C++ CBaseEntity::AddEffects方法代码示例

//-----------------------------------------------------------------------------
// Purpose: Make the weapon visible and tangible
//-----------------------------------------------------------------------------
CBaseEntity* CBaseCombatWeapon::Respawn( void )
{
	// make a copy of this weapon that is invisible and inaccessible to players (no touch function). The weapon spawn/respawn code
	// will decide when to make the weapon visible and touchable.
	CBaseEntity *pNewWeapon = CBaseEntity::Create( GetClassname(), g_pGameRules->VecWeaponRespawnSpot( this ), GetLocalAngles(), GetOwnerEntity() );

	if ( pNewWeapon )
	{
		pNewWeapon->AddEffects( EF_NODRAW );// invisible for now
		pNewWeapon->SetTouch( NULL );// no touch
		pNewWeapon->SetThink( &CBaseCombatWeapon::AttemptToMaterialize );

		UTIL_DropToFloor( this, MASK_SOLID );

		// not a typo! We want to know when the weapon the player just picked up should respawn! This new entity we created is the replacement,
		// but when it should respawn is based on conditions belonging to the weapon that was taken.
		pNewWeapon->SetNextThink( gpGlobals->curtime + g_pGameRules->FlWeaponRespawnTime( this ) );
	}
	else
	{
		Warning("Respawn failed to create %s!\n", GetClassname() );
	}

	return pNewWeapon;
}

void CFuncAreaPortalWindow::Activate()
{
	BaseClass::Activate();
	
	// Find our background model.
	CBaseEntity *pBackground = gEntList.FindEntityByName( NULL, m_iBackgroundBModelName );
	if( pBackground )
	{
		m_iBackgroundModelIndex  = modelinfo->GetModelIndex( STRING( pBackground->GetModelName() ) );
		pBackground->AddEffects( EF_NODRAW ); // we will draw for it.
	}

	// Find our target and steal its bmodel.
	CBaseEntity *pTarget = gEntList.FindEntityByName( NULL, m_target );
	if( pTarget )
	{
		SetModel( STRING(pTarget->GetModelName()) );
		SetAbsOrigin( pTarget->GetAbsOrigin() );
		pTarget->AddEffects( EF_NODRAW ); // we will draw for it.
	}
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CAntlionGrub::SpawnSquashedGrub( void )
{
	// If we're already invisible, we're done
	if ( GetEffects() & EF_NODRAW )
		return;

	Vector vecUp;
	GetVectors( NULL, NULL, &vecUp );
	CBaseEntity *pGib = CreateRagGib( ANTLIONGRUB_SQUASHED_MODEL, GetAbsOrigin(), GetAbsAngles(), vecUp * 16.0f );
	if ( pGib )
	{
		pGib->AddEffects( EF_NOSHADOW );
	}
}

void Test_RandomizeInPVS( const CCommand &args )
{
	if ( args.ArgC() < 2 )
	{
		Error( "Test_RandomizeInPVS <percentage chance to change>" );
	}

	int percent = atoi( args[ 1 ] );
	for ( int i=0; i < g_StressEntities.Count(); i++ )
	{
		CBaseEntity *pEnt = g_StressEntities[i];

		if ( pEnt )
		{
			if ( RandomInt( 0, 100 ) < percent )
			{
				if ( pEnt->IsEffectActive( EF_NODRAW ) )
					pEnt->RemoveEffects( EF_NODRAW );
				else
					pEnt->AddEffects( EF_NODRAW );
			}
		}
	}
}

void Test_RandomizeInPVS()
{
	if ( engine->Cmd_Argc() < 2 )
	{
		Error( "Test_RandomizeInPVS <percentage chance to change>" );
	}

	int percent = atoi( engine->Cmd_Argv( 1 ) );
	for ( int i=0; i < g_StressEntities.Count(); i++ )
	{
		CBaseEntity *pEnt = g_StressEntities[i];

		if ( pEnt )
		{
			if ( RandomInt( 0, 100 ) < percent )
			{
				if ( pEnt->IsEffectActive( EF_NODRAW ) )
					pEnt->RemoveEffects( EF_NODRAW );
				else
					pEnt->AddEffects( EF_NODRAW );
			}
		}
	}
}

//.........这里部分代码省略.........

