1 files changed, 344 insertions, 0 deletions
diff --git a/game/server/portal/func_liquidportal.cpp b/game/server/portal/func_liquidportal.cpp
new file mode 100644
index 0000000..e99043d
--- /dev/null
+++ b/game/server/portal/func_liquidportal.cpp
@@ -0,0 +1,344 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Rising liquid that acts as a one-way portal
+//
+// $NoKeywords: $
+//===========================================================================//
+
+#include "cbase.h"
+#include "func_liquidportal.h"
+#include "portal_player.h"
+#include "isaverestore.h"
+#include "saverestore_utlvector.h"
+
+LINK_ENTITY_TO_CLASS( func_liquidportal, CFunc_LiquidPortal );
+
+BEGIN_DATADESC( CFunc_LiquidPortal )
+	DEFINE_FIELD( m_hLinkedPortal, FIELD_EHANDLE ),
+	DEFINE_FIELD( m_bFillInProgress, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_fFillStartTime, FIELD_TIME ),
+	DEFINE_FIELD( m_fFillEndTime, FIELD_TIME ),
+	DEFINE_FIELD( m_matrixThisToLinked, FIELD_VMATRIX ),
+	DEFINE_UTLVECTOR( m_hTeleportList, FIELD_EHANDLE ),
+	DEFINE_UTLVECTOR( m_hLeftToTeleportThisFill, FIELD_EHANDLE ),
+
+	DEFINE_KEYFIELD( m_strInitialLinkedPortal, FIELD_STRING, "InitialLinkedPortal" ),
+	DEFINE_KEYFIELD( m_fFillTime, FIELD_FLOAT, "FillTime" ),
+
+	// Inputs
+	DEFINE_INPUTFUNC( FIELD_STRING, "SetLinkedLiquidPortal",	InputSetLinkedLiquidPortal ),
+	DEFINE_INPUTFUNC( FIELD_FLOAT, "SetFillTime",		InputSetFillTime ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "StartFilling",		InputStartFilling ),
+
+	DEFINE_INPUTFUNC( FIELD_VOID, "AddActivatorToTeleportList",		InputAddActivatorToTeleportList ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "RemoveActivatorFromTeleportList",		InputRemoveActivatorFromTeleportList ),
+
+	DEFINE_FUNCTION( CBaseEntity::Think ),
+END_DATADESC()
+
+
+IMPLEMENT_SERVERCLASS_ST( CFunc_LiquidPortal, DT_Func_LiquidPortal )
+	SendPropEHandle( SENDINFO(m_hLinkedPortal) ),
+	SendPropFloat( SENDINFO(m_fFillStartTime) ),
+	SendPropFloat( SENDINFO(m_fFillEndTime) ),
+END_SEND_TABLE()
+
+
+CFunc_LiquidPortal::CFunc_LiquidPortal( void )
+: m_bFillInProgress( false )
+{
+	m_matrixThisToLinked.Identity(); //Zero space is a bad place. No heroes to face, but we need 1's in this case.
+
+}
+
+void CFunc_LiquidPortal::Spawn( void )
+{
+	BaseClass::Spawn();
+
+	SetSolid( SOLID_VPHYSICS );
+	SetSolidFlags( FSOLID_NOT_SOLID );
+	SetMoveType( MOVETYPE_NONE );
+	SetModel( STRING( GetModelName() ) );
+
+	CBaseEntity *pBaseEnt = gEntList.FindEntityByName( NULL, STRING(m_strInitialLinkedPortal) );
+	Assert( (pBaseEnt == NULL) || (dynamic_cast<CFunc_LiquidPortal *>(pBaseEnt) != NULL) );
+	SetLinkedLiquidPortal( (CFunc_LiquidPortal *)pBaseEnt );
+	SetThink( &CFunc_LiquidPortal::Think );
+}
+
+void CFunc_LiquidPortal::Activate( void )
+{
+	BaseClass::Activate();
+
+	SetSolid( SOLID_VPHYSICS );
+	SetSolidFlags( FSOLID_NOT_SOLID );
+	SetMoveType( MOVETYPE_NONE );
+	SetModel( STRING( GetModelName() ) );
+
+	ComputeLinkMatrix(); //collision origin may have changed during activation
+
+	SetThink( &CFunc_LiquidPortal::Think );
+
+	for( int i = m_hLeftToTeleportThisFill.Count(); --i >= 0; )
+	{
+		CBaseEntity *pEnt = m_hLeftToTeleportThisFill[i].Get();
+
+		if( pEnt && pEnt->IsPlayer() )
+		{
+			((CPortal_Player *)pEnt)->m_hSurroundingLiquidPortal = this;
+		}
+	}
+}
+
+int	CFunc_LiquidPortal::Save( ISave &save )
+{
+	if( !BaseClass::Save( save ) )
+		return 0;
+
+	save.StartBlock( "LiquidPortal" );
+
+	short iTeleportListCount = m_hTeleportList.Count();
