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annotate pytouhou/vm/anmrunner.py @ 254:6bd565019f9a

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Preload textures to avoid slowdowns during gameplay
author Thibaut Girka <thib@sitedethib.com>
date Sun, 22 Jan 2012 18:03:47 +0100
parents d3ba32a9096e
children 94c636f8f863
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 'waiting')
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30
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31
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32 def __init__(self, anm_wrapper, script_id, sprite, sprite_index_offset=0):
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33 self._anm_wrapper = anm_wrapper
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34 self._sprite = sprite
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35 self._running = True
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36 self.waiting = False
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37
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38 anm, self.script = anm_wrapper.get_script(script_id)
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39 self.frame = 0
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40 self.instruction_pointer = 0
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41
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42 self.sprite_index_offset = sprite_index_offset
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43
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44
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45 def interrupt(self, interrupt):
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46 new_ip = self.script.interrupts.get(interrupt, None)
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47 if new_ip is None:
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48 new_ip = self.script.interrupts.get(-1, None)
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49 if new_ip is None:
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50 return False
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51 self.instruction_pointer = new_ip
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52 self.frame, opcode, args = self.script[self.instruction_pointer]
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53 self.waiting = False
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54 self._sprite.visible = True
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55 return True
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56
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57
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58 def run_frame(self):
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59 if not self._running:
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60 return False
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61
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62 sprite = self._sprite
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63
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64 while self._running and not self.waiting:
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65 frame, opcode, args = self.script[self.instruction_pointer]
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66
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67 if frame > self.frame:
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68 break
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69 else:
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70 self.instruction_pointer += 1
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71
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72 if frame == self.frame:
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73 try:
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74 callback = self._handlers[opcode]
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75 except KeyError:
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76 logger.warn('unhandled opcode %d (args: %r)', opcode, args)
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77 else:
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78 callback(self, *args)
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79 sprite._changed = True
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80
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81 if not self.waiting:
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82 self.frame += 1
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83
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84 # Update sprite
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85 sprite.frame += 1
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86
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87 if sprite.rotations_speed_3d != (0., 0., 0.):
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88 ax, ay, az = sprite.rotations_3d
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89 sax, say, saz = sprite.rotations_speed_3d
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90 sprite.rotations_3d = ax + sax, ay + say, az + saz
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91 sprite._changed = True
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92
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93 if sprite.scale_speed != (0., 0.):
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94 rx, ry = sprite.rescale
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95 rsx, rsy = sprite.scale_speed
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96 sprite.rescale = rx + rsx, ry + rsy
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97 sprite._changed = True
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98
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99 if sprite.fade_interpolator:
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100 sprite.fade_interpolator.update(sprite.frame)
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101 sprite.alpha = int(sprite.fade_interpolator.values[0])
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102 sprite._changed = True
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103
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104 if sprite.scale_interpolator:
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105 sprite.scale_interpolator.update(sprite.frame)
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106 sprite.rescale = sprite.scale_interpolator.values
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107 sprite._changed = True
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108
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109 if sprite.offset_interpolator:
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110 sprite.offset_interpolator.update(sprite.frame)
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111 sprite.dest_offset = sprite.offset_interpolator.values
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112 sprite._changed = True
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113
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114 return self._running
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115
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116
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117 @instruction(0)
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118 def remove(self):
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119 self._sprite._removed = True
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120 self._running = False
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121
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122
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123 @instruction(1)
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124 def load_sprite(self, sprite_index):
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125 self._sprite.anm, self._sprite.texcoords = self._anm_wrapper.get_sprite(sprite_index + self.sprite_index_offset)
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126
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127
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128 @instruction(2)
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129 def set_scale(self, sx, sy):
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130 self._sprite.rescale = sx, sy
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131
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132
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133 @instruction(3)
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134 def set_alpha(self, alpha):
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135 self._sprite.alpha = alpha % 256 #TODO
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136
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137
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138 @instruction(4)
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139 def set_color(self, b, g, r):
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140 self._sprite.color = (r, g, b)
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141
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142
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143 @instruction(5)
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144 def jump(self, instruction_pointer):
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145 #TODO: is that really how it works?
