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00012 #include "../stdafx.h"
00013 #include "../debug.h"
00014 #include "../fileio_func.h"
00015 #include "../network/network.h"
00016 #include "../core/random_func.hpp"
00017
00018 #include <squirrel.h>
00019 #include "../script/squirrel.hpp"
00020 #include "../script/squirrel_helper.hpp"
00021 #include "../script/squirrel_class.hpp"
00022 #include "ai_info.hpp"
00023 #include "ai_scanner.hpp"
00024 #include "api/ai_controller.hpp"
00025
00026 void AIScanner::RescanAIDir()
00027 {
00028 this->ScanScriptDir("info.nut", AI_DIR);
00029 this->ScanScriptDir("library.nut", AI_LIBRARY_DIR);
00030 }
00031
00032 AIScanner::AIScanner() :
00033 ScriptScanner(),
00034 info_dummy(NULL)
00035 {
00036
00037 DefSQClass <AIInfo> SQAIInfo("AIInfo");
00038 SQAIInfo.PreRegister(engine);
00039 SQAIInfo.AddConstructor<void (AIInfo::*)(), 1>(engine, "x");
00040 SQAIInfo.DefSQAdvancedMethod(this->engine, &AIInfo::AddSetting, "AddSetting");
00041 SQAIInfo.DefSQAdvancedMethod(this->engine, &AIInfo::AddLabels, "AddLabels");
00042 SQAIInfo.DefSQConst(engine, AICONFIG_RANDOM, "AICONFIG_RANDOM");
00043 SQAIInfo.DefSQConst(engine, AICONFIG_BOOLEAN, "AICONFIG_BOOLEAN");
00044 SQAIInfo.PostRegister(engine);
00045 this->engine->AddMethod("RegisterAI", &AIInfo::Constructor, 2, "tx");
00046 this->engine->AddMethod("RegisterDummyAI", &AIInfo::DummyConstructor, 2, "tx");
00047
00048
00049 this->engine->AddClassBegin("AILibrary");
00050 this->engine->AddClassEnd();
00051 this->engine->AddMethod("RegisterLibrary", &AILibrary::Constructor, 2, "tx");
00052
00053
00054 this->RescanAIDir();
00055
00056
00057 this->engine->ResetCrashed();
00058 strecpy(this->main_script, "%_dummy", lastof(this->main_script));
00059 extern void AI_CreateAIInfoDummy(HSQUIRRELVM vm);
00060 AI_CreateAIInfoDummy(this->engine->GetVM());
00061 }
00062
00063 AIScanner::~AIScanner()
00064 {
00065 AIInfoList::iterator it = this->info_list.begin();
00066 for (; it != this->info_list.end(); it++) {
00067 free((void *)(*it).first);
00068 delete (*it).second;
00069 }
00070 it = this->info_single_list.begin();
00071 for (; it != this->info_single_list.end(); it++) {
00072 free((void *)(*it).first);
00073 }
00074 AILibraryList::iterator lit = this->library_list.begin();
00075 for (; lit != this->library_list.end(); lit++) {
00076 free((void *)(*lit).first);
00077 delete (*lit).second;
00078 }
00079
00080 delete this->info_dummy;
00081 }
00082
00083 bool AIScanner::ImportLibrary(const char *library, const char *class_name, int version, HSQUIRRELVM vm, AIController *controller)
00084 {
00085
00086 char library_name[1024];
00087 snprintf(library_name, sizeof(library_name), "%s.%d", library, version);
00088 strtolower(library_name);
00089
00090
00091 AILibraryList::iterator iter = this->library_list.find(library_name);
00092 if (iter == this->library_list.end()) {
00093 char error[1024];
00094
00095
00096 iter = this->library_list.find(library);
00097 if (iter == this->library_list.end()) {
00098 snprintf(error, sizeof(error), "couldn't find library '%s'", library);
00099 } else {
00100 snprintf(error, sizeof(error), "couldn't find library '%s' version %d. The latest version available is %d", library, version, (*iter).second->GetVersion());
00101 }
00102 sq_throwerror(vm, OTTD2SQ(error));
00103 return false;
00104 }
00105
00106
00107 HSQOBJECT parent;
00108 sq_getstackobj(vm, 1, &parent);
00109
00110 char fake_class[1024];
