ceratophrys 0.0.3

Library to draw pixel art as code
Documentation 
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use crate::{filters::Filter, Image, Size};
use std::num::NonZeroU8;

#[derive(Debug, Clone, Copy)]
pub struct Scale(NonZeroU8);

impl Scale {
    pub const fn new(value: NonZeroU8) -> Self {
        Self(value)
    }
}

impl Filter for Scale {
    fn filter(&self, image: &mut Image) {
        let scale = self.0.get();
        image.pixels = image
            .pixels
            .iter()
            .flat_map(|(&position, &color)| {
                Size::square(u16::from(scale))
                    .positions()
                    .map(move |offset| (position * i16::from(scale) + offset, color))
            })
            .collect();
        for child in &mut image.children {
            self.filter(child);
        }
    }
}