Add Travelled virtual for PlayerPawn, akin to the same function for Inventory. (#1169)

src/g_level.cpp

@@ -1564,6 +1564,12 @@ int FLevelLocals::FinishTravel ()
 		{
 			pawn->Speed = pawn->GetDefault()->Speed;
 		}
+
+		IFVIRTUALPTRNAME(pawn, NAME_PlayerPawn, Travelled)
+		{
+			VMValue params[1] = { pawn };
+			VMCall(func, params, 1, nullptr, 0);
+		}
 		// [ZZ] we probably don't want to fire any scripts before all players are in, especially with runNow = true.
 		pawns[pawnsnum++] = pawn;
 	}

wadsrc/static/zscript/actors/player/player.zs

@@ -2432,6 +2432,18 @@ class PlayerPawn : Actor
 		return wasdrowning;
 	}
 
+	//===========================================================================
+	//
+	// PlayerPawn :: Travelled
+	//
+	// Called when the player moves to another map, in case it needs to do
+	// special reinitialization. This is called after all carried items have
+	// executed their respective Travelled() virtuals too.
+	//
+	//===========================================================================
+
+	virtual void Travelled() {}
+
 	//----------------------------------------------------------------------------
 	//
 	//