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use super::{textures::TextureRef, vertices::Vertex};
use serde::{Deserialize, Serialize};
pub type FaceRef = u32;
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub enum Geometry {
Vertices(Vertex, Vertex, Vertex),
}
pub trait IsFace<C: HasFaces + ?Sized> {
fn index(&self, container: &C) -> FaceRef;
fn geometry(&self, container: &C) -> Geometry;
fn texture_idx(&self, container: &C) -> TextureRef;
}
pub trait HasFaces {
type Face: IsFace<Self>;
fn get_face(&self, index: FaceRef) -> Option<&Self::Face>;
fn iter_faces(&self) -> Faces<Self> {
Faces {
next: 0,
container: self,
}
}
}
#[derive(Debug, Clone, Copy)]
pub struct Faces<'a, T: HasFaces + ?Sized> {
next: FaceRef,
container: &'a T,
}
impl<'a, T: HasFaces> Iterator for Faces<'a, T> {
type Item = &'a T::Face;
fn next(&mut self) -> Option<Self::Item> {
let res = self.container.get_face(self.next);
self.next += 1;
res
}
}
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