oxihuman_morph/
sternocleidomastoid_morph.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3#![allow(dead_code)]
4
5pub struct ScmMorph {
6    pub definition: f32,
7    pub length: f32,
8    pub prominence: f32,
9}
10
11pub fn new_scm_morph() -> ScmMorph {
12    ScmMorph {
13        definition: 0.0,
14        length: 0.5,
15        prominence: 0.0,
16    }
17}
18
19pub fn scm_set_definition(m: &mut ScmMorph, v: f32) {
20    m.definition = v.clamp(0.0, 1.0);
21}
22
23pub fn scm_is_defined(m: &ScmMorph) -> bool {
24    m.definition > 0.4
25}
26
27pub fn scm_overall_weight(m: &ScmMorph) -> f32 {
28    (m.definition + m.prominence) * 0.5
29}
30
31pub fn scm_blend(a: &ScmMorph, b: &ScmMorph, t: f32) -> ScmMorph {
32    let t = t.clamp(0.0, 1.0);
33    ScmMorph {
34        definition: a.definition + (b.definition - a.definition) * t,
35        length: a.length + (b.length - a.length) * t,
36        prominence: a.prominence + (b.prominence - a.prominence) * t,
37    }
38}
39
40#[cfg(test)]
41mod tests {
42    use super::*;
43
44    #[test]
45    fn test_new_scm_morph() {
46        /* definition starts at 0 */
47        let m = new_scm_morph();
48        assert!((m.definition - 0.0).abs() < 1e-6);
49    }
50
51    #[test]
52    fn test_scm_set_definition() {
53        /* set definition */
54        let mut m = new_scm_morph();
55        scm_set_definition(&mut m, 0.5);
56        assert!((m.definition - 0.5).abs() < 1e-6);
57    }
58
59    #[test]
60    fn test_scm_is_defined_true() {
61        /* > 0.4 is defined */
62        let mut m = new_scm_morph();
63        scm_set_definition(&mut m, 0.6);
64        assert!(scm_is_defined(&m));
65    }
66
67    #[test]
68    fn test_scm_is_defined_false() {
69        /* 0 not defined */
70        let m = new_scm_morph();
71        assert!(!scm_is_defined(&m));
72    }
73
74    #[test]
75    fn test_scm_blend() {
76        /* blend midpoint */
77        let a = new_scm_morph();
78        let mut b = new_scm_morph();
79        b.definition = 1.0;
80        let mid = scm_blend(&a, &b, 0.5);
81        assert!((mid.definition - 0.5).abs() < 1e-6);
82    }
83}
oxihuman_morph/sternocleidomastoid_morph.rs

oxihuman_morph/
sternocleidomastoid_morph.rs
