Method ZERO

docs/app/js/sanddance-app.js:70194–70200

()

let ZERO;
class Vector3 extends (0, _vectorDefault.default) {
    static get ZERO() {
        if (!ZERO) {
            ZERO = new Vector3(0, 0, 0);
            Object.freeze(ZERO);
        }
        return ZERO;
    }
    constructor(x = 0, y = 0, z = 0){
        super(-0, -0, -0);
        if (arguments.length === 1 && (0, _common.isArray)(x)) this.copy(x);