UU mater combination

local function decimalToBinary(number)
    local binary = {}
    while number > 0 do
        table.insert(binary, 1, number % 2)
        number = math.floor(number / 2)
    end
    return binary
end

local function generateCombination(index)
    local binary = decimalToBinary(index)
    local combination = {}
    for i = 1, 9 do
        local bit = binary[i] or 0
        combination[i] = bit == 1 and "minecraft:uu_matter" or "minecraft:air"
    end
    return combination
end

local function clearCraftingGrid(usedSlots)
    for _, slotPair in ipairs(usedSlots) do
        turtle.select(slotPair.to)
        turtle.transferTo(slotPair.from, 1)
    end
end

local function testCombination(combination)
    local uuMatterSlot = 1
    local craftSlots = {1, 2, 3, 5, 6, 7, 9, 10, 11}
    local usedSlots = {}
    for i = 1, 9 do
        if combination[i] == "minecraft:uu_matter" then
            turtle.select(uuMatterSlot)
            turtle.suck(1)
            turtle.transferTo(craftSlots[i], 1)
            table.insert(usedSlots, {from = uuMatterSlot, to = craftSlots[i]})
            uuMatterSlot = uuMatterSlot + 1
            if uuMatterSlot > 27 then
                clearCraftingGrid(usedSlots)
                return false, nil -- not enough UU matter
            end
        else
            turtle.select(4) -- empty slot
        end
    end
    turtle.select(1)
    local success, result = turtle.craft()
    if success then
        for i = 1, 16 do
            local item = turtle.getItemDetail(i)
            if item and item.name ~= "minecraft:cobblestone" then
                turtle.select(i)
                turtle.drop()
            end
        end
    end
    clearCraftingGrid(usedSlots)
    return success, success and turtle.getItemDetail(1) or nil
end

local function logResult(file, combination, item)
    local recipe = "{ "
    for i = 1, 9 do
        recipe = recipe .. (i > 1 and ", " or "") .. "\"" .. combination[i] .. "\""
    end
    recipe = recipe .. " }"
    file.write("Recept: " .. recipe .. ", Item: " .. item.name .. ", Počet: " .. item.count .. "\n")
end

local totalCombinations = 2 ^ 9
local logFile = fs.open("recepty.txt", "w")

for i = 0, totalCombinations - 1 do
    local combination = generateCombination(i)
    local success, item = testCombination(combination)
    if success then
        logResult(logFile, combination, item)
    end
end

logFile.close()
print("Testování receptů dokončeno")