engine Directory Reference

Directories
	tests
	upgrade

Files
	bank.php
	More object oriented wrappers around parts of the Moodle question bank.
	datalib.php
	Code for loading and saving question attempts to and from the database.
	lib.php
	This defines the core classes of the Moodle question engine.
	questionattempt.php
	This file defines the question attempt class, and a few related classes.
	questionattemptstep.php
	This file defines the question attempt step class, and a few related classes.
	questionusage.php
	This file defines the question usage class, and a few related classes.
	renderer.php
	Renderers for outputting parts of the question engine.
	states.php
	This defines the states a question can be in.