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| author | truebrain <truebrain@openttd.org> | 2012-01-01 16:01:51 +0000 |
|---|---|---|
| committer | truebrain <truebrain@openttd.org> | 2012-01-01 16:01:51 +0000 |
| commit | 6f6035ce0ba88efe5a67da14f71cba54978ab471 (patch) | |
| tree | ee8184c7107fcc89fba4f40cfcdf2e06eaafeacc /src/map.cpp | |
| parent | 39f2d75e0315d42472ba645fbfdd40a350e69e54 (diff) | |
| download | openttd-6f6035ce0ba88efe5a67da14f71cba54978ab471.tar.xz | |
(svn r23701) -Codechange: give TileAddWrap() a 27% speed-up, by swapping entries in an if() statement, and reusing already calculated values (tnx to SmatZ for the ideas)
Diffstat (limited to 'src/map.cpp')
| -rw-r--r-- | src/map.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/map.cpp b/src/map.cpp index 2de65ed84..823ff6d2d 100644 --- a/src/map.cpp +++ b/src/map.cpp @@ -117,12 +117,12 @@ TileIndex TileAddWrap(TileIndex tile, int addx, int addy) uint y = TileY(tile) + addy; /* Disallow void tiles at the north border. */ - if (_settings_game.construction.freeform_edges && (x == 0 || y == 0)) return INVALID_TILE; + if ((x == 0 || y == 0) && _settings_game.construction.freeform_edges) return INVALID_TILE; /* Are we about to wrap? */ - if (x < MapMaxX() && y < MapMaxY()) return tile + TileDiffXY(addx, addy); + if (x >= MapMaxX() || y >= MapMaxY()) return INVALID_TILE; - return INVALID_TILE; + return TileXY(x, y); } /** 'Lookup table' for tile offsets given a DiagDirection */ |