				VectorTransform( list[i].offset - placementOrigin, matrix, position );
			}
			Vector objectVelocity = params.velocity;

			if (pPhysics)
			{
				pPhysics->GetVelocityAtPoint( position, &objectVelocity );
			}

			int nActualSkin = nSkin;
			if ( nActualSkin > studioHdr.numskinfamilies() )
				nActualSkin = 0;

			CBaseEntity *pBreakable = NULL;
			
#ifdef GAME_DLL
			if ( GetGibManager() == NULL || GetGibManager()->AllowedToSpawnGib() )
#endif
			{
				pBreakable = BreakModelCreateSingle( pOwnerEntity, &list[i], position, angles, objectVelocity, params.angularVelocity, nActualSkin, params );
			}

			if ( pBreakable )
			{
#ifdef GAME_DLL
				if ( GetGibManager() )
				{
					GetGibManager()->AddGibToLRU( pBreakable->GetBaseAnimating() );
				}
#endif
				if ( pOwnerEntity && pOwnerEntity->IsEffectActive( EF_NOSHADOW ) )
				{
					pBreakable->AddEffects( EF_NOSHADOW );
				}

				// If burst scale is set, this piece should 'burst' away from
				// the origin in addition to travelling in the wished velocity.
				if ( list[i].burstScale != 0.0 )
				{
					Vector vecBurstDir = position - params.origin;

					// If $autocenter wasn't used, try the center of the piece
					if ( vecBurstDir == vec3_origin )
					{
						vecBurstDir = pBreakable->WorldSpaceCenter() - params.origin;
					}

					VectorNormalize( vecBurstDir );

					pBreakable->ApplyAbsVelocityImpulse( vecBurstDir * list[i].burstScale );
				}

				// If this piece is supposed to be motion disabled, disable it
				if ( list[i].isMotionDisabled )
				{
					IPhysicsObject *pPhysicsObject = pBreakable->VPhysicsGetObject();
					if ( pPhysicsObject != NULL )
					{
						pPhysicsObject->EnableMotion( false );
					}
				}
			}
		}
	}
	// Then see if the propdata specifies any breakable pieces

//.........这里部分代码省略.........
// player's PVS, but this could be opposite of what we 
// really want. We may only want to conduct the cleanup on
// weapons that are IN the player's PVS.
//---------------------------------------------------------
void CGameWeaponManager::Think()
{
	int i;

	// Don't have to think all that often. 
	SetNextThink( gpGlobals->curtime + 2.0 );

	const char *pszWeaponName = STRING( m_iszWeaponName );

	CUtlVector<CBaseEntity *> candidates( 0, 64 );

	if ( m_bExpectingWeapon )
	{
		CBaseCombatWeapon *pWeapon = NULL;
		// Firstly, count the total number of weapons of this type in the world.
		// Also count how many of those can potentially be removed.
		pWeapon = assert_cast<CBaseCombatWeapon *>(gEntList.FindEntityByClassname( pWeapon, pszWeaponName ));

		while( pWeapon )
		{
			if( !pWeapon->IsEffectActive( EF_NODRAW ) && pWeapon->IsRemoveable() )
			{
				candidates.AddToTail( pWeapon );
			}

			pWeapon = assert_cast<CBaseCombatWeapon *>(gEntList.FindEntityByClassname( pWeapon, pszWeaponName ));
		}
	}
	else
	{
		for ( i = 0; i < m_ManagedNonWeapons.Count(); i++)
		{
			CBaseEntity *pEntity = m_ManagedNonWeapons[i];
			if ( pEntity )
			{
				Assert( pEntity->m_iClassname == m_iszWeaponName );
				if ( !pEntity->IsEffectActive( EF_NODRAW ) )
				{
					candidates.AddToTail( pEntity );
				}
			}
			else
			{
				m_ManagedNonWeapons.FastRemove( i-- );
			}
		}
	}

	// Calculate the surplus.
	int surplus = candidates.Count() - m_iMaxPieces;

	// Based on what the player can see, try to clean up the world by removing weapons that
	// the player cannot see right at the moment.
	CBaseEntity *pCandidate;
	for ( i = 0; i < candidates.Count() && surplus > 0; i++ )
	{
		bool fRemovedOne = false;

		pCandidate = candidates[i];
		Assert( !pCandidate->IsEffectActive( EF_NODRAW ) );

//		if ( gpGlobals->maxClients == 1 )
		{
			CBasePlayer *pPlayer = UTIL_GetNearestVisiblePlayer(pCandidate);
			// Nodraw serves as a flag that this weapon is already being removed since
			// all we're really doing inside this loop is marking them for removal by
			// the entity system. We don't want to count the same weapon as removed
			// more than once.
			if( !UTIL_FindClientInPVS( pCandidate->edict() ) )
			{
				fRemovedOne = true;
			}
			else if( !pPlayer->FInViewCone( pCandidate ) )
			{
				fRemovedOne = true;
			}
			else if ( UTIL_DistApprox( pPlayer->GetAbsOrigin(), pCandidate->GetAbsOrigin() ) > (30*12) )
			{
				fRemovedOne = true;
			}
		}
//		else
//		{
//			fRemovedOne = true;
//		}

		if( fRemovedOne )
		{
			pCandidate->AddEffects( EF_NODRAW );
			UTIL_Remove( pCandidate );

			DevMsg( 2, "Surplus %s removed\n", pszWeaponName);
			surplus--;
		}
	}
}