00111 int next_number;
00112
00113 if (!controller->LoadedLibrary(library_name, &next_number, &fake_class[0], sizeof(fake_class))) {
00114
00115 snprintf(fake_class, sizeof(fake_class), "_internalNA%d", next_number);
00116
00117
00118 sq_pushroottable(vm);
00119 sq_pushstring(vm, OTTD2SQ(fake_class), -1);
00120 sq_newclass(vm, SQFalse);
00121
00122 if (!Squirrel::LoadScript(vm, (*iter).second->GetMainScript(), false)) {
00123 char error[1024];
00124 snprintf(error, sizeof(error), "there was a compile error when importing '%s' version %d", library, version);
00125 sq_throwerror(vm, OTTD2SQ(error));
00126 return false;
00127 }
00128
00129 sq_newslot(vm, -3, SQFalse);
00130 sq_pop(vm, 1);
00131
00132 controller->AddLoadedLibrary(library_name, fake_class);
00133 }
00134
00135
00136 sq_pushroottable(vm);
00137 sq_pushstring(vm, OTTD2SQ(fake_class), -1);
00138 if (SQ_FAILED(sq_get(vm, -2))) {
00139 sq_throwerror(vm, _SC("internal error assigning library class"));
00140 return false;
00141 }
00142 sq_pushstring(vm, OTTD2SQ((*iter).second->GetInstanceName()), -1);
00143 if (SQ_FAILED(sq_get(vm, -2))) {
00144 char error[1024];
00145 snprintf(error, sizeof(error), "unable to find class '%s' in the library '%s' version %d", (*iter).second->GetInstanceName(), library, version);
00146 sq_throwerror(vm, OTTD2SQ(error));
00147 return false;
00148 }
00149 HSQOBJECT obj;
00150 sq_getstackobj(vm, -1, &obj);
00151 sq_pop(vm, 3);
00152
00153 if (StrEmpty(class_name)) {
00154 sq_pushobject(vm, obj);
00155 return true;
00156 }
00157
00158
00159 sq_pushobject(vm, parent);
00160 sq_pushstring(vm, OTTD2SQ(class_name), -1);
00161 sq_pushobject(vm, obj);
00162 sq_newclass(vm, SQTrue);
00163 sq_newslot(vm, -3, SQFalse);
00164 sq_pop(vm, 1);
00165
00166 sq_pushobject(vm, obj);
00167 return true;
00168 }
00169
00170 void AIScanner::RegisterLibrary(AILibrary *library)
00171 {
00172 char library_name[1024];
00173 snprintf(library_name, sizeof(library_name), "%s.%s.%d", library->GetCategory(), library->GetInstanceName(), library->GetVersion());
00174 strtolower(library_name);
00175
00176 if (this->library_list.find(library_name) != this->library_list.end()) {
00177
00178 #ifdef WIN32
00179
00180 if (strcasecmp(this->library_list[library_name]->GetMainScript(), library->GetMainScript()) == 0) {
00181 #else
00182 if (strcmp(this->library_list[library_name]->GetMainScript(), library->GetMainScript()) == 0) {
00183 #endif
00184 delete library;
00185 return;
00186 }
00187
00188 DEBUG(ai, 0, "Registering two libraries with the same name and version");
00189 DEBUG(ai, 0, " 1: %s", this->library_list[library_name]->GetMainScript());
00190 DEBUG(ai, 0, " 2: %s", library->GetMainScript());
00191 DEBUG(ai, 0, "The first is taking precedence.");
00192
00193 delete library;
00194 return;
00195 }
00196
00197 this->library_list[strdup(library_name)] = library;
00198 }
00199
00200 void AIScanner::RegisterAI(AIInfo *info)
00201 {
00202 char ai_name[1024];
00203 snprintf(ai_name, sizeof(ai_name), "%s.%d", info->GetName(), info->GetVersion());
00204 strtolower(ai_name);
00205
00206
00207 if (strlen(info->GetShortName()) != 4) {
00208 DEBUG(ai, 0, "The AI '%s' returned a string from GetShortName() which is not four characaters. Unable to load the AI.", info->GetName());
00209 delete info;
00210 return;
00211 }
00212
00213 if (this->info_list.find(ai_name) != this->info_list.end()) {
00214
00215 #ifdef WIN32
00216
