source: flair-src/trunk/lib/FlairCore/src/Vector2D.cpp@ 15

Last change on this file since 15 was 15, checked in by Bayard Gildas, 6 years ago

sources reformatted with flair-format-dir script

File size: 2.4 KB
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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 operator+(const Vector2D &vectorA, const Vector2D &vectorB) {
36 return Vector2D(vectorA.x + vectorB.x, vectorA.y + vectorB.y);
37}
38
39Vector2D operator-(const Vector2D &vectorA, const Vector2D &vectorB) {
40 return Vector2D(vectorA.x - vectorB.x, vectorA.y - vectorB.y);
41}
42
43Vector2D operator/(const Vector2D &vector, float coeff) {
44 if (coeff != 0) {
45 return Vector2D(vector.x / coeff, vector.y / coeff);
46 } else {
47 return Vector2D(0, 0);
48 }
49}
50
51Vector2D operator*(const Vector2D &vector, float coeff) {
52 return Vector2D(vector.x * coeff, vector.y * coeff);
53}
54
55Vector2D operator*(float coeff, const Vector2D &vector) {
56 return Vector2D(vector.x * coeff, vector.y * coeff);
57}
58
59void Vector2D::Rotate(float value) {
60 float xTmp;
61 xTmp = x * cosf(value) - y * sinf(value);
62 y = x * sinf(value) + y * cosf(value);
63 x = xTmp;
64}
65
66void Vector2D::RotateDeg(float value) { Rotate(Euler::ToRadian(value)); }
67
68float Vector2D::GetNorm(void) const { return sqrt(x * x + y * y); }
69
70void Vector2D::Normalize(void) {
71 float n = GetNorm();
72 if (n != 0) {
73 x = x / n;
74 y = y / n;
75 }
76}
77
78void Vector2D::Saturate(Vector2D min, Vector2D max) {
79 if (x < min.x)
80 x = min.x;
81 if (x > max.x)
82 x = max.x;
83
84 if (y < min.y)
85 y = min.y;
86 if (y > max.y)
87 y = max.y;
88}
89
90void Vector2D::Saturate(float min, float max) {
91 Saturate(Vector2D(min, min), Vector2D(max, max));
92}
93
94void Vector2D::Saturate(const Vector2D &value) {
95 float x = fabs(value.x);
96 float y = fabs(value.y);
97 Saturate(Vector2D(-x, -y), Vector2D(x, y));
98}
99
100void Vector2D::Saturate(float value) {
101 float sat = fabs(value);
102 Saturate(Vector2D(-sat, -sat), Vector2D(sat, sat));
103}
104
105} // end namespace core
106} // end namespace flair
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