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fix(astar): compareto using sign for better precision

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This commit is contained in:
Paul Alnet 2024-05-03 15:09:28 +02:00
parent f77aea0371
commit df55fb1472
1 changed files with 3 additions and 9 deletions
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12
be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java
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@ -40,14 +40,8 @@ public class Label implements Comparable<Label> {
public int compareTo(Label other) {
final float difference = this.getTotalCost() - other.getTotalCost();
final boolean equal = Math.abs(difference) < 1.0;
if (equal) {
return 0;
//TODO
}
// TODO ensure this works properly
// return (int)(this.pathCost - other.pathCost);
return this.pathCost - other.pathCost < 0 ? -1 : 1;
return (int) Math.signum(difference);
// Note that doesn't address the requested condition regarding equality :
// "En cas d'égalité, on considèrera en premier le sommet ayant le plus petit coût estimé à la destination."
}
}