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

/**** 
* Classes
****/ 
/***********************************************************************************/ 
/******************************* UTILITY FUNCTIONS *********************************/ 
/***********************************************************************************/ 
var BackgroundManager = Container.expand(function () {
	var self = Container.call(this);
	// Create three background instances for smoother tunnel effect
	self.bg0 = self.attachAsset('background01', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 2.4,
		scaleY: 2.4,
		alpha: 1
	});
	self.bg1 = self.attachAsset('background01', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 1.1,
		scaleY: 1.1,
		alpha: 1
	});
	self.bg2 = self.attachAsset('background01', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 0.5,
		scaleY: 0.5,
		alpha: 1
	});
	self.bg3 = self.attachAsset('background01', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 0.22,
		scaleY: 0.22,
		alpha: 1
	});
	self.bg4 = self.attachAsset('background01', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 0.11,
		scaleY: 0.11,
		alpha: 1
	});
	self.tore0 = self.attachAsset('tore', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 1.2,
		scaleY: 1.2,
		alpha: 0
	});
	self.tore1 = self.attachAsset('tore', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 0.6,
		scaleY: 0.6,
		alpha: 0
	});
	self.tore2 = self.attachAsset('tore', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 0.26,
		scaleY: 0.26,
		alpha: 0
	});
	self.tore3 = self.attachAsset('tore', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 0.12,
		scaleY: 0.12,
		alpha: 0
	});
	// Apply different tints in debug mode
	if (isDebug) {
		self.bg1.tint = 0xFF0000; // Red tint for first background
		self.tore1.tint = 0x00FF00; // Green tint for first tore
		self.bg2.tint = 0x00FFFF; // Cyan tint for second background
		self.tore2.tint = 0xFF00FF; // Magenta tint for second tore
		self.bg3.tint = 0xfff200; // Yellow tint for third background
	}
	// Animation properties
	self.bgAnimationSpeed = globalSpeed / 1000; //0.002;
	self.bgAnimationAcceleration = 2;
	// Add tore assets between backgrounds for animation
	self.backgrounds = [self.bg0, self.tore0, self.bg1, self.tore1, self.bg2, self.tore2, self.bg3, self.tore3, self.bg4];
	//self.backgrounds = [self.bg0, self.bg1, self.bg2, self.bg3];
	// Define initial scale for each background/torus (tore: 0.26, bg: 0.22)
	//self.bgInitialScales = [0.22, 0.22, 0.22, 0.22, 0.22];
	//self.bgInitialScales = [0, 0, 0, 0, 0];
	//self.bgInitialScales = [0, 0, 0, 0, 0, 0, 0, 0, 0];
	// Animation state: single startTime for all backgrounds/torus
	self.bgAnimStartTime = Date.now();
	// Update method - handle background/torus scale animation
	self.update = function () {
		// Don't update if song hasn't started
		if (!songStarted) {
			return;
		}
		var now = Date.now();
		var elapsed = now - self.bgAnimStartTime;
		var resetTriggered = false;
		for (var i = 0; i < self.backgrounds.length; i++) {
			var bg = self.backgrounds[i];
			// Make the scale speed increase as the scale increases (e.g. exponential or quadratic growth)
			//var scaleMultiplier = bg.scaleX * self.bgAnimationAcceleration;
			//bg.scaleX += self.bgAnimationSpeed * scaleMultiplier;
			bg.scaleX += self.bgAnimationSpeed * bg.scaleX;
			bg.scaleY = bg.scaleX;
			if (bg.scaleX > 3.0) {
				bg.scaleX = 0.12; //self.bgInitialScales[i];
				bg.scaleY = bg.scaleX;
			}
			//bg.alpha = Math.min(1, bg.scaleX + 0.66);
			bg.tint = 0x1697b8; // 0x33FF33;
		}
	};
	return self;
});
// Initialize the game;
/***********************************************************************************/ 
/********************************** BALL CLASS *************************************/
/***********************************************************************************/ 
var Ball = Container.expand(function () {
	var self = Container.call(this);
	// Create and attach ball asset
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: currentColor,
		alpha: 1
	});
	// Initialize ball properties
	self.speedX = 0;
	self.speedY = 0;
	// Track last intersecting state for each gate
	self.lastIntersectingGates = {};
	// Update method to follow runner's position
	self.update = function () {
		// Don't process gates until song has started
		if (!songStarted) {
			return;
		}
		// Make ball follow runner's exact position
		if (runner) {
			self.x = runner.x;
			self.y = runner.y;
		}
		// Check for collisions with gates
		if (gateManager && gateManager.gates) {
			// Iterate backwards to avoid index shifting issues when removing gates
			for (var i = gateManager.gates.length - 1; i >= 0; i--) {
				var gate = gateManager.gates[i];
				var gateId = gate.gateId;
				// Initialize tracking if needed
				if (self.lastIntersectingGates[gateId] === undefined) {
					self.lastIntersectingGates[gateId] = false;
				}
				// Check intersection with bounding box instead of gate asset
				var currentIntersecting = self.intersects(gate.boundingBox);
				// Detect transition from not intersecting to intersecting
				if (!self.lastIntersectingGates[gateId] && currentIntersecting) {
					// Mark gate as being destroyed to prevent multiple triggers
