-- OPEN SOURCED
local Version = "1.0.0"
local LatestVersion = game:HttpGet("https://github.com/Hwrhero13gmailcom/Zenith-HUB/blob/main/Gun%20Grounds")

if Version ~= LatestVersion then
    warn("New version available! Please update.")
end

-- Gun Grounds Ultimate (No External UI Library)
local Players = game:GetService("Players")
local LocalPlayer = Players.LocalPlayer
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")

-- Create main ScreenGui
local ScreenGui = Instance.new("ScreenGui")
ScreenGui.Name = "GunGroundsUI"
ScreenGui.Parent = game.CoreGui
ScreenGui.ResetOnSpawn = false

-- Create main frame
local MainFrame = Instance.new("Frame")
MainFrame.Name = "MainFrame"
MainFrame.Size = UDim2.new(0, 350, 0, 400)
MainFrame.Position = UDim2.new(0.5, -175, 0.5, -200)
MainFrame.AnchorPoint = Vector2.new(0.5, 0.5)
MainFrame.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
MainFrame.BorderSizePixel = 0
MainFrame.Parent = ScreenGui

-- Title bar
local Title = Instance.new("TextLabel")
Title.Name = "Title"
Title.Size = UDim2.new(1, 0, 0, 30)
Title.Position = UDim2.new(0, 0, 0, 0)
Title.BackgroundColor3 = Color3.fromRGB(20, 20, 20)
Title.BorderSizePixel = 0
Title.Text = "🔫 Gun Grounds Ultimate"
Title.TextColor3 = Color3.new(1, 1, 1)
Title.Font = Enum.Font.GothamBold
Title.TextSize = 14
Title.Parent = MainFrame

-- Close button
local CloseButton = Instance.new("TextButton")
CloseButton.Name = "CloseButton"
CloseButton.Size = UDim2.new(0, 30, 0, 30)
CloseButton.Position = UDim2.new(1, -30, 0, 0)
CloseButton.BackgroundColor3 = Color3.fromRGB(200, 50, 50)
CloseButton.BorderSizePixel = 0
CloseButton.Text = "X"
CloseButton.TextColor3 = Color3.new(1, 1, 1)
CloseButton.Font = Enum.Font.GothamBold
CloseButton.TextSize = 14
CloseButton.Parent = MainFrame

CloseButton.MouseButton1Click:Connect(function()
    ScreenGui:Destroy()
end)

-- Tab system
local Tabs = {"Player", "Combat", "Visuals"}
local TabButtons = {}
local TabFrames = {}

-- Create tabs
for i, tabName in ipairs(Tabs) do
    -- Tab button
    local TabButton = Instance.new("TextButton")
    TabButton.Name = tabName.."Tab"
    TabButton.Size = UDim2.new(0.33, -2, 0, 30)
    TabButton.Position = UDim2.new((i-1)*0.33, 0, 0, 30)
    TabButton.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
    TabButton.BorderSizePixel = 0
    TabButton.Text = (i == 1 and "👤 " or i == 2 and "⚔️ " or "👁️ ")..tabName
    TabButton.TextColor3 = Color3.new(1, 1, 1)
    TabButton.Font = Enum.Font.Gotham
    TabButton.TextSize = 12
    TabButton.Parent = MainFrame
    
    -- Tab frame
    local TabFrame = Instance.new("Frame")
    TabFrame.Name = tabName.."Frame"
    TabFrame.Size = UDim2.new(1, 0, 1, -60)
    TabFrame.Position = UDim2.new(0, 0, 0, 60)
    TabFrame.BackgroundTransparency = 1
    TabFrame.Visible = i == 1
    TabFrame.Parent = MainFrame
    
    -- Scrolling frame
    local ScrollFrame = Instance.new("ScrollingFrame")
    ScrollFrame.Name = "ScrollFrame"
    ScrollFrame.Size = UDim2.new(1, 0, 1, 0)
    ScrollFrame.Position = UDim2.new(0, 0, 0, 0)
    ScrollFrame.BackgroundTransparency = 1
    ScrollFrame.ScrollBarThickness = 5
    ScrollFrame.CanvasSize = UDim2.new(0, 0, 0, 800)
    ScrollFrame.Parent = TabFrame
    
