allow summon to work with visual thinkers

src/d_net.cpp

@@ -2378,7 +2378,6 @@ void Net_DoCommand (int type, uint8_t **stream, int player)
 	case DEM_SUMMONFRIEND2:
 	case DEM_SUMMONFOE2:
 		{
-			PClassActor *typeinfo;
 			int angle = 0;
 			int16_t tid = 0;
 			uint8_t special = 0;
@@ -2393,11 +2392,11 @@ void Net_DoCommand (int type, uint8_t **stream, int player)
 				for(i = 0; i < 5; i++) args[i] = ReadInt32(stream);
 			}
 
-			typeinfo = PClass::FindActor(s);
-			if (typeinfo != NULL)
+			AActor *source = players[player].mo;
+			if(source != NULL)
 			{
-				AActor *source = players[player].mo;
-				if (source != NULL)
+				PClassActor * typeinfo = PClass::FindActor(s);
+				if (typeinfo != NULL)
 				{
 					if (GetDefaultByType (typeinfo)->flags & MF_MISSILE)
 					{
@@ -2443,6 +2442,20 @@ void Net_DoCommand (int type, uint8_t **stream, int player)
 						}
 					}
 				}
+				else
+				{ // not an actor, must be a visualthinker
+					PClass * typeinfo = PClass::FindClass(s);
+					if(typeinfo && typeinfo->IsDescendantOf("VisualThinker"))
+					{
+						DVector3 spawnpos = source->Vec3Angle(source->radius * 4, source->Angles.Yaw, 8.);
+						auto vt = DVisualThinker::NewVisualThinker(source->Level, typeinfo);
+						if(vt)
+						{
+							vt->PT.Pos = spawnpos;
+							vt->UpdateSector();
+						}
+					}
+				}
 			}
 		}
 		break;

src/gamedata/info.cpp

@@ -55,6 +55,7 @@
 #include "texturemanager.h"
 #include "d_main.h"
 #include "maps.h"
+#include "p_visualthinker.h"
 
 extern void LoadActors ();
 extern void InitBotStuff();
@@ -779,11 +780,15 @@ static void SummonActor (int command, int command2, FCommandLine argv)
 
 	if (argv.argc() > 1)
 	{
-		PClassActor *type = PClass::FindActor(argv[1]);
+		PClass *type = PClass::FindActor(argv[1]);
 		if (type == nullptr)
 		{
-			Printf ("Unknown actor '%s'\n", argv[1]);
-			return;
+			type = PClass::FindClass(argv[1]);
+			if(!type || !type->IsDescendantOf("VisualThinker"))
+			{
+				Printf ("Unknown actor or visual thinker '%s'\n", argv[1]);
+				return;
+			}
 		}
 		Net_WriteInt8 (argv.argc() > 2 ? command2 : command);
 		Net_WriteString (type->TypeName.GetChars());