-
Notifications
You must be signed in to change notification settings - Fork 0
/
vector2.cpp
93 lines (71 loc) · 1.8 KB
/
vector2.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
//
// Created by awbrenn on 3/11/16.
//
#include "vector2.h"
#include <cmath>
vector2::vector2(float x, float y) {
this->x = x;
this->y = y;
}
vector2::vector2(const vector2 &src) {
this->x = src.x;
this->y = src.y;
}
const vector2 &vector2::operator=(const vector2 &rhs) {
this->x = rhs.x;
this->y = rhs.y;
return *this;
}
vector2::~vector2() { }
vector2 vector2::operator+(const vector2 &rhs) const {
return vector2(this->x + rhs.x, this->y + rhs.y);
}
vector2 vector2::operator-(const vector2 &rhs) const {
return vector2(this->x - rhs.x, this->y - rhs.y);
}
vector2 vector2::operator*(const vector2 &rhs) const {
return vector2(this->x * rhs.x, this->y * rhs.y);
}
vector2 vector2::operator/(const vector2 &rhs) const {
return vector2(this->x / rhs.x, this->y / rhs.y);
}
//vector2 vector2::operator/(const float &constant) const {
// return vector2(this->x / constant, this->y / constant);
//}
const vector2 &vector2::operator+=(const vector2 &rhs) {
this->x += rhs.x;
this->y += rhs.y;
return *this;
}
const vector2 &vector2::operator-=(const vector2 &rhs) {
this->x -= rhs.x;
this->y -= rhs.y;
return *this;
}
const vector2 &vector2::operator*=(const vector2 &rhs) {
this->x *= rhs.x;
this->y *= rhs.y;
return *this;
}
const vector2 &vector2::operator/=(const vector2 &rhs) {
this->x /= rhs.x;
this->y /= rhs.y;
return *this;
}
float vector2::length() const {
return sqrtf(x * x + y * y);
}
vector2 vector2::scale(const float factor) {
vector2 result;
result.x = this->x * factor;
result.y = this->y * factor;
return result;
}
float vector2::dot(const vector2 &rhs) {
return ((this->x * rhs.x) + (this->y * rhs.y));
}
vector2 vector2::unit() const {
vector2 toReturn = *this;
toReturn = toReturn.scale(1 / toReturn.length());
return toReturn;
}