package mightypork.gamecore.util.math.constraints; /** *
* Interface for constraints that support digests. Digest is a small data object * with final fields, typically primitive, used for processing (such as * rendering or other very frequent operations). *
** Taking a digest is expensive, so if it needs to be done often and the value * changes are deterministic (such as, triggered by timing event or screen * resize), it's useful to cache the last digest and reuse it until such an * event occurs again. *
** Implementing class typically needs a field to store the last digest, a flag * that digest caching is enabled, and a flag that a digest is dirty. *
* * @author Ondřej Hruška (MightyPork) * @param* Toggle digest caching. *
*
* To trigger update of the cache, call the poll()
method.
*