+ for (j = 0; j < MAX_ELEMENT_NAME_LEN; j++)
+ element_info[element].description[j] = getFile8Bit(file);
+ element_info[element].description[MAX_ELEMENT_NAME_LEN] = 0;
+
+ Properties[element][EP_BITFIELD_BASE] = getFile32BitBE(file);
+
+ /* some free bytes for future properties and padding */
+ ReadUnusedBytesFromFile(file, 7);
+
+ element_info[element].use_gfx_element = getFile8Bit(file);
+ element_info[element].gfx_element =
+ checkLevelElement(getFile16BitBE(file));
+
+ element_info[element].collect_score = getFile8Bit(file);
+ element_info[element].collect_count = getFile8Bit(file);
+
+ element_info[element].push_delay_fixed = getFile16BitBE(file);
+ element_info[element].push_delay_random = getFile16BitBE(file);
+ element_info[element].move_delay_fixed = getFile16BitBE(file);
+ element_info[element].move_delay_random = getFile16BitBE(file);
+
+ element_info[element].move_pattern = getFile16BitBE(file);
+ element_info[element].move_direction_initial = getFile8Bit(file);
+ element_info[element].move_stepsize = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ element_info[element].content[x][y] =
+ checkLevelElement(getFile16BitBE(file));
+
+ element_info[element].change->events = getFile32BitBE(file);
+
+ element_info[element].change->target_element =
+ checkLevelElement(getFile16BitBE(file));
+
+ element_info[element].change->delay_fixed = getFile16BitBE(file);
+ element_info[element].change->delay_random = getFile16BitBE(file);
+ element_info[element].change->delay_frames = getFile16BitBE(file);
+
+ element_info[element].change->trigger_element =
+ checkLevelElement(getFile16BitBE(file));
+
+ element_info[element].change->explode = getFile8Bit(file);
+ element_info[element].change->use_content = getFile8Bit(file);
+ element_info[element].change->only_complete = getFile8Bit(file);
+ element_info[element].change->use_random_change = getFile8Bit(file);
+
+ element_info[element].change->random = getFile8Bit(file);
+ element_info[element].change->power = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ element_info[element].change->content[x][y] =
+ checkLevelElement(getFile16BitBE(file));
+
+ element_info[element].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 */
+ element_info[element].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, x, y;
+
+ element = getFile16BitBE(file);
+
+ if (!IS_CUSTOM_ELEMENT(element))
+ {
+ Error(ERR_WARN, "invalid custom element number %d", element);
+
+ element = EL_DUMMY;
+ }
+
+ 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;
+
+ Properties[element][EP_BITFIELD_BASE] = getFile32BitBE(file);
+ ReadUnusedBytesFromFile(file, 4); /* reserved for more base properties */
+
+ ei->num_change_pages = getFile8Bit(file);
+
+ /* some free bytes for future base property values and padding */
+ ReadUnusedBytesFromFile(file, 5);
+
+ chunk_size_expected = LEVEL_CHUNK_CUS4_SIZE(ei->num_change_pages);
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size - 48);
+ return chunk_size_expected;
+ }
+
+ /* read custom property values */
+
+ ei->use_gfx_element = getFile8Bit(file);
+ ei->gfx_element = checkLevelElement(getFile16BitBE(file));
+
+ ei->collect_score = getFile8Bit(file);
+ ei->collect_count = 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);
+
+ ei->slippery_type = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ ei->content[x][y] = checkLevelElement(getFile16BitBE(file));
+
+ /* some free bytes for future custom property values and padding */
+ ReadUnusedBytesFromFile(file, 12);
+
+ /* read change property values */
+
+ setElementChangePages(ei, ei->num_change_pages);
+
+ for (i = 0; i < ei->num_change_pages; i++)
+ {
+ struct ElementChangeInfo *change = &ei->change_page[i];
+
+ /* always start with reliable default values */
+ setElementChangeInfoToDefaults(change);
+
+ change->events = getFile32BitBE(file);
+
+ change->target_element = checkLevelElement(getFile16BitBE(file));
+
+ change->delay_fixed = getFile16BitBE(file);
+ change->delay_random = getFile16BitBE(file);
+ change->delay_frames = getFile16BitBE(file);
+
