CC Redstone OR Gate

local tArgs = {...}

--

if #tArgs ~= 0 then
   print("Usage: orGate")
   print("  -- the side opposite the screen is output")
   print("  -- output is hot if any side (front,left,right) is hot")
   return
end

local sides = toNumber(tArgs[1])

local function testSide(side)
   return ( (redstone.getInput(side)) or (redstone.getBundledInput(side) >0) )

end


while true do

   if ( testSide("right") or testSide("left") or testSide("front") ) then
     redstone.setOutput("back",true)
     redstone.setBundledOutput("back",255)
   else
     redstone.setOutput("back",false)
     redstone.setBundledOutput("back",0)
   end

   os.pullEvent("redstone")
end