dig_test

local SLOT_COUNT = 16
local d = "north"
local width, depth, height = 10, 10, 2

if (#arg == 3) then
    width = tonumber(arg[1])
    depth = tonumber(arg[2])
    height = tonumber(arg[3])
else
    print('None or Malformed Size Given, Defaulting to 10x10x2 up')
end


DROPPED_ITEMS = {
    "minecraft:stone",
    "minecraft:dirt",
    "minecraft:cobblestone",
    "extrautils2:ingredients",
    "thaumcraft:nugget",
    "thaumcraft:crystal_essence",
    "thaumcraft:ore_cinnabar",
    "forestry:apatite"
}
function dropItems()
    print("Purging Inventory...")
    for slot = 1, SLOT_COUNT, 1 do
        local item = turtle.getItemDetail(slot)
        if(item ~= nil) then
            for filterIndex = 1, #DROPPED_ITEMS, 1 do
                if(item["name"] == DROPPED_ITEMS[filterIndex]) then
                    print("Dropping - " .. item["name"])
                    turtle.select(slot)
                    turtle.dropDown()
                end
            end
        end
    end
end


function getEnderIndex()
    for slot = 1, SLOT_COUNT, 1 do
        local item = turtle.getItemDetail(slot)
        if(item ~= nil) then
            if(item["name"] == "enderstorage:ender_storage") then
                return slot
            end
        end
    end
    return nil
end

function manageInventory()
    dropItems()
    index = getEnderIndex()
    if(index ~= nil) then
        turtle.select(index)
        turtle.digUp()
        turtle.placeUp()
    end
    -- Chest is now deployed
    for slot = 2, SLOT_COUNT, 1 do
        local item = turtle.getItemDetail(slot)
        if(item ~= nil) then
            --if(item["name"] ~= "minecraft:coal_block" and item["name"] ~= "minecraft:coal") then
            turtle.select(slot)
            turtle.dropUp()
            --end
        end
    end
    -- Items are now stored

    turtle.digUp()
end

function checkFuel()
    turtle.select(1)

    if(turtle.getFuelLevel() < 50) then
        print("Attempting Refuel...")
        for slot = 1, SLOT_COUNT, 1 do
            turtle.select(slot)
            if(turtle.refuel(1)) then
                return true
            end
        end

        return false
    else
        return true
    end
end


function detectAndDig()
    while(turtle.detect() or turtle.detectUp() or turtle.detectDown() ) do
        turtle.dig()
        turtle.digUp()
        turtle.digDown()
    end
end

function forward()
    detectAndDig()
    turtle.forward()
end

function leftTurn()
    turtle.turnLeft()
    detectAndDig()
    turtle.forward()
    turtle.turnLeft()
    detectAndDig()
end


function rightTurn()
    turtle.turnRight()
    detectAndDig()
    turtle.forward()
    turtle.turnRight()
    detectAndDig()
end

function flipDirection()
    if(d == "north") then
        d = "south"
    elseif(d == "south") then
        d = "north"
    elseif(d == "west") then
        d = "east"
    elseif(d == "east") then
        d = "west"
    end

end

function turnAround(tier)
    if(tier % 2 == 1) then
        if(d == "north" or d == "east") then
            rightTurn()
        elseif(d == "south" or d == "west") then
            leftTurn()
        end
    else
        if(d == "north" or d == "east") then
            leftTurn()
        elseif(d == "south" or d == "west") then
            rightTurn()
        end
    end
    flipDirection()
end


function riseTier()
    turtle.turnRight()
    turtle.turnRight()
    flipDirection()
    turtle.digUp()
    turtle.up()
    turtle.digUp()
    turtle.up()
    turtle.digUp()
    turtle.up()
end


function start()
    for tier = 1, height, 1 do
        for col = 1, width, 1 do
            for row = 1, depth - 1, 1 do
                if(not checkFuel()) then
                    print("Turtle is out of fuel, Powering Down...")
                    return
                end
                forward()
                print(string.format("Row: %d   Col: %d", row, col))
            end
            if(col ~= width) then
                turnAround(tier)
            end
            manageInventory()
        end
        riseTier()
    end
end

start()