Method constructor

docs/app/js/sanddance-app.js:71097–71105

(array, ...args)

        return INDICES;
    }
    constructor(array, ...args){
        super(-0, -0, -0, -0, -0, -0, -0, -0, -0);
        if (arguments.length === 1 && Array.isArray(array)) this.copy(array);
        else if (args.length > 0) this.copy([
            array,
            ...args
        ]);
        else this.identity();
    }
    copy(array) {
        this[0] = array[0];
        this[1] = array[1];