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annotate pytouhou/game/effect.pyx @ 443:cae83b963695

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Make pytouhou.game.effect an extension type.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 17 Aug 2013 02:36:05 +0200
parents pytouhou/game/effect.py@b9d2db93972f
children 78e1c3864e73
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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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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15 from pytouhou.game.sprite cimport Sprite
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16 from pytouhou.vm.anmrunner import ANMRunner
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19 cdef class Effect(Element):
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20 def __init__(self, pos, index, anm):
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21 Element.__init__(self, pos)
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22 self.sprite = Sprite()
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23 self.anmrunner = ANMRunner(anm, index, self.sprite)
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26 cpdef update(self):
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27 if self.anmrunner is not None and not self.anmrunner.run_frame():
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28 self.anmrunner = None
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30 if self.sprite is not None:
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31 if self.sprite.removed:
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32 self.sprite = None
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33 self.removed = True
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37 cdef class Particle(Effect):
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38 def __init__(self, pos, index, anm, long amp, game, bint reverse=False, long duration=24):
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39 Effect.__init__(self, pos, index, anm)
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41 self.frame = 0
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42 self.duration = duration
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44 random_pos = (self.x + amp * <double>game.prng.rand_double() - amp / 2,
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45 self.y + amp * <double>game.prng.rand_double() - amp / 2)
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47 if not reverse:
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48 self.pos_interpolator = Interpolator((self.x, self.y), 0,
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49 random_pos, duration, formula=(lambda x: 2. * x - x ** 2))
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50 else:
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51 self.pos_interpolator = Interpolator(random_pos, 0,
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52 (self.x, self.y), duration, formula=(lambda x: 2. * x - x ** 2))
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53 self.x, self.y = random_pos
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56 cpdef update(self):
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57 Effect.update(self)
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59 self.pos_interpolator.update(self.frame)
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60 self.x, self.y = self.pos_interpolator.values
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62 self.frame += 1