PHYS-18 #time 40m #comment Got control_center grounded suprisingly quickly, with only a few disabled functions/buttons.
PHYS-18 #time 1h #comment TOTALLY stonewalled trying to find out how to assign a non-static callback function to some of the UI elements.  Damnit.
PHYS-18 #time 2h #comment Finally figured out why I couldn't access UserData in the callback function. I set the UserData for the dec_dt_button, but then was only pressing the inc_dt_button. Simply astounding.
PHYS-18 #time 2h 30m #comment All functions now working in control_center! Not relying on any static instances/members. The only static things left are the callback functions, which is acceptable/necessary. Damn fine lunchbreak coding.
PHYS-15 #time 25M #comment All simulation initilizations now returning shared_ptr's to Simulations.