+ int i;
+
+ for (i = 0; i < MAX_LEVEL_NAME_LEN; i++)
+ level->name[i] = getFile8Bit(file);
+ level->name[MAX_LEVEL_NAME_LEN] = 0;
+
+ return chunk_size;
+}
+
+static int LoadLevel_AUTH(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int i;
+
+ for (i = 0; i < MAX_LEVEL_AUTHOR_LEN; i++)
+ level->author[i] = getFile8Bit(file);
+ level->author[MAX_LEVEL_AUTHOR_LEN] = 0;
+
+ return chunk_size;
+}
+
+static int LoadLevel_BODY(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int x, y;
+ int chunk_size_expected = level->fieldx * level->fieldy;
+
+ /* Note: "chunk_size" was wrong before version 2.0 when elements are
+ stored with 16-bit encoding (and should be twice as big then).
+ Even worse, playfield data was stored 16-bit when only yamyam content
+ contained 16-bit elements and vice versa. */
+
+ if (level->encoding_16bit_field && level->file_version >= FILE_VERSION_2_0)
+ chunk_size_expected *= 2;
+
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size);
+ return chunk_size_expected;
+ }
+
+ for (y = 0; y < level->fieldy; y++)
+ for (x = 0; x < level->fieldx; x++)
+ level->field[x][y] =
+ getMappedElement(level->encoding_16bit_field ? getFile16BitBE(file) :
+ getFile8Bit(file));
+ return chunk_size;
+}
+
+static int LoadLevel_CONT(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int i, x, y;
+ int header_size = 4;
+ int content_size = MAX_ELEMENT_CONTENTS * 3 * 3;
+ int chunk_size_expected = header_size + content_size;
+
+ /* Note: "chunk_size" was wrong before version 2.0 when elements are
+ stored with 16-bit encoding (and should be twice as big then).
+ Even worse, playfield data was stored 16-bit when only yamyam content
+ contained 16-bit elements and vice versa. */
+
+ if (level->encoding_16bit_field && level->file_version >= FILE_VERSION_2_0)
+ chunk_size_expected += content_size;
+
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size);
+ return chunk_size_expected;
+ }
+
+ getFile8Bit(file);
+ level->num_yamyam_contents = getFile8Bit(file);
+ getFile8Bit(file);
+ getFile8Bit(file);
+
+ /* correct invalid number of content fields -- should never happen */
+ if (level->num_yamyam_contents < 1 ||
+ level->num_yamyam_contents > MAX_ELEMENT_CONTENTS)
+ level->num_yamyam_contents = STD_ELEMENT_CONTENTS;
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ level->yamyam_content[i].e[x][y] =
+ getMappedElement(level->encoding_16bit_field ?
+ getFile16BitBE(file) : getFile8Bit(file));
+ return chunk_size;
+}
+
+static int LoadLevel_CNT2(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int i, x, y;
+ int element;
+ int num_contents;
+#if 0
+ int content_xsize, content_ysize;
+#endif
+ int content_array[MAX_ELEMENT_CONTENTS][3][3];
+
+ element = getMappedElement(getFile16BitBE(file));
+ num_contents = getFile8Bit(file);
+#if 1
+ getFile8Bit(file); /* content x size (unused) */
+ getFile8Bit(file); /* content y size (unused) */
+#else
+ content_xsize = getFile8Bit(file);
+ content_ysize = getFile8Bit(file);
+#endif
+
+ ReadUnusedBytesFromFile(file, LEVEL_CHUNK_CNT2_UNUSED);
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ content_array[i][x][y] = getMappedElement(getFile16BitBE(file));
+
+ /* correct invalid number of content fields -- should never happen */
+ if (num_contents < 1 || num_contents > MAX_ELEMENT_CONTENTS)
+ num_contents = STD_ELEMENT_CONTENTS;
+
+ if (element == EL_YAMYAM)
+ {
+ level->num_yamyam_contents = num_contents;
+
+ for (i = 0; i < num_contents; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ level->yamyam_content[i].e[x][y] = content_array[i][x][y];
+ }
+ else if (element == EL_BD_AMOEBA)
+ {
+ level->amoeba_content = content_array[0][0][0];
+ }
+ else
+ {
+ Error(ERR_WARN, "cannot load content for element '%d'", element);
+ }
+
+ return chunk_size;
+}
+
+static int LoadLevel_CNT3(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int i;
+ int element;
+ int envelope_nr;
+ int envelope_len;
+ int chunk_size_expected;
+
+ element = getMappedElement(getFile16BitBE(file));
+ if (!IS_ENVELOPE(element))
+ element = EL_ENVELOPE_1;
+
+ envelope_nr = element - EL_ENVELOPE_1;
+
+ envelope_len = getFile16BitBE(file);
+
+ level->envelope[envelope_nr].xsize = getFile8Bit(file);
+ level->envelope[envelope_nr].ysize = getFile8Bit(file);
+
+ ReadUnusedBytesFromFile(file, LEVEL_CHUNK_CNT3_UNUSED);
+
+ chunk_size_expected = LEVEL_CHUNK_CNT3_SIZE(envelope_len);
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size - LEVEL_CHUNK_CNT3_HEADER);
+ return chunk_size_expected;
+ }
+
+ for (i = 0; i < envelope_len; i++)
+ level->envelope[envelope_nr].text[i] = getFile8Bit(file);
+
+ return chunk_size;
+}
+
+static int LoadLevel_CUS1(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int num_changed_custom_elements = getFile16BitBE(file);
+ int chunk_size_expected = 2 + num_changed_custom_elements * 6;
+ int i;
+
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size - 2);
+ return chunk_size_expected;
+ }
+
+ for (i = 0; i < num_changed_custom_elements; i++)
+ {
+ int element = getMappedElement(getFile16BitBE(file));
+ int properties = getFile32BitBE(file);
+
+ if (IS_CUSTOM_ELEMENT(element))
+ element_info[element].properties[EP_BITFIELD_BASE_NR] = properties;
+ else
+ Error(ERR_WARN, "invalid custom element number %d", element);
+
+ /* older game versions that wrote level files with CUS1 chunks used
+ different default push delay values (not yet stored in level file) */
+ element_info[element].push_delay_fixed = 2;
+ element_info[element].push_delay_random = 8;
+ }
+
+ return chunk_size;
+}
+
+static int LoadLevel_CUS2(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int num_changed_custom_elements = getFile16BitBE(file);
+ int chunk_size_expected = 2 + num_changed_custom_elements * 4;
+ int i;
+
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size - 2);
+ return chunk_size_expected;
+ }
+
+ for (i = 0; i < num_changed_custom_elements; i++)
+ {
+ int element = getMappedElement(getFile16BitBE(file));
+ int custom_target_element = getMappedElement(getFile16BitBE(file));
+
+ if (IS_CUSTOM_ELEMENT(element))
+ element_info[element].change->target_element = custom_target_element;
+ else
+ Error(ERR_WARN, "invalid custom element number %d", element);
+ }
+
+ return chunk_size;
+}
+
+static int LoadLevel_CUS3(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int num_changed_custom_elements = getFile16BitBE(file);
+ int chunk_size_expected = LEVEL_CHUNK_CUS3_SIZE(num_changed_custom_elements);
+ int i, j, x, y;
+
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size - 2);
+ return chunk_size_expected;
+ }
+
+ for (i = 0; i < num_changed_custom_elements; i++)
+ {
+ int element = getMappedElement(getFile16BitBE(file));
+ struct ElementInfo *ei = &element_info[element];
+ unsigned int event_bits;
+
+ if (!IS_CUSTOM_ELEMENT(element))
+ {
+ Error(ERR_WARN, "invalid custom element number %d", element);
+
+ element = EL_INTERNAL_DUMMY;
+ }
+
+ for (j = 0; j < MAX_ELEMENT_NAME_LEN; j++)
+ ei->description[j] = getFile8Bit(file);
+ ei->description[MAX_ELEMENT_NAME_LEN] = 0;
+
+ ei->properties[EP_BITFIELD_BASE_NR] = getFile32BitBE(file);
+
+ /* some free bytes for future properties and padding */
+ ReadUnusedBytesFromFile(file, 7);
+
+ ei->use_gfx_element = getFile8Bit(file);
+ ei->gfx_element_initial = getMappedElement(getFile16BitBE(file));
+
+ ei->collect_score_initial = getFile8Bit(file);
+ ei->collect_count_initial = getFile8Bit(file);
+
+ ei->push_delay_fixed = getFile16BitBE(file);
+ ei->push_delay_random = getFile16BitBE(file);
+ ei->move_delay_fixed = getFile16BitBE(file);
+ ei->move_delay_random = getFile16BitBE(file);
+
+ ei->move_pattern = getFile16BitBE(file);
+ ei->move_direction_initial = getFile8Bit(file);
+ ei->move_stepsize = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ ei->content.e[x][y] = getMappedElement(getFile16BitBE(file));
+
+ event_bits = getFile32BitBE(file);
+ for (j = 0; j < NUM_CHANGE_EVENTS; j++)
+ if (event_bits & (1 << j))
+ ei->change->has_event[j] = TRUE;
+
+ ei->change->target_element = getMappedElement(getFile16BitBE(file));
+
+ ei->change->delay_fixed = getFile16BitBE(file);
+ ei->change->delay_random = getFile16BitBE(file);
+ ei->change->delay_frames = getFile16BitBE(file);
+
+ ei->change->initial_trigger_element= getMappedElement(getFile16BitBE(file));
+
+ ei->change->explode = getFile8Bit(file);
+ ei->change->use_target_content = getFile8Bit(file);
+ ei->change->only_if_complete = getFile8Bit(file);
+ ei->change->use_random_replace = getFile8Bit(file);
+
+ ei->change->random_percentage = getFile8Bit(file);
+ ei->change->replace_when = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ ei->change->target_content.e[x][y] =
+ getMappedElement(getFile16BitBE(file));
+
+ ei->slippery_type = getFile8Bit(file);
+
+ /* some free bytes for future properties and padding */
