OpenTTD Source
20241108-master-g80f628063a
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Track follower helper template class (can serve pathfinders and vehicle controllers). More...
#include <follow_track.hpp>
Public Types | |
enum | ErrorCode { EC_NONE , EC_OWNER , EC_RAIL_ROAD_TYPE , EC_90DEG , EC_NO_WAY , EC_RESERVED } |
Public Member Functions | |
CFollowTrackT (const VehicleType *v=nullptr, RailTypes railtype_override=INVALID_RAILTYPES) | |
CFollowTrackT (Owner o, RailTypes railtype_override=INVALID_RAILTYPES) | |
void | Init (const VehicleType *v, RailTypes railtype_override) |
void | Init (Owner o, RailTypes railtype_override) |
bool | IsTram () |
DiagDirection | GetSingleTramBit (TileIndex tile) |
Tests if a tile is a road tile with a single tramtrack (tram can reverse) | |
bool | Follow (TileIndex old_tile, Trackdir old_td) |
main follower routine. More... | |
bool | MaskReservedTracks () |
int | GetSpeedLimit (int *pmin_speed=nullptr) const |
Helper for pathfinders - get min/max speed on the old_tile/old_td. | |
Static Public Member Functions | |
static debug_inline TransportType | TT () |
static debug_inline bool | IsWaterTT () |
static debug_inline bool | IsRailTT () |
static debug_inline bool | IsRoadTT () |
static bool | Allow90degTurns () |
static bool | DoTrackMasking () |
Data Fields | |
const VehicleType * | veh |
moving vehicle | |
Owner | veh_owner |
owner of the vehicle | |
TileIndex | old_tile |
the origin (vehicle moved from) before move | |
Trackdir | old_td |
the trackdir (the vehicle was on) before move | |
TileIndex | new_tile |
the new tile (the vehicle has entered) | |
TrackdirBits | new_td_bits |
the new set of available trackdirs | |
DiagDirection | exitdir |
exit direction (leaving the old tile) | |
bool | is_tunnel |
last turn passed tunnel | |
bool | is_bridge |
last turn passed bridge ramp | |
bool | is_station |
last turn passed station | |
int | tiles_skipped |
number of skipped tunnel or station tiles | |
ErrorCode | err |
RailTypes | railtypes |
Protected Member Functions | |
void | FollowTileExit () |
Follow the exitdir from old_tile and fill new_tile and tiles_skipped. | |
bool | QueryNewTileTrackStatus () |
stores track status (available trackdirs) for the new tile into new_td_bits | |
bool | CanExitOldTile () |
return true if we can leave old_tile in exitdir | |
bool | CanEnterNewTile () |
return true if we can enter new_tile from exitdir | |
bool | ForcedReverse () |
return true if we must reverse (in depots and single tram bits) | |
bool | TryReverse () |
return true if we successfully reversed at end of road/track | |
Track follower helper template class (can serve pathfinders and vehicle controllers).
See 6 different typedefs below for 3 different transport types w/ or w/o 90-deg turns allowed
Definition at line 28 of file follow_track.hpp.
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inline |
main follower routine.
Fills all members and return true on success. Otherwise returns false if track can't be followed.
Definition at line 121 of file follow_track.hpp.
References CFollowTrackT< Ttr_type_, VehicleType, T90deg_turns_allowed_, Tmask_reserved_tracks >::GetSingleTramBit(), INVALID_DIAGDIR, CFollowTrackT< Ttr_type_, VehicleType, T90deg_turns_allowed_, Tmask_reserved_tracks >::old_td, and CFollowTrackT< Ttr_type_, VehicleType, T90deg_turns_allowed_, Tmask_reserved_tracks >::old_tile.
Referenced by ExtendTrainReservation(), and FollowReservation().