September dev log: adding skin swapping

This month we added a material and color user interface. Every creature has its own skin, and now that skin can be applied to others and recolored. Here's a quick video: [previewyoutube=RTE93i7wFLM;full][/previewyoutube] … I have a personal compulsion to make everything neon, but normal colors work just fine too. This was pretty complex to set up because of all the small details: tying into our evolve system; making decisions for sub-parts and special cases; and accounting for a variety of shaders. All that said, the feature was completed within the allotted time (there are still future improvements to make, of course). Other things we completed this month: [list] [*] New creatures: tortoise and snake [*] Performance testing and work within scenes to improve FPS for low-end devices [*] Some dance animations (just for fun… for now) [*] Continued improvements on AI movement via the NavMesh [*] Started on ambient enviro sounds, bugfixes for existing creature sounds [/list] Headed into October, we’re working on controller implementation, combat polish, and some new environments. By the end of the month, we'll also revamp our Steam store page with a bunch of new assets -- exciting! Thanks for reading!