+ ReadUnusedBytesFromFile(file, LEVEL_CPART_CUS3_UNUSED);
+
+ /* mark that this custom element has been modified */
+ ei->modified_settings = TRUE;
+ }
+
+ return chunk_size;
+}
+
+static int LoadLevel_CUS4(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ struct ElementInfo *ei;
+ int chunk_size_expected;
+ int element;
+ int i, j, x, y;
+
+ /* ---------- custom element base property values (96 bytes) ------------- */
+
+ element = getMappedElement(getFile16BitBE(file));
+
+ if (!IS_CUSTOM_ELEMENT(element))
+ {
+ Error(ERR_WARN, "invalid custom element number %d", element);
+
+ ReadUnusedBytesFromFile(file, chunk_size - 2);
+ return chunk_size;
+ }
+
+ ei = &element_info[element];
+
+ for (i = 0; i < MAX_ELEMENT_NAME_LEN; i++)
+ ei->description[i] = getFile8Bit(file);
+ ei->description[MAX_ELEMENT_NAME_LEN] = 0;
+
+ ei->properties[EP_BITFIELD_BASE_NR] = getFile32BitBE(file);
+
+ ReadUnusedBytesFromFile(file, 4); /* reserved for more base properties */
+
+ ei->num_change_pages = getFile8Bit(file);
+
+ chunk_size_expected = LEVEL_CHUNK_CUS4_SIZE(ei->num_change_pages);
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size - 43);
+ return chunk_size_expected;
+ }
+
+ ei->ce_value_fixed_initial = getFile16BitBE(file);
+ ei->ce_value_random_initial = getFile16BitBE(file);
+ ei->use_last_ce_value = getFile8Bit(file);
+
+ ei->use_gfx_element = getFile8Bit(file);
+ ei->gfx_element_initial = getMappedElement(getFile16BitBE(file));
+
+ ei->collect_score_initial = getFile8Bit(file);
+ ei->collect_count_initial = getFile8Bit(file);
+
+ ei->drop_delay_fixed = getFile8Bit(file);
+ ei->push_delay_fixed = getFile8Bit(file);
+ ei->drop_delay_random = getFile8Bit(file);
+ ei->push_delay_random = getFile8Bit(file);
+ ei->move_delay_fixed = getFile16BitBE(file);
+ ei->move_delay_random = getFile16BitBE(file);
+
+ /* bits 0 - 15 of "move_pattern" ... */
+ ei->move_pattern = getFile16BitBE(file);
+ ei->move_direction_initial = getFile8Bit(file);
+ ei->move_stepsize = getFile8Bit(file);
+
+ ei->slippery_type = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ ei->content.e[x][y] = getMappedElement(getFile16BitBE(file));
+
+ ei->move_enter_element = getMappedElement(getFile16BitBE(file));
+ ei->move_leave_element = getMappedElement(getFile16BitBE(file));
+ ei->move_leave_type = getFile8Bit(file);
+
+ /* ... bits 16 - 31 of "move_pattern" (not nice, but downward compatible) */
+ ei->move_pattern |= (getFile16BitBE(file) << 16);
+
+ ei->access_direction = getFile8Bit(file);
+
+ ei->explosion_delay = getFile8Bit(file);
+ ei->ignition_delay = getFile8Bit(file);
+ ei->explosion_type = getFile8Bit(file);
+
+ /* some free bytes for future custom property values and padding */
+ ReadUnusedBytesFromFile(file, 1);
+
+ /* ---------- change page property values (48 bytes) --------------------- */
+
+ setElementChangePages(ei, ei->num_change_pages);
+
+ for (i = 0; i < ei->num_change_pages; i++)
+ {
+ struct ElementChangeInfo *change = &ei->change_page[i];
+ unsigned int event_bits;
+
+ /* always start with reliable default values */
+ setElementChangeInfoToDefaults(change);
+
+ /* bits 0 - 31 of "has_event[]" ... */
+ event_bits = getFile32BitBE(file);
+ for (j = 0; j < MIN(NUM_CHANGE_EVENTS, 32); j++)
+ if (event_bits & (1 << j))
+ change->has_event[j] = TRUE;
+
+ change->target_element = getMappedElement(getFile16BitBE(file));
+
+ change->delay_fixed = getFile16BitBE(file);
+ change->delay_random = getFile16BitBE(file);
+ change->delay_frames = getFile16BitBE(file);
+
+ change->initial_trigger_element = getMappedElement(getFile16BitBE(file));
+
+ change->explode = getFile8Bit(file);
+ change->use_target_content = getFile8Bit(file);
+ change->only_if_complete = getFile8Bit(file);
+ change->use_random_replace = getFile8Bit(file);
+
+ change->random_percentage = getFile8Bit(file);
+ change->replace_when = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ change->target_content.e[x][y]= getMappedElement(getFile16BitBE(file));
+
+ change->can_change = getFile8Bit(file);
+
+ change->trigger_side = getFile8Bit(file);
+
+ change->trigger_player = getFile8Bit(file);
+ change->trigger_page = getFile8Bit(file);
+
+ change->trigger_page = (change->trigger_page == CH_PAGE_ANY_FILE ?
+ CH_PAGE_ANY : (1 << change->trigger_page));
+
+ change->has_action = getFile8Bit(file);
+ change->action_type = getFile8Bit(file);
+ change->action_mode = getFile8Bit(file);
+ change->action_arg = getFile16BitBE(file);
+
+ /* ... bits 32 - 39 of "has_event[]" (not nice, but downward compatible) */
+ event_bits = getFile8Bit(file);
+ for (j = 32; j < NUM_CHANGE_EVENTS; j++)
+ if (event_bits & (1 << (j - 32)))
+ change->has_event[j] = TRUE;
+ }
+
+ /* mark this custom element as modified */
+ ei->modified_settings = TRUE;
+
+ return chunk_size;
+}
+
+static int LoadLevel_GRP1(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ struct ElementInfo *ei;
+ struct ElementGroupInfo *group;
+ int element;
+ int i;
+
+ element = getMappedElement(getFile16BitBE(file));
+
+ if (!IS_GROUP_ELEMENT(element))
+ {
+ Error(ERR_WARN, "invalid group element number %d", element);
+
+ ReadUnusedBytesFromFile(file, chunk_size - 2);
+ return chunk_size;
+ }
+
+ ei = &element_info[element];
+
+ for (i = 0; i < MAX_ELEMENT_NAME_LEN; i++)
+ ei->description[i] = getFile8Bit(file);
+ ei->description[MAX_ELEMENT_NAME_LEN] = 0;
+
+ group = element_info[element].group;
+
+ group->num_elements = getFile8Bit(file);
+
+ ei->use_gfx_element = getFile8Bit(file);
+ ei->gfx_element_initial = getMappedElement(getFile16BitBE(file));
+
+ group->choice_mode = getFile8Bit(file);
+
+ /* some free bytes for future values and padding */
+ ReadUnusedBytesFromFile(file, 3);
+
+ for (i = 0; i < MAX_ELEMENTS_IN_GROUP; i++)
+ group->element[i] = getMappedElement(getFile16BitBE(file));
+
+ /* mark this group element as modified */
+ element_info[element].modified_settings = TRUE;
+
+ return chunk_size;
+}
+
+static int LoadLevel_MicroChunk(FILE *file, struct LevelFileConfigInfo *conf,
+ int element, int real_element)
+{
+ int micro_chunk_size = 0;
+ int conf_type = getFile8Bit(file);
+ int byte_mask = conf_type & CONF_MASK_BYTES;
+ boolean element_found = FALSE;
+ int i;
+
+ micro_chunk_size += 1;
+
+ if (byte_mask == CONF_MASK_MULTI_BYTES)
+ {
+ int num_bytes = getFile16BitBE(file);
+ byte *buffer = checked_malloc(num_bytes);
+
+ ReadBytesFromFile(file, buffer, num_bytes);
+
+ for (i = 0; conf[i].data_type != -1; i++)
+ {
+ if (conf[i].element == element &&
+ conf[i].conf_type == conf_type)
+ {
+ int data_type = conf[i].data_type;
+ int num_entities = num_bytes / CONF_ENTITY_NUM_BYTES(data_type);
+ int max_num_entities = conf[i].max_num_entities;
+
+ if (num_entities > max_num_entities)
+ {
+ Error(ERR_WARN,
+ "truncating number of entities for element %d from %d to %d",
+ element, num_entities, max_num_entities);
+
+ num_entities = max_num_entities;
+ }
+
+ if (num_entities == 0 && (data_type == TYPE_ELEMENT_LIST ||
+ data_type == TYPE_CONTENT_LIST))
+ {
+ /* for element and content lists, zero entities are not allowed */
+ Error(ERR_WARN, "found empty list of entities for element %d",
+ element);
+
+ /* do not set "num_entities" here to prevent reading behind buffer */
+
+ *(int *)(conf[i].num_entities) = 1; /* at least one is required */
+ }
+ else
+ {
+ *(int *)(conf[i].num_entities) = num_entities;
+ }
+
+ element_found = TRUE;
+
+ if (data_type == TYPE_STRING)
+ {
+ char *string = (char *)(conf[i].value);
+ int j;
+
+ for (j = 0; j < max_num_entities; j++)
+ string[j] = (j < num_entities ? buffer[j] : '\0');
+ }
+ else if (data_type == TYPE_ELEMENT_LIST)
+ {
+ int *element_array = (int *)(conf[i].value);
+ int j;
+
+ for (j = 0; j < num_entities; j++)
+ element_array[j] =
+ getMappedElement(CONF_ELEMENTS_ELEMENT(buffer, j));
+ }
+ else if (data_type == TYPE_CONTENT_LIST)
+ {
+ struct Content *content= (struct Content *)(conf[i].value);
+ int c, x, y;
+
+ for (c = 0; c < num_entities; c++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ content[c].e[x][y] =
+ getMappedElement(CONF_CONTENTS_ELEMENT(buffer, c, x, y));
+ }
+ else
+ element_found = FALSE;
+
+ break;
+ }
+ }
+
+ checked_free(buffer);
+
+ micro_chunk_size += 2 + num_bytes;
+ }
+ else /* constant size configuration data (1, 2 or 4 bytes) */
+ {
+ int value = (byte_mask == CONF_MASK_1_BYTE ? getFile8Bit (file) :
+ byte_mask == CONF_MASK_2_BYTE ? getFile16BitBE(file) :
+ byte_mask == CONF_MASK_4_BYTE ? getFile32BitBE(file) : 0);
+
+ for (i = 0; conf[i].data_type != -1; i++)
+ {
+ if (conf[i].element == element &&
+ conf[i].conf_type == conf_type)
+ {
+ int data_type = conf[i].data_type;
+
+ if (data_type == TYPE_ELEMENT)
+ value = getMappedElement(value);
+
+ if (data_type == TYPE_BOOLEAN)
+ *(boolean *)(conf[i].value) = value;
+ else
+ *(int *) (conf[i].value) = value;
+
+ element_found = TRUE;
+
+ break;
