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_subsidy.hpp" 00013 #include "ai_date.hpp" 00014 #include "../../subsidy_base.h" 00015 #include "../../station_base.h" 00016 00017 /* static */ bool AISubsidy::IsValidSubsidy(SubsidyID subsidy_id) 00018 { 00019 return ::Subsidy::IsValidID(subsidy_id); 00020 } 00021 00022 /* static */ bool AISubsidy::IsAwarded(SubsidyID subsidy_id) 00023 { 00024 if (!IsValidSubsidy(subsidy_id)) return false; 00025 00026 return ::Subsidy::Get(subsidy_id)->IsAwarded(); 00027 } 00028 00029 /* static */ AICompany::CompanyID AISubsidy::GetAwardedTo(SubsidyID subsidy_id) 00030 { 00031 if (!IsAwarded(subsidy_id)) return AICompany::COMPANY_INVALID; 00032 00033 return (AICompany::CompanyID)((byte)::Subsidy::Get(subsidy_id)->awarded); 00034 } 00035 00036 /* static */ int32 AISubsidy::GetExpireDate(SubsidyID subsidy_id) 00037 { 00038 if (!IsValidSubsidy(subsidy_id)) return -1; 00039 00040 int year = AIDate::GetYear(AIDate::GetCurrentDate()); 00041 int month = AIDate::GetMonth(AIDate::GetCurrentDate()); 00042 00043 month += ::Subsidy::Get(subsidy_id)->remaining; 00044 00045 year += (month - 1) / 12; 00046 month = ((month - 1) % 12) + 1; 00047 00048 return AIDate::GetDate(year, month, 1); 00049 } 00050 00051 /* static */ CargoID AISubsidy::GetCargoType(SubsidyID subsidy_id) 00052 { 00053 if (!IsValidSubsidy(subsidy_id)) return CT_INVALID; 00054 00055 return ::Subsidy::Get(subsidy_id)->cargo_type; 00056 } 00057 00058 /* static */ AISubsidy::SubsidyParticipantType AISubsidy::GetSourceType(SubsidyID subsidy_id) 00059 { 00060 if (!IsValidSubsidy(subsidy_id)) return SPT_INVALID; 00061 00062 return (SubsidyParticipantType)(uint)::Subsidy::Get(subsidy_id)->src_type; 00063 } 00064 00065 /* static */ int32 AISubsidy::GetSourceIndex(SubsidyID subsidy_id) 00066 { 00067 if (!IsValidSubsidy(subsidy_id)) return INVALID_STATION; 00068 00069 return ::Subsidy::Get(subsidy_id)->src; 00070 } 00071 00072 /* static */ AISubsidy::SubsidyParticipantType AISubsidy::GetDestinationType(SubsidyID subsidy_id) 00073 { 00074 if (!IsValidSubsidy(subsidy_id)) return SPT_INVALID; 00075 00076 return (SubsidyParticipantType)(uint)::Subsidy::Get(subsidy_id)->dst_type; 00077 } 00078 00079 /* static */ int32 AISubsidy::GetDestinationIndex(SubsidyID subsidy_id) 00080 { 00081 if (!IsValidSubsidy(subsidy_id)) return INVALID_STATION; 00082 00083 return ::Subsidy::Get(subsidy_id)->dst; 00084 }