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use bevy::prelude::Color;
use crate::draw::{Draw, drawing};
/// Nodes that support setting colors.
pub trait SetColor: Sized {
/// Provide a mutable reference to the RGBA field which can be used for setting colors.
fn color_mut(&mut self) -> &mut Option<Color>;
/// Specify a color.
///
/// This method supports any color type that can be converted into RGBA.
///
/// Colors that have no alpha channel will be given an opaque alpha channel value `1.0`.
fn color<C>(mut self, color: C) -> Self
where
C: Into<Color>,
{
*self.color_mut() = Some(color.into());
self
}
/// Specify the color via red, green and blue channels.
fn srgb(self, r: f32, g: f32, b: f32) -> Self {
self.color(Color::srgb(r, g, b))
}
/// Specify the color via red, green and blue channels as bytes
fn srgb_u8(self, r: u8, g: u8, b: u8) -> Self {
self.color(Color::srgb_u8(r, g, b))
}
/// Specify the color via red, green, blue and alpha channels.
fn srgba(self, r: f32, g: f32, b: f32, a: f32) -> Self {
self.color(Color::srgba(r, g, b, a))
}
/// Specify the color via red, green, blue and alpha channels as bytes
fn srgba_u8(self, r: u8, g: u8, b: u8, a: u8) -> Self {
self.color(Color::srgba_u8(r, g, b, a))
}
fn linear_rgb(self, r: f32, g: f32, b: f32) -> Self {
self.color(Color::linear_rgb(r, g, b))
}
fn linear_rgba(self, r: f32, g: f32, b: f32, a: f32) -> Self {
self.color(Color::linear_rgba(r, g, b, a))
}
/// Specify the color via hue, saturation and luminance.
///
/// If you're looking for HSV or HSB, use the `hsv` method instead.
///
/// The given hue expects a value between `0.0` and `1.0` where `0.0` is 0 degress and `1.0` is
/// 360 degrees (or 2 PI radians).
///
/// See the [wikipedia entry](https://en.wikipedia.org/wiki/HSL_and_HSV) for more details on
/// this color space.
fn hsl(self, h: f32, s: f32, l: f32) -> Self {
let hue = h * 360.0;
self.color(Color::hsl(hue, s, l))
}
/// Specify the color via hue, saturation, luminance and an alpha channel.
///
/// If you're looking for HSVA or HSBA, use the `hsva` method instead.
///
/// The given hue expects a value between `0.0` and `1.0` where `0.0` is 0 degress and `1.0` is
/// 360 degrees (or 2 PI radians).
///
/// See the [wikipedia entry](https://en.wikipedia.org/wiki/HSL_and_HSV) for more details on
/// this color space.
fn hsla(self, h: f32, s: f32, l: f32, a: f32) -> Self {
let hue = h * 360.0;
self.color(Color::hsla(hue, s, l, a))
}
/// Specify the color via hue, saturation and *value* (brightness).
///
/// This is sometimes also known as "hsb".
///
/// The given hue expects a value between `0.0` and `1.0` where `0.0` is 0 degress and `1.0` is
/// 360 degrees (or 2 PI radians).
///
/// See the [wikipedia entry](https://en.wikipedia.org/wiki/HSL_and_HSV) for more details on
/// this color space.
fn hsv(self, h: f32, s: f32, v: f32) -> Self {
let hue = h * 360.0;
self.color(Color::hsv(hue, s, v))
}
/// Specify the color via hue, saturation, *value* (brightness) and an alpha channel.
///
/// This is sometimes also known as "hsba".
///
/// The given hue expects a value between `0.0` and `1.0` where `0.0` is 0 degress and `1.0` is
/// 360 degrees (or 2 PI radians).
///
/// See the [wikipedia entry](https://en.wikipedia.org/wiki/HSL_and_HSV) for more details on
/// this color space.
fn hsva(self, h: f32, s: f32, v: f32, a: f32) -> Self {
let hue = h * 360.0;
self.color(Color::hsva(hue, s, v, a))
}
fn hwb(self, h: f32, w: f32, b: f32) -> Self {
let hue = h * 360.0;
self.color(Color::hwb(hue, w, b))
}
fn hwba(self, h: f32, w: f32, b: f32, a: f32) -> Self {
let hue = h * 360.0;
self.color(Color::hwba(hue, w, b, a))
}
fn lab(self, l: f32, a: f32, b: f32) -> Self {
self.color(Color::lab(l, a, b))
}
fn laba(self, l: f32, a: f32, b: f32, alpha: f32) -> Self {
self.color(Color::laba(l, a, b, alpha))
}
fn lch(self, l: f32, c: f32, h: f32) -> Self {
self.color(Color::lch(l, c, h))
}
fn lcha(self, l: f32, c: f32, h: f32, alpha: f32) -> Self {
self.color(Color::lcha(l, c, h, alpha))
}
fn oklab(self, l: f32, a: f32, b: f32) -> Self {
self.color(Color::oklab(l, a, b))
}
fn oklaba(self, l: f32, a: f32, b: f32, alpha: f32) -> Self {
self.color(Color::oklaba(l, a, b, alpha))
}
fn oklch(self, l: f32, c: f32, h: f32) -> Self {
self.color(Color::oklch(l, c, h))
}
fn oklcha(self, l: f32, c: f32, h: f32, alpha: f32) -> Self {
self.color(Color::oklcha(l, c, h, alpha))
}
fn cie_xyz(self, x: f32, y: f32, z: f32) -> Self {
self.color(Color::xyz(x, y, z))
}
fn cie_xyza(self, x: f32, y: f32, z: f32, alpha: f32) -> Self {
self.color(Color::xyza(x, y, z, alpha))
}
/// Specify the color as gray scale
///
/// The given g expects a value between `0.0` and `1.0` where `0.0` is black and `1.0` is white
fn gray(self, g: f32) -> Self {
self.color(Color::srgb(g, g, g))
}
}
impl SetColor for Option<Color> {
fn color_mut(&mut self) -> &mut Option<Color> {
self
}
}
// Set the color of the primitive being drawn at `index`.
pub(crate) fn set_color(draw: &Draw, index: usize, color: Color) {
drawing::with_primitive(draw, index, |prim| match prim.color_mut() {
Some(c) => *c = Some(color),
None => bevy::log::warn_once!("drawing primitive does not support `color`"),
})
}