local UserInputService              = game:GetService("UserInputService")
local Players                       = game:GetService("Players")
local ReplicatedStorage             = game:GetService("ReplicatedStorage")

local R                             = require(ReplicatedStorage:WaitForChild("Resources"))

local Lerps                         = R:LoadLibrary("Lerps")

local Player                        = Players.LocalPlayer
local Camera                        = workspace.CurrentCamera

local Mouse                         = Player:GetMouse()

local OTSSettings                   = {
    maxScrollOut        = 25;
    minScrollOut        = 5;
    defaultScrollIn     = 5;
}

local OTSStatus                    = {
    scroll              = (OTSSettings.defaultScrollIn -  OTSSettings.minScrollOut) / (OTSSettings.maxScrollOut -  OTSSettings.minScrollOut);
    pitch               = 0;
}

local CharacterStatus, CharacterFunctions

function GetMousePosition()
    return Vector2.new(Mouse.x, Mouse.y)
end

UserInputService.InputChanged:Connect(function(inputObject)
    if inputObject.UserInputType == Enum.UserInputType.MouseWheel then
        OTSStatus.scroll = math.clamp(OTSStatus.scroll + (inputObject.Position.Z / 20), 0, 1)
    end
end)

UserInputService.MouseIconEnabled       = false

return function(_CharacterStatus, _CharacterFunctions)
    CharacterStatus, CharacterFunctions = _CharacterStatus, _CharacterFunctions

    Camera.CameraType = Enum.CameraType.Scriptable

    repeat wait() until CharacterStatus.Character
    local character = CharacterStatus.Character

    local lastMousePosition = nil

    local testPart = Instance.new("Part", workspace)
    testPart.CFrame = character.Head.CFrame * CFrame.new(2, 2, 5)
    testPart.Anchored = true
    testPart.Color = Color3.new(1, 0, 0)

    local testDirectionPart = Instance.new("Part", workspace)
    testDirectionPart.CFrame = testPart.CFrame * CFrame.new(2, 2, 5)
    testDirectionPart.Anchored = true
    testDirectionPart.Color = Color3.new(0, 1, 0)

    character.Humanoid.AutoRotate = false

    CharacterFunctions.RenderstepFunctions["OTS"] = function()
        local curMousePosition = GetMousePosition()
        if not lastMousePosition then
            lastMousePosition = curMousePosition
            return
        end

        local mouseDelta = lastMousePosition - curMousePosition

        testPart.CFrame = testPart.CFrame * CFrame.Angles(0, mouseDelta.x / 100, 0)
        testDirectionPart.CFrame = CFrame.new(testPart.CFrame.p) * CFrame.new(2, 2, 5)-- * CFrame.fromOrientation(testPart.Rotation.x, testPart.Rotation.y, testPart.Rotation.z)

        OTSStatus.pitch = math.clamp(OTSStatus.pitch + mouseDelta.y / 100, -0.5, 0.2)

        character.HumanoidRootPart.CFrame = character.HumanoidRootPart.CFrame * CFrame.Angles(0, mouseDelta.x / 100, 0)
        Camera.CFrame = character.HumanoidRootPart.CFrame * CFrame.new(2, 5, Lerps.number(OTSSettings.minScrollOut, OTSSettings.maxScrollOut, OTSStatus.scroll)) * CFrame.Angles(OTSStatus.pitch, 0, 0)

        lastMousePosition = curMousePosition
    end
end