+ 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]);
+}
+
+#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
+
+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 (Properties[element][EP_BITFIELD_BASE] != EP_BITMASK_DEFAULT)
+ {
+ 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].score);
+ putFile8Bit(file, element_info[element].gem_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");
+}
+
+static void SaveLevelFromFilename(struct LevelInfo *level, char *filename)
+{
+ int body_chunk_size;
+ int num_changed_custom_elements = 0;
+ int level_chunk_CUS3_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);
+
+ /* check for non-standard custom elements and calculate "CUS3" chunk size */
+ for (i=0; i < NUM_CUSTOM_ELEMENTS; i++)
+ if (Properties[EL_CUSTOM_START +i][EP_BITFIELD_BASE] != EP_BITMASK_DEFAULT)
+ num_changed_custom_elements++;
+ level_chunk_CUS3_size = LEVEL_CHUNK_CUS3_SIZE(num_changed_custom_elements);
+
+ 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);
+ }
+
+ if (num_changed_custom_elements > 0 && !level->use_custom_template)
+ {
+ putFileChunkBE(file, "CUS3", level_chunk_CUS3_size);
+ SaveLevel_CUS3(file, level, num_changed_custom_elements);
+ }
+
+ 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->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;
+ }
+
+ 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();