1 | // %flair:license{
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2 | // This file is part of the Flair framework distributed under the
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3 | // CECILL-C License, Version 1.0.
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4 | // %flair:license}
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5 | // created: 2013/05/02
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6 | // filename: Vector2D.cpp
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7 | //
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8 | // author: Guillaume Sanahuja
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9 | // Copyright Heudiasyc UMR UTC/CNRS 7253
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10 | //
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11 | // version: $Id: $
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12 | //
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13 | // purpose: Class defining a 2D vector
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14 | //
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15 | //
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16 | /*********************************************************************/
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17 |
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18 | #include "Vector2D.h"
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19 | #include "Euler.h"
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20 | #include <math.h>
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21 |
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22 | namespace flair { namespace core {
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23 |
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24 | Vector2D::Vector2D(float inX,float inY): x(inX),y(inY) {
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25 | }
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26 |
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27 | Vector2D::~Vector2D() {
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28 |
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29 | }
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30 |
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31 | Vector2D &Vector2D::operator=(const Vector2D &vector) {
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32 | x=vector.x;
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33 | y=vector.y;
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34 | return (*this);
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35 | }
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36 |
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37 | Vector2D operator+ (const Vector2D &vectorA,const Vector2D &vectorB) {
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38 | return Vector2D(vectorA.x + vectorB.x,vectorA.y + vectorB.y);
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39 | }
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40 |
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41 | Vector2D operator- (const Vector2D &vectorA,const Vector2D &vectorB) {
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42 | return Vector2D(vectorA.x - vectorB.x,vectorA.y - vectorB.y);
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43 | }
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44 |
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45 | Vector2D operator/ (const Vector2D &vector, float coeff) {
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46 | if(coeff!=0) {
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47 | return Vector2D(vector.x/ coeff,vector.y/ coeff);
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48 | } else {
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49 | return Vector2D(0,0);
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50 | }
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51 | }
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52 |
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53 | Vector2D operator * (const Vector2D &vector, float coeff) {
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54 | return Vector2D(vector.x * coeff,vector.y * coeff);
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55 | }
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56 |
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57 | Vector2D operator * (float coeff,const Vector2D &vector) {
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58 | return Vector2D(vector.x * coeff,vector.y * coeff);
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59 | }
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60 |
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61 | void Vector2D::Rotate(float value) {
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62 | float xTmp;
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63 | xTmp=x*cosf(value)-y*sinf(value);
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64 | y=x*sinf(value)+y*cosf(value);
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65 | x=xTmp;
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66 | }
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67 |
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68 | void Vector2D::RotateDeg(float value) {
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69 | Rotate(Euler::ToRadian(value));
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70 | }
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71 |
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72 | float Vector2D::GetNorm(void) const {
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73 | return sqrt(x*x+y*y);
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74 | }
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75 |
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76 | void Vector2D::Normalize(void) {
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77 | float n=GetNorm();
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78 | if(n!=0) {
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79 | x=x/n;
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80 | y=y/n;
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81 | }
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82 | }
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83 |
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84 | void Vector2D::Saturate(Vector2D min,Vector2D max) {
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85 | if(x<min.x) x=min.x;
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86 | if(x>max.x) x=max.x;
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87 |
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88 | if(y<min.y) y=min.y;
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89 | if(y>max.y) y=max.y;
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90 | }
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91 |
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92 | void Vector2D::Saturate(float min,float max) {
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93 | Saturate(Vector2D(min,min),Vector2D(max,max));
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94 | }
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95 |
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96 | void Vector2D::Saturate(const Vector2D &value) {
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97 | float x=fabs(value.x);
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98 | float y=fabs(value.y);
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99 | Saturate(Vector2D(-x,-y),Vector2D(x,y));
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100 | }
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101 |
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102 | void Vector2D::Saturate(float value) {
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103 | float sat=fabs(value);
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104 | Saturate(Vector2D(-sat,-sat),Vector2D(sat,sat));
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105 | }
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106 |
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107 | } // end namespace core
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108 | } // end namespace flair
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