oxihuman_morph/
muscle_definition_morph.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3#![allow(dead_code)]
4
5pub struct MuscleDefinitionMorph {
6    pub tone: f32,
7    pub vascularity: f32,
8    pub symmetry: f32,
9}
10
11pub fn new_muscle_definition_morph() -> MuscleDefinitionMorph {
12    MuscleDefinitionMorph {
13        tone: 0.0,
14        vascularity: 0.0,
15        symmetry: 1.0,
16    }
17}
18
19pub fn muscle_def_set_tone(m: &mut MuscleDefinitionMorph, v: f32) {
20    m.tone = v.clamp(0.0, 1.0);
21}
22
23pub fn muscle_def_is_athletic(m: &MuscleDefinitionMorph) -> bool {
24    m.tone > 0.6
25}
26
27pub fn muscle_def_overall_weight(m: &MuscleDefinitionMorph) -> f32 {
28    (m.tone + m.vascularity * 0.5) * 0.5 * m.symmetry
29}
30
31pub fn muscle_def_blend(
32    a: &MuscleDefinitionMorph,
33    b: &MuscleDefinitionMorph,
34    t: f32,
35) -> MuscleDefinitionMorph {
36    let t = t.clamp(0.0, 1.0);
37    MuscleDefinitionMorph {
38        tone: a.tone + (b.tone - a.tone) * t,
39        vascularity: a.vascularity + (b.vascularity - a.vascularity) * t,
40        symmetry: a.symmetry + (b.symmetry - a.symmetry) * t,
41    }
42}
43
44#[cfg(test)]
45mod tests {
46    use super::*;
47
48    #[test]
49    fn test_new_defaults() {
50        /* default is untoned */
51        let m = new_muscle_definition_morph();
52        assert!((m.tone).abs() < 1e-5);
53    }
54
55    #[test]
56    fn test_set_tone_clamped() {
57        /* tone clamps */
58        let mut m = new_muscle_definition_morph();
59        muscle_def_set_tone(&mut m, 2.0);
60        assert!((m.tone - 1.0).abs() < 1e-5);
61    }
62
63    #[test]
64    fn test_is_athletic() {
65        /* athletic threshold */
66        let mut m = new_muscle_definition_morph();
67        muscle_def_set_tone(&mut m, 0.8);
68        assert!(muscle_def_is_athletic(&m));
69    }
70
71    #[test]
72    fn test_overall_weight() {
73        /* overall weight non-negative */
74        let m = new_muscle_definition_morph();
75        assert!(muscle_def_overall_weight(&m) >= 0.0);
76    }
77
78    #[test]
79    fn test_blend() {
80        /* blend midpoint */
81        let a = new_muscle_definition_morph();
82        let mut b = new_muscle_definition_morph();
83        muscle_def_set_tone(&mut b, 1.0);
84        let c = muscle_def_blend(&a, &b, 0.5);
85        assert!((c.tone - 0.5).abs() < 1e-5);
86    }
87}
oxihuman_morph/muscle_definition_morph.rs

oxihuman_morph/
muscle_definition_morph.rs
