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use crate::{math::interpolate, noise_fns::NoiseFn};
use core::marker::PhantomData;
pub struct Blend<T, Source1, Source2, Control, const DIM: usize>
where
Source1: NoiseFn<T, DIM>,
Source2: NoiseFn<T, DIM>,
Control: NoiseFn<T, DIM>,
{
pub source1: Source1,
pub source2: Source2,
pub control: Control,
phantom: PhantomData<T>,
}
impl<T, Source1, Source2, Control, const DIM: usize> Blend<T, Source1, Source2, Control, DIM>
where
Source1: NoiseFn<T, DIM>,
Source2: NoiseFn<T, DIM>,
Control: NoiseFn<T, DIM>,
{
pub fn new(source1: Source1, source2: Source2, control: Control) -> Self {
Blend {
source1,
source2,
control,
phantom: PhantomData,
}
}
}
impl<T, Source1, Source2, Control, const DIM: usize> NoiseFn<T, DIM>
for Blend<T, Source1, Source2, Control, DIM>
where
T: Copy,
Source1: NoiseFn<T, DIM>,
Source2: NoiseFn<T, DIM>,
Control: NoiseFn<T, DIM>,
{
fn get(&self, point: [T; DIM]) -> f64 {
let lower = self.source1.get(point);
let upper = self.source2.get(point);
let control = self.control.get(point);
interpolate::linear(lower, upper, control)
}
}