74 lines
1.7 KiB
Rust
74 lines
1.7 KiB
Rust
//! Golden background with twinkling lights
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use super::delay;
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use core::convert::TryInto;
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use house::Harrogate;
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use lights::rgb::Rgb;
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use lights::{HardwareRgb, Lights, murmurf};
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const GOLD: Rgb = Rgb(200, 200, 0);
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const RED: Rgb = Rgb(0, 200, 0);
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const GREEN: Rgb = Rgb(0, 200, 0);
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const BLUE: Rgb = Rgb(0, 0, 200);
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const PURPLE: Rgb = Rgb(160, 0, 128);
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const WHITE: Rgb = Rgb(255, 255, 255);
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const FULL_PORCH: usize = 150;
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#[derive(Copy, Clone)]
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struct Pixel {
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color: Rgb,
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delay: u16
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}
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impl Pixel {
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const fn new() -> Pixel {
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Pixel {
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color: GOLD,
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delay: 0,
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}
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}
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fn tick(&mut self, rng: &mut u32) {
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if self.delay > 0 {
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self.delay -= 1;
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} else {
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self.color = match murmurf(rng) % 16 {
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0..=1 => RED,
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2..=3 => GREEN,
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4..=5 => BLUE,
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6 => PURPLE,
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7 => WHITE,
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_ => GOLD,
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};
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self.delay = if self.color == GOLD {
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(murmurf(rng) % 600 + 300).try_into().unwrap_or(1000)
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} else {
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(murmurf(rng) % 100 + 50).try_into().unwrap_or(0)
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}
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}
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}
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}
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#[allow(dead_code)]
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#[inline(always)]
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pub fn run(lights: &mut impl Lights<Pixel = HardwareRgb>) -> ! {
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let mut rng = 1;
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let mut pixels = [Pixel::new(); FULL_PORCH];
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loop {
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for pixel in pixels.iter_mut() {
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pixel.tick(&mut rng);
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}
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Harrogate {
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porch_back: (0..FULL_PORCH).map(|_| GOLD),
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porch_front: pixels.iter().map(|p| p.color)
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}
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.render_to(lights);
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delay(5_000_000 / 60);
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}
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}
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