Mercurial > fife-parpg

annotate engine/python/fife/extensions/fife_math.py @ 640:855ad500f991

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
* Added the ability to set/get the video driver used using the settings interface. Note that the default driver for the OS will be used unless explicitly specified.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 07 Oct 2010 18:37:02 +0000
parents c0c3f64bfc2d
children
rev   line source
492
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
1 # -*- coding: utf-8 -*-
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
2
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
3 # ####################################################################
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
4 # Copyright (C) 2005-2010 by the FIFE team
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
5 # http://www.fifengine.net
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
6 # This file is part of FIFE.
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
7 #
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
8 # FIFE is free software; you can redistribute it and/or
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
9 # modify it under the terms of the GNU Lesser General Public
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
10 # License as published by the Free Software Foundation; either
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
11 # version 2.1 of the License, or (at your option) any later version.
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
12 #
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
13 # This library is distributed in the hope that it will be useful,
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
16 # Lesser General Public License for more details.
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
17 #
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
18 # You should have received a copy of the GNU Lesser General Public
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
19 # License along with this library; if not, write to the
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
20 # Free Software Foundation, Inc.,
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
22 # ####################################################################
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
23
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
24 """
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
25 Math Library
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
26 ==================================
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
27
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
28 This is a collection of useful 2D math functions/classes.
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
29 """
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
30
495
ae9f5383f5b1 Added a new log module called Script. This should be used by the python modules.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 494
diff changeset
31 from fife import fife
ae9f5383f5b1 Added a new log module called Script. This should be used by the python modules.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 494
diff changeset
32 import math
492
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
33
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
34 def normalize(vector):
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
35 """
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
36 Helper function to normalize a 2D vector
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
37
494
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
38 @param vector: a L{fife.DoublePoint} to be normalized
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
39 @type vector: L{fife.DoublePoint}
492
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
40
494
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
41 @return: A normalized L{fife.DoublePoint}
492
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
42 """
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
43 norm = fife.DoublePoint(0,0)
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
44
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
45 invLength = 1.0/vector.length()
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
46 if invLength > 1e-06:
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
47 norm.x = vector.x * invLength;
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
48 norm.y = vector.y * invLength;
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
49 else:
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
50 norm.x = 0
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
51 norm.y = 0
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
52
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
53 return norm
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
54
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
55 def rotatePoint(origin, point, angle):
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
56 """
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
57 Rotates a point around the specified origin.
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
58
495
ae9f5383f5b1 Added a new log module called Script. This should be used by the python modules.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 494
diff changeset
59 @param origin: A point specifying the origin.
494
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
60 @type origin: L{fife.DoublePoint}
495
ae9f5383f5b1 Added a new log module called Script. This should be used by the python modules.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 494
diff changeset
61 @param point: The point to be rotated.
494
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
62 @type point: L{fife.DoublePoint}
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
63 @param angle: The angle in which to rotate the point.
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
64 @type angle: C{int} or C{float}
492
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
65
495
ae9f5383f5b1 Added a new log module called Script. This should be used by the python modules.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 494
diff changeset
66 @return: The rotated point.
494
e241d7553496 Fixing the epydoc markup. Did some more commenting.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 492
diff changeset
67 @rtype: L{fife.DoublePoint}
492
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
68 """
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
69 newp = fife.DoublePoint(0,0)
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
70
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
71 theta = (angle * math.pi)/180
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
72
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
73 costheta = math.cos(theta)
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
74 sintheta = math.sin(theta)
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
75
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
76 x = point.x - origin.x
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
77 y = point.y - origin.y
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
78
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
79 newp.x = costheta * x - sintheta * y
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
80 newp.y = sintheta * x + costheta * y
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
81
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
82 return newp
16ceb3228324 Moved the SoundManager and the 2D math function (helpers) from the shooter demo to the fife extensions.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
83
622
c0c3f64bfc2d * Templatized Rect to extend it's functionality beyond integers
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 495
diff changeset
84 __all__ = ['normalize','rotatePoint']