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139 lines
5.0 KiB
C++
139 lines
5.0 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: Clones a physics object by use of shadows
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef PHYSICSSHADOWCLONE_H
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#define PHYSICSSHADOWCLONE_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "vphysics_interface.h"
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#include "baseentity.h"
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#include "baseanimating.h"
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class CPhysicsShadowClone;
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struct PhysicsObjectCloneLink_t
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{
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IPhysicsObject *pSource;
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IPhysicsShadowController *pShadowController;
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IPhysicsObject *pClone;
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};
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struct CPhysicsShadowCloneLL
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{
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CPhysicsShadowClone *pClone;
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CPhysicsShadowCloneLL *pNext;
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};
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#define FVPHYSICS_IS_SHADOWCLONE 0x4000
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class CPhysicsShadowClone : public CBaseAnimating
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{
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DECLARE_CLASS( CPhysicsShadowClone, CBaseAnimating );
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private:
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EHANDLE m_hClonedEntity; //the entity we're supposed to be cloning the physics of
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VMatrix m_matrixShadowTransform; //all cloned coordinates and angles will be run through this matrix before being applied
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VMatrix m_matrixShadowTransform_Inverse;
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CUtlVector<PhysicsObjectCloneLink_t> m_CloneLinks; //keeps track of which of our physics objects are linked to the source's objects
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bool m_bShadowTransformIsIdentity; //the shadow transform doesn't update often, so we can cache this
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bool m_bImmovable; //cloning a track train or door, something that doesn't really work on a force-based level
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bool m_bInAssumedSyncState;
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void FullSyncClonedPhysicsObjects( bool bTeleport );
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void SyncEntity( bool bPullChanges );
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IPhysicsEnvironment *m_pOwnerPhysEnvironment; //clones exist because of multi-environment situations
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public:
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CPhysicsShadowClone( void );
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virtual ~CPhysicsShadowClone( void );
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bool m_bShouldUpSync;
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DBG_CODE_NOSCOPE( const char *m_szDebugMarker; );
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//do the thing with the stuff, you know, the one that goes WooooWooooWooooWooooWoooo
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virtual void Spawn( void );
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//crush, kill, DESTROY!!!!!
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void Free( void );
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//syncs to the source entity in every way possible, assumed sync does some rudimentary tests to see if the object is in sync, and if so, skips the update
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void FullSync( bool bAllowAssumedSync = false );
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//syncs just the physics objects, bPullChanges should be true when this clone should match it's source, false when it should force differences onto the source entity
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void PartialSync( bool bPullChanges );
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//virtual bool CreateVPhysics( void );
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virtual void VPhysicsDestroyObject( void );
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virtual int VPhysicsGetObjectList( IPhysicsObject **pList, int listMax );
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virtual int ObjectCaps( void );
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virtual void UpdateOnRemove( void );
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//routing to the source entity for cloning goodness
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virtual bool ShouldCollide( int collisionGroup, int contentsMask ) const;
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//avoid blocking traces that are supposed to hit our source entity
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virtual bool TestCollision( const Ray_t &ray, unsigned int fContentsMask, trace_t& tr );
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//is this clone occupying the exact same space as the object it's cloning?
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inline bool IsUntransformedClone( void ) const { return m_bShadowTransformIsIdentity; };
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void SetCloneTransformationMatrix( const matrix3x4_t &matTransform );
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inline bool IsInAssumedSyncState( void ) const { return m_bInAssumedSyncState; }
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inline IPhysicsEnvironment *GetOwnerEnvironment( void ) const { return m_pOwnerPhysEnvironment; }
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//what entity are we cloning?
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void SetClonedEntity( EHANDLE hEntToClone );
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EHANDLE GetClonedEntity( void );
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virtual void VPhysicsCollision( int index, gamevcollisionevent_t *pEvent );
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//damage relays to source entity if anything ever hits the clone
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virtual bool PassesDamageFilter( const CTakeDamageInfo &info );
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virtual bool CanBeHitByMeleeAttack( CBaseEntity *pAttacker );
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virtual int OnTakeDamage( const CTakeDamageInfo &info );
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virtual int TakeHealth( float flHealth, int bitsDamageType );
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virtual void Event_Killed( const CTakeDamageInfo &info );
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static CPhysicsShadowClone *CreateShadowClone( IPhysicsEnvironment *pInPhysicsEnvironment, EHANDLE hEntToClone, const char *szDebugMarker, const matrix3x4_t *pTransformationMatrix = NULL );
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//given a physics object that is part of this clone, tells you which physics object in the source
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IPhysicsObject *TranslatePhysicsToClonedEnt( const IPhysicsObject *pPhysics );
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static bool IsShadowClone( const CBaseEntity *pEntity );
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static CPhysicsShadowCloneLL *GetClonesOfEntity( const CBaseEntity *pEntity );
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static void FullSyncAllClones( void );
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static CUtlVector<CPhysicsShadowClone *> const &g_ShadowCloneList;
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};
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class CTraceFilterTranslateClones : public CTraceFilter //give it another filter, and it'll translate shadow clones into their source entity for tests
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{
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ITraceFilter *m_pActualFilter; //the filter that tests should be forwarded to after translating clones
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public:
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CTraceFilterTranslateClones( ITraceFilter *pOtherFilter ) : m_pActualFilter(pOtherFilter) {};
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virtual bool ShouldHitEntity( IHandleEntity *pEntity, int contentsMask );
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virtual TraceType_t GetTraceType() const;
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};
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#endif //#ifndef PHYSICSSHADOWCLONE_H
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