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

/**** 
* Classes
****/ 
// Note class for falling notes
var Note = Container.expand(function () {
	var self = Container.call(this);
	// Lane index (0-3)
	self.lane = 0;
	self.hit = false;
	self.missed = false;
	self.speed = 0; // pixels per tick
	self.time = 0; // time (in ticks) when note should reach the target
	self.spawned = false;
	// Attach correct note asset based on lane
	self.setLane = function (laneIdx) {
		self.lane = laneIdx;
		var assetId = 'note' + (laneIdx + 1);
		var noteAsset = self.attachAsset(assetId, {
			anchorX: 0.5,
			anchorY: 0.5,
			width: NOTE_WIDTH,
			height: NOTE_HEIGHT
		});
	};
	// Called every tick
	self.update = function () {
		if (!self.spawned) return;
		self.y += self.speed;
	};
	// Called when note is hit
	self.onHit = function () {
		if (self.hit || self.missed) return;
		self.hit = true;
		// Animate note
		tween(self, {
			alpha: 0,
			scaleX: 1.5,
			scaleY: 1.5
		}, {
			duration: 150,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	// Called when note is missed
	self.onMiss = function () {
		if (self.hit || self.missed) return;
		self.missed = true;
		LK.getSound('miss').play({
			fade: {
				start: 1,
				end: 0,
				duration: 1000
			}
		});
		tween(self, {
			alpha: 0
		}, {
			duration: 200,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	return self;
});
// People class for animated people at lane edges
var People = Container.expand(function () {
	var self = Container.call(this);
	self.isJumping = false;
	self.baseY = 0;
	// Attach a body (ellipse, larger, lower color)
	var body = self.attachAsset('centerCircle', {
		anchorX: 0.5,
		anchorY: 1,
		width: 100,
		height: 180,
		y: 0
	});
	// Arms removed: only body remains
	// Save baseY for jump animation
	self.baseY = self.y;
	// Animate jump
	self.jump = function () {
		if (self.isJumping) return;
		self.isJumping = true;
		var jumpHeight = 120;
		var jumpDuration = 180;
		var originalY = self.y;
		// --- Screen shake effect when people jump ---
		if (typeof game !== "undefined" && typeof tween !== "undefined") {
			// Only shake if not already shaking
			if (!game._isShaking) {
				game._isShaking = true;
				var originalGameX = game.x || 0;
				var originalGameY = game.y || 0;
				// Shake: move game.x/y by a small random offset, then return to original
				var shakeAmount = 40; // much stronger shake for individual jumps
				var shakeDuration = 180;
				// Shake out
				tween(game, {
					x: originalGameX + (Math.random() - 0.5) * shakeAmount,
					y: originalGameY + (Math.random() - 0.5) * shakeAmount
				}, {
					duration: shakeDuration,
					onFinish: function onFinish() {
						// Shake back
						tween(game, {
							x: originalGameX,
							y: originalGameY
						}, {
							duration: shakeDuration,
							onFinish: function onFinish() {
								game._isShaking = false;
							}
						});
					}
				});
			}
		}
		tween(self, {
			y: originalY - jumpHeight
		}, {
			duration: jumpDuration,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(self, {
					y: originalY
				}, {
					duration: jumpDuration,
					easing: tween.easeIn,
					onFinish: function onFinish() {
						self.isJumping = false;
					}
				});
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x181818
});

/**** 
* Game Code
****/ 
// Notes are destroyed by tapping them directly before they reach the white target area at the bottom
// 4 note lanes, each with a different color for clarity
// --- Game Constants ---
var NUM_LANES = 4;
var LANE_WIDTH = 200;
var LANE_SPACING = 40;
var NOTE_WIDTH = 340; // Wider notes
