49 lines
1.1 KiB
JavaScript
49 lines
1.1 KiB
JavaScript
"use strict";
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function mix(a, b, p) {
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return a + (b - a) * p;
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}
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function ratio(l, r, m) {
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return l === r ? 0 : (m - l) / (r - l);
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}
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function barmixL(l, r, b, p) {
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return l > r ? barmixL(r, l, b, p) : l + b + p * (r - l - b * 3);
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}
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function barmixM(l, r, b, p) {
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return barmixL(l, r, b, p) + b / 2;
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}
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function barMixR(l, r, b, p) {
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return barMixR(l, r, b, p) + b;
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}
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function linreg(x0, y0, x1, y1, x) {
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return y0 + ((x - x0) * (y1 - y0)) / (x1 - x0);
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}
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function clamp(l, h, x) {
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return x < l ? l : x > h ? h : x;
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}
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function fallback(...args) {
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for (const item of args) if (item !== void 0) return item;
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return void 0;
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}
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function bez2(a, b, c, t) {
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return (1 - t) * (1 - t) * a + 2 * (1 - t) * t * b + t * t * c;
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}
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function bez3(a, b, c, d, t) {
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return (
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(1 - t) * (1 - t) * (1 - t) * a +
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3 * (1 - t) * (1 - t) * t * b +
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3 * t * t * (1 - t) * c +
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t * t * t * d
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);
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}
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exports.mix = mix;
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exports.ratio = ratio;
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exports.barmixL = barmixL;
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exports.barmixM = barmixM;
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exports.barmixR = barMixR;
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exports.linreg = linreg;
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exports.clamp = clamp;
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exports.fallback = fallback;
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exports.bez2 = bez2;
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exports.bez3 = bez3;
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