MiningTurtle mining script

function main()

    checkForGravel("forward")
    turtle.dig()
    turtle.forward()

    checkForGravel("up")
    turtle.digUp()

    turtle.digDown()

    setTorch()

    local counter = 0
    while counter < 10
    do
        digLeft()
        digRight()
        nextRow()

        counter = counter + 1
    end
end

function nextRow()

    turtle.checkForGravel("forward")
    turtle.dig()
    turtle.forward()

    turtle.checkForGravel("forward")
    turtle.dig()
    turtle.forward()

    setTorch()

end

function checkForGravel(direction)

    if direction == "up" then
        if turtle.inspectUp() == 13
        then
            reactToGravel(direction)
        end
    else
        if direction == "forward"
        then
            if turtle.inspect() == 13
            then
                reactToGravel(direction)
            end
        end
    end
end

function reactToGravel(direction)

    if direction == "up" then
        turtle.digUp()
        checkForGravel("up")
    end

    if direction == "forward" then
        turtle.dig()
        checkForGravel("forward")
    end

end

function setTorch()

    turtle.select(1)
    turtle.placeDown()

end

function digLeft()

    turtle.turnLeft()
    local counter = 0

    while counter < 7
    do
        turtle.dig()
        checkForGravel("forward")
        turtle.forward()
        turtle.digUp()
        turtle.digDown()
        checkForGravel("up")

        counter = counter + 1
    end

    turtle.turnLeft()
    turtle.turnLeft()

    turtle.down()

    while counter >= -1
    do
        if turtle.detectDown() == false then
            turtle.select(2)
            turtle.placeDown()
            turtle.forward()
        end

        counter = counter - 1

    end

    turtle.up()
    turtle.forward()
    turtle.turnLeft()
end

function digRight()

    turtle.turnRight()
    local counter = 0

    while counter < 7
    do
        turtle.dig()
        checkForGravel("forward")
        turtle.forward()
        turtle.digUp()
        turtle.digDown()
        checkForGravel("up")

        counter = counter + 1
    end

    turtle.turnRight()
    turtle.turnRight()

    turtle.down()

    while counter >= -1
    do
        if turtle.detectDown() == false
        then
            turtle.select(2)
            turtle.placeDown()
            turtle.forward()
        end

        counter = counter - 1

    end

    turtle.up()
    turtle.forward()
    turtle.turnRight()

end

function checkStorage()

    local counter = 1

    while counter <= 16
    do
        if turtle.getItemCount(counter) < 64
        then
            return true
        end

        counter = counter + 1
    end
end

main()