#[macro_export]
macro_rules! configure_sets {
	(
		$app: expr,
		$system_set: expr,
		$condition: expr
		) => {
		$app.configure_sets(PreUpdate, $system_set.run_if($condition))
			.configure_sets(Update, $system_set.run_if($condition))
			.configure_sets(PostUpdate, $system_set.run_if($condition))
			.configure_sets(Last, $system_set.run_if($condition));
		$app.configure_sets(FixedPreUpdate, $system_set.run_if($condition))
			.configure_sets(FixedUpdate, $system_set.run_if($condition))
			.configure_sets(FixedPostUpdate, $system_set.run_if($condition));
	};
}