+	save.WriteShort( &iTeleportListCount );
+
+	if( iTeleportListCount != 0 )
+		save.WriteEHandle( m_hTeleportList.Base(), iTeleportListCount );
+
+	short iLeftToTeleportThisFillCount = m_hLeftToTeleportThisFill.Count();
+	save.WriteShort( &iLeftToTeleportThisFillCount );
+
+	if( iLeftToTeleportThisFillCount != 0 )
+		save.WriteEHandle( m_hLeftToTeleportThisFill.Base(), iLeftToTeleportThisFillCount );
+
+	save.EndBlock();
+	
+	return 1;
+}
+
+int	CFunc_LiquidPortal::Restore( IRestore &restore )
+{
+	m_hTeleportList.RemoveAll();
+	m_hLeftToTeleportThisFill.RemoveAll();
+
+	if( !BaseClass::Restore( restore ) )
+		return 0;
+
+	char szBlockName[SIZE_BLOCK_NAME_BUF];
+	restore.StartBlock( szBlockName );
+
+	if( !FStrEq( szBlockName, "LiquidPortal" ) ) //loading a save without liquid portal save data
+		return 1;
+
+	short iTeleportListCount;
+	restore.ReadShort( &iTeleportListCount );
+
+	if( iTeleportListCount != 0 )
+	{
+		m_hTeleportList.SetCount( iTeleportListCount );
+		restore.ReadEHandle( m_hTeleportList.Base(), iTeleportListCount );
+	}
+
+	short iLeftToTeleportThisFillCount;
+	restore.ReadShort( &iLeftToTeleportThisFillCount );
+
+	if( iLeftToTeleportThisFillCount != 0 )
+	{
+		m_hLeftToTeleportThisFill.SetCount( iLeftToTeleportThisFillCount );
+		restore.ReadEHandle( m_hLeftToTeleportThisFill.Base(), iLeftToTeleportThisFillCount );		
+	}
+
+	restore.EndBlock();
+
+	return 1;	
+}
+
+
+void CFunc_LiquidPortal::InputSetLinkedLiquidPortal( inputdata_t &inputdata )
+{
+	CBaseEntity *pBaseEnt = gEntList.FindEntityByName( NULL, inputdata.value.String() );
+	Assert( (pBaseEnt == NULL) || (dynamic_cast<CFunc_LiquidPortal *>(pBaseEnt) != NULL) );
+	SetLinkedLiquidPortal( (CFunc_LiquidPortal *)pBaseEnt );
+}
+
+void CFunc_LiquidPortal::InputSetFillTime( inputdata_t &inputdata )
+{
+	m_fFillTime = inputdata.value.Float();
+}
+
+void CFunc_LiquidPortal::InputStartFilling( inputdata_t &inputdata )
+{
+	AssertMsg( m_fFillEndTime <= gpGlobals->curtime, "Fill already in progress." );
+	m_fFillStartTime = gpGlobals->curtime;
+	m_fFillEndTime = gpGlobals->curtime + m_fFillTime;
+	m_bFillInProgress = true;
+
+	//reset the teleport list for this fill
+	m_hLeftToTeleportThisFill.RemoveAll();
+	m_hLeftToTeleportThisFill.AddVectorToTail( m_hTeleportList );
+
+	SetNextThink( gpGlobals->curtime + TICK_INTERVAL );
+}
+
+void CFunc_LiquidPortal::InputAddActivatorToTeleportList( inputdata_t &inputdata )
+{
+	if( inputdata.pActivator == NULL )
+		return;
+
+	for( int i = m_hTeleportList.Count(); --i >= 0; )
+	{
+		if( m_hTeleportList[i].Get() == inputdata.pActivator )
+			return; //only have 1 reference of each entity
+	}
+
+	m_hTeleportList.AddToTail( inputdata.pActivator );
+	if( m_bFillInProgress )
+		m_hLeftToTeleportThisFill.AddToTail( inputdata.pActivator );
+	
+	if( inputdata.pActivator->IsPlayer() )
+		((CPortal_Player *)inputdata.pActivator)->m_hSurroundingLiquidPortal = this;
+}
+
+void CFunc_LiquidPortal::InputRemoveActivatorFromTeleportList( inputdata_t &inputdata )
+{
+	if( inputdata.pActivator == NULL )
+		return;
+
+	for( int i = m_hTeleportList.Count(); --i >= 0; )
+	{
+		if( m_hTeleportList[i].Get() == inputdata.pActivator )
+		{
+			m_hTeleportList.FastRemove( i );
+
+			if( inputdata.pActivator->IsPlayer() && (((CPortal_Player *)inputdata.pActivator)->m_hSurroundingLiquidPortal.Get() == this) )
+				((CPortal_Player *)inputdata.pActivator)->m_hSurroundingLiquidPortal = NULL;
+			
+			if( m_bFillInProgress )
+			{
+				//remove from the list for this fill as well
