69 lines
1.9 KiB
Rust
69 lines
1.9 KiB
Rust
//! ramp gradient of red and green
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use super::delay;
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use house::Harrogate;
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use lights::rgb::{blend_steps, Rgb};
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use lights::{HardwareRgb, Lights};
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const OFF: Rgb = Rgb(0, 0, 0);
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const GREEN: Rgb = Rgb(0, 200, 0);
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const RED: Rgb = Rgb(200, 0, 0);
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const SEGMENT_LEN: usize = 35;
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const ZOOM: usize = 10;
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const ZOOM_SEGMENT_LEN: usize = SEGMENT_LEN * ZOOM;
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const OVERLAP: usize = 60;
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const RAMP_LEN: usize = ZOOM_SEGMENT_LEN / 4 + OVERLAP;
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const HALF_PORCH: usize = 75;
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const FULL_PORCH: usize = 150;
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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 t = 0;
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loop {
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// advance "time" for pattern
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t += 1;
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if t > ZOOM_SEGMENT_LEN {
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t = 0;
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}
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let ramp_func = |x, center, color| {
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if x < center {
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if x < (center - RAMP_LEN) {
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OFF
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} else {
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blend_steps(OFF, color, RAMP_LEN, x - (center - RAMP_LEN))
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}
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} else {
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if x > (center + RAMP_LEN) {
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OFF
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} else {
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blend_steps(color, OFF, RAMP_LEN, x - center)
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}
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}
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};
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let half_pattern_func = |i| {
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let x = (i * ZOOM) + t;
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let x = x % ZOOM_SEGMENT_LEN;
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ramp_func(x, 0, RED)
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+ ramp_func(x, ZOOM_SEGMENT_LEN, RED)
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+ ramp_func(x, ZOOM_SEGMENT_LEN / 2, GREEN)
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};
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let pattern_func = |i| match i {
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i if i < HALF_PORCH => half_pattern_func(i),
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i => half_pattern_func(FULL_PORCH - i),
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};
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Harrogate {
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porch_back: (0..FULL_PORCH).map(|_| pattern_func(HALF_PORCH)),
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porch_front: (0..FULL_PORCH).map(pattern_func),
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}
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.render_to(lights);
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delay(300_000);
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}
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}
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