X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Ffiles.c;h=3f50b5e9da42d312637589df1fd4dd84a5f8065c;hb=df8111be2dc97172f30c7162eca4641d027e2aa4;hp=22638f7652e2da0b94f2e67c9100d9c55d4ba038;hpb=e6107a527a13127f9bb2a4f501a7be84ec098473;p=rocksndiamonds.git diff --git a/src/files.c b/src/files.c index 22638f76..3f50b5e9 100644 --- a/src/files.c +++ b/src/files.c @@ -27,19 +27,15 @@ #define CHUNK_ID_LEN 4 /* IFF style chunk id length */ #define LEVEL_HEADER_SIZE 80 /* size of level file header */ #define LEVEL_HEADER_UNUSED 15 /* unused level header bytes */ +#define LEVEL_CHUNK_CNT2_SIZE 160 /* size of level CNT2 chunk */ +#define LEVEL_CHUNK_CNT2_UNUSED 11 /* unused CNT2 chunk bytes */ #define TAPE_HEADER_SIZE 20 /* size of tape file header */ #define TAPE_HEADER_UNUSED 7 /* unused tape header bytes */ -#if 0 -#define FILE_VERSION_1_0 10 /* 1.0 file version (old) */ -#define FILE_VERSION_1_2 12 /* 1.2 file version (still in use) */ -#define FILE_VERSION_1_4 14 /* 1.4 file version (new) */ -#endif - /* file identifier strings */ #define LEVEL_COOKIE "ROCKSNDIAMONDS_LEVEL_FILE_VERSION_2.0" #define SCORE_COOKIE "ROCKSNDIAMONDS_SCORE_FILE_VERSION_1.2" -#define TAPE_COOKIE "ROCKSNDIAMONDS_TAPE_FILE_VERSION_1.2" +#define TAPE_COOKIE "ROCKSNDIAMONDS_TAPE_FILE_VERSION_2.0" #define SETUP_COOKIE "ROCKSNDIAMONDS_SETUP_FILE_VERSION_1.2" #define LEVELSETUP_COOKIE "ROCKSNDIAMONDS_LEVELSETUP_FILE_VERSION_1.2" #define LEVELINFO_COOKIE "ROCKSNDIAMONDS_LEVELINFO_FILE_VERSION_1.2" @@ -48,6 +44,7 @@ #define LEVEL_COOKIE_12 "ROCKSNDIAMONDS_LEVEL_FILE_VERSION_1.2" #define LEVEL_COOKIE_14 "ROCKSNDIAMONDS_LEVEL_FILE_VERSION_1.4" #define TAPE_COOKIE_10 "ROCKSNDIAMONDS_LEVELREC_FILE_VERSION_1.0" +#define TAPE_COOKIE_12 "ROCKSNDIAMONDS_TAPE_FILE_VERSION_1.2" /* file names and filename extensions */ #if !defined(PLATFORM_MSDOS) @@ -413,7 +410,9 @@ static void setLevelInfoToDefaults() level.file_version = FILE_VERSION_ACTUAL; level.game_version = GAME_VERSION_ACTUAL; - level.encoding_16bit = FALSE; /* default: only 8-bit elements */ + level.encoding_16bit_field = FALSE; /* default: only 8-bit elements */ + level.encoding_16bit_yamyam = FALSE; /* default: only 8-bit elements */ + level.encoding_16bit_amoeba = FALSE; /* default: only 8-bit elements */ lev_fieldx = level.fieldx = STD_LEV_FIELDX; lev_fieldy = level.fieldy = STD_LEV_FIELDY; @@ -448,7 +447,8 @@ static void setLevelInfoToDefaults() for(i=0; i= FILE_VERSION_1_2) { - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); - if (strcmp(chunk, "HEAD") || chunk_length != LEVEL_HEADER_SIZE) + getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_BIG_ENDIAN); + if (strcmp(chunk_name, "HEAD") || chunk_size != LEVEL_HEADER_SIZE) { Error(ERR_WARN, "wrong 'HEAD' chunk of level file '%s'", filename); fclose(file); @@ -601,21 +601,21 @@ void OLD_LoadLevel(int level_nr) if (file_version >= FILE_VERSION_1_2) { - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); + getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_BIG_ENDIAN); /* look for optional author chunk */ - if (strcmp(chunk, "AUTH") == 0 && chunk_length == MAX_LEVEL_AUTHOR_LEN) + if (strcmp(chunk_name, "AUTH") == 0 && chunk_size == MAX_LEVEL_AUTHOR_LEN) { for(i=0; iscore[i] = fgetc(file); level->num_yam_contents = STD_ELEMENT_CONTENTS; - for(i=0; iyam_content[i][x][y] = checkLevelElement(fgetc(file)); - else - level->yam_content[i][x][y] = EL_LEERRAUM; - } - } - } + level->yam_content[i][x][y] = checkLevelElement(fgetc(file)); level->amoeba_speed = fgetc(file); level->time_magic_wall = fgetc(file); @@ -739,67 +737,143 @@ static void LoadLevel_HEAD(struct LevelInfo *level, FILE *file) level->double_speed = (fgetc(file) == 1 ? TRUE : FALSE); level->gravity = (fgetc(file) == 1 ? TRUE : FALSE); - level->encoding_16bit = (fgetc(file) == 1 ? TRUE : FALSE); + level->encoding_16bit_field = (fgetc(file) == 1 ? TRUE : FALSE); + + ReadUnusedBytesFromFile(file, LEVEL_HEADER_UNUSED); - SkipBytesInFile(file, LEVEL_HEADER_UNUSED); /* skip unused header bytes */ + return chunk_size; } -static void LoadLevel_AUTH(struct LevelInfo *level, FILE *file) +static int LoadLevel_AUTH(struct LevelInfo *level, FILE *file, int chunk_size) { int i; for(i=0; iauthor[i] = fgetc(file); level->author[MAX_LEVEL_NAME_LEN] = 0; + + return chunk_size; } -static void LoadLevel_CONT(struct LevelInfo *level, FILE *file) +static int LoadLevel_CONT(struct LevelInfo *level, FILE *file, int chunk_size) { 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; + } fgetc(file); level->num_yam_contents = fgetc(file); fgetc(file); fgetc(file); + /* correct invalid number of content fields -- should never happen */ if (level->num_yam_contents < 1 || level->num_yam_contents > MAX_ELEMENT_CONTENTS) - { -#if DEBUG - printf("WARNING: num_yam_contents == %d (corrected)\n", - level->num_yam_contents); -#endif level->num_yam_contents = STD_ELEMENT_CONTENTS; - } for(i=0; iyam_content[i][x][y] = - checkLevelElement(level->encoding_16bit ? - getFile16BitInteger(file, - BYTE_ORDER_BIG_ENDIAN) : + checkLevelElement(level->encoding_16bit_field ? + getFile16BitInteger(file, BYTE_ORDER_BIG_ENDIAN) : fgetc(file)); + return chunk_size; } -static void LoadLevel_BODY(struct LevelInfo *level, FILE *file) +static int LoadLevel_BODY(struct LevelInfo *level, FILE *file, int chunk_size) { 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; yfieldy; y++) for(x=0; xfieldx; x++) Feld[x][y] = Ur[x][y] = - checkLevelElement(level->encoding_16bit ? + checkLevelElement(level->encoding_16bit_field ? getFile16BitInteger(file, BYTE_ORDER_BIG_ENDIAN) : fgetc(file)); + return chunk_size; +} + +static int LoadLevel_CNT2(struct LevelInfo *level, FILE *file, int chunk_size) +{ + int i, x, y; + int element; + int num_contents, content_xsize, content_ysize; + int content_array[MAX_ELEMENT_CONTENTS][3][3]; + + element = checkLevelElement(getFile16BitInteger(file,BYTE_ORDER_BIG_ENDIAN)); + num_contents = fgetc(file); + content_xsize = fgetc(file); + content_ysize = fgetc(file); + ReadUnusedBytesFromFile(file, LEVEL_CHUNK_CNT2_UNUSED); + + for(i=0; i MAX_ELEMENT_CONTENTS) + num_contents = STD_ELEMENT_CONTENTS; + + if (element == EL_MAMPFER) + { + level->num_yam_contents = num_contents; + + for(i=0; iyam_content[i][x][y] = content_array[i][x][y]; + } + else if (element == EL_AMOEBE_BD) + { + level->amoeba_content = content_array[0][0][0]; + } + else + { + Error(ERR_WARN, "cannot load content for element '%d'", element); + } + + return chunk_size; } void LoadLevel(int level_nr) { char *filename = getLevelFilename(level_nr); char cookie[MAX_LINE_LEN]; - char chunk[CHUNK_ID_LEN + 1]; - int chunk_length; + char chunk_name[CHUNK_ID_LEN + 1]; + int chunk_size; FILE *file; /* always start with reliable default values */ @@ -833,101 +907,64 @@ void LoadLevel(int level_nr) if (level.file_version < FILE_VERSION_1_2) { /* level files from versions before 1.2.0 without chunk structure */ - LoadLevel_HEAD(&level, file); - LoadLevel_BODY(&level, file); + LoadLevel_HEAD(&level, file, LEVEL_HEADER_SIZE); + LoadLevel_BODY(&level, file, level.fieldx * level.fieldy); } else { static struct { - char *chunk_name; - void (*chunk_loader)(struct LevelInfo *, FILE *); - int chunk_length; + char *name; + int size; + int (*loader)(struct LevelInfo *, FILE *, int); } chunk_info[] = { - { "HEAD", LoadLevel_HEAD, LEVEL_HEADER_SIZE }, - { "AUTH", LoadLevel_AUTH, MAX_LEVEL_AUTHOR_LEN }, - { "CONT", LoadLevel_CONT, 4 + MAX_ELEMENT_CONTENTS * 3 * 3 }, - { "BODY", LoadLevel_BODY, 0 }, /* depends on contents of "HEAD" */ - { NULL, NULL, 0 } + { "HEAD", LEVEL_HEADER_SIZE, LoadLevel_HEAD }, + { "AUTH", MAX_LEVEL_AUTHOR_LEN, LoadLevel_AUTH }, + { "CONT", -1, LoadLevel_CONT }, + { "BODY", -1, LoadLevel_BODY }, + { "CNT2", LEVEL_CHUNK_CNT2_SIZE, LoadLevel_CNT2 }, + { NULL, 0, NULL } }; - while (getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN)) + while (getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_BIG_ENDIAN)) { int i = 0; - while (chunk_info[i].chunk_name != NULL && - strcmp(chunk, chunk_info[i].chunk_name) != 0) + while (chunk_info[i].name != NULL && + strcmp(chunk_name, chunk_info[i].name) != 0) i++; - if (chunk_info[i].chunk_name == NULL) + if (chunk_info[i].name == NULL) { Error(ERR_WARN, "unknown chunk '%s' in level file '%s'", - chunk, filename); - SkipBytesInFile(file, chunk_length); + chunk_name, filename); + ReadUnusedBytesFromFile(file, chunk_size); } - else if (chunk_length != chunk_info[i].chunk_length) + 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_length, chunk, filename); - SkipBytesInFile(file, chunk_length); + chunk_size, chunk_name, filename); + ReadUnusedBytesFromFile(file, chunk_size); } else { /* call function to load this level chunk */ - (chunk_info[i].chunk_loader)(&level, file); + int chunk_size_expected = + (chunk_info[i].loader)(&level, file, chunk_size); - if (strcmp(chunk, "HEAD") == 0) + /* 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) { - /* Note: "chunk_length" for CONT and BODY is wrong when elements are - stored with 16-bit encoding (and should be twice as big then). */ - - chunk_info[3].chunk_length = level.fieldx * level.fieldy; + Error(ERR_WARN, "wrong size (%d) of chunk '%s' in level file '%s'", + chunk_size, chunk_name, filename); } } } - -#if 0 - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); - if (strcmp(chunk, "HEAD") || chunk_length != LEVEL_HEADER_SIZE) - { - Error(ERR_WARN, "wrong 'HEAD' chunk of level file '%s'", filename); - fclose(file); - return; - } - - LoadLevel_HEAD(&level, file); - - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); - - /* look for optional author chunk */ - if (strcmp(chunk, "AUTH") == 0 && chunk_length == MAX_LEVEL_AUTHOR_LEN) - { - LoadLevel_AUTH(&level, file); - - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); - } - - /* look for optional content chunk */ - if (strcmp(chunk, "CONT") == 0 && - chunk_length == 4 + MAX_ELEMENT_CONTENTS * 3 * 3) - { - LoadLevel_CONT(&level, file); - - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); - } - - /* next check body chunk identifier and chunk length */ - if (strcmp(chunk, "BODY") != 0 || chunk_length != lev_fieldx * lev_fieldy) - { - Error(ERR_WARN, "wrong 'BODY' chunk of level file '%s'", filename); - fclose(file); - return; - } - - LoadLevel_BODY(&level, file); -#endif } fclose(file); @@ -958,7 +995,7 @@ void LoadLevel(int level_nr) SetBorderElement(); } -void SaveLevel(int level_nr) +void OLD_SaveLevel(int level_nr) { int i, x, y; char *filename = getLevelFilename(level_nr); @@ -1058,16 +1095,243 @@ void SaveLevel(int level_nr) chmod(filename, LEVEL_PERMS); } -void LoadTape(int level_nr) +static void SaveLevel_HEAD(struct LevelInfo *level, FILE *file) +{ + int i, x, y; + + fputc(level->fieldx, file); + fputc(level->fieldy, file); + + putFile16BitInteger(file, level->time, BYTE_ORDER_BIG_ENDIAN); + putFile16BitInteger(file, level->gems_needed, BYTE_ORDER_BIG_ENDIAN); + + for(i=0; iname[i], file); + + for(i=0; iscore[i], file); + + for(i=0; iencoding_16bit_yamyam ? EL_LEERRAUM : + level->yam_content[i][x][y]), + file); + fputc(level->amoeba_speed, file); + fputc(level->time_magic_wall, file); + fputc(level->time_wheel, file); + fputc((level->encoding_16bit_amoeba ? EL_LEERRAUM : level->amoeba_content), + file); + fputc((level->double_speed ? 1 : 0), file); + fputc((level->gravity ? 1 : 0), file); + + fputc((level->encoding_16bit_field ? 1 : 0), file); + + WriteUnusedBytesToFile(file, LEVEL_HEADER_UNUSED); +} + +static void SaveLevel_AUTH(struct LevelInfo *level, FILE *file) +{ + int i; + + for(i=0; iauthor[i], file); +} + +#if 0 +static void SaveLevel_CONT(struct LevelInfo *level, FILE *file) +{ + int i, x, y; + + fputc(EL_MAMPFER, file); + fputc(level->num_yam_contents, file); + fputc(0, file); + fputc(0, file); + + for(i=0; iencoding_16bit_field) + putFile16BitInteger(file, level->yam_content[i][x][y], + BYTE_ORDER_BIG_ENDIAN); + else + fputc(level->yam_content[i][x][y], file); +} +#endif + +static void SaveLevel_BODY(struct LevelInfo *level, FILE *file) +{ + int x, y; + + for(y=0; yencoding_16bit_field) + putFile16BitInteger(file, Ur[x][y], BYTE_ORDER_BIG_ENDIAN); + else + fputc(Ur[x][y], file); +} + +static void SaveLevel_CNT2(struct LevelInfo *level, FILE *file, int element) +{ + int i, x, y; + int num_contents, content_xsize, content_ysize; + int content_array[MAX_ELEMENT_CONTENTS][3][3]; + + if (element == EL_MAMPFER) + { + num_contents = level->num_yam_contents; + content_xsize = 3; + content_ysize = 3; + + for(i=0; iyam_content[i][x][y]; + } + else if (element == EL_AMOEBE_BD) + { + num_contents = 1; + content_xsize = 1; + content_ysize = 