src/kingdom.cc

   1 /*
   2  * See kingdom.hh for a brief description of kingdoms.
   3  *
   4  * Copyright (C) 2008 Hermann Walth
   5  *
   6  * This file is part of OpenStranded
   7  *
   8  * OpenStranded is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation, either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * OpenStranded is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with OpenStranded. If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "kingdom.hh"
  23 #include "object.hh"
  24 #include "unit.hh"
  25 #include "item.hh"
  26 #include "defparse/defparse.hh"
  27
  28 #include <iostream>
  29
  30 #ifdef unix
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33 #include <dirent.h>
  34 #include <fcntl.h>
  35 #include <string.h>
  36 #else
  37 #include <windows.h>
  38 #endif
  39
  40
  41 std::map <ID, Kingdom*> Kingdom::kingdomList;
  42
  43
  44 Kingdom::Kingdom(const char *name):
  45         name(std::string(name))
  46 {
  47         highestEntityID = 0;
  48 }
  49
  50
  51 Kingdom::~Kingdom ()
  52 {
  53         std::map <ID, Type*>::iterator type;
  54         for (type = typeList.begin (); type != typeList.end (); type++)
  55                 destroyType (type->second);
  56
  57         std::map <ID, Entity*>::iterator entity;
  58         for (entity = entityList.begin (); entity != entityList.end (); entity++)
  59                 destroyEntity (entity->second);
  60 }
  61
  62
  63 Entity*
  64 Kingdom::getEntity (ID index)
  65 {
  66         if (entityExists (index))
  67                 return entityList[index];
  68         else
  69                 return NULL;
  70 }
  71
  72
  73 Type*
  74 Kingdom::getType (ID index)
  75 {
  76         if (typeExists (index))
  77                 return typeList[index];
  78         else
  79                 return NULL;
  80 }
  81
  82
  83 bool
  84 Kingdom::entityExists (ID entity)
  85 {
  86         if (entityList.find (entity) != entityList.end ())
  87                 return true;
  88         else
  89                 return false;
  90 }
  91
  92
  93 bool
  94 Kingdom::typeExists (ID type)
  95 {
  96         if (typeList.find (type) != typeList.end ())
  97                 return true;
  98         else
  99                 return false;
 100 }
 101
 102
 103 Entity*
 104 Kingdom::appendEntity (ID type)
 105 {
 106         return entityList[++highestEntityID] = createEntity (type);
 107 }
 108
 109
 110 Entity*
 111 Kingdom::insertEntity (ID type, ID entity)
 112 {
 113         if (!entityExists (entity))
 114                 entityList[entity] = createEntity (type);
 115
 116         if (entity > highestEntityID)
 117                 highestEntityID = entity;
 118
 119         return entityList[entity];
 120 }
 121
 122
 123 Type*
 124 Kingdom::insertType (const char* name, ID type)
 125 {
 126         if (!typeExists (type))
 127                 typeList[type] = createType (name);
 128         return typeList[type];
 129 }
 130
 131
 132 Type*
 133 Kingdom::insertType (ID type)
 134 {
 135         return this->insertType ("", type);
 136 }
 137
 138
 139 Entity*
 140 Kingdom::createEntity (ID type)
 141 {
 142         return new Entity (type);
 143 }
 144
 145
 146 void
 147 Kingdom::destroyEntity (Entity *entity)
 148 {
 149         delete entity;
 150 }
 151
 152
 153 Type*
 154 Kingdom::createType (const char* name)
 155 {
 156         return new Type (name);
 157 }
 158
 159
 160 void
 161 Kingdom::destroyType (Type *type)
 162 {
 163         delete type;
 164 }
 165
 166 /*
 167  * Functions for the kingdomList
 168  * TODO: In terms of beauty and modularity,
 169  * these functions should be outsourced into another file
 170  */
 171 void
 172 Kingdom::initKingdomList (std::string mod)
 173 {
 174         kingdomList[S2_OBJECT] = new ObjectKingdom;
 175         kingdomList[S2_UNIT] = new UnitKingdom;
 176         kingdomList[S2_ITEM] = new ItemKingdom;
 177
 178         // Load entity types
 179         parseEntityTypes(mod, "object");
 180 }
 181
 182
 183 void
 184 Kingdom::uninitKingdomList ()
 185 {
 186         std::map <ID, Kingdom*>::iterator iter;
 187         for (iter = kingdomList.begin (); iter != kingdomList.end (); iter++)
 188                 delete (iter->second);
 189 }
 190
 191 void
 192 Kingdom::parseEntityTypes(std::string mod, std::string name)
 193 {
 194         std::string sysdir = std::string("mods/") + mod + "/sys/";
 195         // Search for entity files within sys/
 196         #ifdef __unix__
 197         DIR *dir = opendir(sysdir.c_str());
 198         if (!dir)
 199         {
 200                 std::cerr << "Could not read sys/.\n";
 201                 std::cerr << sysdir << "\n";
 202                 return;
 203         }
 204
 205         while (1)
 206         {
 207                 struct dirent *dirent = readdir(dir);
 208                 if (!dirent) break;
 209                 if (strcmp(dirent->d_name, "..") && strcmp(dirent->d_name, "."))
 210                 {
 211                         std::string filename = sysdir + dirent->d_name;
 212                         int file = open(filename.c_str(), O_RDONLY);
 213                         if (!file)
 214                         {
 215                                 printf("Could not open file \"%s\".\n", filename.c_str());
 216                                 continue;
 217                         }
 218                         struct stat stat;
 219                         fstat(file, &stat);
 220                         close(file);
 221
 222                         if (stat.st_mode & S_IFREG)
 223                         {
 224                                 if (!strncmp(dirent->d_name, name.c_str(), strlen(name.c_str()))
 225                                         && !strcmp(dirent->d_name + strlen(dirent->d_name) - 4, ".inf"))
 226                                 {
 227                                         printf("Parsing %s\n", filename.c_str());
 228                                         def::object::parse(filename.c_str());
 229                                 }
 230                         }
 231                 }
 232         }
 233         closedir(dir);
 234         #else
 235         std::string pattern = sysdir + name + "s_*.inf";
 236         WIN32_FIND_DATA finddata;
 237         HANDLE findhandle = FindFirstFile(pattern.c_str(), &finddata);
 238         if (findhandle != INVALID_HANDLE_VALUE)
 239         {
 240                 def::object::parse(finddata.cFileName);
 241                 while (FindNextFile(findhandle, &finddata))
 242                 {
 243                         def::object::parse(finddata.cFileName);
 244                 }
 245                 FindClose(findhandle);
 246         }
 247         #endif
 248 }