					if (!gate.isDestroying) {
						gate.isDestroying = true;
						// Animate scale down
						tween(gate, {
							scaleX: 0,
							scaleY: 0
						}, {
							duration: 300,
							easing: tween.easeIn,
							onFinish: function onFinish() {
								// Request destruction from gate manager
								gateManager.destroyGate(gate);
							}
						});
					}
					// Play the sound based on the gate's assigned key
					if (false && gate.noteKey) {
						// Extract the number from the key (e.g., "Key6" -> "6")
						var keyNumber = gate.noteKey.replace('Key', '');
						var soundKey = 'key' + keyNumber;
						// Play the corresponding sound
						LK.getSound(soundKey).play();
					}
				}
				// Update last intersecting state
				self.lastIntersectingGates[gateId] = currentIntersecting;
			}
			// No cleanup needed - gate IDs are unique and won't be reused
		}
	};
	return self;
});
/***********************************************************************************/ 
/******************************* FACE CLASS *********************************/
/***********************************************************************************/ 
var Face = Container.expand(function (options) {
	var self = Container.call(this);
	options = options || {};
	var points = Math.max(2, Math.min(100, options.points || 4)); // Ensure points are between 2 and 10
	self.baseSize = 100;
	self.w = options.w || self.baseSize;
	self.h = options.h || self.baseSize;
	self.d = options.d || self.baseSize;
	self.dx = options.dx || 0;
	self.dy = options.dy || 0;
	self.dz = options.dz || 0;
	self.rx = options.rx || 0;
	self.ry = options.ry || 0;
	self.rz = options.rz || 0;
	self.tint = options.ti || 0xFFFFFF;
	// Generate points for the face based on the number of points specified
	self.baseFaceCoordinates = [];
	for (var i = 0; i < points; i++) {
		var angle = 2 * Math.PI * (i / points);
		self.baseFaceCoordinates.push({
			x: self.w / 2 * Math.cos(angle) + self.dx * self.w,
			y: self.h / 2 * Math.sin(angle) + self.dy * self.h,
			z: self.dz * self.d
		});
	}
	self.baseFaceCoordinates.forEach(function (point) {
		// Update z of each face point coordinates depending on dz and rx, ry
		point.z += self.dz * Math.cos(self.rx) * Math.cos(self.ry);
	});
	// Create a polygon face using the Shape class
	self.face = new Shape(self.baseFaceCoordinates, self.tint);
	// Attach the face to the Face container
	self.addChild(self.face);
	// Rotate in 3D: X = roasting chicken / Y = whirling dervish / Z = wheel of Fortune
	self.rotate3D = function (angleX, angleY, angleZ, scale) {
		scale = scale || 1;
		self.faceCoordinates = self.baseFaceCoordinates.map(function (coord) {
			var x = coord.x - self.dx * self.w,
				y = coord.y - self.dy * self.h,
				z = coord.z - self.dz * self.d;
			// Apply initial rotations (rx, ry, rz)
			var newY = y * Math.cos(self.rx) - z * Math.sin(self.rx);
			var newZ = y * Math.sin(self.rx) + z * Math.cos(self.rx);
			var newX = x * Math.cos(self.ry) + newZ * Math.sin(self.ry);
			newZ = -x * Math.sin(self.ry) + newZ * Math.cos(self.ry);
			x = newX * Math.cos(self.rz) - newY * Math.sin(self.rz);
			y = newX * Math.sin(self.rz) + newY * Math.cos(self.rz);
			// Apply X-axis rotation
			newY = y * Math.cos(angleX) - newZ * Math.sin(angleX);
			newZ = y * Math.sin(angleX) + newZ * Math.cos(angleX);
			// Apply Y-axis rotation
			newX = x * Math.cos(angleY) + newZ * Math.sin(angleY);
			newZ = -x * Math.sin(angleY) + newZ * Math.cos(angleY);
			// Apply Z-axis rotation
			x = newX * Math.cos(angleZ) - newY * Math.sin(angleZ);
			y = newX * Math.sin(angleZ) + newY * Math.cos(angleZ);
			return {
				x: (x + self.dx * self.w) * scale,
				y: (y + self.dy * self.h) * scale,
				z: (newZ + self.dz * self.d) * scale
			};
		});
		self.face.updateCoordinates(self.faceCoordinates);
	};
	// Initialize face in 3D space
	self.rotate3D(0, 0, 0, 1);
});
/***********************************************************************************/ 
/********************************** GATE CLASS *************************************/
/***********************************************************************************/ 
var Gate = Container.expand(function () {
	var self = Container.call(this);
	// Create gate asset with initial properties
	self.gateAsset = self.attachAsset('gate', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366,
		scaleX: 0.26,
		// Start at same scale as tore2
		scaleY: 0.26,
		alpha: 1,
		visible: false
	});
	// Store direction angle for this gate
	self.directionAngle = 0;
	// Add bounding box for collision detection
	self.boundingBox = self.attachAsset('boundingBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 2450,
		alpha: 1 // Invisible by default
	});
	/* 
	width: 200,
	heigh: 100,
			*/ 
	// Store the color for this gate
	self.gateColor = 0xFFFFFF; // Default white, will be set by manager
	// Store unique ID for this gate
	self.gateId = null; // Will be set by manager
	// Set the tint to match the gate color
	self.setColor = function (color) {
		self.gateColor = color;
		self.gateAsset.tint = color;
		// Show bounding box in debug mode
		//if (isDebug) 
		{
			self.boundingBox.alpha = 0.8;
			self.boundingBox.tint = color;
		}
	};
	// Update scale to match background animation
	self.updateScale = function (newScale) {
