Struct Color

#[repr(C)]
pub struct Color {
    pub r: f32,
    pub g: f32,
    pub b: f32,
    pub a: f32,
}

Fields

r: f32

g: f32

b: f32

a: f32

Implementations

impl Color

pub const fn new(r: f32, g: f32, b: f32, a: f32) -> Color

pub const fn gray(value: f32) -> Color

pub const fn rgb(r: f32, g: f32, b: f32) -> Color

pub fn rgb8(r: u8, g: u8, b: u8) -> Color

Examples found in repository

examples/shapes.rs (line 6)

fn update(_c: &mut EngineContext) {
    clear_background(Color::rgb8(13, 2, 8));

    let z = 0;
    let size = 1.0;
    let thickness = 0.1;

    draw_circle(vec2(0.0, 0.0), size / 2.0, RED, z);
    draw_circle_outline(vec2(0.0, 2.0), size / 2.0, thickness, RED, z);

    draw_rect(vec2(2.0, 0.0), splat(size), GREEN, z);
    draw_rect_outline(vec2(2.0, 2.0), splat(size), thickness, GREEN, z);
}

examples/animated_shapes.rs (line 8)

fn update(_c: &mut EngineContext) {
    let time = get_time() as f32;

    clear_background(Color::rgb8(13, 2, 8));

    let colors = [RED, GREEN, BLUE, YELLOW, CYAN];

    for (i, color) in colors.into_iter().enumerate() {
        let s = (i + 1) as f32;
        let t = s * time;

        let z_index = i as i32;

        draw_circle(
            vec2(i as f32 * 2.0 + 2.0, t.sin() - 2.0),
            s * 0.75,
            color,
            z_index,
        );

        let r = rescale(i, 0..colors.len(), 2..5);
        draw_arc(
            vec2(-s - 2.0, t.sin() - 2.0),
            r,
            PI - t.sin(),
            PI - t.cos(),
            color,
            z_index,
        );

        draw_arc_outline(
            vec2(-0.5, s - 0.5),
            r,
            s / 10.0,
            PI / 4.0 - t.cos().powf(2.0),
            t.sin().powf(2.0) + PI * 3.0 / 4.0,
            // t.cos(),
            color,
            z_index,
        );
    }
}

examples/screenshot_history.rs (line 86)

    fn update(&mut self, c: &mut EngineContext) {
        let screen_size = uvec2(screen_width() as u32, screen_height() as u32);

        if !self.initialized {
            self.initialized = true;

            c.renderer.screenshot_params.record_screenshots = true;
            c.renderer.screenshot_params.screenshot_interval_n = 10;
            c.renderer.screenshot_params.history_length = 5;

            for i in 0..c.renderer.screenshot_params.history_length {
                self.handles.push(
                    c.renderer
                        .context
                        .texture_creator
                        .borrow_mut()
                        .handle_from_size(
                            &format!("screenshot-{i}"),
                            screen_size,
                            RED,
                        ),
                );
            }
        }

        if is_key_pressed(KeyCode::F) {
            let start = Instant::now();

            save_screenshots_to_folder(
                "screenshot-history",
                &c.renderer.screenshot_history_buffer,
            );

            println!(
                "Saved screenshots to folder 'screenshot-history', time: {}ms",
                start.elapsed().as_millis()
            );
        }

        for (screenshot, handle) in
            c.renderer.screenshot_history_buffer.iter().zip(self.handles.iter())
        {
            c.renderer.context.texture_creator.borrow_mut().update_texture(
                &imageops::flip_vertical(&screenshot.image),
                *handle,
            );
        }

        let ratio = screen_size.x as f32 / screen_size.y as f32;
        let w = 2.0;

        for (i, handle) in self.handles.iter().enumerate() {
            draw_sprite(
                *handle,
                vec2(i as f32 * 2.0 + 2.0, 2.0),
                WHITE,
                100,
                vec2(w, w / ratio),
            );
        }

