CowKiller

while true do
    print("water ON")
    redstone.setOutput("back",true)
    sleep(0.3)
    redstone.setOutput("back",false)
    for i=1,16 do
    turtle.select(i)
        if turtle.getItemCount()~=nil and turtle.getItemCount()~="0" and turtle.getItemCount()~=0 then
            if turtle.getItemDetail().name=="minecraft:wheat" then
                for i=1,20 do
                    turtle.place()
                    print("cow feeded")
                end
            end
        end
    end
    print("water OFF")
    redstone.setOutput("back",true)
    sleep(0.3)
    redstone.setOutput("back",false)
    sleep(1)
    print("piston ON")
    redstone.setOutput("left",true)
    sleep(0.5)
    print("piston OFF")
    redstone.setOutput("left",false)
    sleep(10)
    print("lava OFF")
    redstone.setOutput("right",true)
    sleep(0.1)
    redstone.setOutput("right",false)
    sleep(1)
    print("lava OFF")
    redstone.setOutput("right",true)
    sleep(0.1)
    redstone.setOutput("right",false)
    sleep(10)
end