(svn r9943) -Fix [FS#806]: building roads/trams did take notice of the foundation of the opposite roadtype.
--- a/src/road_cmd.cpp Sat May 26 20:52:23 2007 +0000
+++ b/src/road_cmd.cpp Sat May 26 21:00:48 2007 +0000
@@ -434,7 +434,7 @@
cost += ret;
}
- ret = CheckRoadSlope(tileh, &pieces, existing);
+ ret = CheckRoadSlope(tileh, &pieces, (IsTileType(tile, MP_STREET) ? GetAllRoadBits(tile) : ROAD_NONE) | existing);
/* Return an error if we need to build a foundation (ret != 0) but the
* current patch-setting is turned off (or stupid AI@work) */
if (CmdFailed(ret) || (ret != 0 && (!_patches.build_on_slopes || _is_old_ai_player)))