Sheep

function shear()
    turtle.turnRight()
    if turtle.forward() then
        turtle.place()
        turtle.back()
    else
        turtle.place()
    end
    turtle.turnLeft()
end

function sheep()
    for x=1, 7 do
        shear()
        turtle.forward()
        turtle.forward()
    end
    turtle.turnRight()
    if turtle.forward() then
        turtle.place()
        turtle.back()
    else
        turtle.place()
    end
    turtle.turnRight()
    for x=1, 8 do
        shear()
        turtle.forward()
        turtle.forward()
    end
end

function store()
    for i=1, 15 do
        turtle.select(i)
        turtle.drop()
    end
    turtle.select(16)
end

function tool()
    if turtle.getItemCount(16) == 0 then
        turtle.select(16)
        turtle.suckDown()
    end
end

function sheepFarm()
    for x=1, 12 do
        tool()
        turtle.turnLeft()
        turtle.turnLeft()
        turtle.forward()
        sheep()
        store()
        sleep(300)
    end
end

sheepFarm()