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import sys, struct, re
formats = {
'pane': '''
u8 flags_1 // 8
u8 flags_2 // 9
u8 alpha_1 // a
u8 alpha_2 // b
char name[0x18] // c
float x // 24
float y // 28
float z // 2c
float pane_unk1 // 30
float pane_unk2 // 34
float angle // 38
float xmag // 3c
float ymag // 40
float width // 44
float height // 48
etc!
''',
'text': '''
u16 unk1 // 4c
u16 unk2 // 4e
u16 mat_off // 50
u16 unk3 // 52
u8 unk4 // 54
u8 unk5[3] // 55
u32 name_offs // 58
u32 unk6 // 5c
u32 unk7 // 60
float unk8 // 64
float unk9 // 68
float unka // 6c
float unkb // 70
etc!
''',
'pic': '''
u32 unk1 // 4c
u32 unk2 // 50
u32 unk3 // 54
u32 unk4 // 58
u16 mat_off // 5c
u8 num_texcoords// 5e, should be < 8
u8 padding // 5f
etc!
''',
'group': '''
char name[16]
u16 numsubs
u16 unk
etc!
''',
'numoffs': '''
u16 num
u16 offs
etc!
''',
'lytheader': '''
u32 a
u32 b
u32 c
''',
}
for (dname, definition) in formats.items():
definition = re.sub(re.compile('//.*$', re.M), '', definition)
definition = definition.strip()
definition = re.sub('\n[\n ]+', '\n', definition)
df = [[j.strip() for j in i.strip().split()] for i in definition.split('\n')]
df = []
etc = etcn = False
for i in definition.split('\n'):
i = i.strip()
if i[:3] == 'etc':
etc = True
if i == 'etc!':
etcn = True
continue
typ, name = [j.strip() for j in i.split()]
m = re.match('^([^\[]+)\[([a-zA-Z0-9]+)\]$', name)
if m:
name = m.group(1)
size = eval(m.group(2))
df.append((typ, (name, size)))
else:
df.append((typ, name))
formats[dname] = df, etc, etcn
def pr_dict(data, start=''):
for a in sorted(data.keys()):
b = data[a]
print '%s%s: %s' % (start, str(a), hex(b) if type(b) in (int, long) else repr(b))
types = {
'u8': 'B',
'u16': 'H',
'u32': 'I',
'u64': 'Q',
's8': 'b',
's16': 'h',
's32': 'i',
's64': 'q',
'float': 'f',
'f32': 'f',
'double': 'd',
'f64': 'd',
'bool': 'c',
'char': 'c',
}
def parse_var(pos, typ, chunk):
if not types.has_key(typ):
raise Exception('What\'s a %s?' % typ)
fmt = '>' + types[typ]
size = struct.calcsize(fmt)
return (pos + size), struct.unpack(fmt, chunk[pos:pos + size])[0]
def nullterm(str_plus):
z = str_plus.find('\0')
if z != -1:
return str_plus[:z]
else:
return str_plus
def parse_data(chunk, definition, prefix=None, start=0):
df, etc, etcn = formats[definition]
#print df, repr(definition)
#print df
pos = start
ret = {}
for typ, name in df:
try:
name, size = name
except:
pos, var = parse_var(pos, typ, chunk)
else:
if typ == 'char':
var = chunk[pos:pos+size].rstrip(chr(0))
pos += size
else:
var = []
for n in xrange(size):
pos, varn = parse_var(pos, typ, chunk)
var.append(varn)
if ret.has_key(name):
try:
ret[name].append(var)
except AttributeError:
ret[name] = [ret[name], var]
else:
ret[name] = var
#print hex(pos)
if pos > len(chunk):
raise Exception('too much!')
if pos < len(chunk):
if etc and not etcn:
ret['etc'] = repr(chunk[pos:])
elif not etc:
raise Exception('Incomplete handling...')
if prefix is not None:
ret2 = {}
for (k, v) in ret.items():
ret2[prefix + '.' + k] = v
ret = ret2
return (ret, pos) if etcn else ret
def unparse_var(typ, var):
if not types.has_key(typ):
raise Exception('What\'s a %s?' % typ)
return struct.pack('>' + types[typ], var)
def unparse_data(vars, definition, prefix=None):
df, etc, etcn = formats[definition]
ret = ''
for typ, name in df:
size = None
try:
name, size = name
except:
pass
if prefix is not None:
name = re.sub('^' + re.quote(prefix) + '\.', '', name)
var = vars[name]
if size is None:
ret += unparse_var(typ, var)
else:
if typ == 'char':
ret += var.ljust(size, '\0')
else:
assert len(var) == size
for v in var:
ret += unparse_var(typ, v)
return ret
def iff_to_chunks(z):
pos = 0
chunks = []
while pos < len(z):
cc = z[pos:pos+4]
length, = struct.unpack('>I', z[pos+4:pos+8])
#print cc
#print hex(length)
data = z[pos+8:pos+length]
pos += length
chunks.append((cc, data))
return chunks
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