Thanks for al the help! 
but i find a problem, the asociation:
endNode = node;
gives me an error, ususally, endNode = endNNInfo.node; but in those cases, i don’t have the
NNInfo endNNInfo = AstarPath.active.GetNearest(endPoint, nnConstraint, endHint);
declared so i can use node as a varaible… any suggestions to solve it?