AppleScript for Terminal.app to work like Visor.

VisorTerminal.workflow

on run {input, parameters}
	set termWinCnt to 0
	tell application "Terminal"
		if it is running then
			set termWinCnt to number of windows
			
			if termWinCnt = 0 then
				reopen
			else
				tell application "System Events"
					if visible of application process "Terminal" = false then
						set visible of application process "Terminal" to true
						tell application "Terminal" to activate
					else
						set visible of application process "Terminal" to false
					end if
				end tell
			end if
		else
			activate
		end if
	end tell
end run