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annotate pytouhou/formats/anm0.py @ 2:057cb96907e3

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Add preliminay support for EoSD's ANM format
author Thibaut Girka <thib@sitedethib.com>
date Mon, 01 Aug 2011 15:45:42 +0200
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children 66ce9bb440ac
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057cb96907e3 Add preliminay support for EoSD's ANM format
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1 from struct import pack, unpack
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2 from pytouhou.utils.helpers import read_string
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3
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4 #TODO: refactor/clean up
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5
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6
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7 class Animations(object):
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8 def __init__(self):
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9 self.size = (0, 0)
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10 self.first_name = None
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11 self.secondary_name = None
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12 self.sprites = {}
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13 self.scripts = {}
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15
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16 @classmethod
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17 def read(cls, file):
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18 nb_sprites, nb_scripts, zero1 = unpack('<III', file.read(12))
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19 width, height, format, zero2 = unpack('<IIII', file.read(16))
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20 first_name_offset, unused, secondary_name_offset = unpack('<III', file.read(12))
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21 version, unknown1, thtxoffset, hasdata, nextoffset = unpack('<IIIII', file.read(20))
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22 if version != 0:
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23 raise Exception #TODO
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24 file.read(4) #TODO
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25
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26 sprite_offsets = [unpack('<I', file.read(4))[0] for i in range(nb_sprites)]
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27 script_offsets = [unpack('<II', file.read(8)) for i in range(nb_scripts)]
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28
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29 anm = Animations()
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30
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31 anm.size = (width, height)
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32
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33 # Names
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34 if first_name_offset:
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35 file.seek(first_name_offset)
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36 anm.first_name = read_string(file, 32, 'ascii') #TODO: 32, really?
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37 if secondary_name_offset:
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38 file.seek(secondary_name_offset)
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39 anm.secondary_name = read_string(file, 32, 'ascii') #TODO: 32, really?
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41
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42 # Sprites
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43 file.seek(64)
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44 anm.sprites = {}
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45 for offset in sprite_offsets:
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46 file.seek(offset)
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47 idx, x, y, width, height = unpack('<Iffff', file.read(20))
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48 anm.sprites[idx] = x, y, width, height
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49
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50
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51 # Scripts
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52 anm.scripts = {}#[None] * nb_scripts
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53 for i, offset in script_offsets:
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54 anm.scripts[i] = []
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55 file.seek(offset)
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56 while True:
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57 #TODO
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58 time, instr_type, length = unpack('<HBB', file.read(4))
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59 if instr_type == 0:
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60 break
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61 data = file.read(length)
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62 anm.scripts[i].append((time, instr_type, data))
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63 #TODO
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64
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66 return anm