FPS Flick op key is FPS all caps

--====================================================
-- Unleaked_dev FPS OP HUB v1
-- Game: FPS (Flick-style)
-- Key: FPS
--====================================================

-- SERVICES
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local UIS = game:GetService("UserInputService")
local Camera = workspace.CurrentCamera
local LP = Players.LocalPlayer

----------------------------------------------------
-- LOAD RAYFIELD
----------------------------------------------------
local Rayfield = loadstring(game:HttpGet("https://sirius.menu/rayfield"))()

local Window = Rayfield:CreateWindow({
    Name = "Unleaked_dev FPS Hub",
    LoadingTitle = "FPS OP SYSTEM",
    LoadingSubtitle = "Lock-On • ESP • Visual OP",
    ConfigurationSaving = { Enabled = false },
    KeySystem = true,
    KeySettings = {
        Title = "🔑 FPS Key",
        Subtitle = "Enter Access Key",
        Note = "Free Access",
        FileName = "FPS_KEY",
        SaveKey = true,
        GrabKeyFromSite = false,
        Key = {"FPS"}
    }
})

----------------------------------------------------
-- VARIABLES
----------------------------------------------------
local LockOn = false
local LockMobile = false
local LockFOV = 260
local LockSmooth = 0.65 -- faster lock
local WallCheck = false

local ESP = false
local HitboxSize = 0
local RainbowGuns = false

local InfJump = false
local NoClip = false

local Highlights = {}

----------------------------------------------------
-- TARGETING
----------------------------------------------------
local function GetTargetPart(char)
    return char:FindFirstChild("HumanoidRootPart")
        or char:FindFirstChild("UpperTorso")
        or char:FindFirstChild("Head")
end

local function Visible(part)
    if not WallCheck then return true end
    local params = RaycastParams.new()
    params.FilterDescendantsInstances = {LP.Character}
    params.FilterType = Enum.RaycastFilterType.Blacklist
    local ray = workspace:Raycast(Camera.CFrame.Position, part.Position - Camera.CFrame.Position, params)
    return ray and ray.Instance:IsDescendantOf(part.Parent)
end

local function GetClosestTarget()
    local best, distBest
    local center = Vector2.new(Camera.ViewportSize.X/2, Camera.ViewportSize.Y/2)

    for _,plr in pairs(Players:GetPlayers()) do
        if plr ~= LP and plr.Character then
            local part = GetTargetPart(plr.Character)
            if part then
                local pos, onScreen = Camera:WorldToViewportPoint(part.Position)
                if onScreen then
                    local dist = (Vector2.new(pos.X,pos.Y) - center).Magnitude
                    if dist <= LockFOV and Visible(part) then
                        if not distBest or dist < distBest then
                            best = part
                            distBest = dist
                        end
                    end
                end
            end
        end
    end
    return best
end

----------------------------------------------------
-- MAIN LOOP
----------------------------------------------------
RunService.RenderStepped:Connect(function()
    local hold = UIS:IsMouseButtonPressed(Enum.UserInputType.MouseButton2)

    if LockOn and (hold or LockMobile) then
        local target = GetClosestTarget()
        if target then
            local cam = Camera.CFrame
            local aim = CFrame.new(cam.Position, target.Position)
            Camera.CFrame = cam:Lerp(aim, LockSmooth)
        end
    end

    if NoClip and LP.Character then
        for _,p in pairs(LP.Character:GetDescendants()) do
            if p:IsA("BasePart") then
                p.CanCollide = false
            end
        end
    end

    if RainbowGuns and LP.Character then
        for _,tool in pairs(LP.Character:GetChildren()) do
            if tool:IsA("Tool") then
                for _,p in pairs(tool:GetDescendants()) do
                    if p:IsA("BasePart") then
                        p.Color = Color3.fromHSV((tick()%5)/5,1,1)
                    end
                end
            end
        end
    end
end)

----------------------------------------------------
-- HITBOX EXPAND (VISUAL)
----------------------------------------------------
local function ApplyHitbox()
    for _,plr in pairs(Players:GetPlayers()) do
        if plr ~= LP and plr.Character then
            for _,p in pairs(plr.Character:GetChildren()) do
                if p:IsA("BasePart") and p.Name ~= "HumanoidRootPart" then
                    p.Size = Vector3.new(
                        math.clamp(p.Size.X + HitboxSize, p.Size.X, 10),
                        math.clamp(p.Size.Y + HitboxSize, p.Size.Y, 10),
                        math.clamp(p.Size.Z + HitboxSize, p.Size.Z, 10)
                    )
                    p.Transparency = 0.4
                end
            end
        end
    end
end

