Simple Blur Cam

using GTA;
using GTA.Math;
using GTA.Native;
using System;
using System.IO;
using System.Windows.Forms;



public class SimpleBlurCam : Script
{
    string ScriptName = "SimpleBlurCam";
    string ScriptVer = "1.0";

    public SimpleBlurCam()
    {
        Tick += OnTick;
    }

    Camera TestCam = null;
    Camera From = null;
    Vector3 CamRot = Vector3.Zero;
    void OnTick(object sender, EventArgs e)
    {
        if (TestCam != null)
        {
            if(TestCam == World.RenderingCamera) Function.Call(Hash.HIDE_HUD_AND_RADAR_THIS_FRAME);
            else if(GameplayCamera.IsRendering) DisplayHelpTextThisFrame("Press ~INPUT_CONTEXT~ to switch to the BlurCam.");

            Vector3 offset = Function.Call<Vector3>(Hash.GET_OFFSET_FROM_ENTITY_GIVEN_WORLD_COORDS, Game.Player.Character, TestCam.Position.X, TestCam.Position.Y, TestCam.Position.Z);
            if (offset.Y < 0)
            {
                TestCam.Rotation = Game.Player.Character.CurrentVehicle.Rotation - (new Vector3(-CamRot.X, CamRot.Y, CamRot.Z));
            }
            else
            {
                TestCam.Rotation = Game.Player.Character.CurrentVehicle.Rotation - (new Vector3(CamRot.X, CamRot.Y, CamRot.Z));
            }
        }
        if (Game.IsControlJustPressed(2, GTA.Control.Context))
        {
            if (TestCam == null)
            {
                if (GameplayCamera.IsRendering) return;
                if (CanWeUse(Game.Player.Character.CurrentVehicle))
                {

                    TestCam =  World.CreateCamera(Game.Player.Character.Position + (Game.Player.Character.ForwardVector * 10), new Vector3(0, 0, 0), GameplayCamera.FieldOfView);
                    From = World.CreateCamera(GameplayCamera.Position, GameplayCamera.Rotation, GameplayCamera.FieldOfView);

                    CamRot = Game.Player.Character.Rotation - new Vector3(-World.RenderingCamera.Rotation.X, World.RenderingCamera.Rotation.Y, World.RenderingCamera.Rotation.Z);
                    TestCam.Position = World.RenderingCamera.Position;
                    TestCam.Rotation = World.RenderingCamera.Rotation;
                    TestCam.FieldOfView = World.RenderingCamera.FieldOfView;

                    Camera JoshCam = World.RenderingCamera;
                    Vector3 offset = Function.Call<Vector3>(Hash.GET_OFFSET_FROM_ENTITY_GIVEN_WORLD_COORDS, Game.Player.Character, TestCam.Position.X, TestCam.Position.Y, TestCam.Position.Z);
                    Function.Call(Hash.ATTACH_CAM_TO_ENTITY, TestCam, Game.Player.Character.CurrentVehicle, offset.X, offset.Y, offset.Z, true);
                    UI.ShowSubtitle("~b~BlurCam Created.~n~~y~Exit freecam~w~.", 2000);
                    JoshCam.IsActive = true;

                    Function.Call(Hash.SET_ENTITY_MOTION_BLUR, Game.Player.Character.CurrentVehicle, true);
                }
                else
                {
                    UI.ShowSubtitle("~r~You need a vehicle for this to work.");
                }
            }
            else
            {
                if (TestCam.Exists() && World.RenderingCamera!= TestCam)
                {
                    World.RenderingCamera = From;

                    From.Position = GameplayCamera.Position;
                    From.Rotation = GameplayCamera.Rotation;
                    From.MotionBlurStrength = 50f;
                    TestCam.MotionBlurStrength = 50f;
                    Function.Call(Hash.SET_CAM_ACTIVE_WITH_INTERP, TestCam, From, 2000, 1, 1);

                }
                else if (TestCam.Exists() && World.RenderingCamera == TestCam)
                {
                    TestCam.Destroy();
                    TestCam = null;
                    From.Destroy();
                    UI.ShowSubtitle("~y~Blur Cam destroyed.",1000);
                    Function.Call(Hash.SET_ENTITY_MOTION_BLUR, Game.Player.Character.CurrentVehicle, false);
                }
            }
        }
    }


    bool CanWeUse(Entity entity)
    {
        return entity != null && entity.Exists();
    }

    void DisplayHelpTextThisFrame(string text)
    {
        Function.Call(Hash._SET_TEXT_COMPONENT_FORMAT, "STRING");
        Function.Call(Hash._ADD_TEXT_COMPONENT_STRING, text);
        Function.Call(Hash._DISPLAY_HELP_TEXT_FROM_STRING_LABEL, 0, false, true, -1);
    }
}