-boolean UpdateUserLevelSet(char *level_subdir,
- char *level_name, char *level_author,
- int num_levels, int first_level_nr)
+static boolean AddUserLevelSetToLevelInfoExt(char *level_subdir_new)
+{
+ // get level info tree node of first (original) user level set
+ char *level_subdir_old = getLoginName();
+ LevelDirTree *leveldir_old = getTreeInfoFromIdentifier(leveldir_first,
+ level_subdir_old);
+ if (leveldir_old == NULL) // should not happen
+ return FALSE;
+
+ int draw_deactivation_mask = GetDrawDeactivationMask();
+
+ // override draw deactivation mask (temporarily disable drawing)
+ SetDrawDeactivationMask(REDRAW_ALL);
+
+ // load new level set config and add it next to first user level set
+ LoadLevelInfoFromLevelConf(&leveldir_old->next, NULL,
+ leveldir_old->basepath, level_subdir_new);
+
+ // set draw deactivation mask to previous value
+ SetDrawDeactivationMask(draw_deactivation_mask);
+
+ // get level info tree node of newly added user level set
+ LevelDirTree *leveldir_new = getTreeInfoFromIdentifier(leveldir_first,
+ level_subdir_new);
+ if (leveldir_new == NULL) // should not happen
+ return FALSE;
+
+ // correct top link and parent node link of newly created tree node
+ leveldir_new->node_top = leveldir_old->node_top;
+ leveldir_new->node_parent = leveldir_old->node_parent;
+
+ // sort level info tree to adjust position of newly added level set
+ sortTreeInfo(&leveldir_first);
+
+ return TRUE;
+}
+
+void AddUserLevelSetToLevelInfo(char *level_subdir_new)
+{
+ if (!AddUserLevelSetToLevelInfoExt(level_subdir_new))
+ Error(ERR_EXIT, "internal level set structure corrupted -- aborting");
+}
+
+boolean UpdateUserLevelSet(char *level_subdir, char *level_name,
+ char *level_author, int num_levels)