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1 | /* |
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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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12 | main-programmer: Benjamin Grauer |
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13 | co-programmer: Patrick Boenzli : Vector2D::scale() |
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14 | Vector2D::abs() |
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15 | |
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16 | Benjamin Grauer: port to Vector2D |
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17 | */ |
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18 | |
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19 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_MATH |
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20 | |
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21 | #include "vector2D.h" |
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22 | #ifdef DEBUG |
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23 | #include "debug.h" |
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24 | #else |
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25 | #include <stdio.h> |
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26 | #define PRINT(x) printf |
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27 | #endif |
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28 | |
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29 | |
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30 | |
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31 | ///////////// |
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32 | /* VECTORS */ |
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33 | ///////////// |
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34 | /** |
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35 | * returns the this-vector normalized to length 1.0 |
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36 | * @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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37 | */ |
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38 | Vector2D Vector2D::getNormalized() const |
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39 | { |
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40 | float l = this->len(); |
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41 | if(unlikely(l == 1.0 || l == 0.0)) |
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42 | return *this; |
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43 | else |
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44 | return (*this / l); |
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45 | } |
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46 | |
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47 | /** |
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48 | * Vector2D is looking in the positive direction on all axes after this |
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49 | */ |
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50 | Vector2D Vector2D::abs() |
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51 | { |
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52 | Vector2D v(fabs(x), fabs(y)); |
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53 | return v; |
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54 | } |
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55 | |
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56 | |
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57 | |
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58 | /** |
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59 | * Outputs the values of the Vector2D |
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60 | */ |
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61 | void Vector2D::debug() const |
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62 | { |
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63 | PRINT(0)("x: %f; y: %f", x, y); |
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64 | PRINT(0)(" lenght: %f", len()); |
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65 | PRINT(0)("\n"); |
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66 | } |
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