1; + + for(i=0; iamoeba_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; + } + + putFile16BitInteger(file, element, BYTE_ORDER_BIG_ENDIAN); + fputc(num_contents, file); + fputc(content_xsize, file); + fputc(content_ysize, file); + + WriteUnusedBytesToFile(file, LEVEL_CHUNK_CNT2_UNUSED); + + for(i=0; i 255) + level.encoding_16bit_field = TRUE; + + /* check yamyam content for 16-bit elements */ + for(i=0; i 255) + level.encoding_16bit_yamyam = TRUE; + + /* check amoeba content for 16-bit elements */ + if (level.amoeba_content > 255) + level.encoding_16bit_amoeba = TRUE; + + body_chunk_size = + level.fieldx * level.fieldy * (level.encoding_16bit_field ? 2 : 1); + + fputs(LEVEL_COOKIE, file); /* file identifier */ + fputc('\n', file); + + putFileChunk(file, "HEAD", LEVEL_HEADER_SIZE, BYTE_ORDER_BIG_ENDIAN); + SaveLevel_HEAD(&level, file); + + putFileChunk(file, "AUTH", MAX_LEVEL_AUTHOR_LEN, BYTE_ORDER_BIG_ENDIAN); + SaveLevel_AUTH(&level, file); + +#if 0 + if (level.encoding_16bit_field) /* obsolete since new "CNT2" chunk */ + { + chunk_size = 4 + 2 * (MAX_ELEMENT_CONTENTS * 3 * 3); + + putFileChunk(file, "CONT", chunk_size, BYTE_ORDER_BIG_ENDIAN); + SaveLevel_CONT(&level, file); + } +#endif + + putFileChunk(file, "BODY", body_chunk_size, BYTE_ORDER_BIG_ENDIAN); + SaveLevel_BODY(&level, file); + + if (level.encoding_16bit_yamyam || + level.num_yam_contents != STD_ELEMENT_CONTENTS) + { + putFileChunk(file, "CNT2", LEVEL_CHUNK_CNT2_SIZE, BYTE_ORDER_BIG_ENDIAN); + SaveLevel_CNT2(&level, file, EL_MAMPFER); + } + + if (level.encoding_16bit_amoeba) + { + putFileChunk(file, "CNT2", LEVEL_CHUNK_CNT2_SIZE, BYTE_ORDER_BIG_ENDIAN); + SaveLevel_CNT2(&level, file, EL_AMOEBE_BD); + } + + fclose(file); + + chmod(filename, LEVEL_PERMS); +} + +static void setTapeInfoToDefaults() +{ + int i; + + /* always start with reliable default values (empty tape) */ + tape.file_version = FILE_VERSION_ACTUAL; + tape.game_version = GAME_VERSION_ACTUAL; + TapeErase(); + + /* default values (also for pre-1.2 tapes) with only the first player */ + tape.player_participates[0] = TRUE; + for(i=1; i= FILE_VERSION_1_2) { - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); - if (strcmp(chunk, "HEAD") || chunk_length != TAPE_HEADER_SIZE) + getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_BIG_ENDIAN); + if (strcmp(chunk_name, "HEAD") || chunk_size != TAPE_HEADER_SIZE) { Error(ERR_WARN, "wrong 'HEAD' chunk of tape file '%s'", filename); fclose(file); @@ -1162,9 +1426,9 @@ void LoadTape(int level_nr) /* read chunk "BODY" */ if (file_version >= FILE_VERSION_1_2) { - getFileChunk(file, chunk, &chunk_length, BYTE_ORDER_BIG_ENDIAN); - if (strcmp(chunk, "BODY") || - chunk_length != (num_participating_players + 1) * tape.length) + getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_BIG_ENDIAN); + if (strcmp(chunk_name, "BODY") || + chunk_size != (num_participating_players + 1) * tape.length) { Error(ERR_WARN, "wrong 'BODY' chunk of tape file '%s'", filename); fclose(file); @@ -1172,6 +1436,10 @@ void LoadTape(int level_nr) } } +#if DEBUG + printf("\nTAPE OF LEVEL %d\n", level_nr); +#endif + for(i=0; i= MAX_TAPELEN) @@ -1183,10 +1451,30 @@ void LoadTape(int level_nr) if (tape.player_participates[j]) tape.pos[i].action[j] = fgetc(file); + +#if DEBUG + { + int x = tape.pos[i].action[j]; + + printf("%d:%02x ", j, x); + printf("[%c%c%c%c|%c%c] - ", + (x & JOY_LEFT ? '<' : ' '), + (x & JOY_RIGHT ? '>' : ' '), + (x & JOY_UP ? '^' : ' '), + (x & JOY_DOWN ? 