From 8edec29c784f2ac4d1ab276e4bc901af924ebd56 Mon Sep 17 00:00:00 2001 From: Curtis McEnroe Date: Thu, 28 Mar 2019 20:41:12 -0400 Subject: Factor out path searching --- path.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 path.h (limited to 'path.h') diff --git a/path.h b/path.h new file mode 100644 index 0000000..05caa62 --- /dev/null +++ b/path.h @@ -0,0 +1,57 @@ +/* Copyright (C) 2019 C. McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#ifndef PATH_H +#define PATH_H + +#include +#include +#include +#include + +static inline SDL_RWops * +pathSearch(const char *base, const char *pref, const char **names, size_t len) { + const char *paths[3] = { pref, base, "" }; + for (size_t i = 0; i < 3; ++i) { + for (size_t j = 0; j < len; ++j) { + char path[1024]; + snprintf(path, sizeof(path), "%s%s", paths[i], names[j]); + SDL_RWops *rw = SDL_RWFromFile(path, "rb"); + if (rw) return rw; + } + } + return NULL; +} + +static inline SDL_RWops * +pathFind(const char *base, const char *pref, const char *name) { + return pathSearch(base, pref, &name, 1); +} + +static inline SDL_RWops *pathCards(const char *base, const char *pref) { + const char *names[3] = { "CARDS.DLL", "SOL.EXE", "cards.dll" }; + SDL_RWops *rw = pathSearch(base, pref, names, 3); + if (rw) return rw; + char msg[4096]; + snprintf( + msg, sizeof(msg), "%s or %s not found in:\n%s\n%s", + names[0], names[1], pref, base + ); + SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Cards", msg, NULL); + return NULL; +} + +#endif -- cgit 1.4.1