Is it possible to prevent a duplicate tool in a player's backpack?

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,
#1

I am currently working on a ProximityPrompt gear giver, and I have trouble preventing having multiple of the same gear in one’s inventory.

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#2 
-- reference to tool that you want to give to the player
local toolToGive = tool

-- try to find a tool with the same name as the tool that you want to give
local playerBackpackTool = player.Backpack:FindFirstChild(toolToGive.Name) or player.Character:FindFirstChild(toolToGive.Name)

-- if tool with same name doesn't exist then
if not playerBackpackTool then
    -- give tool to player
    toolToGive:Clone().Parent = player.Backpack
end
3 Likes
#3

You could also use if you wanted to give multiple tools:

To everyone:

local Tools = {
 game.ServerStorage.TestTool
}

function RunThroughTools(player)
 local BP = player.Backpack
 for i,tool in pairs(Tools) do
  if tool:IsA("Tool") and not BP[tool.Name] then
    tool:Clone().Parent = BP
  end
 end
end

game.Players.PlayerAdded:Connect(function(player)
 RunThroughTools(player)
 player.CharacterAdded:Connect(function()
    RunThroughTools(player)
  end)
end)

Or if you wanted to only give certain people tools you could do something like this:

local PlayerList = {
 [3000392] = {
   ExampleTool = {
      Tool = game.ServerStorage.TestTool,
      Give = true
   }
 }
}


function GiveTools(Tbl,plr)
 local BP = plr.Backpack
 
 for i,tool in pairs(Tbl) do 
  if tool:IsA("Tool") and not BP[tool.Name] then
   tool:Clone().Parent = BP
  end
 end
end

function Check(player)
 local Tools = {}
 local Data = PlayerList[player.Name] or PlayerList[player.UserId] 
 
 if not Data then
   return
 end
 
 for i,PT in pairs(Data) do 
  local Location,Give = Data.ToolLocation,Data.Give 
  if Location and Give then
    table.insert(Tools,1,Tool)
   end
 end
 GiveTools(Tools,player)
end


game.Players.PlayerAdded:Connect(function(player)
 Check(player)
 player.CharacterAdded:Connect(function()
    Check(player)
  end)
end)
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