(svn r1696) Use GetTileSlope() instead of FindLandscapeHeightByTile() where it is sufficient. FindLandscapeHeightByTile() uses GetTileSlope() internally and adds some more info, which is discarded in these cases.
While touching the code make a bit more clear how GetBridgeHeight() works.
#ifndef SIGNS_H
#define SIGNS_H
typedef struct SignStruct {
StringID str;
ViewportSign sign;
int32 x;
int32 y;
byte z;
byte owner; // placed by this player. Anyone can delete them though.
// OWNER_NONE for gray signs from old games.
uint16 index;
} SignStruct;
VARDEF SignStruct _sign_list[40];
VARDEF uint _sign_size;
static inline SignStruct *GetSign(uint index)
{
assert(index < _sign_size);
return &_sign_list[index];
}
#define FOR_ALL_SIGNS(s) for(s = _sign_list; s != &_sign_list[_sign_size]; s++)
VARDEF SignStruct *_new_sign_struct;
void UpdateAllSignVirtCoords(void);
void PlaceProc_Sign(uint tile);
/* misc.c */
void ShowRenameSignWindow(SignStruct *ss);
#endif /* SIGNS_H */