+ }
+ }
+
+ micro_chunk_size += CONF_VALUE_NUM_BYTES(byte_mask);
+ }
+
+ if (!element_found)
+ {
+ char *error_conf_chunk_bytes =
+ (byte_mask == CONF_MASK_1_BYTE ? "CONF_VALUE_8_BIT" :
+ byte_mask == CONF_MASK_2_BYTE ? "CONF_VALUE_16_BIT" :
+ byte_mask == CONF_MASK_4_BYTE ? "CONF_VALUE_32_BIT" :"CONF_VALUE_BYTES");
+ int error_conf_chunk_token = conf_type & CONF_MASK_TOKEN;
+ int error_element = real_element;
+
+ Error(ERR_WARN, "cannot load micro chunk '%s(%d)' value for element %d ['%s']",
+ error_conf_chunk_bytes, error_conf_chunk_token,
+ error_element, EL_NAME(error_element));
+ }
+
+ return micro_chunk_size;
+}
+
+static int LoadLevel_INFO(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int real_chunk_size = 0;
+
+ li = *level; /* copy level data into temporary buffer */
+
+ while (!feof(file))
+ {
+ real_chunk_size += LoadLevel_MicroChunk(file, chunk_config_INFO, -1, -1);
+
+ if (real_chunk_size >= chunk_size)
+ break;
+ }
+
+ *level = li; /* copy temporary buffer back to level data */
+
+ return real_chunk_size;
+}
+
+static int LoadLevel_CONF(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int real_chunk_size = 0;
+
+ li = *level; /* copy level data into temporary buffer */
+
+ while (!feof(file))
+ {
+ int element = getMappedElement(getFile16BitBE(file));
+
+ real_chunk_size += 2;
+ real_chunk_size += LoadLevel_MicroChunk(file, chunk_config_CONF,
+ element, element);
+ if (real_chunk_size >= chunk_size)
+ break;
+ }
+
+ *level = li; /* copy temporary buffer back to level data */
+
+ return real_chunk_size;
+}
+
+static int LoadLevel_ELEM(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int real_chunk_size = 0;
+
+ li = *level; /* copy level data into temporary buffer */
+
+ while (!feof(file))
+ {
+ int element = getMappedElement(getFile16BitBE(file));
+
+ real_chunk_size += 2;
+ real_chunk_size += LoadLevel_MicroChunk(file, chunk_config_ELEM,
+ element, element);
+ if (real_chunk_size >= chunk_size)
+ break;
+ }
+
+ *level = li; /* copy temporary buffer back to level data */
+
+ return real_chunk_size;
+}
+
+static int LoadLevel_NOTE(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int element = getMappedElement(getFile16BitBE(file));
+ int envelope_nr = element - EL_ENVELOPE_1;
+ int real_chunk_size = 2;
+
+ while (!feof(file))
+ {
+ real_chunk_size += LoadLevel_MicroChunk(file, chunk_config_NOTE,
+ -1, element);
+
+ if (real_chunk_size >= chunk_size)
+ break;
+ }
+
+ level->envelope[envelope_nr] = xx_envelope;
+
+ return real_chunk_size;
+}
+
+static int LoadLevel_CUSX(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int element = getMappedElement(getFile16BitBE(file));
+ int real_chunk_size = 2;
+ struct ElementInfo *ei = &element_info[element];
+ int i;
+
+ xx_ei = *ei; /* copy element data into temporary buffer */
+
+ xx_ei.num_change_pages = -1;
+
+ while (!feof(file))
+ {
+ real_chunk_size += LoadLevel_MicroChunk(file, chunk_config_CUSX_base,
+ -1, element);
+ if (xx_ei.num_change_pages != -1)
+ break;
+
+ if (real_chunk_size >= chunk_size)
+ break;
+ }
+
+ *ei = xx_ei;
+
+ if (ei->num_change_pages == -1)
+ {
+ Error(ERR_WARN, "LoadLevel_CUSX(): missing 'num_change_pages' for '%s'",
+ EL_NAME(element));
+
+ ei->num_change_pages = 1;
+
+ setElementChangePages(ei, 1);
+ setElementChangeInfoToDefaults(ei->change);
+
+ return real_chunk_size;
+ }
+
+ /* initialize number of change pages stored for this custom element */
+ setElementChangePages(ei, ei->num_change_pages);
+ for (i = 0; i < ei->num_change_pages; i++)
+ setElementChangeInfoToDefaults(&ei->change_page[i]);
+
+ /* start with reading properties for the first change page */
+ xx_current_change_page = 0;
+
+ while (!feof(file))
+ {
+ struct ElementChangeInfo *change = &ei->change_page[xx_current_change_page];
+
+ xx_change = *change; /* copy change data into temporary buffer */
+
+ resetEventBits(); /* reset bits; change page might have changed */
+
+ real_chunk_size += LoadLevel_MicroChunk(file, chunk_config_CUSX_change,
+ -1, element);
+
+ *change = xx_change;
+
+ setEventFlagsFromEventBits(change);
+
+ if (real_chunk_size >= chunk_size)
+ break;
+ }
+
+ return real_chunk_size;
+}
+
+static int LoadLevel_GRPX(FILE *file, int chunk_size, struct LevelInfo *level)
+{
+ int element = getMappedElement(getFile16BitBE(file));
+ int real_chunk_size = 2;
+ struct ElementInfo *ei = &element_info[element];
+ struct ElementGroupInfo *group = ei->group;
+
+ xx_ei = *ei; /* copy element data into temporary buffer */
+ xx_group = *group; /* copy group data into temporary buffer */
+
+ while (!feof(file))
+ {
+ real_chunk_size += LoadLevel_MicroChunk(file, chunk_config_GRPX,
+ -1, element);
+
+ if (real_chunk_size >= chunk_size)
+ break;
+ }
+
+ *ei = xx_ei;
+ *group = xx_group;
+
+ return real_chunk_size;
+}
+
+#endif
+
+#if 1
+
+static void LoadLevelFromFileInfo_RND(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ char *filename = level_file_info->filename;
+ char cookie[MAX_LINE_LEN];
+ char chunk_name[CHUNK_ID_LEN + 1];
+ int chunk_size;
+ File *file;
+
+ if (!(file = openFile(filename, MODE_READ)))
+ {
+ level->no_valid_file = TRUE;
+
+#if 1
+ if (!level_info_only)
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+#else
+ if (level != &level_template)
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+#endif
+
+ return;
+ }
+
+ getFileChunkBE(file, chunk_name, NULL);
+ if (strEqual(chunk_name, "RND1"))
+ {
+ getFile32BitBE(file); /* not used */
+
+ getFileChunkBE(file, chunk_name, NULL);
+ if (!strEqual(chunk_name, "CAVE"))
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unknown format of level file '%s'", filename);
+
+ closeFile(file);
+
+ return;
+ }
+ }
+ else /* check for pre-2.0 file format with cookie string */
+ {
+ strcpy(cookie, chunk_name);
+ if (getStringFromFile(file, &cookie[4], MAX_LINE_LEN - 4) == NULL)
+ cookie[4] = '\0';
+ if (strlen(cookie) > 0 && cookie[strlen(cookie) - 1] == '\n')
+ cookie[strlen(cookie) - 1] = '\0';
+
+ if (!checkCookieString(cookie, LEVEL_COOKIE_TMPL))
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unknown format of level file '%s'", filename);
+
+ closeFile(file);
+
+ return;
+ }
+
+ if ((level->file_version = getFileVersionFromCookieString(cookie)) == -1)
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unsupported version of level file '%s'", filename);
+
+ closeFile(file);
+
+ return;
+ }
+
+ /* pre-2.0 level files have no game version, so use file version here */
+ level->game_version = level->file_version;
+ }
+
+ if (level->file_version < FILE_VERSION_1_2)
+ {
+ /* level files from versions before 1.2.0 without chunk structure */
+ LoadLevel_HEAD(file, LEVEL_CHUNK_HEAD_SIZE, level);
+ LoadLevel_BODY(file, level->fieldx * level->fieldy, level);
+ }
+ else
+ {
+ static struct
+ {
+ char *name;
+ int size;
+ int (*loader)(File *, int, struct LevelInfo *);
+ }
+ chunk_info[] =
+ {
+ { "VERS", LEVEL_CHUNK_VERS_SIZE, LoadLevel_VERS },
+ { "DATE", LEVEL_CHUNK_DATE_SIZE, LoadLevel_DATE },
+ { "HEAD", LEVEL_CHUNK_HEAD_SIZE, LoadLevel_HEAD },
+ { "NAME", LEVEL_CHUNK_NAME_SIZE, LoadLevel_NAME },
+ { "AUTH", LEVEL_CHUNK_AUTH_SIZE, LoadLevel_AUTH },
+ { "INFO", -1, LoadLevel_INFO },
+ { "BODY", -1, LoadLevel_BODY },
+ { "CONT", -1, LoadLevel_CONT },
+ { "CNT2", LEVEL_CHUNK_CNT2_SIZE, LoadLevel_CNT2 },
+ { "CNT3", -1, LoadLevel_CNT3 },
+ { "CUS1", -1, LoadLevel_CUS1 },
+ { "CUS2", -1, LoadLevel_CUS2 },
+ { "CUS3", -1, LoadLevel_CUS3 },
+ { "CUS4", -1, LoadLevel_CUS4 },
+ { "GRP1", -1, LoadLevel_GRP1 },
+ { "CONF", -1, LoadLevel_CONF },
+ { "ELEM", -1, LoadLevel_ELEM },
+ { "NOTE", -1, LoadLevel_NOTE },
+ { "CUSX", -1, LoadLevel_CUSX },
+ { "GRPX", -1, LoadLevel_GRPX },
+
+ { NULL, 0, NULL }
+ };
+
+ while (getFileChunkBE(file, chunk_name, &chunk_size))
+ {
+ int i = 0;
+
+ while (chunk_info[i].name != NULL &&
+ !strEqual(chunk_name, chunk_info[i].name))
+ i++;
+
+ if (chunk_info[i].name == NULL)
+ {
+ Error(ERR_WARN, "unknown chunk '%s' in level file '%s'",
+ chunk_name, filename);
+ ReadUnusedBytesFromFile(file, chunk_size);
+ }
+ else if (chunk_info[i].size != -1 &&
+ chunk_info[i].size != chunk_size)
+ {
+ Error(ERR_WARN, "wrong size (%d) of chunk '%s' in level file '%s'",
+ chunk_size, chunk_name, filename);
+ ReadUnusedBytesFromFile(file, chunk_size);
+ }
+ else
+ {
+ /* call function to load this level chunk */
+ int chunk_size_expected =
+ (chunk_info[i].loader)(file, chunk_size, level);
+
+ /* the size of some chunks cannot be checked before reading other
+ chunks first (like "HEAD" and "BODY") that contain some header
+ information, so check them here */
+ if (chunk_size_expected != chunk_size)
+ {
+ Error(ERR_WARN, "wrong size (%d) of chunk '%s' in level file '%s'",
+ chunk_size, chunk_name, filename);
+ }
+ }
+ }
+ }
+
+ closeFile(file);
+}
+
+#else
+
