titanss 0.0.3

Titanss is a celestial simulation crate for the MilkyWay SolarSystem workspace
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

#[derive(Debug, Clone, Copy, PartialEq)]
pub struct SaturnView {
    pub saturn_elevation_deg: f64,
    pub apparent_diameter_deg: f64,
    pub illuminated_fraction: f64,
}

impl SaturnView {
    pub fn sub_saturn_default() -> Self {
        Self {
            saturn_elevation_deg: 89.0,
            apparent_diameter_deg: 4.5,
            illuminated_fraction: 0.70,
        }
    }
    pub fn is_visible(&self) -> bool {
        self.saturn_elevation_deg > 0.0
    }
}

pub fn saturnshine_gain(view: SaturnView, surface_albedo: f64) -> f64 {
    if view.is_visible() {
        view.illuminated_fraction * view.apparent_diameter_deg * surface_albedo.max(0.0)
    } else {
        0.0
    }
}