BoundingSphere::BoundingSphere(ObjMesh* mesh, char name[]){
    float mx = 0.0;
    float my = 0.0;
    float mz = 0.0;
    float mr = 0.0;
    this->r = 0.0;
    int vertices = mesh->m_iNumberOfVertices;
    for (int vi = 0; vi < vertices; vi++){
        mx += mesh->m_aVertexArray[vi].x;
        my += mesh->m_aVertexArray[vi].y;
        mz += mesh->m_aVertexArray[vi].z;
    }
    mx = mx / vertices;
    my = my / vertices;
    mz = mz / vertices;

    for (int vi = 0; vi < vertices; vi++){
        mr = sqrt(pow((mx - mesh->m_aVertexArray[vi].x), 2) + pow((my - mesh->m_aVertexArray[vi].y), 2) + pow((mz - mesh->m_aVertexArray[vi].z), 2));
        if (mr > this->r){
            this->r = mr;
        }
    }
    this->iPos.x = mx;
    this->iPos.y = my;
    this->iPos.z = mz;
    strcpy(this->name, name);
}