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use crate::grid2::*;
use mint::Vector2;
use std::marker::PhantomData;
pub struct Grid2Map<G, F, T>
where
G: Grid2,
F: Fn(<G as Grid2>::Item) -> T,
{
inner: G,
func: F,
p: PhantomData<fn(T)>
}
impl<G, F, T> Grid2Map<G, F, T>
where
G: Grid2,
F: Fn(<G as Grid2>::Item) -> T,
{
pub fn new(inner: G, func: F) -> Self {
Grid2Map {
inner,
func,
p: PhantomData,
}
}
}
impl<G, F, T> Grid2 for Grid2Map<G, F, T>
where
G: Grid2,
F: Fn(<G as Grid2>::Item) -> T,
{
type Item = T;
type XBound = <G as Grid2>::XBound;
type YBound = <G as Grid2>::YBound;
fn x_bound(&self) -> Self::XBound { self.inner.x_bound() }
fn y_bound(&self) -> Self::YBound { self.inner.y_bound() }
}
impl<G, F, T> Grid2Len for Grid2Map<G, F, T>
where
G: Grid2 + Grid2Len,
F: Fn(<G as Grid2>::Item) -> T,
{}
impl<G, F, T> Grid2Get for Grid2Map<G, F, T>
where
G: Grid2 + Grid2Get,
F: Fn(<G as Grid2>::Item) -> T,
{
fn get<I>(&self, coord: I) -> Self::Item
where
I: Into<Vector2<i32>>
{
(self.func)(self.inner.get(coord))
}
}