Coder Gautam codergautam

the best way to predict the future is to 𝗯𝘂𝗶𝗹𝗱 it

codergautam / betterAngleLerp.js

Last active October 19, 2022 02:37 — forked from shaunlebron/angleLerp.js

The best way to interpolate 2D angles

	//note: degrees only

	const lerp = (start,end,amt) => start+(end-start)*amt
	const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
	const repeat = (t, m) => clamp(t - Math.floor(t / m) * m, 0, m);

	function lerpTheta(a, b, t) {
	const dt = repeat(b - a, 360);
	return lerp(a, a + (dt > 180 ? dt - 360 : dt), t);
	}