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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  


#include "ScClothShape.h"
#if PX_USE_CLOTH_API

#include "ScNPhaseCore.h"
#include "ScScene.h"

#include "ScClothSim.h"
#include "PxsContext.h"
#include "BpSimpleAABBManager.h"
#include "ScSqBoundsManager.h"

using namespace physx;

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Sc::ClothShape::ClothShape(ClothSim& cloth) :
	ElementSim(cloth, ElementType::eCLOTH),
    mClothCore(cloth.getCore()),
	mHasCollision(mClothCore.getClothFlags() & PxClothFlag::eSCENE_COLLISION)
{
	if (mHasCollision)
		createLowLevelVolume();
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Sc::ClothShape::~ClothShape()
{
	if (isInBroadPhase())
		destroyLowLevelVolume();

	PX_ASSERT(!isInBroadPhase());
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void Sc::ClothShape::getFilterInfo(PxFilterObjectAttributes& filterAttr, PxFilterData& filterData) const
{
	filterAttr = 0;
	ElementSim::setFilterObjectAttributeType(filterAttr, PxFilterObjectType::eCLOTH);
	filterData = mClothCore.getSimulationFilterData();
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void Sc::ClothShape::updateBoundsInAABBMgr()
{
	if(~mClothCore.getClothFlags() & PxClothFlag::eSCENE_COLLISION)
	{
		if(mHasCollision)
		{
			destroyLowLevelVolume();
			mHasCollision = false;
		}
		return;
	}

	if(!mHasCollision)
	{
		createLowLevelVolume();
		mHasCollision = true;
	}

	Scene& scene = getScene();

	PxBounds3 worldBounds = mClothCore.getWorldBounds();
	worldBounds.fattenSafe(mClothCore.getContactOffset()); // fatten for fast moving colliders
    scene.getBoundsArray().setBounds(worldBounds, getElementID());
	scene.getAABBManager()->getChangedAABBMgActorHandleMap().growAndSet(getElementID());
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void Sc::ClothShape::createLowLevelVolume()
{
	PX_ASSERT(getWorldBounds().isFinite());
	getScene().getBoundsArray().setBounds(getWorldBounds(), getElementID());	
	addToAABBMgr(0, Bp::FilterGroup::eCLOTH_NO_PARTICLE_INTERACTION, false);
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void Sc::ClothShape::destroyLowLevelVolume()
{
	if (!isInBroadPhase())
		return;

	Sc::Scene& scene = getScene();
	PxsContactManagerOutputIterator outputs = scene.getLowLevelContext()->getNphaseImplementationContext()->getContactManagerOutputs();
	scene.getNPhaseCore()->onVolumeRemoved(this, 0, outputs, scene.getPublicFlags() & PxSceneFlag::eADAPTIVE_FORCE);
	removeFromAABBMgr();
}


#endif	// PX_USE_CLOTH_API