annotate pytouhou/game/sprite.py @ 21:bf225780973f

Small refactoring, and Rumia \o/
author Thibaut Girka <thib@sitedethib.com>
date Thu, 11 Aug 2011 12:39:12 +0200
parents d940d004b840
children f17122405121
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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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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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bf225780973f Small refactoring, and Rumia \o/
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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.corner_relative_placement = False
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26 self.frame = 0
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27 self._uvs = []
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28 self._vertices = []
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29
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30
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31 def update_uvs_vertices(self, override_width=0, override_height=0):
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32 vertmat = Matrix()
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33 vertmat.data[0][0] = -.5
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34 vertmat.data[1][0] = -.5
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35
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36 vertmat.data[0][1] = .5
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37 vertmat.data[1][1] = -.5
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38
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39 vertmat.data[0][2] = .5
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40 vertmat.data[1][2] = .5
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41
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42 vertmat.data[0][3] = -.5
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43 vertmat.data[1][3] = .5
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44
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45 for i in range(4):
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46 vertmat.data[2][i] = 0.
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47 vertmat.data[3][i] = 1.
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48
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49 tx, ty, tw, th = self.texcoords
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50 sx, sy = self.rescale
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51 width = override_width or (tw * sx)
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52 height = override_height or (th * sy)
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53
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54 transform = Matrix.get_scaling_matrix(width, height, 1.)
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55 if self.mirrored:
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56 transform = Matrix.get_scaling_matrix(-1., 1., 1.).mult(transform)
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57 if self.rotations_3d != (0., 0., 0.):
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58 rx, ry, rz = self.rotations_3d
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59 transform = Matrix.get_rotation_matrix(-rx, 'x').mult(transform)
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60 transform = Matrix.get_rotation_matrix(ry, 'y').mult(transform)
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61 transform = Matrix.get_rotation_matrix(-rz, 'z').mult(transform) #TODO: minus, really?
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62 if self.corner_relative_placement: # Reposition
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63 transform = Matrix.get_translation_matrix(width / 2., height / 2., 0.).mult(transform)
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64 vertmat = transform.mult(vertmat)
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65
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66 uvs = [(tx / self.anm.size[0], 1. - (ty / self.anm.size[1])),
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67 ((tx + tw) / self.anm.size[0], 1. - (ty / self.anm.size[1])),
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68 ((tx + tw) / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1])),
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69 (tx / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1]))]
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70
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71 vertices = []
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72 for i in xrange(4):
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73 w = vertmat.data[3][i]
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74 vertices.append((vertmat.data[0][i] / w,
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75 vertmat.data[1][i] / w,
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76 vertmat.data[2][i] / w))
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77
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78 self._uvs, self._vertices = uvs, vertices
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79
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80
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81
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82 def update(self, override_width=0, override_height=0):
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83 properties = {}
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84 for time, instr_type, data in self.anm.scripts[self.script_index]:
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85 if time == self.frame:
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86 if instr_type == 15: #Return
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87 break
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88 else:
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89 properties[instr_type] = data
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90 self.frame += 1
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91
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92 if properties:
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93 if 1 in properties:
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94 self.texcoords = self.anm.sprites[unpack('<I', properties[1])[0]]
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95 del properties[1]
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96 if 2 in properties:
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97 self.rescale = unpack('<ff', properties[2])
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98 del properties[2]
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99 if 7 in properties:
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100 self.mirrored = True #TODO
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101 del properties[7]
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102 if 9 in properties:
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103 self.rotations_3d = unpack('<fff', properties[9])
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104 del properties[9]
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105 if 23 in properties:
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106 self.corner_relative_placement = True #TODO
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107 del properties[23]
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108 if properties:
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109 print('Leftover properties: %r' % properties) #TODO
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110 self.update_uvs_vertices(override_width, override_height)
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111 return True
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112 return False
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113