+static void LoadLevelFromFileInfo_RND(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ char *filename = level_file_info->filename;
+ char cookie[MAX_LINE_LEN];
+ char chunk_name[CHUNK_ID_LEN + 1];
+ int chunk_size;
+ FILE *file;
+
+ if (!(file = fopen(filename, MODE_READ)))
+ {
+ level->no_valid_file = TRUE;
+
+#if 1
+ if (!level_info_only)
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+#else
+ if (level != &level_template)
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+#endif
+
+ return;
+ }
+
+ getFileChunkBE(file, chunk_name, NULL);
+ if (strEqual(chunk_name, "RND1"))
+ {
+ getFile32BitBE(file); /* not used */
+
+ getFileChunkBE(file, chunk_name, NULL);
+ if (!strEqual(chunk_name, "CAVE"))
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unknown format of level file '%s'", filename);
+ fclose(file);
+ return;
+ }
+ }
+ else /* check for pre-2.0 file format with cookie string */
+ {
+ strcpy(cookie, chunk_name);
+ if (fgets(&cookie[4], MAX_LINE_LEN - 4, file) == NULL)
+ cookie[4] = '\0';
+ if (strlen(cookie) > 0 && cookie[strlen(cookie) - 1] == '\n')
+ cookie[strlen(cookie) - 1] = '\0';
+
+ if (!checkCookieString(cookie, LEVEL_COOKIE_TMPL))
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unknown format of level file '%s'", filename);
+ fclose(file);
+ return;
+ }
+
+ if ((level->file_version = getFileVersionFromCookieString(cookie)) == -1)
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unsupported version of level file '%s'", filename);
+ fclose(file);
+ return;
+ }
+
+ /* pre-2.0 level files have no game version, so use file version here */
+ level->game_version = level->file_version;
+ }
+
+ if (level->file_version < FILE_VERSION_1_2)
+ {
+ /* level files from versions before 1.2.0 without chunk structure */
+ LoadLevel_HEAD(file, LEVEL_CHUNK_HEAD_SIZE, level);
+ LoadLevel_BODY(file, level->fieldx * level->fieldy, level);
+ }
+ else
+ {
+ static struct
+ {
+ char *name;
+ int size;
+ int (*loader)(FILE *, int, struct LevelInfo *);
+ }
+ chunk_info[] =
+ {
+ { "VERS", LEVEL_CHUNK_VERS_SIZE, LoadLevel_VERS },
+ { "DATE", LEVEL_CHUNK_DATE_SIZE, LoadLevel_DATE },
+ { "HEAD", LEVEL_CHUNK_HEAD_SIZE, LoadLevel_HEAD },
+ { "NAME", LEVEL_CHUNK_NAME_SIZE, LoadLevel_NAME },
+ { "AUTH", LEVEL_CHUNK_AUTH_SIZE, LoadLevel_AUTH },
+ { "INFO", -1, LoadLevel_INFO },
+ { "BODY", -1, LoadLevel_BODY },
+ { "CONT", -1, LoadLevel_CONT },
+ { "CNT2", LEVEL_CHUNK_CNT2_SIZE, LoadLevel_CNT2 },
+ { "CNT3", -1, LoadLevel_CNT3 },
+ { "CUS1", -1, LoadLevel_CUS1 },
+ { "CUS2", -1, LoadLevel_CUS2 },
+ { "CUS3", -1, LoadLevel_CUS3 },
+ { "CUS4", -1, LoadLevel_CUS4 },
+ { "GRP1", -1, LoadLevel_GRP1 },
+ { "CONF", -1, LoadLevel_CONF },
+ { "ELEM", -1, LoadLevel_ELEM },
+ { "NOTE", -1, LoadLevel_NOTE },
+ { "CUSX", -1, LoadLevel_CUSX },
+ { "GRPX", -1, LoadLevel_GRPX },
+
+ { NULL, 0, NULL }
+ };
+
+ while (getFileChunkBE(file, chunk_name, &chunk_size))
+ {
+ int i = 0;
+
+ while (chunk_info[i].name != NULL &&
+ !strEqual(chunk_name, chunk_info[i].name))
+ i++;
+
+ if (chunk_info[i].name == NULL)
+ {
+ Error(ERR_WARN, "unknown chunk '%s' in level file '%s'",
+ chunk_name, filename);
+ ReadUnusedBytesFromFile(file, chunk_size);
+ }
+ else if (chunk_info[i].size != -1 &&
+ chunk_info[i].size != chunk_size)
+ {
+ Error(ERR_WARN, "wrong size (%d) of chunk '%s' in level file '%s'",
+ chunk_size, chunk_name, filename);
+ ReadUnusedBytesFromFile(file, chunk_size);
+ }
+ else
+ {
+ /* call function to load this level chunk */
+ int chunk_size_expected =
+ (chunk_info[i].loader)(file, chunk_size, level);
+
+ /* the size of some chunks cannot be checked before reading other
+ chunks first (like "HEAD" and "BODY") that contain some header
+ information, so check them here */
+ if (chunk_size_expected != chunk_size)
+ {
+ Error(ERR_WARN, "wrong size (%d) of chunk '%s' in level file '%s'",
+ chunk_size, chunk_name, filename);
+ }
+ }
+ }
+ }
+
+ fclose(file);
+}
+
+#endif
+
+
+/* ------------------------------------------------------------------------- */
+/* functions for loading EM level */
+/* ------------------------------------------------------------------------- */
+
+#if 0
+
+static int map_em_element_yam(int element)
+{
+ switch (element)
+ {
+ case 0x00: return EL_EMPTY;
+ case 0x01: return EL_EMERALD;
+ case 0x02: return EL_DIAMOND;
+ case 0x03: return EL_ROCK;
+ case 0x04: return EL_ROBOT;
+ case 0x05: return EL_SPACESHIP_UP;
+ case 0x06: return EL_BOMB;
+ case 0x07: return EL_BUG_UP;
+ case 0x08: return EL_AMOEBA_DROP;
+ case 0x09: return EL_NUT;
+ case 0x0a: return EL_YAMYAM;
+ case 0x0b: return EL_QUICKSAND_FULL;
+ case 0x0c: return EL_SAND;
+ case 0x0d: return EL_WALL_SLIPPERY;
+ case 0x0e: return EL_STEELWALL;
+ case 0x0f: return EL_WALL;
+ case 0x10: return EL_EM_KEY_1;
+ case 0x11: return EL_EM_KEY_2;
+ case 0x12: return EL_EM_KEY_4;
+ case 0x13: return EL_EM_KEY_3;
+ case 0x14: return EL_MAGIC_WALL;
+ case 0x15: return EL_ROBOT_WHEEL;
+ case 0x16: return EL_DYNAMITE;
+
+ case 0x17: return EL_EM_KEY_1; /* EMC */
+ case 0x18: return EL_BUG_UP; /* EMC */
+ case 0x1a: return EL_DIAMOND; /* EMC */
+ case 0x1b: return EL_EMERALD; /* EMC */
+ case 0x25: return EL_NUT; /* EMC */
+ case 0x80: return EL_EMPTY; /* EMC */
+ case 0x85: return EL_EM_KEY_1; /* EMC */
+ case 0x86: return EL_EM_KEY_2; /* EMC */
+ case 0x87: return EL_EM_KEY_4; /* EMC */
+ case 0x88: return EL_EM_KEY_3; /* EMC */
+ case 0x94: return EL_QUICKSAND_EMPTY; /* EMC */
+ case 0x9a: return EL_AMOEBA_WET; /* EMC */
+ case 0xaf: return EL_DYNAMITE; /* EMC */
+ case 0xbd: return EL_SAND; /* EMC */
+
+ default:
+ Error(ERR_WARN, "invalid level element %d", element);
+ return EL_UNKNOWN;
+ }
+}
+
+static int map_em_element_field(int element)
+{
+ if (element >= 0xc8 && element <= 0xe1)
+ return EL_CHAR_A + (element - 0xc8);
+ else if (element >= 0xe2 && element <= 0xeb)
+ return EL_CHAR_0 + (element - 0xe2);
+
+ switch (element)
+ {
+ case 0x00: return EL_ROCK;
+ case 0x01: return EL_ROCK; /* EMC */
+ case 0x02: return EL_DIAMOND;
+ case 0x03: return EL_DIAMOND;
+ case 0x04: return EL_ROBOT;
+ case 0x05: return EL_ROBOT; /* EMC */
+ case 0x06: return EL_EMPTY_SPACE; /* EMC */
+ case 0x07: return EL_EMPTY_SPACE; /* EMC */
+ case 0x08: return EL_SPACESHIP_UP;
+ case 0x09: return EL_SPACESHIP_RIGHT;
+ case 0x0a: return EL_SPACESHIP_DOWN;
+ case 0x0b: return EL_SPACESHIP_LEFT;
+ case 0x0c: return EL_SPACESHIP_UP;
+ case 0x0d: return EL_SPACESHIP_RIGHT;
+ case 0x0e: return EL_SPACESHIP_DOWN;
+ case 0x0f: return EL_SPACESHIP_LEFT;
+
+ case 0x10: return EL_BOMB;
+ case 0x11: return EL_BOMB; /* EMC */
+ case 0x12: return EL_EMERALD;
+ case 0x13: return EL_EMERALD;
+ case 0x14: return EL_BUG_UP;
+ case 0x15: return EL_BUG_RIGHT;
+ case 0x16: return EL_BUG_DOWN;
+ case 0x17: return EL_BUG_LEFT;
+ case 0x18: return EL_BUG_UP;
+ case 0x19: return EL_BUG_RIGHT;
+ case 0x1a: return EL_BUG_DOWN;
+ case 0x1b: return EL_BUG_LEFT;
+ case 0x1c: return EL_AMOEBA_DROP;
+ case 0x1d: return EL_AMOEBA_DROP; /* EMC */
+ case 0x1e: return EL_AMOEBA_DROP; /* EMC */
+ case 0x1f: return EL_AMOEBA_DROP; /* EMC */
+
+ case 0x20: return EL_ROCK;
+ case 0x21: return EL_BOMB; /* EMC */
+ case 0x22: return EL_DIAMOND; /* EMC */
+ case 0x23: return EL_EMERALD; /* EMC */
+ case 0x24: return EL_MAGIC_WALL;
+ case 0x25: return EL_NUT;
+ case 0x26: return EL_NUT; /* EMC */
+ case 0x27: return EL_NUT; /* EMC */
+
+ /* looks like magic wheel, but is _always_ activated */
+ case 0x28: return EL_ROBOT_WHEEL; /* EMC */
+
+ case 0x29: return EL_YAMYAM; /* up */
+ case 0x2a: return EL_YAMYAM; /* down */
+ case 0x2b: return EL_YAMYAM; /* left */ /* EMC */
+ case 0x2c: return EL_YAMYAM; /* right */ /* EMC */
+ case 0x2d: return EL_QUICKSAND_FULL;
+ case 0x2e: return EL_EMPTY_SPACE; /* EMC */
+ case 0x2f: return EL_EMPTY_SPACE; /* EMC */
+
+ case 0x30: return EL_EMPTY_SPACE; /* EMC */
+ case 0x31: return EL_SAND; /* EMC */
+ case 0x32: return EL_SAND; /* EMC */
+ case 0x33: return EL_SAND; /* EMC */
+ case 0x34: return EL_QUICKSAND_FULL; /* EMC */
+ case 0x35: return EL_QUICKSAND_FULL; /* EMC */
+ case 0x36: return EL_QUICKSAND_FULL; /* EMC */
+ case 0x37: return EL_SAND; /* EMC */
+ case 0x38: return EL_ROCK; /* EMC */
+ case 0x39: return EL_EXPANDABLE_WALL_HORIZONTAL; /* EMC */
+ case 0x3a: return EL_EXPANDABLE_WALL_VERTICAL; /* EMC */
+ case 0x3b: return EL_DYNAMITE_ACTIVE; /* 1 */
+ case 0x3c: return EL_DYNAMITE_ACTIVE; /* 2 */
+ case 0x3d: return EL_DYNAMITE_ACTIVE; /* 3 */
+ case 0x3e: return EL_DYNAMITE_ACTIVE; /* 4 */
+ case 0x3f: return EL_ACID_POOL_BOTTOM;
+
+ case 0x40: return EL_EXIT_OPEN; /* 1 */
+ case 0x41: return EL_EXIT_OPEN; /* 2 */
+ case 0x42: return EL_EXIT_OPEN; /* 3 */
+ case 0x43: return EL_BALLOON; /* EMC */
+ case 0x44: return EL_UNKNOWN; /* EMC ("plant") */
+ case 0x45: return EL_SPRING; /* EMC */
+ case 0x46: return EL_SPRING; /* falling */ /* EMC */
+ case 0x47: return EL_SPRING; /* left */ /* EMC */
