This would be event that you can use to make a radar here is what it would look like in event form:
OnAtive:Self:RadiusImpulse
OnRaduisReturn:Self:IfDerection: North
OnVarabletrue:Client: Unknowen Object to north
OnRaduisReturn:Self:IfDerection: East
OnVarabletrue:Client: Unknowen Object to east
OnRaduisReturn:Self:IfDerection: South
OnVarabletrue:Client: Unknowen Object to South
OnRaduisReturn:Self:IfDerection: West
OnVarabletrue:Client: Unknowen Object to West