Method UpdateSyncronous

trinity/Eve/SpaceObject/EveMissile.cpp:111–212

-------------------------------------------------------------------------------- Description: Main update method called every frame. Here we do all sorts of things: get the position/orientation of the underlying ball and the target ball (if there is any: bombs don't have targets!), update each warheads state and position and calculate the bounding sphere surrounding all warheads on this missile. A

//   time - current game time
// --------------------------------------------------------------------------------
void EveMissile::UpdateSyncronous( const EveUpdateContext& updateContext )
{
	EveSpaceObject2::UpdateSyncronous( updateContext );
	Be::Time time = updateContext.GetTime();
	float deltaT = updateContext.GetDeltaT();

	// get inv ball rotation, is needed for update of each warhead
	Matrix invBallRotationMatrix = IdentityMatrix();
	if( m_ballRotation )
	{
		Quaternion quat( 0.f, 0.f, 0.f, 1.f );
		// get rotation quaternion of our ball
		m_ballRotation->Update( &quat, time );
		// we may need the ball rotation matrix
		// inverse it to get inverse!
		quat = Inverse( quat );
		// turn it into the matrix we need
		invBallRotationMatrix = RotationMatrix( quat );
	}

	// time goes on
	m_time += deltaT;

	// get data from destiny
	Vector3 myPosition( 0.f, 0.f, 0.f );
	Vector3 myVelocity( 0.f, 0.f, 0.f );
	if( m_ballPosition && m_target )
	{
		// Estimate the time to target each frame, this INCLUDES delay and eject time
		m_ballPosition->GetValueAt( &myPosition, time );
		m_ballPosition->GetValueDotAt( &myVelocity, time );
		Vector3 targetPositionWS;
		m_target->GetDamageLocatorPosition( &targetPositionWS, -1, true );

		// calc speed
		float speed = Length( myVelocity );

		// is speed of zero is dangerous
		if( speed > 0.f )
		{
			// update the total alive time based on time already passed and distance / speed of missile ball to target
			Vector3 dir( myPosition - targetPositionWS );
			m_estimatedTotalAliveTime = m_time + ( Length( dir ) - m_targetRadius ) / speed;
			m_lastValidSpeed = speed;
		}
		else if( m_lastValidSpeed > 0.f )
		{
			// This means the ball has hit the target, but the warhead may still on the way to the target
			Vector3 dir( myPosition - targetPositionWS );
			myVelocity = Normalize( dir );
			myVelocity *= m_lastValidSpeed;
		}
	}

	Vector3 worldPos = GetWorldPosition();

	// update the submissiles aka warheads
	for( EveMissileWarheadVector::const_iterator it = m_warheads.begin(); it != m_warheads.end(); ++it )