a/spatio
Archived
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Taking a break

Browse source
This commit is contained in:
Isaac Clayton 2022-01-22 16:25:44 +01:00
parent 995a853905
commit 804f22d05a
2 changed files with 28 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
src/main.rs
View file

@ -13,11 +13,20 @@ fn main() {
base.push(i);
}
let quad: quad::Node<u8, u8> = quad::Node::new_from_square(
let mut quad: quad::Node<u8, u8> = quad::Node::new_from_square(
&mut ctx, base,
);
println!("{:#?}", quad);
// TODO: this does not work correctly
// for x in -2..2 {
// for y in -2..2 {
// let (nquad, color) = quad.sample_color(&mut ctx, x, y);
// quad = nquad;
// println!("{}", color[0]);
// }
// }
// render::graphics();
}

32
src/quad.rs
View file

@ -32,30 +32,34 @@ pub struct Node<A: Embed, B: Embed> {
}
impl<A: Embed, B: Embed> Node<A, B> {
// TODO: this function does not work correctly
pub fn sample_color<S, N: Approx<A, B, S>>(
self,
ctx: &mut Ctx<A, B, S, N>,
x: isize,
y: isize,
) -> (Self, [u8; 4]) {
// self = ctx.expand(self);
// if let Quad::Base(b) = self.data {
// return (self, ctx.color_base(&b));
// }
let mut expanded = ctx.expand(self);
match expanded.data {
Quad::Base(a) => (expanded, ctx.color_base(a)),
Quad::Node(ref mut n) => {
let depth = expanded.depth;
let half = 1 << (depth - 1);
let (c, nx, ny) = match (x >= 0, y >= 0) {
(true , true) => (1, x - half, y - half),
(true , false) => (3, x - half, y + half),
(false , true) => (0, x + half, y - half),
(false , false) => (2, x + half, y + half),
};
let child_size = 1 << (self.depth - 1);
let nx = (x + child_size) % child_size;
let ny = (y + child_size) % child_size;
let oc = std::mem::replace(&mut n[c], Self::new_empty(ctx));
let (nc, color) = oc.sample_color(ctx, nx, ny);
n[c] = nc;
match (x >= 0, y >= 0) {
(true, true) => {
let x = x;
(expanded, color)
},
_ => { unreachable!(); }
Quad::Cached => unreachable!("Expanded this node!"),
}
// self
todo!()
}
/// Creates a new tree with a single empty base node