject];
			if (bottomObjects[self.trackIndex]) {
				var targetObject = bottomObjects[self.trackIndex];
				// Flash the bottom object
				var originalAlpha = targetObject.alpha;
				tween(targetObject, {
					alpha: 1.0
				}, {
					duration: 100,
					onFinish: function onFinish() {
						tween(targetObject, {
							alpha: originalAlpha
						}, {
							duration: 200
						});
					}
				});
				// Scale pulse effect
				var originalScale = targetObject.scaleX;
				tween(targetObject, {
					scaleX: originalScale * 1.1,
					scaleY: originalScale * 1.1
				}, {
					duration: 150,
					onFinish: function onFinish() {
						tween(targetObject, {
							scaleX: originalScale,
							scaleY: originalScale
						}, {
							duration: 150
						});
					}
				});
			}
			// Explode the note
			tween(self, {
				scaleX: 3,
				scaleY: 3,
				alpha: 0
			}, {
				duration: 200,
				onFinish: function onFinish() {
					self.destroy();
					for (var j = 0; j < notes.length; j++) {
						if (notes[j] === self) {
							notes.splice(j, 1);
							break;
						}
					}
				}
			});
		}
	};
	return self;
});
var TargetZone = Container.expand(function (trackIndex) {
	var self = Container.call(this);
	self.trackIndex = trackIndex;
	var zoneGraphics = self.attachAsset('targetZone', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	zoneGraphics.alpha = 0.9;
	self.flash = function () {
		zoneGraphics.alpha = 1.0;
		tween(zoneGraphics, {
			alpha: 0.9
		}, {
			duration: 200
		});
	};
	return self;
});
var Track = Container.expand(function (trackIndex) {
	var self = Container.call(this);
	self.trackIndex = trackIndex;
	var trackGraphics = self.attachAsset('track', {
		anchorX: 0.5,
		anchorY: 0
	});
	trackGraphics.alpha = 0.1;
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
// Game variables
var notes = [];
var tracks = [];
var targetZones = [];
var numTracks = 3;
var trackWidth = 300;
var gameWidth = 2048;
var score = 0;
var combo = 0;
var maxCombo = 0;
var missedNotes = 0;
var maxMissedNotes = 5;
var noteSpawnTimer = 0;
var noteSpawnInterval = 45;
var gameSpeed = 1;
var difficultyTimer = 0;
// Bottom objects for explosion effects
var leftObject, centerObject, rightObject;
// UI elements
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var comboTxt = new Text2('Combo: 0', {
	size: 50,
	fill: 0xFFD93D
});
comboTxt.anchor.set(0, 0);
comboTxt.x = 150;
comboTxt.y = 150;
LK.gui.top.addChild(comboTxt);
var missedTxt = new Text2('Missed: 0/5', {
	size: 40,
	fill: 0xFF6B6B
});
missedTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(missedTxt);
// Add background image
var background = LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
});
background.x = 0;
background.y = 0;
background.tint = 0x000000;
game.addChild(background);
// Initialize tracks and unified target zone
var startX = (gameWidth - numTracks * trackWidth) / 2 + trackWidth / 2;
for (var i = 0; i < numTracks; i++) {
	var track = new Track(i);
	track.x = startX + i * trackWidth;
	track.y = 0;
	tracks.push(track);
	game.addChild(track);
}
// Create single unified target zone covering all tracks
var unifiedTargetZone = new TargetZone(0);
unifiedTargetZone.x = gameWidth / 2; // Center of screen
unifiedTargetZone.y = 1600;
// Scale the target zone to cover all tracks
unifiedTargetZone.scale.x = numTracks * trackWidth / 350; // Scale to cover all track widths
targetZones.push(unifiedTargetZone);
// Add unified background covering entire play area
var unifiedBg = LK.getAsset('unifiedBackground', {
	anchorX: 0.5,
	anchorY: 0
});
