27 lines
714 B
JavaScript
27 lines
714 B
JavaScript
export function mix(a, b, p) {
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return a + (b - a) * p;
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}
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export 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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export 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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export 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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export 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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export 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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export 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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