Proxmy framemotor

shell.run("clear")
os.loadAPI("ocs/apis/sensor")
mon = peripheral.wrap("front")
mon.clear()
mon.setTextScale(0.5)
rs.setOutput("left",false)
rs.setOutput("right",false)
sleep(0.5)
sen = sensor.wrap("bottom")
gx,gy = mon.getSize()
while true do
s = sen.getTargets()
yx = 2
mon.clear()
f = 0

for v,k in pairs(s) do
  s1 = sen.getTargetDetails(v)



  x = s1.Position.X
  y = s1.Position.Y
  z = s1.Position.Z
  mon.setCursorPos(2,yx)
  mon.write(v)
  mon.setCursorPos(18,yx)
  mon.write("X: " .. string.format("%d",x))
  mon.setCursorPos(24,yx)
  mon.write("Y: " .. string.format("%d",y))
  mon.setCursorPos(30,yx)
  mon.write("Z: " .. string.format("%d",z))

  if x < 3 and x > -3 and z > -12 and z < 8 then
        f = f + 1
        n = "INSIDE"
   else
       n = "OUTSIDE"
   end
   mon.setCursorPos(36,yx)
   mon.write("Position: " .. n)
   mon.setCursorPos(54,yx)
   mon.write("Held Item: " .. s1.HeldItem.Name)
   yx = yx + 1
end

if f == 0 then
  for b = 1,3,1 do
  rs.setOutput("right",true)
  sleep(0.5)
  rs.setOutput("right",false)
  sleep(0.5)

  --mon.setCursorPos(gx-5,gy)
  --mon.write("CLOSE")
  end
else
  for b = 1,3,1 do
  rs.setOutput("left",true)
  sleep(0.5)
  rs.setOutput("left",false)
  sleep(0.5)
  --mon.setCursorPos(gx-5,gy)
  --mon.write("OPEN")
end
sleep(0.5)
end
end