Unity 2018 Artificial Intelligence Cookbook - Second Edition

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This time, we will need to implement a different BuildPath function, in case you have followed along with the previous path-finding recipes. Otherwise, we will need to implement this method, which we haven't defined yet:

private List<Vertex> BuildPath(Vertex v) 
{ 
    List<Vertex> path = new List<Vertex>(); 
    while (!ReferenceEquals(v, null)) 
    { 
        path.Add(v); 
        v = v.prev; 
    } 
    return path; 
}