Chatradius?

function onPlayerChatting( message, m_type )
	if(m_type == 1)
		local x, y, z = getElementPosition(source)
		local radius = createColSphere(x,y,z)
		local pID = getElementsWithinColShape(radius,"player")
		for index, spieler in ipairs ( pID ) do
			outputChatBox(getPlayerName(source).."#FEFEFE:"..message..,index,0,0,0,true)
		end		
	end
end


addEventHandler("onPlayerChat",getRootElement(),onPlayerChatting)