Vertical health bar

local Players = game:GetService("Players")
local TweenService = game:GetService("TweenService")
local CoreGui = game:GetService("CoreGui")
local RunService = game:GetService("RunService")
 
local function formatHealth(val)
    local rounded = math.round(val * 10) / 10 -- Rounds to 1 decimal place first
    if rounded % 1 == 0 then
        return string.format("%.0f", rounded) -- Absolutely no decimal for whole numbers
    else
        return string.format("%.1f", rounded) -- Exactly one decimal for others
    end
end
 
local function createHealthBar(character)
    local humanoid = character:WaitForChild("Humanoid", 5)
    local head = character:WaitForChild("Head", 5)
    if not humanoid or not head then return end
 
    if CoreGui:FindFirstChild(character.Name .. "_HealthBar") then
        CoreGui[character.Name .. "_HealthBar"]:Destroy()
    end
 
    local billboard = Instance.new("BillboardGui")
    billboard.Name = character.Name .. "_HealthBar"
    billboard.Parent = CoreGui
    billboard.Adornee = head
    billboard.Size = UDim2.new(4, 0, 6, 0) 
    billboard.AlwaysOnTop = true
    billboard.ExtentsOffset = Vector3.new(2.8, 1, 0) -- Far right of head
 
    local mainFrame = Instance.new("Frame")
    mainFrame.Size = UDim2.new(0.06, 0, 0.6, 0) 
    mainFrame.BackgroundColor3 = Color3.fromRGB(0, 0, 0)
    mainFrame.BackgroundTransparency = 0.5
    mainFrame.BorderSizePixel = 0
    mainFrame.AnchorPoint = Vector2.new(0.5, 0.5)
    mainFrame.Position = UDim2.new(0.5, 0, 0.5, 0)
    mainFrame.Parent = billboard
 
local ghostBar = Instance.new("Frame")
    ghostBar.Size = UDim2.new(1, 0, 1, 0)
    ghostBar.AnchorPoint = Vector2.new(0, 1)
    ghostBar.Position = UDim2.new(0, 0, 1, 0)
    ghostBar.BackgroundColor3 = Color3.fromRGB(255, 255, 255)
    ghostBar.BackgroundTransparency = 0.3
    ghostBar.ZIndex = 2
    ghostBar.Parent = mainFrame
 
    local healthBar = Instance.new("Frame")
    healthBar.Size = UDim2.new(1, 0, 1, 0)
    healthBar.AnchorPoint = Vector2.new(0, 1)
    healthBar.Position = UDim2.new(0, 0, 1, 0)
    healthBar.BackgroundColor3 = Color3.fromRGB(0, 255, 120)
    healthBar.ZIndex = 3
    healthBar.Parent = mainFrame
 
    local healthText = Instance.new("TextLabel")
    healthText.Size = UDim2.new(8, 0, 0.25, 0) 
    healthText.Position = UDim2.new(0.5, 0, 0, -8)
    healthText.AnchorPoint = Vector2.new(0.5, 1)
    healthText.BackgroundTransparency = 1
    healthText.TextColor3 = Color3.fromRGB(255, 255, 255)
    healthText.Font = Enum.Font.GothamBold
    healthText.TextScaled = true
    healthText.Parent = mainFrame
 
    local stroke = Instance.new("UIStroke")
    stroke.Thickness = 1.8
    stroke.Parent = healthText
 
    local lastDamageTime = 0
    local ghostTween = nil
 
    local function updateUI()
        local currentHP = humanoid.Health
        local hpPercent = math.clamp(currentHP / humanoid.MaxHealth, 0, 1)
        
        healthText.Text = formatHealth(currentHP)
        
        lastDamageTime = os.clock()
        if ghostTween then ghostTween:Cancel() end
 
        TweenService:Create(healthBar, TweenInfo.new(0.1), {
            Size = UDim2.new(1, 0, hpPercent, 0)
        }):Play()
    end
 
    local connection
    connection = RunService.Heartbeat:Connect(function()
        if not billboard or not billboard.Parent then 
            connection:Disconnect() 
            return 
        end
        local now = os.clock()
        local targetPercent = math.clamp(humanoid.Health / humanoid.MaxHealth, 0, 1)
        if (now - lastDamageTime) >= 0.8 and ghostBar.Size.Y.Scale ~= targetPercent then
            ghostTween = TweenService:Create(ghostBar, TweenInfo.new(2, Enum.EasingStyle.Quart, Enum.EasingDirection.Out), {
                Size = UDim2.new(1, 0, targetPercent, 0)
            })
            ghostTween:Play()
        end
    end)
 
    humanoid.HealthChanged:Connect(updateUI)
    updateUI()
 
    character.AncestryChanged:Connect(function()
        if not character:IsDescendantOf(workspace) then
            connection:Disconnect()
            billboard:Destroy()
        end
    end)
end
 
local function setupPlayer(player)
    player.CharacterAdded:Connect(createHealthBar)
    if player.Character then task.spawn(createHealthBar, player.Character) end
end
 
Players.PlayerAdded:Connect(setupPlayer)
for _, p in ipairs(Players:GetPlayers()) do setupPlayer(p) end