OpenTTD: src/game/game_scanner.cpp Source File

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game_scanner.cpp
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1 /* $Id: game_scanner.cpp 27893 2017-08-13 18:38:42Z frosch $ */
2
3 /*
4 * This file is part of OpenTTD.
5 * 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.
6 * 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.
7 * 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/>.
8 */
9
12 #include "../stdafx.h"
13
14 #include "../script/squirrel_class.hpp"
15 #include "game_info.hpp"
16 #include "game_scanner.hpp"
17
18 #include "../safeguards.h"
19
20
21 void GameScannerInfo::Initialize()
22 {
23 ScriptScanner::Initialize("GSScanner");
24 }
25
26 void GameScannerInfo::GetScriptName(ScriptInfo *info, char *name, const char *last)
27 {
28 seprintf(name, last, "%s", info->GetName());
29 }
30
31 void GameScannerInfo::RegisterAPI(class Squirrel *engine)
32 {
33 GameInfo::RegisterAPI(engine);
34 }
35
36 GameInfo *GameScannerInfo::FindInfo(const char *nameParam, int versionParam, bool force_exact_match)
37 {
38 if (this->info_list.size() == 0) return NULL;
39 if (nameParam == NULL) return NULL;
40
41 char game_name[1024];
42 strecpy(game_name, nameParam, lastof(game_name));
43 strtolower(game_name);
44
45 GameInfo *info = NULL;
46 int version = -1;
47
48 if (versionParam == -1) {
49 /* We want to load the latest version of this Game script; so find it */
50 if (this->info_single_list.find(game_name) != this->info_single_list.end()) return static_cast<GameInfo *>(this->info_single_list[game_name]);
51
52 /* If we didn't find a match Game script, maybe the user included a version */
53 char *e = strrchr(game_name, '.');
54 if (e == NULL) return NULL;
55 *e = '\0';
56 e++;
57 versionParam = atoi(e);
58 /* Continue like we were calling this function with a version. */
59 }
60
61 if (force_exact_match) {
62 /* Try to find a direct 'name.version' match */
63 char game_name_tmp[1024];
64 seprintf(game_name_tmp, lastof(game_name_tmp), "%s.%d", game_name, versionParam);
65 strtolower(game_name_tmp);
66 if (this->info_list.find(game_name_tmp) != this->info_list.end()) return static_cast<GameInfo *>(this->info_list[game_name_tmp]);
67 }
68
69 /* See if there is a compatible Game script which goes by that name, with the highest
70 * version which allows loading the requested version */
71 ScriptInfoList::iterator it = this->info_list.begin();
72 for (; it != this->info_list.end(); it++) {
73 GameInfo *i = static_cast<GameInfo *>((*it).second);
74 if (strcasecmp(game_name, i->GetName()) == 0 && i->CanLoadFromVersion(versionParam) && (version == -1 || i->GetVersion() > version)) {
75 version = (*it).second->GetVersion();
76 info = i;
77 }
78 }
79
80 return info;
81 }
82
83
84 void GameScannerLibrary::Initialize()
85 {
86 ScriptScanner::Initialize("GSScanner");
87 }
88
89 void GameScannerLibrary::GetScriptName(ScriptInfo *info, char *name, const char *last)
90 {
91 GameLibrary *library = static_cast<GameLibrary *>(info);
92 seprintf(name, last, "%s.%s", library->GetCategory(), library->GetInstanceName());
93 }
94
95 void GameScannerLibrary::RegisterAPI(class Squirrel *engine)
96 {
97 GameLibrary::RegisterAPI(engine);
98 }
99
100 GameLibrary *GameScannerLibrary::FindLibrary(const char *library, int version)
101 {
102 /* Internally we store libraries as 'library.version' */
103 char library_name[1024];
104 seprintf(library_name, lastof(library_name), "%s.%d", library, version);
105 strtolower(library_name);
106
107 /* Check if the library + version exists */
108 ScriptInfoList::iterator iter = this->info_list.find(library_name);
109 if (iter == this->info_list.end()) return NULL;
110
111 return static_cast<GameLibrary *>((*iter).second);
112 }