public StorageCrane(AssetManager assetManager) {
        super("Opslagkraan " + numberStorageCranes++ + " ");

        Box boxshape1 = new Box(Vector3f.ZERO, 1f, 4f, 0.5f);
        Box boxshape2 = new Box(Vector3f.ZERO, 1f, 0.5f, 4f);

        Geometry side1 = new Geometry("A Textured Box", boxshape1);
        Geometry topside = new Geometry("A Textured Box", boxshape2);
        Geometry side2 = new Geometry("A Textured Box", boxshape1);

        Material mat_tex = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        mat_tex.setColor("Color", ColorRGBA.Blue);

        side1.setMaterial(mat_tex);
        side2.setMaterial(mat_tex);
        topside.setMaterial(mat_tex);

        attachChild(side1);
        attachChild(side2);
        attachChild(topside);

        side1.setLocalTranslation(0, 4f, 0);
        side2.setLocalTranslation(0, 4f, 8f);
        topside.setLocalTranslation(0, 8, 4);
    }