oxihuman_morph/
eye_fold_control.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3
4#![allow(dead_code)]
5
6//! Eye fold (epicanthic fold) morph control.
7
8/// Configuration for eye fold morphing.
9#[allow(dead_code)]
10#[derive(Debug, Clone)]
11pub struct EyeFoldConfig {
12    pub min_fold: f32,
13    pub max_fold: f32,
14}
15
16/// Runtime state for eye fold morph.
17#[allow(dead_code)]
18#[derive(Debug, Clone)]
19pub struct EyeFoldState {
20    pub left_fold: f32,
21    pub right_fold: f32,
22    pub crease_depth: f32,
23}
24
25#[allow(dead_code)]
26pub fn default_eye_fold_config() -> EyeFoldConfig {
27    EyeFoldConfig {
28        min_fold: 0.0,
29        max_fold: 1.0,
30    }
31}
32
33#[allow(dead_code)]
34pub fn new_eye_fold_state() -> EyeFoldState {
35    EyeFoldState {
36        left_fold: 0.0,
37        right_fold: 0.0,
38        crease_depth: 0.3,
39    }
40}
41
42#[allow(dead_code)]
43pub fn ef_set_left(state: &mut EyeFoldState, cfg: &EyeFoldConfig, v: f32) {
44    state.left_fold = v.clamp(cfg.min_fold, cfg.max_fold);
45}
46
47#[allow(dead_code)]
48pub fn ef_set_right(state: &mut EyeFoldState, cfg: &EyeFoldConfig, v: f32) {
49    state.right_fold = v.clamp(cfg.min_fold, cfg.max_fold);
50}
51
52#[allow(dead_code)]
53pub fn ef_set_both(state: &mut EyeFoldState, cfg: &EyeFoldConfig, v: f32) {
54    let clamped = v.clamp(cfg.min_fold, cfg.max_fold);
55    state.left_fold = clamped;
56    state.right_fold = clamped;
57}
58
59#[allow(dead_code)]
60pub fn ef_set_crease(state: &mut EyeFoldState, v: f32) {
61    state.crease_depth = v.clamp(0.0, 1.0);
62}
63
64#[allow(dead_code)]
65pub fn ef_reset(state: &mut EyeFoldState) {
66    *state = new_eye_fold_state();
67}
68
69#[allow(dead_code)]
70pub fn ef_to_weights(state: &EyeFoldState) -> Vec<(String, f32)> {
71    vec![
72        ("eye_fold_left".to_string(), state.left_fold),
73        ("eye_fold_right".to_string(), state.right_fold),
74        ("eye_fold_crease".to_string(), state.crease_depth),
75    ]
76}
77
78#[allow(dead_code)]
79pub fn ef_to_json(state: &EyeFoldState) -> String {
80    format!(
81        r#"{{"left_fold":{:.4},"right_fold":{:.4},"crease_depth":{:.4}}}"#,
82        state.left_fold, state.right_fold, state.crease_depth
83    )
84}
85
86#[allow(dead_code)]
87pub fn ef_blend(a: &EyeFoldState, b: &EyeFoldState, t: f32) -> EyeFoldState {
88    let t = t.clamp(0.0, 1.0);
89    EyeFoldState {
90        left_fold: a.left_fold + (b.left_fold - a.left_fold) * t,
91        right_fold: a.right_fold + (b.right_fold - a.right_fold) * t,
92        crease_depth: a.crease_depth + (b.crease_depth - a.crease_depth) * t,
93    }
94}
95
96#[cfg(test)]
97mod tests {
98    use super::*;
99
100    #[test]
101    fn test_default_config() {
102        let cfg = default_eye_fold_config();
103        assert!(cfg.min_fold.abs() < 1e-6);
104        assert!((cfg.max_fold - 1.0).abs() < 1e-6);
105    }
106
107    #[test]
108    fn test_new_state() {
109        let s = new_eye_fold_state();
110        assert!(s.left_fold.abs() < 1e-6);
111        assert!((s.crease_depth - 0.3).abs() < 1e-6);
112    }
113
114    #[test]
115    fn test_set_left_clamps() {
116        let cfg = default_eye_fold_config();
117        let mut s = new_eye_fold_state();
118        ef_set_left(&mut s, &cfg, 5.0);
119        assert!((s.left_fold - 1.0).abs() < 1e-6);
120    }
121
122    #[test]
123    fn test_set_both() {
124        let cfg = default_eye_fold_config();
125        let mut s = new_eye_fold_state();
126        ef_set_both(&mut s, &cfg, 0.6);
127        assert!((s.left_fold - 0.6).abs() < 1e-6);
128        assert!((s.right_fold - 0.6).abs() < 1e-6);
129    }
130
131    #[test]
132    fn test_set_crease() {
133        let mut s = new_eye_fold_state();
134        ef_set_crease(&mut s, 0.9);
135        assert!((s.crease_depth - 0.9).abs() < 1e-6);
136    }
137
138    #[test]
139    fn test_reset() {
140        let cfg = default_eye_fold_config();
141        let mut s = new_eye_fold_state();
142        ef_set_left(&mut s, &cfg, 0.8);
143        ef_reset(&mut s);
144        assert!(s.left_fold.abs() < 1e-6);
145    }
146
147    #[test]
148    fn test_to_weights() {
149        let s = new_eye_fold_state();
150        assert_eq!(ef_to_weights(&s).len(), 3);
151    }
152
153    #[test]
154    fn test_to_json() {
155        let s = new_eye_fold_state();
156        let j = ef_to_json(&s);
157        assert!(j.contains("left_fold"));
158    }
159
160    #[test]
161    fn test_blend() {
162        let a = new_eye_fold_state();
163        let mut b = new_eye_fold_state();
164        b.left_fold = 1.0;
165        let mid = ef_blend(&a, &b, 0.5);
166        assert!((mid.left_fold - 0.5).abs() < 1e-6);
167    }
168
169    #[test]
170    fn test_set_right() {
171        let cfg = default_eye_fold_config();
172        let mut s = new_eye_fold_state();
173        ef_set_right(&mut s, &cfg, 0.4);
174        assert!((s.right_fold - 0.4).abs() < 1e-6);
175    }
176}
oxihuman_morph/eye_fold_control.rs

oxihuman_morph/
eye_fold_control.rs
