src/ai/ai_config.cpp

   1 /*
   2  * This file is part of OpenTTD.
   3  * 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.
   4  * 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.
   5  * 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/>.
   6  */
   7
   8 /** @file ai_config.cpp Implementation of AIConfig. */
   9
  10 #include "../stdafx.h"
  11 #include "../settings_type.h"
  12 #include "../string_func.h"
  13 #include "ai.hpp"
  14 #include "ai_config.hpp"
  15 #include "ai_info.hpp"
  16
  17 #include "../safeguards.h"
  18
  19 /** Configuration for AI start date, every AI has this setting. */
  20 ScriptConfigItem _start_date_config = {
  21         "start_date",
  22         "", // STR_AI_SETTINGS_START_DELAY
  23         AI::START_NEXT_MIN,
  24         AI::START_NEXT_MAX,
  25         AI::START_NEXT_MEDIUM,
  26         AI::START_NEXT_EASY,
  27         AI::START_NEXT_MEDIUM,
  28         AI::START_NEXT_HARD,
  29         AI::START_NEXT_DEVIATION,
  30         30,
  31         SCRIPTCONFIG_NONE,
  32         nullptr,
  33         false
  34 };
  35
  36 AIConfig::AIConfig(const AIConfig *config) : ScriptConfig(config)
  37 {
  38         /* Override start_date as per AIConfig::AddRandomDeviation().
  39          * This is necessary because the ScriptConfig constructor will instead call
  40          * ScriptConfig::AddRandomDeviation(). */
  41         int start_date = config->GetSetting("start_date");
  42         this->SetSetting("start_date", start_date != 0 ? std::max(1, this->GetSetting("start_date")) : 0);
  43 }
  44
  45 /* static */ AIConfig *AIConfig::GetConfig(CompanyID company, ScriptSettingSource source)
  46 {
  47         AIConfig **config;
  48         if (source == SSS_FORCE_NEWGAME || (source == SSS_DEFAULT && _game_mode == GM_MENU)) {
  49                 config = &_settings_newgame.ai_config[company];
  50         } else {
  51                 config = &_settings_game.ai_config[company];
  52         }
  53         if (*config == nullptr) *config = new AIConfig();
  54         return *config;
  55 }
  56
  57 class AIInfo *AIConfig::GetInfo() const
  58 {
  59         return static_cast<class AIInfo *>(ScriptConfig::GetInfo());
  60 }
  61
  62 ScriptInfo *AIConfig::FindInfo(const char *name, int version, bool force_exact_match)
  63 {
  64         return static_cast<ScriptInfo *>(AI::FindInfo(name, version, force_exact_match));
  65 }
  66
  67 bool AIConfig::ResetInfo(bool force_exact_match)
  68 {
  69         this->info = (ScriptInfo *)AI::FindInfo(this->name, force_exact_match ? this->version : -1, force_exact_match);
  70         return this->info != nullptr;
  71 }
  72
  73 void AIConfig::PushExtraConfigList()
  74 {
  75         this->config_list->push_back(_start_date_config);
  76 }
  77
  78 void AIConfig::ClearConfigList()
  79 {
  80         /* The special casing for start_date is here to ensure that the
  81          *  start_date setting won't change even if you chose another Script. */
  82         int start_date = this->GetSetting("start_date");
  83
  84         ScriptConfig::ClearConfigList();
  85
  86         this->SetSetting("start_date", start_date);
  87 }
  88
  89 int AIConfig::GetSetting(const char *name) const
  90 {
  91         if (this->info == nullptr) {
  92                 SettingValueList::const_iterator it = this->settings.find(name);
  93                 if (it == this->settings.end()) {
  94                         assert(strcmp("start_date", name) == 0);
  95                         switch (GetGameSettings().script.settings_profile) {
  96                                 case SP_EASY:   return AI::START_NEXT_EASY;
  97                                 case SP_MEDIUM: return AI::START_NEXT_MEDIUM;
  98                                 case SP_HARD:   return AI::START_NEXT_HARD;
  99                                 case SP_CUSTOM: return AI::START_NEXT_MEDIUM;
 100                                 default: NOT_REACHED();
 101                         }
 102                 }
 103
 104                 return (*it).second;
 105         }
 106
 107         return ScriptConfig::GetSetting(name);
 108 }
 109
 110 void AIConfig::SetSetting(const char *name, int value)
 111 {
 112         if (this->info == nullptr) {
 113                 if (strcmp("start_date", name) != 0) return;
 114                 value = Clamp(value, AI::START_NEXT_MIN, AI::START_NEXT_MAX);
 115
 116                 SettingValueList::iterator it = this->settings.find(name);
 117                 if (it != this->settings.end()) {
 118                         (*it).second = value;
 119                 } else {
 120                         this->settings[stredup(name)] = value;
 121                 }
 122
 123                 return;
 124         }
 125
 126         ScriptConfig::SetSetting(name, value);
 127 }
 128
 129 void AIConfig::AddRandomDeviation()
 130 {
 131         int start_date = this->GetSetting("start_date");
 132
 133         ScriptConfig::AddRandomDeviation();
 134
 135         /* start_date = 0 is a special case, where random deviation does not occur.
 136          * If start_date was not already 0, then a minimum value of 1 must apply. */
 137         this->SetSetting("start_date", start_date != 0 ? std::max(1, this->GetSetting("start_date")) : 0);
 138 }