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Location: cpp/openttd-patchpack/source/src/pathfind.h - annotation
r7437:f62a4feca046
2.0 KiB
text/x-c
(svn r10877) -Fix: some isocodes were wrong
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/** @file pathfind.h */
#ifndef PATHFIND_H
#define PATHFIND_H
#include "direction.h"
#include "openttd.h"
enum {
STR_FACTOR = 2,
DIAG_FACTOR = 3
};
//#define PF_BENCH // perform simple benchmarks on the train pathfinder (not
//supported on all archs)
struct TrackPathFinder;
typedef bool TPFEnumProc(TileIndex tile, void *data, Trackdir trackdir, uint length, byte *state);
typedef void TPFAfterProc(TrackPathFinder *tpf);
typedef bool NTPEnumProc(TileIndex tile, void *data, int track, uint length);
#define PATHFIND_GET_LINK_OFFS(tpf, link) ((byte*)(link) - (byte*)tpf->links)
#define PATHFIND_GET_LINK_PTR(tpf, link_offs) (TrackPathFinderLink*)((byte*)tpf->links + (link_offs))
/* y7 y6 y5 y4 y3 y2 y1 y0 x7 x6 x5 x4 x3 x2 x1 x0
* y7 y6 y5 y4 y3 y2 y1 y0 x4 x3 x2 x1 x0 0 0 0
* 0 0 y7 y6 y5 y4 y3 y2 y1 y0 x4 x3 x2 x1 x0 0
* 0 0 0 0 y5 y4 y3 y2 y1 y0 x4 x3 x2 x1 x0 0
*/
#define PATHFIND_HASH_TILE(tile) (TileX(tile) & 0x1F) + ((TileY(tile) & 0x1F) << 5)
struct TrackPathFinderLink {
TileIndex tile;
uint16 flags;
uint16 next;
};
struct RememberData {
uint16 cur_length;
byte depth;
byte pft_var6;
};
struct TrackPathFinder {
int num_links_left;
TrackPathFinderLink *new_link;
TPFEnumProc *enum_proc;
void *userdata;
RememberData rd;
TrackdirByte the_dir;
TransportTypeByte tracktype;
uint sub_type;
byte var2;
bool disable_tile_hash;
bool hasbit_13;
uint16 hash_head[0x400];
TileIndex hash_tile[0x400]; ///< stores the link index when multi link.
TrackPathFinderLink links[0x400]; ///< hopefully, this is enough.
};
void FollowTrack(TileIndex tile, uint16 flags, uint sub_type, DiagDirection direction, TPFEnumProc* enum_proc, TPFAfterProc* after_proc, void* data);
struct FindLengthOfTunnelResult {
TileIndex tile;
int length;
};
FindLengthOfTunnelResult FindLengthOfTunnel(TileIndex tile, DiagDirection direction);
void NewTrainPathfind(TileIndex tile, TileIndex dest, RailTypeMask railtypes, DiagDirection direction, NTPEnumProc* enum_proc, void* data);
#endif /* PATHFIND_H */
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