oxihuman_morph/
eye_spacing_morph.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3#![allow(dead_code)]
4
5pub struct EyeSpacingMorph {
6    pub distance: f32,
7    pub convergence: f32,
8}
9
10pub fn new_eye_spacing_morph() -> EyeSpacingMorph {
11    EyeSpacingMorph {
12        distance: 0.0,
13        convergence: 0.0,
14    }
15}
16
17pub fn eye_spacing_set_distance(m: &mut EyeSpacingMorph, v: f32) {
18    m.distance = v.clamp(0.0, 1.0);
19}
20
21pub fn eye_spacing_is_wide(m: &EyeSpacingMorph) -> bool {
22    m.distance > 0.5
23}
24
25pub fn eye_spacing_overall_weight(m: &EyeSpacingMorph) -> f32 {
26    (m.distance.abs() + m.convergence.abs()) * 0.5
27}
28
29pub fn eye_spacing_blend(a: &EyeSpacingMorph, b: &EyeSpacingMorph, t: f32) -> EyeSpacingMorph {
30    let t = t.clamp(0.0, 1.0);
31    EyeSpacingMorph {
32        distance: a.distance + (b.distance - a.distance) * t,
33        convergence: a.convergence + (b.convergence - a.convergence) * t,
34    }
35}
36
37#[cfg(test)]
38mod tests {
39    use super::*;
40
41    #[test]
42    fn test_new_eye_spacing_morph() {
43        /* default distance is 0 */
44        let m = new_eye_spacing_morph();
45        assert_eq!(m.distance, 0.0);
46    }
47
48    #[test]
49    fn test_eye_spacing_set_distance() {
50        /* distance is set */
51        let mut m = new_eye_spacing_morph();
52        eye_spacing_set_distance(&mut m, 0.3);
53        assert!((m.distance - 0.3).abs() < 1e-6);
54    }
55
56    #[test]
57    fn test_eye_spacing_is_wide_false() {
58        /* not wide at default */
59        let m = new_eye_spacing_morph();
60        assert!(!eye_spacing_is_wide(&m));
61    }
62
63    #[test]
64    fn test_eye_spacing_is_wide_true() {
65        /* wide when distance > 0.5 */
66        let mut m = new_eye_spacing_morph();
67        m.distance = 0.6;
68        assert!(eye_spacing_is_wide(&m));
69    }
70
71    #[test]
72    fn test_eye_spacing_blend() {
73        /* blend at 1 returns b */
74        let a = new_eye_spacing_morph();
75        let b = EyeSpacingMorph {
76            distance: 1.0,
77            convergence: 1.0,
78        };
79        let r = eye_spacing_blend(&a, &b, 1.0);
80        assert!((r.distance - 1.0).abs() < 1e-6);
81    }
82}
oxihuman_morph/eye_spacing_morph.rs

oxihuman_morph/
eye_spacing_morph.rs
