Here are the data structures with brief descriptions:

Cdoor_s
Cflags_s
Cformating_s
Cinfo_param
Clinked_list
Cmaze_s
Cnumber_settings_s
Cpath_info_s
Cpath_s
Cposition_s
Crobot_path_s
Crobot_s
Croom_s
Cuser_s