+				for( int j = m_hLeftToTeleportThisFill.Count(); --j >= 0; )
+				{
+					if( m_hLeftToTeleportThisFill[j].Get() == inputdata.pActivator )
+					{
+						m_hLeftToTeleportThisFill.FastRemove( j );
+						break;
+					}
+				}
+			}
+
+			return;
+		}
+	}
+}
+
+void CFunc_LiquidPortal::SetLinkedLiquidPortal( CFunc_LiquidPortal *pLinked )
+{
+	CFunc_LiquidPortal *pCurrentLinkedPortal = m_hLinkedPortal.Get();
+	if( pCurrentLinkedPortal == pLinked )
+		return;
+
+	if( pCurrentLinkedPortal != NULL )
+	{
+		m_hLinkedPortal = NULL;
+		pCurrentLinkedPortal->SetLinkedLiquidPortal( NULL );
+	}
+
+	m_hLinkedPortal = pLinked;
+	if( pLinked != NULL )
+		pLinked->SetLinkedLiquidPortal( this );
+
+	ComputeLinkMatrix();
+}
+
+void CFunc_LiquidPortal::ComputeLinkMatrix( void )
+{
+	CFunc_LiquidPortal *pLinkedPortal = m_hLinkedPortal.Get();
+	if( pLinkedPortal )
+	{
+		VMatrix matLocalToWorld, matLocalToWorldInv, matRemoteToWorld;
+
+		matLocalToWorld = EntityToWorldTransform();
+		matRemoteToWorld = pLinkedPortal->EntityToWorldTransform();
+		
+		MatrixInverseTR( matLocalToWorld, matLocalToWorldInv );
+		m_matrixThisToLinked = matRemoteToWorld * matLocalToWorldInv;
+
+		MatrixInverseTR( m_matrixThisToLinked, pLinkedPortal->m_matrixThisToLinked );
+	}
+	else
+	{
+		m_matrixThisToLinked.Identity();
+	}
+}
+
+void CFunc_LiquidPortal::TeleportImmersedEntity( CBaseEntity *pEntity )
+{
+	if( pEntity == NULL )
+		return;
+
+	if( pEntity->IsPlayer() )
+	{
+		CPortal_Player *pEntityAsPlayer = (CPortal_Player *)pEntity;
+
+		Vector vNewOrigin = m_matrixThisToLinked * pEntity->GetAbsOrigin();
+		QAngle qNewAngles = TransformAnglesToWorldSpace( pEntityAsPlayer->EyeAngles(), m_matrixThisToLinked.As3x4() );
+		Vector vNewVelocity = m_matrixThisToLinked.ApplyRotation( pEntity->GetAbsVelocity() );
+
+		pEntity->Teleport( &vNewOrigin, &qNewAngles, &vNewVelocity );
+
+		pEntityAsPlayer->m_hSurroundingLiquidPortal = m_hLinkedPortal;
+	}
+	else
+	{
+		Vector vNewOrigin = m_matrixThisToLinked * pEntity->GetAbsOrigin();
+		QAngle qNewAngles = TransformAnglesToWorldSpace( pEntity->GetAbsAngles(), m_matrixThisToLinked.As3x4() );
+		Vector vNewVelocity = m_matrixThisToLinked.ApplyRotation( pEntity->GetAbsVelocity() );
+
+		pEntity->Teleport( &vNewOrigin, &qNewAngles, &vNewVelocity );
+	}
+}
+
+void CFunc_LiquidPortal::Think( void )
+{
+	if( m_bFillInProgress )
+	{
+		if( gpGlobals->curtime < m_fFillEndTime )
+		{
+			float fInterp = ((gpGlobals->curtime - m_fFillStartTime) / (m_fFillEndTime - m_fFillStartTime));
+			Vector vMins, vMaxs;
+			GetCollideable()->WorldSpaceSurroundingBounds( &vMins, &vMaxs );
+			vMaxs.z = vMins.z + ((vMaxs.z - vMins.z) * fInterp);
+
+			for( int i = m_hLeftToTeleportThisFill.Count(); --i >= 0; )
+			{
+				CBaseEntity *pEntity = m_hLeftToTeleportThisFill[i].Get();
+				if( pEntity == NULL )
+					continue;
+
+				Vector vEntMins, vEntMaxs;
+				pEntity->GetCollideable()->WorldSpaceSurroundingBounds( &vEntMins, &vEntMaxs );
+
+				if( vEntMaxs.z <= vMaxs.z )
+				{
+					TeleportImmersedEntity( pEntity );
+					m_hLeftToTeleportThisFill.FastRemove( i );
+				}
+			}
+
+			SetNextThink( gpGlobals->curtime + TICK_INTERVAL );
+		}
+		else
+		{
+			//teleport everything that's left in the list
+			for( int i = m_hLeftToTeleportThisFill.Count(); --i >= 0; )
+			{
+				TeleportImmersedEntity( m_hLeftToTeleportThisFill[i].Get() );
+			}
+
+			m_hLeftToTeleportThisFill.RemoveAll();
+			m_bFillInProgress = false;
+		}
+	}		
+}
+
+
+
+