oxihuman_export/
world_export.rs

1// Copyright (C) 2026 COOLJAPAN OU (Team KitaSan)
2// SPDX-License-Identifier: Apache-2.0
3#![allow(dead_code)]
4
5//! World/environment export.
6
7/// World environment data.
8#[derive(Debug, Clone)]
9pub struct WorldData {
10    pub name: String,
11    pub horizon_color: [f32; 3],
12    pub ambient_color: [f32; 3],
13    pub ambient_energy: f32,
14    pub fog_start: f32,
15    pub fog_end: f32,
16    pub hdri_path: Option<String>,
17}
18
19/// Create a new `WorldData`.
20pub fn new_world_data(name: &str) -> WorldData {
21    WorldData {
22        name: name.to_string(),
23        horizon_color: [0.05, 0.05, 0.05],
24        ambient_color: [0.0, 0.0, 0.0],
25        ambient_energy: 1.0,
26        fog_start: 5.0,
27        fog_end: 50.0,
28        hdri_path: None,
29    }
30}
31
32/// Serialize to JSON.
33pub fn world_to_json(w: &WorldData) -> String {
34    format!(
35        "{{\"name\":\"{}\",\"ambient_energy\":{},\"fog_start\":{},\"fog_end\":{},\"has_hdri\":{}}}",
36        w.name,
37        w.ambient_energy,
38        w.fog_start,
39        w.fog_end,
40        w.hdri_path.is_some()
41    )
42}
43
44/// Returns true if an HDRI path is set.
45pub fn world_has_hdri(w: &WorldData) -> bool {
46    w.hdri_path.is_some()
47}
48
49/// Ambient energy value.
50pub fn world_ambient_energy(w: &WorldData) -> f32 {
51    w.ambient_energy
52}
53
54/// Visibility distance (fog_end - fog_start).
55pub fn world_fog_visibility(w: &WorldData) -> f32 {
56    (w.fog_end - w.fog_start).max(0.0)
57}
58
59#[cfg(test)]
60mod tests {
61    use super::*;
62
63    #[test]
64    fn test_new_world_data() {
65        let w = new_world_data("world");
66        assert_eq!(w.name, "world");
67    }
68
69    #[test]
70    fn test_world_to_json() {
71        let w = new_world_data("env");
72        let j = world_to_json(&w);
73        assert!(j.contains("env"));
74    }
75
76    #[test]
77    fn test_world_has_hdri_false() {
78        let w = new_world_data("w");
79        assert!(!world_has_hdri(&w));
80    }
81
82    #[test]
83    fn test_world_ambient_energy() {
84        let w = new_world_data("w");
85        assert!((world_ambient_energy(&w) - 1.0).abs() < 1e-5);
86    }
87
88    #[test]
89    fn test_world_fog_visibility() {
90        let w = new_world_data("w");
91        assert!(world_fog_visibility(&w) > 0.0);
92    }
93}
oxihuman_export/world_export.rs

oxihuman_export/
world_export.rs
