Mercurial > touhou

annotate pytouhou/utils/matrix.pyx @ 666:838d9402b12f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Implement ECL instruction 98, for directional sprites.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Mon, 12 Aug 2019 00:22:25 +0200
parents e5361b74b9ad
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
52
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
1 # -*- encoding: utf-8 -*-
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
2 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
4 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
5 ## This program is free software; you can redistribute it and/or modify
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
6 ## it under the terms of the GNU General Public License as published
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
7 ## by the Free Software Foundation; version 3 only.
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
8 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
9 ## This program is distributed in the hope that it will be useful,
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
12 ## GNU General Public License for more details.
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
13 ##
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
Thibaut Girka <thib@sitedethib.com>
parents: 44
diff changeset
14
131
fab7ad2f0d8b Use Cython, improve performances!
Thibaut Girka <thib@sitedethib.com>
parents: 123
diff changeset
15 from libc.math cimport sin, cos
423
d8630c086926 Replace Pyglet with our own Cython OpenGL wrapper.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 417
diff changeset
16 from libc.stdlib cimport malloc, free
493
26c082870dcf Use a cached static float[16] instead of a list for default Matrix data.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 435
diff changeset
17 from libc.string cimport memcpy
26c082870dcf Use a cached static float[16] instead of a list for default Matrix data.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 435
diff changeset
18
26c082870dcf Use a cached static float[16] instead of a list for default Matrix data.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 435
diff changeset
19
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
20 cdef Matrix identity
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
21 identity = Matrix(1, 0, 0, 0,
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
22 0, 1, 0, 0,
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
23 0, 0, 1, 0,
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
24 0, 0, 0, 1)
423
d8630c086926 Replace Pyglet with our own Cython OpenGL wrapper.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 417
diff changeset
25
d8630c086926 Replace Pyglet with our own Cython OpenGL wrapper.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 417
diff changeset
26
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
27 cdef Matrix *new_matrix(Matrix *data) nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
28 mat = <Matrix*> malloc(sizeof(Matrix))
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
29 memcpy(mat, data, sizeof(Matrix))
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
30 return mat
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
31
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
32
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
33 cdef Matrix *new_identity() nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
34 return new_matrix(&identity)
423
d8630c086926 Replace Pyglet with our own Cython OpenGL wrapper.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 417
diff changeset
35
d8630c086926 Replace Pyglet with our own Cython OpenGL wrapper.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 417
diff changeset
36
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
37 cdef void mul(Matrix *mat1, Matrix *mat2) nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
38 cdef float *d3
613
560b45a7d014 Don’t uselessly malloc() a matrix for multiply, the stack is here for that!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 590
diff changeset
39 cdef Matrix out
370
74471afbac37 Add a programmable pipeline renderer, and a --fixed-pipeline switch to use the old one.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 131
diff changeset
40
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
41 d1 = <float*>mat1
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
42 d2 = <float*>mat2
613
560b45a7d014 Don’t uselessly malloc() a matrix for multiply, the stack is here for that!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 590
diff changeset
43 d3 = <float*>&out
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
44 for i in range(4):
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
45 for j in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
46 d3[4*i+j] = 0
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
47 for k in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
48 d3[4*i+j] += d1[4*i+k] * d2[4*k+j]
613
560b45a7d014 Don’t uselessly malloc() a matrix for multiply, the stack is here for that!
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 590
diff changeset
49 memcpy(mat1, &out, sizeof(Matrix))
370
74471afbac37 Add a programmable pipeline renderer, and a --fixed-pipeline switch to use the old one.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 131
diff changeset
50
74471afbac37 Add a programmable pipeline renderer, and a --fixed-pipeline switch to use the old one.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 131
diff changeset
51
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
52 cdef void flip(Matrix *mat) nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
53 data = <float*>mat
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
54 for i in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
55 data[i] = -data[i]
28
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
56
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
57
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
58 cdef void scale2d(Matrix *mat, float x, float y) nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
59 data = <float*>mat
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
60 for i in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
61 data[ i] *= x
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
62 data[4+i] *= y
28
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
63
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
64
527
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
65 cdef void translate(Matrix *mat, float[3] offset) nogil:
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
66 cdef float item[3]
435
878273a984c4 Improve Matrix representation, using float[16] instead of imbricated python lists.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 424
diff changeset
67
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
68 data = <float*>mat
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
69 for i in range(3):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
70 item[i] = data[12+i] * offset[i]
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
71
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
72 for i in range(3):
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
73 for j in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
74 data[4*i+j] += item[i]
31
55973a3f1222 Some more optimization!
Thibaut Girka <thib@sitedethib.com>
parents: 30
diff changeset
75
55973a3f1222 Some more optimization!
Thibaut Girka <thib@sitedethib.com>
parents: 30
diff changeset
76
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
77 cdef void translate2d(Matrix *mat, float x, float y) nogil:
527
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
78 cdef float[3] offset
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
79
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
80 offset[0] = x
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
81 offset[1] = y
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
82 offset[2] = 0
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
83
db28538cd399 Use Sprite C arrays instead of their tuple representation where it makes sense.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 523
diff changeset
84 translate(mat, offset)
28
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
85
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
86
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
87 cdef void rotate_x(Matrix *mat, float angle) nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
88 cdef float cos_a, sin_a
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
89 cdef float lines[8]
435
878273a984c4 Improve Matrix representation, using float[16] instead of imbricated python lists.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 424
diff changeset
90
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
91 data = <float*>mat
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
92 cos_a = cos(angle)
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
93 sin_a = sin(angle)
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
94 for i in range(8):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
95 lines[i] = data[i+4]
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
96 for i in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
97 data[4+i] = cos_a * lines[i] - sin_a * lines[4+i]
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
98 data[8+i] = sin_a * lines[i] + cos_a * lines[4+i]
28
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
99
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
100
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
101 cdef void rotate_y(Matrix *mat, float angle) nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
102 cdef float cos_a, sin_a
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
103 cdef float lines[8]
435
878273a984c4 Improve Matrix representation, using float[16] instead of imbricated python lists.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 424
diff changeset
104
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
105 data = <float*>mat
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
106 cos_a = cos(angle)
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
107 sin_a = sin(angle)
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
108 for i in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
109 lines[i] = data[i]
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
110 lines[i+4] = data[i+8]
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
111 for i in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
112 data[ i] = cos_a * lines[i] + sin_a * lines[4+i]
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
113 data[8+i] = -sin_a * lines[i] + cos_a * lines[4+i]
28
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
114
f405b947624d Massive sprite updating/matrix handling optimizations
Thibaut Girka <thib@sitedethib.com>
parents: 4
diff changeset
115
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
116 cdef void rotate_z(Matrix *mat, float angle) nogil:
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
117 cdef float cos_a, sin_a
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
118 cdef float lines[8]
435
878273a984c4 Improve Matrix representation, using float[16] instead of imbricated python lists.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 424
diff changeset
119
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
120 data = <float*>mat
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
121 cos_a = cos(angle)
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
122 sin_a = sin(angle)
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
123 for i in range(8):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
124 lines[i] = data[i]
590
e15672733c93 Switch to Python 3.x instead of 2.7.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 527
diff changeset
125 for i in range(4):
523
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
126 data[ i] = cos_a * lines[i] - sin_a * lines[4+i]
6e3b3d5d4691 Make matrix a struct.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 493
diff changeset
127 data[4+i] = sin_a * lines[i] + cos_a * lines[4+i]