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annotate pytouhou/game/sprite.py @ 64:d469012368b3

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Implement conditional jumps.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 24 Aug 2011 22:44:40 -0700
parents 0886994029e4
children a142e57218a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
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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
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16 from random import randrange
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17 from struct import unpack
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18
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19 from pytouhou.utils.matrix import Matrix
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20 from pytouhou.utils.helpers import get_logger
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21
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22 logger = get_logger(__name__)
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24
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25 class AnmWrapper(object):
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26 def __init__(self, anm_files):
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27 self.anm_files = list(anm_files)
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28
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29 def get_sprite(self, script_index):
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30 for anm in self.anm_files:
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31 if script_index in anm.scripts:
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32 return anm, Sprite(anm, script_index)
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33
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35
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36 class Sprite(object):
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37 def __init__(self, anm, script_index):
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38 self.anm = anm
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39 self.script_index = script_index
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40 self.texcoords = (0, 0, 0, 0) # x, y, width, height
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41 self.texoffsets = (0., 0.)
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42 self.mirrored = False
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43 self.rescale = (1., 1.)
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44 self.scale_speed = (0., 0.)
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45 self.rotations_3d = (0., 0., 0.)
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46 self.rotations_speed_3d = (0., 0., 0.)
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47 self.corner_relative_placement = False
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48 self.instruction_pointer = 0
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49 self.keep_still = False
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50 self.playing = True
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51 self.frame = 0
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52 self.color = (255, 255, 255)
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53 self.alpha = 255
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54 self._uvs = []
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55 self._vertices = []
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56 self._colors = []
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58
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59 def update_vertices_uvs_colors(self, override_width=0, override_height=0):
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60 vertmat = Matrix([[-.5, .5, .5, -.5],
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61 [-.5, -.5, .5, .5],
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62 [ .0, .0, .0, .0],
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63 [ 1., 1., 1., 1.]])
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64
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65 tx, ty, tw, th = self.texcoords
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66 sx, sy = self.rescale
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67 width = override_width or (tw * sx)
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68 height = override_height or (th * sy)
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69
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70 vertmat.scale2d(width, height)
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71 if self.mirrored:
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72 vertmat.flip()
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73 if self.rotations_3d != (0., 0., 0.):
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74 rx, ry, rz = self.rotations_3d
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75 if rx:
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76 vertmat.rotate_x(-rx)
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77 if ry:
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78 vertmat.rotate_y(ry)
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79 if rz:
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80 vertmat.rotate_z(-rz) #TODO: minus, really?
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81 if self.corner_relative_placement: # Reposition
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82 vertmat.translate(width / 2., height / 2., 0.)
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83
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84 x_1 = 1. / self.anm.size[0]
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85 y_1 = 1. / self.anm.size[1]
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86 tox, toy = self.texoffsets
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87 uvs = [(tx * x_1 + tox, 1. - (ty * y_1) + toy),
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88 ((tx + tw) * x_1 + tox, 1. - (ty * y_1) + toy),
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89 ((tx + tw) * x_1 + tox, 1. - ((ty + th) * y_1 + toy)),
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90 (tx * x_1 + tox, 1. - ((ty + th) * y_1 + toy))]
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91
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92 d = vertmat.data
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93 assert (d[3][0], d[3][1], d[3][2], d[3][3]) == (1., 1., 1., 1.)
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94 self._colors = [(self.color[0], self.color[1], self.color[2], self.alpha)] * 4
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95 self._uvs, self._vertices = uvs, zip(d[0], d[1], d[2])
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96
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97
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98
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99 def update(self):
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100 if not self.playing:
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101 return False
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102
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103 changed = False
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104 if not self.keep_still:
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105 script = self.anm.scripts[self.script_index]
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106 frame = self.frame
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107 while True:
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108 try:
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109 frame, instr_type, args = script[self.instruction_pointer]
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110 except IndexError:
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111 self.playing = False
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112 return False
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113
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114 if frame > self.frame:
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115 break
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116 else:
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117 self.instruction_pointer += 1
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118 if frame == self.frame:
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119 changed = True
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120 if instr_type == 0:
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121 self.playing = False
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122 return False
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123 if instr_type == 1:
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124 #TODO: handle out-of-anm sprites
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125 self.texcoords = self.anm.sprites[args[0]]
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126 elif instr_type == 2:
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127 self.rescale = args
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128 elif instr_type == 3:
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129 self.alpha = args[0] % 256 #TODO
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130 elif instr_type == 4:
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131 b, g, r = args
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132 self.color = (r, g, b)
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133 elif instr_type == 5:
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134 self.instruction_pointer, = args
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135 self.frame = script[self.instruction_pointer][0]
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136 elif instr_type == 7:
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137 self.mirrored = not self.mirrored
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138 elif instr_type == 9:
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139 self.rotations_3d = args
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140 elif instr_type == 10:
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141 self.rotations_speed_3d = args
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142 elif instr_type == 11:
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143 self.scale_speed = args
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144 elif instr_type == 16:
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145 #TODO: handle out-of-anm sprites
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146 #TODO: use the game's PRNG?
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147 self.texcoords = self.anm.sprites[args[0] + randrange(args[1])]
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148 elif instr_type == 23:
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149 self.corner_relative_placement = True #TODO
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150 elif instr_type == 27:
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151 tox, toy = self.texoffsets
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152 self.texoffsets = tox + args[0], toy
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153 elif instr_type == 28:
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154 tox, toy = self.texoffsets
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155 self.texoffsets = tox, toy + args[0]
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156 elif instr_type in (15, 21):
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157 self.keep_still = True
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158 break
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159 else:
58
3da4de9decd0 Use logging module
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160 logger.warn('unhandled instruction %d (args: %r)', instr_type, args)
17
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161 self.frame += 1
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162
30
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163 ax, ay, az = self.rotations_3d
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164 sax, say, saz = self.rotations_speed_3d
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165 self.rotations_3d = ax + sax, ay + say, az + saz
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166 self.rescale = self.rescale[0] + self.scale_speed[0], self.rescale[1] + self.scale_speed[1]
27
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167
57
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168 if self.rotations_speed_3d != (0., 0., 0.) or self.scale_speed != (0., 0.):
27
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169 return True
15
07fba4e1da65 Refactor
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170
30
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171 return changed
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172