/*========================================
        Texture Packs
========================================== */
add_action('init', 'texturepacks_register');
function texturepacks_register() {

    $labels = array(
        'name' => _x('Texture Packs', 'post type general name'),
        'singular_name' => _x('Texture Pack', 'post type singular name'),
        'add_new' => _x('Add New', 'Texture Pack'),
        'add_new_item' => __('Add New Texture Pack'),
        'edit_item' => __('Edit Texture Pack'),
        'new_item' => __('New Texture Pack'),
        'view_item' => __('View Texture Pack'),
        'search_items' => __('Search Texture Pack'),
        'not_found' =>  __('Nothing found'),
        'not_found_in_trash' => __('Nothing found in Trash'),
        'parent_item_colon' => ''
    );

    $args = array(
        'labels' => $labels,
        'public' => true,
        'publicly_queryable' => true,
        'show_ui' => true,
        'query_var' => true,
        'rewrite' => true,
        'capability_type' => 'post',
        'hierarchical' => false,
        'menu_position' => 5,
        'supports' => array('title')
      );

    register_post_type( 'texturepacks' , $args );
}


add_filter( 'cmb_meta_boxes', 'cmb_sample_metaboxes' );
/**
 * Define the metabox and field configurations.
 *
 * @param  array $meta_boxes
 * @return array
 */
function cmb_sample_metaboxes( array $meta_boxes ) {

$prefix = '_cmb_';

    $meta_boxes['test_metabox'] = array(
        'id'         => 'test_metabox',
        'title'      => __( 'Test Metabox', 'cmb' ),
        'pages'      => array( 'page', 'texturepacks' ), // Post type
        'context'    => 'normal',
        'priority'   => 'high',
        'show_names' => true, // Show field names on the left
        // 'cmb_styles' => true, // Enqueue the CMB stylesheet on the frontend
        'fields'     => array(
            array(
                'name' => __( 'Test Text', 'cmb' ),
                'desc' => __( 'field description (optional)', 'cmb' ),
                'id'   => $prefix . 'test_text',
                'type' => 'text',
                // 'repeatable' => true,
                // 'on_front' => false, // Optionally designate a field to wp-admin only
            ),
            ));
            }