+ change->trigger_element = checkLevelElement(getFile16BitBE(file));
+
+ change->explode = getFile8Bit(file);
+ change->use_content = getFile8Bit(file);
+ change->only_complete = getFile8Bit(file);
+ change->use_random_change = getFile8Bit(file);
+
+ change->random = getFile8Bit(file);
+ change->power = getFile8Bit(file);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ change->content[x][y] = checkLevelElement(getFile16BitBE(file));
+
+ change->can_change = getFile8Bit(file);
+
+ change->sides = getFile8Bit(file);
+
+ if (change->sides == CH_SIDE_NONE) /* correct empty sides field */
+ change->sides = CH_SIDE_ANY;
+
+ /* some free bytes for future change property values and padding */
+ ReadUnusedBytesFromFile(file, 8);
+ }
+
+ /* mark this custom element as modified */
+ ei->modified_settings = TRUE;
+
+ return chunk_size;
+}
+
+void LoadLevelFromFilename(struct LevelInfo *level, char *filename)
+{
+ char cookie[MAX_LINE_LEN];
+ char chunk_name[CHUNK_ID_LEN + 1];
+ int chunk_size;
+ FILE *file;
+
+ /* always start with reliable default values */
+ setLevelInfoToDefaults(level);
+
+ if (!(file = fopen(filename, MODE_READ)))
+ {
+ level->no_level_file = TRUE;
+
+ if (level != &level_template)
+ Error(ERR_WARN, "cannot read level '%s' - creating new level", filename);
+
+ return;
+ }
+
+ getFileChunkBE(file, chunk_name, NULL);
+ if (strcmp(chunk_name, "RND1") == 0)
+ {
+ getFile32BitBE(file); /* not used */
+
+ getFileChunkBE(file, chunk_name, NULL);
+ if (strcmp(chunk_name, "CAVE") != 0)
+ {
+ 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);
+ fgets(&cookie[4], MAX_LINE_LEN - 4, file);
+ if (strlen(cookie) > 0 && cookie[strlen(cookie) - 1] == '\n')
+ cookie[strlen(cookie) - 1] = '\0';
+
+ if (!checkCookieString(cookie, LEVEL_COOKIE_TMPL))
+ {
+ Error(ERR_WARN, "unknown format of level file '%s'", filename);
+ fclose(file);
+ return;
+ }
+
+ if ((level->file_version = getFileVersionFromCookieString(cookie)) == -1)
+ {
+ 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_HEADER_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", FILE_VERS_CHUNK_SIZE, LoadLevel_VERS },
+ { "HEAD", LEVEL_HEADER_SIZE, LoadLevel_HEAD },
+ { "AUTH", MAX_LEVEL_AUTHOR_LEN, LoadLevel_AUTH },
+ { "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 },
+ { NULL, 0, NULL }
+ };
+
+ while (getFileChunkBE(file, chunk_name, &chunk_size))
+ {
+ int i = 0;
+
+ while (chunk_info[i].name != NULL &&
+ strcmp(chunk_name, chunk_info[i].name) != 0)
+ 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);
+}
+
+static void LoadLevel_InitVersion(struct LevelInfo *level, char *filename)
+{
+ if (leveldir_current == NULL) /* only when dumping level */
+ return;
+
+#if 0
+ printf("::: sort_priority: %d\n", leveldir_current->sort_priority);
+#endif
+
+ /* determine correct game engine version of current level */
+#if 1
+ if (!leveldir_current->latest_engine)
+#else
+ if (IS_LEVELCLASS_CONTRIB(leveldir_current) ||
+ IS_LEVELCLASS_PRIVATE(leveldir_current) ||
+ IS_LEVELCLASS_UNDEFINED(leveldir_current))
+#endif
+ {
+#if 0
+ printf("\n::: This level is private or contributed: '%s'\n", filename);
+#endif
+
+#if 0
+ printf("\n::: Use the stored game engine version for this level\n");
+#endif
+
+ /* For all levels which are not forced to use the latest game engine
+ version (normally user contributed, private and undefined levels),
+ use the version of the game engine the levels were created for.
+
+ Since 2.0.1, the game engine version is now directly stored
+ in the level file (chunk "VERS"), so there is no need anymore
+ to set the game version from the file version (except for old,
+ pre-2.0 levels, where the game version is still taken from the
+ file format version used to store the level -- see above). */
+
+ /* do some special adjustments to support older level versions */
+ if (level->file_version == FILE_VERSION_1_0)
+ {
+ Error(ERR_WARN, "level file '%s' has version number 1.0", filename);
+ Error(ERR_WARN, "using high speed movement for player");
+
+ /* player was faster than monsters in (pre-)1.0 levels */
+ level->double_speed = TRUE;
+ }
+
