"""ANM0 files handling.
This module provides classes for handling the ANM0 file format.
The ANM0 format is a format used in Touhou 6: EoSD to describe sprites
and animations.
Almost everything rendered in the game is described by an ANM0 file.
"""
from struct import pack, unpack
from pytouhou.utils.helpers import read_string, get_logger
from pytouhou.formats import WrongFormatError
from pytouhou.formats.animation import Animation
from pytouhou.formats.thtx import Texture
logger = get_logger(__name__)
#TODO: refactor/clean up
class Script(list):
def __init__(self):
list.__init__(self)
self.interrupts = {}
class ANM0(Animation):
_instructions = {
0: {
0: ('', 'delete'),
1: ('I', 'set_sprite'),
## it under the terms of the GNU General Public License as published
## by the Free Software Foundation; version 3 only.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
from random import randrange, random
from pytouhou.utils.helpers import get_logger
from pytouhou.vm.common import MetaRegistry, instruction
logger = get_logger(__name__)
class ANMRunner(metaclass=MetaRegistry):
__slots__ = ('_anm', '_sprite', 'running', 'sprite_index_offset', 'script',
'instruction_pointer', 'frame', 'waiting', 'handlers',
'variables', 'version', 'timeout')
#TODO: check!
formulae = {0: None,
1: lambda x: x ** 2,
2: lambda x: x ** 3,
3: lambda x: x ** 4,
4: lambda x: 2 * x - x ** 2,
5: lambda x: 2 * x - x ** 3,
6: lambda x: 2 * x - x ** 4,