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import sys, struct, re
from ethyl import *
if len(sys.argv) != 2:
print 'Usage: python parse-brlan.py something.brlan'
sys.exit(1)
f = open(sys.argv[1], 'rb')
rlan = f.read()
f.close()
assert rlan[0:4] in ( 'RLAN', 'RLTP', 'RLMC', 'RLVC', 'RLPA', 'RLTS', 'RLVI')
assert rlan[4:8] == '\xfe\xff\x00\x08'
offs, nel = struct.unpack('>hh', rlan[0xc:0x10])
ch = iff_to_chunks(rlan[offs:])
assert len(ch) == nel
# Holy indirection
# rlan
# pai1
# timg
# anim
# anim body
# aent
# aent body
#
for typ, chunk in ch:
assert typ == 'pai1'
# 8, a, b, c, e, 10
framesize, \
flags, \
_, \
num_timgs, \
num_anims, \
anim_offset \
= struct.unpack('>hbbhhI', chunk[:0xc])
print 'Framesize: %d\nFlags: %x' % (framesize, flags)
for n in xrange(num_timgs):
pos = 0x10 + 4*n
offs = struct.unpack('>I', chunk[pos:pos+4])
print 'timg: %s' % nullterm(chunk[pos - 8:])
for n in xrange(num_anims):
pos = anim_offset - 8 + 4*n
offs = struct.unpack('>I', chunk[pos:pos+4])[0] - 8
name = chunk[offs:offs + 0x14].rstrip('\0')
num_aent_groups, is_material, aunk3, aunk4 = struct.unpack('>BBBB', chunk[offs + 0x14:offs + 0x18])
print 'name:%s num_aent_groups:%d is_material:%d aunk3:%d aunk4:%d' % (name, num_aent_groups, is_material, aunk3, aunk4)
for g in xrange(num_aent_groups):
q = offs + 0x18 + 4*g
aoffs, = struct.unpack('>I', chunk[q:q+4])
print name, hex(aoffs)
aoffs += offs
atyp = chunk[aoffs:aoffs+4]
#print hex(aoffs), hex(offs), name
num_aents = ord(chunk[aoffs + 4])
print atyp
for m in xrange(num_aents):
boffs = aoffs + 8 + 4*m
coffs, = struct.unpack('>I', chunk[boffs:boffs + 4])
coffs += aoffs
if atyp in ('RLMC', 'RLVC', 'RLPA', 'RLTP', 'RLIM', 'RLTS'): # doesn't cover RLVI
byte0, byte1, byte2, byte3, num_cookies, pad, cookies_offs = struct.unpack('>BBBBHHI', chunk[coffs:coffs+0xc])
#print 'cookies_offs: %x' % cookies_offs
print hex(byte0), hex(byte1), hex(byte2), hex(byte3), num_cookies
for o in xrange(num_cookies):
cookie_offs = coffs + cookies_offs + 0xc*o
coords = struct.unpack('>fff', chunk[cookie_offs:cookie_offs + 0xc])
print ' ', coords
print ' ', '---'
print '******'
#print repr(name)
#unk, anim_header_len = struct.unpack('>II', chunk[offs + 20:offs + 28])
#atyp = chunk[offs + 28:offs + 32]
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