unifiedBg.x = gameWidth / 2; // Center horizontally
unifiedBg.y = 0; // Start from top of screen
unifiedBg.width = gameWidth + 800; // Extend much further beyond screen width on both sides
unifiedBg.height = 3500; // Extend further downward beyond screen height
unifiedBg.alpha = 0.8; // Slightly transparent to show game elements clearly
game.addChild(unifiedBg);
// Re-add strip lines and unified target zone to foreground
for (var i = 0; i < numTracks; i++) {
	// Add strip line for each track (moved to foreground)
	var stripLine = LK.getAsset('stripLine', {
		anchorX: 0.5,
		anchorY: 0
	});
	stripLine.x = startX + i * trackWidth;
	stripLine.y = 0;
	stripLine.alpha = 0.8;
	game.addChild(stripLine);
}
// Add unified target zone to foreground
game.addChild(unifiedTargetZone);
// Create rounded border around unified target zone
var borderThickness = 8;
var targetZoneWidth = 350 * unifiedTargetZone.scale.x;
var targetZoneHeight = 200;
// Top border
var topBorder = LK.getAsset('stripLine', {
	anchorX: 0.5,
	anchorY: 0.5
});
topBorder.width = targetZoneWidth - borderThickness;
topBorder.height = borderThickness;
topBorder.x = unifiedTargetZone.x;
topBorder.y = unifiedTargetZone.y - targetZoneHeight / 2 - borderThickness / 2;
topBorder.alpha = 1.0;
game.addChild(topBorder);
// Bottom border
var bottomBorder = LK.getAsset('stripLine', {
	anchorX: 0.5,
	anchorY: 0.5
});
bottomBorder.width = targetZoneWidth - borderThickness;
bottomBorder.height = borderThickness;
bottomBorder.x = unifiedTargetZone.x;
bottomBorder.y = unifiedTargetZone.y + targetZoneHeight / 2 + borderThickness / 2;
bottomBorder.alpha = 1.0;
game.addChild(bottomBorder);
// Left border
var leftBorder = LK.getAsset('stripLine', {
	anchorX: 0.5,
	anchorY: 0.5
});
leftBorder.width = borderThickness;
leftBorder.height = targetZoneHeight - borderThickness;
leftBorder.x = unifiedTargetZone.x - targetZoneWidth / 2 - borderThickness / 2;
leftBorder.y = unifiedTargetZone.y;
leftBorder.alpha = 1.0;
game.addChild(leftBorder);
// Right border
var rightBorder = LK.getAsset('stripLine', {
	anchorX: 0.5,
	anchorY: 0.5
});
rightBorder.width = borderThickness;
rightBorder.height = targetZoneHeight - borderThickness;
rightBorder.x = unifiedTargetZone.x + targetZoneWidth / 2 + borderThickness / 2;
rightBorder.y = unifiedTargetZone.y;
rightBorder.alpha = 1.0;
game.addChild(rightBorder);
// Add rounded corners with ellipses
// Top-left corner
var topLeftCorner = LK.getAsset('cornerEllipse', {
	anchorX: 0.5,
	anchorY: 0.5
});
topLeftCorner.x = unifiedTargetZone.x - targetZoneWidth / 2;
topLeftCorner.y = unifiedTargetZone.y - targetZoneHeight / 2;
topLeftCorner.alpha = 1.0;
game.addChild(topLeftCorner);
// Top-right corner
var topRightCorner = LK.getAsset('cornerEllipse', {
	anchorX: 0.5,
	anchorY: 0.5
});
topRightCorner.x = unifiedTargetZone.x + targetZoneWidth / 2;
topRightCorner.y = unifiedTargetZone.y - targetZoneHeight / 2;
topRightCorner.alpha = 1.0;
game.addChild(topRightCorner);
// Bottom-left corner
var bottomLeftCorner = LK.getAsset('cornerEllipse', {
	anchorX: 0.5,
	anchorY: 0.5
});
bottomLeftCorner.x = unifiedTargetZone.x - targetZoneWidth / 2;
bottomLeftCorner.y = unifiedTargetZone.y + targetZoneHeight / 2;
bottomLeftCorner.alpha = 1.0;
game.addChild(bottomLeftCorner);
// Bottom-right corner
var bottomRightCorner = LK.getAsset('cornerEllipse', {
	anchorX: 0.5,
	anchorY: 0.5
});
bottomRightCorner.x = unifiedTargetZone.x + targetZoneWidth / 2;
bottomRightCorner.y = unifiedTargetZone.y + targetZoneHeight / 2;
bottomRightCorner.alpha = 1.0;