+ /* Default behaviour for EM style gems was "slippery" only in 2.0.1 */
+ if (level->game_version == VERSION_IDENT(2,0,1,0))
+ level->em_slippery_gems = TRUE;
+ }
+ else
+ {
+#if 0
+ printf("\n::: ALWAYS USE LATEST ENGINE FOR THIS LEVEL: [%d] '%s'\n",
+ leveldir_current->sort_priority, filename);
+#endif
+
+#if 0
+ printf("\n::: Use latest game engine version for this level.\n");
+#endif
+
+ /* For all levels which are forced to use the latest game engine version
+ (normally all but user contributed, private and undefined levels), set
+ the game engine version to the actual version; this allows for actual
+ corrections in the game engine to take effect for existing, converted
+ levels (from "classic" or other existing games) to make the emulation
+ of the corresponding game more accurate, while (hopefully) not breaking
+ existing levels created from other players. */
+
+#if 0
+ printf("::: changing engine from %d to %d\n",
+ level->game_version, GAME_VERSION_ACTUAL);
+#endif
+
+ level->game_version = GAME_VERSION_ACTUAL;
+
+ /* Set special EM style gems behaviour: EM style gems slip down from
+ normal, steel and growing wall. As this is a more fundamental change,
+ it seems better to set the default behaviour to "off" (as it is more
+ natural) and make it configurable in the level editor (as a property
+ of gem style elements). Already existing converted levels (neither
+ private nor contributed levels) are changed to the new behaviour. */
+
+ if (level->file_version < FILE_VERSION_2_0)
+ level->em_slippery_gems = TRUE;
+ }
+
+#if 0
+ printf("::: => %d\n", level->game_version);
+#endif
+}
+
+static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
+{
+ int i, j;
+
+ /* map custom element change events that have changed in newer versions
+ (these following values were accidentally changed in version 3.0.1) */
+ if (level->game_version <= VERSION_IDENT(3,0,0,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ /* order of checking and copying events to be mapped is important */
+ for (j = CE_BY_OTHER_ACTION; j >= CE_BY_PLAYER_OBSOLETE; j--)
+ {
+ if (HAS_CHANGE_EVENT(element, j - 2))
+ {
+ SET_CHANGE_EVENT(element, j - 2, FALSE);
+ SET_CHANGE_EVENT(element, j, TRUE);
+ }
+ }
+
+ /* order of checking and copying events to be mapped is important */
+ for (j = CE_OTHER_GETS_COLLECTED; j >= CE_COLLISION_ACTIVE; j--)
+ {
+ if (HAS_CHANGE_EVENT(element, j - 1))
+ {
+ SET_CHANGE_EVENT(element, j - 1, FALSE);
+ SET_CHANGE_EVENT(element, j, TRUE);
+ }
+ }
+ }
+ }
+
+ /* some custom element change events get mapped since version 3.0.3 */
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (HAS_CHANGE_EVENT(element, CE_BY_PLAYER_OBSOLETE) ||
+ HAS_CHANGE_EVENT(element, CE_BY_COLLISION_OBSOLETE))
+ {
+ SET_CHANGE_EVENT(element, CE_BY_PLAYER_OBSOLETE, FALSE);
+ SET_CHANGE_EVENT(element, CE_BY_COLLISION_OBSOLETE, FALSE);
+
+ SET_CHANGE_EVENT(element, CE_BY_DIRECT_ACTION, TRUE);
+ }
+ }
+
+ /* initialize "can_change" field for old levels with only one change page */
+ if (level->game_version <= VERSION_IDENT(3,0,2,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (CAN_CHANGE(element))
+ element_info[element].change->can_change = TRUE;
+ }
+ }
+
+#if 0
+ /* set default push delay values (corrected since version 3.0.7-1) */
+ if (level->game_version < VERSION_IDENT(3,0,7,1))
+ {
+ game.default_push_delay_fixed = 2;
+ game.default_push_delay_random = 8;
+ }
+ else
+ {
+ game.default_push_delay_fixed = 8;
+ game.default_push_delay_random = 8;
+ }
+
+ /* set uninitialized push delay values of custom elements in older levels */
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (element_info[element].push_delay_fixed == -1)
+ element_info[element].push_delay_fixed = game.default_push_delay_fixed;
+ if (element_info[element].push_delay_random == -1)
+ element_info[element].push_delay_random = game.default_push_delay_random;
+ }
+#endif
+
+ /* initialize element properties for level editor etc. */
+ InitElementPropertiesEngine(level->game_version);
+}
+
+static void LoadLevel_InitPlayfield(struct LevelInfo *level, char *filename)
+{
+ int x, y;
+
