Last change
on this file since 7645 was
6617,
checked in by bensch, 19 years ago
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trunk: split Rotation/Line/Quaternion/Plane(Rectangle) into seperate files
|
File size:
1.5 KB
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Rev | Line | |
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[4578] | 1 | /* |
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[2043] | 2 | orxonox - the future of 3D-vertical-scrollers |
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| 3 | |
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| 4 | Copyright (C) 2004 orx |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | ### File Specific: |
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[4578] | 12 | main-programmer: Christian Meyer |
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[2551] | 13 | co-programmer: Patrick Boenzli : Vector::scale() |
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| 14 | Vector::abs() |
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[4578] | 15 | |
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[2190] | 16 | Quaternion code borrowed from an Gamasutra article by Nick Bobick and Ken Shoemake |
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[5420] | 17 | |
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| 18 | 2005-06-02: Benjamin Grauer: speed up, and new Functionality to Vector (mostly inline now) |
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[2043] | 19 | */ |
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| 20 | |
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[3590] | 21 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_MATH |
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[2043] | 22 | |
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| 23 | #include "vector.h" |
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[5662] | 24 | #ifdef DEBUG |
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[5672] | 25 | #include "debug.h" |
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[5662] | 26 | #else |
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[5672] | 27 | #include <stdio.h> |
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| 28 | #define PRINT(x) printf |
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[5662] | 29 | #endif |
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[2043] | 30 | |
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| 31 | using namespace std; |
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| 32 | |
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[4477] | 33 | ///////////// |
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| 34 | /* VECTORS */ |
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| 35 | ///////////// |
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[2043] | 36 | /** |
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[4836] | 37 | * returns the this-vector normalized to length 1.0 |
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[4966] | 38 | * @todo there is some error in this function, that i could not resolve. it just does not, what it is supposed to do. |
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[5420] | 39 | */ |
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[4372] | 40 | Vector Vector::getNormalized() const |
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[2551] | 41 | { |
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[4966] | 42 | float l = this->len(); |
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| 43 | if(unlikely(l == 1.0 || l == 0.0)) |
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| 44 | return *this; |
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| 45 | else |
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| 46 | return (*this / l); |
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[2551] | 47 | } |
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| 48 | |
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[3449] | 49 | /** |
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[4836] | 50 | * Vector is looking in the positive direction on all axes after this |
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[4477] | 51 | */ |
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[4578] | 52 | Vector Vector::abs() |
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[4477] | 53 | { |
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| 54 | Vector v(fabs(x), fabs(y), fabs(z)); |
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| 55 | return v; |
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| 56 | } |
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| 57 | |
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| 58 | |
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| 59 | |
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| 60 | /** |
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[4836] | 61 | * Outputs the values of the Vector |
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[5420] | 62 | */ |
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[4746] | 63 | void Vector::debug() const |
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[3541] | 64 | { |
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| 65 | PRINT(0)("x: %f; y: %f; z: %f", x, y, z); |
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[4987] | 66 | PRINT(0)(" lenght: %f", len()); |
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[3541] | 67 | PRINT(0)("\n"); |
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| 68 | } |
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