mine_2.0

radius = 5
elevation = 61 --current Y
skipTo = 46    --skip to Y
digTo = 5      --dig to Y
trashSlots = 2 --Number of trash slots

depth = elevation - digTo
skip = elevation - skipTo
diameter = (radius + radius)

turtle.select(1)

--Refuel if needed
neededFuelSetup = radius + radius
print("Fuel needed to get in position: "..neededFuelSetup)
neededFuelLayer = (diameter+1) * (diameter+1)
print("Fuel needed to mine a layer: "..neededFuelLayer)

neededFuel = neededFuelSetup + (neededFuelLayer*depth)

print("Needed Fuel: "..neededFuel)
print("Current Fuel Level: "..turtle.getFuelLevel())

if neededFuel > turtle.getFuelLevel()
then
    print("Refueling...")
    for i = 1,16
    do
        turtle.select(i)
        turtle.refuel()
    end
    turtle.select(1)
    if neededFuel > turtle.getFuelLevel()
    then
        print("Not Enough Fuel")
        error()
    end
end

--Get into position
for i = 1,skip
do
    turtle.digDown()
    turtle.down()
end

if (number % 2 == 0)
then
else
    turtle.turnLeft()
    turtle.turnLeft()
end

for i = 1,radius
do
    turtle.dig()
    turtle.forward()
end

turtle.turnRight()

for i = 1,radius
do
    turtle.dig()
    turtle.forward()
end

turtle.turnLeft()
turtle.turnLeft()

print("In Position")

--Mine
for i = 1,depth
do
currentDepth = i-1
if i < skip
then
    break
end

layer = i
    print("Mining Layer "..layer.."/"..depth)
--Mine a layer
    for i = 1,diameter + 1
    do
    currentRow = i
        for i = 1,diameter
        do
            turtle.digDown()
            turtle.dig()
            turtle.forward()
        end
        if i == (diameter + 1)
        then
        else
            if (currentRow % 2 == 0)
            then
                turtle.turnRight()
                turtle.digDown()
                turtle.dig()
                turtle.forward()
                turtle.turnRight()
            else
                turtle.turnLeft()
                turtle.digDown()
                turtle.dig()
                turtle.forward()
                turtle.turnLeft()
            end
            if trashSlots > 0
            then
                for i = 1,trashSlots
                do
                    turtle.select(i)
                    turtle.drop(turtle.getItemCount()-1)
                end
                turtle.select(1)
            end
        end
    end
    turtle.turnLeft()
    turtle.turnLeft()

    --Check if the inventory is almost full
    inventoryFull = false
    for i = trashSlots,16
    do
        turtle.select(i)
        items = turtle.getItemCount()
        space = turtle.getItemSpace()
        if items > space*2
        then
            inventoryFull = true
        end
    end

    if turtle.getItemCount() > 0
    then
        inventoryFull = true
    end

    turtle.select(1)

    if inventoryFull == true
    then
        for i = 1,radius
        do
            turtle.dig()
            turtle.forward()
        end

        turtle.turnLeft()

        for i = 1,radius
        do
            turtle.dig()
            turtle.forward()
        end

        for i = 1,currentDepth
        do
            turtle.digUp()
            turtle.up()
        end

        for i = trashSlots+1,16
        do
            turtle.select(i)
            turtle.dropUp()
        end

        turtle.select(1)

        turtle.turnLeft()
        turtle.turnLeft()

        for i = 1,currentDepth
        do
            turtle.digDown()
            turtle.down()
        end

        for i = 1,radius
        do
            turtle.dig()
            turtle.forward()
        end

        turtle.turnRight()

        for i = 1,radius
        do
            turtle.dig()
            turtle.forward()
        end

        turtle.turnLeft()
        turtle.turnLeft()
    end

    turtle.digDown()
    turtle.down()
end

--return
for i = 1,radius
do
    turtle.forward()
end

turtle.turnLeft()

for i = 1,radius
do
    turtle.dig()
    turtle.forward()
end

for i = 1,depth
do
    turtle.digUp()
    turtle.up()
end

for i = trashSlots+1,16
do
    turtle.select(i)
    turtle.dropUp()
end
turtle.select(1)