+#endif
+
+static void determineLevelFileInfo_Filename(struct LevelFileInfo *lfi)
+{
+ int nr = lfi->nr;
+
+ /* special case: level number is negative => check for level template file */
+ if (nr < 0)
+ {
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_RND,
+ "template.%s", LEVELFILE_EXTENSION);
+
+ /* no fallback if template file not existing */
+ return;
+ }
+
+ /* special case: check for file name/pattern specified in "levelinfo.conf" */
+ if (leveldir_current->level_filename != NULL)
+ {
+ int filetype = getFiletypeFromID(leveldir_current->level_filetype);
+
+ setLevelFileInfo_FormatLevelFilename(lfi, filetype,
+ leveldir_current->level_filename, nr);
+ if (fileExists(lfi->filename))
+ return;
+ }
+
+ /* check for native Rocks'n'Diamonds level file */
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_RND,
+ "%03d.%s", nr, LEVELFILE_EXTENSION);
+ if (fileExists(lfi->filename))
+ return;
+
+ /* check for Emerald Mine level file (V1) */
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_EM, "a%c%c",
+ 'a' + (nr / 10) % 26, '0' + nr % 10);
+ if (fileExists(lfi->filename))
+ return;
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_EM, "A%c%c",
+ 'A' + (nr / 10) % 26, '0' + nr % 10);
+ if (fileExists(lfi->filename))
+ return;
+
+ /* check for Emerald Mine level file (V2 to V5) */
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_EM, "%d", nr);
+ if (fileExists(lfi->filename))
+ return;
+
+ /* check for Emerald Mine level file (V6 / single mode) */
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_EM, "%02ds", nr);
+ if (fileExists(lfi->filename))
+ return;
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_EM, "%02dS", nr);
+ if (fileExists(lfi->filename))
+ return;
+
+ /* check for Emerald Mine level file (V6 / teamwork mode) */
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_EM, "%02dt", nr);
+ if (fileExists(lfi->filename))
+ return;
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_EM, "%02dT", nr);
+ if (fileExists(lfi->filename))
+ return;
+
+ /* check for various packed level file formats */
+ setLevelFileInfo_PackedLevelFilename(lfi, LEVEL_FILE_TYPE_UNKNOWN);
+ if (fileExists(lfi->filename))
+ return;
+
+ /* no known level file found -- use default values (and fail later) */
+ setLevelFileInfo_FormatLevelFilename(lfi, LEVEL_FILE_TYPE_RND,
+ "%03d.%s", nr, LEVELFILE_EXTENSION);
+}