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use crate::{color::Color, Sample};
pub struct Matrix {
pub inner: Box<dyn Sample>,
pub matrix: ((f64, f64), (f64, f64)),
}
impl Sample for Matrix {
fn sample(&mut self, x: f64, y: f64) -> Color {
let (x, y) = (
x * self.matrix.0 .0 + y * self.matrix.0 .1,
x * self.matrix.1 .0 + y * self.matrix.1 .1,
);
self.inner.sample(x, y)
}
}
pub struct Polar(pub Box<dyn Sample>);
impl Sample for Polar {
fn sample(&mut self, x: f64, y: f64) -> Color {
let ang = x.atan2(y);
let dist = (x * x + y * y).sqrt();
self.0.sample(ang, dist)
}
}
pub struct Translate {
pub inner: Box<dyn Sample>,
pub offset: (f64, f64),
}
impl Sample for Translate {
fn sample(&mut self, x: f64, y: f64) -> Color {
self.inner.sample(x + self.offset.0, y + self.offset.1)
}
}
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