mas.bms

# ISI Gmotor engine MAS files (script 0.2a)
#  works universally with any game included:
#  ACTC, rFactor, ARCA, BMW M3, Sports Cart GT, NASCAR SimRacing/Thunder, F1 Challenge, SimRaceway and possibly others
# script for QuickBMS http://quickbms.aluigi.org

set MAS_TYPE0 binary "GMOTORMAS10\0\0\0\0\0"
set MAS_TYPE1 binary "\xC8\xCF\xD2\xD8\xCE\xD8\xE6\xC9\xCA\xDD\xD8\xBE\xBB\xA6\xBF\x90"
set MAS_TYPE3 binary "CUBEMAS4.10\0\0\0\0\0"
set SRW_TYPE  binary "SRW0000"
set FILES_SIZE long 256

getdstring SIGN 16
if SIGN == MAS_TYPE0
    set MAS_TYPE long 0
elif SIGN == MAS_TYPE1
    set MAS_TYPE long 1
    get DUMMY long
elif SIGN == MAS_TYPE3
    set MAS_TYPE long 3
else
    goto 0
    getdstring SIGN 7
    if SIGN == SRW_TYPE
        print "use my simraceway.bms script on this archive\nthen use mas.bms on the obtained decrypted output file"
        cleanexit
    endif

    goto 0
    getdstring SIGN 3
    if SIGN == "IFD"
        get MAS_TYPE long   # ??? (tested with 1 only)
        get DUMMY long
    else
        set MAS_TYPE long 2
        set FILES_SIZE long 0x20
        goto 0
    endif
endif
print "set MAS_TYPE %MAS_TYPE%"

get FILES long
get DATA_SIZE long
math ZSIZE = 0
if SIGN == "IFD"
    get ZSIZE long
endif

savepos OFFSET
math BASE_OFF = FILES
math BASE_OFF *= FILES_SIZE
if ZSIZE == 0
    log MEMORY_FILE OFFSET BASE_OFF
else
    clog MEMORY_FILE OFFSET ZSIZE BASE_OFF
    math BASE_OFF = ZSIZE
endif
math BASE_OFF += OFFSET

for i = 0 < FILES
    if MAS_TYPE == 0
        get DUMMY long MEMORY_FILE
        get OFFSET long MEMORY_FILE
        get SIZE long MEMORY_FILE
        get ZSIZE long MEMORY_FILE
        getdstring NAME 240 MEMORY_FILE
    elif MAS_TYPE == 1
        get DUMMY long MEMORY_FILE
        getdstring NAME 236 MEMORY_FILE
        get OFFSET long MEMORY_FILE
        get SIZE long MEMORY_FILE
        get ZSIZE long MEMORY_FILE
        get DUMMY long MEMORY_FILE
    elif MAS_TYPE == 2
        getdstring NAME 0x10 MEMORY_FILE
        get OFFSET long MEMORY_FILE
        get SIZE long MEMORY_FILE
        get ZSIZE long MEMORY_FILE
        get DUMMY long MEMORY_FILE
    elif MAS_TYPE == 3
        get DUMMY long MEMORY_FILE
        get OFFSET long MEMORY_FILE
        get SIZE long MEMORY_FILE
        get ZSIZE long MEMORY_FILE
        get DUMMY long MEMORY_FILE
        getdstring NAME 236 MEMORY_FILE
    endif

    math OFFSET += BASE_OFF
    if ZSIZE == 0
        math ZSIZE = SIZE
    endif
    if SIZE == ZSIZE
        log NAME OFFSET SIZE
    else
        clog NAME OFFSET ZSIZE SIZE
    endif
next i