tk2dEditor.Triangulator.Area C# (CSharp) Method

        private float Area()
        {
            int n = m_points.Count;
            float A = 0.0f;
            for (int p = n - 1, q = 0; q < n; p = q++)
            {
                Vector2 pval = m_points[p];
                Vector2 qval = m_points[q];
                A += pval.x * qval.y - qval.x * pval.y;
            }
            return (A * 0.5f);
        }