C++ MagicField::isReplaceable方法代码示例

void Tile::addThing(int32_t, Thing* thing)
{
	Creature* creature = thing->getCreature();
	if (creature) {
		g_game.map.clearSpectatorCache();
		creature->setParent(this);
		CreatureVector* creatures = makeCreatures();
		creatures->insert(creatures->begin(), creature);
	} else {
		Item* item = thing->getItem();
		if (item == nullptr) {
			return /*RETURNVALUE_NOTPOSSIBLE*/;
		}

		TileItemVector* items = getItemList();
		if (items && items->size() >= 0xFFFF) {
			return /*RETURNVALUE_NOTPOSSIBLE*/;
		}

		item->setParent(this);

		const ItemType& itemType = Item::items[item->getID()];
		if (itemType.isGroundTile()) {
			if (ground == nullptr) {
				ground = item;
				onAddTileItem(item);
			} else {
				const ItemType& oldType = Item::items[ground->getID()];

				Item* oldGround = ground;
				ground->setParent(nullptr);
				g_game.ReleaseItem(ground);
				ground = item;
				resetTileFlags(oldGround);
				setTileFlags(item);
				onUpdateTileItem(oldGround, oldType, item, itemType);
				postRemoveNotification(oldGround, nullptr, 0);
			}
		} else if (itemType.alwaysOnTop) {
			if (itemType.isSplash() && items) {
				//remove old splash if exists
				for (ItemVector::const_iterator it = items->getBeginTopItem(), end = items->getEndTopItem(); it != end; ++it) {
					Item* oldSplash = *it;
					if (!Item::items[oldSplash->getID()].isSplash()) {
						continue;
					}

					removeThing(oldSplash, 1);
					oldSplash->setParent(nullptr);
					g_game.ReleaseItem(oldSplash);
					postRemoveNotification(oldSplash, nullptr, 0);
					break;
				}
			}

			bool isInserted = false;

			if (items) {
				for (ItemVector::iterator it = items->getBeginTopItem(), end = items->getEndTopItem(); it != end; ++it) {
					//Note: this is different from internalAddThing
					if (itemType.alwaysOnTopOrder <= Item::items[(*it)->getID()].alwaysOnTopOrder) {
						items->insert(it, item);
						isInserted = true;
						break;
					}
				}
			} else {
				items = makeItemList();
			}

			if (!isInserted) {
				items->push_back(item);
			}

			onAddTileItem(item);
		} else {
			if (itemType.isMagicField()) {
				//remove old field item if exists
				if (items) {
					for (ItemVector::const_iterator it = items->getBeginDownItem(), end = items->getEndDownItem(); it != end; ++it) {
						MagicField* oldField = (*it)->getMagicField();
						if (oldField) {
							if (oldField->isReplaceable()) {
								removeThing(oldField, 1);

								oldField->setParent(nullptr);
								g_game.ReleaseItem(oldField);
								postRemoveNotification(oldField, nullptr, 0);
								break;
							} else {
								//This magic field cannot be replaced.
								item->setParent(nullptr);
								g_game.ReleaseItem(item);
								return;
							}
						}
					}
				}
			}

//.........这里部分代码省略.........

//.........这里部分代码省略.........
				ground = item;
				updateTileFlags(oldGround, true);
				updateTileFlags(item, false);
				onUpdateTileItem(oldGround, oldType, item, newType);
				postRemoveNotification(oldGround, NULL, oldGroundIndex, true);
			}
		}
		else if (item->isAlwaysOnTop())
		{
			if (item->isSplash())
			{
				//remove old splash if exists
				if (items)
				{
					for (ItemVector::iterator it = items->getBeginTopItem(); it != items->getEndTopItem(); ++it)
					{
						if ((*it)->isSplash())
						{
							int32_t oldSplashIndex = __getIndexOfThing(*it);
							Item* oldSplash = *it;
							__removeThing(oldSplash, 1);
							oldSplash->setParent(NULL);
							g_game.FreeThing(oldSplash);
							postRemoveNotification(oldSplash, NULL, oldSplashIndex, true);
							break;
						}
					}
				}
			}

			bool isInserted = false;

			if (items)
			{
				for (ItemVector::iterator it = items->getBeginTopItem(); it != items->getEndTopItem(); ++it)
				{
					//Note: this is different from internalAddThing
					if (Item::items[item->getID()].alwaysOnTopOrder <= Item::items[(*it)->getID()].alwaysOnTopOrder)
					{
						items->insert(it, item);
						++thingCount;
						isInserted = true;
						break;
					}
				}
			}
			else
			{
				items = makeItemList();
			}

			if (!isInserted)
			{
				items->push_back(item);
				++thingCount;
			}

			onAddTileItem(item);
		}
		else
		{
			if (item->isMagicField())
			{
				//remove old field item if exists
				if (items)
				{
					MagicField* oldField = NULL;

					for (ItemVector::iterator it = items->getBeginDownItem(); it != items->getEndDownItem(); ++it)
					{
						if ((oldField = (*it)->getMagicField()))
						{
							if (oldField->isReplaceable())
							{
								int32_t oldFieldIndex = __getIndexOfThing(*it);
								__removeThing(oldField, 1);
								oldField->setParent(NULL);
								g_game.FreeThing(oldField);
								postRemoveNotification(oldField, NULL, oldFieldIndex, true);
								break;
							}
							else
							{
								//This magic field cannot be replaced.
								item->setParent(NULL);
								g_game.FreeThing(item);
								return;
							}
						}
					}
				}
			}

			items = makeItemList();
			items->insert(items->getBeginDownItem(), item);
			++items->downItemCount;
			++thingCount;
			onAddTileItem(item);
		}
	}