mirror of https://github.com/OpenTTD/OpenTTD
(svn r15295) -Fix [FS#2591] (r15190): Towns tried to build roads outside the map.
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@ -26,6 +26,7 @@ bool IsPossibleCrossing(const TileIndex tile, Axis ax)
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RoadBits CleanUpRoadBits(const TileIndex tile, RoadBits org_rb)
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{
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if (!IsValidTile(tile)) return ROAD_NONE;
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for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
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const TileIndex neighbor_tile = TileAddByDiagDir(tile, dir);
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