Mining turtle 10x10x30 v3

local function moveToStart()
    turtle.turnRight()
    turtle.turnRight()
    for _ = 1, 10 do
        turtle.forward()
    end
    turtle.turnLeft()
    for _ = 1, 10 do
        turtle.forward()
    end
    turtle.turnLeft()
end

local function moveForward()
    while not turtle.forward() do
        turtle.dig()
    end
end

local function moveToNextLayer()
    turtle.turnRight()
    moveForward()
    turtle.turnLeft()
end

local function mineLayer()
    for y = 1, 10 do
        for x = 1, 10 do
            dig()
            refuel()
            if x < 10 then
                moveForward()
            end
        end
        if y < 10 then
            if y % 2 == 1 then
                turtle.turnRight()
                moveForward()
                turtle.turnRight()
            else
                turtle.turnLeft()
                moveForward()
                turtle.turnLeft()
            end
        end
    end
end

local function mineDownAndUp()
    for i = 1, 30 do
        mineLayer()
        if i % 10 == 0 then
            findChestAndEmptyInventory()
            moveToStart()
        end
        if i < 30 then
            moveDown()
            moveToNextLayer()
        end
    end
    for _ = 1, 30 do
        moveUp()
    end
end

initialRefuel()
print("Zahajuji tezbu tunelu 10x10x30...")
mineDownAndUp()
print("Tezba tunelu dokoncena.")