saving progress on database class. need to finish and test loading classes. Link loaded classes to current dynamic entity loading.  Figure out how to do unique units for player (overwrite values of associated class later?). Begin work on advanced map loading.  Cells now have a collection of groups to draw.  The idea is to have a base tile which is a theme like desert/grass/forest/cave and then additional modifiers drawn on top such as city, forest, mountain, etc.