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import struct
class Settings(object):
class Banner(object):
def __init__(self, name):
self.name = name
self.sounds = []
def add_sound(self, delay, sound_id):
self.sounds.append((delay, sound_id))
def __init__(self):
self.banners = []
def add_banner(self, name):
b = self.Banner(name)
self.banners.append(b)
return b
def export(self):
header_size = 8
offset = header_size + (4 * len(self.banners))
banner_offsets = []
banner_data = []
for b in self.banners:
banner_offsets.append(offset)
b_header1 = 'xxxx' # will be replaced later
b_header2 = struct.pack('>I', len(b.sounds))
b_sounds = map(lambda x: struct.pack('>II', *x), b.sounds)
offset += 8 + (len(b_sounds) * 8)
b_data = [b_header1, b_header2]
b_data.extend(b_sounds)
banner_data.append(b_data)
# now build a string table
str_tab = []
for b, b_data in zip(self.banners, banner_data):
b_data[0] = struct.pack('>I', offset)
offset += len(b.name) + 1
str_tab.append(b.name)
str_tab.append('\0')
# whatever
file_pieces = [
'NWcs',
struct.pack('>I', len(self.banners))
]
file_pieces.extend(map(lambda x: struct.pack('>I', x), banner_offsets))
for b_data in banner_data:
file_pieces.extend(b_data)
file_pieces.extend(str_tab)
return ''.join(file_pieces)
s = Settings()
one = s.add_banner('beef')
one.add_sound(0, 200)
one.add_sound(5, 400)
one.add_sound(20, 600)
two = s.add_banner('cats')
two.add_sound(5, 20)
two.add_sound(10, 40)
data = s.export()
open('settings.bin', 'wb').write(data)
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