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146 self.instruction_pointer = instruction_pointer
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147 self.frame = self.script[self.instruction_pointer][0]
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148
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149
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150 @instruction(7)
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151 def toggle_mirrored(self):
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152 self._sprite.mirrored = not self._sprite.mirrored
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153
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154
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155 @instruction(9)
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156 def set_rotations_3d(self, rx, ry, rz):
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157 self._sprite.rotations_3d = rx, ry, rz
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158
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159
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160 @instruction(10)
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161 def set_rotations_speed_3d(self, srx, sry, srz):
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162 self._sprite.rotations_speed_3d = srx, sry, srz
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163
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164
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165 @instruction(11)
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166 def set_scale_speed(self, ssx, ssy):
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167 self._sprite.scale_speed = ssx, ssy
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168
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169
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170 @instruction(12)
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171 def fade(self, new_alpha, duration):
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172 self._sprite.fade(duration, new_alpha, lambda x: x) #TODO: formula
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173
72
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174
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175 @instruction(13)
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176 def set_blendfunc_alphablend(self):
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177 self._sprite.blendfunc = 1
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178
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179
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180 @instruction(14)
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181 def set_blendfunc_add(self):
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182 self._sprite.blendfunc = 0 #TODO
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183
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184
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185 @instruction(15)
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186 def keep_still(self):
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187 self._running = False
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188
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189 @instruction(16)
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190 def load_random_sprite(self, min_idx, amp):
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191 #TODO: use the game's PRNG?
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192 self.load_sprite(min_idx + randrange(amp))
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193
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194
170
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195 @instruction(17)
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196 def move(self, x, y, z):
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197 self._sprite.dest_offset = (x, y, z)
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198
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199
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200 @instruction(18)
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201 def move_in_linear(self, x, y, z, duration):
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202 self._sprite.move_in(duration, x, y, z, lambda x: x)
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203
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204
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205 @instruction(19)
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206 def move_in_decel(self, x, y, z, duration):
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207 self._sprite.move_in(duration, x, y, z, lambda x: 2. * x - x ** 2)
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208
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209
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210 @instruction(20)
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211 def move_in_accel(self, x, y, z, duration):
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212 self._sprite.move_in(duration, x, y, z, lambda x: x ** 2)
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213
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214
236
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215 @instruction(21)
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216 def wait(self):
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217 """Wait for an interrupt.
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218 """
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219 self.waiting = True
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220
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221
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222 @instruction(22)
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223 def interrupt_label(self, interrupt):
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224 """Noop"""
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225 pass
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226
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227
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228 @instruction(23)
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229 def set_corner_relative_placement(self):
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230 self._sprite.corner_relative_placement = True #TODO
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231
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232
240
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233 @instruction(24)
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234 def wait_ex(self):
245
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235 """Hide the sprite and wait for an interrupt.
240
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236 """
245
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237 self._sprite.visible = False
240
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diff changeset
238 self.waiting = True
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239
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240
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241 @instruction(25)
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242 def set_allow_dest_offset(self, value):
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243 self._sprite.allow_dest_offset = bool(value)
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244
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245
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246 @instruction(26)
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247 def set_automatic_orientation(self, value):
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248 """If true, rotate by pi-angle around the z axis.
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249 """
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250 self._sprite.automatic_orientation = bool(value)
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251
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252
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253 @instruction(27)
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254 def shift_texture_x(self, dx):
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255 tox, toy = self._sprite.texoffsets
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256 self._sprite.texoffsets = tox + dx, toy
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257
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258
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259 @instruction(28)
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260 def shift_texture_y(self, dy):
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261 tox, toy = self._sprite.texoffsets
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262 self._sprite.texoffsets = tox, toy + dy
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263
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264
245
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diff changeset
265 @instruction(29)
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266 def set_visible(self, visible):
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267 self._sprite.visible = bool(visible & 1)
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268
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269
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270 @instruction(30)
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271 def scale_in(self, sx, sy, duration):
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272 self._sprite.scale_in(duration, sx, sy, lambda x: x) #TODO: formula
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273