-- =============================================================================
-- 【高级脚本遮盖与单例销毁系统 - 已修补】
-- =============================================================================
-- 【补丁 1：等待游戏加载】
repeat task.wait() until game:IsLoaded()
local Players = game:GetService("Players")
repeat task.wait() until Players.LocalPlayer

local globalEnv = (getgenv and getgenv()) or _G
local SCRIPT_ID = "Refined_ShiftLock_Singleton_Instance"

if globalEnv[SCRIPT_ID] and type(globalEnv[SCRIPT_ID].Destroy) == "function" then
    pcall(function() globalEnv[SCRIPT_ID].Destroy() end)
    globalEnv[SCRIPT_ID] = nil
    task.wait(0.05)
end

local Janitor = { Connections = {}, Instances = {}, RenderSteps = {}, Actions = {} }
function Janitor:AddConnection(conn) table.insert(self.Connections, conn) return conn end
function Janitor:AddInstance(ins) table.insert(self.Instances, ins) return ins end
function Janitor:AddRenderStep(name) table.insert(self.RenderSteps, name) return name end
function Janitor:AddAction(name) table.insert(self.Actions, name) return name end

function Janitor.Destroy()
    for _, conn in ipairs(Janitor.Connections) do if conn and conn.Connected then conn:Disconnect() end end
    for _, ins in ipairs(Janitor.Instances) do if ins and ins.Parent then ins:Destroy() end end
    local RunService = game:GetService("RunService")
    for _, name in ipairs(Janitor.RenderSteps) do pcall(function() RunService:UnbindFromRenderStep(name) end) end
    for _, name in ipairs(Janitor.Actions) do pcall(function() game:GetService("ContextActionService"):UnbindAction(name) end) end
    local UserInputService = game:GetService("UserInputService")
    local UserGameSettings = UserSettings():GetService("UserGameSettings")
    UserInputService.MouseBehavior = Enum.MouseBehavior.Default
    pcall(function() UserGameSettings.RotationType = Enum.RotationType.MovementRelative end)
    pcall(function() game:GetService("Players").LocalPlayer:GetMouse().Icon = "" end)
end
globalEnv[SCRIPT_ID] = Janitor

-- =============================================================================
-- --- 0. Creator Notification System ---
-- =============================================================================
local StarterGui = game:GetService("StarterGui")
local TARGET_USERNAME = "NPC_PlayersNoob"

local function sendCreatorNotification(player)
    if player.Name == TARGET_USERNAME then
        task.spawn(function()
            local success = false
            while not success and globalEnv[SCRIPT_ID] == Janitor do
                success = pcall(function()
                    StarterGui:SetCore("SendNotification", {
                        Title = "Script Creator",
                        Text = player.DisplayName .. " is here",
                        Duration = 5
                    })
                end)
                if not success then task.wait(0.5) end
            end
        end)
    end
end
Janitor:AddConnection(Players.PlayerAdded:Connect(sendCreatorNotification))
for _, player in ipairs(Players:GetPlayers()) do sendCreatorNotification(player) end

-- =============================================================================
-- --- 1. GUI 系统 ---
-- =============================================================================
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")
local ContextActionService = game:GetService("ContextActionService") 
local HapticService = game:GetService("HapticService") 

local LocalPlayer = Players.LocalPlayer
local PlayerGui = LocalPlayer:WaitForChild("PlayerGui")
local UserGameSettings = UserSettings():GetService("UserGameSettings")

-- 【补丁 2：更健壮的 RotationType 同步函数】
local function SyncRotationSettings(enabled)
    pcall(function()
        if enabled then
            if UserGameSettings.RotationType ~= Enum.RotationType.CameraRelative then
                UserGameSettings.RotationType = Enum.RotationType.CameraRelative
            end
        else
            if UserGameSettings.RotationType ~= Enum.RotationType.MovementRelative then
                UserGameSettings.RotationType = Enum.RotationType.MovementRelative
            end
        end
    end)
end

local ShiftLockGui = Instance.new("ScreenGui")
ShiftLockGui.Name = "ShiftLock_V1_Refined"
ShiftLockGui.ResetOnSpawn = false
ShiftLockGui.Parent = PlayerGui
Janitor:AddInstance(ShiftLockGui)

