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

use mint::{Quaternion, Vector3};
use serde::{Deserialize, Serialize};

/// A box
#[derive(Debug, Clone, Copy, PartialEq, Serialize, Deserialize)]
pub struct Box {
	pub center: Vector3<f32>,
	pub size: Vector3<f32>,
}

/// Simple transform
#[derive(Default, Debug, Clone, Copy, PartialEq, Serialize, Deserialize)]
pub struct Transform {
	pub position: Option<Vector3<f32>>,
	pub rotation: Option<Quaternion<f32>>,
	pub scale: Option<Vector3<f32>>,
}
impl Transform {
	pub const fn none() -> Self {
		Transform {
			position: None,
			rotation: None,
			scale: None,
		}
	}
	pub const fn identity() -> Self {
		Transform {
			position: Some(Vector3 {
				x: 0.0,
				y: 0.0,
				z: 0.0,
			}),
			rotation: Some(Quaternion {
				v: Vector3 {
					x: 0.0,
					y: 0.0,
					z: 0.0,
				},
				s: 1.0,
			}),
			scale: Some(Vector3 {
				x: 1.0,
				y: 1.0,
				z: 1.0,
			}),
		}
	}

	pub fn from_position(position: impl Into<Vector3<f32>>) -> Self {
		Transform {
			position: Some(position.into()),
			..Default::default()
		}
	}
	pub fn from_rotation(rotation: impl Into<Quaternion<f32>>) -> Self {
		Transform {
			rotation: Some(rotation.into()),
			..Default::default()
		}
	}
	pub fn from_scale(scale: impl Into<Vector3<f32>>) -> Self {
		Transform {
			scale: Some(scale.into()),
			..Default::default()
		}
	}

	pub fn from_position_rotation(
		position: impl Into<Vector3<f32>>,
		rotation: impl Into<Quaternion<f32>>,
	) -> Self {
		Transform {
			position: Some(position.into()),
			rotation: Some(rotation.into()),
			..Default::default()
		}
	}
	pub fn from_rotation_scale(
		rotation: impl Into<Quaternion<f32>>,
		scale: impl Into<Vector3<f32>>,
	) -> Self {
		Transform {
			rotation: Some(rotation.into()),
			scale: Some(scale.into()),
			..Default::default()
		}
	}

	pub fn from_position_scale(
		position: impl Into<Vector3<f32>>,
		scale: impl Into<Vector3<f32>>,
	) -> Self {
		Transform {
			position: Some(position.into()),
			scale: Some(scale.into()),
			..Default::default()
		}
	}

	pub fn from_position_rotation_scale(
		position: impl Into<Vector3<f32>>,
		rotation: impl Into<Quaternion<f32>>,
		scale: impl Into<Vector3<f32>>,
	) -> Self {
		Transform {
			position: Some(position.into()),
			rotation: Some(rotation.into()),
			scale: Some(scale.into()),
		}
	}
}