		/* 
		self.scaleX = newScale;
		self.scaleY = newScale;
		self.alpha = Math.min(1, newScale + 0.66);
		*/ 
		self.gateAsset.scaleX = newScale;
		self.gateAsset.scaleY = newScale;
		self.gateAsset.alpha = Math.min(1, newScale + 0.66);
		// Scale bounding box proportionally
		self.boundingBox.scaleX = newScale; // 3 * newScale / 0.26; // Maintain 300px width relative to gate scale
		self.boundingBox.scaleY = newScale; //0.3 * newScale / 0.26; // Maintain 30px height relative to gate scale
		// Calculate boundingBox position using directionAngle and scale
		// Calculate distance from center based on scale
		var distance = (2450 - 1366) * newScale;
		// Use directionAngle to position boundingBox
		self.boundingBox.x = centerX + distance * Math.cos(self.directionAngle + Math.PI * 0.5);
		self.boundingBox.y = centerY + distance * Math.sin(self.directionAngle + Math.PI * 0.5);
		self.boundingBox.rotation = self.directionAngle;
	};
	return self;
});
/***********************************************************************************/ 
/********************************** GATE MANAGER CLASS *****************************/
/***********************************************************************************/ 
var GateManager = Container.expand(function () {
	var self = Container.call(this);
	// Array to hold gates
	self.gates = [];
	// Animation timing
	self.gateAnimStartTime = Date.now();
	self.gateAnimationSpeed = globalSpeed / 1000; // Same as background
	// Song timing properties
	self.currentSong = songListV3[0];
	self.songStartTime = Date.now();
	self.currentNoteIndex = 0;
	self.noteSpawnScale = 0.12; // Initial scale for new gates matching smallest tore
	self.lastGateAngle = null; // Track last gate angle for path continuity
	// Spawn a single gate at current time
	self.spawnGateAtTime = function () {
		// Get the current beat value
		var beatValue = null;
		if (self.currentNoteIndex < self.currentSong.songBeats.length) {
			beatValue = self.currentSong.songBeats[self.currentNoteIndex].beat;
		}
		// Map beat to key for color selection
		var keyNumber = parseInt(beatValue, 10) || 1; // Default to 1 if parse fails
		var noteKey = 'Key' + keyNumber;
		var keyColor = keyColorMap[noteKey] || currentColor; // Default to currentColor if key not found
		// --- Calculate gate travel time so it reaches the player at the correct beat time ---
		var startScale = self.noteSpawnScale;
		var endScale = 1.0; // The scale at which the gate should reach the player (runner)
		var speed = self.gateAnimationSpeed; // This is the per-tick scale growth factor
		// The scale grows as: scale = startScale * Math.exp(speed * t)
		// But in our code, scale increases as: scale += speed * scale per frame (exponential growth)
		// So, scale(t) = startScale * Math.exp(speed * t)
		// We want to solve for t: endScale = startScale * Math.exp(speed * t)
		// => t = ln(endScale/startScale) / speed
		// But our speed is per ms, so t is in ms
		var timeToReachPlayer = Math.log(endScale / startScale) / speed; // ms
		// Now, we want the gate to reach the player at the beat time, so we need to spawn it early
		// The current song time is (Date.now() - self.songStartTime)
		// The beat time is self.currentSong.songBeats[self.currentNoteIndex].time
		// So, we need to spawn the gate at (beatTime - timeToReachPlayer)
		// If we're late, spawn immediately
		var gate = new Gate();
		gate.setColor(keyColor);
		gate.updateScale(self.noteSpawnScale);
		// Store spawn time for tracking
		gate.spawnTime = Date.now();
		gate.colorIndex = 0;
		// Assign unique ID to gate
		gate.gateId = getNextGateId();
		// Store the note key for this gate
		gate.noteKey = noteKey;
		// Add rotation to the gate similar to runner movement limits
		// Define three fixed positions: left, center, right
		var leftAngle = -Math.PI * 0.5 + gateLimitAngle;
		var centerAngle = -Math.PI * 0.5 + Math.PI / 2;
		var rightAngle = -Math.PI * 0.5 + Math.PI - gateLimitAngle;
		// Determine gate position based on beat value
		// Beat 1 = right, Beat 2 = left, Beat 0 or 3 = center
		var fixedAngle = centerAngle;
		if (beatValue === "1") {
			fixedAngle = rightAngle;
		} else if (beatValue === "2") {
			fixedAngle = leftAngle;
		} else {
			// Beat values 0 and 3 go to center
			fixedAngle = centerAngle;
		}
		// Store this angle for the next gate
		self.lastGateAngle = fixedAngle;
		// Set the direction angle for this gate
		gate.directionAngle = fixedAngle;
		// Apply rotation to gate asset
		gate.gateAsset.rotation = fixedAngle;
		// Instead of adding the gate immediately, schedule it if needed
		var beatTime = self.currentSong.songBeats[self.currentNoteIndex].time;
		var now = Date.now();
		var songElapsed = now - self.songStartTime;
		var spawnTime = beatTime - timeToReachPlayer;
		if (songElapsed >= spawnTime) {
			// Spawn now
			self.gates.push(gate);
			self.addChild(gate);
		} else {
			// Schedule spawn for later
			LK.setTimeout(function () {
				self.gates.push(gate);
				self.addChild(gate);
			}, spawnTime - songElapsed);
		}
	};
	// Update gates animation
	self.update = function () {
		// Don't update if song hasn't started
		if (!songStarted) {
			return;
		}
		var now = Date.now();
		var songElapsed = now - self.songStartTime;
