Function add

docs/tests/v2/es6/js/sanddance.js:16091–16095

* Adds two vec2's * * @param {vec2} out the receiving vector * @param {vec2} a the first operand * @param {vec2} b the second operand * @returns {vec2} out

(out, a, b)

function add(out, a, b) {
  out[0] = a[0] + b[0];
  out[1] = a[1] + b[1];
  return out;
}
/**
 * Subtracts vector b from vector a
 *