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moving neopixel state to pxt

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This commit is contained in:
Peli de Halleux
2016-09-13 13:09:02 -07:00
parent 72a621ec8b
commit e59ae37954
2 changed files with 3 additions and 84 deletions
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39
sim/visuals/neopixel.ts
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@ -3,43 +3,6 @@
/// <reference path="../../libs/microbit/shims.d.ts"/>
/// <reference path="../../libs/microbit/enums.d.ts"/>
//TODO move to utils
namespace pxsim.visuals {
//expects rgb from 0,255, gives h in [0,360], s in [0, 100], l in [0, 100]
export function rgbToHsl(rgb: [number, number, number]): [number, number, number] {
let [r, g, b] = rgb;
let [r$, g$, b$] = [r / 255, g / 255, b / 255];
let cMin = Math.min(r$, g$, b$);
let cMax = Math.max(r$, g$, b$);
let cDelta = cMax - cMin;
let h: number, s: number, l: number;
let maxAndMin = cMax + cMin;
//lum
l = (maxAndMin / 2) * 100
if (cDelta === 0)
s = h = 0;
else {
//hue
if (cMax === r$)
h = 60 * (((g$ - b$) / cDelta) % 6);
else if (cMax === g$)
h = 60 * (((b$ - r$) / cDelta) + 2);
else if (cMax === b$)
h = 60 * (((r$ - g$) / cDelta) + 4);
//sat
if (l > 50)
s = 100 * (cDelta / (2 - maxAndMin));
else
s = 100 * (cDelta / maxAndMin);
}
return [Math.floor(h), Math.floor(s), Math.floor(l)];
}
}
namespace pxsim.visuals {
const PIXEL_SPACING = PIN_DIST * 3;
const PIXEL_RADIUS = PIN_DIST;
@ -115,7 +78,7 @@ namespace pxsim.visuals {
}
public setRgb(rgb: [number, number, number]) {
let hsl = rgbToHsl(rgb);
let hsl = visuals.rgbToHsl(rgb);
let [h, s, l] = hsl;
// at least 70% luminosity
l = Math.max(l, 60);