/**
* Add side of tile to signal update buffer
*
* @param tile tile where we start
* @param side side of tile
* @param owner owner whose signals we will update
*/
void AddSideToSignalBuffer(TileIndex tile, DiagDirection side, Owner owner)
{
/* do not allow signal updates for two companies in one run */
assert(_globset.IsEmpty() || owner == _last_owner);
_last_owner = owner;
_globset.Add(tile, side);
if (_globset.Items() >= SIG_GLOB_UPDATE) {
/* too many items, force update */
UpdateSignalsInBuffer(_last_owner);
_last_owner = INVALID_OWNER;
}
}
/**
* Add track to signal update buffer
*
* @param tile tile where we start
* @param track track at which ends we will update signals
* @param owner owner whose signals we will update
*/
void AddTrackToSignalBuffer(TileIndex tile, Track track, Owner owner)
{
static const DiagDirection _search_dir_1[] = {
DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_SW, DIAGDIR_SE
};
static const DiagDirection _search_dir_2[] = {
DIAGDIR_SW, DIAGDIR_NW, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NW, DIAGDIR_NE
};
/* do not allow signal updates for two companies in one run */
assert(_globset.IsEmpty() || owner == _last_owner);
_last_owner = owner;
_globset.Add(tile, _search_dir_1[track]);
_globset.Add(tile, _search_dir_2[track]);
if (_globset.Items() >= SIG_GLOB_UPDATE) {
/* too many items, force update */
UpdateSignalsInBuffer(_last_owner);
_last_owner = INVALID_OWNER;
}
}