game.addChild(bottomRightCorner);
// Helper functions
function spawnNote() {
	var trackIndex = Math.floor(Math.random() * numTracks);
	var isPowerNote = Math.random() < 0.1;
	var note = new Note(trackIndex, isPowerNote);
	note.x = startX + trackIndex * trackWidth;
	note.y = -50;
	note.speed = 4 * gameSpeed;
	notes.push(note);
	game.addChild(note);
}
function updateScore(points) {
	score += points * Math.max(1, Math.floor(combo / 5));
	scoreTxt.setText('Score: ' + score);
	LK.setScore(score);
}
function updateCombo(increase) {
	if (increase) {
		combo++;
		maxCombo = Math.max(maxCombo, combo);
	} else {
		combo = 0;
	}
	comboTxt.setText('Combo: ' + combo);
}
function updateMissed() {
	missedNotes++;
	missedTxt.setText('Missed: ' + missedNotes + '/' + maxMissedNotes);
	// Player is now immortal - no game over on missed notes
}
function showPerfectEffect(x, y) {
	var effect = LK.getAsset('perfectEffect', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	effect.x = x;
	effect.y = y;
	effect.alpha = 0.8;
	game.addChild(effect);
	tween(effect, {
		alpha: 0,
		scaleX: 2,
		scaleY: 2
	}, {
		duration: 300,
		onFinish: function onFinish() {
			effect.destroy();
		}
	});
}
function checkNoteInTrack(trackIndex) {
	for (var i = 0; i < notes.length; i++) {
		var note = notes[i];
		if (note.trackIndex === trackIndex && !note.hasBeenTapped) {
			var timing = note.checkTiming();
			if (timing !== 'miss') {
				note.hasBeenTapped = true;
				var points = 0;
				if (timing === 'perfect') {
					points = note.isPowerNote ? 200 : 100;
					LK.getSound('perfect').play();
					showPerfectEffect(note.x, note.y);
				} else if (timing === 'good') {
					points = note.isPowerNote ? 100 : 50;
					LK.getSound('tap').play();
				}
				updateScore(points);
				updateCombo(true);
				unifiedTargetZone.flash();
				// Add shake effect to strip line
				var stripLine = game.children.find(function (child) {
					return child.x === startX + trackIndex * trackWidth && child.width === 8;
				});
				if (stripLine) {
					var originalX = stripLine.x;
					tween(stripLine, {
						x: originalX + 50
					}, {
						duration: 25,
						onFinish: function onFinish() {
							tween(stripLine, {
								x: originalX - 50
							}, {
								duration: 25,
								onFinish: function onFinish() {
									tween(stripLine, {
										x: originalX + 35
									}, {
										duration: 25,
										onFinish: function onFinish() {
											tween(stripLine, {
												x: originalX - 35
											}, {
												duration: 25,
												onFinish: function onFinish() {
													tween(stripLine, {
														x: originalX + 20
													}, {
														duration: 20,
														onFinish: function onFinish() {
															tween(stripLine, {
																x: originalX - 20
															}, {
																duration: 20,
																onFinish: function onFinish() {
																	tween(stripLine, {
																		x: originalX + 10
																	}, {
																		duration: 15,
																		onFinish: function onFinish() {
																			tween(stripLine, {
																				x: originalX
																			}, {
																				duration: 15
																			});
																		}
																	});
																}
															});
														}
													});
												}
											});
										}
									});
								}
							});
						}
					});
				}
				note.destroy();
				notes.splice(i, 1);
				return true;
			}
		}
	}
	return false;
}
// Touch handlers
game.down = function (x, y, obj) {