+ /* map elements that have changed in newer versions */
+ for (y = 0; y < level->fieldy; y++)
+ {
+ for (x = 0; x < level->fieldx; x++)
+ {
+ int element = level->field[x][y];
+
+ if (level->game_version <= VERSION_IDENT(2,2,0,0))
+ {
+ /* map game font elements */
+ element = (element == EL_CHAR('[') ? EL_CHAR_AUMLAUT :
+ element == EL_CHAR('\\') ? EL_CHAR_OUMLAUT :
+ element == EL_CHAR(']') ? EL_CHAR_UUMLAUT :
+ element == EL_CHAR('^') ? EL_CHAR_COPYRIGHT : element);
+ }
+
+ if (level->game_version < VERSION_IDENT(3,0,0,0))
+ {
+ /* map Supaplex gravity tube elements */
+ element = (element == EL_SP_GRAVITY_PORT_LEFT ? EL_SP_PORT_LEFT :
+ element == EL_SP_GRAVITY_PORT_RIGHT ? EL_SP_PORT_RIGHT :
+ element == EL_SP_GRAVITY_PORT_UP ? EL_SP_PORT_UP :
+ element == EL_SP_GRAVITY_PORT_DOWN ? EL_SP_PORT_DOWN :
+ element);
+ }
+
+ level->field[x][y] = element;
+ }
+ }
+
+ /* copy elements to runtime playfield array */
+ for (x = 0; x < MAX_LEV_FIELDX; x++)
+ for (y = 0; y < MAX_LEV_FIELDY; y++)
+ Feld[x][y] = level->field[x][y];
+
+ /* initialize level size variables for faster access */
+ lev_fieldx = level->fieldx;
+ lev_fieldy = level->fieldy;
+
+ /* determine border element for this level */
+ SetBorderElement();
+}
+
+void LoadLevelTemplate(int level_nr)
+{
+ char *filename = getLevelFilename(level_nr);
+
+ LoadLevelFromFilename(&level_template, filename);
+
+ LoadLevel_InitVersion(&level, filename);
+ LoadLevel_InitElements(&level, filename);
+
+ ActivateLevelTemplate();
+}
+
+void LoadLevel(int level_nr)
+{
+ char *filename = getLevelFilename(level_nr);
+
+ LoadLevelFromFilename(&level, filename);
+
+ if (level.use_custom_template)
+ LoadLevelTemplate(-1);
+
+#if 1
+ LoadLevel_InitVersion(&level, filename);
+ LoadLevel_InitElements(&level, filename);
+ LoadLevel_InitPlayfield(&level, filename);
+#else
+ LoadLevel_InitLevel(&level, filename);
+#endif
+}
+
+static void SaveLevel_VERS(FILE *file, struct LevelInfo *level)
+{
+ putFileVersion(file, level->file_version);
+ putFileVersion(file, level->game_version);
+}
+
+static void SaveLevel_HEAD(FILE *file, struct LevelInfo *level)
+{
+ int i, x, y;
+
+ putFile8Bit(file, level->fieldx);
+ putFile8Bit(file, level->fieldy);
+
+ putFile16BitBE(file, level->time);
+ putFile16BitBE(file, level->gems_needed);
+
+ for (i = 0; i < MAX_LEVEL_NAME_LEN; i++)
+ putFile8Bit(file, level->name[i]);
+
+ for (i = 0; i < LEVEL_SCORE_ELEMENTS; i++)
+ putFile8Bit(file, level->score[i]);
+
+ for (i = 0; i < STD_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile8Bit(file, (level->encoding_16bit_yamyam ? EL_EMPTY :
+ level->yamyam_content[i][x][y]));
+ putFile8Bit(file, level->amoeba_speed);
+ putFile8Bit(file, level->time_magic_wall);
+ putFile8Bit(file, level->time_wheel);
+ putFile8Bit(file, (level->encoding_16bit_amoeba ? EL_EMPTY :
+ level->amoeba_content));
+ putFile8Bit(file, (level->double_speed ? 1 : 0));
+ putFile8Bit(file, (level->initial_gravity ? 1 : 0));
+ putFile8Bit(file, (level->encoding_16bit_field ? 1 : 0));
+ putFile8Bit(file, (level->em_slippery_gems ? 1 : 0));
+
+ putFile8Bit(file, (level->use_custom_template ? 1 : 0));
+
+ WriteUnusedBytesToFile(file, LEVEL_HEADER_UNUSED);
+}
+
+static void SaveLevel_AUTH(FILE *file, struct LevelInfo *level)
+{
+ int i;
+
+ for (i = 0; i < MAX_LEVEL_AUTHOR_LEN; i++)
+ putFile8Bit(file, level->author[i]);
+}
+
+static void SaveLevel_BODY(FILE *file, struct LevelInfo *level)
+{
+ int x, y;
+
+ for (y = 0; y < level->fieldy; y++)
+ for (x = 0; x < level->fieldx; x++)
+ if (level->encoding_16bit_field)
+ putFile16BitBE(file, level->field[x][y]);
+ else
+ putFile8Bit(file, level->field[x][y]);
+}
+
+#if 0
+static void SaveLevel_CONT(FILE *file, struct LevelInfo *level)
+{
+ int i, x, y;
+
+ putFile8Bit(file, EL_YAMYAM);
+ putFile8Bit(file, level->num_yamyam_contents);
+ putFile8Bit(file, 0);
+ putFile8Bit(file, 0);
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ if (level->encoding_16bit_field)
+ putFile16BitBE(file, level->yamyam_content[i][x][y]);
+ else
+ putFile8Bit(file, level->yamyam_content[i][x][y]);
+}
+#endif
+
