script_config.cpp

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00001 /* $Id: script_config.cpp 25592 2013-07-12 18:54:27Z 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 "../stdafx.h"
00013 #include "../settings_type.h"
00014 #include "../core/random_func.hpp"
00015 #include "script_info.hpp"
00016 #include "../textfile_gui.h"
00017 
00018 void ScriptConfig::Change(const char *name, int version, bool force_exact_match, bool is_random)
00019 {
00020   free(this->name);
00021   this->name = (name == NULL) ? NULL : strdup(name);
00022   this->info = (name == NULL) ? NULL : this->FindInfo(this->name, version, force_exact_match);
00023   this->version = (info == NULL) ? -1 : info->GetVersion();
00024   this->is_random = is_random;
00025   if (this->config_list != NULL) delete this->config_list;
00026   this->config_list = (info == NULL) ? NULL : new ScriptConfigItemList();
00027   if (this->config_list != NULL) this->PushExtraConfigList();
00028 
00029   this->ClearConfigList();
00030 
00031   if (_game_mode == GM_NORMAL && this->info != NULL) {
00032     /* If we're in an existing game and the Script is changed, set all settings
00033      *  for the Script that have the random flag to a random value. */
00034     for (ScriptConfigItemList::const_iterator it = this->info->GetConfigList()->begin(); it != this->info->GetConfigList()->end(); it++) {
00035       if ((*it).flags & SCRIPTCONFIG_RANDOM) {
00036         this->SetSetting((*it).name, InteractiveRandomRange((*it).max_value - (*it).min_value) + (*it).min_value);
00037       }
00038     }
00039     this->AddRandomDeviation();
00040   }
00041 }
00042 
00043 ScriptConfig::ScriptConfig(const ScriptConfig *config)
00044 {
00045   this->name = (config->name == NULL) ? NULL : strdup(config->name);
00046   this->info = config->info;
00047   this->version = config->version;
00048   this->config_list = NULL;
00049   this->is_random = config->is_random;
00050 
00051   for (SettingValueList::const_iterator it = config->settings.begin(); it != config->settings.end(); it++) {
00052     this->settings[strdup((*it).first)] = (*it).second;
00053   }
00054   this->AddRandomDeviation();
00055 }
00056 
00057 ScriptConfig::~ScriptConfig()
00058 {
00059   free(this->name);
00060   this->ResetSettings();
00061   if (this->config_list != NULL) delete this->config_list;
00062 }
00063 
00064 ScriptInfo *ScriptConfig::GetInfo() const
00065 {
00066   return this->info;
00067 }
00068 
00069 const ScriptConfigItemList *ScriptConfig::GetConfigList()
00070 {
00071   if (this->info != NULL) return this->info->GetConfigList();
00072   if (this->config_list == NULL) {
00073     this->config_list = new ScriptConfigItemList();
00074     this->PushExtraConfigList();
00075   }
00076   return this->config_list;
00077 }
00078 
00079 void ScriptConfig::ClearConfigList()
00080 {
00081   for (SettingValueList::iterator it = this->settings.begin(); it != this->settings.end(); it++) {
00082     free((*it).first);
00083   }
00084   this->settings.clear();
00085 }
00086 
00087 void ScriptConfig::AnchorUnchangeableSettings()
00088 {
00089   for (ScriptConfigItemList::const_iterator it = this->GetConfigList()->begin(); it != this->GetConfigList()->end(); it++) {
00090     if (((*it).flags & SCRIPTCONFIG_INGAME) == 0) {
00091       this->SetSetting((*it).name, this->GetSetting((*it).name));
00092     }
00093   }
00094 }
00095 
00096 int ScriptConfig::GetSetting(const char *name) const
00097 {
00098   SettingValueList::const_iterator it = this->settings.find(name);
00099   if (it == this->settings.end()) return this->info->GetSettingDefaultValue(name);
