ComputerCraft "every Nth" egg distributor

local deplSide = "right" -- Transposer leading to the deployer
local chstSide = "left" -- Transposer leading to catch chest
local holdSide = "top" -- Input to shut off the deployer and send all output to catch chest
local offSide = "back" -- Input to halt activity entirely
local deployN = 4 -- Send N eggs to the deployer for every one that gets saved
local countN = 1 -- Start the counter at 1
local version = "1.2"

local function redPulse( side )
    redstone.setOutput( side, true )
    sleep(0.1)
    redstone.setOutput( side, false )
end


local function main()
    print("SkunkWorks Logistics")
    print("Egg processing routine v"..version)
    print("If routine has been aborted, run 'eggtimer' to restart it")
    while true do
        if rs.getInput( offSide ) then
            os.pullEvent("redstone") -- Wait for a redstone input to change, otherwise stop looping
        else
            if rs.getInput( holdSide ) then
                redPulse( chstSide )
            else
                countN = countN + 1
                if countN >= deployN then
                    redPulse( chstSide)
                    countN = 1 -- Reset the counter
                else
                    redPulse(deplSide)
                end
            end
        sleep(1)
        end
    end
end


main()