local LockButton = Instance.new("ImageButton")
LockButton.Name = "LockButton"
LockButton.Parent = ShiftLockGui
LockButton.AnchorPoint = Vector2.new(0.5, 0.5)
LockButton.Position = UDim2.new(0.83, 0, 0.83, 0)
LockButton.Size = UDim2.new(0.045, 0, 0.045, 0) 
LockButton.BackgroundTransparency = 1 
LockButton.Image = "rbxasset://textures/ui/mouseLock_off@2x.png"

local UIAspect = Instance.new("UIAspectRatioConstraint")
UIAspect.AspectRatio = 1
UIAspect.AspectType = Enum.AspectType.ScaleWithParentSize
UIAspect.Parent = LockButton

local Crosshair = Instance.new("ImageLabel")
Crosshair.Name = "Crosshair"
Crosshair.Parent = ShiftLockGui
Crosshair.AnchorPoint = Vector2.new(0.5, 0.5)
Crosshair.Position = UDim2.new(0.5, 0, 0.5, -29)
Crosshair.Size = UDim2.new(0, 32, 0, 32) 
Crosshair.BackgroundTransparency = 1
Crosshair.Image = "rbxasset://textures/MouseLockedCursor.png"
Crosshair.Visible = false

-- --- 2. 核心变量 ---
local isShiftLockEnabled = false
local OFFSET_VAL = 1.75 
local isMobile = false 
local MOUSE_SINK_ACTION = "DisableRightClickAction" 
Janitor:AddAction(MOUSE_SINK_ACTION)

local isCameraAnimated = false
local animatedFrameCounter = 0 
local currentTargetZoom = 12.5  
local smoothedOffset = 0  
local ANIMATION_SPEED = 18 

-- --- 3. 右键屏蔽函数 ---
local function handleRightClick(actionName, inputState, inputObject)
    return Enum.ContextActionResult.Sink
end

-- --- 4. 核心同步逻辑 ---
local function enforceShiftLock(deltaTime)
    deltaTime = deltaTime or 0.016
    local cam = workspace.CurrentCamera
    if not cam then return end

    local character = LocalPlayer.Character
    local rootPart = character and character:FindFirstChild("HumanoidRootPart")
    local humanoid = character and character:FindFirstChildOfClass("Humanoid")

    local isDeadState = (not character or not humanoid or humanoid.Health <= 0 or not rootPart)
    local isCurrentlyAnimated = false

    if not isDeadState then
        if cam.CameraType == Enum.CameraType.Scriptable or cam.CameraSubject ~= humanoid then
            isCurrentlyAnimated = true
        end
    end
    
    if isCurrentlyAnimated then
        animatedFrameCounter = 0 
        isCameraAnimated = true
    else
        if animatedFrameCounter > 0 then
            animatedFrameCounter = animatedFrameCounter - 1
            isCameraAnimated = true 
        else
            isCameraAnimated = false 
        end
    end

    if isShiftLockEnabled then
        UserInputService.MouseBehavior = Enum.MouseBehavior.LockCenter
        -- 这里使用补丁函数确保状态
        SyncRotationSettings(true)
        Crosshair.Visible = (isCameraAnimated == false) and isMobile
    else
        Crosshair.Visible = false
    end

    local actualDistance = 10
    if cam.Focus then
        actualDistance = (cam.Focus.p - cam.CFrame.p).Magnitude
    end

    if currentTargetZoom >= 0.7 and currentTargetZoom <= 0.9 then
        currentTargetZoom = 0.6
        local oldMin = LocalPlayer.CameraMinZoomDistance
        LocalPlayer.CameraMinZoomDistance = 0.6
        task.defer(function() if LocalPlayer then LocalPlayer.CameraMinZoomDistance = oldMin end end)
    end

    local isFirstPerson = (currentTargetZoom <= 0.65) or (actualDistance <= 0.65)
    local targetOffset = (isShiftLockEnabled and not isFirstPerson and not isCameraAnimated) and OFFSET_VAL or 0
    
    if math.abs(targetOffset - smoothedOffset) < 0.001 then
        smoothedOffset = targetOffset
    else
        smoothedOffset = smoothedOffset + (targetOffset - smoothedOffset) * (1 - math.exp(-ANIMATION_SPEED * deltaTime))
    end

    if smoothedOffset ~= 0 or isShiftLockEnabled then 
        local shiftedCFrame = cam.CFrame * CFrame.new(smoothedOffset, 0, 0)
        cam.CFrame = shiftedCFrame
        cam.Focus = shiftedCFrame * CFrame.new(0, 0, -actualDistance)
    end
end

