This custom shortcode can be used to display myCRED Links which grants points to a user only if the current user has a particular badge. Requires the badge_id="" attribute to be used and contain the Badge ID to check for.

mycred-link-if-user-has-badge

add_shortcode( 'mycred_conditional_badge_link', 'mycred_render_conditional_badge_link' );
function mycred_render_conditional_badge_link( $atts, $content ) {
 
	// Make sure myCRED is installed
	if ( ! function_exists( 'mycred' ) ) return 'myCRED is not installed';
 
	// Not applicable for visitors
	if ( ! is_user_logged_in() ) return;
 
	$atts = shortcode_atts( array(
		'id'          => '',
		'rel'         => '',
		'class'       => '',
		'href'        => '',
		'title'       => '',
		'target'      => '',
		'style'       => '',
		'badge_id'    => 0,
		'ctype'       => 'mycred_default',
		'min_balance' => 0,
		'hreflang'    => '',   // for advanced users
		'media'       => '',   // for advanced users
		'type'        => ''    // for advanced users
	), $atts );
 
	// Check that user has badge
	if ( $atts['badge_id'] > 0 && function_exists( 'mycred_get_users_badges' ) ) {
 
		$mycred = mycred( $atts['ctype'] );
		$cui = get_current_user_id();
		if ( $mycred->exclude_user( $cui ) ) return '';

		$users_badges = mycred_get_users_badges( $cui );

		// If user does not have this badge
		if ( ! in_array( absint( $atts['badge_id'] ), $users_badges ) )
			return '';
 
	}
 
	// Let myCRED run the mycred_link shortcode.
	return mycred_render_shortcode_link( $atts, $content );

}