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Fix for null pointer exception #255

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Fix for null pointer exception #255

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8 changes: 6 additions & 2 deletions src/org/andengine/util/algorithm/path/astar/AStarPathFinder.java
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,10 @@ public Path findPath(final IPathFinderMap<T> pPathFinderMap, final int pXMin, fi
while (openNodes.size() > 0) {
/* The first Node in the open list is the one with the lowest cost. */
currentNode = sortedOpenNodes.poll();
if (currentNode == null) {
break;
}

final long currentNodeID = currentNode.mID;
if (currentNodeID == toNodeID) {
break;
Expand Down Expand Up @@ -151,7 +155,7 @@ public Path findPath(final IPathFinderMap<T> pPathFinderMap, final int pXMin, fi
sortedOpenNodes.clear();

/* Check if a path was found. */
if (currentNode.mID != toNodeID) {
if (currentNode == null || currentNode.mID != toNodeID) {
return null;
}

Expand Down Expand Up @@ -275,4 +279,4 @@ public boolean equals(final Node pNode) {
// Inner and Anonymous Classes
// ===========================================================
}
}
}