Stamina Bar

local UIS = game:GetService('UserInputService')
local Frame1 = script.Parent:WaitForChild('Frame1'):WaitForChild('Frame2')
local player = game.Players.LocalPlayer
local NormalWalkSpeed = 16
local NewWalkSpeed = 100
local ii = 10
local running = false
repeat wait() until game.Players.LocalPlayer.Character
local character = player.Character

UIS.InputBegan:connect(function(key, gameProcessed)
	if key.KeyCode == Enum.KeyCode.Q and gameProcessed == false then
		character.Humanoid.WalkSpeed = NewWalkSpeed
		running = true
		while ii > 0 and running do
			ii = ii - 0.5
			Frame1:TweenSize(UDim2.new(ii / 10, 0, 1, 0), 'Out', 'Quint', .1, true)
			wait()
			if ii <= 0 then
				character.Humanoid.WalkSpeed = NormalWalkSpeed
			end
		end
	end
end)

UIS.InputEnded:connect(function(key, gameProcessed)
	if key.KeyCode == Enum.KeyCode.Q and gameProcessed == false then
		character.Humanoid.WalkSpeed = NormalWalkSpeed
		running = false
		while ii < 10 and not running do
			ii = ii + 0.1
			Frame1:TweenSize(UDim2.new(ii / 10, 0, 1, 0), 'Out', 'Quint', .1, true)
			wait()
			if ii <= 0 then
				character.Humanoid.WalkSpeed = NormalWalkSpeed
			end
		end
	end
end)