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(svn r25082) -Codechange [FS#5501]: Simplify some code. (adf88)

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frosch 2013-03-11 18:01:23 +00:00
parent f800c826a8
commit aa2ff3d552
1 changed files with 2 additions and 9 deletions
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11
src/rail_cmd.cpp
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@ -1022,15 +1022,8 @@ CommandCost CmdBuildSingleSignal(TileIndex tile, DoCommandFlag flags, uint32 p1,
CommandCost ret = CheckTileOwnership(tile);
if (ret.Failed()) return ret;
{
/* See if this is a valid track combination for signals, (ie, no overlap) */
TrackBits trackbits = GetTrackBits(tile);
if (KillFirstBit(trackbits) != TRACK_BIT_NONE && // More than one track present
trackbits != TRACK_BIT_HORZ &&
trackbits != TRACK_BIT_VERT) {
return_cmd_error(STR_ERROR_NO_SUITABLE_RAILROAD_TRACK);
}
}
/* See if this is a valid track combination for signals (no overlap) */
if (TracksOverlap(GetTrackBits(tile))) return_cmd_error(STR_ERROR_NO_SUITABLE_RAILROAD_TRACK);
/* In case we don't want to change an existing signal, return without error. */
if (HasBit(p1, 17) && HasSignalOnTrack(tile, track)) return CommandCost();