Method setQuadtree

src/main/java/mudmap2/backend/Layer.java:126–128

Use this only to set an optimized quadtree after construction @param center_x @param center_y

(final int center_x, final int center_y)

     * @param center_y
     */
    public void setQuadtree(final int center_x, final int center_y) {
        elements = new Quadtree<>(center_x, center_y);
    }

    /**
     * Gets the center x coordinate (estimation)