oxihuman_morph/
android_proportion.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3#![allow(dead_code)]
4
5//! Android body proportion morph — weight centred upper body/belly.
6
7/// Configuration for the android proportion morph.
8#[derive(Debug, Clone)]
9pub struct AndroidProportionConfig {
10    pub upper_body_mass: f32,
11    pub belly_protrusion: f32,
12    pub hip_narrowness: f32,
13}
14
15impl Default for AndroidProportionConfig {
16    fn default() -> Self {
17        AndroidProportionConfig {
18            upper_body_mass: 0.75,
19            belly_protrusion: 0.65,
20            hip_narrowness: 0.55,
21        }
22    }
23}
24
25/// State for the android proportion morph.
26#[derive(Debug, Clone)]
27pub struct AndroidProportion {
28    pub intensity: f32,
29    pub config: AndroidProportionConfig,
30    pub enabled: bool,
31}
32
33/// Create a new android proportion morph.
34pub fn new_android_proportion() -> AndroidProportion {
35    AndroidProportion {
36        intensity: 0.0,
37        config: AndroidProportionConfig::default(),
38        enabled: true,
39    }
40}
41
42/// Set intensity [0, 1].
43pub fn andr_set_intensity(m: &mut AndroidProportion, v: f32) {
44    m.intensity = v.clamp(0.0, 1.0);
45}
46
47/// Upper body mass weight.
48pub fn andr_upper_mass(m: &AndroidProportion) -> f32 {
49    m.intensity * m.config.upper_body_mass
50}
51
52/// Belly protrusion weight.
53pub fn andr_belly(m: &AndroidProportion) -> f32 {
54    m.intensity * m.config.belly_protrusion
55}
56
57/// Hip narrowness weight.
58pub fn andr_hip_narrow(m: &AndroidProportion) -> f32 {
59    m.intensity * m.config.hip_narrowness
60}
61
62/// Serialise to JSON.
63pub fn andr_to_json(m: &AndroidProportion) -> String {
64    format!(
65        r#"{{"intensity":{:.3},"belly":{:.3},"enabled":{}}}"#,
66        m.intensity,
67        andr_belly(m),
68        m.enabled
69    )
70}
71
72#[cfg(test)]
73mod tests {
74    use super::*;
75
76    #[test]
77    fn default_zero_intensity() {
78        let m = new_android_proportion();
79        assert!((m.intensity - 0.0).abs() < 1e-6 /* zero */);
80    }
81
82    #[test]
83    fn clamp_intensity() {
84        let mut m = new_android_proportion();
85        andr_set_intensity(&mut m, -1.0);
86        assert!((m.intensity - 0.0).abs() < 1e-6 /* clamped to 0 */);
87    }
88
89    #[test]
90    fn upper_mass_proportional() {
91        let mut m = new_android_proportion();
92        andr_set_intensity(&mut m, 1.0);
93        assert!((andr_upper_mass(&m) - m.config.upper_body_mass).abs() < 1e-6 /* correct */);
94    }
95
96    #[test]
97    fn belly_increases_with_intensity() {
98        let mut m = new_android_proportion();
99        andr_set_intensity(&mut m, 0.5);
100        let b5 = andr_belly(&m);
101        andr_set_intensity(&mut m, 1.0);
102        let b10 = andr_belly(&m);
103        assert!(b10 > b5 /* larger belly at higher intensity */);
104    }
105
106    #[test]
107    fn hip_narrow_zero_at_zero() {
108        let m = new_android_proportion();
109        assert!((andr_hip_narrow(&m) - 0.0).abs() < 1e-6 /* zero */);
110    }
111
112    #[test]
113    fn json_has_belly() {
114        let mut m = new_android_proportion();
115        andr_set_intensity(&mut m, 0.8);
116        assert!(andr_to_json(&m).contains("belly") /* json has field */);
117    }
118
119    #[test]
120    fn enabled_default() {
121        let m = new_android_proportion();
122        assert!(m.enabled /* enabled by default */);
123    }
124
125    #[test]
126    fn config_upper_body_mass_positive() {
127        let m = new_android_proportion();
128        assert!(m.config.upper_body_mass > 0.0 /* valid */);
129    }
130}
oxihuman_morph/android_proportion.rs

oxihuman_morph/
android_proportion.rs
