gemath 0.1.0

Type-safe game math with type-level units/spaces, typed angles, and explicit fallible ops (plus optional geometry/collision).
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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170

//! `mint` conversions (feature-gated).
//!
//! Enable via `features = ["mint"]`.

use crate::{mat2::Mat2, mat3::Mat3, mat4::Mat4, quat::Quat, vec2::Vec2, vec3::Vec3, vec4::Vec4};

use mint::{
    ColumnMatrix2, ColumnMatrix3, ColumnMatrix4, IntoMint, Quaternion, Vector2, Vector3, Vector4,
};

// --- Vec conversions ---

impl<Unit: Copy, Space: Copy> From<Vector2<f32>> for Vec2<Unit, Space> {
    #[inline]
    fn from(v: Vector2<f32>) -> Self {
        Self::new(v.x, v.y)
    }
}

impl<Unit: Copy, Space: Copy> From<Vec2<Unit, Space>> for Vector2<f32> {
    #[inline]
    fn from(v: Vec2<Unit, Space>) -> Self {
        Self { x: v.x, y: v.y }
    }
}

impl<Unit: Copy, Space: Copy> IntoMint for Vec2<Unit, Space> {
    type MintType = Vector2<f32>;
}

impl<Unit: Copy, Space: Copy> From<Vector3<f32>> for Vec3<Unit, Space> {
    #[inline]
    fn from(v: Vector3<f32>) -> Self {
        Self::new(v.x, v.y, v.z)
    }
}

impl<Unit: Copy, Space: Copy> From<Vec3<Unit, Space>> for Vector3<f32> {
    #[inline]
    fn from(v: Vec3<Unit, Space>) -> Self {
        Self { x: v.x, y: v.y, z: v.z }
    }
}

impl<Unit: Copy, Space: Copy> IntoMint for Vec3<Unit, Space> {
    type MintType = Vector3<f32>;
}

impl<Unit: Copy, Space: Copy> From<Vector4<f32>> for Vec4<Unit, Space> {
    #[inline]
    fn from(v: Vector4<f32>) -> Self {
        Self::new(v.x, v.y, v.z, v.w)
    }
}

impl<Unit: Copy, Space: Copy> From<Vec4<Unit, Space>> for Vector4<f32> {
    #[inline]
    fn from(v: Vec4<Unit, Space>) -> Self {
        Self {
            x: v.x,
            y: v.y,
            z: v.z,
            w: v.w,
        }
    }
}

impl<Unit: Copy, Space: Copy> IntoMint for Vec4<Unit, Space> {
    type MintType = Vector4<f32>;
}

// --- Mat conversions (column-major) ---

impl<Unit: Copy, Space: Copy> From<ColumnMatrix2<f32>> for Mat2<Unit, Space> {
    #[inline]
    fn from(m: ColumnMatrix2<f32>) -> Self {
        Self::new(m.x.into(), m.y.into())
    }
}

impl<Unit: Copy, Space: Copy> From<Mat2<Unit, Space>> for ColumnMatrix2<f32> {
    #[inline]
    fn from(m: Mat2<Unit, Space>) -> Self {
        Self {
            x: m.x_col.into(),
            y: m.y_col.into(),
        }
    }
}

impl<Unit: Copy, Space: Copy> IntoMint for Mat2<Unit, Space> {
    type MintType = ColumnMatrix2<f32>;
}

impl<Unit: Copy, Space: Copy> From<ColumnMatrix3<f32>> for Mat3<Unit, Space> {
    #[inline]
    fn from(m: ColumnMatrix3<f32>) -> Self {
        Self::new(m.x.into(), m.y.into(), m.z.into())
    }
}

impl<Unit: Copy, Space: Copy> From<Mat3<Unit, Space>> for ColumnMatrix3<f32> {
    #[inline]
    fn from(m: Mat3<Unit, Space>) -> Self {
        Self {
            x: m.x_col.into(),
            y: m.y_col.into(),
            z: m.z_col.into(),
        }
    }
}

impl<Unit: Copy, Space: Copy> IntoMint for Mat3<Unit, Space> {
    type MintType = ColumnMatrix3<f32>;
}

impl<Unit: Copy, Space: Copy> From<ColumnMatrix4<f32>> for Mat4<Unit, Space> {
    #[inline]
    fn from(m: ColumnMatrix4<f32>) -> Self {
        Self::new(m.x.into(), m.y.into(), m.z.into(), m.w.into())
    }
}

impl<Unit: Copy, Space: Copy> From<Mat4<Unit, Space>> for ColumnMatrix4<f32> {
    #[inline]
    fn from(m: Mat4<Unit, Space>) -> Self {
        Self {
            x: m.x_col.into(),
            y: m.y_col.into(),
            z: m.z_col.into(),
            w: m.w_col.into(),
        }
    }
}

impl<Unit: Copy, Space: Copy> IntoMint for Mat4<Unit, Space> {
    type MintType = ColumnMatrix4<f32>;
}

// --- Quat conversions ---
//
// mint uses scalar+vector parts: Quaternion { s, v }, where:
// - s = scalar component
// - v = vector component

impl<Unit: Copy, Space: Copy> From<Quaternion<f32>> for Quat<Unit, Space> {
    #[inline]
    fn from(q: Quaternion<f32>) -> Self {
        Self::new(q.v.x, q.v.y, q.v.z, q.s)
    }
}

impl<Unit: Copy, Space: Copy> From<Quat<Unit, Space>> for Quaternion<f32> {
    #[inline]
    fn from(q: Quat<Unit, Space>) -> Self {
        Self {
            s: q.w,
            v: Vector3 {
                x: q.x,
                y: q.y,
                z: q.z,
            },
        }
    }
}

impl<Unit: Copy, Space: Copy> IntoMint for Quat<Unit, Space> {
    type MintType = Quaternion<f32>;
}