+ case 0x48: return EL_SPRING; /* right */ /* EMC */
+ case 0x49: return EL_UNKNOWN; /* EMC ("ball 1") */
+ case 0x4a: return EL_UNKNOWN; /* EMC ("ball 2") */
+ case 0x4b: return EL_UNKNOWN; /* EMC ("android") */
+ case 0x4c: return EL_EMPTY_SPACE; /* EMC */
+ case 0x4d: return EL_UNKNOWN; /* EMC ("android") */
+ case 0x4e: return EL_INVISIBLE_WALL; /* EMC (? "android") */
+ case 0x4f: return EL_UNKNOWN; /* EMC ("android") */
+
+ case 0x50: return EL_UNKNOWN; /* EMC ("android") */
+ case 0x51: return EL_UNKNOWN; /* EMC ("android") */
+ case 0x52: return EL_UNKNOWN; /* EMC ("android") */
+ case 0x53: return EL_UNKNOWN; /* EMC ("android") */
+ case 0x54: return EL_UNKNOWN; /* EMC ("android") */
+ case 0x55: return EL_EMPTY_SPACE; /* EMC */
+ case 0x56: return EL_EMPTY_SPACE; /* EMC */
+ case 0x57: return EL_EMPTY_SPACE; /* EMC */
+ case 0x58: return EL_EMPTY_SPACE; /* EMC */
+ case 0x59: return EL_EMPTY_SPACE; /* EMC */
+ case 0x5a: return EL_EMPTY_SPACE; /* EMC */
+ case 0x5b: return EL_EMPTY_SPACE; /* EMC */
+ case 0x5c: return EL_EMPTY_SPACE; /* EMC */
+ case 0x5d: return EL_EMPTY_SPACE; /* EMC */
+ case 0x5e: return EL_EMPTY_SPACE; /* EMC */
+ case 0x5f: return EL_EMPTY_SPACE; /* EMC */
+
+ case 0x60: return EL_EMPTY_SPACE; /* EMC */
+ case 0x61: return EL_EMPTY_SPACE; /* EMC */
+ case 0x62: return EL_EMPTY_SPACE; /* EMC */
+ case 0x63: return EL_SPRING; /* left */ /* EMC */
+ case 0x64: return EL_SPRING; /* right */ /* EMC */
+ case 0x65: return EL_ACID; /* 1 */ /* EMC */
+ case 0x66: return EL_ACID; /* 2 */ /* EMC */
+ case 0x67: return EL_ACID; /* 3 */ /* EMC */
+ case 0x68: return EL_ACID; /* 4 */ /* EMC */
+ case 0x69: return EL_ACID; /* 5 */ /* EMC */
+ case 0x6a: return EL_ACID; /* 6 */ /* EMC */
+ case 0x6b: return EL_ACID; /* 7 */ /* EMC */
+ case 0x6c: return EL_ACID; /* 8 */ /* EMC */
+ case 0x6d: return EL_EMPTY_SPACE; /* EMC */
+ case 0x6e: return EL_EMPTY_SPACE; /* EMC */
+ case 0x6f: return EL_EMPTY_SPACE; /* EMC */
+
+ case 0x70: return EL_EMPTY_SPACE; /* EMC */
+ case 0x71: return EL_EMPTY_SPACE; /* EMC */
+ case 0x72: return EL_NUT; /* left */ /* EMC */
+ case 0x73: return EL_SAND; /* EMC (? "nut") */
+ case 0x74: return EL_STEELWALL;
+ case 0x75: return EL_EMPTY_SPACE; /* EMC */
+ case 0x76: return EL_EMPTY_SPACE; /* EMC */
+ case 0x77: return EL_BOMB; /* left */ /* EMC */
+ case 0x78: return EL_BOMB; /* right */ /* EMC */
+ case 0x79: return EL_ROCK; /* left */ /* EMC */
+ case 0x7a: return EL_ROCK; /* right */ /* EMC */
+ case 0x7b: return EL_ACID; /* (? EMC "blank") */
+ case 0x7c: return EL_EMPTY_SPACE; /* EMC */
+ case 0x7d: return EL_EMPTY_SPACE; /* EMC */
+ case 0x7e: return EL_EMPTY_SPACE; /* EMC */
+ case 0x7f: return EL_EMPTY_SPACE; /* EMC */
+
+ case 0x80: return EL_EMPTY;
+ case 0x81: return EL_WALL_SLIPPERY;
+ case 0x82: return EL_SAND;
+ case 0x83: return EL_STEELWALL;
+ case 0x84: return EL_WALL;
+ case 0x85: return EL_EM_KEY_1;
+ case 0x86: return EL_EM_KEY_2;
+ case 0x87: return EL_EM_KEY_4;
+ case 0x88: return EL_EM_KEY_3;
+ case 0x89: return EL_EM_GATE_1;
+ case 0x8a: return EL_EM_GATE_2;
+ case 0x8b: return EL_EM_GATE_4;
+ case 0x8c: return EL_EM_GATE_3;
+ case 0x8d: return EL_INVISIBLE_WALL; /* EMC (? "dripper") */
+ case 0x8e: return EL_EM_GATE_1_GRAY;
+ case 0x8f: return EL_EM_GATE_2_GRAY;
+
+ case 0x90: return EL_EM_GATE_4_GRAY;
+ case 0x91: return EL_EM_GATE_3_GRAY;
+ case 0x92: return EL_MAGIC_WALL;
+ case 0x93: return EL_ROBOT_WHEEL;
+ case 0x94: return EL_QUICKSAND_EMPTY; /* (? EMC "sand") */
+ case 0x95: return EL_ACID_POOL_TOPLEFT;
+ case 0x96: return EL_ACID_POOL_TOPRIGHT;
+ case 0x97: return EL_ACID_POOL_BOTTOMLEFT;
+ case 0x98: return EL_ACID_POOL_BOTTOMRIGHT;
+ case 0x99: return EL_ACID; /* (? EMC "fake blank") */
+ case 0x9a: return EL_AMOEBA_DEAD; /* 1 */
+ case 0x9b: return EL_AMOEBA_DEAD; /* 2 */
+ case 0x9c: return EL_AMOEBA_DEAD; /* 3 */
+ case 0x9d: return EL_AMOEBA_DEAD; /* 4 */
+ case 0x9e: return EL_EXIT_CLOSED;
+ case 0x9f: return EL_CHAR_LESS; /* arrow left */
+
+ /* looks like normal sand, but behaves like wall */
+ case 0xa0: return EL_UNKNOWN; /* EMC ("fake grass") */
+ case 0xa1: return EL_UNKNOWN; /* EMC ("lenses") */
+ case 0xa2: return EL_UNKNOWN; /* EMC ("magnify") */
+ case 0xa3: return EL_UNKNOWN; /* EMC ("fake blank") */
+ case 0xa4: return EL_UNKNOWN; /* EMC ("fake grass") */
+ case 0xa5: return EL_UNKNOWN; /* EMC ("switch") */
+ case 0xa6: return EL_UNKNOWN; /* EMC ("switch") */
+ case 0xa7: return EL_EMPTY_SPACE; /* EMC */
+ case 0xa8: return EL_EMC_WALL_1; /* EMC ("decor 8") */
+ case 0xa9: return EL_EMC_WALL_2; /* EMC ("decor 9") */
+ case 0xaa: return EL_EMC_WALL_3; /* EMC ("decor 10") */
+ case 0xab: return EL_EMC_WALL_7; /* EMC ("decor 5") */
+ case 0xac: return EL_CHAR_COMMA; /* EMC */
+ case 0xad: return EL_CHAR_QUOTEDBL; /* EMC */
+ case 0xae: return EL_CHAR_MINUS; /* EMC */
+ case 0xaf: return EL_DYNAMITE;
+
+ case 0xb0: return EL_EMC_STEELWALL_1; /* EMC ("steel 3") */
+ case 0xb1: return EL_EMC_WALL_8; /* EMC ("decor 6") */
+ case 0xb2: return EL_UNKNOWN; /* EMC ("decor 7") */
+ case 0xb3: return EL_STEELWALL; /* 2 */ /* EMC */
+ case 0xb4: return EL_WALL_SLIPPERY; /* 2 */ /* EMC */
+ case 0xb5: return EL_EMC_WALL_6; /* EMC ("decor 2") */
+ case 0xb6: return EL_EMC_WALL_5; /* EMC ("decor 4") */
+ case 0xb7: return EL_EMC_WALL_4; /* EMC ("decor 3") */
+ case 0xb8: return EL_BALLOON_SWITCH_ANY; /* EMC */
+ case 0xb9: return EL_BALLOON_SWITCH_RIGHT; /* EMC */
+ case 0xba: return EL_BALLOON_SWITCH_DOWN; /* EMC */
+ case 0xbb: return EL_BALLOON_SWITCH_LEFT; /* EMC */
+ case 0xbc: return EL_BALLOON_SWITCH_UP; /* EMC */
+ case 0xbd: return EL_SAND; /* EMC ("dirt") */
+ case 0xbe: return EL_UNKNOWN; /* EMC ("plant") */
+ case 0xbf: return EL_UNKNOWN; /* EMC ("key 5") */
+
+ case 0xc0: return EL_UNKNOWN; /* EMC ("key 6") */
+ case 0xc1: return EL_UNKNOWN; /* EMC ("key 7") */
+ case 0xc2: return EL_UNKNOWN; /* EMC ("key 8") */
+ case 0xc3: return EL_UNKNOWN; /* EMC ("door 5") */
+ case 0xc4: return EL_UNKNOWN; /* EMC ("door 6") */
+ case 0xc5: return EL_UNKNOWN; /* EMC ("door 7") */
+ case 0xc6: return EL_UNKNOWN; /* EMC ("door 8") */
+ case 0xc7: return EL_UNKNOWN; /* EMC ("bumper") */
+
+ /* characters: see above */
+
+ case 0xec: return EL_CHAR_PERIOD;
+ case 0xed: return EL_CHAR_EXCLAM;
+ case 0xee: return EL_CHAR_COLON;
+ case 0xef: return EL_CHAR_QUESTION;
+
+ case 0xf0: return EL_CHAR_GREATER; /* arrow right */
+ case 0xf1: return EL_CHAR_COPYRIGHT; /* EMC: "decor 1" */
+ case 0xf2: return EL_UNKNOWN; /* EMC ("fake door 5") */
+ case 0xf3: return EL_UNKNOWN; /* EMC ("fake door 6") */
+ case 0xf4: return EL_UNKNOWN; /* EMC ("fake door 7") */
+ case 0xf5: return EL_UNKNOWN; /* EMC ("fake door 8") */
+ case 0xf6: return EL_EMPTY_SPACE; /* EMC */
+ case 0xf7: return EL_EMPTY_SPACE; /* EMC */
+
+ case 0xf8: return EL_EMPTY_SPACE; /* EMC */
+ case 0xf9: return EL_EMPTY_SPACE; /* EMC */
+ case 0xfa: return EL_EMPTY_SPACE; /* EMC */
+ case 0xfb: return EL_EMPTY_SPACE; /* EMC */
+ case 0xfc: return EL_EMPTY_SPACE; /* EMC */
+ case 0xfd: return EL_EMPTY_SPACE; /* EMC */
+
+ case 0xfe: return EL_PLAYER_1; /* EMC: "blank" */
+ case 0xff: return EL_PLAYER_2; /* EMC: "blank" */
+
+ default:
+ /* should never happen (all 8-bit value cases should be handled) */
+ Error(ERR_WARN, "invalid level element %d", element);
+ return EL_UNKNOWN;
+ }
+}
+
+#define EM_LEVEL_SIZE 2106
+#define EM_LEVEL_XSIZE 64
+#define EM_LEVEL_YSIZE 32
+
+static void OLD_LoadLevelFromFileInfo_EM(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info)
+{
+ char *filename = level_file_info->filename;
+ FILE *file;
+ unsigned char leveldata[EM_LEVEL_SIZE];
+ unsigned char *header = &leveldata[EM_LEVEL_XSIZE * EM_LEVEL_YSIZE];
+ int nr = level_file_info->nr;
+ int i, x, y;
+
+ if (!(file = fopen(filename, MODE_READ)))
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+
+ return;
+ }
+
+ for (i = 0; i < EM_LEVEL_SIZE; i++)
+ leveldata[i] = fgetc(file);
+
+ fclose(file);
+
+ /* check if level data is crypted by testing against known starting bytes
+ of the few existing crypted level files (from Emerald Mine 1 + 2) */
+
+ if ((leveldata[0] == 0xf1 ||
+ leveldata[0] == 0xf5) && leveldata[2] == 0xe7 && leveldata[3] == 0xee)
+ {
+ unsigned char code0 = 0x65;
+ unsigned char code1 = 0x11;
+
+ if (leveldata[0] == 0xf5) /* error in crypted Emerald Mine 2 levels */
+ leveldata[0] = 0xf1;
+
+ /* decode crypted level data */
+
+ for (i = 0; i < EM_LEVEL_SIZE; i++)
+ {
+ leveldata[i] ^= code0;
+ leveldata[i] -= code1;
+
+ code0 = (code0 + 7) & 0xff;
+ }
+ }
+
+ level->fieldx = EM_LEVEL_XSIZE;
+ level->fieldy = EM_LEVEL_YSIZE;
+
+ level->time = header[46] * 10;
+ level->gems_needed = header[47];
+
+ /* The original Emerald Mine levels have their level number stored
+ at the second byte of the level file...
