add engine, modify scene construction
update display to use engine
add scene3 to init, fix display
update systems to use engine
fix color conversion default value
switch transform to use hump class syntax
add makefile
fix gravity physics
move scene3 changes into scene2
update scene1 to use new scene format
add object parenting to scene1
set scene1
add messaging with flush
add directory for shape generators
switch to new messaging system
switch to new messaging system
switch to new messaging system
add message flushing
add position and rotation extraction for transformations (using matrix)
update makefile