-- --- 5. Toggle 切换函数 ---
local function ToggleShiftLock(forceState)
    if forceState ~= nil then isShiftLockEnabled = forceState else isShiftLockEnabled = not isShiftLockEnabled end

    -- 震动反馈
    task.spawn(function()
        local gamepad = Enum.UserInputType.Gamepad1 
        if HapticService:IsVibrationSupported(gamepad) then
            pcall(function() HapticService:SetMotor(gamepad, Enum.VibrationMotor.Large, 0.4) task.wait(0.05) HapticService:SetMotor(gamepad, Enum.VibrationMotor.Large, 0) end)
        end
    end)
    
    if isShiftLockEnabled then
        LockButton.Image = "rbxasset://textures/ui/mouseLock_on@2x.png"
        LocalPlayer:GetMouse().Icon = "rbxasset://textures/MouseLockedCursor.png"
        SyncRotationSettings(true) -- 强制同步
        
        if not isMobile then
            ContextActionService:BindActionAtPriority(
                MOUSE_SINK_ACTION, handleRightClick, false, 
                Enum.ContextActionPriority.High.Value + 100, Enum.UserInputType.MouseButton2
            )
        end
        
        pcall(function()
            UserGameSettings.ComputerCameraMovementMode = Enum.ComputerCameraMovementMode.Classic
            UserGameSettings.TouchCameraMovementMode = Enum.TouchCameraMovementMode.Classic
        end)
    else
        LockButton.Image = "rbxasset://textures/ui/mouseLock_off@2x.png"
        LocalPlayer:GetMouse().Icon = ""
        ContextActionService:UnbindAction(MOUSE_SINK_ACTION)
        SyncRotationSettings(false) -- 强制还原
        UserInputService.MouseBehavior = Enum.MouseBehavior.Default
    end
end

RunService:UnbindFromRenderStep("ShiftLock_Sync")
RunService:BindToRenderStep("ShiftLock_Sync", Enum.RenderPriority.Camera.Value + 1, enforceShiftLock)
Janitor:AddRenderStep("ShiftLock_Sync")

-- --- 6. 设备动态切换逻辑 ---
local function UpdateDeviceUI(lastInputType)
    isMobile = (lastInputType == Enum.UserInputType.Touch)
    LocalPlayer.DevEnableMouseLock = false 

    if isMobile then
        LockButton.Visible = true
        ContextActionService:UnbindAction(MOUSE_SINK_ACTION) 
    else
        LockButton.Visible = false
        if isShiftLockEnabled then
            ContextActionService:BindActionAtPriority(
                MOUSE_SINK_ACTION, handleRightClick, false, 
                Enum.ContextActionPriority.High.Value + 100, Enum.UserInputType.MouseButton2
            )
        end
    end
end

-- --- 7. 事件绑定 ---
Janitor:AddConnection(UserInputService.PointerAction:Connect(function(wheelDelta)
    if wheelDelta ~= 0 then
        currentTargetZoom = wheelDelta > 0 and math.max(0.6, currentTargetZoom - 1.5) or math.min(LocalPlayer.CameraMaxZoomDistance, currentTargetZoom + 1.5)
    end
end))

Janitor:AddConnection(UserInputService.InputBegan:Connect(function(input, gpe)
    if gpe then return end
    if not isMobile and (input.KeyCode == Enum.KeyCode.LeftShift or input.KeyCode == Enum.KeyCode.RightShift) then
        ToggleShiftLock()
    end
end))

Janitor:AddConnection(LockButton.MouseButton1Click:Connect(function() if isMobile then ToggleShiftLock() end end))
Janitor:AddConnection(UserInputService.LastInputTypeChanged:Connect(UpdateDeviceUI))
UpdateDeviceUI(UserInputService:GetLastInputType())

Janitor:AddConnection(LocalPlayer.CharacterAdded:Connect(function(character)
    currentTargetZoom = 12.5
    smoothedOffset = 0 
    if isShiftLockEnabled then
        LocalPlayer:GetMouse().Icon = "rbxasset://textures/MouseLockedCursor.png"
        SyncRotationSettings(true)
        if not isMobile then
            ContextActionService:BindActionAtPriority(MOUSE_SINK_ACTION, handleRightClick, false, Enum.ContextActionPriority.High.Value + 100, Enum.UserInputType.MouseButton2)
        end
    else
        SyncRotationSettings(false)
        UserInputService.MouseBehavior = Enum.MouseBehavior.Default
    end
end))