Talk:Env tracer

What is the actual use of this entity? Pinsplash (talk) 15:39, 16 July 2018 (UTC)

No idea, I'll just put the entire code for the entity and you make the conclusion.--Ficool2 (talk) 15:45, 16 July 2018 (UTC)

// ENV_TRACER
// Fakes a tracer
class CEnvTracer : public CPointEntity
{
public:
	DECLARE_CLASS( CEnvTracer, CPointEntity );

	void Spawn( void );
	void TracerThink( void );
	void Activate( void );

	DECLARE_DATADESC();

	Vector m_vecEnd;
	float  m_flDelay;
};

LINK_ENTITY_TO_CLASS( env_tracer, CEnvTracer );

BEGIN_DATADESC( CEnvTracer )

	DEFINE_KEYFIELD( m_flDelay, FIELD_FLOAT, "delay" ),

	DEFINE_FIELD( m_vecEnd, FIELD_POSITION_VECTOR ),

	// Function Pointers
	DEFINE_FUNCTION( TracerThink ),

END_DATADESC()



//-----------------------------------------------------------------------------
// Purpose: Called after keyvalues are parsed.
//-----------------------------------------------------------------------------
void CEnvTracer::Spawn( void )
{
	SetSolid( SOLID_NONE );
	SetMoveType( MOVETYPE_NONE );

	if (!m_flDelay)
		m_flDelay = 1;
}


//-----------------------------------------------------------------------------
// Purpose: Called after all the entities have been loaded.
//-----------------------------------------------------------------------------
void CEnvTracer::Activate( void )
{
	BaseClass::Activate();

	CBaseEntity *pEnd = gEntList.FindEntityByName( NULL, m_target );
	if (pEnd != NULL)
	{
		m_vecEnd = pEnd->GetLocalOrigin();
		SetThink( &CEnvTracer::TracerThink );
		SetNextThink( gpGlobals->curtime + m_flDelay );
	}
	else
	{
		Msg( "env_tracer: unknown entity \"%s\"\n", STRING(m_target) );
	}
}

// Think
void CEnvTracer::TracerThink( void )
{
	UTIL_Tracer( GetAbsOrigin(), m_vecEnd );

	SetNextThink( gpGlobals->curtime + m_flDelay );
}