00100   return (*it).second;
00101 }
00102 
00103 void ScriptConfig::SetSetting(const char *name, int value)
00104 {
00105   /* You can only set Script specific settings if an Script is selected. */
00106   if (this->info == NULL) return;
00107 
00108   const ScriptConfigItem *config_item = this->info->GetConfigItem(name);
00109   if (config_item == NULL) return;
00110 
00111   value = Clamp(value, config_item->min_value, config_item->max_value);
00112 
00113   SettingValueList::iterator it = this->settings.find(name);
00114   if (it != this->settings.end()) {
00115     (*it).second = value;
00116   } else {
00117     this->settings[strdup(name)] = value;
00118   }
00119 }
00120 
00121 void ScriptConfig::ResetSettings()
00122 {
00123   for (SettingValueList::iterator it = this->settings.begin(); it != this->settings.end(); it++) {
00124     free((*it).first);
00125   }
00126   this->settings.clear();
00127 }
00128 
00129 void ScriptConfig::AddRandomDeviation()
00130 {
00131   for (ScriptConfigItemList::const_iterator it = this->GetConfigList()->begin(); it != this->GetConfigList()->end(); it++) {
00132     if ((*it).random_deviation != 0) {
00133       this->SetSetting((*it).name, InteractiveRandomRange((*it).random_deviation * 2) - (*it).random_deviation + this->GetSetting((*it).name));
00134     }
00135   }
00136 }
00137 
00138 bool ScriptConfig::HasScript() const
00139 {
00140   return this->info != NULL;
00141 }
00142 
00143 bool ScriptConfig::IsRandom() const
00144 {
00145   return this->is_random;
00146 }
00147 
00148 const char *ScriptConfig::GetName() const
00149 {
00150   return this->name;
00151 }
00152 
00153 int ScriptConfig::GetVersion() const
00154 {
00155   return this->version;
00156 }
00157 
00158 void ScriptConfig::StringToSettings(const char *value)
00159 {
00160   char *value_copy = strdup(value);
00161   char *s = value_copy;
00162 
00163   while (s != NULL) {
00164     /* Analyze the string ('name=value,name=value\0') */
00165     char *item_name = s;
00166     s = strchr(s, '=');
00167     if (s == NULL) break;
00168     if (*s == '\0') break;
00169     *s = '\0';
00170     s++;
00171 
00172     char *item_value = s;
00173     s = strchr(s, ',');
00174     if (s != NULL) {
00175       *s = '\0';
00176       s++;
00177     }
00178 
00179     this->SetSetting(item_name, atoi(item_value));
00180   }
00181   free(value_copy);
00182 }
00183 
00184 void ScriptConfig::SettingsToString(char *string, size_t size) const
00185 {
00186   string[0] = '\0';
00187   for (SettingValueList::const_iterator it = this->settings.begin(); it != this->settings.end(); it++) {
00188     char no[10];
00189     snprintf(no, sizeof(no), "%d", (*it).second);
00190 
00191     /* Check if the string would fit in the destination */
00192     size_t needed_size = strlen((*it).first) + 1 + strlen(no) + 1;
00193     /* If it doesn't fit, skip the next settings */
00194     if (size <= needed_size) break;
00195     size -= needed_size;
00196 
00197     strcat(string, (*it).first);
00198     strcat(string, "=");
00199     strcat(string, no);
00200     strcat(string, ",");
00201   }
00202   /* Remove the last ',', but only if at least one setting was saved. */
00203   size_t len = strlen(string);
00204   if (len > 0) string[len - 1] = '\0';
00205 }
00206 
00207 const char *ScriptConfig::GetTextfile(TextfileType type, CompanyID slot) const
00208 {
00209   if (slot == INVALID_COMPANY || this->GetInfo() == NULL) return NULL;
00210 
00211   return ::GetTextfile(type, (slot == OWNER_DEITY) ? GAME_DIR : AI_DIR, this->GetInfo()->GetMainScript());
00212 }