Summary

A system that aims to wrap the main reusable functionality of an undo system

Fields

OnRedo	Called when a redo is run
OnUndo	Called when an undo is run

Properties

Back	Backwards stack
Forward	Forwards stack, gets cleared when a new undo is added

Methods

Initialize	Clear the history and take an initial snapshot. You should call this right after a load, or a new project.
Insert
Redo	Instigate a redo, returns true if we found a successful undo
SetSnapshotFunction
Snapshot
Undo	Instigate an undo. Return true if we found a successful undo