computer craft touch screen

m=peripheral.wrap("right")

m.setBackgroundColor(colors.black)

m.clear()

function wt(x,y,t,c)
  m.setBackgroundColor(c)  --use {colors.black} for c
  m.setCursorPos(x,y)
  m.write(t)  --use {"your text here"} for t
end



function Touch()
  if mouseWidth > 1 and mouseWidth < 8 and mouseHeight == 2 then
    redstone.setOutput("right",true)
  elseif mouseWidth > 1 and mouseWidth < 8 and mouseHeight == 4 then
    redstone.setOutput("right",false)
  end
end

repeat
   event,p1,p2,p3 = os.pullEvent()
   if event=="monitor_touch" then
     mouseWidth = p2
     mouseHeight = p3
     Touch()
    end
until event=="char" and p1==("x") --press x to exit