add listeners and emitter on velocity events
add listeners and emitter on velocity events

Elao/curvytron,Elao/curvytron-arcade,Curvytron/curvytron,Curvytron/curvytron,Elao/curvytron,Wohops/curvytron,coredump-ch/curvytron,Elao/curvytron-arcade,coredump-ch/curvytron,Wohops/curvytron,lutangar/curvytron,lutangar/curvytron,Curvytron/curvytron-arcade,Curvytron/curvytron-arcade