		// Check if we need to spawn a new gate based on song timing
		if (self.currentNoteIndex < self.currentSong.songBeats.length) {
			var nextBeat = self.currentSong.songBeats[self.currentNoteIndex];
			if (songElapsed >= nextBeat.time) {
				// Spawn a new gate for this beat
				self.spawnGateAtTime();
				self.currentNoteIndex++;
			}
		}
		// Animate existing gates
		for (var i = self.gates.length - 1; i >= 0; i--) {
			var gate = self.gates[i];
			var currentScale = gate.gateAsset.scaleX;
			// Increase scale with acceleration
			var newScale = currentScale + self.gateAnimationSpeed * currentScale;
			// Remove gate when too large
			if (newScale > 3.0) {
				gate.destroy();
				self.gates.splice(i, 1);
			} else {
				gate.updateScale(newScale);
			}
		}
		// Check if song has ended and needs restart
		self.checkSongEnd();
	};
	// Reset song when it ends
	self.resetSong = function () {
		self.songStartTime = Date.now();
		self.currentNoteIndex = 0;
		self.lastGateAngle = null; // Reset angle tracking for new song
	};
	// Check if song has ended and restart
	self.checkSongEnd = function () {
		if (self.currentNoteIndex >= self.currentSong.songBeats.length) {
			// All beats have been spawned, check if we should restart
			var lastBeatTime = self.currentSong.songBeats[self.currentSong.songBeats.length - 1].time;
			var songElapsed = Date.now() - self.songStartTime;
			// Wait a bit after the last beat before restarting
			if (songElapsed > lastBeatTime + 5000) {
				self.resetSong();
			}
		}
	};
	// Destroy a specific gate
	self.destroyGate = function (gate) {
		var index = self.gates.indexOf(gate);
		if (index > -1) {
			self.gates.splice(index, 1);
			gate.destroy();
		}
	};
	return self;
});
/***********************************************************************************/ 
/********************************** RUNNER CLASS ***********************************/
/***********************************************************************************/ 
var Runner = Container.expand(function () {
	var self = Container.call(this);
	// Create and attach runner asset
	var runnerGraphics = self.attachAsset('runnerDir4_001', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xFFFFFF,
		//currentColor,
		alpha: 1
	});
	// Initialize runner properties
	self.speedX = 0;
	self.speedY = 0;
	// Track last intersecting state for each gate
	self.lastIntersectingGates = {};
	// Add tick counter for scale flipping
	self.tickCounter = 0;
	self.update = function () {
		// Don't update if song hasn't started
		if (!songStarted) {
			return;
		}
		// Use facekit eye line angle to control runner position
		if (facekit && facekit.leftEye && facekit.rightEye && facekit.leftEye.x && facekit.rightEye.x) {
			// Calculate the angle between the eyes
			var eyeDeltaX = facekit.rightEye.x - facekit.leftEye.x;
			var eyeDeltaY = facekit.rightEye.y - facekit.leftEye.y;
			var eyeAngle = Math.atan2(eyeDeltaY, eyeDeltaX);
			// Normalize the angle to a tilt value (-1 to 1)
			// Typical head tilt range is about -0.3 to 0.3 radians (-17 to 17 degrees)
			var tiltValue = Math.max(-1, Math.min(1, eyeAngle / 0.3));
			// Determine target position based on eye tilt
			var targetSnapPos = snapPositions.center;
			if (tiltValue < -0.3) {
				// Tilted left - move to left lane
				targetSnapPos = snapPositions.left;
			} else if (tiltValue > 0.3) {
				// Tilted right - move to right lane
				targetSnapPos = snapPositions.right;
			}
			// Only animate if position changed
			if (targetSnapPos !== currentSnapPosition) {
				animateToSnapPosition(targetSnapPos);
			}
		}
		// Calculate angle based on runner's position relative to center
		var angle = Math.atan2(self.y - centerY, self.x - centerX);
		// Apply rotation to runner
		self.rotation = angle - Math.PI * 0.5; // Add PI/2 to orient correctly
		// Increment tick counter and flip scale only every 60 ticks
		self.tickCounter++;
		if (self.tickCounter >= 5) {
			self.scaleX *= -1;
			self.tickCounter = 0; // Reset counter
		}
	};
	return self;
});
/***********************************************************************************/ 
/********************************** SHAPE CLASS ************************************/
/***********************************************************************************/ 
var Shape = Container.expand(function (coordinates, tint) {
	var self = Container.call(this);
	self.polygon = drawPolygon(coordinates, tint); // Function to create a polygon from a list of coordinates
	self.tint = tint;
	self.attachLines = function () {
		// Iterate through each line in the polygon and attach it to the shape
		self.polygon.forEach(function (line) {
			self.addChild(line);
		});
	};
	self.attachLines();
	self.updateCoordinates = function (newCoordinates) {
		log("Shape updateCoordinates ", newCoordinates);
		// Ensure newCoordinates is an array and has the same length as the current polygon
		if (!Array.isArray(newCoordinates) || newCoordinates.length !== self.polygon.length) {
			error("Invalid newCoordinates length");
			return;
		}
		// Update each line in the polygon with new coordinates
		self.polygon = updatePolygon(self.polygon, newCoordinates);
	};
});
/***********************************************************************************/ 
