# ai_industrytype.cpp

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    00001 /* $Id: ai_industrytype.cpp 18809 2010-01-15 16:41:15Z rubidium $ */
    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_industrytype.hpp"
    00013 #include "ai_map.hpp"
    00014 #include "../../command_type.h"
    00015 #include "../../strings_func.h"
    00016 #include "../../industry.h"
    00017 #include "../../core/random_func.hpp"
    00018
    00019 /* static */ bool AIIndustryType::IsValidIndustryType(IndustryType industry_type)
    00020 {
    00021   if (industry_type >= NUM_INDUSTRYTYPES) return false;
    00022
    00023   return ::GetIndustrySpec(industry_type)->enabled;
    00024 }
    00025
    00026 /* static */ bool AIIndustryType::IsRawIndustry(IndustryType industry_type)
    00027 {
    00028   if (!IsValidIndustryType(industry_type)) return false;
    00029
    00030   return ::GetIndustrySpec(industry_type)->IsRawIndustry();
    00031 }
    00032
    00033 /* static */ bool AIIndustryType::ProductionCanIncrease(IndustryType industry_type)
    00034 {
    00035   if (!IsValidIndustryType(industry_type)) return false;
    00036
    00037   if (_settings_game.game_creation.landscape != LT_TEMPERATE) return true;
    00038   return (::GetIndustrySpec(industry_type)->behaviour & INDUSTRYBEH_DONT_INCR_PROD) == 0;
    00039 }
    00040
    00041 /* static */ Money AIIndustryType::GetConstructionCost(IndustryType industry_type)
    00042 {
    00043   if (!IsValidIndustryType(industry_type)) return -1;
    00044   if (::GetIndustrySpec(industry_type)->IsRawIndustry() && _settings_game.construction.raw_industry_construction == 0) return -1;
    00045
    00046   return ::GetIndustrySpec(industry_type)->GetConstructionCost();
    00047 }
    00048
    00049 /* static */ char *AIIndustryType::GetName(IndustryType industry_type)
    00050 {
    00051   if (!IsValidIndustryType(industry_type)) return NULL;
    00052   static const int len = 64;
    00053   char *industrytype_name = MallocT<char>(len);
    00054
    00055   ::GetString(industrytype_name, ::GetIndustrySpec(industry_type)->name, &industrytype_name[len - 1]);
    00056
    00057   return industrytype_name;
    00058 }
    00059
    00060 /* static */ AIList *AIIndustryType::GetProducedCargo(IndustryType industry_type)
    00061 {
    00062   if (!IsValidIndustryType(industry_type)) return NULL;
    00063
    00064   const IndustrySpec *ins = ::GetIndustrySpec(industry_type);
    00065
    00066   AIList *list = new AIList();
    00067   for (size_t i = 0; i < lengthof(ins->produced_cargo); i++) {
    00068     if (ins->produced_cargo[i] != CT_INVALID) list->AddItem(ins->produced_cargo[i], 0);
    00069   }
    00070
    00071   return list;
    00072 }
    00073
    00074 /* static */ AIList *AIIndustryType::GetAcceptedCargo(IndustryType industry_type)
    00075 {
    00076   if (!IsValidIndustryType(industry_type)) return NULL;
    00077
    00078   const IndustrySpec *ins = ::GetIndustrySpec(industry_type);
    00079
    00080   AIList *list = new AIList();
    00081   for (size_t i = 0; i < lengthof(ins->accepts_cargo); i++) {
    00082     if (ins->accepts_cargo[i] != CT_INVALID) list->AddItem(ins->accepts_cargo[i], 0);
    00083   }
    00084
    00085   return list;
    00086 }
    00087
    00088 /* static */ bool AIIndustryType::CanBuildIndustry(IndustryType industry_type)
    00089 {
    00090   if (!IsValidIndustryType(industry_type)) return false;
    00091   if (!::GetIndustrySpec(industry_type)->IsRawIndustry()) return true;
    00092
    00093   /* raw_industry_construction == 1 means "Build as other industries" */
    00094   return _settings_game.construction.raw_industry_construction == 1;
    00095 }
    00096
    00097 /* static */ bool AIIndustryType::CanProspectIndustry(IndustryType industry_type)
    00098 {
    00099   if (!IsValidIndustryType(industry_type)) return false;
    00100   if (!::GetIndustrySpec(industry_type)->IsRawIndustry()) return false;
    00101
    00102   /* raw_industry_construction == 2 means "prospect" */
    00103   return _settings_game.construction.raw_industry_construction == 2;
    00104 }
    00105
    00106 /* static */ bool AIIndustryType::BuildIndustry(IndustryType industry_type, TileIndex tile)
    00107 {
    00108   EnforcePrecondition(false, CanBuildIndustry(industry_type));
    00109   EnforcePrecondition(false, AIMap::IsValidTile(tile));
    00110
    00111   uint32 seed = ::InteractiveRandom();
    00112   return AIObject::DoCommand(tile, (::InteractiveRandomRange(::GetIndustrySpec(industry_type)->num_table) << 8) | industry_type, seed, CMD_BUILD_INDUSTRY);
    00113 }
    00114
    00115 /* static */ bool AIIndustryType::ProspectIndustry(IndustryType industry_type)
    00116 {
    00117   EnforcePrecondition(false, CanProspectIndustry(industry_type));
    00118
    00119   uint32 seed = ::InteractiveRandom();
    00120   return AIObject::DoCommand(0, industry_type, seed, CMD_BUILD_INDUSTRY);
    00121 }
    00122
    00123 /* static */ bool AIIndustryType::IsBuiltOnWater(IndustryType industry_type)
    00124 {
    00125   if (!IsValidIndustryType(industry_type)) return false;
    00126
    00127   return (::GetIndustrySpec(industry_type)->behaviour & INDUSTRYBEH_BUILT_ONWATER) != 0;
    00128 }
    00129
    00130 /* static */ bool AIIndustryType::HasHeliport(IndustryType industry_type)
    00131 {
    00132   if (!IsValidIndustryType(industry_type)) return false;
    00133
    00134   return (::GetIndustrySpec(industry_type)->behaviour & INDUSTRYBEH_AI_AIRSHIP_ROUTES) != 0;
    00135 }
    00136
    00137 /* static */ bool AIIndustryType::HasDock(IndustryType industry_type)
    00138 {
    00139   if (!IsValidIndustryType(industry_type)) return false;
    00140
    00141   return (::GetIndustrySpec(industry_type)->behaviour & INDUSTRYBEH_AI_AIRSHIP_ROUTES) != 0;
    00142 }