Fix for a crash in path queue. Bail out if cannot init obstacle query.

DetourCrowd/Source/DetourCrowd.cpp

@@ -217,6 +217,7 @@ void dtCrowd::purge()
 	
 	dtFree(m_moveRequests);
 	m_moveRequests = 0;
+	m_moveRequestCount = 0;
 	
 	dtFreeProximityGrid(m_grid);
 	m_grid = 0;
@@ -246,7 +247,8 @@ bool dtCrowd::init(const int maxAgents, const float maxAgentRadius, dtNavMesh* n
 	m_obstacleQuery = dtAllocObstacleAvoidanceQuery();
 	if (!m_obstacleQuery)
 		return false;
-	m_obstacleQuery->init(6, 8);
+	if (!m_obstacleQuery->init(6, 8))
+		return false;
 	
 	m_obstacleQuery->setDesiredVelocityWeight(2.0f);
 	m_obstacleQuery->setCurrentVelocityWeight(0.75f);

DetourCrowd/Source/DetourPathQueue.cpp

@@ -30,6 +30,8 @@ dtPathQueue::dtPathQueue() :
 	m_queueHead(0),
 	m_navquery(0)
 {
+	for (int i = 0; i < MAX_QUEUE; ++i)
+		m_queue[i].path = 0;
 }
 
 dtPathQueue::~dtPathQueue()