bool physics_file_is_m1(void)
{
bool m1_physics = false;
// check for M1 physics
OpenedFile PhysicsFile;
short SavedType, SavedError = get_game_error(&SavedType);
if (PhysicsFileSpec.Open(PhysicsFile))
{
uint32 tag = SDL_ReadBE32(PhysicsFile.GetRWops());
switch (tag)
{
case M1_MONSTER_PHYSICS_TAG:
case M1_EFFECTS_PHYSICS_TAG:
case M1_PROJECTILE_PHYSICS_TAG:
case M1_PHYSICS_PHYSICS_TAG:
case M1_WEAPONS_PHYSICS_TAG:
m1_physics = true;
break;
default:
break;
}
PhysicsFile.Close();
}
set_game_error(SavedType, SavedError);
return m1_physics;
}
void *get_network_physics_buffer(
int32 *physics_length)
{
if (physics_file_is_m1())
{
bool success = false;
uint8 *data = NULL;
OpenedFile PhysicsFile;
if (PhysicsFileSpec.Open(PhysicsFile) &&
PhysicsFile.GetLength(*physics_length))
{
data = (uint8 *)malloc(*physics_length + 4);
SDL_RWops *ops = SDL_RWFromMem(data, *physics_length + 4);
success = SDL_WriteBE32(ops, uint32(M1_PHYSICS_MAGIC_COOKIE));
if (success)
success = SDL_WriteBE32(ops, uint32(*physics_length));
SDL_RWclose(ops);
if (success)
success = PhysicsFile.Read(*physics_length, &data[8]);
if (!success)
free(data);
}
if (!success)
{
*physics_length = 0;
return NULL;
}
return data;
}
short SavedType, SavedError = get_game_error(&SavedType);
void *data= get_flat_data(PhysicsFileSpec, false, 0);
set_game_error(SavedType, SavedError);
if(data)
{
*physics_length= get_flat_data_length(data);
} else {
*physics_length= 0;
}
return data;
}
/* preferences pointer.. */
bool w_open_preferences_file(
char *PrefName,
Typecode Type)
{
int error = 0;
bool success= true;
/* allocate space for our global structure to keep track of the prefs file */
prefInfo = NULL;
try {
prefInfo = new preferences_info;
#if defined(mac)
prefInfo->PrefsFile.SetParentToPreferences();
prefInfo->PrefsFile.SetName(PrefName,Type);
/* check for the preferences folder using FindFolder, creating it if necessary */
#elif defined(SDL)
prefInfo->PrefsFile.SetToPreferencesDir();
prefInfo->PrefsFile += PrefName;
#endif
/* does the preferences file exist? */
load_preferences(); /* Uses prefInfo.. */
if(error_pending()) {
short type;
error= get_game_error(&type);
if(type==systemError) {
if (!prefInfo->PrefsFile.Exists()) {
prefInfo->PrefsFile.Create(Type);
prefInfo->wad = create_empty_wad();
set_game_error(systemError,prefInfo->PrefsFile.GetError());
w_write_preferences_file();
}
}
else {
/* Something was invalid.. */
if (prefInfo->PrefsFile.Delete()) {
prefInfo->wad= create_empty_wad();
set_game_error(systemError, error);
w_write_preferences_file();
}
set_game_error(systemError, errNone);
}
}
} catch (...) {
dprintf("In \"catch\"");
set_game_error(systemError, memory_error());
}
if (error) {
/* if something is broken, make sure we at least return valid prefs */
if(prefInfo && !prefInfo->wad) {
prefInfo->wad= create_empty_wad();
}
}
/* Gotta bail... */
if(!prefInfo || !prefInfo->wad) {
success= false;
}
// dump_wad(prefInfo->wad);
return success;
}
void create_updated_save(QuickSave& save)
{
// read data from existing save file
struct wad_header header;
struct wad_data *game_wad, *orig_meta_wad, *new_meta_wad;
int32 game_wad_length;
std::string imagedata;
OpenedFile currentFile;
if (save.save_file.Open(currentFile))
{
if (read_wad_header(currentFile, &header))
{
game_wad = read_indexed_wad_from_file(currentFile, &header, 0, false);
if (game_wad) game_wad_length = calculate_wad_length(&header, game_wad);
orig_meta_wad = read_indexed_wad_from_file(currentFile, &header, SAVE_GAME_METADATA_INDEX, true);
if (orig_meta_wad)
{
size_t data_length;
char *raw_imagedata = (char *)extract_type_from_wad(orig_meta_wad, SAVE_IMG_TAG, &data_length);
imagedata = std::string(raw_imagedata, data_length);
}
}
close_wad_file(currentFile);
}
// create updated save file
short err = 0;
int32 offset, meta_wad_length;
struct directory_entry entries[2];
FileSpecifier TempFile;
TempFile.SetTempName(save.save_file);
if (create_wadfile(TempFile, _typecode_savegame))
{
OpenedFile SaveFile;
if(open_wad_file_for_writing(TempFile, SaveFile))
{
if (write_wad_header(SaveFile, &header))
{
offset = SIZEOF_wad_header;
set_indexed_directory_offset_and_length(&header, entries, 0, offset, game_wad_length, 0);
if (write_wad(SaveFile, &header, game_wad, offset))
{
offset += game_wad_length;
header.directory_offset= offset;
new_meta_wad = build_meta_game_wad(build_save_metadata(save), imagedata, &header, &meta_wad_length);
if (new_meta_wad)
{
set_indexed_directory_offset_and_length(&header, entries, 1, offset, meta_wad_length, SAVE_GAME_METADATA_INDEX);
if (write_wad(SaveFile, &header, new_meta_wad, offset))
{
offset += meta_wad_length;
header.directory_offset= offset;
if (write_wad_header(SaveFile, &header) && write_directorys(SaveFile, &header, entries))
{
}
}
free_wad(new_meta_wad);
}
}
free_wad(game_wad);
free_wad(orig_meta_wad);
}
err = SaveFile.GetError();
close_wad_file(SaveFile);
}
if (!err)
{
if (!TempFile.Rename(save.save_file))
{
err = 1;
}
}
}
if (err || error_pending())
{
if (!err) err = get_game_error(NULL);
alert_user(infoError, strERRORS, fileError, err);
clear_game_error();
}
}
