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annotate pytouhou/game/sprite.py @ 55:de358a7684c8

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Fix a few bugs
author Thibaut Girka <thib@sitedethib.com>
date Tue, 23 Aug 2011 00:10:35 +0200
parents b383b09bc735
children 694f25881d0f
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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 struct import unpack
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17
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18 from pytouhou.utils.matrix import Matrix
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19
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20
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21 class AnmWrapper(object):
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22 def __init__(self, anm_files):
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23 self.anm_files = list(anm_files)
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24
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25 def get_sprite(self, script_index):
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26 for anm in self.anm_files:
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27 if script_index in anm.scripts:
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28 return anm, Sprite(anm, script_index)
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31
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32 class Sprite(object):
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33 def __init__(self, anm, script_index):
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34 self.anm = anm
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35 self.script_index = script_index
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36 self.texcoords = (0, 0, 0, 0) # x, y, width, height
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37 self.texoffsets = (0., 0.)
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38 self.mirrored = False
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39 self.rescale = (1., 1.)
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40 self.rotations_3d = (0., 0., 0.)
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41 self.rotations_speed_3d = (0., 0., 0.)
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42 self.corner_relative_placement = False
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43 self.instruction_pointer = 0
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44 self.keep_still = False
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45 self.playing = True
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46 self.frame = 0
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47 self.alpha = 255
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48 self._uvs = []
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49 self._vertices = []
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50 self._colors = []
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51
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52
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53 def update_vertices_uvs_colors(self, override_width=0, override_height=0):
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54 vertmat = Matrix([[-.5, .5, .5, -.5],
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55 [-.5, -.5, .5, .5],
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56 [ .0, .0, .0, .0],
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57 [ 1., 1., 1., 1.]])
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58
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59 tx, ty, tw, th = self.texcoords
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60 sx, sy = self.rescale
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61 width = override_width or (tw * sx)
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62 height = override_height or (th * sy)
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63
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64 vertmat.scale2d(width, height)
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65 if self.mirrored:
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66 vertmat.flip()
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67 if self.rotations_3d != (0., 0., 0.):
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68 rx, ry, rz = self.rotations_3d
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69 if rx:
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70 vertmat.rotate_x(-rx)
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71 if ry:
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72 vertmat.rotate_y(ry)
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73 if rz:
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74 vertmat.rotate_z(-rz) #TODO: minus, really?
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75 if self.corner_relative_placement: # Reposition
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76 vertmat.translate(width / 2., height / 2., 0.)
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77
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78 x_1 = 1. / self.anm.size[0]
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79 y_1 = 1. / self.anm.size[1]
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80 tox, toy = self.texoffsets
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81 uvs = [(tx * x_1 + tox, 1. - (ty * y_1) + toy),
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82 ((tx + tw) * x_1 + tox, 1. - (ty * y_1) + toy),
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83 ((tx + tw) * x_1 + tox, 1. - ((ty + th) * y_1 + toy)),
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84 (tx * x_1 + tox, 1. - ((ty + th) * y_1 + toy))]
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85
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86 d = vertmat.data
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87 assert (d[3][0], d[3][1], d[3][2], d[3][3]) == (1., 1., 1., 1.)
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88 self._colors = [(255, 255, 255, self.alpha)] * 4
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89 self._uvs, self._vertices = uvs, zip(d[0], d[1], d[2])
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90
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91
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92
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93 def update(self):
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94 if not self.playing:
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95 return False
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96
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97 changed = False
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98 if not self.keep_still:
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99 script = self.anm.scripts[self.script_index]
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100 frame = self.frame
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101 while True:
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102 try:
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103 frame, instr_type, args = script[self.instruction_pointer]
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104 except IndexError:
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105 self.playing = False
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106 return False
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107
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108 if frame > self.frame:
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109 break
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110 else:
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111 self.instruction_pointer += 1
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112 if frame == self.frame:
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113 changed = True
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114 if instr_type == 0:
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115 self.playing = False
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116 return False
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117 if instr_type == 1:
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118 self.texcoords = self.anm.sprites[args[0]]
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119 elif instr_type == 2:
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120 self.rescale = args
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121 elif instr_type == 3:
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122 self.alpha = args[0] % 256 #TODO
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123 elif instr_type == 5:
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124 self.instruction_pointer, = args
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125 self.frame = script[self.instruction_pointer][0]
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126 elif instr_type == 7:
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127 self.mirrored = True
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128 elif instr_type == 9:
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129 self.rotations_3d = args
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130 elif instr_type == 10:
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131 self.rotations_speed_3d = args
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132 elif instr_type == 23:
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133 self.corner_relative_placement = True #TODO
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134 elif instr_type == 27:
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135 tox, toy = self.texoffsets
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136 self.texoffsets = tox + args[0], toy
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137 elif instr_type == 28:
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138 tox, toy = self.texoffsets
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139 self.texoffsets = tox, toy + args[0]
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140 elif instr_type == 15:
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141 self.keep_still = True
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142 break
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143 else:
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144 print('unhandled opcode: %d, %r' % (instr_type, args)) #TODO
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145 self.frame += 1
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146
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147 ax, ay, az = self.rotations_3d
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148 sax, say, saz = self.rotations_speed_3d
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149 self.rotations_3d = ax + sax, ay + say, az + saz
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b65d6bc55793 Add rotating sprite support
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150
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151 if self.rotations_speed_3d != (0., 0., 0.):
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152 return True
15
07fba4e1da65 Refactor
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153
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154 return changed
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parents: 29
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155