greybox level, general progress

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might have found a workflow that i like for greyboxing :)

still haven't completly finialised the movement code (collision not perfect) but the main body of logic behind the step over state is done, and added basics of swiming for fun.

going to need to make some non trivial changes to render engine to get alpha sorting to work nice (it has depth read write flags and renders on sort of object by near surface of bounding sphere, it kind of needs alpha layers though, water in level is a pain as it tend to have a large bounding sphere)

do enjoy the art content, but more comfortable programming, art is so draining.