/******************************* SIMPLE FACE CLASS *********************************/
/***********************************************************************************/ 
var SimpleFace = Container.expand(function (options) {
	var self = Container.call(this);
	log("SimpleFAce init options =", options);
	self.baseSize = 100;
	options = options || {};
	self.w = options.w || self.baseSize;
	self.h = options.h || self.baseSize;
	self.d = options.d || self.baseSize;
	self.dx = options.dx || 0;
	self.dy = options.dy || 0;
	self.dz = options.dz || 0;
	self.rx = options.rx || 0;
	self.ry = options.ry || 0;
	self.rz = options.rz || 0;
	self.tint = options.ti || 0xFFFFFF;
	// Define faceCoordinates property
	self.baseFaceCoordinates = [{
		x: -self.w + self.dx * self.w,
		y: -self.h + self.dy * self.h,
		z: self.dz * self.d
	},
	// Top-left
	{
		x: self.w + self.dx * self.w,
		y: -self.h + self.dy * self.h,
		z: self.dz * self.d
	},
	// Top-right
	{
		x: self.w + self.dx * self.w,
		y: self.h + self.dy * self.h,
		z: self.dz * self.d
	},
	// Bottom-right
	{
		x: -self.w + self.dx * self.w,
		y: self.h + self.dy * self.h,
		z: self.dz * self.d
	} // Bottom-left
	];
	log("SimpleFAce ready to init ...", self.baseFaceCoordinates, "DX=" + self.dx);
	self.baseFaceCoordinates.forEach(function (point) {
		// Update z of each face point coordinates depending on dz and rx, ry
		point.z += self.dz * Math.cos(self.rx) * Math.cos(self.ry);
	});
	// Create a square face using the Shape class
	self.face = new Shape(self.baseFaceCoordinates, self.tint);
	// Attach the face to the SimpleFace container
	self.addChild(self.face);
	// Rotate in 3d : X = roasting chicken / Y = whirling dervish / Z = wheel of Fortune
	self.rotate3D = function (angleX, angleY, angleZ, scale) {
		scale = scale || 1;
		log("SimpleFace rotate3D old coord=", self.faceCoordinates, Date.now());
		self.faceCoordinates = self.baseFaceCoordinates.map(function (coord) {
			return {
				x: coord.x,
				y: coord.y,
				z: coord.z
			};
		});
		// Apply rotation around X-axis
		// Adjust initial rotation parameters before applying new rotations
		self.faceCoordinates = self.faceCoordinates.map(function (coord) {
			// Apply initial rotation around Z-axis
			var xZ = coord.x * Math.cos(self.rz) - coord.y * Math.sin(self.rz);
			var yZ = coord.x * Math.sin(self.rz) + coord.y * Math.cos(self.rz);
			// Apply initial rotation around Y-axis
			var xY = xZ * Math.cos(self.ry) + coord.z * Math.sin(self.ry);
			var zY = coord.z * Math.cos(self.ry) - xZ * Math.sin(self.ry);
			// Apply initial rotation around X-axis
			var yX = yZ * Math.cos(self.rx) - zY * Math.sin(self.rx);
			var zX = yZ * Math.sin(self.rx) + zY * Math.cos(self.rx);
			return {
				x: xY,
				y: yX,
				z: zX
			};
		});
		// Apply new rotations
		// Calculate center of the face
		var centerX = self.faceCoordinates.reduce(function (acc, coord) {
			return acc + coord.x;
		}, 0) / self.faceCoordinates.length;
		var centerY = self.faceCoordinates.reduce(function (acc, coord) {
			return acc + coord.y;
		}, 0) / self.faceCoordinates.length;
		var centerZ = self.faceCoordinates.reduce(function (acc, coord) {
			return acc + coord.z;
		}, 0) / self.faceCoordinates.length;
		self.faceCoordinates = self.faceCoordinates.map(function (coord) {
			// Translate coordinates to rotate around the center including dy and dz adjustment
			var translatedY = (coord.y + self.dy * self.h - centerY) * Math.cos(angleX) - (coord.z + self.dz * self.d - centerZ) * Math.sin(angleX);
			var translatedZ = (coord.y + self.dy * self.h - centerY) * Math.sin(angleX) + (coord.z + self.dz * self.d - centerZ) * Math.cos(angleX);
			return {
				x: coord.x + self.dx * self.w - centerX,
				// Keep X unchanged but translate to rotate around center
				y: translatedY + centerY,
				z: translatedZ + centerZ
			};
		});
		self.faceCoordinates = self.faceCoordinates.map(function (coord) {
			var translatedX = (coord.z - centerZ) * Math.sin(angleY) + (coord.x - centerX) * Math.cos(angleY);
			var translatedZ = (coord.z - centerZ) * Math.cos(angleY) - (coord.x - centerX) * Math.sin(angleY);
			return {
				x: translatedX + centerX,
				y: coord.y,
				// Keep Y unchanged
				z: translatedZ + centerZ
			};
		});
		self.faceCoordinates = self.faceCoordinates.map(function (coord) {
			return {
				x: coord.x * scale,
				y: coord.y * scale,
				z: coord.z * scale
			};
		});
		log("SimpleFace rotate3D new coord=", self.faceCoordinates, Date.now());
		self.face.updateCoordinates(self.faceCoordinates);
	};
	// initialize face in 3D space
	self.rotate3D(0, 0, 0, 1);
	log("SimpleFace end init coord=", self.baseFaceCoordinates, Date.now());
});
// Music will be started by start button
// LK.playMusic('track_02');
// test gate
/* 
var testGate = new Gate();
var newScale = 1;
testGate.scaleX = newScale;
testGate.scaleY = newScale;
testGate.gateAsset.scaleX = newScale;
testGate.gateAsset.scaleY = newScale;
testGate.boundingBox.scaleX = newScale;
testGate.boundingBox.scaleY = newScale;
testGate.boundingBox.alpha = 0.3;
game.addChild(testGate);
*/ 
var StartButton = Container.expand(function () {
	var self = Container.call(this);
	// Create button background
	self.buttonBg = self.attachAsset('start', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Position at center of screen
