-#else
-
-boolean LoadNativeLevel_SP(char *filename, int level_pos,
- boolean level_info_only)
-{
- FILE *file;
- int i, l, x, y;
- char name_first, name_last;
- struct LevelInfo_SP multipart_level;
- int multipart_xpos, multipart_ypos;
- boolean is_multipart_level;
- boolean is_first_part;
- boolean reading_multipart_level = FALSE;
- boolean use_empty_level = FALSE;
- LevelInfoType *header = &native_sp_level.header;
- boolean is_single_level_file = (strSuffixLower(filename, ".sp") ||
- strSuffixLower(filename, ".mpx"));
- boolean demo_available = is_single_level_file;
- boolean is_mpx_file = strSuffixLower(filename, ".mpx");
- int file_seek_pos = level_pos * SP_STD_LEVEL_SIZE;
- int level_width = SP_STD_PLAYFIELD_WIDTH;
- int level_height = SP_STD_PLAYFIELD_HEIGHT;
-
- /* always start with reliable default values */
- setLevelInfoToDefaults_SP();
- copyInternalEngineVars_SP();
-
- if (!(file = fopen(filename, MODE_READ)))
- {
- if (!level_info_only)
- Error(ERR_WARN, "cannot open file '%s' -- using empty level", filename);
-
- return FALSE;
- }
-
- if (is_mpx_file)
- {
- char mpx_chunk_name[4 + 1];
- int mpx_version;
- int mpx_level_count;
- LevelDescriptor *mpx_level_desc;
-
- getFileChunkBE(file, mpx_chunk_name, NULL);
-
- if (!strEqual(mpx_chunk_name, "MPX "))
- {
- Error(ERR_WARN, "cannot find MPX ID in file '%s' -- using empty level",
- filename);
-
- return FALSE;
- }
-
- mpx_version = getFile16BitLE(file);
-
- if (mpx_version != 1)
- {
- Error(ERR_WARN, "unknown MPX version in file '%s' -- using empty level",
- filename);
-
- return FALSE;
- }
-
- mpx_level_count = getFile16BitLE(file);
-
- if (mpx_level_count < 1)
- {
- Error(ERR_WARN, "no MPX levels found in file '%s' -- using empty level",
- filename);
-
- return FALSE;
- }
-
- if (level_pos >= mpx_level_count)
- {
- Error(ERR_WARN, "MPX level not found in file '%s' -- using empty level",
- filename);
-
- return FALSE;
- }
-
- mpx_level_desc = checked_calloc(mpx_level_count * sizeof(LevelDescriptor));
-
- for (i = 0; i < mpx_level_count; i++)
- {
- LevelDescriptor *ldesc = &mpx_level_desc[i];
-
- ldesc->Width = getFile16BitLE(file);
- ldesc->Height = getFile16BitLE(file);
- ldesc->OffSet = getFile32BitLE(file); /* starts with 1, not with 0 */
- ldesc->Size = getFile32BitLE(file);
- }
-
- level_width = mpx_level_desc[level_pos].Width;
- level_height = mpx_level_desc[level_pos].Height;
-
- file_seek_pos = mpx_level_desc[level_pos].OffSet - 1;
- }
-
- /* position file stream to the requested level (in case of level package) */
- if (fseek(file, file_seek_pos, SEEK_SET) != 0)
- {
- Error(ERR_WARN, "cannot fseek in file '%s' -- using empty level", filename);
-
- return FALSE;
- }
-
- /* there exist Supaplex level package files with multi-part levels which
- can be detected as follows: instead of leading and trailing dashes ('-')
- to pad the level name, they have leading and trailing numbers which are
- the x and y coordinations of the current part of the multi-part level;
- if there are '?' characters instead of numbers on the left or right side
- of the level name, the multi-part level consists of only horizontal or
- vertical parts */
-
- for (l = level_pos; l < SP_NUM_LEVELS_PER_PACKAGE; l++)
- {
- LoadNativeLevelFromFileStream_SP(file, level_width, level_height,
- demo_available);
-
- /* check if this level is a part of a bigger multi-part level */
-
- if (is_single_level_file)
- break;
-
- name_first = header->LevelTitle[0];
- name_last = header->LevelTitle[SP_LEVEL_NAME_LEN - 1];
-
- is_multipart_level =
- ((name_first == '?' || (name_first >= '0' && name_first <= '9')) &&
