diff options
Diffstat (limited to 'src/toolbar_gui.cpp')
| -rw-r--r-- | src/toolbar_gui.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/toolbar_gui.cpp b/src/toolbar_gui.cpp index f5537a19c..a93568969 100644 --- a/src/toolbar_gui.cpp +++ b/src/toolbar_gui.cpp @@ -693,22 +693,21 @@ static CallBackFunction ToolbarZoomOutClick(Window *w) static CallBackFunction ToolbarBuildRailClick(Window *w) { - /* Use C++ spec to zero whole array. */ - bool used_railtype[RAILTYPE_END] = { false }; + RailTypes used_railtypes = RAILTYPES_NONE; /* Find the used railtypes. */ Engine *e; FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) { if (!HasBit(e->info.climates, _settings_game.game_creation.landscape)) continue; - used_railtype[e->u.rail.railtype] = true; + used_railtypes |= GetRailTypeInfo(e->u.rail.railtype)->introduces_railtypes; } const Company *c = Company::Get(_local_company); DropDownList *list = new DropDownList(); for (RailType rt = RAILTYPE_BEGIN; rt != RAILTYPE_END; rt++) { /* If it's not used ever, don't show it to the user. */ - if (!used_railtype[rt]) continue; + if (!HasBit(used_railtypes, rt)) continue; const RailtypeInfo *rti = GetRailTypeInfo(rt); /* Skip rail type if it has no label */ |