X-Git-Url: https://git.artsoft.org/?p=rocksndiamonds.git;a=blobdiff_plain;f=src%2Fgame_sp%2Ffile.c;h=a1ff3e80cc7769d03aa9e38c67a1dca064c936bf;hp=8467cbf03877ab770470259a6519c8841571e89c;hb=64e7c54dce6ea8c063f04198c64c5057d751c928;hpb=855700d73bbef8bb1248fe0ac735738478d6044b diff --git a/src/game_sp/file.c b/src/game_sp/file.c index 8467cbf0..a1ff3e80 100644 --- a/src/game_sp/file.c +++ b/src/game_sp/file.c @@ -3,9 +3,9 @@ #include "global.h" -/* ------------------------------------------------------------------------- */ -/* functions for loading Supaplex level */ -/* ------------------------------------------------------------------------- */ +// ---------------------------------------------------------------------------- +// functions for loading Supaplex level +// ---------------------------------------------------------------------------- static void setTapeInfoToDefaults_SP(void) { @@ -28,7 +28,7 @@ void setLevelInfoToDefaults_SP(void) for (y = 0; y < native_sp_level.height; y++) native_sp_level.playfield[x][y] = fiSpace; - /* copy string (without terminating '\0' character!) */ + // copy string (without terminating '\0' character!) for (i = 0; i < SP_LEVEL_NAME_LEN; i++) header->LevelTitle[i] = empty_title[i]; @@ -51,7 +51,7 @@ void setLevelInfoToDefaults_SP(void) port->FreezeEnemies = 0; } - /* set raw header bytes (used for subsequent buffer zone) to "hardware" */ + // set raw header bytes (used for subsequent buffer zone) to "hardware" for (i = 0; i < SP_HEADER_SIZE; i++) native_sp_level.header_raw_bytes[i] = 0x20; @@ -72,11 +72,11 @@ void copyInternalEngineVars_SP(void) FieldMax = (FieldWidth * FieldHeight) + HeaderSize - 1; LevelMax = (FieldWidth * FieldHeight) - 1; - /* initialize preceding playfield buffer */ + // initialize preceding playfield buffer for (i = -game_sp.preceding_buffer_size; i < 0; i++) PlayField16[i] = 0; - /* initialize preceding playfield buffer */ + // initialize preceding playfield buffer for (i = -SP_MAX_PLAYFIELD_WIDTH; i < 0; i++) PlayField8[i] = 0; @@ -84,7 +84,7 @@ void copyInternalEngineVars_SP(void) for (i = 0; game_sp.preceding_buffer[i] != NULL; i++) { char *s = game_sp.preceding_buffer[i]; - boolean hi_byte = FALSE; /* little endian data => start with low byte */ + boolean hi_byte = FALSE; // little endian data => start with low byte while (s[0] != '\0' && s[1] != '\0') { @@ -114,7 +114,7 @@ void copyInternalEngineVars_SP(void) for (x = 0; x < native_sp_level.width; x++) PlayField8[count++] = native_sp_level.playfield[x][y]; - /* add raw header bytes to subsequent playfield buffer zone */ + // add raw header bytes to subsequent playfield buffer zone for (i = 0; i < SP_HEADER_SIZE; i++) PlayField8[count++] = native_sp_level.header_raw_bytes[i]; @@ -133,7 +133,7 @@ void copyInternalEngineVars_SP(void) LevelLoaded = True; - /* random seed set by main game tape code to native random generator seed */ + // random seed set by main game tape code to native random generator seed } static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height, @@ -148,8 +148,8 @@ static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height, native_sp_level.width = MIN(width, SP_MAX_PLAYFIELD_WIDTH); native_sp_level.height = MIN(height, SP_MAX_PLAYFIELD_HEIGHT); - /* read level playfield (width * height == 60 * 24 tiles == 1440 bytes) */ - /* (MPX levels may have non-standard playfield size -- check max. size) */ + // read level playfield (width * height == 60 * 24 tiles == 1440 bytes) + // (MPX levels may have non-standard playfield size -- check max. size) for (y = 0; y < height; y++) { for (x = 0; x < width; x++) @@ -162,21 +162,21 @@ static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height, } } - /* read level header (96 bytes) */ + // read level header (96 bytes) - ReadUnusedBytesFromFile(file, 4); /* (not used by Supaplex engine) */ + ReadUnusedBytesFromFile(file, 4); // (not used by Supaplex engine) - /* initial gravity: 1 == "on", anything else (0) == "off" */ + // initial gravity: 1 == "on", anything else (0) == "off" header->InitialGravity = getFile8Bit(file); - /* SpeedFixVersion XOR 0x20 */ + // SpeedFixVersion XOR 0x20 header->Version = getFile8Bit(file); - /* level title in uppercase letters, padded with dashes ("-") (23 bytes) */ + // level title in uppercase letters, padded with dashes ("-") (23 bytes) for (i = 0; i < SP_LEVEL_NAME_LEN; i++) header->LevelTitle[i] = getFile8Bit(file); - /* initial "freeze zonks": 2 == "on", anything else (0, 1) == "off" */ + // initial "freeze zonks": 2 == "on", anything else (0, 1) == "off" header->InitialFreezeZonks = getFile8Bit(file); /* number of infotrons needed; 0 means that Supaplex will count the total @@ -184,10 +184,10 @@ static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height, (a multiple of 256 infotrons will result in "0 infotrons needed"!) */ header->InfotronsNeeded = getFile8Bit(file); - /* number of special ("gravity") port entries below (maximum 10 allowed) */ + // number of special ("gravity") port entries below (maximum 10 allowed) header->SpecialPortCount = getFile8Bit(file); - /* database of properties of up to 10 special ports (6 bytes per port) */ + // database of properties of up to 10 special ports (6 bytes per port) for (i = 0; i < SP_MAX_SPECIAL_PORTS; i++) { SpecialPortType *port = &header->SpecialPort[i]; @@ -197,30 +197,30 @@ static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height, 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->PortLocation = getFile16BitBE(file); /* yes, big endian */ + port->PortLocation = getFile16BitBE(file); // yes, big endian - /* change gravity: 1 == "turn on", anything else (0) == "turn off" */ + // change gravity: 1 == "turn on", anything else (0) == "turn off" port->Gravity = getFile8Bit(file); - /* "freeze zonks": 2 == "turn on", anything else (0, 1) == "turn off" */ + // "freeze zonks": 2 == "turn on", anything else (0, 1) == "turn off" port->FreezeZonks = getFile8Bit(file); - /* "freeze enemies": 1 == "turn on", anything else (0) == "turn off" */ + // "freeze enemies": 1 == "turn on", anything else (0) == "turn off" port->FreezeEnemies = getFile8Bit(file); - ReadUnusedBytesFromFile(file, 1); /* (not used by Supaplex engine) */ + ReadUnusedBytesFromFile(file, 1); // (not used by Supaplex engine) } - /* SpeedByte XOR Highbyte(RandomSeed) */ + // SpeedByte XOR Highbyte(RandomSeed) header->SpeedByte = getFile8Bit(file); - /* CheckSum XOR SpeedByte */ + // CheckSum XOR SpeedByte header->CheckSumByte = getFile8Bit(file); - /* random seed used for recorded demos */ - header->DemoRandomSeed = getFile16BitLE(file); /* yes, little endian */ + // random seed used for recorded demos + header->DemoRandomSeed = getFile16BitLE(file); // yes, little endian - /* auto-determine number of infotrons if it was stored as "0" -- see above */ + // auto-determine number of infotrons if it was stored as "0" -- see above if (header->InfotronsNeeded == 0) { for (x = 0; x < native_sp_level.width; x++) @@ -228,22 +228,22 @@ static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height, if (native_sp_level.playfield[x][y] == fiInfotron) header->InfotronsNeeded++; - header->InfotronsNeeded &= 0xff; /* only use low byte -- see above */ + header->InfotronsNeeded &= 0xff; // only use low byte -- see above } - /* read raw level header bytes (96 bytes) */ + // read raw level header bytes (96 bytes) - seekFile(file, -(SP_HEADER_SIZE), SEEK_CUR); /* rewind file */ + seekFile(file, -(SP_HEADER_SIZE), SEEK_CUR); // rewind file for (i = 0; i < SP_HEADER_SIZE; i++) native_sp_level.header_raw_bytes[i] = getByteFromFile(file); - /* also load demo tape, if available (only in single level files) */ + // also load demo tape, if available (only in single level files) if (demo_available) { int level_nr = getFile8Bit(file); - level_nr &= 0x7f; /* clear highest bit */ + level_nr &= 0x7f; // clear highest bit level_nr = (level_nr < 1 ? 1 : level_nr > 111 ? 111 : level_nr); @@ -253,7 +253,7 @@ static void LoadNativeLevelFromFileStream_SP(File *file, int width, int height, { native_sp_level.demo.data[i] = getFile8Bit(file); - if (native_sp_level.demo.data[i] == 0xff) /* "end of demo" byte */ + if (native_sp_level.demo.data[i] == 0xff) // "end of demo" byte break; } @@ -287,7 +287,7 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, int level_width = SP_STD_PLAYFIELD_WIDTH; int level_height = SP_STD_PLAYFIELD_HEIGHT; - /* always start with reliable default values */ + // always start with reliable default values setLevelInfoToDefaults_SP(); copyInternalEngineVars_SP(); @@ -352,7 +352,7 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, ldesc->Width = getFile16BitLE(file); ldesc->Height = getFile16BitLE(file); - ldesc->OffSet = getFile32BitLE(file); /* starts with 1, not with 0 */ + ldesc->OffSet = getFile32BitLE(file); // starts with 1, not with 0 ldesc->Size = getFile32BitLE(file); } @@ -362,7 +362,7 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, file_seek_pos = mpx_level_desc[level_pos].OffSet - 1; } - /* position file stream to the requested level (in case of level package) */ + // position file stream to the requested level (in case of level package) if (seekFile(file, file_seek_pos, SEEK_SET) != 0) { Error(ERR_WARN, "cannot fseek in file '%s' -- using empty level", filename); @@ -383,7 +383,7 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, LoadNativeLevelFromFileStream_SP(file, level_width, level_height, demo_available); - /* check if this level is a part of a bigger multi-part level */ + // check if this level is a part of a bigger multi-part level if (is_single_level_file) break; @@ -401,20 +401,20 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, if (is_multipart_level) { - /* correct leading multipart level meta information in level name */ + // correct leading multipart level meta information in level name for (i = 0; i < SP_LEVEL_NAME_LEN && header->LevelTitle[i] == name_first; i++) header->LevelTitle[i] = '-'; - /* correct trailing multipart level meta information in level name */ + // correct trailing multipart level meta information in level name for (i = SP_LEVEL_NAME_LEN - 1; i >= 0 && header->LevelTitle[i] == name_last; i--) header->LevelTitle[i] = '-'; } - /* ---------- check for normal single level ---------- */ + // ---------- check for normal single level ---------- if (!reading_multipart_level && !is_multipart_level) { @@ -424,7 +424,7 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, break; } - /* ---------- check for empty level (unused multi-part) ---------- */ + // ---------- check for empty level (unused multi-part) ---------- if (!reading_multipart_level && is_multipart_level && !is_first_part) { @@ -437,7 +437,7 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, break; } - /* ---------- check for finished multi-part level ---------- */ + // ---------- check for finished multi-part level ---------- if (reading_multipart_level && (!is_multipart_level || @@ -451,16 +451,16 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, break; } - /* ---------- here we have one part of a multi-part level ---------- */ + // ---------- 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 */ + if (is_first_part) // start with first part of new multi-part level { - /* copy level info structure from first part */ + // copy level info structure from first part multipart_level = native_sp_level; - /* clear playfield of new multi-part level */ + // clear playfield of new multi-part level for (x = 0; x < SP_MAX_PLAYFIELD_WIDTH; x++) for (y = 0; y < SP_MAX_PLAYFIELD_HEIGHT; y++) multipart_level.playfield[x][y] = fiSpace; @@ -487,7 +487,7 @@ boolean LoadNativeLevel_SP(char *filename, int level_pos, multipart_level.height = MAX(multipart_level.height, multipart_ypos * SP_STD_PLAYFIELD_HEIGHT); - /* copy level part at the right position of multi-part level */ + // copy level part at the right position of multi-part level for (x = 0; x < SP_STD_PLAYFIELD_WIDTH; x++) { for (y = 0; y < SP_STD_PLAYFIELD_HEIGHT; y++) @@ -531,12 +531,12 @@ void SaveNativeLevel_SP(char *filename) return; } - /* write level playfield (width * height == 60 * 24 tiles == 1440 bytes) */ + // write level playfield (width * height == 60 * 24 tiles == 1440 bytes) for (y = 0; y < native_sp_level.height; y++) for (x = 0; x < native_sp_level.width; x++) putFile8Bit(file, native_sp_level.playfield[x][y]); - /* write level header (96 bytes) */ + // write level header (96 bytes) WriteUnusedBytesToFile(file, 4); @@ -566,7 +566,7 @@ void SaveNativeLevel_SP(char *filename) putFile8Bit(file, header->CheckSumByte); putFile16BitLE(file, header->DemoRandomSeed); - /* also save demo tape, if available */ + // also save demo tape, if available if (native_sp_level.demo.is_available) { @@ -575,7 +575,7 @@ void SaveNativeLevel_SP(char *filename) for (i = 0; i < native_sp_level.demo.length; i++) putFile8Bit(file, native_sp_level.demo.data[i]); - putFile8Bit(file, 0xff); /* "end of demo" byte */ + putFile8Bit(file, 0xff); // "end of demo" byte } fclose(file);