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This function returns the closest clone of a particular actor.

Code: Select all

Actor *getClosestClone( char *actorName)
{

  Actor *resultActor;
  Actor *testActor;
  int nClones = 0;
  int index = 1;
  double testDistance;
  double minDistance = 1024;
 
  nClones = ActorCount( actorName );

  while ( index <= nClones )
  {
    testActor = getclone2( actorName, index - 1 );
    testDistance = distance ( x, y , testActor->x, testActor->y );
 
    if ( testDistance < minDistance )
    {
      minDistance = testDistance;
      resultActor = testActor;
    }
 
    index++;
  }

  return resultActor;

}

How do I set this up so it will return Actor if success, invalid Actor (with cloneindex = -1 and name = "invalid Actor") on error?

You can initialize the resultActor:

Actor *resultActor = NULL;

And test for a NULL result when using the function

Thanks mate.