00217 if (strcasecmp(this->info_list[ai_name]->GetMainScript(), info->GetMainScript()) == 0) {
00218 #else
00219 if (strcmp(this->info_list[ai_name]->GetMainScript(), info->GetMainScript()) == 0) {
00220 #endif
00221 delete info;
00222 return;
00223 }
00224
00225 DEBUG(ai, 0, "Registering two AIs with the same name and version");
00226 DEBUG(ai, 0, " 1: %s", this->info_list[ai_name]->GetMainScript());
00227 DEBUG(ai, 0, " 2: %s", info->GetMainScript());
00228 DEBUG(ai, 0, "The first is taking precedence.");
00229
00230 delete info;
00231 return;
00232 }
00233
00234 this->info_list[strdup(ai_name)] = info;
00235
00236
00237
00238 snprintf(ai_name, sizeof(ai_name), "%s", info->GetName());
00239 strtolower(ai_name);
00240 if (this->info_single_list.find(ai_name) == this->info_single_list.end()) {
00241 this->info_single_list[strdup(ai_name)] = info;
00242 } else if (this->info_single_list[ai_name]->GetVersion() < info->GetVersion()) {
00243 this->info_single_list[ai_name] = info;
00244 }
00245 }
00246
00247 AIInfo *AIScanner::SelectRandomAI() const
00248 {
00249 uint num_random_ais = 0;
00250 for (AIInfoList::const_iterator it = this->info_single_list.begin(); it != this->info_single_list.end(); it++) {
00251 if (it->second->UseAsRandomAI()) num_random_ais++;
00252 }
00253
00254 if (num_random_ais == 0) {
00255 DEBUG(ai, 0, "No suitable AI found, loading 'dummy' AI.");
00256 return this->info_dummy;
00257 }
00258
00259
00260 uint pos;
00261 if (_networking) {
00262 pos = InteractiveRandomRange(num_random_ais);
00263 } else {
00264 pos = RandomRange(num_random_ais);
00265 }
00266
00267
00268 AIInfoList::const_iterator it = this->info_single_list.begin();
00269 while (!it->second->UseAsRandomAI()) it++;
00270 for (; pos > 0; pos--) {
00271 it++;
00272 while (!it->second->UseAsRandomAI()) it++;
00273 }
00274 return (*it).second;
00275 }
00276
00277 AIInfo *AIScanner::FindInfo(const char *nameParam, int versionParam)
00278 {
00279 if (this->info_list.size() == 0) return NULL;
00280 if (nameParam == NULL) return NULL;
00281
00282 char ai_name[1024];
00283 ttd_strlcpy(ai_name, nameParam, sizeof(ai_name));
00284 strtolower(ai_name);
00285
00286 AIInfo *info = NULL;
00287 int version = -1;
00288
00289 if (versionParam == -1) {
00290
00291 if (this->info_single_list.find(ai_name) != this->info_single_list.end()) return this->info_single_list[ai_name];
00292
00293
00294 char *e = strrchr(ai_name, '.');
00295 if (e == NULL) return NULL;
00296 *e = '\0';
00297 e++;
00298 versionParam = atoi(e);
00299
00300 }
00301
00302
00303 char ai_name_tmp[1024];
00304 snprintf(ai_name_tmp, sizeof(ai_name_tmp), "%s.%d", ai_name, versionParam);
00305 strtolower(ai_name_tmp);
00306 if (this->info_list.find(ai_name_tmp) != this->info_list.end()) return this->info_list[ai_name_tmp];
00307
00308
00309
00310 AIInfoList::iterator it = this->info_list.begin();
00311 for (; it != this->info_list.end(); it++) {
00312 char ai_name_compare[1024];
00313 snprintf(ai_name_compare, sizeof(ai_name_compare), "%s", (*it).second->GetName());
00314 strtolower(ai_name_compare);
00315
00316 if (strcasecmp(ai_name, ai_name_compare) == 0 && (*it).second->CanLoadFromVersion(versionParam) && (version == -1 || (*it).second->GetVersion() > version)) {
00317 version = (*it).second->GetVersion();
00318 info = (*it).second;
00319 }
00320 }
00321
00322 return info;
00323 }
00324
00325 char *AIScanner::GetAIConsoleList(char *p, const char *last) const
