public void AddEdge(int beginId, int endId)
{
Edge newEdge = Instantiate(prefabEdge, Vector3.zero, Quaternion.identity, transform);
Node begin = nodes.Find(node => node.Id == beginId);
Node end = nodes.Find(node => node.Id == endId);
EdgeTag tag = Instantiate(prefabEdgeTag, Vector3.zero, Quaternion.identity, canvas);
tag.Initialize(newEdge);
newEdge.Initialize(this, edgeIdCount, begin, end, tag);
newEdge.BeginPosition = new Vector3(begin.transform.position.x, begin.transform.position.y, 1);
newEdge.EndPosition = new Vector3(end.transform.position.x, end.transform.position.y, 1);
edges.Add(newEdge);
edgeIdCount++;
}