var NOTE_HEIGHT = 340; // Taller notes (stretches upward)
var TARGET_HEIGHT = 60; // White target area is now just a visual "danger" zone, reduced height for smaller targets
var LANE_HEIGHT = 2200;
var GAME_WIDTH = 2048;
var GAME_HEIGHT = 2732;
var LANE_TOTAL_WIDTH = NUM_LANES * LANE_WIDTH + (NUM_LANES - 1) * LANE_SPACING;
var LANE_START_X = (GAME_WIDTH - LANE_TOTAL_WIDTH) / 2 + LANE_WIDTH / 2;
var TARGET_Y = GAME_HEIGHT - 220; // Target zone Y position
// --- Game State --- 
var notes = []; // All active notes
var noteIndex = 0; // Index of next note to spawn
var songTicks = 0; // Ticks since song start
var score = 0;
var combo = 0;
var maxCombo = 0;
var misses = 0;
var maxMisses = 10;
var songEnded = false;
var songStarted = false;
var lastTick = 0;
// Note speed multiplier for gradual speed up
var noteSpeedMultiplier = 1.0;
// --- UI Elements ---
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var comboTxt = new Text2('', {
	size: 70,
	fill: 0xFFE066
});
comboTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(comboTxt);
comboTxt.y = 130;
var missTxt = new Text2('', {
	size: 70,
	fill: 0xFF6666
});
missTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(missTxt);
missTxt.y = 210;
// --- Add Background ---
var background = LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	width: GAME_WIDTH,
	height: GAME_HEIGHT
});
game.addChild(background);
// --- Lanes and Targets ---
var lanes = [];
var targets = [];
var peopleLeft = [];
var peopleRight = [];
for (var i = 0; i < NUM_LANES; i++) {
	// Lane background
	var laneX = LANE_START_X + i * (LANE_WIDTH + LANE_SPACING);
	var lane = LK.getAsset('lane', {
		anchorX: 0.5,
		anchorY: 0,
		x: laneX,
		y: 0,
		width: LANE_WIDTH,
		height: LANE_HEIGHT
	});
	game.addChild(lane);
	lanes.push(lane);
	// Visually improved target: larger, more distinct, with a colored border effect
	var target = LK.getAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: laneX,
		y: TARGET_Y,
		width: LANE_WIDTH + 40,
		// Make target slightly wider for better visuals
		height: TARGET_HEIGHT + 40 // Make target slightly taller for better visuals
	});
	game.addChild(target);
	// Add a second, inner target for a "bullseye" effect
	var innerTarget = LK.getAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: laneX,
		y: TARGET_Y,
		width: LANE_WIDTH - 30,
		height: TARGET_HEIGHT - 20
	});
	game.addChild(innerTarget);
	// Store both for later effects
	targets.push({
		outer: target,
		inner: innerTarget
	});
}
// Place people only outside the lanes, never over the road/lane area
// --- Randomized, non-overlapping, not-in-center people placement ---
peopleLeft = [];
peopleRight = [];
var NUM_PEOPLE_PER_EDGE = 16; // Increased people per side for more crowd
var PERSON_RADIUS = 90; // Half of body width, for spacing
var OUTER_X_OFFSET = 120; // How far outside the lane edge to place people
// Allow people to go all the way to the screen edge, not just near the lanes
var FAR_LEFT_X_MIN = 60;
var FAR_LEFT_X_MAX = getLaneX(0) - LANE_WIDTH / 2 - OUTER_X_OFFSET - 10;
var FAR_RIGHT_X_MIN = getLaneX(NUM_LANES - 1) + LANE_WIDTH / 2 + OUTER_X_OFFSET + 10;
var FAR_RIGHT_X_MAX = GAME_WIDTH - 60;
var Y_MIN = 200; // Don't go too high
var Y_MAX = TARGET_Y - 60; // Don't go too low
var CENTER_EXCLUSION_X = GAME_WIDTH / 2 - 320; // Exclude a wide center band
var CENTER_EXCLUSION_WIDTH = 640; // Center band width to avoid
var MAX_ATTEMPTS = 40; // Max tries to find a non-overlapping spot
function isFarEnough(x, y, arr) {
	for (var i = 0; i < arr.length; i++) {
		var dx = x - arr[i].x;
		var dy = y - arr[i].y;
		if (Math.sqrt(dx * dx + dy * dy) < PERSON_RADIUS * 2.1) return false;
