### - r -

- RailBuildCost() : rail.h
- RailConvertCost() : rail.h
- RailToolbar_CtrlChanged() : rail_gui.cpp
- RailVehicleChangeInfo() : newgrf.cpp
- RailVehicleLengthChanged() : train_cmd.cpp
- RandomDiagDir() : town_cmd.cpp
- RandomHeight() : tgp.cpp
- RandomPlayerFaceBits() : player_face.h
- RandomTileSeed() : map_func.h
- ReadByte() : oldloader.cpp
- ReadByteFromFile() : oldloader.cpp
- ReadHeightMap() : heightmap.cpp
- ReadHeightmapBMP() : heightmap.cpp
- ReadHeightmapBMPImageData() : heightmap.cpp
- ReadSpriteHeaderSkipData() : spritecache.cpp
- ReadValue() : saveload.cpp , saveload.h
- ReadyForNextItem() : news_gui.cpp
- ReallocError() : alloc_func.cpp , alloc_func.hpp
- ReallocT() : alloc_func.hpp
- RebuildStationLists() : station_gui.cpp , station_gui.h
- RedrawWaypointSign() : waypoint.cpp
- ReferenceToInt() : saveload.cpp
- ReloadNewGRFData() : newgrf.h , openttd.cpp
- RemapNewGRFStringControlCode() : newgrf_text.cpp , newgrf_text.h
- RemapOldStringID() : functions.h , strings.cpp
- RemoveAllEngineReplacement() : autoreplace_func.h , engine.cpp
- RemoveAllEngineReplacementForPlayer() : autoreplace_func.h
- RemoveDuplicatesFromGRFConfigList() : newgrf_config.cpp
- RemoveEngineReplacement() : autoreplace_func.h , engine.cpp
- RemoveEngineReplacementForPlayer() : autoreplace_func.h
- RemoveFirstTrack() : track_func.h
- RemoveFirstTrackdir() : track_func.h
- RemoveHalftileSlope() : slope_func.h
- RemoveOrderFromAllVehicles() : order.h , order_cmd.cpp
- RemoveRoad() : road_cmd.cpp
- RemoveRoadStop() : station_cmd.cpp
- RemoveSharedOrderVehicleList() : order_cmd.cpp
- RemoveTrainWaypoint() : waypoint.cpp , waypoint.h
- RemoveVehicleFromGroup() : group.h , group_cmd.cpp
- ReportNewsProductionChangeIndustry() : industry_cmd.cpp
- ResetBridges() : bridge.h , tunnelbridge_cmd.cpp
- ResetCurrencies() : currency.h , currency.cpp
- ResetIndustries() : industry.h , industry_cmd.cpp
- ResetIndustryConstructionStage() : industry_map.h
- ResetIndustryCounts() : industry.h
- ResetLandscapeConfirmationCallback() : terraform_gui.cpp
- ResetNewGRFData() : newgrf.cpp
- ResetPlayerLivery() : players.cpp , livery.h
- ResetPriceBaseMultipliers() : economy.cpp , economy_func.h
- ResetRestoreAllTransparency() : transparency.h
- ResetSets() : signal.cpp
- ResetStationClasses() : newgrf_station.cpp , newgrf_station.h
- ResizeButtons() : window_gui.h , widget.cpp
- ResizeWindow() : window_gui.h , window.cpp , window_func.h
- ResizeWindowForWidget() : window_gui.h , widget.cpp
- ResortStationLists() : station_gui.cpp , station_gui.h
- RestoreVehicleOrders() : order_cmd.cpp , order.h
- ReverseDiagDir() : direction_func.h
- ReverseDir() : direction_func.h
- ReverseTrackdir() : track_func.h
- ReverseTrainDirection() : train_cmd.cpp
- RGBToGrayscale() : heightmap.cpp
- RoadFindPathToDest() : roadveh_cmd.cpp
- RoadToolbar_CtrlChanged() : road_gui.cpp
- RoadTypeToRoadTypes() : road_func.h
- RoadVehicleChangeInfo() : newgrf.cpp
- ROL() : bitmath_func.hpp
- ROR() : bitmath_func.hpp
- RotateRight() : newgrf_spritegroup.cpp
- RotateRoadBits() : road_func.h
- RunVehicleDayProc() : date.cpp