# Hitman 2 rpkg archive unpacker script v1.0. (adapted from Hitman 2016 (script 0.2.5))
# 
# Unpacks Hitman 2's rpkg archives into a folder structure that reflects the type of
# the unpacked files. Files are named after their runtimeID. 
#
# Author: B3
# Original Author: Aluigi & the team at Zenhax
# script for QuickBMS http://quickbms.aluigi.org

comtype lz4

idstring "GKPR"
get FILES long
get INFO_OFF long
get INFO_SIZE long
get NAME basename

if NAME & "patch"
    get NUM long
    for x = 0 < NUM
        get DUMMY longlong
    next x
else
    get ZERO long
    if ZERO != 0
        goto -4 0 SEEK_CUR
    endif
endif

savepos TMP
math INFO_OFF + TMP
log MEMORY_FILE2 INFO_OFF INFO_SIZE

for i = 0 < FILES
    get HASH longlong
    get OFFSET longlong
    get ZSIZE long

    getdstring TYPE 4 MEMORY_FILE2
    get CHUNK_INFO_SIZE long MEMORY_FILE2
    get CHUNK_SIZE long MEMORY_FILE2
    get SIZE long MEMORY_FILE2
    get MEM_SIZE long MEMORY_FILE2
    get VIDEO_MEM_SIZE long MEMORY_FILE2
    savepos TMP MEMORY_FILE2
	
    if CHUNK_INFO_SIZE >= 4
		get CHUNKS long MEMORY_FILE2
		math CHUNKS & 0x3fffffff
		for x = 0 < CHUNKS
			get DUMMY long MEMORY_FILE2
			get DUMMY long MEMORY_FILE2
		next x
	endif
	
    math TMP + CHUNK_INFO_SIZE
    goto TMP MEMORY_FILE2

    string TYPE r TYPE
	string HASH P "%HASH|x%"
	string HASH << 2
    string NAME p "%s/%s.%s" TYPE HASH TYPE

    if ZSIZE & 0x80000000
        encryption xor "\xdc\x45\xa6\x9c\xd3\x72\x4c\xab"
    endif
    math ZSIZE & 0x3fffffff
	if ZSIZE != 0
		clog NAME OFFSET ZSIZE SIZE
	else 
		log NAME OFFSET SIZE
	endif
    encryption "" ""
next i