	}
	return true;
}
function isNotCenter(x) {
	return !(x > CENTER_EXCLUSION_X && x < CENTER_EXCLUSION_X + CENTER_EXCLUSION_WIDTH);
}
// Left edge: randomize y, keep x always outside leftmost lane, avoid center, avoid overlap
for (var i = 0; i < NUM_PEOPLE_PER_EDGE; i++) {
	var leftPerson = new People();
	var attempts = 0;
	var px, py;
	do {
		py = Y_MIN + Math.random() * (Y_MAX - Y_MIN);
		// Randomize x across the full left empty area
		px = FAR_LEFT_X_MIN + Math.random() * (FAR_LEFT_X_MAX - FAR_LEFT_X_MIN);
		attempts++;
	} while ((!isFarEnough(px, py, peopleLeft) || !isNotCenter(px)) && attempts < MAX_ATTEMPTS);
	leftPerson.x = px;
	leftPerson.y = py;
	game.addChild(leftPerson);
	peopleLeft.push(leftPerson);
}
// Right edge: randomize y, keep x always outside rightmost lane, avoid center, avoid overlap
for (var i = 0; i < NUM_PEOPLE_PER_EDGE; i++) {
	var rightPerson = new People();
	var attempts = 0;
	var px, py;
	do {
		py = Y_MIN + Math.random() * (Y_MAX - Y_MIN);
		// Randomize x across the full right empty area
		px = FAR_RIGHT_X_MIN + Math.random() * (FAR_RIGHT_X_MAX - FAR_RIGHT_X_MIN);
		attempts++;
	} while ((!isFarEnough(px, py, peopleRight) || !isNotCenter(px)) && attempts < MAX_ATTEMPTS);
	rightPerson.x = px;
	rightPerson.y = py;
	game.addChild(rightPerson);
	peopleRight.push(rightPerson);
}
// --- Song Data (Random Infinite Notes) ---
// Each note: {lane: 0-3, time: tick when note should reach target}
// We'll generate notes on the fly, at random lanes and random intervals
var bpm = 60;
var ticksPerBeat = 60 * 60 / bpm; // 60fps
var NOTE_TRAVEL_TICKS = 180; // 3 seconds at 60fps
// Infinite random note generator state
var nextNoteTick = 60; // When the next note should appear (in songTicks)
function getRandomLane() {
	return Math.floor(Math.random() * NUM_LANES);
}
function getRandomInterval() {
	// Random interval between notes: 0.5x to 1.5x of ticksPerBeat
	return Math.floor(ticksPerBeat * (0.5 + Math.random()));
}
// --- Helper Functions ---
function getLaneX(laneIdx) {
	return LANE_START_X + laneIdx * (LANE_WIDTH + LANE_SPACING);
}
// --- Game Logic ---
// Start song/music
function startSong() {
	if (songStarted) return;
	songStarted = true;
	LK.playMusic('song1');
	songTicks = 0;
	noteIndex = 0;
	score = 0;
	combo = 0;
	maxCombo = 0;
	misses = 0;
	songEnded = false;
	scoreTxt.setText('0');
	comboTxt.setText('');
	missTxt.setText('');
	notes.length = 0;
	// Reset nextNoteTick and noteSpeedMultiplier to ensure smooth start
	nextNoteTick = 60;
	noteSpeedMultiplier = 1.0;
}
// End song/game
function endSong(win) {
	if (songEnded) return;
	songEnded = true;
	LK.stopMusic();
	// No win or game over, just stop music and mark as ended
}
// --- Input Handling ---
game.down = function (x, y, obj) {
	// Only allow input if song is running
	if (!songStarted || songEnded) return;
	// Check if tap is on any note (from topmost to bottom)
	var hit = false;
	var _loop = function _loop() {
			note = notes[i];
			if (note.hit || note.missed) return 0; // continue
			// Get note bounds
			noteLeft = note.x - NOTE_WIDTH / 2;
			noteRight = note.x + NOTE_WIDTH / 2;
			noteTop = note.y - NOTE_HEIGHT / 2;
			noteBottom = note.y + NOTE_HEIGHT / 2;
			if (x >= noteLeft && x <= noteRight && y >= noteTop && y <= noteBottom) {
				// Hit!
				note.onHit();
				hit = true;
				score += 100;
				combo += 1;
				if (combo > maxCombo) maxCombo = combo;
				scoreTxt.setText(score + '');
				comboTxt.setText(combo > 1 ? combo + ' Combo!' : '');
				LK.getSound('tap').play();
				// Make a random subset of people jump when any note is hit!