'v' : ' '), + (x & JOY_BUTTON_1 ? '1' : ' '), + (x & JOY_BUTTON_2 ? '2' : ' ')); + } +#endif + } tape.pos[i].delay = fgetc(file); +#if DEBUG + printf("[%03d]\n", tape.pos[i].delay); +#endif + if (file_version == FILE_VERSION_1_0) { /* eliminate possible diagonal moves in old tapes */ @@ -1214,6 +1502,23 @@ void LoadTape(int level_nr) tape.length += num_moves; } } + else if (file_version < FILE_VERSION_2_0) + { + 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; jrandom_seed = getFile32BitInteger(file, BYTE_ORDER_BIG_ENDIAN); + tape->date = getFile32BitInteger(file, BYTE_ORDER_BIG_ENDIAN); + tape->length = getFile32BitInteger(file, BYTE_ORDER_BIG_ENDIAN); + + /* read header fields that are new since version 1.2 */ + if (tape->file_version >= FILE_VERSION_1_2) + { + byte store_participating_players = fgetc(file); + + ReadUnusedBytesFromFile(file, TAPE_HEADER_UNUSED); + + /* since version 1.2, tapes store which players participate in the tape */ + tape->num_participating_players = 0; + for(i=0; iplayer_participates[i] = FALSE; + + if (store_participating_players & (1 << i)) + { + tape->player_participates[i] = TRUE; + tape->num_participating_players++; + } + } + } + + return chunk_size; +} + +static int LoadTape_BODY(struct TapeInfo *tape, FILE *file, int chunk_size) +{ + 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; ilength; i++) + { + if (i >= MAX_TAPELEN) + break; + + for(j=0; jpos[i].action[j] = MV_NO_MOVING; + + if (tape->player_participates[j]) + tape->pos[i].action[j] = fgetc(file); + } + + tape->pos[i].delay = fgetc(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) + { + 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; jpos[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 LoadTape(int level_nr) +{ + char *filename = getTapeFilename(level_nr); + 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))) + return; + + /* check file identifier */ + fgets(cookie, MAX_LINE_LEN, file); + if (strlen(cookie) > 0 && cookie[strlen(cookie) - 1] == '\n') + cookie[strlen(cookie) - 1] = '\0'; + + if (!checkCookieString(cookie, TAPE_COOKIE)) /* unknown file format */ + { + Error(ERR_WARN, "unknown format of tape file '%s'", filename); + fclose(file); + return; + } + + if ((tape.file_version = getFileVersionFromCookieString(cookie)) == -1) + { + Error(ERR_WARN, "unsupported version of tape file '%s'", filename); + fclose(file); + return; + } + + tape.game_version = tape.file_version; + + if (tape.file_version < FILE_VERSION_1_2) + { + /* tape files from versions before 1.2.0 without chunk structure */ + LoadTape_HEAD(&tape, file, TAPE_HEADER_SIZE); + LoadTape_BODY(&tape, file, 2 * tape.length); + } + else + { + static struct + { + char *name; + int size; + int (*loader)(struct TapeInfo *, FILE *, int); + } + chunk_info[] = + { + { "HEAD", TAPE_HEADER_SIZE, LoadTape_HEAD }, + { "BODY", -1, LoadTape_BODY }, + { NULL, 0, NULL } + }; + + while (getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_BIG_ENDIAN)) + { + 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 tape 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 tape file '%s'", + chunk_size, chunk_name, filename); + ReadUnusedBytesFromFile(file, chunk_size); + } + else + { + /* call function to load this tape chunk */ + int chunk_size_expected = + (chunk_info[i].loader)(&tape, file, chunk_size); + + /* 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 tape file '%s'", + chunk_size, chunk_name, filename); + } + } + } + } + + fclose(file); + + tape.length_seconds = GetTapeLength(); +} + +void OLD_SaveTape(int level_nr) { int i; char *filename = getTapeFilename(level_nr); @@ -1302,6 +1821,133 @@ void SaveTape(int level_nr) Request("tape saved !", REQ_CONFIRM); } +static void SaveTape_HEAD(struct TapeInfo *tape, FILE *file) +{ + int i; + byte store_participating_players = 0; + + /* set bits for participating players for compact storage */ + for(i=0; iplayer_participates[i]) + store_participating_players |= (1 << i); + + putFile32BitInteger(file, tape->random_seed, BYTE_ORDER_BIG_ENDIAN); + putFile32BitInteger(file, tape->date, BYTE_ORDER_BIG_ENDIAN); + putFile32BitInteger(file, tape->length, BYTE_ORDER_BIG_ENDIAN); + + fputc(store_participating_players, file); + + WriteUnusedBytesToFile(file, TAPE_HEADER_UNUSED); +} + +static void SaveTape_BODY(struct TapeInfo *tape, FILE *file) +{ + int i, j; + + for(i=0; ilength; i++) + { + for(j=0; jplayer_participates[j]) + fputc(tape->pos[i].action[j], file); + + fputc(tape->pos[i].delay, file); + } +} + +void SaveTape(int level_nr) +{ + int i; + char *filename = getTapeFilename(level_nr); + FILE *file; + boolean new_tape = TRUE; + int num_participating_players = 0; + int body_chunk_size; + + InitTapeDirectory(leveldir_current->filename); + + /* if a tape still exists, ask to overwrite it */ + if (access(filename, F_OK) == 0) + { + new_tape = FALSE; + if (!Request("Replace old tape ?", REQ_ASK)) + return; + } + + if (!(file = fopen(filename, MODE_WRITE))) + { + Error(ERR_WARN, "cannot save level recording file '%s'", filename); + return; + } + + /* count number of participating players */ + for(i=0; ilevel_nr); + return; + } + + printf("\n"); + printf("-------------------------------------------------------------------------------\n"); + printf("TAPE OF LEVEL %d\n", tape->level_nr); + printf("-------------------------------------------------------------------------------\n"); + + for(i=0; ilength; i++) + { + if (i >= MAX_TAPELEN) + break; + + for(j=0; jplayer_participates[j]) + { + int action = tape->pos[i].action[j]; + + printf("%d:%02x ", j, action); + printf("[%c%c%c%c|%c%c] - ", + (action & JOY_LEFT ? '<' : ' '), + (action & JOY_RIGHT ? '>' : ' '), + (action & JOY_UP ? '^' : ' '), + (action & JOY_DOWN ? 'v' : ' '), + (action & JOY_BUTTON_1 ? '1' : ' '), + (action & JOY_BUTTON_2 ? '2' : ' ')); + } + } + + printf("(%03d)\n", tape->pos[i].delay); + } + + printf("-------------------------------------------------------------------------------\n"); +} + void LoadScore(int level_nr) { int i;