MouseTouchManager.Update C# (CSharp) Method

    private void Update()
    {
        // Clear some memory
        m_HandlerHits.Clear();

        // Raycast
        Vector3 mouseScreenPosition = Input.mousePosition;
        Vector3 mouseWorldPosition = m_Camera.ScreenToWorldPoint(mouseScreenPosition);
        Ray ray = m_Camera.ScreenPointToRay(mouseScreenPosition);
        RaycastHit[] hits = Physics.RaycastAll(ray);

        // Loop through the hits
        foreach (RaycastHit hit in hits.OrderBy(h => h.distance))
        {
            // Check if it matches any of the touch handlers
            foreach (TouchHandler handler in m_Handlers)
            {
                if (hit.collider.gameObject == handler.Owner)
                {
                    m_HandlerHits.Add(handler);
                }
            }
        }

        foreach (TouchRawType rawType in Enum.GetValues(typeof(TouchRawType)))
        {
            TouchEvent touchEvent = new TouchEvent(mouseScreenPosition, mouseWorldPosition, rawType);

            // On touch down
            if (Input.GetMouseButtonDown((int)rawType))
            {
                foreach (TouchHandler handler in m_HandlerHits)
                {
                    handler.OnTouchDown(touchEvent);
                    if (handler.KeepTouches)
                    {
                        break;
                    }
                }
            }

            if (Input.GetMouseButton((int)rawType))
            {
                // On touch drag
                foreach (TouchHandler handler in m_Handlers)
                {
                    if (handler.HasClaimedTouch(rawType))
                    {
                        handler.OnTouchDrag(touchEvent);
                    }
                }
            }

            if (Input.GetMouseButtonUp((int)rawType))
            {
                // On touch up
                foreach (TouchHandler handler in m_Handlers)
                {
                    if (handler.HasClaimedTouch(rawType))
                    {
                        handler.OnTouchUp(touchEvent);
                    }
                }
            }
        }
    }