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annotate pytouhou/game/effect.py @ 182:20843875ad8f

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(Hopefully) use difficulty as it should. The difficulty[0] (also called rank) varies from 0 to 32 and affects various parts of the game. The difficulty now impact those parts, but how it is modified during the gameplay is not clear. Such changes to the difficulty are not handled yet. [0] http://en.touhouwiki.net/wiki/Embodiment_of_Scarlet_Devil/Gameplay#Rank
author Thibaut Girka <thib@sitedethib.com>
date Tue, 25 Oct 2011 01:29:40 +0200
parents 184196480f59
children dbe6b7b2d3fc
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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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14
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15
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16 from pytouhou.game.sprite import Sprite
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17 from pytouhou.vm.anmrunner import ANMRunner
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18 from pytouhou.utils.interpolator import Interpolator
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19 from math import pi
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21
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22
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23 class Effect(object):
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24 def __init__(self, pos, index, anm_wrapper):
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25 self._sprite = Sprite()
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26 self._anmrunner = ANMRunner(anm_wrapper, index, self._sprite)
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27 self._anmrunner.run_frame()
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28 self._removed = False
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29
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30 self.x, self.y = pos
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31
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32
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33 def update(self):
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34 if self._anmrunner and not self._anmrunner.run_frame():
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35 self._anmrunner = None
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36
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37 if self._sprite:
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38 if self._sprite._removed:
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39 self._sprite = None
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40
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41
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42 class Particle(object):
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43 def __init__(self, start_pos, index, anm_wrapper, size, end_pos):
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44 self._sprite = Sprite()
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45 self._sprite.anm, self._sprite.texcoords = anm_wrapper.get_sprite(index)
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46 self._removed = False
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47
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48 self.x, self.y = start_pos
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49 self.frame = 0
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50 self._sprite.alpha = 128
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51 self._sprite.blendfunc = 1
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52
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53 self.pos_interpolator = Interpolator(start_pos, 0,
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54 end_pos, 24, formula=(lambda x: 2. * x - x ** 2))
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55 self.scale_interpolator = Interpolator((size, size), 0,
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56 (0., 0.), 24)
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57 self.rotations_interpolator = Interpolator((0., 0., 0.), 0,
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58 (0., 0., 2*pi), 24)
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59 self._sprite._changed = True
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60
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61
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62 def update(self):
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63 self.pos_interpolator.update(self.frame)
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64 self.x, self.y = self.pos_interpolator.values
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65
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66 self.scale_interpolator.update(self.frame)
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67 self._sprite.rescale = self.scale_interpolator.values
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68
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69 self.rotations_interpolator.update(self.frame)
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70 self._sprite.rotations_3d = self.rotations_interpolator.values
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71
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72 self._sprite._changed = True
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73
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74 if self.frame == 24:
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75 self._removed = True
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76
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77 self.frame += 1