isOnBranchSide()

private bool isOnBranchSide()
    {
        float lessenHeight = 0.5f;
        Vector3 front = new Vector3(polygonCollider2D.bounds.min.x + 1, polygonCollider2D.bounds.center.y, 0);
        Vector3 back = new Vector3(polygonCollider2D.bounds.max.x - 1, polygonCollider2D.bounds.center.y, 0);

        //start ray                  //direction   //length (1/2 the height of the character)        //check against this layer
        //RaycastHit2D raycastHit4 = Physics2D.Raycast(polygonCollider2D.bounds.center, -Vector2.up, polygonCollider2D.bounds.extents.y + extraHeight, branchLayerMask);
        RaycastHit2D raycastHit5 = Physics2D.Raycast(front, -Vector2.up, polygonCollider2D.bounds.extents.y, branchLayerMask);
        RaycastHit2D raycastHit6 = Physics2D.Raycast(back, -Vector2.up, polygonCollider2D.bounds.extents.y, branchLayerMask);

        Color rayColor;

        if (raycastHit5.collider != null || raycastHit6.collider != null)
        {
            rayColor = Color.green;
        }
        else
        {
            rayColor = Color.yellow;
        }
        //draw ray on screen when Gizmos enabled
        //Debug.DrawRay(polygonCollider2D.bounds.center, -Vector2.up * (polygonCollider2D.bounds.extents.y + extraHeight), rayColor);
        Debug.DrawRay(front, -Vector2.up * (polygonCollider2D.bounds.extents.y - lessenHeight), rayColor);
        Debug.DrawRay(back, -Vector2.up * (polygonCollider2D.bounds.extents.y - lessenHeight), rayColor);
        //return raycastHit4.collider != null;
        if (raycastHit5.collider != null)
        {
            return raycastHit5.collider != null;
        }
        else if (raycastHit6.collider != null)
        {
            return raycastHit6.collider != null;
        }
        else
        {
            return raycastHit5.collider != null;
        }

    }