-- ⬇️  LocalScript inside StarterPlayerScripts or StarterCharacterScripts
local RunService      = game:GetService("RunService")
local Players         = game:GetService("Players")
local player          = Players.LocalPlayer
local camera          = workspace.CurrentCamera

--------------------------------------------------------------------
-- CONFIG ----------------------------------------------------------
--------------------------------------------------------------------
local offset          = CFrame.new(0, 0, -1.5)  -- change Z to pull back / Y to raise or lower
local bindName        = "CustomFPSCam"          -- render-step binding name
--------------------------------------------------------------------

--------------------------------------------------------------------
-- 1)  Make body parts stay visible in first-person
--------------------------------------------------------------------
local function forceBodyVisible(character)
    for _, part in ipairs(character:GetDescendants()) do
        if part:IsA("BasePart") and part.Name ~= "Head" then
            part.LocalTransparencyModifier = part.Transparency
            part:GetPropertyChangedSignal("LocalTransparencyModifier"):Connect(function()
                part.LocalTransparencyModifier = part.Transparency
            end)
        end
    end
end

--------------------------------------------------------------------
-- 2)  Attach camera to CameraRigPart each frame
--------------------------------------------------------------------
local function followCamPart(character, camPart)
    -- Ensure only one render-step connection is running
    RunService:UnbindFromRenderStep(bindName)

    RunService:BindToRenderStep(bindName, Enum.RenderPriority.Camera.Value, function()
        if not camPart.Parent then return end

        -- Desired camera frame (eye point) = camPart + offset
        local desiredCF = camPart.CFrame * offset

        -- (Optional) very simple anti-clip test
        local params = RaycastParams.new()
        params.FilterDescendantsInstances = { character }
        params.FilterType = Enum.RaycastFilterType.Blacklist
        local rayDir  = desiredCF.Position - camPart.Position
        local result  = workspace:Raycast(camPart.Position, rayDir, params)
        if result then          -- if a wall is in the way, stop before it
            desiredCF = CFrame.new(result.Position)
        end

        camera.CFrame = desiredCF
    end)
end

--------------------------------------------------------------------
-- 3)  Main setup per character spawn / respawn
--------------------------------------------------------------------
local function setupCharacter(character)
    forceBodyVisible(character)

    -- Don’t let Humanoid.CameraOffset fight us
    local hum = character:WaitForChild("Humanoid", 5)
    if hum then hum.CameraOffset = Vector3.new() end

    -- Wait for your custom camera part
    local camPart = character:WaitForChild("CameraRigPart", 5)
    if not camPart then
        warn("CameraRigPart not found in character!")
        return
    end

    -- Give full control to the script
    camera.CameraType = Enum.CameraType.Scriptable
    followCamPart(character, camPart)
end

--------------------------------------------------------------------
-- 4)  Hook into current & future spawns
--------------------------------------------------------------------
if player.Character then
    setupCharacter(player.Character)
end
player.CharacterAdded:Connect(setupCharacter)

--------------------------------------------------------------------
-- 5)  Optional: lock mouse to centre & hide cursor
--------------------------------------------------------------------
-- game:GetService("UserInputService").MouseBehavior = Enum.MouseBehavior.LockCenter
-- game:GetService("UserInputService").MouseIconEnabled = false