InputTrait
constInputTrait:Trait<{angles: () =>number[];axes: () =>number[];buttons:number;changes: () =>number[];vectors: () =>number[]; }>
What her player last sent her, a step’s input: the inputs her game
declares, the character’s move, heading and jump among them where it
lists characters(). Each character holds her own, so a room steps
every player’s at once. Kept by the room and her own page, and streamed
to nobody: what another page draws of it, her strafe and her aim,
travels in her PoseTrait, and an input declared seenByAll in her
SeenInputTrait.