------Tunneling Automaton - V2------

----Variables----

t = turtle
orientation = 1

----Basic Controls----

--Turning--
function turnLeft()
    if orientation == 4 then
        orientation = 0
    else
        orientation = orientation + 1
    end
    t.turnLeft()
end
function turnRight()
    if orientation == 1 then
        orientation = 4
    else
        orientation = orientation - 1
    end
    t.turnRight()
end

function reorient()
    if orientation == 2 then
        turnLeft()
    elseif orientation == 3 then
        turnLeft()
        turnLeft()
    elseif orientation == 4 then
        turnRight()
    end
end

--Digging--
function digUp()
    t.digUp()
end
function digDown()
    t.digDown()
end
function digForward()
    t.digForward()
end
function digLeft()
    turnLeft()
    digForward()
end
function digRight()
    turnRight()
    digForward()
end

--Moving--
function moveUp()
    t.up()
end
function moveDown()
    t.down()
end
function moveForward()
    t.forward()
end
function moveLeft()
    turnLeft()
    moveForward()
end
function moveRight()
    turnRight()
    moveFoward()
end

--Digging and Moving--
function goUp()
    if t.detectUp() then
        digUp()
        moveUp()
    else
        moveUp()
    end
end
function goDown()
    if t.detectDown() then
        digDown()
        moveDown()
    else
        moveDown()
    end
end
function goForward()
    if t.detect() then
        digForward()
        moveForward()
    else
        moveForward()
    end
end
function goRight()
    turnRight()
    if t.detect() then
        digForward()
        moveForward()
    else
        moveForward()
    end
end
function goLeft()
    turnLeft()
    if t.detect() then
        digForward()
        moveForward()
    else
        moveForward()
    end
end

----Inventory----
--Check if any slots are free--
function freeSlots()
    num = 16
    spaceLeft = false
    while num > 0 do
        if t.getItemCount(num) == 0 then
            spaceLeft = true
        end
        num = num - 1
    end
    return spaceLeft
end

function placeStorageChest()
    t.select(1)
    digUp()
    t.placeUp()
end
function placeFuelChest()
    t.select(2)
    digUp()
    t.placeUp()
end
function placeChunkLoader()
    t.select(3)
    digUp()
    t.placeUp()
end

function getFuel()
    t.select(2)
    t.suckUp(10)
end
function store()
    num = 16
    while num > 3 do
        t.dropUp()
        num = num - 1
    end
end
function fuel()
    t.select(2)
    t.refuel()
end

----Mining----
function shaft
//ADD mining shaft, add check fuel left and refill, add chunk loaders
----Main Loop----
function main()

end
--Run--
main()