CYapfFollowShipT< Types > Class Template Reference

Node Follower module of YAPF for ships. More...

Public Types
typedef Types::Tpf	Tpf
	the pathfinder class (derived from THIS class).
typedef Types::TrackFollower	TrackFollower
typedef Types::NodeList::Item	Node
	this will be our node type.
typedef Node::Key	Key
	key to hash tables.

Public Member Functions
void	PfFollowNode (Node &old_node)
	Called by YAPF to move from the given node to the next tile. More...
void	RestrictSearch (const std::vector< WaterRegionPatchDesc > &path)
	Restricts the search by creating corridor or water regions through which the ship is allowed to travel.
char	TransportTypeChar () const
	Return debug report character to identify the transportation type.

Static Public Member Functions
static Trackdir	GetRandomTrackdir (TrackdirBits trackdirs)
	Returns a random trackdir out of a set of trackdirs.
static std::pair< TileIndex, Trackdir >	GetRandomFollowUpTileTrackdir (const Ship *v, TileIndex tile, Trackdir dir)
	Returns a random tile/trackdir that can be reached from the current tile/trackdir, or tile/INVALID_TRACK if none is available.
static Trackdir	CreateRandomPath (const Ship *v, ShipPathCache &path_cache, int path_length)
	Creates a random path, avoids 90 degree turns.
static Trackdir	ChooseShipTrack (const Ship *v, TileIndex tile, TrackdirBits forward_dirs, TrackdirBits reverse_dirs, bool &path_found, ShipPathCache &path_cache, Trackdir &best_origin_dir)
static bool	CheckShipReverse (const Ship *v, Trackdir *trackdir)
	Check whether a ship should reverse to reach its destination. More...

Protected Member Functions
Tpf &	Yapf ()
	to access inherited path finder

Protected Attributes
std::vector< WaterRegionDesc >	water_region_corridor

Detailed Description

template<class Types>
class CYapfFollowShipT< Types >

Node Follower module of YAPF for ships.

Definition at line 126 of file yapf_ship.cpp.

Member Function Documentation

CheckShipReverse()

template<class Types >

static bool CYapfFollowShipT< Types >::CheckShipReverse ( const Ship *  v, Trackdir *  trackdir  )

inlinestatic

Check whether a ship should reverse to reach its destination.

Called when leaving depot.

Parameters

v	Ship.
trackdir	[out] the best of all possible reversed trackdirs.

Returns

true if the reverse direction is better.

Definition at line 303 of file yapf_ship.cpp.

References DiagdirReachesTrackdirs(), Vehicle::direction, CYapfFollowShipT< Types >::GetRandomTrackdir(), GetTileTrackStatus(), Ship::GetVehicleTrackdir(), INVALID_TRACKDIR, ReverseDiagDir(), ReverseTrackdir(), Ship::state, Vehicle::tile, TRACKDIR_BIT_NONE, TrackdirToTrackdirBits(), TrackStatusToTrackdirBits(), TRANSPORT_WATER, and VehicleExitDir().

PfFollowNode()

template<class Types >

void CYapfFollowShipT< Types >::PfFollowNode ( Node &  old_node )

inline

Called by YAPF to move from the given node to the next tile.

For each reachable trackdir on the new tile creates new node, initializes it and adds it to the open list by calling Yapf().AddNewNode(n)

Definition at line 149 of file yapf_ship.cpp.

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The documentation for this class was generated from the following file:

• src/pathfinder/yapf/yapf_ship.cpp