Stam

local playerSettings = {
    SprintSpeed = 22,
    WalkSpeed = 16,
    MaxStamina = 100,
    DrainRate = 20,
    RegenRate = 15,
    RegenDelay = 1,
    JumpCost = 25,
    SprintKey = Enum.KeyCode.LeftShift
}

local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")

local player = Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")

local currentStamina = playerSettings.MaxStamina
local isSprinting = false
local lastStaminaUse = tick()

------------------------------------------------------------
-- GUI Setup
------------------------------------------------------------
local screenGui = Instance.new("ScreenGui")
screenGui.Name = "StaminaGUI"
screenGui.Parent = player:WaitForChild("PlayerGui")

local frame = Instance.new("Frame", screenGui)
frame.Size = UDim2.new(0, 250, 0, 30)
frame.Position = UDim2.new(0.5, -125, 0.9, 0)
frame.BackgroundColor3 = Color3.fromRGB(50, 50, 50)
frame.BorderSizePixel = 0

local bar = Instance.new("Frame", frame)
bar.Size = UDim2.new(1, 0, 1, 0)
bar.BackgroundColor3 = Color3.fromRGB(0, 255, 0)
bar.BorderSizePixel = 0

local staminaText = Instance.new("TextLabel", frame)
staminaText.Size = UDim2.new(1, 0, 1, 0)
staminaText.BackgroundTransparency = 1
staminaText.TextScaled = true
staminaText.TextColor3 = Color3.new(1, 1, 1)
staminaText.Font = Enum.Font.SourceSansBold
staminaText.Text = currentStamina .. "/" .. playerSettings.MaxStamina

local function updateGUI()
    bar.Size = UDim2.new(currentStamina / playerSettings.MaxStamina, 0, 1, 0)
    staminaText.Text = math.floor(currentStamina) .. "/" .. playerSettings.MaxStamina

    -- Change bar color based on stamina level
    if currentStamina < playerSettings.MaxStamina * 0.3 then
        bar.BackgroundColor3 = Color3.fromRGB(255, 0, 0)
    elseif currentStamina < playerSettings.MaxStamina * 0.6 then
        bar.BackgroundColor3 = Color3.fromRGB(255, 255, 0)
    else
        bar.BackgroundColor3 = Color3.fromRGB(0, 255, 0)
    end
end

------------------------------------------------------------
-- Sprinting & Stamina Mechanics
------------------------------------------------------------
UserInputService.InputBegan:Connect(function(input, gameProcessed)
    if gameProcessed then return end
    if input.KeyCode == playerSettings.SprintKey then
        if currentStamina > 0 then
            isSprinting = true
            humanoid.WalkSpeed = playerSettings.SprintSpeed
        end
    end
end)

UserInputService.InputEnded:Connect(function(input, gameProcessed)
    if gameProcessed then return end
    if input.KeyCode == playerSettings.SprintKey then
        isSprinting = false
        humanoid.WalkSpeed = playerSettings.WalkSpeed
    end
end)

-- Deduct stamina when jumping; prevent jump if insufficient stamina
humanoid.Jumping:Connect(function(isActive)
    if isActive then
        if currentStamina >= playerSettings.JumpCost then
            currentStamina = currentStamina - playerSettings.JumpCost
            lastStaminaUse = tick()
        else
            humanoid.Jump = false
        end
    end
end)

RunService.Heartbeat:Connect(function(deltaTime)
    if isSprinting then
        if currentStamina > 0 then
            currentStamina = math.max(0, currentStamina - playerSettings.DrainRate * deltaTime)
            lastStaminaUse = tick()
            if currentStamina == 0 then
                isSprinting = false
                humanoid.WalkSpeed = playerSettings.WalkSpeed
            end
        else
            isSprinting = false
            humanoid.WalkSpeed = playerSettings.WalkSpeed
        end
    elseif currentStamina < playerSettings.MaxStamina and tick() - lastStaminaUse > playerSettings.RegenDelay then
        currentStamina = math.min(playerSettings.MaxStamina, currentStamina + playerSettings.RegenRate * deltaTime)
    end

    updateGUI()
end)

player.CharacterAdded:Connect(function(newCharacter)
    character = newCharacter
    humanoid = character:WaitForChild("Humanoid")
    currentStamina = playerSettings.MaxStamina
    isSprinting = false
    humanoid.WalkSpeed = playerSettings.WalkSpeed
end)

print("Stamina system loaded.")