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use math::interpolate;
use noise_fns::NoiseFn;
pub struct Blend<'a, T: 'a> {
pub source1: &'a dyn NoiseFn<T>,
pub source2: &'a dyn NoiseFn<T>,
pub control: &'a dyn NoiseFn<T>,
}
impl<'a, T> Blend<'a, T> {
pub fn new(
source1: &'a dyn NoiseFn<T>,
source2: &'a dyn NoiseFn<T>,
control: &'a dyn NoiseFn<T>,
) -> Self {
Blend {
source1,
source2,
control,
}
}
}
impl<'a, T> NoiseFn<T> for Blend<'a, T>
where
T: Copy,
{
fn get(&self, point: T) -> f64 {
let lower = self.source1.get(point);
let upper = self.source2.get(point);
let control = self.control.get(point);
interpolate::linear(lower, upper, control)
}
}