    TabButtons[tabName] = TabButton
    TabFrames[tabName] = ScrollFrame
    
    TabButton.MouseButton1Click:Connect(function()
        for name, frame in pairs(TabFrames) do
            frame.Visible = (name == tabName)
        end
        for name, button in pairs(TabButtons) do
            button.BackgroundColor3 = (name == tabName) and Color3.fromRGB(60, 60, 60) or Color3.fromRGB(40, 40, 40)
        end
    end)
end

-- Make window draggable
local dragging
local dragInput
local dragStart
local startPos

local function updateInput(input)
    local delta = input.Position - dragStart
    MainFrame.Position = UDim2.new(startPos.X.Scale, startPos.X.Offset + delta.X, startPos.Y.Scale, startPos.Y.Offset + delta.Y)
end

Title.InputBegan:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 then
        dragging = true
        dragStart = input.Position
        startPos = MainFrame.Position
        
        input.Changed:Connect(function()
            if input.UserInputState == Enum.UserInputState.End then
                dragging = false
            end
        end)
    end
end)

Title.InputChanged:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseMovement then
        dragInput = input
    end
end)

UserInputService.InputChanged:Connect(function(input)
    if input == dragInput and dragging then
        updateInput(input)
    end
end)

-- ===== PLAYER FUNCTIONS =====
local PlayerTab = TabFrames["Player"]
local WalkSpeed = 16
local JumpPower = 50
local InfiniteJump = false
local Noclip = false
local FlyEnabled = false
local FlySpeed = 50
local FlyToggled = false
local FlyConnections = {}

-- Create UI elements for Player tab
local function createSlider(parent, name, min, max, default, callback)
    local sliderFrame = Instance.new("Frame")
    sliderFrame.Name = name.."Slider"
    sliderFrame.Size = UDim2.new(1, -20, 0, 50)
    sliderFrame.Position = UDim2.new(0, 10, 0, #parent:GetChildren() * 55)
    sliderFrame.BackgroundTransparency = 1
    sliderFrame.Parent = parent
    
    local label = Instance.new("TextLabel")
    label.Name = "Label"
    label.Size = UDim2.new(1, 0, 0, 20)
    label.Position = UDim2.new(0, 0, 0, 0)
    label.BackgroundTransparency = 1
    label.Text = name..": "..default
    label.TextColor3 = Color3.new(1, 1, 1)
    label.Font = Enum.Font.Gotham
    label.TextSize = 12
    label.TextXAlignment = Enum.TextXAlignment.Left
    label.Parent = sliderFrame
    
    local slider = Instance.new("Frame")
    slider.Name = "Track"
    slider.Size = UDim2.new(1, 0, 0, 10)
    slider.Position = UDim2.new(0, 0, 0, 25)
    slider.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
    slider.BorderSizePixel = 0
    slider.Parent = sliderFrame
    
    local fill = Instance.new("Frame")
    fill.Name = "Fill"
    fill.Size = UDim2.new((default-min)/(max-min), 0, 1, 0)
    fill.Position = UDim2.new(0, 0, 0, 0)
    fill.BackgroundColor3 = Color3.fromRGB(0, 120, 215)
    fill.BorderSizePixel = 0
    fill.Parent = slider
    
    local button = Instance.new("TextButton")
    button.Name = "Button"
    button.Size = UDim2.new(0, 15, 0, 15)
    button.Position = UDim2.new((default-min)/(max-min), -7, 0.5, -7)
    button.BackgroundColor3 = Color3.new(1, 1, 1)
    button.BorderSizePixel = 0
    button.Text = ""
    button.Parent = slider
    
    local function updateValue(value)
        local percent = (value-min)/(max-min)
        fill.Size = UDim2.new(percent, 0, 1, 0)
        button.Position = UDim2.new(percent, -7, 0.5, -7)
        label.Text = name..": "..value
        callback(value)
    end
    
    local dragging = false
    button.MouseButton1Down:Connect(function()
        dragging = true
    end)
    
