Add checks to GameMessage::MSG_SET_BEACON_TEXT

[Caball009]

GeneralsGameCode/Core/GameEngine/Source/GameLogic/System/GameLogicDispatch.cpp

Lines 1888 to 1916 in f334383

	case GameMessage::MSG_SET_BEACON_TEXT:
	{
	if( currentlySelectedGroup )
	{
	const VecObjectID& selectedObjects = currentlySelectedGroup->getAllIDs();
	for (VecObjectID::const_iterator it = selectedObjects.begin(); it != selectedObjects.end(); ++it)
	{
	Object *beacon = findObjectByID(*it);
	if (beacon)
	{
	Drawable *beaconDrawable = beacon->getDrawable();
	if (beaconDrawable)
	{
	UnicodeString s;
	for( int i=0; i<msg->getArgumentCount(); i++ )
	{
	s.concat( msg->getArgument(i)->wChar );
	}
	if (s.isEmpty())
	beaconDrawable->clearCaptionText();
	else
	beaconDrawable->setCaptionText(s);
	}
	}
	}
	}
	break;
	}

GameMessage::MSG_SET_BEACON_TEXT could use a couple of checks:

• verify that selected object is a beacon.
• lower the max char count from 255 (the max argument count) to a more acceptable number.
• sanitize string; e.g. new line characters should be ignored.
• limit the number of changes; e.g. once every 10 seconds or max 10 changes.