				// Every 10 combo, make all people jump and apply a stronger shake
				if (typeof peopleLeft !== "undefined" && typeof peopleRight !== "undefined") {
					if (combo > 0 && combo % 10 === 0) {
						// All people jump!
						for (var iAll = 0; iAll < peopleLeft.length; iAll++) {
							if (peopleLeft[iAll]) peopleLeft[iAll].jump();
						}
						for (var iAll = 0; iAll < peopleRight.length; iAll++) {
							if (peopleRight[iAll]) peopleRight[iAll].jump();
						}
						// Stronger shake: override game.x/y with a bigger shake
						if (typeof game !== "undefined" && typeof tween !== "undefined") {
							if (!game._isShaking) {
								game._isShaking = true;
								var originalGameX = game.x || 0;
								var originalGameY = game.y || 0;
								var shakeAmount = 60; // much stronger shake
								var shakeDuration = 120;
								tween(game, {
									x: originalGameX + (Math.random() - 0.5) * shakeAmount,
									y: originalGameY + (Math.random() - 0.5) * shakeAmount
								}, {
									duration: shakeDuration,
									onFinish: function onFinish() {
										tween(game, {
											x: originalGameX,
											y: originalGameY
										}, {
											duration: shakeDuration,
											onFinish: function onFinish() {
												game._isShaking = false;
											}
										});
									}
								});
							}
						}
					} else {
						// Helper to get unique random indices
						var getRandomIndices = function getRandomIndices(arrLen, count) {
							var indices = [];
							var used = [];
							while (indices.length < count && indices.length < arrLen) {
								var idx = Math.floor(Math.random() * arrLen);
								if (!used[idx]) {
									indices.push(idx);
									used[idx] = true;
								}
							}
							return indices;
						};
						// How many people to jump per side? 1-3 random per side
						leftJumpCount = 1 + Math.floor(Math.random() * 3);
						rightJumpCount = 1 + Math.floor(Math.random() * 3);
						leftIndices = getRandomIndices(peopleLeft.length, leftJumpCount);
						rightIndices = getRandomIndices(peopleRight.length, rightJumpCount);
						for (j = 0; j < leftIndices.length; j++) {
							idx = leftIndices[j];
							if (peopleLeft[idx]) peopleLeft[idx].jump();
						}
						for (j = 0; j < rightIndices.length; j++) {
							idx = rightIndices[j];
							if (peopleRight[idx]) peopleRight[idx].jump();
						}
					}
				}
				// Show floating feedback text based on combo
				feedbackText = '';
				if (combo >= 30) {
					feedbackText = 'PERFECT!';
				} else if (combo >= 15) {
					feedbackText = 'GREAT!';
				} else if (combo >= 5) {
					feedbackText = 'GOOD!';
				}
				if (feedbackText) {
					fbTxt = new Text2(feedbackText, {
						size: 120,
						fill: 0xFFD700,
						font: "'GillSans-Bold',Impact,'Arial Black',Tahoma"
					});
					fbTxt.anchor.set(0.5, 0.5);
					fbTxt.x = GAME_WIDTH / 2;
					fbTxt.y = GAME_HEIGHT / 2 - 200;
					fbTxt.alpha = 1;
					game.addChild(fbTxt);
					tween(fbTxt, {
						y: fbTxt.y - 120,
						alpha: 0
					}, {
						duration: 700,
						easing: tween.easeOut,
						onFinish: function onFinish() {
							fbTxt.destroy();
						}
					});
				}
				return 1; // break
			}
		},
		note,
		noteLeft,
		noteRight,
		noteTop,
		noteBottom,
		leftJumpCount,
		rightJumpCount,
		leftIndices,
		rightIndices,
		j,
		idx,
		j,
		idx,
		feedbackText,
		fbTxt,
		_ret;
	for (var i = notes.length - 1; i >= 0; i--) {
		_ret = _loop();