	self.x = centerX;
	self.y = centerY;
	// Handle button press
	self.down = function () {
		// Prevent multiple presses
		if (songStarted) {
			return;
		}
		// Mark song as started
		songStarted = true;
		// Start the music
		LK.playMusic('track_01');
		// Reset gate manager timing
		if (gateManager) {
			gateManager.songStartTime = Date.now();
			gateManager.currentNoteIndex = 0;
		}
		// Fade out and remove button
		tween(self, {
			alpha: 0
		}, {
			duration: 500,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
// Utility function to draw a polygon using drawLine
var game = new LK.Game({
	backgroundColor: 0x000c33 // Initialize game with a black background
});

/**** 
* Game Code
****/ 
// Global center coordinates
var centerX = 1024;
var centerY = 1366;
// Global array of 6 neon colors
var neonColors = [0x39FF14,
// Neon Green
0xFF073A,
// Neon Red
0x00FFFF,
// Neon Cyan
0xF3F315,
// Neon Yellow
0xFF61F6,
// Neon Pink
0xFF9900 // Neon Orange
];
// Map keys to colors - 15 keys (0-14) mapped to neon colors
var keyColorMap = {
	'Key0': 0x39FF14,
	// Neon Green
	'Key1': 0xFF073A,
	// Neon Red
	'Key2': 0x00FFFF,
	// Neon Cyan
	'Key3': 0xF3F315,
	// Neon Yellow
	'Key4': 0xFF61F6,
	// Neon Pink
	'Key5': 0xFF9900,
	// Neon Orange
	'Key6': 0x39FF14,
	// Neon Green (repeat)
	'Key7': 0xFF073A,
	// Neon Red (repeat)
	'Key8': 0x00FFFF,
	// Neon Cyan (repeat)
	'Key9': 0xF3F315,
	// Neon Yellow (repeat)
	'Key10': 0xFF61F6,
	// Neon Pink (repeat)
	'Key11': 0xFF9900,
	// Neon Orange (repeat)
	'Key12': 0x39FF14,
	// Neon Green (repeat)
	'Key13': 0xFF073A,
	// Neon Red (repeat)
	'Key14': 0x00FFFF // Neon Cyan (repeat)
};
// Global currentColor, set to a random neon color
var currentColor = neonColors[Math.floor(Math.random() * neonColors.length)];
/***********************************************************************************/ 
/******************************* UTILITY FUNCTIONS *********************************/ 
/***********************************************************************************/ 
function drawPolygon(coordinates, tint) {
	log("drawPolygon ", coordinates);
	var lines = [];
	for (var i = 0; i < coordinates.length; i++) {
		var startPoint = coordinates[i];
		var endPoint = coordinates[(i + 1) % coordinates.length]; // Loop back to the first point
		var line = drawLine(startPoint.x, startPoint.y, endPoint.x, endPoint.y, tint);
		lines.push(line);
	}
	return lines;
}
function updatePolygon(lines, newCoordinates, scale) {
	log("updatePolygon ", lines, scale);
	// Ensure lines and newCoordinates have the same length
	if (lines.length !== newCoordinates.length) {
		error("updatePolygon error: lines and newCoordinates length mismatch");
		return lines;
	}
	// Update each line with new coordinates
	for (var i = 0; i < lines.length; i++) {
		var startPoint = newCoordinates[i];
		var endPoint = newCoordinates[(i + 1) % newCoordinates.length]; // Loop back to the first point for the last line
		updateLine(lines[i], startPoint.x, startPoint.y, endPoint.x, endPoint.y, scale);
	}
	return lines;
}
// Utility function to draw lines between two points
function drawLine(x1, y1, x2, y2, tint) {
	log("drawLine ", x1, y1);
	var line = LK.getAsset('line', {
		anchorX: 0.0,
		anchorY: 0.0,
		x: x1,
		y: y1,
		tint: tint
	});
	line.startX = x1;
	line.startY = y1;
	line.endX = x2;
	line.endY = y2;
	// Calculate the distance between the two points
	var distance = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
	// Set the width of the line to the distance between the points
	line.width = distance;
	// Calculate the angle between the two points
	var angle = Math.atan2(y2 - y1, x2 - x1);
	// Correct angle calculation for all quadrants
	line.rotation = angle;
	return line;
}
// Utility function to draw lines between two points
function updateLine(line, newX1, newY1, newX2, newY2, scale) {
	log("updateLine ", line);
	scale = scale === undefined ? 1 : scale;
	// Calculate midpoint of the original line
	var midX = (newX1 + newX2) / 2;
	var midY = (newY1 + newY2) / 2;
	// Adjust start and end points based on scale
	newX1 = midX + (newX1 - midX) * scale;
	newY1 = midY + (newY1 - midY) * scale;
	newX2 = midX + (newX2 - midX) * scale;
	newY2 = midY + (newY2 - midY) * scale;
	// Update line start and end coordinates after scaling
	line.x = newX1;
	line.y = newY1;
	line.startX = newX1;
	line.startY = newY1;
	line.endX = newX2;
	line.endY = newY2;
	// Recalculate the distance between the new scaled points
	var distance = Math.sqrt(Math.pow(newX2 - newX1, 2) + Math.pow(newY2 - newY1, 2));
	// Update the width of the line to the new distance
	line.width = distance;
	// Recalculate the angle between the new points
	var angle = Math.atan2(newY2 - newY1, newX2 - newX1);
	// Update the rotation of the line to the new angle
	line.rotation = angle;
	return line;
}
function log() {
	if (isDebug) {
		console.log(arguments);
	}
}
/***********************************************************************************/ 
/******************************* GAME VARIABLES*********************************/
/***********************************************************************************/ 
var songListV3 = [{
	"name": "Words Fly Fast",
	"songBeats": [{
		"time": 651,
		"beat": "1"
