oberons 0.0.3

Oberon celestial simulation crate for the MilkyWay SolarSystem workspace
Documentation 
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum TerrainMaterial {
    DarkRegolith,
    IcyBright,
    CraterEjecta,
    PolarFrost,
}

pub fn material_from_albedo(albedo: f64, polar: bool) -> TerrainMaterial {
    if polar && albedo > 0.25 {
        TerrainMaterial::PolarFrost
    } else if albedo < 0.18 {
        TerrainMaterial::DarkRegolith
    } else if albedo > 0.40 {
        TerrainMaterial::IcyBright
    } else {
        TerrainMaterial::CraterEjecta
    }
}