turtle tunnel

local dangerBlocks = {"minecraft:lava", "minecraft:flowing_lava", "minecraft:water", "minecraft:flowing_water"}

local function isDangerous()
    local success, data = turtle.inspect()
    if success then
        for _, block in ipairs(dangerBlocks) do
            if data.name == block then
                return true
            end
        end
    end
    return false
end

local function dig()
    while turtle.detect() do
        if isDangerous() then
            print("Обнаружен опасный блок! Остановка копания.")
            return false
        end
        turtle.dig()
    end
    return true
end

local function digUp()
    while turtle.detectUp() do
        turtle.digUp()
    end
end

local function digDown()
    while turtle.detectDown() do
        turtle.digDown()
    end
end

local function isInventoryFull()
    for i = 1, 16 do
        if turtle.getItemCount(i) == 0 then
            return false
        end
    end
    return true
end

local function returnToChest(steps)
    for i = 1, steps do
        turtle.back()
    end
    turtle.turnLeft()
    turtle.turnLeft()
    for i = 1, 16 do
        turtle.select(i)
        turtle.drop()
    end
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.select(1)
    for i = 1, steps do
        turtle.forward()
    end
end

local function tunnel(length)
    for i = 1, length do
        if not dig() then return end
        turtle.forward()
        digUp()
        digDown()

        if isInventoryFull() then
            print("Инвентарь полон, возвращение к сундуку.")
            returnToChest(i)
        end
    end
end

print("Введите длину туннеля:")
local length = tonumber(read())
if length then
    tunnel(length)
else
    print("Ошибка ввода длины.")
end