	}, {
		"time": 1256,
		"beat": "1"
	}, {
		"time": 1800,
		"beat": "1"
	}, {
		"time": 2364,
		"beat": "1"
	}, {
		"time": 2828,
		"beat": "1"
	}, {
		"time": 3324,
		"beat": "1"
	}, {
		"time": 3708,
		"beat": "1"
	}, {
		"time": 4192,
		"beat": "2"
	}, {
		"time": 4804,
		"beat": "2"
	}, {
		"time": 5320,
		"beat": "2"
	}, {
		"time": 5796,
		"beat": "2"
	}, {
		"time": 6240,
		"beat": "2"
	}, {
		"time": 6692,
		"beat": "2"
	}, {
		"time": 7176,
		"beat": "2"
	}, {
		"time": 7640,
		"beat": "2"
	}, {
		"time": 8092,
		"beat": "1"
	}, {
		"time": 8576,
		"beat": "2"
	}, {
		"time": 9124,
		"beat": "1"
	}, {
		"time": 9580,
		"beat": "2"
	}, {
		"time": 10084,
		"beat": "1"
	}, {
		"time": 10548,
		"beat": "2"
	}, {
		"time": 11072,
		"beat": "1"
	}, {
		"time": 11556,
		"beat": "2"
	}, {
		"time": 12092,
		"beat": "1"
	}, {
		"time": 12564,
		"beat": "2"
	}, {
		"time": 13008,
		"beat": "1"
	}, {
		"time": 13400,
		"beat": "2"
	}, {
		"time": 13916,
		"beat": "1"
	}, {
		"time": 14460,
		"beat": "2"
	}, {
		"time": 14944,
		"beat": "1"
	}, {
		"time": 15360,
		"beat": "2"
	}, {
		"time": 17340,
		"beat": "1"
	}, {
		"time": 18260,
		"beat": "2"
	}, {
		"time": 19196,
		"beat": "1"
	}, {
		"time": 20064,
		"beat": "2"
	}, {
		"time": 21092,
		"beat": "1"
	}, {
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		"beat": "2"
	}, {
		"time": 23100,
		"beat": "1"
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		"beat": "2"
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		"beat": "1"
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		"beat": "2"
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	}, {
		"time": 149312,
		"beat": "3"
	}, {
		"time": 149908,
		"beat": "1"
	}, {
		"time": 150804,
		"beat": "2"
	}, {
		"time": 151784,
		"beat": "3"
	}, {
		"time": 152328,
		"beat": "3"
	}, {
		"time": 152832,
		"beat": "3"
	}, {
		"time": 153236,
		"beat": "3"
	}, {
		"time": 153680,
		"beat": "1"
	}, {
		"time": 154518,
		"beat": "2"
	}]
}];
var isDebug = false;
var globalSpeed = 20;
var currentRotationAngle = 0;
var fullLog = [];
var fpsText;
var lastTick;
var frameCount;
var debugText;
// Removed drag-related variables - using tap controls now
var backgroundManager;
var gateManager;
var targetManager;
var ball;
var runner;
var borderLimitAngle = Math.PI * 0.08;
var gateLimitAngle = Math.PI * 0.2;
var gateUniqueId = 0;
var songStarted = false;
// Function to get next gate ID
function getNextGateId() {
	return gateUniqueId++;
}
/***********************************************************************************/ 
/***************************** GAME INITIALIZATION *********************************/
/***********************************************************************************/ 
function gameInitialize() {
	// Initialize background manager first (so it's behind other elements)
	backgroundManager = new BackgroundManager();
	game.addChild(backgroundManager);
	// Initialize runner at center position
	//updateSnapPosition(snapPositions.center);
	// Initialize gate manager
	gateManager = new GateManager();
	game.addChild(gateManager);
	// Create and position ball
	ball = new Ball();
	ball.x = 1024;
	ball.y = 2000;
	ball.alpha = true;
	game.addChild(ball);
	runner = new Runner();
	runner.x = 1024;
	runner.y = 2000;
	game.addChild(runner);
	// Create start button if song hasn't started
	if (!songStarted) {
		var startButton = new StartButton();
		game.addChild(startButton);
	}
	if (isDebug) {
		var debugMarker = LK.getAsset('debugMarker', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 2048 * 0.5,
			y: 2732 / 2
		});
		game.addChild(debugMarker);
		fpsText = new Text2('FPS: 0', {
			size: 50,
			fill: 0xFFFFFF
		});
		// Position FPS text at the bottom-right corner
		fpsText.anchor.set(1, 1); // Anchor to the bottom-right
		LK.gui.bottomRight.addChild(fpsText);
		// Update FPS display every second
		lastTick = Date.now();
		frameCount = 0;
		debugText = new Text2('Debug Info', {
			size: 50,
			fill: 0xFFFFFF
		});
		debugText.anchor.set(0.5, 0); // Anchor to the bottom-right
		LK.gui.top.addChild(debugText);
		// Create sound test button
		var soundTestButton = new Container();
		var buttonBg = LK.getAsset('line', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 50,
			scaleY: 15,
			tint: 0x333333
		});
		soundTestButton.addChild(buttonBg);
		var buttonText = new Text2('SOUND TEST', {
			size: 40,
			fill: 0xFFFFFF
		});
		buttonText.anchor.set(0.5, 0.5);
		soundTestButton.addChild(buttonText);
		// Position at top right
		soundTestButton.x = -100;
		soundTestButton.y = 50;
		LK.gui.topRight.addChild(soundTestButton);
		// Add click handler
		soundTestButton.down = function () {
			// Play all key sounds with 600ms delay
			for (var i = 0; i <= 14; i++) {
				(function (index) {
					LK.setTimeout(function () {
						LK.getSound('key' + index).play();
					}, index * 600);
				})(i);
			}
		};
	}
}
/***********************************************************************************/ 
/******************************** MAIN GAME LOOP ***********************************/
/***********************************************************************************/ 
game.update = function () {
	if (isDebug) {
		// FPS
		var now = Date.now();
		frameCount++;