	for (var i = 0; i < numTracks; i++) {
		var trackX = startX + i * trackWidth;
		if (x >= trackX - trackWidth / 2 && x <= trackX + trackWidth / 2) {
			if (!checkNoteInTrack(i)) {
				updateCombo(false);
				LK.getSound('miss').play();
			}
			break;
		}
	}
};
// Main game loop
game.update = function () {
	// Spawn notes
	noteSpawnTimer++;
	if (noteSpawnTimer >= noteSpawnInterval) {
		spawnNote();
		noteSpawnTimer = 0;
	}
	// Update difficulty
	difficultyTimer++;
	if (difficultyTimer >= 1800) {
		// Every 30 seconds
		gameSpeed += 0.2;
		noteSpawnInterval = Math.max(20, noteSpawnInterval - 2);
		difficultyTimer = 0;
	}
	// Update notes
	for (var i = notes.length - 1; i >= 0; i--) {
		var note = notes[i];
		// Check if note missed target zone
		if (!note.hasBeenTapped && note.lastY <= 1700 && note.y > 1700) {
			updateCombo(false);
			updateMissed();
			note.destroy();
			notes.splice(i, 1);
			continue;
		}
		// Remove notes that are off screen
		if (note.y > 2800) {
			note.destroy();
			notes.splice(i, 1);
		}
	}
	// Win condition
	if (score >= 10000) {
		LK.showYouWin();
	}
};
// Add 3 objects at bottom of target zone (left, center, right)
var targetBottomY = unifiedTargetZone.y + targetZoneHeight / 2 + 600; // Position even further down
var objectSpacing = targetZoneWidth / 1.5; // Further increase spacing between objects
// Left object
leftObject = LK.getAsset('cornerEllipse', {
	anchorX: 0.5,
	anchorY: 0.5
});
leftObject.x = unifiedTargetZone.x - objectSpacing;
leftObject.y = targetBottomY;
leftObject.tint = 0xff6b6b; // Red color for distinction
leftObject.alpha = 0.8;
game.addChild(leftObject);
// Center object
centerObject = LK.getAsset('cornerEllipse', {
	anchorX: 0.5,
	anchorY: 0.5
});
centerObject.x = unifiedTargetZone.x;
centerObject.y = targetBottomY;
centerObject.tint = 0x00ff00; // Green color for distinction
centerObject.alpha = 0.8;
game.addChild(centerObject);
// Right object
rightObject = LK.getAsset('cornerEllipse', {
	anchorX: 0.5,
	anchorY: 0.5
});
rightObject.x = unifiedTargetZone.x + objectSpacing;
rightObject.y = targetBottomY;
rightObject.tint = 0x4169e1; // Blue color for distinction
rightObject.alpha = 0.8;
game.addChild(rightObject);
// Scale all 3 objects to 30x using tween
tween(leftObject, {
	scaleX: 30,
	scaleY: 30
}, {
	duration: 1000,
	easing: tween.easeOut,
	onFinish: function onFinish() {
		// Move to topmost layer after scaling
		game.removeChild(leftObject);
		game.addChild(leftObject);
	}
});
tween(centerObject, {
	scaleX: 30,
	scaleY: 30
}, {
	duration: 1000,
	easing: tween.easeOut,
	onFinish: function onFinish() {
		// Move to topmost layer after scaling
		game.removeChild(centerObject);
		game.addChild(centerObject);
	}
});
tween(rightObject, {
	scaleX: 30,
	scaleY: 30
}, {
	duration: 1000,
	easing: tween.easeOut,
	onFinish: function onFinish() {
		// Move to topmost layer after scaling
		game.removeChild(rightObject);
		game.addChild(rightObject);
	}
});
// Add touch handlers to the 3 bottom objects
leftObject.down = function (x, y, obj) {
	// Check for notes in left track (track 0) within target zone
	for (var i = 0; i < notes.length; i++) {
		var note = notes[i];
		if (note.trackIndex === 0 && !note.hasBeenTapped) {
			var timing = note.checkTiming();
			if (timing !== 'miss') {
				// Explode the note
				note.hasBeenTapped = true;
				var points = 0;
				if (timing === 'perfect') {
					points = note.isPowerNote ? 200 : 100;
					LK.getSound('perfect').play();
					showPerfectEffect(note.x, note.y);
				} else if (timing === 'good') {
