registerCreatureGenerators()
Register the creature generator with the engine registry.
realSizeAt()
Whether atScale builds this creature at its real size in a world of voxelsPerMetre. Below minVoxelsPerMetre it cannot: atScale keeps shape.size at 0.7 so the legs stay two voxels thick, and the creature comes out larger than life (a rat is 0.86 m long at 50 vox/m, 2.15 m at 20). It is also false...
skinFor()
Default role colours for a coat: fur tones and a belly mixed towards the coat's light belly colour by belly (0..1), eyes red when redEyes, and shared skin, claw and interior colours.