C++ Portal::crossedPortal方法代码示例

	/** Update the zone data for the portals in the zone
	* NOTE: All portal spatial data must be up-to-date before calling this routine.
	*/
	void DefaultZone::updatePortalsZoneData(void)
	{
		PortalList transferPortalList;
		AntiPortalList transferAntiPortalList;
		// check each portal to see if it's intersecting another portal of smaller size
		for ( PortalList::iterator it = mPortals.begin(); it != mPortals.end(); ++it )
		{
			Portal * p = *it;
			bool portalNeedUpdate = p->needUpdate();

			Real pRadius = p->getRadius();

			// First we check against portals in the SAME zone (and only if they have a 
			// target zone different from the home zone)
			// Here we check only against portals that moved and of smaller size.

			// We do not need to check portal againts previous portals 
			// since it would have been already checked.
			// Hence we start with the next portal after the current portal.
			PortalList::iterator it2 = it;
			for ( ++it2; it2 != mPortals.end(); ++it2 )
			{
				Portal * p2 = (*it2);

				// Skip portal if it doesn't need updating.
				// If both portals are not moving, then there's no need to check between them.
				if (!portalNeedUpdate && !p2->needUpdate()) continue;

				// Skip portal if it's not pointing to another zone.
				if (p2->getTargetZone() == this) continue;

				// Skip portal if it's pointing to the same target zone as this portal points to
				if (p2->getTargetZone() == p->getTargetZone()) continue;

				if (pRadius > p2->getRadius())
				{
					// Portal#1 is bigger than Portal#2, check for crossing
					if (p2->getCurrentHomeZone() != p->getTargetZone() && p2->crossedPortal(p))
					{
						// portal#2 crossed portal#1 - flag portal#2 to be moved to portal#1's target zone
						p2->setNewHomeZone(p->getTargetZone());
						transferPortalList.push_back(p2);
					}
				}
				else if (pRadius < p2->getRadius())
				{
					// Portal #2 is bigger than Portal #1, check for crossing
					if (p->getCurrentHomeZone() != p2->getTargetZone() && p->crossedPortal(p2))
					{
						// portal#1 crossed portal#2 - flag portal#1 to be moved to portal#2's target zone
						p->setNewHomeZone(p2->getTargetZone());
						transferPortalList.push_back(p);
						continue;
					}
				}
			}

			// Secondly we check againts the antiportals of this zone.
			for (AntiPortalList::iterator ait = mAntiPortals.begin(); ait != mAntiPortals.end(); ++ait)
			{
				AntiPortal* ap = (*ait);

				// Skip portal if it doesn't need updating.
				// If both portals are not moving, then there's no need to check between them.
				if (!portalNeedUpdate && !ap->needUpdate()) continue;

				// only check for crossing if AntiPortal smaller than portal.
				if (pRadius > ap->getRadius())
				{
					// Portal#1 is bigger than AntiPortal, check for crossing
					if (ap->crossedPortal(p))
					{
						// AntiPortal crossed Portal#1 - flag AntiPortal to be moved to Portal#1's target zone
						ap->setNewHomeZone(p->getTargetZone());
						transferAntiPortalList.push_back(ap);
					}
				}
			}

			// Skip portal if it doesn't need updating.
			if (!portalNeedUpdate) continue;

			// Thirdly we check against portals in the target zone (and only if that target
			// zone is different from the home zone)
			PCZone * tzone = p->getTargetZone();
			if (tzone != this)
			{
				for ( PortalList::iterator it3 = tzone->mPortals.begin(); it3 != tzone->mPortals.end(); ++it3 )
				{
					Portal * p3 = (*it3);
					// only check against bigger regular portals
					if (pRadius < p3->getRadius())
					{
						// Portal#3 is bigger than Portal#1, check for crossing
						if (p->getCurrentHomeZone() != p3->getTargetZone() && p->crossedPortal(p3))
						{
							// Portal#1 crossed Portal#3 - switch target zones for Portal#1
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