+ Do not trust this information at other level files, e.g. EMC,
+ but correct it anyway (normally the first row is completely
+ steel wall, so the correction does not hurt anyway). */
+
+ if (leveldata[1] == nr)
+ leveldata[1] = leveldata[2]; /* correct level number field */
+
+ sprintf(level->name, "Level %d", nr); /* set level name */
+
+ level->score[SC_EMERALD] = header[36];
+ level->score[SC_DIAMOND] = header[37];
+ level->score[SC_ROBOT] = header[38];
+ level->score[SC_SPACESHIP] = header[39];
+ level->score[SC_BUG] = header[40];
+ level->score[SC_YAMYAM] = header[41];
+ level->score[SC_NUT] = header[42];
+ level->score[SC_DYNAMITE] = header[43];
+ level->score[SC_TIME_BONUS] = header[44];
+
+ level->num_yamyam_contents = 4;
+
+ for (i = 0; i < level->num_yamyam_contents; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ level->yamyam_content[i].e[x][y] =
+ map_em_element_yam(header[i * 9 + y * 3 + x]);
+
+ level->amoeba_speed = (header[52] * 256 + header[53]) % 256;
+ level->time_magic_wall = (header[54] * 256 + header[55]) * 16 / 100;
+ level->time_wheel = (header[56] * 256 + header[57]) * 16 / 100;
+ level->amoeba_content = EL_DIAMOND;
+
+ for (y = 0; y < level->fieldy; y++) for (x = 0; x < level->fieldx; x++)
+ {
+ int new_element = map_em_element_field(leveldata[y * EM_LEVEL_XSIZE + x]);
+
+ if (new_element == EL_AMOEBA_DEAD && level->amoeba_speed)
+ new_element = EL_AMOEBA_WET;
+
+ level->field[x][y] = new_element;
+ }
+
+ x = (header[48] * 256 + header[49]) % EM_LEVEL_XSIZE;
+ y = (header[48] * 256 + header[49]) / EM_LEVEL_XSIZE;
+ level->field[x][y] = EL_PLAYER_1;
+
+ x = (header[50] * 256 + header[51]) % EM_LEVEL_XSIZE;
+ y = (header[50] * 256 + header[51]) / EM_LEVEL_XSIZE;
+ level->field[x][y] = EL_PLAYER_2;
+}
+
+#endif
+
+void CopyNativeLevel_RND_to_EM(struct LevelInfo *level)
+{
+ static int ball_xy[8][2] =
+ {
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 0 },
+ { 0, 1 },
+ { 2, 1 },
+ { 0, 2 },
+ { 1, 2 },
+ { 2, 2 },
+ };
+ struct LevelInfo_EM *level_em = level->native_em_level;
+ struct LEVEL *lev = level_em->lev;
+ struct PLAYER **ply = level_em->ply;
+ int i, j, x, y;
+
+ lev->width = MIN(level->fieldx, EM_MAX_CAVE_WIDTH);
+ lev->height = MIN(level->fieldy, EM_MAX_CAVE_HEIGHT);
+
+ lev->time_seconds = level->time;
+ lev->required_initial = level->gems_needed;
+
+ lev->emerald_score = level->score[SC_EMERALD];
+ lev->diamond_score = level->score[SC_DIAMOND];
+ lev->alien_score = level->score[SC_ROBOT];
+ lev->tank_score = level->score[SC_SPACESHIP];
+ lev->bug_score = level->score[SC_BUG];
+ lev->eater_score = level->score[SC_YAMYAM];
+ lev->nut_score = level->score[SC_NUT];
+ lev->dynamite_score = level->score[SC_DYNAMITE];
+ lev->key_score = level->score[SC_KEY];
+ lev->exit_score = level->score[SC_TIME_BONUS];
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ lev->eater_array[i][y * 3 + x] =
+ map_element_RND_to_EM(level->yamyam_content[i].e[x][y]);
+
+ lev->amoeba_time = level->amoeba_speed;
+ lev->wonderwall_time_initial = level->time_magic_wall;
+ lev->wheel_time = level->time_wheel;
+
+ lev->android_move_time = level->android_move_time;
+ lev->android_clone_time = level->android_clone_time;
+ lev->ball_random = level->ball_random;
+ lev->ball_state_initial = level->ball_state_initial;
+ lev->ball_time = level->ball_time;
+ lev->num_ball_arrays = level->num_ball_contents;
+
+ lev->lenses_score = level->lenses_score;
+ lev->magnify_score = level->magnify_score;
+ lev->slurp_score = level->slurp_score;
+
+ lev->lenses_time = level->lenses_time;
+ lev->magnify_time = level->magnify_time;
+
+ lev->wind_direction_initial =
+ map_direction_RND_to_EM(level->wind_direction_initial);
+ lev->wind_cnt_initial = (level->wind_direction_initial != MV_NONE ?
+ lev->wind_time : 0);
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (j = 0; j < 8; j++)
+ lev->ball_array[i][j] =
+ map_element_RND_to_EM(level->
+ ball_content[i].e[ball_xy[j][0]][ball_xy[j][1]]);
+
+ map_android_clone_elements_RND_to_EM(level);
+
+ /* first fill the complete playfield with the default border element */
+ for (y = 0; y < EM_MAX_CAVE_HEIGHT; y++)
+ for (x = 0; x < EM_MAX_CAVE_WIDTH; x++)
+ level_em->cave[x][y] = ZBORDER;
+
+ if (BorderElement == EL_STEELWALL)
+ {
+ for (y = 0; y < lev->height + 2; y++)
+ for (x = 0; x < lev->width + 2; x++)
+ level_em->cave[x + 1][y + 1] = map_element_RND_to_EM(EL_STEELWALL);
+ }
+
+ /* then copy the real level contents from level file into the playfield */
+ for (y = 0; y < lev->height; y++) for (x = 0; x < lev->width; x++)
+ {
+ int new_element = map_element_RND_to_EM(level->field[x][y]);
+ int offset = (BorderElement == EL_STEELWALL ? 1 : 0);
+ int xx = x + 1 + offset;
+ int yy = y + 1 + offset;
+
+ if (level->field[x][y] == EL_AMOEBA_DEAD)
+ new_element = map_element_RND_to_EM(EL_AMOEBA_WET);
+
+ level_em->cave[xx][yy] = new_element;
+ }
+
+ for (i = 0; i < MAX_PLAYERS; i++)
+ {
+ ply[i]->x_initial = 0;
+ ply[i]->y_initial = 0;
+ }
+
+ /* initialize player positions and delete players from the playfield */
+ for (y = 0; y < lev->height; y++) for (x = 0; x < lev->width; x++)
+ {
+ if (ELEM_IS_PLAYER(level->field[x][y]))
+ {
+ int player_nr = GET_PLAYER_NR(level->field[x][y]);
+ int offset = (BorderElement == EL_STEELWALL ? 1 : 0);
+ int xx = x + 1 + offset;
+ int yy = y + 1 + offset;
+
+ ply[player_nr]->x_initial = xx;
+ ply[player_nr]->y_initial = yy;
+
+ level_em->cave[xx][yy] = map_element_RND_to_EM(EL_EMPTY);
+ }
+ }
+
+ if (BorderElement == EL_STEELWALL)
+ {
+ lev->width += 2;
+ lev->height += 2;
+ }
+}
+
+void CopyNativeLevel_EM_to_RND(struct LevelInfo *level)
+{
+ static int ball_xy[8][2] =
+ {
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 0 },
+ { 0, 1 },
+ { 2, 1 },
+ { 0, 2 },
+ { 1, 2 },
+ { 2, 2 },
+ };
+ struct LevelInfo_EM *level_em = level->native_em_level;
+ struct LEVEL *lev = level_em->lev;
+ struct PLAYER **ply = level_em->ply;
+ int i, j, x, y;
+
+ level->fieldx = MIN(lev->width, MAX_LEV_FIELDX);
+ level->fieldy = MIN(lev->height, MAX_LEV_FIELDY);
+
+ level->time = lev->time_seconds;
+ level->gems_needed = lev->required_initial;
+
+ sprintf(level->name, "Level %d", level->file_info.nr);
+
+ level->score[SC_EMERALD] = lev->emerald_score;
+ level->score[SC_DIAMOND] = lev->diamond_score;
+ level->score[SC_ROBOT] = lev->alien_score;
+ level->score[SC_SPACESHIP] = lev->tank_score;
+ level->score[SC_BUG] = lev->bug_score;
+ level->score[SC_YAMYAM] = lev->eater_score;
+ level->score[SC_NUT] = lev->nut_score;
+ level->score[SC_DYNAMITE] = lev->dynamite_score;
+ level->score[SC_KEY] = lev->key_score;
+ level->score[SC_TIME_BONUS] = lev->exit_score;
+
+ level->num_yamyam_contents = MAX_ELEMENT_CONTENTS;
+
+ for (i = 0; i < level->num_yamyam_contents; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ level->yamyam_content[i].e[x][y] =
+ map_element_EM_to_RND(lev->eater_array[i][y * 3 + x]);
+
+ level->amoeba_speed = lev->amoeba_time;
+ level->time_magic_wall = lev->wonderwall_time_initial;
+ level->time_wheel = lev->wheel_time;
+
+ level->android_move_time = lev->android_move_time;
+ level->android_clone_time = lev->android_clone_time;
+ level->ball_random = lev->ball_random;
+ level->ball_state_initial = lev->ball_state_initial;
+ level->ball_time = lev->ball_time;
+ level->num_ball_contents = lev->num_ball_arrays;
+
+ level->lenses_score = lev->lenses_score;
+ level->magnify_score = lev->magnify_score;
+ level->slurp_score = lev->slurp_score;
+
+ level->lenses_time = lev->lenses_time;
+ level->magnify_time = lev->magnify_time;
+
+ level->wind_direction_initial =
+ map_direction_EM_to_RND(lev->wind_direction_initial);
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (j = 0; j < 8; j++)
+ level->ball_content[i].e[ball_xy[j][0]][ball_xy[j][1]] =
+ map_element_EM_to_RND(lev->ball_array[i][j]);
+
+ map_android_clone_elements_EM_to_RND(level);
+
+ /* convert the playfield (some elements need special treatment) */
+ for (y = 0; y < level->fieldy; y++) for (x = 0; x < level->fieldx; x++)
+ {
+ int new_element = map_element_EM_to_RND(level_em->cave[x + 1][y + 1]);
+
+ if (new_element == EL_AMOEBA_WET && level->amoeba_speed == 0)
+ new_element = EL_AMOEBA_DEAD;
+
+ level->field[x][y] = new_element;
+ }
+
+ for (i = 0; i < MAX_PLAYERS; i++)
+ {
+ /* in case of all players set to the same field, use the first player */
+ int nr = MAX_PLAYERS - i - 1;
