Test virutal cursor for unity (2019.1)

MyStandaloneInputModule.cs

using UnityEngine;
using UnityEngine.EventSystems;

public class MyStandaloneInputModule : StandaloneInputModule
{
    public RectTransform m_VirtualCursor;

    private Vector2 m_LastMousePosition;
    private Vector2 m_MousePosition;

    public override void UpdateModule()
    {
        m_LastMousePosition = m_MousePosition;
        m_MousePosition = m_VirtualCursor.anchoredPosition;
    }

    public override bool ShouldActivateModule()
    {
        var result = base.ShouldActivateModule();
        if (result)
            return true;


        return (m_MousePosition - m_LastMousePosition).sqrMagnitude > 0.0f;
    }

    public override void ActivateModule()
    {
        base.ActivateModule();

        m_MousePosition = m_VirtualCursor.anchoredPosition;
        m_LastMousePosition = m_VirtualCursor.anchoredPosition;
    }

    private readonly MouseState m_MouseState = new MouseState();
    private PointerEventData leftData;

    protected override MouseState GetMousePointerEventData(int id)
    {
        // Populate the left button...

        var created = GetPointerData(kMouseLeftId, out leftData, true);

        leftData.Reset();

        if (created)
            leftData.position = m_VirtualCursor.anchoredPosition;

        var pos = m_VirtualCursor.anchoredPosition;
        leftData.delta = pos - leftData.position;
        leftData.position = pos;
        leftData.scrollDelta = Input.mouseScrollDelta;
        leftData.button = PointerEventData.InputButton.Left;
        eventSystem.RaycastAll(leftData, m_RaycastResultCache);

        var raycast = FindFirstRaycast(m_RaycastResultCache);
        leftData.pointerCurrentRaycast = raycast;
        m_RaycastResultCache.Clear();

        // copy the apropriate data into right and middle slots
        PointerEventData rightData;
        GetPointerData(kMouseRightId, out rightData, true);
        CopyFromTo(leftData, rightData);
        rightData.button = PointerEventData.InputButton.Right;

        PointerEventData middleData;
        GetPointerData(kMouseMiddleId, out middleData, true);
        CopyFromTo(leftData, middleData);
        middleData.button = PointerEventData.InputButton.Middle;

        m_MouseState.SetButtonState(PointerEventData.InputButton.Left, StateForMouseButton(0), leftData);
        m_MouseState.SetButtonState(PointerEventData.InputButton.Right, StateForMouseButton(1), rightData);
        m_MouseState.SetButtonState(PointerEventData.InputButton.Middle, StateForMouseButton(2), middleData);

        return m_MouseState;
    }
}

VirtualCursor.cs

using UnityEngine;

public class VirtualCursor : MonoBehaviour
{
    public Vector3 offset;
    
    private void Update()
    {
        transform.position = Input.mousePosition + offset;
    }
}