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annotate pytouhou/game/sprite.py @ 50:811cefefb5c8

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Fix a few bugs and add support for a few instructions
author Thibaut Girka <thib@sitedethib.com>
date Mon, 22 Aug 2011 21:16:47 +0200
parents 93c8dc2de923
children ab826bc29aa2
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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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15
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.texoffsets = (0., 0.)
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23 self.mirrored = False
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24 self.rescale = (1., 1.)
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25 self.rotations_3d = (0., 0., 0.)
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26 self.rotations_speed_3d = (0., 0., 0.)
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27 self.corner_relative_placement = False
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28 self.instruction_pointer = 0
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29 self.keep_still = False
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30 self.playing = True
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31 self.frame = 0
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32 self.alpha = 255
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33 self._uvs = []
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34 self._vertices = []
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35 self._colors = []
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36
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37
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38 def update_vertices_uvs_colors(self, override_width=0, override_height=0):
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39 vertmat = Matrix([[-.5, .5, .5, -.5],
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40 [-.5, -.5, .5, .5],
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41 [ .0, .0, .0, .0],
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42 [ 1., 1., 1., 1.]])
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43
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44 tx, ty, tw, th = self.texcoords
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45 sx, sy = self.rescale
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46 width = override_width or (tw * sx)
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47 height = override_height or (th * sy)
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48
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49 vertmat.scale2d(width, height)
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50 if self.mirrored:
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51 vertmat.flip()
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52 if self.rotations_3d != (0., 0., 0.):
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53 rx, ry, rz = self.rotations_3d
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54 if rx:
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55 vertmat.rotate_x(-rx)
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56 if ry:
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57 vertmat.rotate_y(ry)
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58 if rz:
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59 vertmat.rotate_z(-rz) #TODO: minus, really?
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60 if self.corner_relative_placement: # Reposition
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61 vertmat.translate(width / 2., height / 2., 0.)
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62
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63 x_1 = 1. / self.anm.size[0]
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64 y_1 = 1. / self.anm.size[1]
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65 tox, toy = self.texoffsets
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66 uvs = [(tx * x_1 + tox, 1. - (ty * y_1) + toy),
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67 ((tx + tw) * x_1 + tox, 1. - (ty * y_1) + toy),
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68 ((tx + tw) * x_1 + tox, 1. - ((ty + th) * y_1 + toy)),
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69 (tx * x_1 + tox, 1. - ((ty + th) * y_1 + toy))]
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70
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71 d = vertmat.data
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72 assert (d[3][0], d[3][1], d[3][2], d[3][3]) == (1., 1., 1., 1.)
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73 self._colors = [(255, 255, 255, self.alpha)] * 4
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74 self._uvs, self._vertices = uvs, zip(d[0], d[1], d[2])
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75
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76
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77
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78 def update(self):
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79 if not self.playing:
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80 return False
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81
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82 changed = False
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83 if not self.keep_still:
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84 script = self.anm.scripts[self.script_index]
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85 try:
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86 frame = self.frame
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87 while frame <= self.frame:
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88 frame, instr_type, args = script[self.instruction_pointer]
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89 if frame == self.frame:
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90 changed = True
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91 if instr_type == 0:
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92 self.playing = False
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93 return False
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94 if instr_type == 1:
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95 self.texcoords = self.anm.sprites[args[0]]
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96 elif instr_type == 2:
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97 self.rescale = args
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98 elif instr_type == 3:
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99 self.alpha = args[0] % 256 #TODO
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100 elif instr_type == 5:
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101 self.instruction_pointer, = args
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102 self.frame = script[self.instruction_pointer][0]
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103 continue
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104 elif instr_type == 7:
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105 self.mirrored = True
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106 elif instr_type == 9:
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107 self.rotations_3d = args
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108 elif instr_type == 10:
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109 self.rotations_speed_3d = args
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110 elif instr_type == 23:
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111 self.corner_relative_placement = True #TODO
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112 elif instr_type == 27:
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113 tox, toy = self.texoffsets
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114 self.texoffsets = tox + args[0], toy
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115 elif instr_type == 28:
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116 tox, toy = self.texoffsets
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117 self.texoffsets = tox, toy + args[0]
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118 elif instr_type == 15:
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119 self.keep_still = True
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120 break
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121 else:
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122 print('unhandled opcode: %d, %r' % (instr_type, args)) #TODO
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123 if frame <= self.frame:
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124 self.instruction_pointer += 1
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125 except IndexError:
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126 self.playing = False
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127 pass
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128 self.frame += 1
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129
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130 ax, ay, az = self.rotations_3d
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131 sax, say, saz = self.rotations_speed_3d
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132 self.rotations_3d = ax + sax, ay + say, az + saz
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133
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134 if self.rotations_speed_3d != (0., 0., 0.):
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135 return True
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136
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137 return changed
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138