delete_selected_vertex.cpp

void Mesh::delete_selected_vertex()
{
	if (!verts[vertex_selected].is_deletable())
		return;
	
	vector<int> new_face_vertex;
	vector<Face*> deleted_faces;
 
	for (int i = 0; i < groups.size(); i++)
	{
		Group* g = groups[i];
 
		for (int j = g->getFaces().size() - 1; j >= 0; j--)
		{
			Face* f = g->getFaces()[j];
 
			if (f->has_vertex(vertex_selected)){
				g->eraseFaceAt(j);
				deleted_faces.push_back(f);
			}
		}
	}
 
	verts.erase(verts.begin() + vertex_selected);
	
	// ----------------------------------------------------------------------------
	// map<int, bool> a;
	bool initialized = false;
	for(int x = 0; x <  deleted_faces.size(); ++x){
		Face* f = deleted_faces[x];
		vector<int> v=f->getVerts();
		vector<int>::iterator it0 = find(new_face_vertex.begin(), new_face_vertex.end(), v[0]);
		vector<int>::iterator it1 = find(new_face_vertex.begin(), new_face_vertex.end(), v[1]);
		if(it0 == new_face_vertex.end()){
			if(it1 == new_face_vertex.end()){
				if(!initialized){
					initialized = true;
					new_face_vertex.push_back(v[0]);
					// a[v[0]] = true;
					new_face_vertex.push_back(v[1]);
					cout<<"v[0]: "<<v[0]<<endl;
					cout<<"v[1]: "<<v[1]<<endl;
				}else{
					deleted_faces.erase(deleted_faces.begin() + x);
					--x;
					deleted_faces.push_back(f);
				}
			}else{
				// if(!a[v[1]]){
				if(it1 == new_face_vertex.begin()){
					// a[v[1]] = true;
					++it1;
				}
				new_face_vertex.insert(it1, v[0]);
				cout<<"v[1]->v[0]: "<<v[1]<<" -> "<<v[0]<<endl;
			}
		}else{
				if(it0 == new_face_vertex.begin()){
				// if(!a[v[0]]){
					// a[v[0]] = true;
					++it0;
				}
			if(it1 == new_face_vertex.end()){
				new_face_vertex.insert(it0, v[1]);
				cout<<"v[0]->v[1]: "<<v[0]<<" -> "<<v[1]<<endl;
			}
		}
	}
	
	// ----------------------------------------------------------------------------
	
	Face* new_face = new Face();
	cout<<"vertexes"<<endl;
	for(int t : new_face_vertex){
		new_face->addVert(t);
		cout<<t<<endl;
	}
		
	groups.back()->addFace(new_face);
}