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annotate pytouhou/vm/anmrunner.py @ 204:88361534c77e

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Add some documentation (argh, so much left to document!)
author Thibaut Girka <thib@sitedethib.com>
date Tue, 01 Nov 2011 13:46:03 +0100
parents e7902309305c
children 741860192b56
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
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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 'sprite_index_offset',
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28 'script', 'instruction_pointer', 'frame')
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29
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30
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31 def __init__(self, anm_wrapper, script_id, sprite, sprite_index_offset=0):
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32 self._anm_wrapper = anm_wrapper
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33 self._sprite = sprite
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34 self._running = True
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35
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36 anm, self.script = anm_wrapper.get_script(script_id)
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37 self.frame = 0
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38 self.instruction_pointer = 0
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39
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40 self.sprite_index_offset = sprite_index_offset
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41
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42
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43 def run_frame(self):
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44 if not self._running:
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45 return False
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46
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47 sprite = self._sprite
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48
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49 while self._running:
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50 frame, opcode, args = self.script[self.instruction_pointer]
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51
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52 if frame > self.frame:
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53 break
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54 else:
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55 self.instruction_pointer += 1
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56
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57 if frame == self.frame:
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58 try:
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59 callback = self._handlers[opcode]
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60 except KeyError:
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61 logger.warn('unhandled opcode %d (args: %r)', opcode, args)
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62 else:
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63 callback(self, *args)
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64 sprite._changed = True
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65 self.frame += 1
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66
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67 # Update sprite
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68 sprite.frame += 1
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69
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70 if sprite.rotations_speed_3d != (0., 0., 0.):
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71 ax, ay, az = sprite.rotations_3d
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72 sax, say, saz = sprite.rotations_speed_3d
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73 sprite.rotations_3d = ax + sax, ay + say, az + saz
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74 sprite._changed = True
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75
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76 if sprite.scale_speed != (0., 0.):
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77 rx, ry = sprite.rescale
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78 rsx, rsy = sprite.scale_speed
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79 sprite.rescale = rx + rsx, ry + rsy
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80 sprite._changed = True
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81
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82 if sprite.fade_interpolator:
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83 sprite.fade_interpolator.update(sprite.frame)
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84 sprite.alpha = int(sprite.fade_interpolator.values[0])
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85 sprite._changed = True
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86
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87 if sprite.scale_interpolator:
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88 sprite.scale_interpolator.update(sprite.frame)
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89 sprite.rescale = sprite.scale_interpolator.values
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90 sprite._changed = True
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91
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92 if sprite.offset_interpolator:
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93 sprite.offset_interpolator.update(sprite.frame)
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94 sprite.dest_offset = sprite.offset_interpolator.values
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95 sprite._changed = True
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96
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97 return self._running
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98
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99
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100 @instruction(0)
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101 def remove(self):
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102 self._sprite._removed = True
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103 self._running = False
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104
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105
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106 @instruction(1)
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107 def load_sprite(self, sprite_index):
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108 self._sprite.anm, self._sprite.texcoords = self._anm_wrapper.get_sprite(sprite_index + self.sprite_index_offset)
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109
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110
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111 @instruction(2)
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112 def set_scale(self, sx, sy):
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113 self._sprite.rescale = sx, sy
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114
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115
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116 @instruction(3)
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117 def set_alpha(self, alpha):
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118 self._sprite.alpha = alpha % 256 #TODO
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119
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120
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121 @instruction(4)
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122 def set_color(self, b, g, r):
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123 self._sprite.color = (r, g, b)
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124
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125
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126 @instruction(5)
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127 def jump(self, instruction_pointer):
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128 #TODO: is that really how it works?
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129 self.instruction_pointer = instruction_pointer
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130 self.frame = self.script[self.instruction_pointer][0]
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131
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132
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133 @instruction(7)
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134 def toggle_mirrored(self):
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135 self._sprite.mirrored = not self._sprite.mirrored
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136
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137
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138 @instruction(9)
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139 def set_rotations_3d(self, rx, ry, rz):
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140 self._sprite.rotations_3d = rx, ry, rz
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141
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142
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143 @instruction(10)
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144 def set_rotations_speed_3d(self, srx, sry, srz):
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145 self._sprite.rotations_speed_3d = srx, sry, srz
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146
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147
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148 @instruction(11)
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149 def set_scale_speed(self, ssx, ssy):
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150 self._sprite.scale_speed = ssx, ssy
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151
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152
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153 @instruction(12)
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154 def fade(self, new_alpha, duration):
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155 self._sprite.fade(duration, new_alpha, lambda x: x) #TODO: formula
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156
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157
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158 @instruction(13)
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159 def set_blendfunc_alphablend(self):
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160 self._sprite.blendfunc = 1
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161
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162
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163 @instruction(14)
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164 def set_blendfunc_add(self):
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165 self._sprite.blendfunc = 0 #TODO
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166
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167
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168 @instruction(15)
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169 @instruction(21) #TODO
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170 def keep_still(self):
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171 self._running = False
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172
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173 @instruction(16)
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174 def load_random_sprite(self, min_idx, amp):
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175 #TODO: use the game's PRNG?
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176 self.load_sprite(min_idx + randrange(amp))
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177
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178
170
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179 @instruction(17)
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180 def move(self, x, y, z):
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181 self._sprite.dest_offset = (x, y, z)
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182
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183
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184 @instruction(18)
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185 def move_in_linear(self, x, y, z, duration):
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186 self._sprite.move_in(duration, x, y, z, lambda x: x)
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187
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188
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189 @instruction(19)
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190 def move_in_decel(self, x, y, z, duration):
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191 self._sprite.move_in(duration, x, y, z, lambda x: 2. * x - x ** 2)
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192
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193
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194 @instruction(20)
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195 def move_in_accel(self, x, y, z, duration):
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196 self._sprite.move_in(duration, x, y, z, lambda x: x ** 2)
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197
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198
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199 @instruction(23)
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200 def set_corner_relative_placement(self):
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201 self._sprite.corner_relative_placement = True #TODO
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202
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203
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204 @instruction(25)
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205 def set_allow_dest_offset(self, value):
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206 self._sprite.allow_dest_offset = bool(value)
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207
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208
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209 @instruction(26)
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210 def set_automatic_orientation(self, value):
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211 """If true, rotate by pi-angle around the z axis.
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212 """
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213 self._sprite.automatic_orientation = bool(value)
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214
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215
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216 @instruction(27)
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217 def shift_texture_x(self, dx):
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218 tox, toy = self._sprite.texoffsets
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219 self._sprite.texoffsets = tox + dx, toy
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220
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221
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222 @instruction(28)
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223 def shift_texture_y(self, dy):
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224 tox, toy = self._sprite.texoffsets
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225 self._sprite.texoffsets = tox, toy + dy
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226
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227
71
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228 @instruction(30)
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229 def scale_in(self, sx, sy, duration):
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230 self._sprite.scale_in(duration, sx, sy, lambda x: x) #TODO: formula
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231