feat: rewrite 3D step undo using an exact ActionHistory stack

Assets/Scripts/Interaction/ChanraoTuibuHandler.cs

@@ -64,6 +64,7 @@ public class ChanraoTuibuHandler : MonoBehaviour
     public void PerformClick()
     {
         Debug.Log($"[ChanraoTuibu] {name} 被点击");
+        ActionHistory.Push(ActionHistory.ActionType.ChanraoTuibu, this);
         _isBlinking = false;
         StopAllCoroutines();
         if (_outlineMesh != null) _outlineMesh.enabled = false;
@@ -88,10 +89,12 @@ public class ChanraoTuibuHandler : MonoBehaviour
 
     public void ResetState()
     {
+        _isBlinking = true;
         var mr = GetComponent<MeshRenderer>(); if (mr != null) mr.enabled = false;
         var smr = GetComponent<SkinnedMeshRenderer>(); if (smr != null) smr.enabled = false;
         foreach (var r in GetComponentsInChildren<Renderer>(true)) { if (_outlineMesh != null && r == _outlineMesh) continue; r.enabled = false; }
         if (_outlineMesh != null) _outlineMesh.enabled = true;
+        if (nextObject != null) nextObject.SetActive(false);
         StopAllCoroutines();
         StartCoroutine(BlinkOutline());
     }

Assets/Scripts/Interaction/PingClickHandler.cs

@@ -69,6 +69,7 @@ public class PingClickHandler : MonoBehaviour
         {
             _modelShown = true;
             _isBlinking = false;
+            ActionHistory.Push(ActionHistory.ActionType.PingFirst, this);
             StopAllCoroutines();
             if (_modelRenderer != null) _modelRenderer.enabled = true;
             foreach (var r in GetComponentsInChildren<Renderer>(true)) r.enabled = true;
@@ -92,7 +93,8 @@ public class PingClickHandler : MonoBehaviour
         else
         {
             if (chanraoObject != null) { chanraoObject.SetActive(true); Debug.Log($"[PingClick] {name} → {chanraoObject.name}"); }
-            gameObject.SetActive(false);
+            HideSelf();
+            ActionHistory.Push(ActionHistory.ActionType.PingSecond, this);
             var sm = FindObjectOfType<StepManager>();
             if (sm != null) sm.RecordPingStep(pingIndex, true);
             
@@ -123,15 +125,26 @@ public class PingClickHandler : MonoBehaviour
     public void ReEnableBorder() { _isBlinking = true; if (_outlineMesh != null) { _outlineMesh.enabled = true; StopAllCoroutines(); StartCoroutine(BlinkOutline()); } }
     public void UndoSecondClick() 
     { 
-        gameObject.SetActive(true); 
+        ShowSelf();
         _modelShown = true; 
         _isBlinking = false;
-        if (_modelRenderer != null) _modelRenderer.enabled = true; 
-        foreach (var r in GetComponentsInChildren<Renderer>(true)) r.enabled = true; 
-        if (_outlineMesh != null) _outlineMesh.enabled = false; 
+    }
+    public void UndoShow() { HideSelf(); }
+
+    private void HideSelf()
+    {
+        foreach (var r in GetComponentsInChildren<Renderer>(true)) r.enabled = false;
+        var col = GetComponent<Collider>(); if (col != null) col.enabled = false;
+        _isBlinking = false;
         StopAllCoroutines();
     }
-    public void UndoShow() { gameObject.SetActive(false); }
+
+    private void ShowSelf()
+    {
+        foreach (var r in GetComponentsInChildren<Renderer>(true)) r.enabled = true;
+        if (_outlineMesh != null) _outlineMesh.enabled = false;
+        var col = GetComponent<Collider>(); if (col != null) col.enabled = true;
+    }
     
     public void ResetState()
     {

Assets/Scripts/Interaction/ShoseClickHandler.cs

@@ -79,6 +79,7 @@ public class ShoseClickHandler : MonoBehaviour
         if (_clicked) return;
         _clicked = true;
         Debug.Log("[ShoseClick] ★ 被点击 ★");
+        ActionHistory.Push(ActionHistory.ActionType.Shose, this);
         StopAllCoroutines();
         if (_outlineMesh != null) _outlineMesh.enabled = false;
         if (targetPoint != null) { transform.position = targetPoint.position; transform.rotation = targetPoint.rotation; }
@@ -157,6 +158,8 @@ public class ShoseClickHandler : MonoBehaviour
             transform.rotation = _initialRotation;
         }
         
+        if (nextObject != null) nextObject.SetActive(false);
+
         StopAllCoroutines();
         StartCoroutine(BlinkOutline());
     }

Assets/Scripts/Interaction/TouchPositionHandler.cs

@@ -83,6 +83,7 @@ public class TouchPositionHandler : MonoBehaviour
         int stepIndex = transform.GetSiblingIndex() + 1;
         var sm = FindObjectOfType<StepManager>();
         if (sm != null) sm.RecordWomanStep(stepIndex);
+        ActionHistory.Push(ActionHistory.ActionType.Woman, this);
 
         // point1 点击后先激活 Shose
         if (stepIndex == 1)