import type { Location } from "@deadhead/content";
import { locationPosition } from "./positions";

/** Straight-line distance between two locations, in million km; fixed (decision 0.5.93). */
export function routeDistance(from: Location, to: Location): number {
  const a = locationPosition(from);
  const b = locationPosition(to);
  return Math.hypot(b.x - a.x, b.y - a.y);
}