source: flair-src/trunk/lib/FlairCore/src/Vector2D.cpp @ 161

Last change on this file since 161 was 161, checked in by Sanahuja Guillaume, 5 years ago

modifs

File size: 2.7 KB
Line 
1// %flair:license{
2// This file is part of the Flair framework distributed under the
3// CECILL-C License, Version 1.0.
4// %flair:license}
5//  created:    2013/05/02
6//  filename:   Vector2D.cpp
7//
8//  author:     Guillaume Sanahuja
9//              Copyright Heudiasyc UMR UTC/CNRS 7253
10//
11//  version:    $Id: $
12//
13//  purpose:    Class defining a 2D vector
14//
15//
16/*********************************************************************/
17
18#include "Vector2D.h"
19#include "Euler.h"
20#include <math.h>
21
22namespace flair {
23namespace core {
24
25Vector2D::Vector2D(float inX, float inY) : x(inX), y(inY) {}
26
27Vector2D::~Vector2D() {}
28
29Vector2D &Vector2D::operator=(const Vector2D &vector) {
30  x = vector.x;
31  y = vector.y;
32  return (*this);
33}
34
35Vector2D &Vector2D::operator+=(const Vector2D &vector) {
36  x += vector.x;
37  y += vector.y;
38  return (*this);
39}
40
41Vector2D &Vector2D::operator-=(const Vector2D &vector) {
42  x -= vector.x;
43  y -= vector.y;
44  return (*this);
45}
46
47Vector2D operator+(const Vector2D &vectorA, const Vector2D &vectorB) {
48  return Vector2D(vectorA.x + vectorB.x, vectorA.y + vectorB.y);
49}
50
51Vector2D operator-(const Vector2D &vectorA, const Vector2D &vectorB) {
52  return Vector2D(vectorA.x - vectorB.x, vectorA.y - vectorB.y);
53}
54
55Vector2D operator-(const Vector2D &vectorA) {
56 return Vector2D(-vectorA.x, -vectorA.y);
57}
58
59Vector2D operator/(const Vector2D &vector, float coeff) {
60  if (coeff != 0) {
61    return Vector2D(vector.x / coeff, vector.y / coeff);
62  } else {
63    return Vector2D(0, 0);
64  }
65}
66
67Vector2D operator*(const Vector2D &vector, float coeff) {
68  return Vector2D(vector.x * coeff, vector.y * coeff);
69}
70
71Vector2D operator*(float coeff, const Vector2D &vector) {
72  return Vector2D(vector.x * coeff, vector.y * coeff);
73}
74
75void Vector2D::Rotate(float value) {
76  float xTmp;
77  xTmp = x * cosf(value) - y * sinf(value);
78  y = x * sinf(value) + y * cosf(value);
79  x = xTmp;
80}
81
82void Vector2D::RotateDeg(float value) { Rotate(Euler::ToRadian(value)); }
83
84float Vector2D::GetNorm(void) const { return sqrt(x * x + y * y); }
85
86void Vector2D::Normalize(void) {
87  float n = GetNorm();
88  if (n != 0) {
89    x = x / n;
90    y = y / n;
91  }
92}
93
94void Vector2D::Saturate(Vector2D min, Vector2D max) {
95  if (x < min.x)
96    x = min.x;
97  if (x > max.x)
98    x = max.x;
99
100  if (y < min.y)
101    y = min.y;
102  if (y > max.y)
103    y = max.y;
104}
105
106void Vector2D::Saturate(float min, float max) {
107  Saturate(Vector2D(min, min), Vector2D(max, max));
108}
109
110void Vector2D::Saturate(const Vector2D &value) {
111  float x = fabs(value.x);
112  float y = fabs(value.y);
113  Saturate(Vector2D(-x, -y), Vector2D(x, y));
114}
115
116void Vector2D::Saturate(float value) {
117  float sat = fabs(value);
118  Saturate(Vector2D(-sat, -sat), Vector2D(sat, sat));
119}
120
121} // end namespace core
122} // end namespace flair
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