I just committed a few map editor undo/redo fixes to the GAE svn.
* Resets are now backed up.
* Another bug in the object/resource undo is fixed.
* Player location changes don't create a blank undo point. Player location changes are not handled by "undo" since moving the player position can't create permanent damage to the rest of the map.
I have also noticed a few issues with some undo points disappearing when undoing and redoing between different changes. So just remember the undo button is mostly stable, but, once you press it you
might not be able to redo it.
When, during the course of map design, should one choose to use the gradient tool and not the original brush?
You would use the gradient tool when you're making more drastic changes in terrain and want smoother transitions between heights. ie. changing terrain from 15 to 5 in a single stroke... If
you are looking for it the changes
are noticeable in game. But, you are still right, most people probably wouldn't notice a difference.