+static void SaveLevel_CNT2(FILE *file, struct LevelInfo *level, int element)
+{
+ int i, x, y;
+ int num_contents, content_xsize, content_ysize;
+ int content_array[MAX_ELEMENT_CONTENTS][3][3];
+
+ if (element == EL_YAMYAM)
+ {
+ num_contents = level->num_yamyam_contents;
+ content_xsize = 3;
+ content_ysize = 3;
+
+ 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] = level->yamyam_content[i][x][y];
+ }
+ else if (element == EL_BD_AMOEBA)
+ {
+ num_contents = 1;
+ content_xsize = 1;
+ content_ysize = 1;
+
+ 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] = EL_EMPTY;
+ content_array[0][0][0] = level->amoeba_content;
+ }
+ else
+ {
+ /* chunk header already written -- write empty chunk data */
+ WriteUnusedBytesToFile(file, LEVEL_CHUNK_CNT2_SIZE);
+
+ Error(ERR_WARN, "cannot save content for element '%d'", element);
+ return;
+ }
+
+ putFile16BitBE(file, element);
+ putFile8Bit(file, num_contents);
+ putFile8Bit(file, content_xsize);
+ putFile8Bit(file, content_ysize);
+
+ WriteUnusedBytesToFile(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++)
+ putFile16BitBE(file, content_array[i][x][y]);
+}
+
+static void SaveLevel_CNT3(FILE *file, struct LevelInfo *level, int element)
+{
+ int i;
+ int envelope_nr = element - EL_ENVELOPE_1;
+ int envelope_len = strlen(level->envelope_text[envelope_nr]) + 1;
+
+ putFile16BitBE(file, element);
+ putFile16BitBE(file, envelope_len);
+ putFile8Bit(file, level->envelope_xsize[envelope_nr]);
+ putFile8Bit(file, level->envelope_ysize[envelope_nr]);
+
+ WriteUnusedBytesToFile(file, LEVEL_CHUNK_CNT3_UNUSED);
+
+ for (i = 0; i < envelope_len; i++)
+ putFile8Bit(file, level->envelope_text[envelope_nr][i]);
+}
+
+#if 0
+static void SaveLevel_CUS1(FILE *file, struct LevelInfo *level,
+ int num_changed_custom_elements)
+{
+ int i, check = 0;
+
+ putFile16BitBE(file, num_changed_custom_elements);
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (Properties[element][EP_BITFIELD_BASE] != EP_BITMASK_DEFAULT)
+ {
+ if (check < num_changed_custom_elements)
+ {
+ putFile16BitBE(file, element);
+ putFile32BitBE(file, Properties[element][EP_BITFIELD_BASE]);
+ }
+
+ check++;
+ }
+ }
+
+ if (check != num_changed_custom_elements) /* should not happen */
+ Error(ERR_WARN, "inconsistent number of custom element properties");
+}
+#endif
+
+#if 0
+static void SaveLevel_CUS2(FILE *file, struct LevelInfo *level,
+ int num_changed_custom_elements)
+{
+ int i, check = 0;
+
+ putFile16BitBE(file, num_changed_custom_elements);
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (element_info[element].change->target_element != EL_EMPTY_SPACE)
+ {
+ if (check < num_changed_custom_elements)
+ {
+ putFile16BitBE(file, element);
+ putFile16BitBE(file, element_info[element].change->target_element);
+ }
+
+ check++;
+ }
+ }
+
+ if (check != num_changed_custom_elements) /* should not happen */
+ Error(ERR_WARN, "inconsistent number of custom target elements");
+}
+#endif
+
+#if 0
+static void SaveLevel_CUS3(FILE *file, struct LevelInfo *level,
+ int num_changed_custom_elements)
+{
+ int i, j, x, y, check = 0;
+
+ putFile16BitBE(file, num_changed_custom_elements);
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (element_info[element].modified_settings)
+ {
+ if (check < num_changed_custom_elements)
+ {
+ putFile16BitBE(file, element);
+
+ for (j = 0; j < MAX_ELEMENT_NAME_LEN; j++)
+ putFile8Bit(file, element_info[element].description[j]);
+
+ putFile32BitBE(file, Properties[element][EP_BITFIELD_BASE]);
+
+ /* some free bytes for future properties and padding */
+ WriteUnusedBytesToFile(file, 7);
+
+ putFile8Bit(file, element_info[element].use_gfx_element);
+ putFile16BitBE(file, element_info[element].gfx_element);
+
+ putFile8Bit(file, element_info[element].collect_score);
+ putFile8Bit(file, element_info[element].collect_count);
+
+ putFile16BitBE(file, element_info[element].push_delay_fixed);
+ putFile16BitBE(file, element_info[element].push_delay_random);
+ putFile16BitBE(file, element_info[element].move_delay_fixed);
+ putFile16BitBE(file, element_info[element].move_delay_random);
+