		if (_ret === 0) continue;
		if (_ret === 1) break;
	}
	if (!hit) {
		// Missed tap (no note hit)
		combo = 0;
		comboTxt.setText('');
		// No misses for tap misses, no flash
	}
};
// --- Main Game Loop ---
game.update = function () {
	if (!songStarted || songEnded) return;
	songTicks += 1;
	// Gradually increase noteSpeedMultiplier (very slow ramp, e.g. +0.0002 per tick)
	if (noteSpeedMultiplier < 2.0) {
		noteSpeedMultiplier += 0.0002;
		if (noteSpeedMultiplier > 2.0) noteSpeedMultiplier = 2.0;
	}
	// Spawn notes as needed (random, infinite)
	// After 5000 points, do not increase note spawn count; only speed increases
	var notesToSpawn = 1;
	// No change to notesToSpawn after 5000 points
	while (songTicks >= nextNoteTick - NOTE_TRAVEL_TICKS) {
		for (var spawnIdx = 0; spawnIdx < notesToSpawn; spawnIdx++) {
			var lane = getRandomLane();
			var noteTime = nextNoteTick;
			var note = new Note();
			note.setLane(lane);
			note.x = getLaneX(lane);
			note.y = -NOTE_HEIGHT / 2;
			note.speed = (TARGET_Y + NOTE_HEIGHT / 2) / NOTE_TRAVEL_TICKS * noteSpeedMultiplier;
			note.time = noteTime;
			note.spawned = true;
			notes.push(note);
			game.addChild(note);
		}
		// Schedule next note
		nextNoteTick += getRandomInterval();
	}
	// Update notes
	for (var i = notes.length - 1; i >= 0; i--) {
		var note = notes[i];
		note.update();
		// If note reached target zone and not hit, mark as missed
		if (!note.hit && !note.missed && note.y >= TARGET_Y + TARGET_HEIGHT / 2) {
			note.onMiss();
			combo = 0;
			misses += 1;
			comboTxt.setText('');
			missTxt.setText('Misses: ' + misses);
			LK.getSound('miss').play({
				fade: {
					start: 1,
					end: 0,
					duration: 1000
				}
			});
			LK.effects.flashObject(targets[note.lane].outer, 0xff0000, 200);
			LK.effects.flashObject(targets[note.lane].inner, 0xff6666, 200);
			if (misses >= maxMisses) {
				// No game over, just keep going
			}
		}
		// Remove destroyed notes
		if (note.destroyed) {
			notes.splice(i, 1);
		}
	}
	// --- Move people to new random positions every 2 seconds ---
	if (typeof game._lastPeopleMoveTick === "undefined") game._lastPeopleMoveTick = 0;
	if (songTicks - game._lastPeopleMoveTick > 120) {
		// Helper to move a person to a new random position (non-overlapping, not center)
		var movePerson = function movePerson(person, arr, isLeft) {
			var attempts = 0;
			var px, py;
			do {
				py = Y_MIN + Math.random() * (Y_MAX - Y_MIN);
				if (isLeft) {
					// Move anywhere in the left empty area
					px = FAR_LEFT_X_MIN + Math.random() * (FAR_LEFT_X_MAX - FAR_LEFT_X_MIN);
				} else {
					// Move anywhere in the right empty area
					px = FAR_RIGHT_X_MIN + Math.random() * (FAR_RIGHT_X_MAX - FAR_RIGHT_X_MIN);
				}
				attempts++;
			} while ((!isFarEnough(px, py, arr) || !isNotCenter(px)) && attempts < MAX_ATTEMPTS);
			// Animate to new position (move very slowly, never teleport)
			tween(person, {
				x: px,
				y: py
			}, {
				duration: 3200,
				// much slower movement (3.2 seconds)
				easing: tween.easeInOut
			});
			person.baseY = py;
		}; // Move left people
		// every 2 seconds at 60fps
		game._lastPeopleMoveTick = songTicks;
		for (var i = 0; i < peopleLeft.length; i++) {
			movePerson(peopleLeft[i], peopleLeft, true);
		}
		// Move right people
		for (var i = 0; i < peopleRight.length; i++) {
			movePerson(peopleRight[i], peopleRight, false);
		}
	}
	// No win condition, keep game running
};
// --- Start the game ---
startSong();