* Hopefully make singularity shader warping resolution-invariant
This may or may not fix intensity issues
* Fix singularity 'zero velocity' check
It got stuck in a corner. Twice. I really thought I'd fixed that.
* Make it easier to move around various power stuff by shrinking their AABBs a little and making singulo generator a circle
* Changes to some machine prototypes to reduce duplication of collision changes (#1)
* Changes to some machine prototypes to reduce duplication of collision changes
* BaseMachine.BaseMachineUnpowered -> BaseMachine.BaseMachinePowered
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