Here is a list of all documented functions, variables, defines, enums, and typedefs with links to the documentation:

### - a -

- A2H : tgp.cpp
- A2I : tgp.cpp
- AB() : bitmath_func.hpp
- AbortGeneratingWorld() : genworld.cpp , genworld.h
- AbortSaveLoad() : saveload.cpp
- abs() : math_func.hpp
- ActivateOldShore() : newgrf.cpp
- AddAnimatedTile() : functions.h , texteff.cpp
- AddChangedStorage() : newgrf_storage.cpp , newgrf_storage.h
- AddChildSpriteScreen() : viewport.cpp , viewport_func.h
- AddChildSpriteToFoundation() : viewport.cpp
- AddClearCounter() : clear_map.h
- AddClearDensity() : clear_map.h
- AddCombinedSprite() : viewport.cpp
- AddEngineReplacement() : autoreplace_func.h , engine.cpp
- AddEngineReplacementForPlayer() : autoreplace_func.h
- AddGRFString() : newgrf_text.cpp , newgrf_text.h
- AddNewsItem() : news.h , news_gui.cpp
- AddRemoveEngineFromAutoreplaceAndBuildWindows() : autoreplace_gui.cpp , autoreplace_gui.h
- AddSideToSignalBuffer() : signal.cpp , signal_func.h
- AddSortableSpriteToDraw() : viewport.cpp , viewport_func.h
- AddTileIndexDiffCWrap() : map_func.h
- AddTrackToSignalBuffer() : signal.cpp , signal_func.h
- AddTreeCount() : tree_map.h
- AddTreeCounter() : tree_map.h
- AddTreeGrowth() : tree_map.h
- AdjustTileh() : elrail.cpp
- AdvanceWagonsAfterSwap() : train_cmd.cpp
- AdvanceWagonsBeforeSwap() : train_cmd.cpp
- AffectSpeedByDirChange() : train_cmd.cpp
- AffectSpeedByZChange() : train_cmd.cpp
- AfterLoadVehicles() : vehicle.cpp , vehicle_base.h
- AfterLoadWaypoints() : waypoint.cpp , waypoint.h
- AIR_AIRCRAFT : aircraft.h
- AIR_CTOL : engine.h
- AIR_HELICOPTER : aircraft.h
- AIR_ROTOR : aircraft.h
- AIR_SHADOW : aircraft.h
- AircraftController() : aircraft_cmd.cpp
- AircraftDefaultCargoCapacity() : aircraft.h , aircraft_cmd.cpp
- AircraftEntersTerminal() : aircraft_cmd.cpp
- AircraftEventHandler_AtTerminal() : aircraft_cmd.cpp
- AircraftEventHandler_InHangar() : aircraft_cmd.cpp
- AircraftGetEntryPoint() : aircraft_cmd.cpp
- AircraftNextAirportPos_and_Order() : aircraft_cmd.cpp
- AircraftSpeedLimits : aircraft_cmd.cpp
- AircraftSubType : aircraft.h
- AirportGetNofElements() : airport.cpp
- AirportSetBlocks() : aircraft_cmd.cpp
- Align() : math_func.hpp
- AllocateMap() : map.cpp , map_func.h
- AllocateSpecToStation() : newgrf_station.cpp , newgrf_station.h
- AllocateStationClass() : newgrf_station.cpp , newgrf_station.h
- AllocateWindow() : window_gui.h , window.cpp
- AllocateWindowDesc() : window.cpp , window_gui.h
- AllocateWindowDescFront() : window.cpp , window_gui.h
- AllocHeightMap() : tgp.cpp
- AllowedPPPonPCP : elrail_data.h
- AlwaysDrawUnpavedRoads() : road_cmd.cpp
- amplitude_t : tgp.cpp
- ANIM_CURSOR_END : animcursors.h
- ANIM_CURSOR_LINE : animcursors.h
- AnimateAnimatedTiles() : functions.h , texteff.cpp
- AnimateTile_Town() : town_cmd.cpp
- ANIMCURSOR_BUILDSIGNALS : sprites.h
- ANIMCURSOR_DEMOLISH : sprites.h
- ANIMCURSOR_LOWERLAND : sprites.h
- ANIMCURSOR_PICKSTATION : sprites.h
- ANIMCURSOR_RAISELAND : sprites.h
- AnimCursors : sprites.h
- AppendPathSeparator() : fileio.cpp , fileio.h
- AppendStaticGRFConfigs() : newgrf_config.h , newgrf_config.cpp
- AppendToGRFConfigList() : newgrf_config.cpp , newgrf_config.h
- ApplyFoundationToSlope() : landscape.h
- ApplyNoise() : tgp.cpp
- ArePlayerFaceBitsValid() : player_face.h
- AreValidRoadTypes() : road_func.h
- AskUnsafeUnpauseCallback() : misc_cmd.cpp
- assert_compile() : town_land.h
- AssignOrder() : order.h , order_cmd.cpp
- AssignWidgetToWindow() : window.cpp , window_gui.h
- AUTOSAVE_DIR : fileio.h
- AutoslopeCheckForEntranceEdge() : autoslope.h
- AutoslopeEnabled() : autoslope.h
- AVI : engines.h
- Axis : direction_type.h
- AXIS_END : direction_type.h
- AXIS_X : direction_type.h
- AXIS_Y : direction_type.h
- AxisToDiagDir() : direction_func.h
- AxisToRoadBits() : road_func.h
- AxisToTrack() : track_func.h
- AxisToTrackBits() : track_func.h