How to fix Stamina issue?

[F0xBirdmansBFF]

basically, i have a stamina script and if the players FPS is High, then stamina will go down fast, but if the players FPS is Low, then stamina will go down slower. I know its because im using RenderStepped to add/remove stamina, but how could i make it so stamina is the same with all FPS?

LOCAL SCRIPT:

local players = game:GetService("Players")
local Player = players.LocalPlayer
local runService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")
local character = players.LocalPlayer.Character or Player.CharacterAdded:Wait()
local hum = character:WaitForChild("Humanoid")
local userInputService = game:GetService("UserInputService")
local Camera = workspace.CurrentCamera
local FOV = Camera.FieldOfView
local debounce = false
local maxStamina = script:WaitForChild("maxStamina").Value
local staminaRegen = .1
local staminaCost = .2
local staminaCost2 = .15
local sprintSpeed = character:WaitForChild("SprintSpeedValue").Value
local jogSpeed = character:WaitForChild("JogSpeedValue").Value
local walkSpeed = character:WaitForChild("WalkSpeedValue").Value
local Toggle = false
local Climbing = Enum.HumanoidStateType.Climbing
local Moving = false
local Sprinting = false
local Jogging = false
local currentStaminaValue = script:WaitForChild("currentStamina").Value
local currentStamina = maxStamina

task.wait()
local FullSprintAnim = hum.Animator:LoadAnimation(script.Animation) or script:WaitForChild("Animation")
local WalkAnim = hum.Animator:LoadAnimation(script.Walk) or script:WaitForChild("Walk")
local IdleAnim = hum.Animator:LoadAnimation(script.Idle) or script:WaitForChild("Idle")
local LightJogAnim = hum.Animator:LoadAnimation(script.LightJog) or script:WaitForChild("LightJog")

local anim = character:WaitForChild("Animate")
hum.WalkSpeed = walkSpeed










local StaminaBackground = players.LocalPlayer.PlayerGui.Stamina.Background
local StaminaBar = players.LocalPlayer.PlayerGui.Stamina.Bar
local Icon = StaminaBackground:WaitForChild("Icon")



StaminaBar.Transparency = StaminaBar.Transparency
--TWEENS
local tweenInfo = TweenInfo.new(
	1, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.In, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)

local tween = TweenService:Create(StaminaBar, tweenInfo, {Transparency = 1})

StaminaBackground.Transparency = StaminaBackground.Transparency

local tweenInfo = TweenInfo.new(
	1, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.In, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)

local tween2 = TweenService:Create(StaminaBackground, tweenInfo, {Transparency = 1})

local tweenInfoText = TweenInfo.new(
	1, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.In, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)

local tweenInfoIcon = TweenInfo.new(
	1, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.In, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)

local tweenIcon = TweenService:Create(Icon, tweenInfo, {ImageTransparency = 1})

local tweenInfoIcon2 = TweenInfo.new(
	1, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.In, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)

local tweenIcon2 = TweenService:Create(Icon, tweenInfo, {ImageTransparency = 0})

local tweenInfoSprint = TweenInfo.new(
	.5, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.InOut, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)

local SprintFOVTween = TweenService:Create(Camera, tweenInfoSprint, {FieldOfView = 85})

local tweenInfoSprintStop = TweenInfo.new(
	.25, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.InOut, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)
local SprintStoppedFOVTween = TweenService:Create(Camera, tweenInfoSprintStop, {FieldOfView = 70})


local tweenInfoJog = TweenInfo.new(
	.75, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.InOut, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)

local JogFOVTween = TweenService:Create(Camera, tweenInfoSprint, {FieldOfView = 79})

local tweenInfoJogStop = TweenInfo.new(
	.5, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.InOut, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)
local JogStoppedFOVTween = TweenService:Create(Camera, tweenInfoSprintStop, {FieldOfView = 70})

local SprintTweenInfo = TweenInfo.new(
	1, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.InOut, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)
local SprintTween = TweenService:Create(hum, SprintTweenInfo, {WalkSpeed = 22})

local SprintTweenInfo = TweenInfo.new(
	1, -- Time
	Enum.EasingStyle.Quad, -- EasingStyle
	Enum.EasingDirection.InOut, -- EasingDirection
	0, -- RepeatCount (when less than zero the tween will loop indefinitely)
	false, -- Reverses (tween will reverse once reaching it's goal)
	0 -- DelayTime
)
local SprintStopTween = TweenService:Create(hum, SprintTweenInfo, {WalkSpeed = walkSpeed})
--



--Moving
hum.Running:Connect(function(speed)
	if speed > 2 then
		Moving = true
		IdleAnim:Stop()
		WalkAnim:Play()
	else
		IdleAnim:Play()
		WalkAnim:Stop()
		Moving = false
	end
end)
--



-- Update Stamina GUI
function updateGui(current, max)

