Function veloren_world::sim::get_horizon_map

pub fn get_horizon_map<F: Float + Sync, A: Send, H: Send>(
    map_size_lg: MapSizeLg,
    bounds: Aabr<i32>,
    minh: F,
    maxh: F,
    h: impl Fn(usize) -> F + Sync,
    to_angle: impl Fn(F) -> A + Sync,
    to_height: impl Fn(F) -> H + Sync,
) -> Result<[(Vec<A>, Vec<H>); 2], ()>

Finds the horizon map for sunlight for the given chunks.