RayBox Test

gistfile1.txt

  private void Update()
    {
        Vector2 startCursorPosition = Vector2.zero;

        if (Input.GetMouseButtonDown(0))
        {
            startCursorPosition = new Vector2(Input.mousePosition.x, Input.mousePosition.y);
        }
        if (Input.GetMouseButton(0))
        {
            if (startCursorPosition != Vector2.zero)
            {
                Vector2 currentCursorPosition = new Vector2(Input.mousePosition.x, Input.mousePosition.y);
                Collider2D[] rays = Physics2D.OverlapBoxAll(startCursorPosition, currentCursorPosition, 0);
                Debug.DrawRay(new Vector3(startCursorPosition.x, startCursorPosition.y, 0), new Vector3(currentCursorPosition.x, currentCursorPosition.y, 0), Color.red);
            }
        }
    }