00326 {
00327 p += seprintf(p, last, "List of AIs:\n");
00328 AIInfoList::const_iterator it = this->info_list.begin();
00329 for (; it != this->info_list.end(); it++) {
00330 AIInfo *i = (*it).second;
00331 p += seprintf(p, last, "%10s (v%d): %s\n", i->GetName(), i->GetVersion(), i->GetDescription());
00332 }
00333 p += seprintf(p, last, "\n");
00334
00335 return p;
00336 }
00337
00338 #if defined(ENABLE_NETWORK)
00339 #include "../network/network_content.h"
00340 #include "../3rdparty/md5/md5.h"
00341 #include "../tar_type.h"
00342
00344 struct AIFileChecksumCreator : FileScanner {
00345 byte md5sum[16];
00346
00351 AIFileChecksumCreator()
00352 {
00353 memset(this->md5sum, 0, sizeof(this->md5sum));
00354 }
00355
00356
00357 virtual bool AddFile(const char *filename, size_t basepath_length)
00358 {
00359 Md5 checksum;
00360 uint8 buffer[1024];
00361 size_t len, size;
00362 byte tmp_md5sum[16];
00363
00364
00365 FILE *f = FioFOpenFile(filename, "rb", DATA_DIR, &size);
00366 if (f == NULL) return false;
00367
00368
00369 while ((len = fread(buffer, 1, (size > sizeof(buffer)) ? sizeof(buffer) : size, f)) != 0 && size != 0) {
00370 size -= len;
00371 checksum.Append(buffer, len);
00372 }
00373 checksum.Finish(tmp_md5sum);
00374
00375 FioFCloseFile(f);
00376
00377
00378 for (uint i = 0; i < sizeof(md5sum); i++) this->md5sum[i] ^= tmp_md5sum[i];
00379
00380 return true;
00381 }
00382 };
00383
00392 static bool IsSameAI(const ContentInfo *ci, bool md5sum, AIFileInfo *info)
00393 {
00394 uint32 id = 0;
00395 const char *str = info->GetShortName();
00396 for (int j = 0; j < 4 && *str != '\0'; j++, str++) id |= *str << (8 * j);
00397
00398 if (id != ci->unique_id) return false;
00399 if (!md5sum) return true;
00400
00401 AIFileChecksumCreator checksum;
00402 char path[MAX_PATH];
00403 strecpy(path, info->GetMainScript(), lastof(path));
00404
00405
00406
00407 *strrchr(path, PATHSEPCHAR) = '\0';
00408 *strrchr(path, PATHSEPCHAR) = '\0';
00409 TarList::iterator iter = _tar_list.find(path);
00410
00411 if (iter != _tar_list.end()) {
00412
00413
00414 TarFileList::iterator tar;
00415 FOR_ALL_TARS(tar) {
00416
00417 if (tar->second.tar_filename != iter->first) continue;
00418
00419
00420 const char *ext = strrchr(tar->first.c_str(), '.');
00421 if (ext == NULL || strcasecmp(ext, ".nut") != 0) continue;
00422
00423
00424 seprintf(path, lastof(path), "%s%c%s", tar->second.tar_filename, PATHSEPCHAR, tar->first.c_str());
00425 checksum.AddFile(path, 0);
00426 }
00427 } else {
00428
00429
00430 path[strlen(path)] = PATHSEPCHAR;
00431 checksum.Scan(".nut", path);
00432 }
00433
00434 return memcmp(ci->md5sum, checksum.md5sum, sizeof(ci->md5sum)) == 0;
00435 }
00436
00443 bool AIScanner::HasAI(const ContentInfo *ci, bool md5sum)
00444 {
00445 switch (ci->type) {
00446 case CONTENT_TYPE_AI:
00447 for (AIInfoList::iterator it = this->info_list.begin(); it != this->info_list.end(); it++) {
00448 if (IsSameAI(ci, md5sum, (*it).second)) return true;
00449 }
00450 return false;
00451
00452 case CONTENT_TYPE_AI_LIBRARY:
00453 for (AILibraryList::iterator it = this->library_list.begin(); it != this->library_list.end(); it++) {
00454 if (IsSameAI(ci, md5sum, (*it).second)) return true;
00455 }
00456 return false;
00457
00458 default:
00459 NOT_REACHED();
00460 }
00461 }
00462
00469 bool AI::HasAI(const ContentInfo *ci, bool md5sum)
00470 {
00471 return AI::ai_scanner->HasAI(ci, md5sum);
00472 }
00473
00474 #endif