CC Turtle Devel: initInventory

local numFilters = 0            -- Number of filter slots
local invNumBlocksByType = {}           -- Number of blocks in our inventory, grouped by block type
local invNumBlocksByTypeInStack = {}    -- Number of blocks in our inventory in the currently filling slot, grouped by block type
local invNumBlocksTotal = 0     -- Total number of blocks in our inventory
local invNumEmptySlots = 0      -- Number of empty slots in our inventory
local itemDrops = {}            -- Does the block drop itself or something else, or multiple types ["unknown"|"self"|"other"|"multiple"]
local dropCount = {}            -- Number of items dropped per block


-- Initialize the inventory related tables
function initInventory()
    local num = 0
    local firstEmpty = 0
    local currentFilter = 0
    invNumBlocksTotal = 0

    -- FIXME TODO: check for auto-refuel enabled
    local lastSlot = 16
    -- Note: We don't touch the last slot if we are using the auto-refuel feature
    for i = 1, lastSlot do
        num = turtle.getItemCount(i)

        -- Items in the current slot
        if num > 0 then
            -- Sort the filter items starting from slot 1 so that there are no empty slots in between.
            -- There have been empty slots before, but the current slot is not empty
            if firstEmpty > 0 then
                turtle.select(i)
                turtle.transferTo(firstEmpty, num)
                local j = firstEmpty + 1
                firstEmpty = 0
                for j = j, i do
                    if turtle.getItemCount(j) == 0 then
                        firstEmpty = j
                        break
                    end
                end
            end
            -- Initialize and calculate the inventory/filtering related things
            currentFilter = currentFilter + 1
            invNumBlocksByType[currentFilter] = num
            invNumBlocksByTypeInStack[currentFilter] = num
            invNumBlocksTotal = invNumBlocksTotal + num
            itemDrops[currentFilter] = "unknown"
            dropCount[currentFilter] = -1
        elseif firstEmpty == 0 then
            firstEmpty = i
        end
    end

    numFilters = currentFilter
    invNumEmptySlots = 16 - numFilters

    return true
end

initInventory()

print("numFilters: " .. numFilters)
print("invNumBlocksTotal: " .. invNumBlocksTotal)
print("invNumEmptySlots: " .. invNumEmptySlots)

print("invNumBlocksByType: ")
for key, value in pairs (invNumBlocksByType) do
    print("invNumBlocksByType[" .. tostring(key) .. "]: " .. tostring(value))
end

print("invNumBlocksByTypeInStack: ")
for key, value in pairs (invNumBlocksByTypeInStack) do
    print("invNumBlocksByTypeInStack[" .. tostring(key) .. "]: " .. tostring(value))
end

print("itemDrops: ")
for key, value in pairs (itemDrops) do
    print("itemDrops[" .. tostring(key) .. "]: " .. tostring(value))
end

print("dropCount: ")
for key, value in pairs (dropCount) do
    print("dropCount[" .. tostring(key) .. "]: " .. tostring(value))
end