Add OnLastUpdate Callback to API

Core/RenderManager.cs

@@ -48,6 +48,9 @@ internal static class RenderContext
     };
     public static Action<RenderResult> OnComplete = OnCompleteDefault;
 
+    private static readonly Action OnLastUpdateDefault = () => { };
+    public static Action OnLastUpdate = OnLastUpdateDefault;
+
     public static void Reset()
     {
         Auto = true;
@@ -58,6 +61,7 @@ internal static class RenderContext
             
         EndCondition = EndConditionDefault;
         OnComplete = OnCompleteDefault;
+        OnLastUpdate = OnLastUpdateDefault;
     }
 }
     
@@ -270,7 +274,7 @@ internal class RenderManager : MonoBehaviour
         }
     }
 
-    public void OnPreRenderUpdate()
+    public void OnPreUpdate()
     {
         if (!IsRendering) return;
 
@@ -331,6 +335,8 @@ internal class RenderManager : MonoBehaviour
         {
             floor.holdRenderer.m_meshRenderer.enabled = false;
         }
+
+        TriggerOnLastUpdate();
     }
 
     // ReSharper disable once Unity.IncorrectMethodSignature
@@ -867,6 +873,18 @@ internal class RenderManager : MonoBehaviour
             Melon<RenderMod>.Logger.Error($"OnComplete callback caused error: {err}");
         }
     }
+    
+    private static void TriggerOnLastUpdate()
+    {
+        try
+        {
+            RenderContext.OnLastUpdate.Invoke();
+        }
+        catch (Exception err)
+        {
+            Melon<RenderMod>.Logger.Error($"OnLastUpdate callback caused error: {err}");
+        }
+    }
 
     private static readonly Dictionary<Codec, AVCodecID> AudioCodecMatch = new()
     {