Anvilcraft/equivalent-exchange-3
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Forgot to check to make sure that a weighted directed edge doesn't already exist between two nodes when attempting to add an edge

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pahimar 2013-05-30 15:42:41 -04:00
parent 6c8d0449ab
commit 603a88bb1c
1 changed files with 4 additions and 1 deletions
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5
ee3_common/com/pahimar/ee3/emc/graph/WeightedDirectedGraph.java
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@ -47,7 +47,10 @@ public class WeightedDirectedGraph<T> implements Iterable<T> {
throw new NoSuchElementException("Missing nodes from graph");
}
graph.get(from).add(new WeightedEdge<T>(weight, to));
// If a directed edge of the same weight doesn't already exist, add the new edge
if (!edgeExists(from, to, weight)) {
graph.get(from).add(new WeightedEdge<T>(weight, to));
}
}
public boolean edgeExists(T from, T to) {