+ putFile16BitBE(file, element_info[element].move_pattern);
+ putFile8Bit(file, element_info[element].move_direction_initial);
+ putFile8Bit(file, element_info[element].move_stepsize);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, element_info[element].content[x][y]);
+
+ putFile32BitBE(file, element_info[element].change->events);
+
+ putFile16BitBE(file, element_info[element].change->target_element);
+
+ putFile16BitBE(file, element_info[element].change->delay_fixed);
+ putFile16BitBE(file, element_info[element].change->delay_random);
+ putFile16BitBE(file, element_info[element].change->delay_frames);
+
+ putFile16BitBE(file, element_info[element].change->trigger_element);
+
+ putFile8Bit(file, element_info[element].change->explode);
+ putFile8Bit(file, element_info[element].change->use_content);
+ putFile8Bit(file, element_info[element].change->only_complete);
+ putFile8Bit(file, element_info[element].change->use_random_change);
+
+ putFile8Bit(file, element_info[element].change->random);
+ putFile8Bit(file, element_info[element].change->power);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, element_info[element].change->content[x][y]);
+
+ putFile8Bit(file, element_info[element].slippery_type);
+
+ /* some free bytes for future properties and padding */
+ WriteUnusedBytesToFile(file, LEVEL_CPART_CUS3_UNUSED);
+ }
+
+ check++;
+ }
+ }
+
+ if (check != num_changed_custom_elements) /* should not happen */
+ Error(ERR_WARN, "inconsistent number of custom element properties");
+}
+#endif
+
+static void SaveLevel_CUS4(FILE *file, struct LevelInfo *level, int element)
+{
+ struct ElementInfo *ei = &element_info[element];
+ int i, x, y;
+
+ putFile16BitBE(file, element);
+
+ for (i = 0; i < MAX_ELEMENT_NAME_LEN; i++)
+ putFile8Bit(file, ei->description[i]);
+
+ putFile32BitBE(file, Properties[element][EP_BITFIELD_BASE]);
+ WriteUnusedBytesToFile(file, 4); /* reserved for more base properties */
+
+ putFile8Bit(file, ei->num_change_pages);
+
+ /* some free bytes for future base property values and padding */
+ WriteUnusedBytesToFile(file, 5);
+
+ /* write custom property values */
+
+ putFile8Bit(file, ei->use_gfx_element);
+ putFile16BitBE(file, ei->gfx_element);
+
+ putFile8Bit(file, ei->collect_score);
+ putFile8Bit(file, ei->collect_count);
+
+ putFile16BitBE(file, ei->push_delay_fixed);
+ putFile16BitBE(file, ei->push_delay_random);
+ putFile16BitBE(file, ei->move_delay_fixed);
+ putFile16BitBE(file, ei->move_delay_random);
+
+ putFile16BitBE(file, ei->move_pattern);
+ putFile8Bit(file, ei->move_direction_initial);
+ putFile8Bit(file, ei->move_stepsize);
+
+ putFile8Bit(file, ei->slippery_type);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, ei->content[x][y]);
+
+ /* some free bytes for future custom property values and padding */
+ WriteUnusedBytesToFile(file, 12);
+
+ /* write change property values */
+
+ for (i = 0; i < ei->num_change_pages; i++)
+ {
+ struct ElementChangeInfo *change = &ei->change_page[i];
+
+ putFile32BitBE(file, change->events);
+
+ putFile16BitBE(file, change->target_element);
+
+ putFile16BitBE(file, change->delay_fixed);
+ putFile16BitBE(file, change->delay_random);
+ putFile16BitBE(file, change->delay_frames);
+
+ putFile16BitBE(file, change->trigger_element);
+
+ putFile8Bit(file, change->explode);
+ putFile8Bit(file, change->use_content);
+ putFile8Bit(file, change->only_complete);
+ putFile8Bit(file, change->use_random_change);
+
+ putFile8Bit(file, change->random);
+ putFile8Bit(file, change->power);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, change->content[x][y]);
+
+ putFile8Bit(file, change->can_change);
+
+ putFile8Bit(file, change->sides);
+
+ /* some free bytes for future change property values and padding */
+ WriteUnusedBytesToFile(file, 8);
+ }
+}
+
+static void SaveLevelFromFilename(struct LevelInfo *level, char *filename)
+{
+ int body_chunk_size;
+ int i, x, y;
+ FILE *file;
+
+ if (!(file = fopen(filename, MODE_WRITE)))
+ {
+ Error(ERR_WARN, "cannot save level file '%s'", filename);
+ return;
+ }
+
+ level->file_version = FILE_VERSION_ACTUAL;
