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source: orxonox.OLD/branches/heathaze/src/lib/math/vector.cc @ 9940

Last change on this file since 9940 was 9110, checked in by bensch, 18 years ago

orxonox/trunk: merged the Presentation back

File size: 1.5 KB
Line 
1/*
2   orxonox - the future of 3D-vertical-scrollers
3
4   Copyright (C) 2004 orx
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   ### File Specific:
12   main-programmer: Christian Meyer
13   co-programmer: Patrick Boenzli : Vector::scale()
14                                    Vector::abs()
15
16   Quaternion code borrowed from an Gamasutra article by Nick Bobick and Ken Shoemake
17
18   2005-06-02: Benjamin Grauer: speed up, and new Functionality to Vector (mostly inline now)
19*/
20
21#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_MATH
22
23#include "vector.h"
24#ifdef DEBUG
25  #include "debug.h"
26#else
27  #include <stdio.h>
28  #define PRINT(x) printf
29#endif
30
31
32/////////////
33/* VECTORS */
34/////////////
35/**
36 *  returns the this-vector normalized to length 1.0
37 * @todo there is some error in this function, that i could not resolve. it just does not, what it is supposed to do.
38 */
39Vector Vector::getNormalized() const
40{
41  float length = this->len();
42  if (unlikely(length == 0.0))
43    return *this;
44  else
45    return (*this / length);
46}
47
48/**
49 *  Vector is looking in the positive direction on all axes after this
50*/
51Vector Vector::abs()
52{
53  Vector v(fabs(x), fabs(y), fabs(z));
54  return v;
55}
56
57
58
59/**
60 *  Outputs the values of the Vector
61 */
62void Vector::debug() const
63{
64  PRINT(0)("x: %f; y: %f; z: %f", x, y, z);
65  PRINT(0)(" lenght: %f", len());
66  PRINT(0)("\n");
67}
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