xjurko

let creds = importModule("creds")


function distanceCrow(latFrom, longFrom, latTo, longTo) {
	const R = 6371e3; // metres
	const φ1 = latFrom * Math.PI/180; // φ, λ in radians
	const φ2 = latTo * Math.PI/180;
	const Δφ = (latTo-latFrom) * Math.PI/180;
	const Δλ = (longTo-longFrom) * Math.PI/180;