C / C++ / MFC

RTI::AttributeHandleValuePairSet* Ball::createNVPSet()
{
RTI::AttributeHandleValuePairSet* pBallAttributes = NULL;

//! Make sure the RTI Ambassador is set.
if ( ms_rtiAmb ) // if ms_rtiAmb!=NULL 
{
pBallAttributes = RTI::AttributeSetFactory::create( 4 );

pBallAttributes->add( Ball::ms_ballLocationXId,
(char*)&this->m_currentState.x,
sizeof(double) );
pBallAttributes->add( Ball::ms_ballLocationYId,
(char*)&this->m_currentState.y,
sizeof(double) );
pBallAttributes->add( Ball::ms_ballVelocityXId,
(char*)&this->m_currentState.vx,
sizeof(double) );
pBallAttributes->add( Ball::ms_ballVelocityYId,
(char*)&this->m_currentState.vy,
sizeof(double) );
}

//! pClockAttributes is allocated on the heap and must be
//! deallocated by the calling function
return pBallAttributes;
}


void Ball::sendUpdate()
{
if ( m_nextStateCalculated == RTI::RTI_TRUE )
{
m_currentState = m_nextState;
m_nextStateCalculated = RTI::RTI_FALSE;

try
{
/*!
* In order to send the values of our attributes, we must
* construct an AttributeHandleValuePairSet (AHVPS) which
* is a set comprised of attribute handles, values, and
* the size of the values.
*/
RTI::AttributeHandleValuePairSet* pNvpSet = createNVPSet();
/*!
* Send the AHVPS to the federation.
*
* this call returns an event retraction handle but we
* don't support event retraction so no need to store it.
*/
(void) ms_rtiAmb->updateAttributeValues( getInstanceId(),
*pNvpSet,
NULL );
//! Must free the memory
pNvpSet->empty();
delete pNvpSet;
}
catch ( RTI::Exception& e )
{
cerr << "BALL: Error:" << &e << endl;
}
}
}




void Ball::update(
RTI::InteractionClassHandle theInteraction,
const RTI::ParameterHandleValuePairSet& theParameters )
{
if (ms_rtiAmb) // if ms_rtiAmb!=NULL 
{
if ( theInteraction == Ball::ms_clockTickId )
{
RTI::ParameterHandle paramHandle;
RTI::ULong valueLength;

//! We need to iterate through the AttributeHandleValuePairSet
//! to extract each AttributeHandleValuePair. Based on the type
//! specified ( the value returned by getHandle() ) we need to
//! extract the data frlom the buffer that is returned by
//! getValue().
for ( unsigned int i = 0; i < theParameters.size(); i++ )
{
paramHandle = theParameters.getHandle( i );
if ( paramHandle == Ball::ms_clockTickIntervalId )
{
double timeInterval = 1 / 60.0;
theParameters.getValue( i, (char*)&timeInterval, valueLength );

//! Update all clock objects
for ( unsigned int j = 0; j < ms_numInstances; j++ )
{
( *( (Ball*)(ms_instances[j]) ) ).m_stateTimeInterval = timeInterval;
}
}
else if ( paramHandle == Ball::ms_clockTickNumId )
{
//! Don't care
}
else if ( paramHandle == Ball::ms_clockTickTimeId )
{
//! Don't care
}
else
{
//! There must be an error since there should only be
//! one parameter to Communication.
cerr << "BALL: Error: I seem to have received a parameter for "
<< "interaction class ClockTick that I don't "
<< "know about." << endl;
}
}

Ball* pBall;

for ( unsigned int k = 0; k < ms_numInstances; k++ )
{
cout << "BALL: Iterating through all Balls." << endl;

//! Get a pointer to the ball instance
pBall = (Ball*)ms_instances[ k ];

//! ** dequeue state from m_stateQueue and place it in m_currentState
if ( pBall->m_nextStateCalculated == RTI::RTI_TRUE )
{
pBall->m_currentState = pBall->m_nextState;
pBall->m_nextStateCalculated = RTI::RTI_FALSE;

try
{
/*!
* In order to send the values of our attributes, we must
* construct an AttributeHandleValuePairSet (AHVPS) which
* is a set comprised of attribute handles, values, and
* the size of the values. CreateNVPSet() is a method
* defined on the Ball class - it is not part of the RTI.
* Look inside the method to see how to construct an AHVPS
*/
cout << "BALL: Creating NVP set." << endl;
RTI::AttributeHandleValuePairSet* pNvpSet = pBall->createNVPSet();
/*!
* Send the AHVPS to the federation.
*
* this call returns an event retraction handle but we
* don't support event retraction so no need to store it.
*/
cout << "BALL: Sending new ball state out into the world." << endl;
(void) ms_rtiAmb->updateAttributeValues( pBall->getInstanceId(),
*pNvpSet,
NULL );
//! Must free the memory
pNvpSet->empty();
delete pNvpSet;
}
catch ( RTI::Exception& e )
{
cerr << "BALL: Error:" << &e << endl;
}
}
else
{
cerr << "BALL: Next state not ready." << endl;
}
}

}
else
{
cerr << "BALL: Recieved an interaction class I don't know about." << endl;
}

}
} 

take away the preprocessor statements

WhiteSky wrote:

Do you need to customize titlebar from your application?

---
Hakuna-Matada
It means no worries for the rest of your days...
It's our problem free, Philosophy
<marquee behavior="alternate" scrollamount="5" scrolldelay="50">

ivanris wrote:

But no one seems willing to tell me, or i'm trying smt impossible?

ivanris wrote:

But no one seems willing to tell me, or i'm trying smt impossible?

ivanris wrote:

How to display a dialog in SDI app that has a class derrived from CRecordView?

Sina Parastgary wrote:

shell a program hidden and i want my program to wait until the shelled program ends

Sina Parastgary wrote:

wait until the shelled program ends

Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_