        draw_text_ex(
            "Press F to save screenshots to disk",
            Vec2::ZERO,
            TextAlign::Center,
            TextParams::default(),
        );

        let time = get_time() as f32;

        clear_background(Color::rgb8(13, 2, 8));

        let colors = [RED, GREEN, BLUE, YELLOW, CYAN];

        for (i, color) in colors.into_iter().enumerate() {
            let s = (i + 1) as f32;
            let t = s * time;

            let z_index = i as i32;

            draw_circle(
                vec2(i as f32 * 2.0 + 2.0, t.sin() - 2.0),
                s * 0.75,
                color,
                z_index,
            );

            let r = rescale(i, 0..colors.len(), 2..5);
            draw_arc(
                vec2(-s - 2.0, t.sin() - 2.0),
                r,
                PI - t.sin(),
                PI - t.cos(),
                color,
                z_index,
            );

            draw_arc_outline(
                vec2(-0.5, s - 0.5),
                r,
                s / 10.0,
                PI / 4.0 - t.cos().powf(2.0),
                t.sin().powf(2.0) + PI * 3.0 / 4.0,
                // t.cos(),
                color,
                z_index,
            );
        }
    }

pub fn rgba8(r: u8, g: u8, b: u8, a: u8) -> Color

pub fn egui(self) -> Color32

Examples found in repository

examples/egui.rs (line 10)

fn update(_c: &mut EngineContext) {
    egui::Window::new("Simple egui window")
        .anchor(egui::Align2::CENTER_CENTER, egui::vec2(0.0, 0.0))
        .show(egui(), |ui| {
            if ui.button("hello").hovered() {
                ui.colored_label(RED.egui(), "from egui");
            } else {
                ui.label("from egui");
            }
        });
}

pub fn to_vec4(&self) -> Vec4

pub fn gamma_space_tint(self, tint: Color) -> Color

pub fn linear_space_tint(self, tint: Color) -> Color

pub fn to_linear(self) -> Color

pub fn to_srgb(self) -> Color

pub fn to_array(self) -> [u8; 4]

pub fn to_array_f32(self) -> [f32; 4]

pub fn alpha(&self, value: f32) -> Color

pub fn mix(&self, other: Color, value: f32) -> Color

pub fn to_image_rgba(self) -> Rgba<u8>

pub fn darken(&self, amount: f32) -> Color

pub fn lighten(&self, amount: f32) -> Color

pub fn boost(&self, amount: f32) -> Color

Trait Implementations

impl Add for Color

type Output = Color

The resulting type after applying the + operator.

fn add(self, val: Color) -> <Color as Add>::Output

Performs the + operation.

impl Clone for Color

fn clone(&self) -> Color

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Color

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for Color

fn default() -> Color

Returns the “default value” for a type.

impl From<Color> for Color32

fn from(value: Color) -> Color32

Converts to this type from the input type.

impl From<Color> for Rgba<u8>

fn from(value: Color) -> Rgba<u8>

Converts to this type from the input type.

impl From<Rgba<u8>> for Color

fn from(value: Rgba<u8>) -> Color

Converts to this type from the input type.

impl MathExtensions for Color

fn lerp(self, other: Color, t: f32) -> Color

impl Mul<f32> for Color

type Output = Color

The resulting type after applying the * operator.

fn mul(self, val: f32) -> <Color as Mul<f32>>::Output

Performs the * operation.

impl Mul for Color

type Output = Color

The resulting type after applying the * operator.

fn mul(self, val: Color) -> <Color as Mul>::Output

Performs the * operation.

impl PartialEq for Color

fn eq(&self, other: &Color) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl WgpuColorExtensions for Color

fn to_wgpu(&self) -> Color

impl Zeroable for Color

fn zeroed() -> Self

Calls zeroed.

impl Copy for Color

impl Pod for Color

impl StructuralPartialEq for Color