Change: Invalidate ship path caches if pathfinder choice or forbid-90-degree turns are changed.

src/settings.cpp

@@ -1312,6 +1312,15 @@ static bool MaxVehiclesChanged(int32 p1)
 	return true;
 }
 
+static bool InvalidateShipPathCache(int32 p1)
+{
+	Ship *s;
+	FOR_ALL_SHIPS(s) {
+		s->path.clear();
+	}
+	return true;
+}
+
 
 #ifdef ENABLE_NETWORK
 

src/table/settings.ini

@@ -42,6 +42,7 @@ static bool InvalidateCompanyInfrastructureWindow(int32 p1);
 static bool InvalidateCompanyWindow(int32 p1);
 static bool ZoomMinMaxChanged(int32 p1);
 static bool MaxVehiclesChanged(int32 p1);
+static bool InvalidateShipPathCache(int32 p1);
 
 #ifdef ENABLE_NETWORK
 static bool UpdateClientName(int32 p1);
@@ -820,6 +821,7 @@ var      = pf.forbid_90_deg
 def      = false
 str      = STR_CONFIG_SETTING_FORBID_90_DEG
 strhelp  = STR_CONFIG_SETTING_FORBID_90_DEG_HELPTEXT
+proc     = InvalidateShipPathCache
 cat      = SC_EXPERT
 
 [SDT_VAR]
@@ -942,6 +944,7 @@ interval = 1
 str      = STR_CONFIG_SETTING_PATHFINDER_FOR_SHIPS
 strhelp  = STR_CONFIG_SETTING_PATHFINDER_FOR_SHIPS_HELPTEXT
 strval   = STR_CONFIG_SETTING_PATHFINDER_OPF
+proc     = InvalidateShipPathCache
 cat      = SC_EXPERT
 
 [SDT_BOOL]