//-----------------------------------------------------------------------------
// Purpose: Returns the magnitude of the entity's angular velocity.
//-----------------------------------------------------------------------------
void CPointVelocitySensor::SampleVelocity( void )
{
	if ( m_hTargetEntity == NULL )
		return;

	Vector vecVelocity;

	if ( m_hTargetEntity->GetMoveType() == MOVETYPE_VPHYSICS )
	{
		IPhysicsObject *pPhys = m_hTargetEntity->VPhysicsGetObject();
		if ( pPhys != NULL )
		{
			pPhys->GetVelocity( &vecVelocity, NULL );
		}
	}
	else
	{
		vecVelocity = m_hTargetEntity->GetAbsVelocity();
	}

	/*
	float flSpeed = VectorNormalize( vecVelocity );
	float flDot = ( m_vecAxis != vec3_origin ) ? DotProduct( vecVelocity, m_vecAxis ) : 1.0f;
	*/
	// We want the component of the velocity vector in the direction of the axis, which since the
	// axis is normalized is simply their dot product (eg V . A = |V|*|A|*cos(theta) )
	m_fPrevVelocity = ( m_vecAxis != vec3_origin ) ? DotProduct( vecVelocity, m_vecAxis ) : 1.0f;

	// if it's changed since the last frame, poke the output 
	if ( m_fPrevVelocity != m_Velocity.Get() )
	{
		m_Velocity.Set( m_fPrevVelocity, NULL, NULL );
	}
}
Example #2
0
//------------------------------------------------------------------------------
// Purpose: Samples the player's inputs and fires outputs based on what buttons
//			are currently held down.
//------------------------------------------------------------------------------
void CGameUI::Think( void )
{
	CBasePlayer *pPlayer = m_player;

	// If player is gone, stop thinking
	if (pPlayer == NULL)
	{
		SetNextThink( TICK_NEVER_THINK );
		return;
	}

	// If we're forcing an update, state with a clean button state
	if ( m_bForceUpdate )
	{
		m_nLastButtonState = pPlayer->m_nButtons;
	}

	// ------------------------------------------------
	// Check that toucher is facing the UI within
	// the field of view tolerance.  If not disconnect
	// ------------------------------------------------
	if (m_flFieldOfView > -1)
	{
		Vector vPlayerFacing;
		pPlayer->EyeVectors( &vPlayerFacing );
		Vector vPlayerToUI =  GetAbsOrigin() - pPlayer->WorldSpaceCenter();
		VectorNormalize(vPlayerToUI);

		float flDotPr = DotProduct(vPlayerFacing,vPlayerToUI);
		if (flDotPr < m_flFieldOfView)
		{
			Deactivate( pPlayer );
			return;
		}
	}

	pPlayer->AddFlag( FL_ONTRAIN );
	SetNextThink( gpGlobals->curtime );

	// Deactivate if they jump or press +use.
	// FIXME: prevent the use from going through in player.cpp
	if ((( pPlayer->m_afButtonPressed & IN_USE ) && ( m_spawnflags & SF_GAMEUI_USE_DEACTIVATES )) ||
		(( pPlayer->m_afButtonPressed & IN_JUMP ) && ( m_spawnflags & SF_GAMEUI_JUMP_DEACTIVATES )))
	{
		Deactivate( pPlayer );
		return;
	}

	// Determine what's different
	int nButtonsChanged = ( pPlayer->m_nButtons ^ m_nLastButtonState );

	//
	// Handle all our possible input triggers
	//

	if ( nButtonsChanged & IN_MOVERIGHT )
	{
		if ( m_nLastButtonState & IN_MOVERIGHT )
		{
			m_unpressedMoveRight.FireOutput( pPlayer, this, 0 );
		}
		else
		{
			m_pressedMoveRight.FireOutput( pPlayer, this, 0 );
		}
	}

	if ( nButtonsChanged & IN_MOVELEFT )
	{
		if ( m_nLastButtonState & IN_MOVELEFT )
		{
			m_unpressedMoveLeft.FireOutput( pPlayer, this, 0 );
		}
		else
		{
			m_pressedMoveLeft.FireOutput( pPlayer, this, 0 );
		}
	}

	if ( nButtonsChanged & IN_FORWARD )
	{
		if ( m_nLastButtonState & IN_FORWARD )
		{
			m_unpressedForward.FireOutput( pPlayer, this, 0 );
		}
		else
		{
			m_pressedForward.FireOutput( pPlayer, this, 0 );
		}
	}

	if ( nButtonsChanged & IN_BACK )
	{
		if ( m_nLastButtonState & IN_BACK )
		{
			m_unpressedBack.FireOutput( pPlayer, this, 0 );
		}
		else
		{
			m_pressedBack.FireOutput( pPlayer, this, 0 );
		}
	}

	if ( nButtonsChanged & IN_ATTACK )
	{
		if ( m_nLastButtonState & IN_ATTACK )
		{
			m_unpressedAttack.FireOutput( pPlayer, this, 0 );
		}
		else
		{
			m_pressedAttack.FireOutput( pPlayer, this, 0 );
		}
	}

	if ( nButtonsChanged & IN_ATTACK2 )
	{
		if ( m_nLastButtonState & IN_ATTACK2 )
		{
			m_unpressedAttack2.FireOutput( pPlayer, this, 0 );
		}
		else
		{
			m_pressedAttack2.FireOutput( pPlayer, this, 0 );
		}
	}

	// Setup for the next frame
	m_nLastButtonState = pPlayer->m_nButtons;

	float x = 0, y = 0, attack = 0, attack2 = 0;
	if ( pPlayer->m_nButtons & IN_MOVERIGHT )
	{
		x = 1;
	}
	else if ( pPlayer->m_nButtons & IN_MOVELEFT )
	{
		x = -1;
	}

	if ( pPlayer->m_nButtons & IN_FORWARD )
	{
		y = 1;
	}
	else if ( pPlayer->m_nButtons & IN_BACK )
	{
		y = -1;
	}

	if ( pPlayer->m_nButtons & IN_ATTACK )
	{
		attack = 1;
	}

	if ( pPlayer->m_nButtons & IN_ATTACK2 )
	{
		attack2 = 1;
	}

	//
	// Fire the analog outputs if they changed.
	//
	if ( m_bForceUpdate || ( m_xaxis.Get() != x ) )
	{
		m_xaxis.Set( x, pPlayer, this );
	}

	if ( m_bForceUpdate || ( m_yaxis.Get() != y ) )
	{
		m_yaxis.Set( y, pPlayer, this );
	}

	if ( m_bForceUpdate || ( m_attackaxis.Get() != attack ) )
	{
		m_attackaxis.Set( attack, pPlayer, this );
	}

	if ( m_bForceUpdate || ( m_attack2axis.Get() != attack2 ) )
	{
		m_attack2axis.Set( attack2, pPlayer, this );
	}

	m_bForceUpdate = false;
}