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source: orxonox.OLD/trunk/src/lib/math/vector.cc @ 10626

Last change on this file since 10626 was 9110, checked in by bensch, 18 years ago

orxonox/trunk: merged the Presentation back

File size: 1.5 KB
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[4578]1/*
[2043]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:
[4578]12   main-programmer: Christian Meyer
[2551]13   co-programmer: Patrick Boenzli : Vector::scale()
14                                    Vector::abs()
[4578]15
[2190]16   Quaternion code borrowed from an Gamasutra article by Nick Bobick and Ken Shoemake
[5420]17
18   2005-06-02: Benjamin Grauer: speed up, and new Functionality to Vector (mostly inline now)
[2043]19*/
20
[3590]21#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_MATH
[2043]22
23#include "vector.h"
[5662]24#ifdef DEBUG
[5672]25  #include "debug.h"
[5662]26#else
[5672]27  #include <stdio.h>
28  #define PRINT(x) printf
[5662]29#endif
[2043]30
31
[4477]32/////////////
33/* VECTORS */
34/////////////
[2043]35/**
[4836]36 *  returns the this-vector normalized to length 1.0
[4966]37 * @todo there is some error in this function, that i could not resolve. it just does not, what it is supposed to do.
[5420]38 */
[4372]39Vector Vector::getNormalized() const
[2551]40{
[9110]41  float length = this->len();
42  if (unlikely(length == 0.0))
[4966]43    return *this;
44  else
[9110]45    return (*this / length);
[2551]46}
47
[3449]48/**
[4836]49 *  Vector is looking in the positive direction on all axes after this
[4477]50*/
[4578]51Vector Vector::abs()
[4477]52{
53  Vector v(fabs(x), fabs(y), fabs(z));
54  return v;
55}
56
57
58
59/**
[4836]60 *  Outputs the values of the Vector
[5420]61 */
[4746]62void Vector::debug() const
[3541]63{
64  PRINT(0)("x: %f; y: %f; z: %f", x, y, z);
[4987]65  PRINT(0)(" lenght: %f", len());
[3541]66  PRINT(0)("\n");
67}
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