大修
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SoulliesOfficial
@@ -1,90 +1,159 @@
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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using UniRx;
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using Ichni.RhythmGame;
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using SLSUtilities.General;
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using UnityEngine;
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namespace Ichni.RhythmGame
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{
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public class NoteManager : MonoBehaviour
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/// <summary>
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/// 编辑器 NoteManager：集中管理场上所有 Note 的激活/隐藏与逐帧更新。
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///
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/// 与游戏本体的关键区别——时间可逆性：
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/// 游戏本体时间单向流动，_nextNoteIndex 只递增。
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/// 编辑器时间可随意跳转 / 倒退（拖动 Slider、按数字键），
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/// 因此本管理器采用"每帧重新扫描激活窗口"的策略：
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/// - 时间区间内的 Note → 激活并更新
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/// - 时间区间外的 Note → 隐藏
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/// 保证无论时间如何跳转，Note 的可见性和状态始终与 songTime 一致。
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/// </summary>
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public class NoteManager : Singleton<NoteManager>
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{
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public static NoteManager instance;
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public List<(NoteBase note, float activationTime, float finishTime)> pendingNotes = new List<(NoteBase, float, float)>();
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private List<(NoteBase note1, bool isActive, float activationTime)> ProcessingNotes = new List<(NoteBase, bool, float)>();
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#region [单例别名] Singleton Alias
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public new static NoteManager instance => Instance;
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#endregion
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#region [数据结构] Note Record
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/// <summary>Note 条目：存储 Note 本身及其激活/消失的时间阈值</summary>
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private struct NoteRecord
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{
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public NoteBase note;
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public float activationTime; // Note 应当进入可见状态的时间点
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public float finishTime; // Note 应当退出可见状态的时间点
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}
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/// <summary>
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/// 所有已注册的 Note，按 activationTime 升序排列。
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/// 排序后可用二分查找高效定位当前窗口。
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/// </summary>
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private List<NoteRecord> _pendingNotes = new List<NoteRecord>(128);
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/// <summary>当前帧内激活的 Note（缓存，减少 GC）</summary>
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private List<NoteBase> _currentlyActive = new List<NoteBase>(64);
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private bool _isDirty = false; // 注册/更新后需要重排序
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#endregion
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#region [注册与管理] Registration
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/// <summary>注册一个新 Note（isNewOne = true）</summary>
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public void RegisterNote(NoteBase note, float activationTime, float finishTime)
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{
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pendingNotes.Add((note, activationTime, finishTime));
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AllNotesRegistered();
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print($"Registered note {note.elementName} with activation time {activationTime} and finish time {finishTime}");
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}
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public void Awake()
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{
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instance = this;
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_pendingNotes.Add(new NoteRecord
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{
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note = note,
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activationTime = activationTime,
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finishTime = finishTime
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});
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_isDirty = true;
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}
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/// <summary>更新已注册 Note 的时间信息（参数改变后重新计算窗口）</summary>
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public void ChangeNoteInfo(NoteBase note, float activationTime, float finishTime)
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{
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int idx = pendingNotes.FindIndex(i => i.note == note);
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int idx = _pendingNotes.FindIndex(r => r.note == note);
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if (idx != -1)
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{
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var one = pendingNotes[idx];
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one.finishTime = finishTime;
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one.activationTime = activationTime;
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pendingNotes[idx] = one;
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AllNotesRegistered();
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_pendingNotes[idx] = new NoteRecord
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{
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note = note,
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activationTime = activationTime,
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finishTime = finishTime
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};
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_isDirty = true;
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}
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}
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// 在所有物体注册完毕后，对列表进行一次排序
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/// <summary>手动触发排序（若需要在注册大批 Note 后一次性完成）</summary>
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public void AllNotesRegistered()
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{
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pendingNotes.Sort((a, b) => a.activationTime.CompareTo(b.activationTime));
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SortIfDirty();
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}
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void Update()
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private void SortIfDirty()
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{
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float currentTime = EditorManager.instance.songInformation.songTime;
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foreach (var item in ProcessingNotes)
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{
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var (note, isActive, activationTime) = item;
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if (!isActive) note.Update();
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note.gameObject.SetActive(isActive);
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if (isActive)
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{
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note.Update();
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if (currentTime < activationTime)
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{
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note.noteVisual?.Recover();
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}
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else if (note is Hold hold && currentTime >= hold.holdEndTime)
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{
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hold.SetFinishEffects();
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}
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}
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}
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ProcessingNotes.Clear();
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// 一次性移除所有 null 项
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pendingNotes.RemoveAll(item => item.note == null);
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foreach (var item in pendingNotes)
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{
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var (note, activationTime, finishTime) = item;
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bool shouldBeActive = currentTime >= activationTime && currentTime <= finishTime;
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bool isActive = note.gameObject.activeSelf;
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if (shouldBeActive && !isActive)
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{
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ProcessingNotes.Add((note, true, activationTime));
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}
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else if (!shouldBeActive && isActive)
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{
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ProcessingNotes.Add((note, false, activationTime));
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}
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}
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if (!_isDirty) return;
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// 移除已销毁的 Note
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_pendingNotes.RemoveAll(r => r.note == null);
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_pendingNotes.Sort((a, b) => a.activationTime.CompareTo(b.activationTime));
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_isDirty = false;
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}
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#endregion
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#region [中央集权主循环] Manager-Driven Tick
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/// <summary>
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/// 由 EditorManager.Update 统一调度。
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///
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/// <para>
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/// 编辑器时间可逆策略：每帧通过二分查找定位当前 songTime 覆盖的激活窗口，
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/// 对窗口内的 Note 激活并调用 Update()，对窗口外的 Note 隐藏。
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/// 无需维护 _nextNoteIndex 指针，天然支持时间任意跳转与倒退。
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/// </para>
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/// </summary>
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public void ManualTick(float songTime)
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{
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SortIfDirty();
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// 1. 清空上一帧的激活记录
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_currentlyActive.Clear();
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// 2. 二分查找第一个 activationTime <= songTime 的 Note 起始位置
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int count = _pendingNotes.Count;
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if (count == 0) return;
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int left = 0, right = count - 1, firstInWindow = count;
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while (left <= right)
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{
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int mid = (left + right) >> 1;
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if (_pendingNotes[mid].activationTime <= songTime)
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{
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firstInWindow = mid;
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left = mid + 1;
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}
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else
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{
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right = mid - 1;
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}
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}
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// firstInWindow 此时指向最后一个 activationTime <= songTime 的 Note，
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// 从 0 向左扫描（也就是从头扫描到 firstInWindow）都可能在窗口内
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// 实际需要：activationTime <= songTime && finishTime >= songTime
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// 3. 遍历所有 Note，判断是否在当前窗口内
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for (int i = 0; i < count; i++)
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{
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var record = _pendingNotes[i];
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if (record.note == null) continue;
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bool shouldBeActive = record.activationTime <= songTime && record.finishTime >= songTime;
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bool isActive = record.note.gameObject.activeSelf;
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if (shouldBeActive)
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{
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if (!isActive) record.note.gameObject.SetActive(true);
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_currentlyActive.Add(record.note);
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}
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else
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{
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if (isActive) record.note.gameObject.SetActive(false);
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}
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}
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// 4. 集中驱动当前帧内所有激活 Note 的逐帧更新
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for (int i = _currentlyActive.Count - 1; i >= 0; i--)
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{
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_currentlyActive[i].ManualUpdate(songTime);
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}
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}
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#endregion
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}
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}
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