Computercraft Turtle Tree Tap

-- Turtle Tree Taping program
-- for use in a tap turtle on a wall of IC2's rubber trees.
-- By Chronno S. Trigger  Http://www.youtube.com/chronnotrigg
-- ------------------------------------------------------------
-- Use: tap x z
-- x = number of blocks over
-- z = number of blocks up
-- Known issues:
-- Since it's impossible to get the turtle to detect if a rubber tree block is ready
-- if you use the program too soon after the last run, you will lose your tap points.

local size = {...}

function tapUp()
    turtle.dig()
    for i=2,size[2] do
        turtle.up()
        turtle.dig()
    end
    for i=2,size[2] do
        turtle.down()
    end
end

function moveRight()
    turtle.turnRight()
    turtle.forward()
    turtle.dturnLeft()
end

function comeBack()
    turtle.turnLeft()
    for i=2,size[1] do
        turtle.forward()
    end
    turtle.turnRight()
end

tapUp()
for i=2,size[1] do
    moveRight()
    tapUp()
end
comeBack()