    UserInputService.InputEnded:Connect(function(input)
        if input.UserInputType == Enum.UserInputType.MouseButton1 then
            dragging = false
        end
    end)
    
    slider.InputBegan:Connect(function(input)
        if input.UserInputType == Enum.UserInputType.MouseButton1 then
            local percent = (input.Position.X - slider.AbsolutePosition.X)/slider.AbsoluteSize.X
            local value = math.floor(min + (max-min) * math.clamp(percent, 0, 1) + 0.5)
            updateValue(value)
        end
    end)
    
    UserInputService.InputChanged:Connect(function(input)
        if dragging and input.UserInputType == Enum.UserInputType.MouseMovement then
            local percent = (input.Position.X - slider.AbsolutePosition.X)/slider.AbsoluteSize.X
            local value = math.floor(min + (max-min) * math.clamp(percent, 0, 1) + 0.5)
            updateValue(value)
        end
    end)
    
    return {Update = updateValue}
end

-- WalkSpeed Slider
local walkSpeedSlider = createSlider(PlayerTab, "WalkSpeed", 16, 100, WalkSpeed, function(value)
    WalkSpeed = value
    pcall(function()
        LocalPlayer.Character.Humanoid.WalkSpeed = value
    end)
end)

-- JumpPower Slider
local jumpPowerSlider = createSlider(PlayerTab, "JumpPower", 50, 200, JumpPower, function(value)
    JumpPower = value
    pcall(function()
        LocalPlayer.Character.Humanoid.JumpPower = value
    end)
end)

-- Infinite Jump Toggle
local infiniteJumpToggle = Instance.new("TextButton")
infiniteJumpToggle.Name = "InfiniteJumpToggle"
infiniteJumpToggle.Size = UDim2.new(1, -20, 0, 30)
infiniteJumpToggle.Position = UDim2.new(0, 10, 0, #PlayerTab:GetChildren() * 55)
infiniteJumpToggle.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
infiniteJumpToggle.BorderSizePixel = 0
infiniteJumpToggle.Text = "Infinite Jump: OFF"
infiniteJumpToggle.TextColor3 = Color3.new(1, 1, 1)
infiniteJumpToggle.Font = Enum.Font.Gotham
infiniteJumpToggle.TextSize = 12
infiniteJumpToggle.Parent = PlayerTab

infiniteJumpToggle.MouseButton1Click:Connect(function()
    InfiniteJump = not InfiniteJump
    infiniteJumpToggle.Text = "Infinite Jump: "..(InfiniteJump and "ON" or "OFF")
    infiniteJumpToggle.BackgroundColor3 = InfiniteJump and Color3.fromRGB(0, 120, 215) or Color3.fromRGB(60, 60, 60)
    
    if InfiniteJump then
        UserInputService.JumpRequest:Connect(function()
            if InfiniteJump and LocalPlayer.Character:FindFirstChildOfClass("Humanoid") then
                LocalPlayer.Character:FindFirstChildOfClass("Humanoid"):ChangeState("Jumping")
            end
        end)
    end
end)

-- ===== CHARACTER HANDLING =====
LocalPlayer.CharacterAdded:Connect(function(character)
    character:WaitForChild("Humanoid")
    pcall(function()
        character.Humanoid.WalkSpeed = WalkSpeed
        character.Humanoid.JumpPower = JumpPower
    end)
end)

-- Apply to current character if exists
if LocalPlayer.Character then
    pcall(function()
        LocalPlayer.Character:WaitForChild("Humanoid").WalkSpeed = WalkSpeed
        LocalPlayer.Character:WaitForChild("Humanoid").JumpPower = JumpPower
    end)
end

