New turbine provides continuous power at slightly higher on the
tech tree (cooked stone and iron), in exchange for taking up a lot
of space, and being a little dangerous (breaks apart violently if
jammed while running).
The new sz_items mod (1) handles "loose items" by combining them
into "pile of stuff" nodes to help performance, and (2) replaces
bones with loose item spews, which will ultimately become piles
of stuff. Piles are not competitive with chests as you cannot
organize items within them; moving anything around stirs the whole
pile.
Added working rotary power engine, including a rudimentary, but
working axle and gearbox implementation. Need textures, recipes,
and some interactive features like gearboxes disengaging when
inhibited by mesecon power.
Oxygen is consumed by being underwater or suffocated by a solid
block, restored by resting and breathing. Climbing (jumping) and
swimming (or wading) tend to use stamina too, so players are
encouraged to build infrastructure, like bridges and stairs, to
avoid these penalties.