/**
 *
 */
function zero() {
  return [0, 0, 0];
}
function one() {
  return [1, 1, 1];
}
function add(a, b) {
  return [a[0] + b[0], a[1] + b[1], a[2] + b[2]];
}
function addValue(a, n) {
  return [a[0] + n, a[1] + n, a[2] + n];
}
function sub(a, b) {
  return [a[0] - b[0], a[1] - b[1], a[2] - b[2]];
}
function subValue(a, n) {
  return [a[0] - n, a[1] - n, a[2] - n];
}
function scale(a, n) {
  return [a[0] * n, a[1] * n, a[2] * n];
}
function dot(a, b) {
  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
}
function cross(a, b) {
  var x = a[1] * b[2] - a[2] * b[1];
  var y = a[2] * b[0] - a[0] * b[2];
  var z = a[0] * b[1] - a[1] * b[0];
  return [x, y, z];
}
/**
 * Calculate the squared length of a vector.
 * Use this when comparing two vectors instead of length, as it's more efficient (no sqrt)
 */

function lengthSqr(a) {
  return a[0] * a[0] + a[1] * a[1] + a[2] * a[2];
}
/**
 * Calculate the length of a vector.
 * If you only need to compare lenghts, consider using the more efficient lengthSqr
 */

function length(a) {
  return Math.sqrt(a[0] * a[0] + a[1] * a[1] + a[2] * a[2]);
}
function distance(a, b) {
  return Math.sqrt((a[0] - b[0]) * (a[0] - b[0]) + (a[1] - b[1]) * (a[1] - b[1]) + (a[2] - b[2]) * (a[2] - b[2]));
}

var vector3 = /*#__PURE__*/Object.freeze({
  __proto__: null,
  zero: zero,
  one: one,
  add: add,
  addValue: addValue,
  sub: sub,
  subValue: subValue,
  scale: scale,
  dot: dot,
  cross: cross,
  lengthSqr: lengthSqr,
  length: length,
  distance: distance
});

export { add as a, addValue as b, subValue as c, scale as d, dot as e, cross as f, length as g, distance as h, lengthSqr as l, one as o, sub as s, vector3 as v, zero as z };