diff options
Diffstat (limited to 'src/ai')
| -rw-r--r-- | src/ai/default/default.cpp | 45 |
1 files changed, 40 insertions, 5 deletions
diff --git a/src/ai/default/default.cpp b/src/ai/default/default.cpp index 49bd07fe9..957ba653e 100644 --- a/src/ai/default/default.cpp +++ b/src/ai/default/default.cpp @@ -199,7 +199,13 @@ static EngineID AiChooseRoadVehToBuild(CargoID cargo, Money money, TileIndex til return best_veh_index; } -static EngineID AiChooseAircraftToBuild(Money money, byte flag) +/** + * Choose aircraft to build. + * @param money current AI money + * @param forbidden forbidden flags - AIR_HELI = 0 (always allowed), AIR_CTOL = 1 (bit 0), AIR_FAST = 2 (bit 1) + * @return EngineID of aircraft to build + */ +static EngineID AiChooseAircraftToBuild(Money money, byte forbidden) { EngineID best_veh_index = INVALID_ENGINE; Money best_veh_cost = 0; @@ -212,7 +218,7 @@ static EngineID AiChooseAircraftToBuild(Money money, byte flag) continue; } - if ((AircraftVehInfo(i)->subtype & AIR_CTOL) != flag) continue; + if ((AircraftVehInfo(i)->subtype & forbidden) != 0) continue; CommandCost ret = DoCommand(0, i, 0, DC_QUERY_COST, CMD_BUILD_AIRCRAFT); if (CmdSucceeded(ret) && ret.GetCost() <= money && ret.GetCost() >= best_veh_cost) { @@ -249,8 +255,24 @@ static EngineID AiChooseRoadVehToReplaceWith(const Player* p, const Vehicle* v) static EngineID AiChooseAircraftToReplaceWith(const Player* p, const Vehicle* v) { Money avail_money = p->player_money + v->value; + + /* determine forbidden aircraft bits */ + byte forbidden = 0; + const Order *o; + + FOR_VEHICLE_ORDERS(v, o) { + if (!o->IsValid()) continue; + if (!IsValidStationID(o->dest)) continue; + const Station *st = GetStation(o->dest); + if (!(st->facilities & FACIL_AIRPORT)) continue; + + AirportFTAClass::Flags flags = st->Airport()->flags; + if (!(flags & AirportFTAClass::AIRPLANES)) forbidden |= AIR_CTOL | AIR_FAST; // no planes for heliports / oil rigs + if (flags & AirportFTAClass::SHORT_STRIP) forbidden |= AIR_FAST; // no fast planes for small airports + } + return AiChooseAircraftToBuild( - avail_money, AircraftVehInfo(v->engine_type)->subtype & AIR_CTOL + avail_money, forbidden ); } @@ -1365,7 +1387,7 @@ static void AiWantPassengerAircraftRoute(Player *p) /* Get aircraft that would be bought for this route * (probably, as conditions may change before the route is fully built, * like running out of money and having to select different aircraft, etc ...) */ - EngineID veh = AiChooseAircraftToBuild(p->player_money, _players_ai[p->index].build_kind != 0 ? 0 : AIR_CTOL); + EngineID veh = AiChooseAircraftToBuild(p->player_money, _players_ai[p->index].build_kind != 0 ? AIR_CTOL : 0); /* No aircraft buildable mean no aircraft route */ if (veh == INVALID_ENGINE) return; @@ -3504,7 +3526,20 @@ static void AiStateBuildAircraftVehicles(Player *p) tile = TILE_ADD(_players_ai[p->index].src.use_tile, ToTileIndexDiff(ptr->tileoffs)); - veh = AiChooseAircraftToBuild(p->player_money, _players_ai[p->index].build_kind != 0 ? 0 : AIR_CTOL); + /* determine forbidden aircraft bits */ + byte forbidden = 0; + for (i = 0; _players_ai[p->index].order_list_blocks[i] != 0xFF; i++) { + const AiBuildRec *aib = (&_players_ai[p->index].src) + _players_ai[p->index].order_list_blocks[i]; + const Station *st = GetStationByTile(aib->use_tile); + + if (st == NULL || !(st->facilities & FACIL_AIRPORT)) continue; + + AirportFTAClass::Flags flags = st->Airport()->flags; + if (!(flags & AirportFTAClass::AIRPLANES)) forbidden |= AIR_CTOL | AIR_FAST; // no planes for heliports / oil rigs + if (flags & AirportFTAClass::SHORT_STRIP) forbidden |= AIR_FAST; // no fast planes for small airports + } + + veh = AiChooseAircraftToBuild(p->player_money, forbidden); if (veh == INVALID_ENGINE) return; /* XXX - Have the AI pick the hangar terminal in an airport. Eg get airport-type |