/********************************************************************** <BR>
  This file is part of Crack dot Com's free source code release of
  Golgotha. <a href="http://www.crack.com/golgotha_release"> <BR> for
  information about compiling & licensing issues visit this URL</a> 
  <PRE> If that doesn't help, contact Jonathan Clark at 
  golgotha_source@usa.net (Subject should have "GOLG" in it) 
***********************************************************************/

#ifndef LI_LOAD_HH
#define LI_LOAD_HH


#include "lisp/li_types.hh"

class i4_loader_class;
class i4_saver_class;

// returns a remap array for li_ type numbers from old to new
// these should be freed by li_free_type_info
li_type_number *li_load_type_info(i4_loader_class *fp, li_environment *env);
void li_free_type_info(li_type_number *remap);

// this saves the names of the types so the can be found and
// a remap can be created on load-up
void li_save_type_info(i4_saver_class *fp, li_environment *env);


// loads some object from disk : if the object type no longer exist
// it is skiped over and 0 is returned
li_object *li_load_object(i4_loader_class *fp, li_type_number *type_remap, li_environment *env);

// saves an object to disk
void li_save_object(i4_saver_class *fp, li_object *o, li_environment *env);

// if you need to save a li_type_number to disk
void li_save_type(i4_file_class *fp, li_type_number type);

// loads a li_type_number from disk
li_type_number  li_load_type(i4_file_class *fp, li_type_number *type_remap);


// loads an object from disk.  If the type is not the type requested, it is discarded
// and li_new is called to create a new instance of this type
li_object *li_load_typed_object(char *type_name, i4_loader_class *fp, 
                                li_type_number *type_remap,
                                li_environment *env);

li_object *li_load_typed_object(int type, i4_loader_class *fp, li_type_number *type_remap,
                                li_environment *env);

#endif