# game_scanner.cpp

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    00001 /* $Id: game_scanner.cpp 23740 2012-01-03 21:32:51Z 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
    00014 #include "../script/squirrel_class.hpp"
    00015 #include "game_info.hpp"
    00016 #include "game_scanner.hpp"
    00017
    00018
    00019 void GameScannerInfo::Initialize()
    00020 {
    00021   ScriptScanner::Initialize("GSScanner");
    00022 }
    00023
    00024 void GameScannerInfo::GetScriptName(ScriptInfo *info, char *name, int len)
    00025 {
    00026   snprintf(name, len, "%s", info->GetName());
    00027 }
    00028
    00029 void GameScannerInfo::RegisterAPI(class Squirrel *engine)
    00030 {
    00031   GameInfo::RegisterAPI(engine);
    00032 }
    00033
    00034 GameInfo *GameScannerInfo::FindInfo(const char *nameParam, int versionParam, bool force_exact_match)
    00035 {
    00036   if (this->info_list.size() == 0) return NULL;
    00037   if (nameParam == NULL) return NULL;
    00038
    00039   char game_name[1024];
    00040   ttd_strlcpy(game_name, nameParam, sizeof(game_name));
    00041   strtolower(game_name);
    00042
    00043   GameInfo *info = NULL;
    00044   int version = -1;
    00045
    00046   if (versionParam == -1) {
    00047     /* We want to load the latest version of this Game script; so find it */
    00048     if (this->info_single_list.find(game_name) != this->info_single_list.end()) return static_cast<GameInfo *>(this->info_single_list[game_name]);
    00049
    00050     /* If we didn't find a match Game script, maybe the user included a version */
    00051     char *e = strrchr(game_name, '.');
    00052     if (e == NULL) return NULL;
    00053     *e = '\0';
    00054     e++;
    00055     versionParam = atoi(e);
    00056     /* FALL THROUGH, like we were calling this function with a version. */
    00057   }
    00058
    00059   if (force_exact_match) {
    00060     /* Try to find a direct 'name.version' match */
    00061     char game_name_tmp[1024];
    00062     snprintf(game_name_tmp, sizeof(game_name_tmp), "%s.%d", game_name, versionParam);
    00063     strtolower(game_name_tmp);
    00064     if (this->info_list.find(game_name_tmp) != this->info_list.end()) return static_cast<GameInfo *>(this->info_list[game_name_tmp]);
    00065   }
    00066
    00067   /* See if there is a compatible Game script which goes by that name, with the highest
    00068    *  version which allows loading the requested version */
    00069   ScriptInfoList::iterator it = this->info_list.begin();
    00070   for (; it != this->info_list.end(); it++) {
    00071     GameInfo *i = static_cast<GameInfo *>((*it).second);
    00072     if (strcasecmp(game_name, i->GetName()) == 0 && i->CanLoadFromVersion(versionParam) && (version == -1 || i->GetVersion() > version)) {
    00073       version = (*it).second->GetVersion();
    00074       info = i;
    00075     }
    00076   }
    00077
    00078   return info;
    00079 }
    00080
    00081
    00082 void GameScannerLibrary::Initialize()
    00083 {
    00084   ScriptScanner::Initialize("GSScanner");
    00085 }
    00086
    00087 void GameScannerLibrary::GetScriptName(ScriptInfo *info, char *name, int len)
    00088 {
    00089   GameLibrary *library = static_cast<GameLibrary *>(info);
    00090   snprintf(name, len, "%s.%s", library->GetCategory(), library->GetInstanceName());
    00091 }
    00092
    00093 void GameScannerLibrary::RegisterAPI(class Squirrel *engine)
    00094 {
    00095   GameLibrary::RegisterAPI(engine);
    00096 }
    00097
    00098 GameLibrary *GameScannerLibrary::FindLibrary(const char *library, int version)
    00099 {
    00100   /* Internally we store libraries as 'library.version' */
    00101   char library_name[1024];
    00102   snprintf(library_name, sizeof(library_name), "%s.%d", library, version);
    00103   strtolower(library_name);
    00104
    00105   /* Check if the library + version exists */
    00106   ScriptInfoList::iterator iter = this->info_list.find(library_name);
    00107   if (iter == this->info_list.end()) return NULL;
    00108
    00109   return static_cast<GameLibrary *>((*iter).second);
    00110 }