Rework metadata #31
Description
Via Andrei:
Another unrelated interesting thought is not having metadata wrapped in Option.
If the user does not want metadata, they can set S = ().
If they do want it always, they say S = Something.
If they do want it sometimes, they say S = Option<Something>.
#[derive(Debug, Clone)]
pub struct CSG<S: Clone> {
pub something: SomeStorage<S>,
pub metadata: S,
}This may also lead to a neat solution that simplifies all the CSG constructor methods.
They could instead return CSG<()>, and CSG could for example have a method with_meta<SNew: Clone>(self, m: SNew) -> CSG<SNew> (or map_meta(...) etc.).
Then the workflow could be:
let a = CSG::sphere(...).with_meta(Color::BLUE);
let b = CSG::cylinder(...).with_meta(Color::RED);
let c = a.intersection(b);