I want to check if something exists within the local player, if it doesn't, I want something to happen. How do I do this?
The FindFirstChild method will return true if it finds the specified object. In your LocalScript, put something like this:
if game.Players.LocalPlayer:FindFirstChild("NameOfObjectHere") then --do stuff end
Hope this helps!
Also note that LocalPlayer only exists to the client, and referencing it needs to be done through a LocalScript (as I'm sure you are aware).
if game.Players.LocalPlayer:FindFirstChild("NameHere") then --Script else print("Error can't find object in localplayer") end
This needs to be a local script