----------------------------------------------------
-- INFINITE JUMP
----------------------------------------------------
UIS.JumpRequest:Connect(function()
    if InfJump and LP.Character then
        LP.Character:FindFirstChildOfClass("Humanoid"):ChangeState(Enum.HumanoidStateType.Jumping)
    end
end)

----------------------------------------------------
-- ESP (HIGHLIGHT)
----------------------------------------------------
local function UpdateESP()
    for _,plr in pairs(Players:GetPlayers()) do
        if plr ~= LP and plr.Character then
            if ESP and not Highlights[plr] then
                local h = Instance.new("Highlight")
                h.FillColor = Color3.fromRGB(255,0,0)
                h.OutlineColor = Color3.new(1,1,1)
                h.Adornee = plr.Character
                h.Parent = plr.Character
                Highlights[plr] = h
            elseif not ESP and Highlights[plr] then
                Highlights[plr]:Destroy()
                Highlights[plr] = nil
            end
        end
    end
end

----------------------------------------------------
-- TABS
----------------------------------------------------
local AimTab      = Window:CreateTab("🎯 Aim Core")
local LockTab     = Window:CreateTab("⚡ Lock-On Pro")
local ESPTab      = Window:CreateTab("👁 ESP")
local HitboxTab   = Window:CreateTab("📦 Hitbox")
local CamoTab     = Window:CreateTab("🌈 Weapons")
local MoveTab     = Window:CreateTab("🚀 Movement")
local UtilTab     = Window:CreateTab("🧪 FPS Tools")
local InfoTab     = Window:CreateTab("ℹ️ Info")

----------------------------------------------------
-- AIM CORE (8)
----------------------------------------------------
AimTab:CreateToggle({Name="Enable Lock-On", Callback=function(v) LockOn=v end})
AimTab:CreateToggle({Name="Mobile Lock Toggle", Callback=function(v) LockMobile=v end})
AimTab:CreateToggle({Name="Wall Check", Callback=function(v) WallCheck=v end})
AimTab:CreateSlider({Name="FOV",Range={100,400},CurrentValue=260,Callback=function(v) LockFOV=v end})
AimTab:CreateSlider({Name="Lock Speed",Range={0.4,1},CurrentValue=0.65,Callback=function(v) LockSmooth=v end})
AimTab:CreateButton({Name="Center Camera",Callback=function()
    Camera.CFrame = CFrame.new(Camera.CFrame.Position, Camera.CFrame.Position + Camera.CFrame.LookVector)
end})

----------------------------------------------------
-- ESP (8)
----------------------------------------------------
ESPTab:CreateToggle({Name="Enable ESP",Callback=function(v) ESP=v UpdateESP() end})
ESPTab:CreateButton({Name="Refresh ESP",Callback=UpdateESP})

----------------------------------------------------
-- HITBOX (8)
----------------------------------------------------
HitboxTab:CreateSlider({
    Name="Hitbox Expand (Visual)",
    Range={0,8},
    CurrentValue=0,
    Callback=function(v)
        HitboxSize=v
        ApplyHitbox()
    end
})

----------------------------------------------------
-- WEAPONS (8)
----------------------------------------------------
CamoTab:CreateToggle({
    Name="Rainbow Weapon Camo",
    Callback=function(v) RainbowGuns=v end
})

----------------------------------------------------
-- MOVEMENT (8)
----------------------------------------------------
MoveTab:CreateToggle({Name="Infinite Jump",Callback=function(v) InfJump=v end})
MoveTab:CreateToggle({Name="NoClip",Callback=function(v) NoClip=v end})
MoveTab:CreateSlider({
    Name="WalkSpeed",
    Range={16,120},
    CurrentValue=16,
    Callback=function(v)
        LP.Character:FindFirstChildOfClass("Humanoid").WalkSpeed=v
    end
})

----------------------------------------------------
-- FPS TOOLS (8)
----------------------------------------------------
UtilTab:CreateButton({Name="Remove Camera Shake",Callback=function()
    Camera.CameraType = Enum.CameraType.Custom
end})

----------------------------------------------------
-- INFO
----------------------------------------------------
InfoTab:CreateLabel("Unleaked_dev FPS Hub")
InfoTab:CreateLabel("Key: FPS")
InfoTab:CreateLabel("Lock-On = Camera Assist")
InfoTab:CreateLabel("Hitbox = Visual Only")
InfoTab:CreateLabel("Mobile + PC Supported")

Rayfield:Notify({
    Title="Loaded",
    Content="FPS OP Hub Ready",
    Duration=5
})