refactor: WaitForAlignment coroutine use BeatClock.cs insted of calculate independently.

Assets/Scripts/OCES/Audio/HandWritten/HandWrittenDefinitions.cs

@@ -46,6 +46,13 @@ namespace OCES.Audio
         Bar,
     }
     
+    public enum CallbackFlags
+    {
+        MusicSyncBeat = 1,
+        MusicSyncBar = 2,
+        MusicSyncGrid = 3,
+    }
+    
     public enum ActiveSoundState
     {
         Pending,   // 已进入调度，但还没真正播放
@@ -91,11 +98,4 @@ namespace OCES.Audio
 
     public partial class MusicPath    : IPathEntry { }
     public partial class AmbiencePath : IPathEntry { }
-    
-    public enum CallbackFlags
-    {
-        MusicSyncBeat = 1,
-        MusicSyncBar = 2,
-        MusicSyncGrid = 3,
-    }
 }

Assets/Scripts/OCES/Audio/HandWritten/LongAudio/BeatClock.cs

@@ -26,7 +26,7 @@ namespace OCES.Audio
             this.m_onGrid = onGrid;
         }
 
-        public void Restart(MusicContainer container, float inheritedBpm, double dspTime)
+        internal void Restart(MusicContainer container, float inheritedBpm, double dspTime)
         {
             //Debug.Log($"[BeatClock] Restart called, container={container.Id}, bpm={container.Bpm}, inherited={inheritedBpm}");
             
@@ -63,6 +63,26 @@ namespace OCES.Audio
             this.m_beatCoroutine = this.m_barCoroutine = this.m_gridCoroutine = null;
         }
 
+        internal double GetNextDspTime(AlignMode mode)
+        {
+            double now = AudioSettings.dspTime;
+            
+            if (this.m_blendError || this.m_stopped)
+            {
+                return now;
+            }
+            
+            double elapsed = now - this.m_startDspTime;
+            double period = mode switch
+            {
+                AlignMode.Beat => this.m_secondsPerBeat,
+                AlignMode.Bar  => this.m_secondsPerBeat * this.m_beatsPerBar,
+                _              => this.m_secondsPerBeat,
+            };
+            long next = (long)(elapsed / period) + 1L;
+            return this.m_startDspTime + next * period;
+        }
+
         IEnumerator BeatCoroutine()
         {
             double elapsed = AudioSettings.dspTime - this.m_startDspTime;

Assets/Scripts/OCES/Audio/HandWritten/LongAudio/MusicChannelPlayer.cs

@@ -197,34 +197,8 @@ namespace OCES.Audio
             if (mode == AlignMode.Immediate || container.Bpm <= 0f)
                 yield break;
 
-            double now = AudioSettings.dspTime;
+            double target = this.m_beatClock.GetNextDspTime(mode);
-            double elapsed = now - this.m_playStartTime;
+            yield return new WaitUntil(() =>  AudioSettings.dspTime >= target);
-
-            double secondsPerBeat = 60.0 / container.Bpm;
-
-            switch (mode)
-            {
-                case AlignMode.Beat:
-                {
-                    double beatsElapsed  = elapsed / secondsPerBeat;
-                    double nextBeat      = Math.Ceiling(beatsElapsed);
-                    double waitSeconds   = (nextBeat - beatsElapsed) * secondsPerBeat;
-                    if (waitSeconds > 0.001)
-                        yield return new WaitForSeconds((float)waitSeconds);
-                    break;
-                }
-                case AlignMode.Bar:
-                {
-                    int beatsPerBar = MusicContainerConfig.GetBeatsPerBar(container.TimeSig);
-                    double secondsPerBar   = secondsPerBeat * beatsPerBar;
-                    double barsElapsed     = elapsed / secondsPerBar;
-                    double nextBar         = Math.Ceiling(barsElapsed);
-                    double waitSeconds     = (nextBar - barsElapsed) * secondsPerBar;
-                    if (waitSeconds > 0.001)
-                        yield return new WaitForSeconds((float)waitSeconds);
-                    break;
-                }
-            }
         }
         
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