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(svn r23705) -Codechange: cache the last processed station in FindStationsAroundTiles() in order to make the code a bit faster

This commit is contained in:
smatz 2012-01-01 17:32:45 +00:00
parent 4af8c2d5e1
commit a90b767995
1 changed files with 8 additions and 1 deletions
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9
src/station_cmd.cpp
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@ -3407,12 +3407,19 @@ void FindStationsAroundTiles(const TileArea &location, StationList *stations)
if (max_x >= MapSizeX()) max_x = MapSizeX() - 1;
if (max_y >= MapSizeY()) max_y = MapSizeY() - 1;
StationID last = INVALID_STATION;
for (uint cy = min_y; cy < max_y; cy++) {
for (uint cx = min_x; cx < max_x; cx++) {
TileIndex cur_tile = TileXY(cx, cy);
if (!IsTileType(cur_tile, MP_STATION)) continue;
Station *st = Station::GetByTile(cur_tile);
StationID sid = GetStationIndex(cur_tile);
/* Stop early if we met the same station again. */
if (sid == last) continue;
last = sid;
Station *st = Station::GetIfValid(sid);
/* st can be NULL in case of waypoints */
if (st == NULL) continue;