Signed-off-by: TRAfoer <lhf190@outlook.com>

Assets/Scripts/DynamicUI/Timeline/Timeline.cs

@@ -46,6 +46,12 @@ namespace Ichni.Editor
         }
         private void DetectSetRange()
         {
+            if (Keyboard.current.spaceKey.wasPressedThisFrame)
+            {
+
+                EditorManager.instance.musicPlayer.PlayMusic();
+
+            }
             if (Mouse.current.scroll.ReadValue().y != 0)
             {
 

Assets/Scripts/EditorGame/Base/FlexibleTypes/FlexibleFloat.cs

@@ -181,7 +181,7 @@ namespace Ichni.RhythmGame
                     return;
                 }
             }
-
+            currentAnimationIndex = 0;
             return;
         }
 

Assets/Scripts/EditorGame/GameElements/Track/Trail.cs

@@ -20,6 +20,11 @@ namespace Ichni.RhythmGame
         public Gradient gradient;
 
         public TransformSubmodule transformSubmodule { get; set; }
+        float IHaveTrail.visibleTimeLength
+        {
+            get => visibleTimeLength;
+            set => visibleTimeLength = value;
+        }
 
         public static Trail GenerateElement(string name, Guid id, List<string> tags, bool isFirstGenerated,
             GameElement parentElement, float visibleTimeLength, bool isAutoOrient, float widthMultiplier,
@@ -121,11 +126,42 @@ namespace Ichni.RhythmGame
                 }
             }
         }
+        public static void FreezeAllTrails(bool freeze)
+        {
+            foreach (GameElement x in EditorManager.instance.beatmapContainer.gameElementList)
+            {
+                if (x is IHaveTrail t && t != null)
+                {
+                    FreezeTrail(freeze, t);
+                }
+            }
+        }
+        public static void FreezeTrail(bool freeze, IHaveTrail trail)
+        {
+
+
+            if (!freeze)
+            {
+                UnfreezeTrail(trail);
+                return;
+            }
+            trail.trailRenderer.time = Mathf.Infinity; // 使现有轨迹永不消失
+            trail.trailRenderer.emitting = false;      // 停止生成新轨迹点
+        }
+
+        // 解冻尾迹（恢复动态更新）
+        public static void UnfreezeTrail(IHaveTrail trail)
+        {
+            trail.trailRenderer.Clear();               // 清除当前冻结的轨迹
+            trail.trailRenderer.time = trail.visibleTimeLength;   // 恢复原始持续时间
+            trail.trailRenderer.emitting = true;       // 重新开始发射轨迹点
+        }
     }
 
     public interface IHaveTrail
     {
         TrailRenderer trailRenderer { get; set; }
+        float visibleTimeLength { get; set; }
     }
 
     namespace Beatmap

Assets/Scripts/Manager/MusicPlayer.cs

@@ -31,9 +31,13 @@ namespace Ichni.Editor
         {
 
             isPlaying = !isPlaying;
-            Trail.SetAllTrails(true, false);
+
             EditorManager.instance.songInformation.songTime = audioSource.time;
-            if (isPlaying) audioSource.Play();
+            if (isPlaying)
+            {
+                Trail.FreezeAllTrails(!isPlaying);
+                audioSource.Play();
+            }
             else PauseMusic();
         }
         public IEnumerator PlayBackMusic()
@@ -48,15 +52,14 @@ namespace Ichni.Editor
         public void PauseMusic()
         {
             isPlaying = false;
-            Trail.SetAllTrails(false, false);
             EditorManager.instance.songInformation.songTime = audioSource.time;
             audioSource.Pause();
+            Trail.FreezeAllTrails(!isPlaying);
         }
 
         public void StopMusic()
         {
             isPlaying = false;
-            Trail.SetAllTrails(false, true);
             EditorManager.instance.songInformation.songTime = 0;
             audioSource.Stop();
             EditorManager.instance.uiManager.timeline.timePointerModule.SetRange(0);