					points = note.isPowerNote ? 100 : 50;
					LK.getSound('tap').play();
				}
				updateScore(points);
				updateCombo(true);
				unifiedTargetZone.flash();
				// Scale animation for explosion effect
				tween(note, {
					scaleX: 3,
					scaleY: 3,
					alpha: 0
				}, {
					duration: 200,
					onFinish: function onFinish() {
						note.destroy();
						for (var j = 0; j < notes.length; j++) {
							if (notes[j] === note) {
								notes.splice(j, 1);
								break;
							}
						}
					}
				});
				break;
			}
		}
	}
};
centerObject.down = function (x, y, obj) {
	// Check for notes in center track (track 1) within target zone
	for (var i = 0; i < notes.length; i++) {
		var note = notes[i];
		if (note.trackIndex === 1 && !note.hasBeenTapped) {
			var timing = note.checkTiming();
			if (timing !== 'miss') {
				// Explode the note
				note.hasBeenTapped = true;
				var points = 0;
				if (timing === 'perfect') {
					points = note.isPowerNote ? 200 : 100;
					LK.getSound('perfect').play();
					showPerfectEffect(note.x, note.y);
				} else if (timing === 'good') {
					points = note.isPowerNote ? 100 : 50;
					LK.getSound('tap').play();
				}
				updateScore(points);
				updateCombo(true);
				unifiedTargetZone.flash();
				// Scale animation for explosion effect
				tween(note, {
					scaleX: 3,
					scaleY: 3,
					alpha: 0
				}, {
					duration: 200,
					onFinish: function onFinish() {
						note.destroy();
						for (var j = 0; j < notes.length; j++) {
							if (notes[j] === note) {
								notes.splice(j, 1);
								break;
							}
						}
					}
				});
				break;
			}
		}
	}
};
rightObject.down = function (x, y, obj) {
	// Check for notes in right track (track 2) within target zone
	for (var i = 0; i < notes.length; i++) {
		var note = notes[i];
		if (note.trackIndex === 2 && !note.hasBeenTapped) {
			var timing = note.checkTiming();
			if (timing !== 'miss') {
				// Explode the note
				note.hasBeenTapped = true;
				var points = 0;
				if (timing === 'perfect') {
					points = note.isPowerNote ? 200 : 100;
					LK.getSound('perfect').play();
					showPerfectEffect(note.x, note.y);
				} else if (timing === 'good') {
					points = note.isPowerNote ? 100 : 50;
					LK.getSound('tap').play();
				}
				updateScore(points);
				updateCombo(true);
				unifiedTargetZone.flash();
				// Scale animation for explosion effect
				tween(note, {
					scaleX: 3,
					scaleY: 3,
					alpha: 0
				}, {
					duration: 200,
					onFinish: function onFinish() {
						note.destroy();
						for (var j = 0; j < notes.length; j++) {
							if (notes[j] === note) {
								notes.splice(j, 1);
								break;
							}
						}
					}
				});
				break;
			}
		}
	}
};
// Start background music
LK.playMusic('bgmusic');
;
;

===================================================================
--- original.js
+++ change.js
@@ -9,9 +9,9 @@
 var Note = Container.expand(function (trackIndex, isPowerNote) {
 	var self = Container.call(this);
 	self.trackIndex = trackIndex;
 	self.isPowerNote = isPowerNote || false;
-	self.speed = 8;
+	self.speed = 4;
 	self.hasBeenTapped = false;
 	self.lastY = 0;
 	var noteGraphics = self.attachAsset(self.isPowerNote ? 'powerNote' : 'note', {
 		anchorX: 0.5,
@@ -337,9 +337,9 @@
 	var isPowerNote = Math.random() < 0.1;
 	var note = new Note(trackIndex, isPowerNote);
 	note.x = startX + trackIndex * trackWidth;
 	note.y = -50;
-	note.speed = 8 * gameSpeed;
+	note.speed = 4 * gameSpeed;
 	notes.push(note);
 	game.addChild(note);
 }
 function updateScore(points) {