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game/server/hl2/vehicle_viewcontroller.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: This is a bastardization of the vehicle code for the choreography
+//			group who want to have smooth view lerping code out of a keyframed
+//			controlled player viewpoint.
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+#include "vehicle_base.h"
+#include "hl2_player.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class CPropVehicleViewController : public CPropVehicleDriveable
+{
+	DECLARE_CLASS( CPropVehicleViewController, CPropVehicleDriveable );
+public:
+	DECLARE_DATADESC();
+
+	// CBaseEntity
+	void			Spawn( void ); 
+	void			Think(void);
+
+	// CPropVehicle
+	virtual void	SetupMove( CBasePlayer *player, CUserCmd *ucmd, IMoveHelper *pHelper, CMoveData *move );
+	virtual void	EnterVehicle( CBasePlayer *pPlayer );
+	virtual void	ExitVehicle( int nRole );
+
+	// Inputs to force the player in/out of the vehicle
+	void			InputForcePlayerIn( inputdata_t &inputdata );
+	void			InputForcePlayerOut( inputdata_t &inputdata );
+};
+
+BEGIN_DATADESC( CPropVehicleViewController )
+	DEFINE_INPUTFUNC( FIELD_STRING, "ForcePlayerIn", InputForcePlayerIn ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "ForcePlayerOut", InputForcePlayerOut ),
+END_DATADESC()
+
+LINK_ENTITY_TO_CLASS( vehicle_viewcontroller, CPropVehicleViewController );
+
+//------------------------------------------------
+// Spawn
+//------------------------------------------------
+void CPropVehicleViewController::Spawn( void )
+{
+	BaseClass::Spawn();
+	AddSolidFlags( FSOLID_NOT_STANDABLE );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPropVehicleViewController::Think(void)
+{
+	BaseClass::Think();
+
+	SetSimulationTime( gpGlobals->curtime );
+	SetNextThink( gpGlobals->curtime );
+	SetAnimatedEveryTick( true );
+
+	StudioFrameAdvance();
+
+	// If the exit anim has finished, move the player to the right spot and stop animating
+	if ( IsSequenceFinished() && (m_bExitAnimOn || m_bEnterAnimOn) )
+	{
+		// If we're exiting and have had the tau cannon removed, we don't want to reset the animation
+		GetServerVehicle()->HandleEntryExitFinish( m_bExitAnimOn, false );
+		m_bExitAnimOn = false;
+		m_bEnterAnimOn = false;
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPropVehicleViewController::SetupMove( CBasePlayer *player, CUserCmd *ucmd, IMoveHelper *pHelper, CMoveData *move )
+{
+	// Does nothing, because this vehicle doesn't drive
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//    NOTE: Doesn't call the base call enter vehicle on purpose!
+//-----------------------------------------------------------------------------
+void CPropVehicleViewController::EnterVehicle( CBasePlayer *pPlayer )
+{
+	if ( !pPlayer )
+		return;
+
+	m_hPlayer = pPlayer;
+
+	pPlayer->SetViewOffset( vec3_origin );
+	pPlayer->ShowCrosshair( false );
+	m_playerOn.FireOutput( pPlayer, this, 0 );
+
+	// Start Thinking
+	SetNextThink( gpGlobals->curtime );
+
+	m_VehiclePhysics.GetVehicle()->OnVehicleEnter();
+
+	// Stop the player sprint and flashlight.
+	CHL2_Player *pHL2Player = dynamic_cast<CHL2_Player*>( pPlayer );
+	if ( pHL2Player )
+	{
+		if ( pHL2Player->IsSprinting() )
+		{
+			pHL2Player->StopSprinting();
+		}
+
+		if ( pHL2Player->FlashlightIsOn() )
+		{
+			pHL2Player->FlashlightTurnOff();
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPropVehicleViewController::ExitVehicle( int nRole )
+{
+	BaseClass::ExitVehicle( nRole );
+	m_bEnterAnimOn = false;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPropVehicleViewController::InputForcePlayerIn( inputdata_t &inputdata )
+{
+	CBasePlayer *pPlayer = UTIL_PlayerByIndex(1);
+	if ( !pPlayer )
+		return;
+
+	ResetUseKey( pPlayer );
+
+	// Get the entry animation from the input
+	int iEntryAnim = ACTIVITY_NOT_AVAILABLE;
+	if ( inputdata.value.StringID() != NULL_STRING )
+	{
+		iEntryAnim = LookupSequence( inputdata.value.String() );
+		if ( iEntryAnim == ACTIVITY_NOT_AVAILABLE )
+		{
+			Warning("vehicle_viewcontroller %s could not find specified entry animation %s\n", STRING(GetEntityName()), inputdata.value.String() );
+			return;
+		}
+	}
+
+	// Make sure we successfully got in the vehicle
+	if ( pPlayer->GetInVehicle( GetServerVehicle(), VEHICLE_ROLE_DRIVER ) == false )
+	{
+		// The player was unable to enter the vehicle and the output has failed
+		Assert( 0 );
+		return;
+	}
+
+	// Setup the "enter" vehicle sequence
+	SetCycle( 0 );
+	m_flAnimTime = gpGlobals->curtime;
+	ResetSequence( iEntryAnim );
+	ResetClientsideFrame();
+	m_bEnterAnimOn = true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPropVehicleViewController::InputForcePlayerOut( inputdata_t &inputdata )
+{
+	if ( !GetDriver() )
+		return;
+
+	GetServerVehicle()->HandlePassengerExit( m_hPlayer );
+}