/**
 * Calculates the Euclidean distance between two coordinate points.
 * Coordinates are [x, y] pairs (map units).
 */
export function calculateDistance(
  coord1: [number, number],
  coord2: [number, number],
): number {
  const [x1, y1] = coord1;
  const [x2, y2] = coord2;
  return Math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2);
}

/**
 * Checks if two coordinates are within a given proximity threshold.
 */
export function isWithinProximity(
  coord1: [number, number],
  coord2: [number, number],
  threshold: number,
): boolean {
  return calculateDistance(coord1, coord2) <= threshold;
}