turtle mine

xSize = 10
ySize = 2
zSize = 10

currentX = 0
currentY = 0
currentZ = 0

facingForward = true

function refuel()
    if turtle.getItemCount(1) == 0 then
        print("Ran out of fuel :(")
        return false
    end

    if turtle.getFuelLevel() <= 0 then
        turtle.refuel(1)
        print("REFUELED")
        return true
    end

    return true
end

function move()
    turtle.dig()
    if currentX == xSize - 1 then
        if facingForward then
            turtle.turnRight()
            turtle.dig()
            turtle.forward()
            turtle.turnRight()
        else
            turtle.turnLeft()
            turtle.dig()
            turtle.forward()
            turtle.turnLeft()
        end

        currentX = 0
        currentZ = currentZ + 1
        facingForward = not facingForward
        print("Row finished!")
    else
        turtle.forward()
        currentX = currentX + 1
    end
end

local running = true

while running do
    running = refuel()
    move()

    if currentZ == zSize - 1 then
        running = false
    end
end

print("Finished!")