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
94
95
96
97
98
99
|
extern crate rand;
use self::rand::distributions::Alphanumeric;
use self::rand::Rng;
use std::iter::repeat;
pub fn rand_name() -> String {
repeat(())
.map(|()| rand::thread_rng().sample(Alphanumeric))
.take(8)
.collect()
}
#[derive(Serialize, Deserialize, Debug, Clone, Default)]
pub struct Vector {
pub a: f64,
pub b: f64,
pub c: f64,
}
impl Vector {
pub fn new(v: (f64, f64, f64)) -> Vector {
Vector {
a: v.0,
b: v.1,
c: v.2,
}
}
pub fn distance_from(&self, other: Vector) -> f64 {
((self.a - other.a).powf(2.0) + (self.b - other.b).powf(2.0) + (self.c - other.c).powf(2.0))
.sqrt()
}
pub fn unitize(&self) -> Vector {
let denominator = self.magnitude();
Vector {
a: self.a / denominator,
b: self.b / denominator,
c: self.c / denominator,
}
}
pub fn magnitude(&self) -> f64 {
(self.a.powf(2.0) + self.b.powf(2.0) + self.c.powf(2.0)).sqrt()
}
}
impl std::fmt::Display for Vector {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "({:.2}, {:.2}, {:.2})", self.a, self.b, self.c)
}
}
impl std::ops::Add for Vector {
type Output = Vector;
fn add(self, other: Vector) -> Vector {
Vector {
a: self.a + other.a,
b: self.b + other.b,
c: self.c + other.c,
}
}
}
impl std::ops::Sub for Vector {
type Output = Vector;
fn sub(self, other: Vector) -> Vector {
Vector {
a: self.a - other.a,
b: self.b - other.b,
c: self.c - other.c,
}
}
}
impl std::ops::Mul<f64> for Vector {
type Output = Vector;
fn mul(self, other: f64) -> Vector {
Vector {
a: self.a * other,
b: self.b * other,
c: self.c * other,
}
}
}
impl std::ops::AddAssign for Vector {
fn add_assign(&mut self, other: Vector) {
*self = Vector {
a: self.a + other.a,
b: self.b + other.b,
c: self.c + other.c,
}
}
}
|
