Method strobe

src/main/java/field/graphics/Scene.java:57–66

utility, takes a consumer and returns a version that runs only once every "count" iterations

(Consumer<T> c, int count)

     */

    static public <T> Consumer<T> strobe(Consumer<T> c, int count) {
        return new Consumer<T>() {
            int tick = 0;

            @Override
            public void accept(T t) {
                if (tick++ % count == 0) c.accept(t);
            }
        };
    }

    static public Perform perform(int pass, Supplier<Boolean> action) {
        return new Perform() {