- (name_last == '?' || (name_last >= '0' && name_last <= '9')));
-
- is_first_part =
- ((name_first == '?' || name_first == '1') &&
- (name_last == '?' || name_last == '1'));
-
- if (is_multipart_level)
- {
- /* correct leading multipart level meta information in level name */
- for (i = 0;
- i < SP_LEVEL_NAME_LEN && header->LevelTitle[i] == name_first;
- i++)
- header->LevelTitle[i] = '-';
-
- /* correct trailing multipart level meta information in level name */
- for (i = SP_LEVEL_NAME_LEN - 1;
- i >= 0 && header->LevelTitle[i] == name_last;
- i--)
- header->LevelTitle[i] = '-';
- }
-
- /* ---------- check for normal single level ---------- */
-
- if (!reading_multipart_level && !is_multipart_level)
- {
- /* the current level is simply a normal single-part level, and we are
- not reading a multi-part level yet, so return the level as it is */
-
- break;
- }
-
- /* ---------- check for empty level (unused multi-part) ---------- */
-
- if (!reading_multipart_level && is_multipart_level && !is_first_part)
- {
- /* this is a part of a multi-part level, but not the first part
- (and we are not already reading parts of a multi-part level);
- in this case, use an empty level instead of the single part */
-
- use_empty_level = TRUE;
-
- break;
- }
-
- /* ---------- check for finished multi-part level ---------- */
-
- if (reading_multipart_level &&
- (!is_multipart_level ||
- !strEqualN(header->LevelTitle, multipart_level.header.LevelTitle,
- SP_LEVEL_NAME_LEN)))
- {
- /* we are already reading parts of a multi-part level, but this level is
- either not a multi-part level, or a part of a different multi-part
- level; in both cases, the multi-part level seems to be complete */
-
- break;
- }
-
- /* ---------- here we have one part of a multi-part level ---------- */
-
- reading_multipart_level = TRUE;
-
- if (is_first_part) /* start with first part of new multi-part level */
- {
- /* copy level info structure from first part */
- multipart_level = native_sp_level;
-
- /* clear playfield of new multi-part level */
- for (x = 0; x < SP_MAX_PLAYFIELD_WIDTH; x++)
- for (y = 0; y < SP_MAX_PLAYFIELD_HEIGHT; y++)
- multipart_level.playfield[x][y] = fiSpace;
- }
-
- if (name_first == '?')
- name_first = '1';
- if (name_last == '?')
- name_last = '1';
-
- multipart_xpos = (int)(name_first - '0');
- multipart_ypos = (int)(name_last - '0');
-
-#if 0
- printf("----------> part (%d/%d) of multi-part level '%s'\n",
- multipart_xpos, multipart_ypos, multipart_level.header.LevelTitle);
-#endif
-
- if (multipart_xpos * SP_STD_PLAYFIELD_WIDTH > SP_MAX_PLAYFIELD_WIDTH ||
- multipart_ypos * SP_STD_PLAYFIELD_HEIGHT > SP_MAX_PLAYFIELD_HEIGHT)
- {
- Error(ERR_WARN, "multi-part level is too big -- ignoring part of it");
-
- break;
- }
-
- multipart_level.width = MAX(multipart_level.width,
- multipart_xpos * SP_STD_PLAYFIELD_WIDTH);
- multipart_level.height = MAX(multipart_level.height,
- multipart_ypos * SP_STD_PLAYFIELD_HEIGHT);
-
- /* copy level part at the right position of multi-part level */
- for (x = 0; x < SP_STD_PLAYFIELD_WIDTH; x++)
- {
- for (y = 0; y < SP_STD_PLAYFIELD_HEIGHT; y++)
- {
- int start_x = (multipart_xpos - 1) * SP_STD_PLAYFIELD_WIDTH;
- int start_y = (multipart_ypos - 1) * SP_STD_PLAYFIELD_HEIGHT;
-
- multipart_level.playfield[start_x + x][start_y + y] =
- native_sp_level.playfield[x][y];
- }
- }
- }
-
- fclose(file);
-
- if (use_empty_level)
- {
- setLevelInfoToDefaults_SP();
-
- Error(ERR_WARN, "single part of multi-part level -- using empty level");
- }
-
- if (reading_multipart_level)
- native_sp_level = multipart_level;
-
- copyInternalEngineVars_SP();
-
- return TRUE;
-}
-
-#endif
-