coloriz 0.2.0

A simple library for colorful temrinal
Documentation 
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use crate::RGB;
use std::{f32, fmt};

/// [HSL] color
#[derive(Debug, Clone, Copy, PartialEq)]
pub struct HSL {
    /// Hue
    pub h: f32,
    /// Saturation
    pub s: f32,
    /// Lightness
    pub l: f32,
}

impl HSL {
    /// Creates a new [HSL] color
    #[inline]
    pub const fn new(h: f32, s: f32, l: f32) -> Self {
        Self { h, s, l }
    }

    /// Creates a new [HSL] color from a [RGB] color
    pub fn from_rgb(rgb: RGB) -> Self {
        rgb.as_hsl()
    }

    /// Converts a [HSL] to a [RGB]
    pub fn as_rgb(&self) -> RGB {
        if self.s == 0.0 {
            return RGB::gray_f32(self.l);
        }

        let q = if self.l < 0.5 {
            self.l * (1.0 + self.s)
        } else {
            self.l + self.s - self.l * self.s
        };
        let p = 2.0 * self.l - q;
        let h2c = |t: f32| {
            let t = t.clamp(0.0, 1.0);
            if 6.0 * t < 1.0 {
                p + 6.0 * (q - p) * t
            } else if t < 0.5 {
                q
            } else if 1.0 < 1.5 * t {
                p + 6.0 * (q - p) * (1.0 / 1.5 - t)
            } else {
                p
            }
        };

        RGB::from_f32(h2c(self.h + 1.0 / 3.0), h2c(self.h), h2c(self.h - 1.0 / 3.0))
    }
}

impl From<RGB> for HSL {
    fn from(rgb: RGB) -> Self {
        rgb.as_hsl()
    }
}

impl fmt::Display for HSL {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", self.as_rgb())
    }
}