void Game::GetCircle(Vertex v1, Vertex v2, Vertex v3, int &outx, int &outy, int &outr)
{   
	float eps = 1.192092896e-07F;

	Vertex m_Center;

    float x0 = v1.x;   
    float y0 = v1.y;   
   
    float x1 = v2.x;   
    float y1 = v2.y;   
   
    float x2 = v3.x;   
    float y2 = v3.y;   
   
    float y10 = y1 - y0;   
    float y21 = y2 - y1;   
   
    bool b21zero = y21 > -eps && y21 < eps;   
   
    if (y10 > -eps && y10 < eps)   
    {   
        if (b21zero)    // All three vertices are on one horizontal line.   
        {   
            if (x1 > x0)   
            {   
                if (x2 > x1) x1 = x2;   
            }   
            else   
            {   
                if (x2 < x0) x0 = x2;   
            }   
            m_Center.x = (x0 + x1) * .5F;   
            m_Center.y = y0;   
        }   
        else    // m_Vertices[0] and m_Vertices[1] are on one horizontal line.   
        {   
            float m1 = - (x2 - x1) / y21;   
   
            float mx1 = (x1 + x2) * .5F;   
            float my1 = (y1 + y2) * .5F;   
   
            m_Center.x = (x0 + x1) * .5F;   
            m_Center.y = m1 * (m_Center.x - mx1) + my1;   
        }   
    }   
    else if (b21zero)   // m_Vertices[1] and m_Vertices[2] are on one horizontal line.   
    {   
        float m0 = - (x1 - x0) / y10;   
   
        float mx0 = (x0 + x1) * .5F;   
        float my0 = (y0 + y1) * .5F;   
   
        m_Center.x = (x1 + x2) * .5F;   
        m_Center.y = m0 * (m_Center.x - mx0) + my0;   
    }   
    else    // 'Common' cases, no multiple vertices are on one horizontal line.   
    {   
        float m0 = - (x1 - x0) / y10;   
        float m1 = - (x2 - x1) / y21;   
   
        float mx0 = (x0 + x1) * .5F;   
        float my0 = (y0 + y1) * .5F;   
   
        float mx1 = (x1 + x2) * .5F;   
        float my1 = (y1 + y2) * .5F;   
   
        m_Center.x = (m0 * mx0 - m1 * mx1 + my1 - my0) / (m0 - m1);   
        m_Center.y = m0 * (m_Center.x - mx0) + my0;   
    }   
   
    float dx = x0 - m_Center.x;   
    float dy = y0 - m_Center.y;   
   
    float m_R = (float) sqrt(dx * dx + dy * dy);    // the proper radius   

	outx = m_Center.x;
	outy = m_Center.y;
	outr = m_R;

}