Quarry

n = 0

x = 0

y = 0

z = 0

function getCount()
    c = 0
    for i = 2, 15, 1 do
        c = c + turtle.getItemCount(i)
    end
    return c
end

function chest()
    turtle.digUp()
    turtle.select(1)
    turtle.placeUp()
    for a = 2,16,1 do
        turtle.select(a)
        turtle.dropUp()
    end
    n = 0
    turtle.select(1)
end

function printCoords()
    print("x = ", x)
    print("y = ", y)
    print("z = ", z)
end

function refuel()
    turtle.select(16)
    turtle.refuel()
    turtle.select(1)
end

function mine()
    while y < h do
        turtle.digDown()
        if turtle.down() then
            y = y + 1
            printCoords()
        end
        while z < l - 2 do
            if turtle.forward() then
                z = z + 1
                printCoords()
            end
            turtle.dig()
            getCount()
            if c > 512 then
                chest()
            end
            print(c)
            refuel()
            print("Fuel level = ", turtle.getFuelLevel())
        end
        while z > 0 do
            if turtle.back() then
                z = z - 1
                printCoords()
            end
        end
        while x < w - 1 do
            if x < w - 1 then
                turtle.turnRight()
                turtle.dig()
                if turtle.forward() then
                    x = x + 1
                    printCoords()
                end
                turtle.turnLeft()
            end
            turtle.dig()
            while z < l - 2 do
                if turtle.forward() then
                    z = z + 1
                    printCoords()
                end
                turtle.dig()
                getCount()
                if c > 512 then
                    chest()
                end
                print(c)
                refuel()
                print("Fuel level = ", turtle.getFuelLevel())
            end
            while z > 0 do
                if turtle.back() then
                    z = z - 1
                    printCoords()
                end
            end
        end
        turtle.turnLeft()
        while x > 0 do
            if turtle.forward() then
                x = x - 1
                printCoords()
            end
        end
        turtle.turnRight()
    end
    while y > 0 do
        if turtle.up() then
            y = y - 1
            printCoords()
        end
    end
end



print("+-------------------------------------+")
print("| Mega Quarry                         |")
print("+-------------------------------------+")
print("| Slot 16: Fuel                       |")
print("| Slot 1: Chests                      |")
print("+-------------------------------------+")
print("| Place turtle at bottom left of      |")
print("| quarry. Insert fuel. Specify        |")
print("| dimensions. Press enter to start.   |")
print("+-------------------------------------+")
read()
print("+-------------------------------------+")
print("| Quarry length = ?                   |")
print("+-------------------------------------+")
l = tonumber(read())
print("+-------------------------------------+")
print("| Quarry width = ?                   |")
print("+-------------------------------------+")
w = tonumber(read())
print("+-------------------------------------+")
print("| Quarry height = ?                   |")
print("+-------------------------------------+")
h = tonumber(read())

refuel()



mine()