Map Generator and Enemy Movement

I have made the map generator as well as some sample enemies for Elemental Defense. I chose to use a procedural generated map to keep gameplay evolving and to minimize the amount of hand crafted levels. The enemies will be hand crafted sprites, but there is just placeholder art in there for now. The red enemies will be normal minions, and the blue enemies will be bigger and stronger. Orange enemies will be weaker and faster. I have 3 towers placed in the map to show how the enemies get killed and how easy or difficult it is to defeat each type.