I'm replacing roblox's inventory system with my custom made one and eveything is working out great except the problem is if you have a tool and you unequip the same key coordinated to that tool, you can't unequip that tool.

My system is where I have a full table list of what the player has in their backpack, and whenever the player presses a certain key, it converts that to a number that can index whatever tool inside of the player's backpack.

Here's the full script that makes up the inventory system:



-- // Services \\ -- 
local UserInputService = game:GetService("UserInputService")
local PlayersService = game:GetService("Players")

-- // Variables \\ --
local Player = PlayersService.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()
local Humanoid  = Character:WaitForChild("Humanoid")
local Backpack = Player.Backpack -- Actual backpack containing what the gear the player has

local BackpackChildren = Backpack:GetChildren()
local Copy = BackpackChildren

-- // Tables & Statements \\ --

local KeyToNumber = {
	["One"] = 1,
	["Two"] = 2,
	["Three"] = 3,
	["Four"] = 4,
	["Five"] = 5,
	["Six"] = 6,
	["Seven"] = 7,
	["Eight"] = 8,
	["Nine"] = 9,
	["Zero"] = 0
}

-- // Functions \\ -- 

local function GetToolIndex(Tool, BackpackItems)
	for i,v in pairs(BackpackItems) do
		if v == Tool then
			return i
		end
	end
end

local function EquipTool(Index)
	if not Humanoid:FindFirstChildOfClass("Tool") then 	-- if theres no tool equipped
		local Tool = BackpackChildren[Index]
		if Tool then
			Humanoid:EquipTool(Tool)
			return true
		end
	end
	return false 	-- if theres a tool equipped
end

local function UnequipTool(Index) -- we know there's a tool equipped	
	Humanoid:UnequipTools()
--	Humanoid:EquipTool(BackpackChildren[Index])
end

local function InputStarted(Input, GameProcessedEvent)
	local Conversion = KeyToNumber[Input.KeyCode.Name]
	if Conversion then
		if not EquipTool(Conversion) then
			UnequipTool() -- if there is a tool equipped, we would want to unequip it
		end
	end
end


-- // Events \\ --
UserInputService.InputBegan:Connect(InputStarted)

If you would like a hands-on experience to what I'm saying, here's the link tot the place that showcases the system:

https://web.roblox.com/games/4718814317/Testing-Place-Teams

Use the system like how you would normally use for roblox's inventory system.

Anonymous