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comparison pytouhou/game/sprite.py @ 28:f405b947624d

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Massive sprite updating/matrix handling optimizations
author Thibaut Girka <thib@sitedethib.com>
date Fri, 12 Aug 2011 21:40:26 +0200
parents b65d6bc55793
children afa91be769ae
comparison
equal deleted inserted replaced
27:b65d6bc55793 28:f405b947624d
28 self._uvs = [] 28 self._uvs = []
29 self._vertices = [] 29 self._vertices = []
30 30
31 31
32 def update_uvs_vertices(self, override_width=0, override_height=0): 32 def update_uvs_vertices(self, override_width=0, override_height=0):
33 vertmat = Matrix() 33 vertmat = Matrix([[-.5, .5, .5, -.5],
34 vertmat.data[0][0] = -.5 34 [-.5, -.5, .5, .5],
35 vertmat.data[1][0] = -.5 35 [ .0, .0, .0, .0],
36 36 [ 1., 1., 1., 1.]])
37 vertmat.data[0][1] = .5
38 vertmat.data[1][1] = -.5
39
40 vertmat.data[0][2] = .5
41 vertmat.data[1][2] = .5
42
43 vertmat.data[0][3] = -.5
44 vertmat.data[1][3] = .5
45
46 for i in range(4):
47 vertmat.data[2][i] = 0.
48 vertmat.data[3][i] = 1.
49 37
50 tx, ty, tw, th = self.texcoords 38 tx, ty, tw, th = self.texcoords
51 sx, sy = self.rescale 39 sx, sy = self.rescale
52 width = override_width or (tw * sx) 40 width = override_width or (tw * sx)
53 height = override_height or (th * sy) 41 height = override_height or (th * sy)
54 42
55 transform = Matrix.get_scaling_matrix(width, height, 1.) 43 vertmat.scale(width, height, 1.)
56 if self.mirrored: 44 if self.mirrored:
57 transform = Matrix.get_scaling_matrix(-1., 1., 1.).mult(transform) 45 vertmat.flip()
58 if self.rotations_3d != (0., 0., 0.): 46 if self.rotations_3d != (0., 0., 0.):
59 rx, ry, rz = self.rotations_3d 47 rx, ry, rz = self.rotations_3d
60 transform = Matrix.get_rotation_matrix(-rx, 'x').mult(transform) 48 if rx:
61 transform = Matrix.get_rotation_matrix(ry, 'y').mult(transform) 49 vertmat.rotate_x(-rx)
62 transform = Matrix.get_rotation_matrix(-rz, 'z').mult(transform) #TODO: minus, really? 50 if ry:
51 vertmat.rotate_y(ry)
52 if rz:
53 vertmat.rotate_z(-rz) #TODO: minus, really?
63 if self.corner_relative_placement: # Reposition 54 if self.corner_relative_placement: # Reposition
64 transform = Matrix.get_translation_matrix(width / 2., height / 2., 0.).mult(transform) 55 vertmat.translate(width / 2., height / 2., 0.)
65 vertmat = transform.mult(vertmat)
66 56
67 uvs = [(tx / self.anm.size[0], 1. - (ty / self.anm.size[1])), 57 uvs = [(tx / self.anm.size[0], 1. - (ty / self.anm.size[1])),
68 ((tx + tw) / self.anm.size[0], 1. - (ty / self.anm.size[1])), 58 ((tx + tw) / self.anm.size[0], 1. - (ty / self.anm.size[1])),
69 ((tx + tw) / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1])), 59 ((tx + tw) / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1])),
70 (tx / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1]))] 60 (tx / self.anm.size[0], 1. - ((ty + th) / self.anm.size[1]))]