		if (now - lastTick >= 1000) {
			// Update every second
			fpsText.setText('FPS: ' + frameCount);
			frameCount = 0;
			lastTick = now;
		}
	}
};
// Define magnetic snap positions
var snapPositions = {
	left: 0,
	center: 1,
	right: 2
};
// Current snap position (start at center)
var currentSnapPosition = snapPositions.center;
// Snap threshold for switching positions (percentage of screen width)
var snapThreshold = 0.15; // 15% of screen width
// Function to update runner position based on snap
function updateSnapPosition(snapPos) {
	currentSnapPosition = snapPos;
	// Define three fixed positions: left, center, right
	var leftAngle = -Math.PI * 0.5 + gateLimitAngle;
	var centerAngle = -Math.PI * 0.5 + Math.PI / 2;
	var rightAngle = -Math.PI * 0.5 + Math.PI - gateLimitAngle;
	var targetAngle = centerAngle;
	if (snapPos === snapPositions.left) {
		targetAngle = leftAngle;
	} else if (snapPos === snapPositions.center) {
		targetAngle = centerAngle;
	} else if (snapPos === snapPositions.right) {
		targetAngle = rightAngle;
	}
	// Calculate position on the ellipse path
	var radiusX = 924;
	var radiusY = 634;
	// Calculate new position
	runner.x = centerX + radiusX * Math.cos(targetAngle + Math.PI * 0.5);
	runner.y = centerY + radiusY * Math.sin(targetAngle + Math.PI * 0.5);
	// Apply rotation based on position
	var rotationMap = {
		0: -0.5,
		// left
		1: 0,
		// center
		2: 0.5 // right
	};
	currentRotationAngle = rotationMap[snapPos] * Math.PI * 0.5;
}
// Function to animate runner to new snap position
function animateToSnapPosition(snapPos) {
	// Check if we need to pass through center (moving from left to right or right to left)
	var needsIntermediateStep = false;
	if (currentSnapPosition === snapPositions.left && snapPos === snapPositions.right || currentSnapPosition === snapPositions.right && snapPos === snapPositions.left) {
		needsIntermediateStep = true;
	}
	// If we need intermediate step, first move to center
	if (needsIntermediateStep) {
		// Define three fixed positions: left, center, right
		var leftAngle = -Math.PI * 0.5 + gateLimitAngle;
		var centerAngle = -Math.PI * 0.5 + Math.PI / 2;
		var rightAngle = -Math.PI * 0.5 + Math.PI - gateLimitAngle;
		// Calculate position on the ellipse path
		var radiusX = 924;
		var radiusY = 634;
		// Calculate center position (intermediate step)
		var centerPosX = centerX + radiusX * Math.cos(centerAngle + Math.PI * 0.5);
		var centerPosY = centerY + radiusY * Math.sin(centerAngle + Math.PI * 0.5);
		// Animate to center first
		tween(runner, {
			x: centerPosX,
			y: centerPosY
		}, {
			duration: 100,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				// After reaching center, continue to final destination
				performSnapAnimation(snapPos);
			}
		});
		// Update rotation for center position
		currentRotationAngle = 0;
	} else {
		// Direct movement (no intermediate step needed)
		performSnapAnimation(snapPos);
	}
}
// Helper function to perform the actual snap animation
function performSnapAnimation(snapPos) {
	currentSnapPosition = snapPos;
	// Define three fixed positions: left, center, right
	var leftAngle = -Math.PI * 0.5 + gateLimitAngle;
	var centerAngle = -Math.PI * 0.5 + Math.PI / 2;
	var rightAngle = -Math.PI * 0.5 + Math.PI - gateLimitAngle;
	var targetAngle = centerAngle;
	if (snapPos === snapPositions.left) {
		targetAngle = rightAngle;
	} else if (snapPos === snapPositions.center) {
		targetAngle = centerAngle;
	} else if (snapPos === snapPositions.right) {
		targetAngle = leftAngle;
	}
	// Calculate position on the ellipse path
	var radiusX = 924;
	var radiusY = 634;
	// Calculate target position
	var targetX = centerX + radiusX * Math.cos(targetAngle + Math.PI * 0.5);
	var targetY = centerY + radiusY * Math.sin(targetAngle + Math.PI * 0.5);
	// Apply rotation based on position
	var rotationMap = {
		0: -0.5,
		// left
		1: 0,
		// center
		2: 0.5 // right
	};
	var targetRotation = rotationMap[snapPos] * Math.PI * 0.5;
	// Animate runner position
	tween(runner, {
		x: targetX,
		y: targetY
	}, {
		duration: 300,
		easing: tween.easeInOut
	});
	// Update rotation angle for continuous rotation
	currentRotationAngle = targetRotation;
}
// Add game event handlers for runner control
game.down = function (x, y, obj) {
	// Don't process input if song hasn't started
	if (!songStarted) {
		return;
	}
	// Only use touch controls if facekit eye tracking is not active
	if (!facekit || !facekit.leftEye || !facekit.rightEye || !facekit.leftEye.x || !facekit.rightEye.x) {
		// Divide screen into halves
		var screenWidth = 2048;
		var screenCenter = screenWidth / 2;
		// Check which half of the screen was tapped
		if (x < screenCenter) {
			// Tapped left half - move to left lane
			animateToSnapPosition(snapPositions.left);
		} else {
			// Tapped right half - move to right lane
			animateToSnapPosition(snapPositions.right);
		}
	}
};
game.move = function (x, y, obj) {
	// Empty - no longer needed for tap controls
};
game.up = function (x, y, obj) {
	// Only return to center on release if facekit eye tracking is not active
	if (!facekit || !facekit.leftEye || !facekit.rightEye || !facekit.leftEye.x || !facekit.rightEye.x) {
		// On release, return to center lane
		animateToSnapPosition(snapPositions.center);
	}
};
gameInitialize();