Rod.lua

local Rod = {
    index = 1,
    level = 0,
    name = "",
    valid = false,
}
setmetatable(Rod, Rod)

function Rod:new(rod)
    rod = rod or {}
    setmetatable(rod, Rod)
    Rod.__index = Rod

    return {
        index = function()
            return rod.index
        end,
        level = function()
            return rod.level
        end,
        name = function()
            return rod.name
        end,
        setLevel = function(new_level)
            rod.level = new_level
        end,
        setName = function(new_name)
            rod.name = new_name
        end,
        valid = function()
            return rod.valid
        end,
    }
end

return Rod