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annotate pytouhou/formats/anm0.py @ 182:20843875ad8f

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(Hopefully) use difficulty as it should. The difficulty[0] (also called rank) varies from 0 to 32 and affects various parts of the game. The difficulty now impact those parts, but how it is modified during the gameplay is not clear. Such changes to the difficulty are not handled yet. [0] http://en.touhouwiki.net/wiki/Embodiment_of_Scarlet_Devil/Gameplay#Rank
author Thibaut Girka <thib@sitedethib.com>
date Tue, 25 Oct 2011 01:29:40 +0200
parents e7902309305c
children 88361534c77e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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14
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15 from struct import pack, unpack
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16 from pytouhou.utils.helpers import read_string, get_logger
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17
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18
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19 logger = get_logger(__name__)
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20
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21 #TODO: refactor/clean up
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22
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23
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24 class Animations(object):
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25 _instructions = {0: ('', 'delete'),
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26 1: ('I', 'set_sprite'),
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27 2: ('ff', 'set_scale'),
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28 3: ('I', 'set_alpha'),
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29 4: ('BBBx', 'set_color'),
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30 5: ('I', 'jump'),
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31 7: ('', 'toggle_mirrored'),
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32 9: ('fff', 'set_3d_rotations'),
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33 10: ('fff', 'set_3d_rotations_speed'),
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34 11: ('ff', 'set_scale_speed'),
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35 12: ('ii', 'fade'),
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36 13: ('', 'set_blendmode_add'),
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37 14: ('', 'set_blendmode_alphablend'),
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38 15: ('', 'keep_still'),
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39 16: ('ii', 'set_random_sprite'),
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40 17: ('fff', 'set_3d_translation'),
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41 18: ('fffi', 'move_to_linear'),
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42 19: ('fffi', 'move_to_decel'),
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43 20: ('fffi', 'move_to_accel'),
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44 21: ('', None),
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45 22: ('i', None),
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46 23: ('', 'set_corner_relative_placement'),
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47 24: ('', None),
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48 25: ('i', 'set_allow_offset'), #TODO: better name
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49 26: ('i', 'set_automatic_orientation'),
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50 27: ('f', 'shift_texture_x'),
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51 28: ('f', 'shift_texture_y'),
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52 30: ('ffi', 'scale_in'),
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53 31: ('i', None)}
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54
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55
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56 def __init__(self):
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57 self.size = (0, 0)
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58 self.first_name = None
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59 self.secondary_name = None
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60 self.sprites = {}
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61 self.scripts = {}
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62
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63
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64 @classmethod
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65 def read(cls, file):
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66 nb_sprites, nb_scripts, zero1 = unpack('<III', file.read(12))
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67 width, height, format, zero2 = unpack('<IIII', file.read(16))
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68 first_name_offset, unused, secondary_name_offset = unpack('<III', file.read(12))
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69 version, unknown1, thtxoffset, hasdata, nextoffset = unpack('<IIIII', file.read(20))
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70 if version != 0:
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71 raise Exception #TODO
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72 file.read(4) #TODO
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73
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74 sprite_offsets = [unpack('<I', file.read(4))[0] for i in range(nb_sprites)]
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75 script_offsets = [unpack('<II', file.read(8)) for i in range(nb_scripts)]
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76
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77 anm = Animations()
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78
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79 anm.size = (width, height)
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80
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81 # Names
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82 if first_name_offset:
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83 file.seek(first_name_offset)
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84 anm.first_name = read_string(file, 32, 'ascii') #TODO: 32, really?
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85 if secondary_name_offset:
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86 file.seek(secondary_name_offset)
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87 anm.secondary_name = read_string(file, 32, 'ascii') #TODO: 32, really?
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88
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89
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90 # Sprites
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91 file.seek(64)
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92 anm.sprites = {}
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93 for offset in sprite_offsets:
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94 file.seek(offset)
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95 idx, x, y, width, height = unpack('<Iffff', file.read(20))
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96 anm.sprites[idx] = x, y, width, height
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97
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98
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99 # Scripts
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100 anm.scripts = {}
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101 for i, offset in script_offsets:
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102 anm.scripts[i] = []
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103 instruction_offsets = []
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104 file.seek(offset)
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105 while True:
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106 #TODO
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107 instruction_offsets.append(file.tell() - offset)
111
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108 time, opcode, size = unpack('<HBB', file.read(4))
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109 data = file.read(size)
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110 if opcode in cls._instructions:
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111 args = unpack('<%s' % cls._instructions[opcode][0], data)
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112 else:
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113 args = (data,)
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114 logger.warn('unknown opcode %d', opcode)
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115
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116 anm.scripts[i].append((time, opcode, args))
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117 if opcode == 0:
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118 break
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119
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120 # Translate offsets to instruction pointers
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121 for instr_offset, (j, instr) in zip(instruction_offsets, enumerate(anm.scripts[i])):
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122 time, opcode, args = instr
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123 if opcode == 5:
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124 args = (instruction_offsets.index(args[0]),)
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125 anm.scripts[i][j] = time, opcode, args
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126 #TODO
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127
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128 return anm
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057cb96907e3 Add preliminay support for EoSD's ANM format
Thibaut Girka <thib@sitedethib.com>
parents:
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