# ai_basestation.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "ai_basestation.hpp"
    00013 #include "../../station_base.h"
    00014 #include "../../command_func.h"
    00015 #include "../../string_func.h"
    00016 #include "../../strings_func.h"
    00017 #include "../../company_func.h"
    00018 #include "table/strings.h"
    00019
    00020 /* static */ bool AIBaseStation::IsValidBaseStation(StationID station_id)
    00021 {
    00022   const BaseStation *st = ::BaseStation::GetIfValid(station_id);
    00023   return st != NULL && (st->owner == _current_company || st->owner == OWNER_NONE);
    00024 }
    00025
    00026 /* static */ char *AIBaseStation::GetName(StationID station_id)
    00027 {
    00028   if (!IsValidBaseStation(station_id)) return NULL;
    00029
    00030   static const int len = 64;
    00031   char *name = MallocT<char>(len);
    00032
    00033 	::SetDParam(0, station_id);
    00034   ::GetString(name, ::Station::IsValidID(station_id) ? STR_STATION_NAME : STR_WAYPOINT_NAME, &name[len - 1]);
    00035   return name;
    00036 }
    00037
    00038 /* static */ bool AIBaseStation::SetName(StationID station_id, const char *name)
    00039 {
    00040   EnforcePrecondition(false, IsValidBaseStation(station_id));
    00041   EnforcePrecondition(false, !::StrEmpty(name));
    00042   EnforcePreconditionCustomError(false, ::strlen(name) < MAX_LENGTH_STATION_NAME_BYTES, AIError::ERR_PRECONDITION_STRING_TOO_LONG);
    00043
    00044   return AIObject::DoCommand(0, station_id, 0, ::Station::IsValidID(station_id) ? CMD_RENAME_STATION : CMD_RENAME_WAYPOINT, name);
    00045 }
    00046
    00047 /* static */ TileIndex AIBaseStation::GetLocation(StationID station_id)
    00048 {
    00049   if (!IsValidBaseStation(station_id)) return INVALID_TILE;
    00050
    00051   return ::BaseStation::Get(station_id)->xy;
    00052 }
    00053
    00054 /* static */ int32 AIBaseStation::GetConstructionDate(StationID station_id)
    00055 {
    00056   if (!IsValidBaseStation(station_id)) return -1;
    00057
    00058   return ::BaseStation::Get(station_id)->build_date;
    00059 }