$time:0 $duration:80.0 $phaseShift:0.25 $invert:0 $signalType:1 SignalGenerator(<-time <-frequency <-phaseShift <-invert <-signalType) ->sigValue <-time 1 add ->time #Let's use the result to spawn some creeper in a range of cells: AddCreeper(<-time <-mapX mod, <-sigValue 20.0 mul 20 add, 1) :Once 1.0 <-duration div ->frequency GetMapSize ->mapZ ->mapX