local Players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")
local player = Players.LocalPlayer

-- Infinite Jump (tapping jump multiple times lets you fly upwards)
UserInputService.JumpRequest:Connect(function()
    local character = player.Character
    if character then
        local humanoid = character:FindFirstChildOfClass("Humanoid")
        if humanoid then
            humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
        end
    end
end)

-- Fly variables
local flying = false
local flySpeed = 50
local flyVelocity = nil
local flyAttachment = nil
local dirStates = {
    forward = false,
    backward = false,
    left = false,
    right = false,
    up = false,
    down = false
}

local function startFly()
    local character = player.Character
    if not character then return end
    local rootPart = character:FindFirstChild("HumanoidRootPart")
    if not rootPart then return end

    -- Clean up previous
    if flyVelocity then
        flyVelocity:Destroy()
    end
    if flyAttachment then
        flyAttachment:Destroy()
    end

    flyAttachment = Instance.new("Attachment")
    flyAttachment.Parent = rootPart

    flyVelocity = Instance.new("LinearVelocity")
    flyVelocity.Attachment0 = flyAttachment
    flyVelocity.MaxForce = 4000
    flyVelocity.VectorVelocity = Vector3.new(0, 0, 0)
    flyVelocity.Parent = rootPart

    flying = true
end

local function stopFly()
    if flyVelocity then
        flyVelocity:Destroy()
        flyVelocity = nil
    end
    if flyAttachment then
        flyAttachment:Destroy()
        flyAttachment = nil
    end
    flying = false
end

local function updateFly()
    if not flying then return end

    local character = player.Character
    if not character then return end
    local rootPart = character:FindFirstChild("HumanoidRootPart")
    if not rootPart or not flyVelocity then return end

    local camera = workspace.CurrentCamera
    local vel = Vector3.new(0, 0, 0)

    -- PC keys
    if UserInputService:IsKeyDown(Enum.KeyCode.W) or dirStates.forward then
        vel = vel + camera.CFrame.LookVector * flySpeed
    end
    if UserInputService:IsKeyDown(Enum.KeyCode.S) or dirStates.backward then
        vel = vel - camera.CFrame.LookVector * flySpeed
    end
    if UserInputService:IsKeyDown(Enum.KeyCode.A) or dirStates.left then
        vel = vel - camera.CFrame.RightVector * flySpeed
    end
    if UserInputService:IsKeyDown(Enum.KeyCode.D) or dirStates.right then
        vel = vel + camera.CFrame.RightVector * flySpeed
    end
    if UserInputService:IsKeyDown(Enum.KeyCode.Space) or dirStates.up then
        vel = vel + Vector3.new(0, 1, 0) * flySpeed
    end
    if UserInputService:IsKeyDown(Enum.KeyCode.LeftShift) or dirStates.down then
        vel = vel + Vector3.new(0, -1, 0) * flySpeed
    end

    flyVelocity.VectorVelocity = vel
end

-- Toggle fly with F key (works on PC)
UserInputService.InputBegan:Connect(function(input, gameProcessed)
    if gameProcessed then return end
    if input.KeyCode == Enum.KeyCode.F then
        if flying then
            stopFly()
        else
            startFly()
        end
    end
end)

-- Update loop
RunService.Heartbeat:Connect(updateFly)

-- Mobile GUI with buttons
local isMobile = UserInputService.TouchEnabled and not UserInputService.KeyboardEnabled
if isMobile then
    local screenGui = Instance.new("ScreenGui")
    screenGui.Name = "InfiniteYieldFly"
    screenGui.ResetOnSpawn = false
    screenGui.Parent = player:WaitForChild("PlayerGui")

    local frame = Instance.new("Frame")
    frame.Size = UDim2.new(0, 280, 0, 280)
    frame.Position = UDim2.new(0, 20, 0.5, -140)
    frame.BackgroundColor3 = Color3.fromRGB(40, 40, 40)
    frame.BackgroundTransparency = 0.15
    frame.Active = true
    frame.Draggable = true
    frame.Parent = screenGui

    local uicorner = Instance.new("UICorner")
    uicorner.CornerRadius = UDim.new(0, 12)
    uicorner.Parent = frame

    local stroker = Instance.new("UIStroke")
    stroker.Color = Color3.fromRGB(255, 255, 255)
    stroker.Thickness = 2
    stroker.Transparency = 0.5
    stroker.Parent = frame

    -- Fly toggle button
    local flyToggle = Instance.new("TextButton")
    flyToggle.Size = UDim2.new(1, -20, 0, 50)
    flyToggle.Position = UDim2.new(0, 10, 0, 10)
    flyToggle.BackgroundColor3 = Color3.fromRGB(200, 50, 50)
    flyToggle.Text = "FLY: OFF"
    flyToggle.TextColor3 = Color3.new(1, 1, 1)
    flyToggle.TextScaled = true
    flyToggle.Font = Enum.Font.GothamBold
    flyToggle.Parent = frame

    local toggleCorner = Instance.new("UICorner")
    toggleCorner.CornerRadius = UDim.new(0, 8)
    toggleCorner.Parent = flyToggle

    flyToggle.MouseButton1Click:Connect(function()
        if flying then
            stopFly()
            flyToggle.Text = "FLY: OFF"
            flyToggle.BackgroundColor3 = Color3.fromRGB(200, 50, 50)
        else
            startFly()
            flyToggle.Text = "FLY: ON"
            flyToggle.BackgroundColor3 = Color3.fromRGB(50, 200, 50)
        end
    end)

    -- Directions grid
    local gridLayout = Instance.new("UIGridLayout")
    gridLayout.CellSize = UDim2.new(0.45, 0, 0, 50)
    gridLayout.CellPadding = UDim2.new(0.05, 0, 0, 5)
    gridLayout.SortOrder = Enum.SortOrder.LayoutOrder
    gridLayout.Parent = frame

    local dirButtons = {
        {name = "↑ FORWARD", dir = "forward", order = 1},
        {name = "← LEFT", dir = "left", order = 2},
        {name = "→ RIGHT", dir = "right", order = 3},
        {name = "↓ BACK", dir = "backward", order = 4},
        {name = "▲ UP", dir = "up", order = 5},
        {name = "▼ DOWN", dir = "down", order = 6}
    }

    for _, btnData in ipairs(dirButtons) do
        local btn = Instance.new("TextButton")
        btn.Name = btnData.name
        btn.Text = btnData.name
        btn.TextColor3 = Color3.new(1, 1, 1)
        btn.TextScaled = true
        btn.BackgroundColor3 = Color3.fromRGB(70, 70, 70)
        btn.Font = Enum.Font.Gotham
        btn.LayoutOrder = btnData.order
        btn.Parent = frame

        local btnCorner = Instance.new("UICorner")
        btnCorner.CornerRadius = UDim.new(0, 8)
        btnCorner.Parent = btn

        local btnStroke = Instance.new("UIStroke")
        btnStroke.Color = Color3.fromRGB(100, 100, 100)
        btnStroke.Thickness = 1
        btnStroke.Parent = btn

        -- Hold to move
        btn.MouseButton1Down:Connect(function()
            dirStates[btnData.dir] = true
        end)

        btn.MouseButton1Up:Connect(function()
            dirStates[btnData.dir] = false
        end)

        btn.TouchTap:Connect(function()
            dirStates[btnData.dir] = false
        end)

        btn.MouseLeave:Connect(function()
            dirStates[btnData.dir] = false
        end)
    end
end

print("Simple Infinite Yield Client Hack Loaded! Infinite Jump always on. Fly with F key (PC) or GUI buttons (Mobile).")