Roblox Script Generated by ScripterAI

"Write me a inventory system that can handle adding, removing, stacking, fetch, and create an inventory for a player when they join. Include creating an inventory for a specific object aswell."

-- Inventory module (ReplicatedStorage) 
local Inventory = {}
Inventory.__index = Inventory

function Inventory.new()
    local self = setmetatable({}, Inventory)
    self.items = {}
    return self
end

function Inventory:add(itemName, amount)
    if self.items[itemName] then
        self.items[itemName] = self.items[itemName] + amount
    else
        self.items[itemName] = amount
    end
end

function Inventory:remove(itemName, amount)
    if self.items[itemName] and self.items[itemName] >= amount then
        self.items[itemName] = self.items[itemName] - amount
        if self.items[itemName] <= 0 then
            self.items[itemName] = nil
        end
    end
end

function Inventory:fetch(itemName)
    return self.items[itemName] or 0
end

function Inventory:getItems()
    return self.items
end

return Inventory

-- server script (ServerScriptService) 
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Inventory = require(ReplicatedStorage.Inventory)

local function onPlayerAdded(player)
    local playerInventory = Inventory.new()
    player:SetAttribute("Inventory", playerInventory)
end

Players.PlayerAdded:Connect(onPlayerAdded)

-- server script for a specific object (ServerScriptService) 
local object = game.Workspace.Object
local objectInventory = Inventory.new()

object:SetAttribute("Inventory", objectInventory)