+ int jx = ply[nr]->x_initial - 1;
+ int jy = ply[nr]->y_initial - 1;
+
+ if (jx != -1 && jy != -1)
+ level->field[jx][jy] = EL_PLAYER_1 + nr;
+ }
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* functions for loading SP level */
+/* ------------------------------------------------------------------------- */
+
+#if 0
+
+#define NUM_SUPAPLEX_LEVELS_PER_PACKAGE 111
+#define SP_LEVEL_SIZE 1536
+#define SP_LEVEL_XSIZE 60
+#define SP_LEVEL_YSIZE 24
+#define SP_LEVEL_NAME_LEN 23
+
+static void LoadLevelFromFileStream_SP(FILE *file, struct LevelInfo *level,
+ int nr)
+{
+ int initial_player_gravity;
+ int num_special_ports;
+ int i, x, y;
+
+ /* for details of the Supaplex level format, see Herman Perk's Supaplex
+ documentation file "SPFIX63.DOC" from his Supaplex "SpeedFix" package */
+
+ /* read level body (width * height == 60 * 24 tiles == 1440 bytes) */
+ for (y = 0; y < SP_LEVEL_YSIZE; y++)
+ {
+ for (x = 0; x < SP_LEVEL_XSIZE; x++)
+ {
+ int element_old = fgetc(file);
+ int element_new;
+
+ if (element_old <= 0x27)
+ element_new = getMappedElement(EL_SP_START + element_old);
+ else if (element_old == 0x28)
+ element_new = EL_INVISIBLE_WALL;
+ else
+ {
+ Error(ERR_WARN, "in level %d, at position %d, %d:", nr, x, y);
+ Error(ERR_WARN, "invalid level element %d", element_old);
+
+ element_new = EL_UNKNOWN;
+ }
+
+ level->field[x][y] = element_new;
+ }
+ }
+
+ ReadUnusedBytesFromFile(file, 4); /* (not used by Supaplex engine) */
+
+ /* initial gravity: 1 == "on", anything else (0) == "off" */
+ initial_player_gravity = (fgetc(file) == 1 ? TRUE : FALSE);
+
+ for (i = 0; i < MAX_PLAYERS; i++)
+ level->initial_player_gravity[i] = initial_player_gravity;
+
+ ReadUnusedBytesFromFile(file, 1); /* (not used by Supaplex engine) */
+
+ /* level title in uppercase letters, padded with dashes ("-") (23 bytes) */
+ for (i = 0; i < SP_LEVEL_NAME_LEN; i++)
+ level->name[i] = fgetc(file);
+ level->name[SP_LEVEL_NAME_LEN] = '\0';
+
+ /* initial "freeze zonks": 2 == "on", anything else (0, 1) == "off" */
+ ReadUnusedBytesFromFile(file, 1); /* (not used by R'n'D engine) */
+
+ /* number of infotrons needed; 0 means that Supaplex will count the total
+ amount of infotrons in the level and use the low byte of that number
+ (a multiple of 256 infotrons will result in "0 infotrons needed"!) */
+ level->gems_needed = fgetc(file);
+
+ /* number of special ("gravity") port entries below (maximum 10 allowed) */
+ num_special_ports = fgetc(file);
+
+ /* database of properties of up to 10 special ports (6 bytes per port) */
+ for (i = 0; i < 10; i++)
+ {
+ int port_location, port_x, port_y, port_element;
+ int gravity;
+
+ /* high and low byte of the location of a special port; if (x, y) are the
+ coordinates of a port in the field and (0, 0) is the top-left corner,
+ the 16 bit value here calculates as 2 * (x + (y * 60)) (this is twice
+ of what may be expected: Supaplex works with a game field in memory
+ which is 2 bytes per tile) */
+ port_location = getFile16BitBE(file);
+
+ /* change gravity: 1 == "turn on", anything else (0) == "turn off" */
+ gravity = fgetc(file);
+
+ /* "freeze zonks": 2 == "turn on", anything else (0, 1) == "turn off" */
+ ReadUnusedBytesFromFile(file, 1); /* (not used by R'n'D engine) */
+
+ /* "freeze enemies": 1 == "turn on", anything else (0) == "turn off" */
+ ReadUnusedBytesFromFile(file, 1); /* (not used by R'n'D engine) */
+
+ ReadUnusedBytesFromFile(file, 1); /* (not used by Supaplex engine) */
+
+ if (i >= num_special_ports)
+ continue;
+
+ port_x = (port_location / 2) % SP_LEVEL_XSIZE;
+ port_y = (port_location / 2) / SP_LEVEL_XSIZE;
+
+ if (port_x < 0 || port_x >= SP_LEVEL_XSIZE ||
+ port_y < 0 || port_y >= SP_LEVEL_YSIZE)
+ {
+ Error(ERR_WARN, "special port position (%d, %d) out of bounds",
+ port_x, port_y);
+
+ continue;
+ }
+
+ port_element = level->field[port_x][port_y];
+
+ if (port_element < EL_SP_GRAVITY_PORT_RIGHT ||
+ port_element > EL_SP_GRAVITY_PORT_UP)
+ {
+ Error(ERR_WARN, "no special port at position (%d, %d)", port_x, port_y);
+
+ continue;
+ }
+
+ /* change previous (wrong) gravity inverting special port to either
+ gravity enabling special port or gravity disabling special port */
+ level->field[port_x][port_y] +=
+ (gravity == 1 ? EL_SP_GRAVITY_ON_PORT_RIGHT :
+ EL_SP_GRAVITY_OFF_PORT_RIGHT) - EL_SP_GRAVITY_PORT_RIGHT;
+ }
+
+ ReadUnusedBytesFromFile(file, 4); /* (not used by Supaplex engine) */
+
+ /* change special gravity ports without database entries to normal ports */
+ for (y = 0; y < SP_LEVEL_YSIZE; y++)
+ for (x = 0; x < SP_LEVEL_XSIZE; x++)
+ if (level->field[x][y] >= EL_SP_GRAVITY_PORT_RIGHT &&
+ level->field[x][y] <= EL_SP_GRAVITY_PORT_UP)
+ level->field[x][y] += EL_SP_PORT_RIGHT - EL_SP_GRAVITY_PORT_RIGHT;
+
+ /* auto-determine number of infotrons if it was stored as "0" -- see above */
+ if (level->gems_needed == 0)
+ {
+ for (y = 0; y < SP_LEVEL_YSIZE; y++)
+ for (x = 0; x < SP_LEVEL_XSIZE; x++)
+ if (level->field[x][y] == EL_SP_INFOTRON)
+ level->gems_needed++;
+
+ level->gems_needed &= 0xff; /* only use low byte -- see above */
+ }
+
+ level->fieldx = SP_LEVEL_XSIZE;
+ level->fieldy = SP_LEVEL_YSIZE;
+
+ level->time = 0; /* no time limit */
+ level->amoeba_speed = 0;
+ level->time_magic_wall = 0;
+ level->time_wheel = 0;
+ level->amoeba_content = EL_EMPTY;
+
+#if 1
+ /* original Supaplex does not use score values -- use default values */
+#else
+ for (i = 0; i < LEVEL_SCORE_ELEMENTS; i++)
+ level->score[i] = 0;
+#endif
+
+ /* there are no yamyams in supaplex levels */
+ for (i = 0; i < level->num_yamyam_contents; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ level->yamyam_content[i].e[x][y] = EL_EMPTY;
+}
+
+static void LoadLevelFromFileInfo_SP(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ char *filename = level_file_info->filename;
+ FILE *file;
+ int nr = level_file_info->nr - leveldir_current->first_level;
+ int i, l, x, y;
+ char name_first, name_last;
+ struct LevelInfo 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;
+
+ if (!(file = fopen(filename, MODE_READ)))
+ {
+ level->no_valid_file = TRUE;
+
+ if (!level_info_only)
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+
+ return;
+ }
+
+ /* position file stream to the requested level inside the level package */
+ if (level_file_info->packed &&
+ fseek(file, nr * SP_LEVEL_SIZE, SEEK_SET) != 0)
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "cannot fseek in file '%s' -- using empty level", filename);
+
+ return;
+ }
+
+ /* 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 = nr; l < NUM_SUPAPLEX_LEVELS_PER_PACKAGE; l++)
+ {
+ LoadLevelFromFileStream_SP(file, level, l);
+
+ /* check if this level is a part of a bigger multi-part level */
+
+ name_first = level->name[0];
+ name_last = level->name[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'));
+
+ /* correct leading multipart level meta information in level name */
+ for (i = 0; i < SP_LEVEL_NAME_LEN && level->name[i] == name_first; i++)
+ level->name[i] = '-';
+
+ /* correct trailing multipart level meta information in level name */
+ for (i = SP_LEVEL_NAME_LEN - 1; i >= 0 && level->name[i] == name_last; i--)
+ level->name[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 ||
+ !strEqual(level->name, multipart_level.name)))
+ {
+ /* 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 = *level;
+
+ /* clear playfield of new multi-part level */
+ for (y = 0; y < MAX_LEV_FIELDY; y++)
+ for (x = 0; x < MAX_LEV_FIELDX; x++)
+ multipart_level.field[x][y] = EL_EMPTY;
+ }
+
+ 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.name);
+#endif
+
+ if (multipart_xpos * SP_LEVEL_XSIZE > MAX_LEV_FIELDX ||
+ multipart_ypos * SP_LEVEL_YSIZE > MAX_LEV_FIELDY)
+ {
+ Error(ERR_WARN, "multi-part level is too big -- ignoring part of it");
+
+ break;
+ }
+
+ multipart_level.fieldx = MAX(multipart_level.fieldx,
+ multipart_xpos * SP_LEVEL_XSIZE);
+ multipart_level.fieldy = MAX(multipart_level.fieldy,
+ multipart_ypos * SP_LEVEL_YSIZE);
+
+ /* copy level part at the right position of multi-part level */
+ for (y = 0; y < SP_LEVEL_YSIZE; y++)
+ {
+ for (x = 0; x < SP_LEVEL_XSIZE; x++)
+ {
+ int start_x = (multipart_xpos - 1) * SP_LEVEL_XSIZE;
+ int start_y = (multipart_ypos - 1) * SP_LEVEL_YSIZE;
+
+ multipart_level.field[start_x + x][start_y + y] = level->field[x][y];
+ }
+ }
+ }
+
+ fclose(file);
+
+ if (use_empty_level)
+ {
+ setLevelInfoToDefaults(level);
