#include "StopAndWaitTraverser.h"
#include "SceneEntity.h"


namespace CHCDemoEngine
{

using namespace std;



StopAndWaitTraverser::StopAndWaitTraverser()
{
}


void StopAndWaitTraverser::Traverse()
{
	while (!mDistanceQueue.empty())
	{
		BvhNode *node = mDistanceQueue.top();
		mDistanceQueue.pop();
	
		if (0 && !IsNodeGeometryVisible(node, 10))
		{
			node->SetVisible(false);
			continue;
		}

		if (mBvh->IsWithinViewFrustum(node))
		{
			// if intersects near plane assume visible and don't issue test
			if (mBvh->IntersectsNearPlane(node))
			{
				TraverseNode(node);
			}
			else
			{
				OcclusionQuery *query = IssueOcclusionQuery(node);

				const bool visible = (query->GetQueryResult() > mVisibilityThreshold);
			
				if (visible)
				{
					TraverseNode(node);
				}
				else
				{
					++ mStats.mNumQueryCulledNodes;
				}
			}
		}
		else
		{
			++ mStats.mNumFrustumCulledNodes;
		}	
	}
}

}