diff options
Diffstat (limited to 'src/rail.cpp')
| -rw-r--r-- | src/rail.cpp | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/src/rail.cpp b/src/rail.cpp index c97dfb53c..f2870c1eb 100644 --- a/src/rail.cpp +++ b/src/rail.cpp @@ -262,13 +262,14 @@ RailTypes AddDateIntroducedRailTypes(RailTypes current, Date date) /** * Get the rail types the given company can build. * @param company the company to get the rail types for. + * @param introduces If true, include rail types introduced by other rail types * @return the rail types. */ -RailTypes GetCompanyRailtypes(CompanyID company) +RailTypes GetCompanyRailtypes(CompanyID company, bool introduces) { RailTypes rts = RAILTYPES_NONE; - Engine *e; + const Engine *e; FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) { const EngineInfo *ei = &e->info; @@ -278,12 +279,46 @@ RailTypes GetCompanyRailtypes(CompanyID company) if (rvi->railveh_type != RAILVEH_WAGON) { assert(rvi->railtype < RAILTYPE_END); + if (introduces) { + rts |= GetRailTypeInfo(rvi->railtype)->introduces_railtypes; + } else { + SetBit(rts, rvi->railtype); + } + } + } + } + + if (introduces) return AddDateIntroducedRailTypes(rts, _date); + return rts; +} + +/** + * Get list of rail types, regardless of company availability. + * @param introduces If true, include rail types introduced by other rail types + * @return the rail types. + */ +RailTypes GetRailTypes(bool introduces) +{ + RailTypes rts = RAILTYPES_NONE; + + const Engine *e; + FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) { + const EngineInfo *ei = &e->info; + if (!HasBit(ei->climates, _settings_game.game_creation.landscape)) continue; + + const RailVehicleInfo *rvi = &e->u.rail; + if (rvi->railveh_type != RAILVEH_WAGON) { + assert(rvi->railtype < RAILTYPE_END); + if (introduces) { rts |= GetRailTypeInfo(rvi->railtype)->introduces_railtypes; + } else { + SetBit(rts, rvi->railtype); } } } - return AddDateIntroducedRailTypes(rts, _date); + if (introduces) return AddDateIntroducedRailTypes(rts, MAX_DAY); + return rts; } /** |