	--print("Current:",current,"Max:",max,"c/m:",current/max,"Background Size:", StaminaBackground.AbsoluteSize.X)
--]]
	if currentStamina >= maxStamina then
		tween:Play()
		tween2:Play()
		tweenIcon:Play()
	else
		StaminaBar.Transparency = 0
		StaminaBackground.Transparency = 0.6
		
		tweenIcon2:Play()
		tween:Cancel()
		tween2:Cancel()

	end


	players.LocalPlayer.PlayerGui.Stamina.Bar.Size = UDim2.new(0,current/max*StaminaBackground.AbsoluteSize.X, 0, 35)
end
--hum.Running:Connect(function(speed)
	userInputService.InputBegan:Connect(function(input)
		--if speed > 0 then return end
	if input.KeyCode == Enum.KeyCode.LeftShift and debounce == false  and Moving and Jogging == false then
		
		if currentStamina >= staminaCost then
			Sprinting = true
				FullSprintAnim:Play()
				hum.WalkSpeed = sprintSpeed
				SprintFOVTween:Play()
			if hum.WalkSpeed ~= sprintSpeed then
					Sprinting = false
					FullSprintAnim:Stop()
				end
				debounce = true
				task.wait(.7)
				debounce = false
			end
--
		elseif input.KeyCode == Enum.KeyCode.X and debounce == false and Moving and Sprinting == false then
		if currentStamina >= staminaCost2 then
			Jogging = true
				LightJogAnim:Play()
				hum.WalkSpeed = jogSpeed
				JogFOVTween:Play()
			if hum.WalkSpeed ~= jogSpeed then
				Jogging = false
					LightJogAnim:Stop()
				end
				debounce = true
				task.wait(.5)
				debounce = false
			end
			--]]
		end
	end)

-- Sprint Key Released

	userInputService.InputEnded:Connect(function(input)
	if input.KeyCode == Enum.KeyCode.LeftShift then
		Sprinting = false
		SprintStoppedFOVTween:Play()

			FullSprintAnim:Stop()
			hum.WalkSpeed = walkSpeed
			--
	elseif input.KeyCode == Enum.KeyCode.X then
		Jogging = false
			JogStoppedFOVTween:Play()
			LightJogAnim:Stop()
			hum.WalkSpeed = walkSpeed
			--]]
		end
	end)
--end)

--
runService.RenderStepped:Connect(function(FPS)

	if Sprinting then
		LightJogAnim:Stop()
		if currentStamina >= staminaCost and Moving then
			currentStamina -= staminaCost
		else
			hum.WalkSpeed = walkSpeed
			FullSprintAnim:Stop()
			SprintStoppedFOVTween:Play()
		end 
	elseif Jogging then
		if currentStamina >= staminaCost2 and Moving then
			currentStamina -= staminaCost

			FullSprintAnim:Stop()
		else
			hum.WalkSpeed = walkSpeed

			JogStoppedFOVTween:Play()
			LightJogAnim:Stop()
		end
	else
		if currentStamina < maxStamina then 
			task.wait(1)
			currentStamina += staminaCost
		elseif currentStamina > maxStamina then
			currentStamina = maxStamina
		end
	end
	updateGui(currentStamina, maxStamina)
end)
-------HEALTH

local OGSaturation = game.Lighting.ColorCorrection.Saturation
local HeartBeat = workspace["Slow Heartbeat"]
hum.HealthChanged:Connect(function(health)
	
	game.Lighting.ColorCorrection.Saturation = health / 100 - 1

	
end)

hum.Died:Connect(function()
	game.Lighting.ColorCorrection.Saturation = 0
end)
--]]

[RealingZeeKung (colour)]

Using DeltaTime

I haven’t seen anything about this, so I will make this my first tutorial. What is DeltaTime? DeltaTime is the time between events. This is extremely useful, often used to make sure frame rate makes no difference on what happens. The focus of this thread will be on DeltaTime with RunService events, wait, spawn, and delay. Why use DeltaTime? Since DeltaTime is the time in between events, this can be used with RunService events/wait when timing is important. RunService events are tied directly …

[F0xBirdmansBFF]

I get that delta time would probably fix it, but i just do not know how i should implement it into my script if that makes sense

[Epixerty (Epix)]

use a local script and a remote event, if you do it on the client it won’t be faster or slower

[F0xBirdmansBFF]

thats one way, but i want to keep it client sided

[Epixerty (Epix)]

oh so it’s already a local script?

[Epixerty (Epix)]

well then your only choice is to change the system and not use runservice

[F0xBirdmansBFF]

@Epixerty

only choice

not true cause there is a solution using delta time and others but i dont know how to implement it

[RealingZeeKung (colour)]

This is RunService part v

RunService.RenderStepped:Connect(function(FPS)
    -- FPS is DeltaTime
	if Sprinting then
		LightJogAnim:Stop()
		if currentStamina >= staminaCost and Moving then
			currentStamina -= (staminaCost * FPS)
		else
			hum.WalkSpeed = walkSpeed
			FullSprintAnim:Stop()
			SprintStoppedFOVTween:Play()
		end 
	elseif Jogging then
		if currentStamina >= staminaCost2 and Moving then
			currentStamina -= (staminaCost * FPS)

			FullSprintAnim:Stop()
		else
			hum.WalkSpeed = walkSpeed

			JogStoppedFOVTween:Play()
			LightJogAnim:Stop()
		end
	else
		if currentStamina < maxStamina then 
			task.wait(1)
			currentStamina += (staminaCost * FPS)
		elseif currentStamina > maxStamina then
			currentStamina = maxStamina
		end
	end
	updateGui(currentStamina, maxStamina)
end)

It will reduce stamina by staminaCost Per Second (No matter how lag you are)