+ level->game_version = GAME_VERSION_ACTUAL;
+
+ /* check level field for 16-bit elements */
+ level->encoding_16bit_field = FALSE;
+ for (y = 0; y < level->fieldy; y++)
+ for (x = 0; x < level->fieldx; x++)
+ if (level->field[x][y] > 255)
+ level->encoding_16bit_field = TRUE;
+
+ /* check yamyam content for 16-bit elements */
+ level->encoding_16bit_yamyam = FALSE;
+ for (i = 0; i < level->num_yamyam_contents; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ if (level->yamyam_content[i][x][y] > 255)
+ level->encoding_16bit_yamyam = TRUE;
+
+ /* check amoeba content for 16-bit elements */
+ level->encoding_16bit_amoeba = FALSE;
+ if (level->amoeba_content > 255)
+ level->encoding_16bit_amoeba = TRUE;
+
+ /* calculate size of "BODY" chunk */
+ body_chunk_size =
+ level->fieldx * level->fieldy * (level->encoding_16bit_field ? 2 : 1);
+
+ putFileChunkBE(file, "RND1", CHUNK_SIZE_UNDEFINED);
+ putFileChunkBE(file, "CAVE", CHUNK_SIZE_NONE);
+
+ putFileChunkBE(file, "VERS", FILE_VERS_CHUNK_SIZE);
+ SaveLevel_VERS(file, level);
+
+ putFileChunkBE(file, "HEAD", LEVEL_HEADER_SIZE);
+ SaveLevel_HEAD(file, level);
+
+ putFileChunkBE(file, "AUTH", MAX_LEVEL_AUTHOR_LEN);
+ SaveLevel_AUTH(file, level);
+
+ putFileChunkBE(file, "BODY", body_chunk_size);
+ SaveLevel_BODY(file, level);
+
+ if (level->encoding_16bit_yamyam ||
+ level->num_yamyam_contents != STD_ELEMENT_CONTENTS)
+ {
+ putFileChunkBE(file, "CNT2", LEVEL_CHUNK_CNT2_SIZE);
+ SaveLevel_CNT2(file, level, EL_YAMYAM);
+ }
+
+ if (level->encoding_16bit_amoeba)
+ {
+ putFileChunkBE(file, "CNT2", LEVEL_CHUNK_CNT2_SIZE);
+ SaveLevel_CNT2(file, level, EL_BD_AMOEBA);
+ }
+
+ /* check for envelope content */
+ for (i = 0; i < 4; i++)
+ {
+ if (strlen(level->envelope_text[i]) > 0)
+ {
+ int envelope_len = strlen(level->envelope_text[i]) + 1;
+
+ putFileChunkBE(file, "CNT3", LEVEL_CHUNK_CNT3_HEADER + envelope_len);
+ SaveLevel_CNT3(file, level, EL_ENVELOPE_1 + i);
+ }
+ }
+
+ /* check for non-default custom elements (unless using template level) */
+ if (!level->use_custom_template)
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (element_info[element].modified_settings)
+ {
+ int num_change_pages = element_info[element].num_change_pages;
+
+ putFileChunkBE(file, "CUS4", LEVEL_CHUNK_CUS4_SIZE(num_change_pages));
+ SaveLevel_CUS4(file, level, element);
+ }
+ }
+ }
+
+ fclose(file);
+
+ SetFilePermissions(filename, PERMS_PRIVATE);
+}
+
+void SaveLevel(int level_nr)
+{
+ char *filename = getLevelFilename(level_nr);
+
+ SaveLevelFromFilename(&level, filename);
+}
+
+void SaveLevelTemplate()
+{
+ char *filename = getLevelFilename(-1);
+
+ SaveLevelFromFilename(&level, filename);
+}
+
+void DumpLevel(struct LevelInfo *level)
+{
+ printf_line("-", 79);
+ printf("Level xxx (file version %08d, game version %08d)\n",
+ level->file_version, level->game_version);
+ printf_line("-", 79);
+
+ printf("Level Author: '%s'\n", level->author);
+ printf("Level Title: '%s'\n", level->name);
+ printf("\n");
+ printf("Playfield Size: %d x %d\n", level->fieldx, level->fieldy);
+ printf("\n");
+ printf("Level Time: %d seconds\n", level->time);
+ printf("Gems needed: %d\n", level->gems_needed);
+ printf("\n");
+ printf("Time for Magic Wall: %d seconds\n", level->time_magic_wall);
+ printf("Time for Wheel: %d seconds\n", level->time_wheel);
+ printf("Time for Light: %d seconds\n", level->time_light);
+ printf("Time for Timegate: %d seconds\n", level->time_timegate);
+ printf("\n");
+ printf("Amoeba Speed: %d\n", level->amoeba_speed);
+ printf("\n");
+ printf("Gravity: %s\n", (level->initial_gravity ? "yes" : "no"));
+ printf("Double Speed Movement: %s\n", (level->double_speed ? "yes" : "no"));
+ printf("EM style slippery gems: %s\n", (level->em_slippery_gems ? "yes" : "no"));
+
+ printf_line("-", 79);
+}
+
+
+/* ========================================================================= */
+/* tape file functions */
+/* ========================================================================= */
+
+static void setTapeInfoToDefaults()
+{
+ int i;
+
+ /* always start with reliable default values (empty tape) */
