rustbot 0.2.1

My package for aimbot calculations / vector math
Documentation 
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134

use libm;
use std::ops::{Add, AddAssign, Mul, MulAssign, Sub, SubAssign};

#[derive(Default ,Copy, Clone)]
pub struct Vec3 {
    pub x: f32,
    pub y: f32,
    pub z: f32,
}
#[derive(Default ,Copy, Clone)]
pub struct Vec4
{
    pub x: f32,
    pub y: f32,
    pub z: f32,
    pub w: f32,
}

impl Vec3 {
    pub fn new(x: f32, y: f32, z: f32) -> Self {
        Self {
            x,
            y,
            z,
        }
    }
    pub const fn new_const(x: f32, y: f32, z: f32) -> Self {
        Self {
            x,
            y,
            z,
        }
    }
    fn calc_length(&mut self) -> f32{
        libm::sqrtf(self.x * self.x + self.y * self.y + self.z * self.z)
    }
    pub fn calc_distance(&mut self, target: Vec3) -> f32 {
        self.x -= target.x;
        self.y -= target.y;
        self.z -= target.z;
        self.calc_length()
    }
    pub fn absf(&mut self) {
	self.x = libm::fabsf(self.x);
	self.y = libm::fabsf(self.y);
	self.z = libm::fabsf(self.z);
    }
}
impl Add for Vec3 {
    type Output = Self;
    fn add(self, other: Self) -> Self {
        Vec3 {
            x: self.x + other.x,
            y: self.y + other.y,
            z: self.z + other.z,
        }        
    }
}
impl AddAssign for Vec3 {
    fn add_assign(&mut self, other: Self) {
        self.x += other.x;
        self.y += other.y;
        self.z += other.z;   
    }
}
impl Sub for Vec3 {
    type Output = Self;
    
    fn sub(self, other: Self) -> Self {
        Vec3 {
            x: self.x - other.x,
            y: self.y - other.y,
            z: self.z - other.z,
        }        
    }
}
impl SubAssign for Vec3 {
    fn sub_assign(&mut self, other: Self) {
        self.x -= other.x;
        self.y -= other.y;
        self.z -= other.z;   
    }
}
impl Mul for Vec3 {
    type Output = Self;

    fn mul(self, other: Self) -> Self {
        Vec3 {
            x: self.x * other.x,
            y: self.y * other.y,
            z: self.z * other.z,
        }        
    }
}
impl MulAssign for Vec3 {
    fn mul_assign(&mut self, other: Self) {
        self.x *= other.x;
        self.y *= other.y;
        self.z *= other.z;    
    }
}
const PI: f32 = 3.14159;
fn radians_to_degrees(radians_angle: f32) -> f32 {
    radians_angle * (180.0 / PI)
}
pub fn calculate_angle(mut origin: Vec3, target: Vec3) -> Vec3 {
    let mut results: Vec3 = Vec3::new(0.0,0.0,0.0);
    results.x = radians_to_degrees(-(libm::atan2f(origin.x - target.x , origin.y - target.y)));
    results.y = radians_to_degrees(libm::asinf((target.z - origin.z) / origin.calc_distance(target.clone())));
    return results
}
pub fn world_to_screen(pos: Vec3, matrix: [f32; 16]) -> Vec3 {
    let mut camera_coords: Vec4 = Vec4 {
	x: 0.0,
	y: 0.0,
	z: 0.0,
	w: 0.0,
    };
    camera_coords.x = pos.x * matrix[0] + pos.y * matrix[4] + pos.z * matrix[8] + matrix[12];
    camera_coords.y = pos.x * matrix[1] + pos.y * matrix[5] + pos.z * matrix[9] + matrix[13];
    camera_coords.z = pos.x * matrix[2] + pos.y * matrix[6] + pos.z * matrix[10] + matrix[14];
    camera_coords.w = pos.x * matrix[3] + pos.y * matrix[7] + pos.z * matrix[11] + matrix[15];
    // if off screen return blank vec
    if camera_coords.w < 0.1 {
	return Vec3::new(0.0, 0.0, 0.0);
    }

    let mut ndc = Vec3::new(0.0, 0.0, 0.0);
    ndc.x = camera_coords.x / camera_coords.w;
    ndc.y = camera_coords.y / camera_coords.w;
    ndc.z = camera_coords.z / camera_coords.w;
    
    return ndc 
}