Mercurial > touhou
comparison pytouhou/opengl/sprite.pyx @ 131:fab7ad2f0d8b
Use Cython, improve performances!
| author | Thibaut Girka <thib@sitedethib.com> |
|---|---|
| date | Sun, 11 Sep 2011 02:02:59 +0200 |
| parents | pytouhou/opengl/sprite.py@0313ca2c50e9 |
| children |
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| 130:11ab06f4c4c6 | 131:fab7ad2f0d8b |
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| 1 # -*- encoding: utf-8 -*- | |
| 2 ## | |
| 3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com> | |
| 4 ## | |
| 5 ## This program is free software; you can redistribute it and/or modify | |
| 6 ## it under the terms of the GNU General Public License as published | |
| 7 ## by the Free Software Foundation; version 3 only. | |
| 8 ## | |
| 9 ## This program is distributed in the hope that it will be useful, | |
| 10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 ## GNU General Public License for more details. | |
| 13 ## | |
| 14 | |
| 15 | |
| 16 from math import pi | |
| 17 | |
| 18 from pytouhou.utils.matrix cimport Matrix | |
| 19 | |
| 20 | |
| 21 cpdef object get_sprite_rendering_data(object sprite): | |
| 22 cdef Matrix vertmat | |
| 23 | |
| 24 if not sprite._changed: | |
| 25 return sprite._rendering_data | |
| 26 | |
| 27 vertmat = Matrix([[-.5, .5, .5, -.5], | |
| 28 [-.5, -.5, .5, .5], | |
| 29 [ .0, .0, .0, .0], | |
| 30 [ 1., 1., 1., 1.]]) | |
| 31 | |
| 32 tx, ty, tw, th = sprite.texcoords | |
| 33 sx, sy = sprite.rescale | |
| 34 width = sprite.width_override or (tw * sx) | |
| 35 height = sprite.height_override or (th * sy) | |
| 36 | |
| 37 vertmat.scale2d(width, height) | |
| 38 if sprite.mirrored: | |
| 39 vertmat.flip() | |
| 40 | |
| 41 rx, ry, rz = sprite.rotations_3d | |
| 42 if sprite.automatic_orientation: | |
| 43 rz += pi/2. - sprite.angle | |
| 44 elif sprite.force_rotation: | |
| 45 rz += sprite.angle | |
| 46 | |
| 47 if (rx, ry, rz) != (0., 0., 0.): | |
| 48 if rx: | |
| 49 vertmat.rotate_x(-rx) | |
| 50 if ry: | |
| 51 vertmat.rotate_y(ry) | |
| 52 if rz: | |
| 53 vertmat.rotate_z(-rz) #TODO: minus, really? | |
| 54 if sprite.corner_relative_placement: # Reposition | |
| 55 vertmat.translate(width / 2., height / 2., 0.) | |
| 56 if sprite.allow_dest_offset: | |
| 57 vertmat.translate(sprite.dest_offset[0], sprite.dest_offset[1], sprite.dest_offset[2]) | |
| 58 | |
| 59 x_1 = 1. / sprite.anm.size[0] | |
| 60 y_1 = 1. / sprite.anm.size[1] | |
| 61 tox, toy = sprite.texoffsets | |
| 62 uvs = [tx * x_1 + tox, 1. - (ty * y_1) + toy, | |
| 63 (tx + tw) * x_1 + tox, 1. - (ty * y_1) + toy, | |
| 64 (tx + tw) * x_1 + tox, 1. - ((ty + th) * y_1 + toy), | |
| 65 tx * x_1 + tox, 1. - ((ty + th) * y_1 + toy)] | |
| 66 | |
| 67 (x1, x2 , x3, x4), (y1, y2, y3, y4), (z1, z2, z3, z4), _ = vertmat.data | |
| 68 | |
| 69 key = (sprite.anm.first_name, sprite.anm.secondary_name), sprite.blendfunc | |
| 70 r, g, b = sprite.color | |
| 71 values = ((x1, y1, z1), (x2, y2, z2), (x3, y3, z3), (x4, y4, z4)), uvs, [r, g, b, sprite.alpha] * 4 | |
| 72 sprite._rendering_data = key, values | |
| 73 sprite._changed = False | |
| 74 | |
| 75 return sprite._rendering_data | |
| 76 |