-- ===== FLY SYSTEM =====
local flyToggle = Instance.new("TextButton")
flyToggle.Name = "FlyToggle"
flyToggle.Size = UDim2.new(1, -20, 0, 30)
flyToggle.Position = UDim2.new(0, 10, 0, #PlayerTab:GetChildren() * 55)
flyToggle.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
flyToggle.BorderSizePixel = 0
flyToggle.Text = "Fly (Press E): OFF"
flyToggle.TextColor3 = Color3.new(1, 1, 1)
flyToggle.Font = Enum.Font.Gotham
flyToggle.TextSize = 12
flyToggle.Parent = PlayerTab

flyToggle.MouseButton1Click:Connect(function()
    FlyEnabled = not FlyEnabled
    flyToggle.Text = "Fly (Press E): "..(FlyEnabled and "ON" or "OFF")
    flyToggle.BackgroundColor3 = FlyEnabled and Color3.fromRGB(0, 120, 215) or Color3.fromRGB(60, 60, 60)
    
    if not FlyEnabled then
        FlyToggled = false
        for _, conn in pairs(FlyConnections) do conn:Disconnect() end
        FlyConnections = {}
        if LocalPlayer.Character and LocalPlayer.Character:FindFirstChild("HumanoidRootPart") then
            for _, v in pairs(LocalPlayer.Character.HumanoidRootPart:GetChildren()) do
                if v:IsA("BodyVelocity") or v:IsA("BodyGyro") then v:Destroy() end
            end
        end
    end
end)

-- Fly Speed Slider
local flySpeedSlider = createSlider(PlayerTab, "Fly Speed", 20, 150, FlySpeed, function(value)
    FlySpeed = value
end)

-- Fly Activation
table.insert(FlyConnections, UserInputService.InputBegan:Connect(function(input)
    if input.KeyCode == Enum.KeyCode.E and FlyEnabled then
        FlyToggled = not FlyToggled
        if FlyToggled then
            if LocalPlayer.Character and LocalPlayer.Character:FindFirstChild("HumanoidRootPart") then
                local torso = LocalPlayer.Character.HumanoidRootPart
                local bg = Instance.new("BodyGyro", torso)
                bg.P = 9e4
                bg.maxTorque = Vector3.new(9e9, 9e9, 9e9)
                bg.cframe = torso.CFrame
                local bv = Instance.new("BodyVelocity", torso)
                bv.velocity = Vector3.new(0,0,0)
                bv.maxForce = Vector3.new(9e9, 9e9, 9e9)
                
                table.insert(FlyConnections, RunService.Heartbeat:Connect(function()
                    if not FlyToggled or not FlyEnabled or not LocalPlayer.Character or not LocalPlayer.Character:FindFirstChild("HumanoidRootPart") then
                        bg:Destroy(); bv:Destroy(); return
                    end
                    
                    local cam = workspace.CurrentCamera.CFrame
                    local move = Vector3.new()
                    
                    if UserInputService:IsKeyDown(Enum.KeyCode.W) then
                        move = move + (cam.LookVector * FlySpeed)
                    end
                    if UserInputService:IsKeyDown(Enum.KeyCode.S) then
                        move = move - (cam.LookVector * FlySpeed)
                    end
                    if UserInputService:IsKeyDown(Enum.KeyCode.A) then
                        move = move - (cam.RightVector * FlySpeed)
                    end
                    if UserInputService:IsKeyDown(Enum.KeyCode.D) then
                        move = move + (cam.RightVector * FlySpeed)
                    end
                    
                    bv.velocity = move
                    bg.cframe = cam
                end))
            end
        else
            if LocalPlayer.Character and LocalPlayer.Character:FindFirstChild("HumanoidRootPart") then
                for _,v in pairs(LocalPlayer.Character.HumanoidRootPart:GetChildren()) do
                    if v:IsA("BodyVelocity") or v:IsA("BodyGyro") then v:Destroy() end
                end
            end
        end
    end
end))

