hkpSuspendInactiveAgentsUtil.h
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上传日期:2020-08-09
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其他游戏
开发平台:
Visual C++
- /*
- *
- * Confidential Information of Telekinesys Research Limited (t/a Havok). Not for disclosure or distribution without Havok's
- * prior written consent. This software contains code, techniques and know-how which is confidential and proprietary to Havok.
- * Level 2 and Level 3 source code contains trade secrets of Havok. Havok Software (C) Copyright 1999-2009 Telekinesys Research Limited t/a Havok. All Rights Reserved. Use of this software is subject to the terms of an end user license agreement.
- *
- */
- #ifndef HK_UTILITIES2_SUSPEND_INACTIVE_AGENTS_H
- #define HK_UTILITIES2_SUSPEND_INACTIVE_AGENTS_H
- #include <Common/Base/hkBase.h>
- #include <Physics/Dynamics/World/Listener/hkpIslandActivationListener.h>
- #include <Physics/Dynamics/World/Listener/hkpWorldDeletionListener.h>
- /// A class which tries to free collision cache memory for inactive islands
- /// Note: this class works because of the current implementation of hkpBvTreeStreamAgent::updateShapeCollectionFilter
- class hkpSuspendInactiveAgentsUtil : public hkReferencedObject, hkpIslandActivationListener, hkpWorldDeletionListener
- {
- public:
- enum OperationMode
- {
- /// Remove all collision agents which are a subagent of the bvtreestream agent.
- /// Typically this are the agents between moving bodies and the triangles of the
- /// landscape. Note: This type of agents account for most collision agent memory in most games.
- /// Using this mode you will see small artifacts when objects wake
- SUSPEND_1N_AGENT_TRACKS,
- /// Removes all child agents for shape collections. This performs another explicit call to updateCollisionFilter on collections
- /// when the island is activated.
- /// Note:This call is not safe if that update call would remove agents, or in multithreaded simulation.
- SUSPEND_ALL_COLLECTION_AGENTS,
- };
- /// This deterimines how contacts are found when an island activates
- enum InitContactsMode
- {
- /// This is the default. When an island activates, it does extra work to try to find more contact points between colliding
- /// pairs whose agents were deleted.
- INIT_CONTACTS_FIND,
- /// This setting disables the extra work on activation. It is faster, but may result in some extra initial jitter as objects
- /// activate.
- INIT_CONTACTS_DO_NOT_FIND
- };
- //
- // Public functions.
- //
- /// Constructor takes a pointer to an hkpWorld and a flag indicating
- /// how aggressively you want to remove agents.
- /// It automatically adds itself to the world and increases its own reference count.
- /// When the world is deleted, it decreases its own reference count.
- hkpSuspendInactiveAgentsUtil(hkpWorld* world, OperationMode mode = SUSPEND_1N_AGENT_TRACKS, InitContactsMode initContactsMode = INIT_CONTACTS_FIND );
- ~hkpSuspendInactiveAgentsUtil();
- public:
- /// Called when an island is activated. Simply does nothing.
- /// ###ACCESS_CHECKS###( [island->getWorld(),HK_ACCESS_RW] );
- virtual void islandActivatedCallback( hkpSimulationIsland* island );
- /// Called when an island is deactivated
- /// ###ACCESS_CHECKS###( [island->getWorld(),HK_ACCESS_RW] );
- virtual void islandDeactivatedCallback( hkpSimulationIsland* island );
- /// Called when the hkpWorld is deleted.
- virtual void worldDeletedCallback( hkpWorld* world);
- public:
- hkpWorld* m_world;
- OperationMode m_mode;
- InitContactsMode m_initContactsMode;
- };
- #endif // HK_UTILITIES2_SUSPEND_INACTIVE_AGENTS_H
- /*
- * Havok SDK - NO SOURCE PC DOWNLOAD, BUILD(#20090216)
- *
- * Confidential Information of Havok. (C) Copyright 1999-2009
- * Telekinesys Research Limited t/a Havok. All Rights Reserved. The Havok
- * Logo, and the Havok buzzsaw logo are trademarks of Havok. Title, ownership
- * rights, and intellectual property rights in the Havok software remain in
- * Havok and/or its suppliers.
- *
- * Use of this software for evaluation purposes is subject to and indicates
- * acceptance of the End User licence Agreement for this product. A copy of
- * the license is included with this software and is also available at www.havok.com/tryhavok.
- *
- */