#include "OgreOcclusionCullingDotSceneManager.h"
#include "OgreMath.h"
#include "OgreIteratorWrappers.h"
#include "OgreRenderSystem.h"
#include "OgreCamera.h"
#include "OgreHardwareOcclusionQuery.h"
//#include "OgreWireBoundingBox.h"
#include "OgreSolidHalfBoundingBox.h"

//#include <windows.h>

namespace Ogre {
	//-----------------------------------------------------------------------
	OcclusionCullingDotSceneManager::OcclusionCullingDotSceneManager()
	{
		mOcclusionCullingSceneTraverser = new OcclusionCullingSceneTraverser(this, mDestRenderSystem);
		//mDisplayNodes = true;
		mShowBoundingBoxes = true;
		//mShowBoxes = true;
	}
	//-----------------------------------------------------------------------
	OcclusionCullingDotSceneManager::~OcclusionCullingDotSceneManager()
	{
		delete mOcclusionCullingSceneTraverser;
	}
	//-----------------------------------------------------------------------
	void OcclusionCullingDotSceneManager::_renderVisibleObjects(void)
	{
		//-- render background
		clearSpecialCaseRenderQueues();
		addSpecialCaseRenderQueue(RENDER_QUEUE_BACKGROUND);
		addSpecialCaseRenderQueue(RENDER_QUEUE_SKIES_EARLY);
	
		setSpecialCaseRenderQueueMode(SceneManager::SCRQM_INCLUDE);
		DotSceneManager::_renderVisibleObjects( );
		_deleteRenderedQueueGroups();

		//-- render visible objects (i.e., all but overlay)
		clearSpecialCaseRenderQueues();
		addSpecialCaseRenderQueue(RENDER_QUEUE_OVERLAY);
		setSpecialCaseRenderQueueMode(SceneManager::SCRQM_EXCLUDE);

		mOcclusionCullingSceneTraverser->renderScene(mCameraInProgress, mSceneRoot);
		_deleteRenderedQueueGroups();

		//-- render overlay
		clearSpecialCaseRenderQueues();
		DotSceneManager::_renderVisibleObjects( );
	
		clearSpecialCaseRenderQueues();
	}
	//-----------------------------------------------------------------------
	void OcclusionCullingDotSceneManager::_findVisibleObjects(Camera* cam, bool onlyShadowCasters)
	{
		// must be empty because objects are found and rendered in an interleaved fashion
		// in _renderVisibibleObjects 
	}
	//-----------------------------------------------------------------------
	void OcclusionCullingDotSceneManager::_updateSceneGraph(Camera* cam)
	{
		mOcclusionCullingSceneTraverser->setNumSceneNodes(mSceneNodes.size());
		mOcclusionCullingSceneTraverser->setRenderSystem(mDestRenderSystem);

        mOcclusionCullingSceneTraverser->preprocess();
		
		DotSceneManager::_updateSceneGraph(cam);
	}
	//-----------------------------------------------------------------------
	bool OcclusionCullingDotSceneManager::setOption( const String & key, const void * val )
	{
		return mOcclusionCullingSceneTraverser->setOption( key, val) || DotSceneManager::setOption( key, val );
	}
	//-----------------------------------------------------------------------
	bool OcclusionCullingDotSceneManager::getOption( const String & key, void *val )
	{
		return mOcclusionCullingSceneTraverser->getOption( key, val) || DotSceneManager::getOption( key, val ) ;
	}
	//-----------------------------------------------------------------------
	bool OcclusionCullingDotSceneManager::getOptionValues( const String & key, StringVector  &refValueList )
	{
		return DotSceneManager::getOptionValues( key, refValueList );
	}
	//-----------------------------------------------------------------------
	bool OcclusionCullingDotSceneManager::getOptionKeys( StringVector & refKeys )
	{
		return mOcclusionCullingSceneTraverser->getOptionKeys ( refKeys ) || DotSceneManager::getOptionKeys( refKeys );
	}
	
}