-- ===== NO CLIP =====
local noclipToggle = Instance.new("TextButton")
noclipToggle.Name = "NoclipToggle"
noclipToggle.Size = UDim2.new(1, -20, 0, 30)
noclipToggle.Position = UDim2.new(0, 10, 0, #PlayerTab:GetChildren() * 55)
noclipToggle.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
noclipToggle.BorderSizePixel = 0
noclipToggle.Text = "Noclip: OFF"
noclipToggle.TextColor3 = Color3.new(1, 1, 1)
noclipToggle.Font = Enum.Font.Gotham
noclipToggle.TextSize = 12
noclipToggle.Parent = PlayerTab

noclipToggle.MouseButton1Click:Connect(function()
    Noclip = not Noclip
    noclipToggle.Text = "Noclip: "..(Noclip and "ON" or "OFF")
    noclipToggle.BackgroundColor3 = Noclip and Color3.fromRGB(0, 120, 215) or Color3.fromRGB(60, 60, 60)
    
    if Noclip then
        table.insert(FlyConnections, RunService.Stepped:Connect(function()
            if Noclip and LocalPlayer.Character then
                for _, v in pairs(LocalPlayer.Character:GetDescendants()) do
                    if v:IsA("BasePart") then
                        v.CanCollide = false
                    end
                end
            end
        end))
    end
end)

-- ===== FPS BOOST =====
local fpsBoostButton = Instance.new("TextButton")
fpsBoostButton.Name = "FPSBoostButton"
fpsBoostButton.Size = UDim2.new(1, -20, 0, 30)
fpsBoostButton.Position = UDim2.new(0, 10, 0, #PlayerTab:GetChildren() * 55)
fpsBoostButton.BackgroundColor3 = Color3.fromRGB(0, 120, 215)
fpsBoostButton.BorderSizePixel = 0
fpsBoostButton.Text = "FPS Boost"
fpsBoostButton.TextColor3 = Color3.new(1, 1, 1)
fpsBoostButton.Font = Enum.Font.Gotham
fpsBoostButton.TextSize = 12
fpsBoostButton.Parent = PlayerTab

fpsBoostButton.MouseButton1Click:Connect(function()
    local decalsyeeted = true
    local g = game
    local w = g:GetService("Workspace")
    local l = g:GetService("Lighting")
    local t = w:WaitForChild("Terrain")
    t.WaterWaveSize = 0
    t.WaterWaveSpeed = 0
    t.WaterReflectance = 0
    t.WaterTransparency = 0
    l.GlobalShadows = false
    l.FogEnd = 9e9
    l.Brightness = 1
    settings().Rendering.QualityLevel = "Level01"
    
    for i,v in pairs(g:GetDescendants()) do
        if v:IsA("Part") or v:IsA("Union") or v:IsA("MeshPart") then
            v.Material = "Plastic"
            v.Reflectance = 0
        elseif v:IsA("Decal") and decalsyeeted then
            v.Transparency = 1
        elseif v:IsA("ParticleEmitter") or v:IsA("Trail") then
            v.Lifetime = NumberRange.new(0)
        end
    end
end)

-- ===== COMBAT TAB =====
local CombatTab = TabFrames["Combat"]

-- [Add combat features here following the same pattern as above]

-- ===== VISUAL TAB =====
local VisualTab = TabFrames["Visuals"]

-- [Add visual features here following the same pattern as above]

-- Initial notification
local notify = Instance.new("TextLabel")
notify.Name = "Notification"
notify.Size = UDim2.new(0, 200, 0, 50)
notify.Position = UDim2.new(1, -210, 1, -60)
notify.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
notify.BorderSizePixel = 0
notify.Text = "Gun Grounds Ultimate Loaded"
notify.TextColor3 = Color3.new(1, 1, 1)
notify.Font = Enum.Font.Gotham
notify.TextSize = 14
notify.Parent = ScreenGui

game:GetService("TweenService"):Create(notify, TweenInfo.new(0.5), {Position = UDim2.new(1, -210, 1, -110)}):Play()
wait(3)
game:GetService("TweenService"):Create(notify, TweenInfo.new(0.5), {Position = UDim2.new(1, -210, 1, -60)}):Play()
wait(0.5)
notify:Destroy()