+
+ level->fieldx = SP_LEVEL_XSIZE;
+ level->fieldy = SP_LEVEL_YSIZE;
+
+ for (y = 0; y < SP_LEVEL_YSIZE; y++)
+ for (x = 0; x < SP_LEVEL_XSIZE; x++)
+ level->field[x][y] = EL_EMPTY;
+
+ strcpy(level->name, "-------- EMPTY --------");
+
+ Error(ERR_WARN, "single part of multi-part level -- using empty level");
+ }
+
+ if (reading_multipart_level)
+ *level = multipart_level;
+}
+
+#endif
+
+void CopyNativeLevel_RND_to_SP(struct LevelInfo *level)
+{
+ struct LevelInfo_SP *level_sp = level->native_sp_level;
+ LevelInfoType *header = &level_sp->header;
+ int i, x, y;
+
+ level_sp->width = level->fieldx;
+ level_sp->height = level->fieldy;
+
+ for (x = 0; x < level->fieldx; x++)
+ for (y = 0; y < level->fieldy; y++)
+ level_sp->playfield[x][y] = map_element_RND_to_SP(level->field[x][y]);
+
+ header->InitialGravity = (level->initial_player_gravity[0] ? 1 : 0);
+
+ for (i = 0; i < SP_LEVEL_NAME_LEN; i++)
+ header->LevelTitle[i] = level->name[i];
+ /* !!! NO STRING TERMINATION IN SUPAPLEX VB CODE YET -- FIX THIS !!! */
+
+ header->InfotronsNeeded = level->gems_needed;
+
+ header->SpecialPortCount = 0;
+
+ for (x = 0; x < level->fieldx; x++) for (y = 0; y < level->fieldy; y++)
+ {
+ boolean gravity_port_found = FALSE;
+ boolean gravity_port_valid = FALSE;
+ int gravity_port_flag;
+ int gravity_port_base_element;
+ int element = level->field[x][y];
+
+ if (element >= EL_SP_GRAVITY_ON_PORT_RIGHT &&
+ element <= EL_SP_GRAVITY_ON_PORT_UP)
+ {
+ gravity_port_found = TRUE;
+ gravity_port_valid = TRUE;
+ gravity_port_flag = 1;
+ gravity_port_base_element = EL_SP_GRAVITY_ON_PORT_RIGHT;
+ }
+ else if (element >= EL_SP_GRAVITY_OFF_PORT_RIGHT &&
+ element <= EL_SP_GRAVITY_OFF_PORT_UP)
+ {
+ gravity_port_found = TRUE;
+ gravity_port_valid = TRUE;
+ gravity_port_flag = 0;
+ gravity_port_base_element = EL_SP_GRAVITY_OFF_PORT_RIGHT;
+ }
+ else if (element >= EL_SP_GRAVITY_PORT_RIGHT &&
+ element <= EL_SP_GRAVITY_PORT_UP)
+ {
+ /* change R'n'D style gravity inverting special port to normal port
+ (there are no gravity inverting ports in native Supaplex engine) */
+
+ gravity_port_found = TRUE;
+ gravity_port_valid = FALSE;
+ gravity_port_base_element = EL_SP_GRAVITY_PORT_RIGHT;
+ }
+
+ if (gravity_port_found)
+ {
+ if (gravity_port_valid &&
+ header->SpecialPortCount < SP_MAX_SPECIAL_PORTS)
+ {
+ SpecialPortType *port = &header->SpecialPort[header->SpecialPortCount];
+
+ port->PortLocation = (y * level->fieldx + x) * 2;
+ port->Gravity = gravity_port_flag;
+
+ element += EL_SP_GRAVITY_PORT_RIGHT - gravity_port_base_element;
+
+ header->SpecialPortCount++;
+ }
+ else
+ {
+ /* change special gravity port to normal port */
+
+ element += EL_SP_PORT_RIGHT - gravity_port_base_element;
+ }
+
+ level_sp->playfield[x][y] = element - EL_SP_START;
+ }
+ }
+}
+
+void CopyNativeLevel_SP_to_RND(struct LevelInfo *level)
+{
+ struct LevelInfo_SP *level_sp = level->native_sp_level;
+ LevelInfoType *header = &level_sp->header;
+ int i, x, y;
+
+ level->fieldx = level_sp->width;
+ level->fieldy = level_sp->height;
+
+ for (x = 0; x < level->fieldx; x++)
+ {
+ for (y = 0; y < level->fieldy; y++)
+ {
+ int element_old = level_sp->playfield[x][y];
+ int element_new = getMappedElement(map_element_SP_to_RND(element_old));
+
+ if (element_new == EL_UNKNOWN)
+ Error(ERR_WARN, "invalid element %d at position %d, %d",
+ element_old, x, y);
+
+ level->field[x][y] = element_new;
+ }
+ }
+
+ for (i = 0; i < MAX_PLAYERS; i++)
+ level->initial_player_gravity[i] =
+ (header->InitialGravity == 1 ? TRUE : FALSE);
+
+ for (i = 0; i < SP_LEVEL_NAME_LEN; i++)
+ level->name[i] = header->LevelTitle[i];
+ level->name[SP_LEVEL_NAME_LEN] = '\0';
+
+ level->gems_needed = header->InfotronsNeeded;
+
+ for (i = 0; i < header->SpecialPortCount; i++)
+ {
+ SpecialPortType *port = &header->SpecialPort[i];
+ int port_location = port->PortLocation;
+ int gravity = port->Gravity;
+ int port_x, port_y, port_element;
+
+ port_x = (port_location / 2) % level->fieldx;
+ port_y = (port_location / 2) / level->fieldx;
+
+ if (port_x < 0 || port_x >= level->fieldx ||
+ port_y < 0 || port_y >= level->fieldy)
+ {
+ Error(ERR_WARN, "special port position (%d, %d) out of bounds",
+ port_x, port_y);
+
+ continue;
+ }
+
+ port_element = level->field[port_x][port_y];
+
+ if (port_element < EL_SP_GRAVITY_PORT_RIGHT ||
+ port_element > EL_SP_GRAVITY_PORT_UP)
+ {
+ Error(ERR_WARN, "no special port at position (%d, %d)", port_x, port_y);
+
+ continue;
+ }
+
+ /* change previous (wrong) gravity inverting special port to either
+ gravity enabling special port or gravity disabling special port */
+ level->field[port_x][port_y] +=
+ (gravity == 1 ? EL_SP_GRAVITY_ON_PORT_RIGHT :
+ EL_SP_GRAVITY_OFF_PORT_RIGHT) - EL_SP_GRAVITY_PORT_RIGHT;
+ }
+
+ /* change special gravity ports without database entries to normal ports */
+ for (x = 0; x < level->fieldx; x++)
+ for (y = 0; y < level->fieldy; y++)
+ if (level->field[x][y] >= EL_SP_GRAVITY_PORT_RIGHT &&
+ level->field[x][y] <= EL_SP_GRAVITY_PORT_UP)
+ level->field[x][y] += EL_SP_PORT_RIGHT - EL_SP_GRAVITY_PORT_RIGHT;
+
+ level->time = 0; /* no time limit */
+ level->amoeba_speed = 0;
+ level->time_magic_wall = 0;
+ level->time_wheel = 0;
+ level->amoeba_content = EL_EMPTY;
+
+#if 1
+ /* original Supaplex does not use score values -- use default values */
+#else
+ for (i = 0; i < LEVEL_SCORE_ELEMENTS; i++)
+ level->score[i] = 0;
+#endif
+
+ /* there are no yamyams in supaplex levels */
+ for (i = 0; i < level->num_yamyam_contents; i++)
+ for (x = 0; x < 3; x++)
+ for (y = 0; y < 3; y++)
+ level->yamyam_content[i].e[x][y] = EL_EMPTY;
+}
+
+static void CopyNativeTape_RND_to_SP(struct LevelInfo *level)
+{
+ struct LevelInfo_SP *level_sp = level->native_sp_level;
+ struct DemoInfo_SP *demo = &level_sp->demo;
+ int i, j;
+
+ /* always start with reliable default values */
+ demo->is_available = FALSE;
+ demo->length = 0;
+
+ if (TAPE_IS_EMPTY(tape))
+ return;
+
+ demo->level_nr = tape.level_nr; /* (currently not used) */
+
+ level_sp->header.DemoRandomSeed = tape.random_seed;
+
+ demo->length = 0;
+ for (i = 0; i < tape.length; i++)
+ {
+ int demo_action = map_key_RND_to_SP(tape.pos[i].action[0]);
+ int demo_repeat = tape.pos[i].delay;
+
+ for (j = 0; j < demo_repeat / 16; j++)
+ demo->data[demo->length++] = 0xf0 | demo_action;
+
+ if (demo_repeat % 16)
+ demo->data[demo->length++] = ((demo_repeat % 16 - 1) << 4) | demo_action;
+ }
+
+ demo->data[demo->length++] = 0xff;
+
+ demo->is_available = TRUE;
+}
+
+static void setTapeInfoToDefaults();
+
+static void CopyNativeTape_SP_to_RND(struct LevelInfo *level)
+{
+ struct LevelInfo_SP *level_sp = level->native_sp_level;
+ struct DemoInfo_SP *demo = &level_sp->demo;
+ char *filename = level->file_info.filename;
+ int i;
+
+ /* always start with reliable default values */
+ setTapeInfoToDefaults();
+
+ if (!demo->is_available)
+ return;
+
+ tape.level_nr = demo->level_nr; /* (currently not used) */
+ tape.length = demo->length - 1; /* without "end of demo" byte */
+ tape.random_seed = level_sp->header.DemoRandomSeed;
+
+ TapeSetDateFromEpochSeconds(getFileTimestampEpochSeconds(filename));
+
+ for (i = 0; i < demo->length - 1; i++)
+ {
+ int demo_action = demo->data[i] & 0x0f;
+ int demo_repeat = (demo->data[i] & 0xf0) >> 4;
+
+ tape.pos[i].action[0] = map_key_SP_to_RND(demo_action);
+ tape.pos[i].delay = demo_repeat + 1;
+ }
+
+ tape.length_seconds = GetTapeLength();
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* functions for loading DC level */
+/* ------------------------------------------------------------------------- */
+
+#define DC_LEVEL_HEADER_SIZE 344
+
+unsigned short getDecodedWord_DC(unsigned short data_encoded, boolean init)
+{
+ static int last_data_encoded;
+ static int offset1;
+ static int offset2;
+ int diff;
+ int diff_hi, diff_lo;
+ int data_hi, data_lo;
+ unsigned short data_decoded;
+
+ if (init)
+ {
+ last_data_encoded = 0;
+ offset1 = -1;
+ offset2 = 0;
+
+ return 0;
+ }
+
+ diff = data_encoded - last_data_encoded;
+ diff_hi = diff & ~0xff;
+ diff_lo = diff & 0xff;
+
+ offset2 += diff_lo;
+
+ data_hi = diff_hi - (offset1 << 8) + (offset2 & 0xff00);
+ data_lo = (diff_lo + (data_hi >> 16)) & 0x00ff;
+ data_hi = data_hi & 0xff00;
+
+ data_decoded = data_hi | data_lo;
+
+ last_data_encoded = data_encoded;
+
+ offset1 = (offset1 + 1) % 31;
+ offset2 = offset2 & 0xff;
+
+ return data_decoded;
+}