+ TapeErase();
+
+ /* default values (also for pre-1.2 tapes) with only the first player */
+ tape.player_participates[0] = TRUE;
+ for (i = 1; i < MAX_PLAYERS; i++)
+ tape.player_participates[i] = FALSE;
+
+ /* at least one (default: the first) player participates in every tape */
+ tape.num_participating_players = 1;
+
+ tape.level_nr = level_nr;
+ tape.counter = 0;
+ tape.changed = FALSE;
+
+ tape.recording = FALSE;
+ tape.playing = FALSE;
+ tape.pausing = FALSE;
+}
+
+static int LoadTape_VERS(FILE *file, int chunk_size, struct TapeInfo *tape)
+{
+ tape->file_version = getFileVersion(file);
+ tape->game_version = getFileVersion(file);
+
+ return chunk_size;
+}
+
+static int LoadTape_HEAD(FILE *file, int chunk_size, struct TapeInfo *tape)
+{
+ int i;
+
+ tape->random_seed = getFile32BitBE(file);
+ tape->date = getFile32BitBE(file);
+ tape->length = getFile32BitBE(file);
+
+ /* read header fields that are new since version 1.2 */
+ if (tape->file_version >= FILE_VERSION_1_2)
+ {
+ byte store_participating_players = getFile8Bit(file);
+ int engine_version;
+
+ /* since version 1.2, tapes store which players participate in the tape */
+ tape->num_participating_players = 0;
+ for (i = 0; i < MAX_PLAYERS; i++)
+ {
+ tape->player_participates[i] = FALSE;
+
+ if (store_participating_players & (1 << i))
+ {
+ tape->player_participates[i] = TRUE;
+ tape->num_participating_players++;
+ }
+ }
+
+ ReadUnusedBytesFromFile(file, TAPE_HEADER_UNUSED);
+
+ engine_version = getFileVersion(file);
+ if (engine_version > 0)
+ tape->engine_version = engine_version;
+ else
+ tape->engine_version = tape->game_version;
+ }
+
+ return chunk_size;
+}
+
+static int LoadTape_INFO(FILE *file, int chunk_size, struct TapeInfo *tape)
+{
+ int level_identifier_size;
+ int i;
+
+ level_identifier_size = getFile16BitBE(file);
+
+ tape->level_identifier =
+ checked_realloc(tape->level_identifier, level_identifier_size);
+
+ for (i = 0; i < level_identifier_size; i++)
+ tape->level_identifier[i] = getFile8Bit(file);
+
+ tape->level_nr = getFile16BitBE(file);
+
+ chunk_size = 2 + level_identifier_size + 2;
+
+ return chunk_size;
+}
+
+static int LoadTape_BODY(FILE *file, int chunk_size, struct TapeInfo *tape)
+{
+ int i, j;
+ int chunk_size_expected =
+ (tape->num_participating_players + 1) * tape->length;
+
+ if (chunk_size_expected != chunk_size)
+ {
+ ReadUnusedBytesFromFile(file, chunk_size);
+ return chunk_size_expected;
+ }
+
+ for (i = 0; i < tape->length; i++)
+ {
+ if (i >= MAX_TAPELEN)
+ break;
+
+ for (j = 0; j < MAX_PLAYERS; j++)
+ {
+ tape->pos[i].action[j] = MV_NO_MOVING;
+
+ if (tape->player_participates[j])
+ tape->pos[i].action[j] = getFile8Bit(file);
+ }
+
+ tape->pos[i].delay = getFile8Bit(file);
+
+ if (tape->file_version == FILE_VERSION_1_0)
+ {
+ /* eliminate possible diagonal moves in old tapes */
+ /* this is only for backward compatibility */
+
+ byte joy_dir[4] = { JOY_LEFT, JOY_RIGHT, JOY_UP, JOY_DOWN };
+ byte action = tape->pos[i].action[0];
+ int k, num_moves = 0;
+
+ for (k = 0; k<4; k++)
+ {
+ if (action & joy_dir[k])
+ {
+ tape->pos[i + num_moves].action[0] = joy_dir[k];
+ if (num_moves > 0)
+ tape->pos[i + num_moves].delay = 0;
+ num_moves++;
+ }
+ }
+
+ if (num_moves > 1)
+ {
+ num_moves--;
+ i += num_moves;
+ tape->length += num_moves;
+ }
+ }
+ else if (tape->file_version < FILE_VERSION_2_0)
+ {
+ /* convert pre-2.0 tapes to new tape format */
+
+ if (tape->pos[i].delay > 1)
+ {
+ /* action part */
+ tape->pos[i + 1] = tape->pos[i];
+ tape->pos[i + 1].delay = 1;
+
+ /* delay part */
+ for (j = 0; j < MAX_PLAYERS; j++)
+ tape->pos[i].action[j] = MV_NO_MOVING;
+ tape->pos[i].delay--;
+
+ i++;
+ tape->length++;
+ }
+ }
+
+ if (feof(file))
+ break;
+ }
+
+ if (i != tape->length)
+ chunk_size = (tape->num_participating_players + 1) * i;
+
+ return chunk_size;
+}
+
+void LoadTapeFromFilename(char *filename)
+{
+ char cookie[MAX_LINE_LEN];
+ char chunk_name[CHUNK_ID_LEN + 1];
+ FILE *file;
+ int chunk_size;
+
+ /* always start with reliable default values */
+ setTapeInfoToDefaults();
+
+ if (!(file = fopen(filename, MODE_READ)))