annotate pytouhou/game/sprite.py @ 29:afa91be769ae

Don't lose time updating off-screen enemies' sprites
author Thibaut Girka <thib@sitedethib.com>
date Fri, 12 Aug 2011 22:03:34 +0200
parents f405b947624d
children e3ba2fa966f6
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1 from struct import unpack
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2
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3 from pytouhou.utils.matrix import Matrix
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5
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6 class AnmWrapper(object):
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7 def __init__(self, anm_files):
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8 self.anm_files = list(anm_files)
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9
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10 def get_sprite(self, script_index):
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11 for anm in self.anm_files:
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12 if script_index in anm.scripts:
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13 return anm, Sprite(anm, script_index)
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16
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17 class Sprite(object):
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18 def __init__(self, anm, script_index):
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19 self.anm = anm
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20 self.script_index = script_index
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21 self.texcoords = (0, 0, 0, 0) # x, y, width, height
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22 self.mirrored = False
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23 self.rescale = (1., 1.)
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24 self.rotations_3d = (0., 0., 0.)
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25 self.rotations_speed_3d = (0., 0., 0.)
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26 self.corner_relative_placement = False
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27 self.frame = 0
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28 self._uvs = []
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29 self._vertices = []
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32 def update_uvs_vertices(self, override_width=0, override_height=0):
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33 vertmat = Matrix([[-.5, .5, .5, -.5],
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34 [-.5, -.5, .5, .5],
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35 [ .0, .0, .0, .0],
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36 [ 1., 1., 1., 1.]])
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37
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38 tx, ty, tw, th = self.texcoords
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39 sx, sy = self.rescale
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40 width = override_width or (tw * sx)
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41 height = override_height or (th * sy)
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43 vertmat.scale(width, height, 1.)
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44 if self.mirrored:
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45 vertmat.flip()
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46 if self.rotations_3d != (0., 0., 0.):
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47 rx, ry, rz = self.rotations_3d
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48 if rx:
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49 vertmat.rotate_x(-rx)
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50 if ry:
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51 vertmat.rotate_y(ry)
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52 if rz:
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53 vertmat.rotate_z(-rz) #TODO: minus, really?
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54 if self.corner_relative_placement: # Reposition
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55 vertmat.translate(width / 2., height / 2., 0.)
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56
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57 uvs = [(tx / self.anm.size[0], 1. - (ty / self.anm.size[1])),
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58 ((tx + tw) / self.anm.size[0], 1. - (ty / self.anm.size[1])),
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59 ((tx + tw) / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1])),
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60 (tx / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1]))]
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61
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62 vertices = []
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63 for i in xrange(4):
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64 w = vertmat.data[3][i]
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65 vertices.append((vertmat.data[0][i] / w,
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66 vertmat.data[1][i] / w,
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67 vertmat.data[2][i] / w))
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68
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69 self._uvs, self._vertices = uvs, vertices
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73 def update(self):
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74 properties = {}
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75 for time, instr_type, data in self.anm.scripts[self.script_index]:
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76 if time == self.frame:
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77 if instr_type == 15: #Return
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78 break
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79 else:
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80 properties[instr_type] = data
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81 self.frame += 1
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82
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83 self.rotations_3d = tuple(x + y for x, y in zip(self.rotations_3d, self.rotations_speed_3d))
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84
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85 if properties:
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86 if 1 in properties:
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87 self.texcoords = self.anm.sprites[unpack('<I', properties[1])[0]]
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88 del properties[1]
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89 if 2 in properties:
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90 self.rescale = unpack('<ff', properties[2])
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91 del properties[2]
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92 if 5 in properties:
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93 self.frame, = unpack('<I', properties[5])
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94 del properties[5]
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95 if 7 in properties:
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96 self.mirrored = True #TODO
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97 del properties[7]
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98 if 9 in properties:
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99 self.rotations_3d = unpack('<fff', properties[9])
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100 del properties[9]
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101 if 10 in properties:
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102 self.rotations_speed_3d = unpack('<fff', properties[10])
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103 del properties[10]
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104 if 23 in properties:
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105 self.corner_relative_placement = True #TODO
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106 del properties[23]
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107 if properties:
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108 print('Leftover properties: %r' % properties) #TODO
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109 return True
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110 if self.rotations_speed_3d != (0., 0., 0.):
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111 return True
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112 return False
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113