Removed frame number stuff from SetEntityModel since it's not producing the correct values. Correctly detect non-world brush models and sprites, although they're not implemented yet.

Assets/Scripts/Game/Entity.cs

@@ -34,6 +34,12 @@ public class Entity
         Object.Destroy(gameObject);
     }
 
+    public void ClearModel()
+    {
+        aliasModel = null;
+        meshRenderer.sharedMesh = null;
+    }
+
     public void SetAliasModel(AliasModel model)
     {
         aliasModel = model;

Assets/Scripts/Game/GameState.cs

@@ -69,6 +69,14 @@ public class GameState
         }
     }
 
+    public void ClearEntityModel(int entityNum)
+    {
+        if (entities.TryGetValue(entityNum, out var entity))
+        {
+            entity.ClearModel();
+        }
+    }
+
     public void SetEntityAliasModel(int entityNum, string modelName)
     {
         if (!entities.TryGetValue(entityNum, out var entity))
@@ -79,7 +87,7 @@ public class GameState
 
         if (!uq.GameAssets.TryGetAliasModel(modelName, out var aliasModel))
         {
-            Debug.LogWarning($"Unknown alias model name: {aliasModel}");
+            Debug.LogWarning($"Unknown alias model name: {modelName}");
             return;
         }
         

Assets/Scripts/Modules/GameModule.Interop.cs

@@ -35,12 +35,12 @@ public partial class GameModule : CallbackHandler<GameModule>
     }
 
     [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-    private delegate void GameSetEntityModelCallback(IntPtr target, int entityNum, [MarshalAs(UnmanagedType.LPStr)] string modelName, int frame);
+    private delegate void GameSetEntityModelCallback(IntPtr target, int entityNum, [MarshalAs(UnmanagedType.LPStr)] string modelName);
 
     [MonoPInvokeCallback(typeof(GameSetEntityModelCallback))]
-    private static void Callback_GameSetEntityModel(IntPtr target, int entityNum, string modelName, int frame)
+    private static void Callback_GameSetEntityModel(IntPtr target, int entityNum, string modelName)
     {
-        GetSelf(target).SetEntityModel(entityNum, modelName, frame);
+        GetSelf(target).SetEntityModel(entityNum, modelName);
     }
 
     [UnmanagedFunctionPointer(CallingConvention.Cdecl)]

Assets/Scripts/Modules/GameModule.cs

@@ -12,10 +12,14 @@ public partial class GameModule
         BuildCallbacks();
     }
     
-    private void SetEntityModel(int entityNum, string modelName, int frame)
+    private void SetEntityModel(int entityNum, string modelName)
     {
-        if (modelName != null)
+        if (string.IsNullOrEmpty(modelName))
         {
+            uq.GameState.ClearEntityModel(entityNum);
+            return;
+        }
+        
         if (modelName.StartsWith("*"))
         {
             if (!int.TryParse(modelName.Substring(1), out int subModelNum))
@@ -28,11 +32,21 @@ public partial class GameModule
             return;
         }
 
-            // TODO: identify non-world brush model names
-            uq.GameState.SetEntityAliasModel(entityNum, modelName);
+        if (modelName.EndsWith(".bsp"))
+        {
+            // TODO: non-world brush model
+            uq.GameState.ClearEntityModel(entityNum);
+            return;
         }
 
-        uq.GameState.UpdateEntityAnimation(entityNum, frame);
+        if (modelName.EndsWith(".spr"))
+        {
+            // TODO: sprite
+            uq.GameState.ClearEntityModel(entityNum);
+            return;
+        }
+        
+        uq.GameState.SetEntityAliasModel(entityNum, modelName);
     }
     
     private void SetEntityTransform(int entityNum, QVec3 origin, QVec3 angles)

engine/Quake/cl_parse.c

@@ -618,12 +618,7 @@ void CL_ParseUpdate (int bits)
 
 		ent->lerpflags |= LERP_RESETANIM; //johnfitz -- don't lerp animation across model changes
 
-		UQ_Game_SetEntityModel(num, model->name, ent->frame);
-	}
-	else
-	{
-		// Model hasn't changed, just update the animation info
-		UQ_Game_SetEntityModel(num, NULL, ent->frame);
+		UQ_Game_SetEntityModel(num, model ? model->name : NULL);
 	}
 	//johnfitz
 

engine/Quake/client.h

@@ -372,7 +372,7 @@ void TraceLine (vec3_t start, vec3_t end, vec3_t impact);
 void Chase_UpdateForClient (void);	//johnfitz
 void Chase_UpdateForDrawing (void);	//johnfitz
 
-void UQ_Game_SetEntityModel(int entityNum, const char *modelName, int frame);
+void UQ_Game_SetEntityModel(int entityNum, const char *modelName);
 void UQ_Game_SetEntityTransform(int entityNum, vec3_t origin, vec3_t angles);
 void UQ_Game_RemoveEntity(int entityNum);
 

engine/UniQuake/game_uniquake.c

@@ -6,16 +6,16 @@ typedef struct unity_gamecalls_s
 {
 	void *target;
 
-	void(*SetEntityModel)(void *target, int entityNum, const char *modelName, int frame);
+	void(*SetEntityModel)(void *target, int entityNum, const char *modelName);
 	void(*SetEntityTransform)(void *target, int entityNum, vec3_t origin, vec3_t angles);
 	void(*RemoveEntity)(void *target, int entityNum);
 } unity_gamecalls_t;
 
 const unity_gamecalls_t *unity_gamecalls;
 
-void UQ_Game_SetEntityModel(int entityNum, const char *modelName, int frame)
+void UQ_Game_SetEntityModel(int entityNum, const char *modelName)
 {
-	unity_gamecalls->SetEntityModel(unity_gamecalls->target, entityNum, modelName, frame);
+	unity_gamecalls->SetEntityModel(unity_gamecalls->target, entityNum, modelName);
 }
 
 void UQ_Game_SetEntityTransform(int entityNum, vec3_t origin, vec3_t angles)