vfs: support .pk3dir like in darkplaces engine - directories auto-added to the search path

plugins/vfspk3/vfs.cpp

@@ -353,6 +353,26 @@ void InitDirectory(const char* directory, ArchiveModules& archiveModules)
           break;
 
         const char *ext = strrchr (name, '.');
+
+	if(ext && !string_compare_nocase_upper(ext, ".pk3dir"))
+	{
+	  if (g_numDirs == (VFS_MAXDIRS-1))
+	    continue;
+	  snprintf(g_strDirs[g_numDirs], PATH_MAX, "%s%s/", path, name);
+	  g_strDirs[g_numDirs][PATH_MAX] = '\0';
+	  FixDOSName (g_strDirs[g_numDirs]);
+	  AddSlash (g_strDirs[g_numDirs]);
+	  g_numDirs++;
+
+	  {
+	    archive_entry_t entry;
+	    entry.name = g_strDirs[g_numDirs-1];
+	    entry.archive = OpenArchive(g_strDirs[g_numDirs-1]);
+	    entry.is_pakfile = false;
+	    g_archives.push_back(entry);
+	  }
+	}
+
         if ((ext == 0) || *(++ext) == '\0' || GetArchiveTable(archiveModules, ext) == 0)
           continue;
 

tools/quake3/common/vfs.c

@@ -195,6 +195,18 @@ void vfsInitDirectory (const char *path)
 
         {
           char *ext = strrchr (dirlist, '.');
+
+	  if(ext && !Q_stricmp(ext, ".pk3dir"))
+	  {
+	    if (g_numDirs == (VFS_MAXDIRS-1))
+	      continue;
+	    snprintf(g_strDirs[g_numDirs], PATH_MAX, "%s/%s", path, name);
+	    g_strDirs[g_numDirs][PATH_MAX] = '\0';
+	    vfsFixDOSName (g_strDirs[g_numDirs]);
+	    vfsAddSlash (g_strDirs[g_numDirs]);
+	    ++g_numDirs;
+	  }
+
           if ((ext == NULL) || (Q_stricmp (ext, ".pk3") != 0))
             continue;
         }

tools/quake3/common/vfs.h

@@ -31,7 +31,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef _VFS_H_
 #define _VFS_H_
 
-#define VFS_MAXDIRS 8
+#define VFS_MAXDIRS 64
 
 void vfsInitDirectory (const char *path);
 void vfsShutdown ();