oxihuman_morph/
freckle_morph.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3#![allow(dead_code)]
4
5//! Freckle distribution morph stub.
6
7/// Freckle distribution pattern.
8#[derive(Debug, Clone, Copy, PartialEq)]
9pub enum FrecklePattern {
10    Sparse,
11    Moderate,
12    Dense,
13    Solar,
14}
15
16/// Freckle morph controller.
17#[derive(Debug, Clone)]
18pub struct FreckileMorph {
19    pub pattern: FrecklePattern,
20    pub density: f32,
21    pub size: f32,
22    pub morph_count: usize,
23    pub enabled: bool,
24}
25
26impl FreckileMorph {
27    pub fn new(morph_count: usize) -> Self {
28        FreckileMorph {
29            pattern: FrecklePattern::Sparse,
30            density: 0.3,
31            size: 0.5,
32            morph_count,
33            enabled: true,
34        }
35    }
36}
37
38/// Create a new freckle morph.
39pub fn new_freckle_morph(morph_count: usize) -> FreckileMorph {
40    FreckileMorph::new(morph_count)
41}
42
43/// Set freckle pattern.
44pub fn fkm_set_pattern(morph: &mut FreckileMorph, pattern: FrecklePattern) {
45    morph.pattern = pattern;
46}
47
48/// Set freckle density.
49pub fn fkm_set_density(morph: &mut FreckileMorph, density: f32) {
50    morph.density = density.clamp(0.0, 1.0);
51}
52
53/// Set freckle size factor.
54pub fn fkm_set_size(morph: &mut FreckileMorph, size: f32) {
55    morph.size = size.clamp(0.0, 1.0);
56}
57
58/// Evaluate morph weights (stub: uniform from density).
59pub fn fkm_evaluate(morph: &FreckileMorph) -> Vec<f32> {
60    /* Stub: uniform weight from density */
61    if !morph.enabled || morph.morph_count == 0 {
62        return vec![];
63    }
64    vec![morph.density; morph.morph_count]
65}
66
67/// Enable or disable.
68pub fn fkm_set_enabled(morph: &mut FreckileMorph, enabled: bool) {
69    morph.enabled = enabled;
70}
71
72/// Serialize to JSON-like string.
73pub fn fkm_to_json(morph: &FreckileMorph) -> String {
74    let pat = match morph.pattern {
75        FrecklePattern::Sparse => "sparse",
76        FrecklePattern::Moderate => "moderate",
77        FrecklePattern::Dense => "dense",
78        FrecklePattern::Solar => "solar",
79    };
80    format!(
81        r#"{{"pattern":"{}","density":{},"size":{},"morph_count":{},"enabled":{}}}"#,
82        pat, morph.density, morph.size, morph.morph_count, morph.enabled
83    )
84}
85
86#[cfg(test)]
87mod tests {
88    use super::*;
89
90    #[test]
91    fn test_default_pattern() {
92        let m = new_freckle_morph(4);
93        assert_eq!(
94            m.pattern,
95            FrecklePattern::Sparse /* default pattern must be Sparse */
96        );
97    }
98
99    #[test]
100    fn test_set_pattern() {
101        let mut m = new_freckle_morph(4);
102        fkm_set_pattern(&mut m, FrecklePattern::Dense);
103        assert_eq!(
104            m.pattern,
105            FrecklePattern::Dense /* pattern must be set */
106        );
107    }
108
109    #[test]
110    fn test_density_clamp() {
111        let mut m = new_freckle_morph(4);
112        fkm_set_density(&mut m, 1.5);
113        assert!((m.density - 1.0).abs() < 1e-6 /* density clamped to 1.0 */);
114    }
115
116    #[test]
117    fn test_size_clamp() {
118        let mut m = new_freckle_morph(4);
119        fkm_set_size(&mut m, -0.5);
120        assert!(m.size.abs() < 1e-6 /* size clamped to 0.0 */);
121    }
122
123    #[test]
124    fn test_evaluate_length() {
125        let m = new_freckle_morph(5);
126        assert_eq!(
127            fkm_evaluate(&m).len(),
128            5 /* output must match morph_count */
129        );
130    }
131
132    #[test]
133    fn test_evaluate_disabled() {
134        let mut m = new_freckle_morph(4);
135        fkm_set_enabled(&mut m, false);
136        assert!(fkm_evaluate(&m).is_empty() /* disabled must return empty */);
137    }
138
139    #[test]
140    fn test_to_json_has_pattern() {
141        let m = new_freckle_morph(4);
142        let j = fkm_to_json(&m);
143        assert!(j.contains("\"pattern\"") /* JSON must have pattern */);
144    }
145
146    #[test]
147    fn test_enabled_default() {
148        let m = new_freckle_morph(4);
149        assert!(m.enabled /* must be enabled by default */);
150    }
151
152    #[test]
153    fn test_evaluate_matches_density() {
154        let mut m = new_freckle_morph(3);
155        fkm_set_density(&mut m, 0.6);
156        let out = fkm_evaluate(&m);
157        assert!((out[0] - 0.6).abs() < 1e-5 /* evaluate must match density */);
158    }
159}
oxihuman_morph/freckle_morph.rs

oxihuman_morph/
freckle_morph.rs
