I don't understand why this doesn't work? I am kind of new to scripting

So I'm trying to make a script personally for me just for scripting practice. Then I realized this would make as a really good game. There aren't any errors in the output at all, and I have checked the wiki about 20 times. So please help.

local player = game.Players.LocalPlayer.Character
local UserInputService = game:GetService("UserInputService")


while wait(0.2) do
    function onInputBegan(inputObject, gameProcessedEvent)
     if inputObject.KeyCode == Enum.KeyCode.F then
         local ball = Instance.new("Part", workspace)
            ball.Parent = player.Torso
            ball.BrickColor = BrickColor.new("Teal")
            ball.Material = "Plastic"
            ball.Transparency = .6

            local Weld = Instance.new("Weld", ball)
            Weld.Part0 = ball
            Weld.Part1 = player.Torso
            ball.CFrame = player.Head.CFrame
            Weld.C0 = ball.CFrame:inverse()
            Weld.C1 = player.Torso.CFrame:inverse()
            ball.Anchored = false
            wait(1)
            ball:Destroy()
            Weld:Destroy()
end
end
end

UserInputService.InputBegan:connect(onInputBegan)