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Fix #7142: Missing map bounds check when building long roads.

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Peter Nelson 2019-01-30 09:20:07 +00:00 committed by PeterN
parent 8334a57332
commit e982b9131e
1 changed files with 3 additions and 1 deletions
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4
src/road_cmd.cpp
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@ -809,7 +809,9 @@ do_clear:;
*/ */
static bool CanConnectToRoad(TileIndex tile, RoadType rt, DiagDirection dir) static bool CanConnectToRoad(TileIndex tile, RoadType rt, DiagDirection dir)
{ {
RoadBits bits = GetAnyRoadBits(tile + TileOffsByDiagDir(dir), rt, false); tile += TileOffsByDiagDir(dir);
if (!IsValidTile(tile)) return false;
RoadBits bits = GetAnyRoadBits(tile, rt, false);
return (bits & DiagDirToRoadBits(ReverseDiagDir(dir))) != 0; return (bits & DiagDirToRoadBits(ReverseDiagDir(dir))) != 0;
} }