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annotate pytouhou/vm/anmrunner.py @ 72:6a08f44fa01b

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Handle a few more ANM instructions. pytouhou.game.background needs some serious refactoring.
author Thibaut Girka <thib@sitedethib.com>
date Sun, 28 Aug 2011 01:23:11 +0200
parents a03d7a94b997
children f5f9b5eb69a3
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69
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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
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18 from pytouhou.utils.helpers import get_logger
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19 from pytouhou.vm.common import MetaRegistry, instruction
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20
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21 logger = get_logger(__name__)
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22
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23
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24 class ANMRunner(object):
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25 __metaclass__ = MetaRegistry
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26 __slots__ = ('_anm_wrapper', '_sprite', '_running',
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27 'script', 'instruction_pointer', 'frame')
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28
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29
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30 def __init__(self, anm_wrapper, script_id, sprite):
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31 self._anm_wrapper = anm_wrapper
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32 self._sprite = sprite
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33 self._running = True
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34
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35 anm, self.script = anm_wrapper.get_script(script_id)
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36 self.frame = 0
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37 self.instruction_pointer = 0
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38 pass
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39
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40
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41 def run_frame(self):
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42 if self._sprite._removed:
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43 return False
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44
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45 while self._running:
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46 try:
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47 frame, instr_type, args = self.script[self.instruction_pointer]
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48 except IndexError:
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49 return False
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50
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51 if frame > self.frame:
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52 break
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53 else:
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54 self.instruction_pointer += 1
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55
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56 if frame == self.frame:
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57 try:
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58 callback = self._handlers[instr_type]
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59 except KeyError:
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60 logger.warn('unhandled opcode %d (args: %r)', instr_type, args)
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61 else:
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62 callback(self, *args)
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63 self._sprite._changed = True
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64 self.frame += 1
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65 return self._running
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66
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67
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68 @instruction(0)
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69 def remove(self):
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70 self._sprite._removed = True
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71 self._running = True
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72
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73
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74 @instruction(1)
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75 def load_sprite(self, sprite_index):
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76 self._sprite.anm, self._sprite.texcoords = self._anm_wrapper.get_sprite(sprite_index)
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77
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78
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79 @instruction(2)
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80 def set_scale(self, sx, sy):
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81 self._sprite.rescale = sx, sy
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82
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83
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84 @instruction(3)
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85 def set_alpha(self, alpha):
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86 self._sprite.alpha = alpha % 256 #TODO
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87
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88
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89 @instruction(4)
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90 def set_color(self, b, g, r):
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91 self._sprite.color = (r, g, b)
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92
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93
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94 @instruction(5)
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95 def jump(self, instruction_pointer):
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96 #TODO: is that really how it works?
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97 self.instruction_pointer = instruction_pointer
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98 self.frame = self.script[self.instruction_pointer][0]
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99
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100
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101 @instruction(7)
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102 def toggle_mirrored(self):
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103 self._sprite.mirrored = not self._sprite.mirrored
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104
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105
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106 @instruction(9)
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107 def set_rotations_3d(self, rx, ry, rz):
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108 self._sprite.rotations_3d = rx, ry, rz
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109
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110
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111 @instruction(10)
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112 def set_rotations_speed_3d(self, srx, sry, srz):
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113 self._sprite.rotations_speed_3d = srx, sry, srz
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114
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115
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116 @instruction(11)
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117 def set_scale_speed(self, ssx, ssy):
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118 self._sprite.scale_speed = ssx, ssy
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119
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120
71
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121 @instruction(12)
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122 def fade(self, new_alpha, duration):
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123 self._sprite.fade(duration, new_alpha, lambda x: x) #TODO: formula
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124
72
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125
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126 @instruction(13)
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127 def set_blendfunc_alphablend(self):
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128 self._sprite.blendfunc = 1
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129
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130
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131 @instruction(14)
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132 def set_blendfunc_add(self):
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133 self._sprite.blendfunc = 0 #TODO
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134
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135
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136 @instruction(15)
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137 @instruction(21) #TODO
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138 def keep_still(self):
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139 self._running = False
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140
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141 @instruction(16)
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142 def load_random_sprite(self, min_idx, amp):
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143 #TODO: use the game's PRNG?
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144 self.load_sprite(min_idx + randrange(amp))
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145
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146
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147 @instruction(19)
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148 def move_in(self, x, y, z, duration):
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149 self._sprite.move_in(duration, x, y, z, lambda x: x) #TODO: formula
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150
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151
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152 @instruction(23)
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153 def set_corner_relative_placement(self):
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154 self._sprite.corner_relative_placement = True #TODO
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155
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156
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157 @instruction(25)
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158 def set_allow_dest_offset(self, value):
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159 self._sprite.allow_dest_offset = bool(value)
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160
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161
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162 @instruction(27)
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163 def shift_texture_x(self, dx):
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164 tox, toy = self._sprite.texoffsets
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165 self._sprite.texoffsets = tox + dx, toy
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166
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167
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168 @instruction(28)
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169 def shift_texture_y(self, dy):
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170 tox, toy = self._sprite.texoffsets
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171 self._sprite.texoffsets = tox, toy + dy
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172
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173
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174 @instruction(30)
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175 def scale_in(self, sx, sy, duration):
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176 self._sprite.scale_in(duration, sx, sy, lambda x: x) #TODO: formula
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177