Function GetNearbyItems

TombEngine/Game/collision/Los.cpp:29–79

namespace TEN::Collision::Los
{
	static std::vector<ItemInfo*> GetNearbyItems(const std::vector<int>& roomNumbers)
	{
		// Collect neighbor room numbers.
		auto neighborRoomNumbers = std::set<int>{};
		for (int roomNumber : roomNumbers)
		{
			const auto& room = g_Level.Rooms[roomNumber];
			neighborRoomNumbers.insert(room.NeighborRoomNumbers.begin(), room.NeighborRoomNumbers.end());
		}

		// Run through neighbor rooms.
		auto items = std::vector<ItemInfo*>{};
		for (int neighborRoomNumber : neighborRoomNumbers)
		{
			const auto& neighborRoom = g_Level.Rooms[neighborRoomNumber];
			if (!neighborRoom.Active())
				continue;

			// Run through items in room.
			int itemNumber = neighborRoom.itemNumber;
			while (itemNumber != NO_VALUE)
			{
				auto& item = g_Level.Items[itemNumber];

				// HACK: For some reason, infinite loop may sometimes occur.
				if (itemNumber == item.NextItem)
					break;
				itemNumber = item.NextItem;

				// 1) Ignore bridges (handled as part of room collision).
				if (item.IsBridge())
					continue;

				// 2) Check collidability.
				const auto& object = Objects[item.ObjectNumber];
				if (!item.Collidable || item.Flags & IFLAG_KILLED ||
					object.collision == nullptr || object.Hidden)
				{
					continue;
				}

				// 3) Check status.
				if (item.Status == ItemStatus::ITEM_INVISIBLE || item.Status == ItemStatus::ITEM_DEACTIVATED)
					continue;

				items.push_back(&item);
			}
		}

		return items;
	}

	static std::vector<StaticMesh*> GetNearbyStatics(const std::vector<int>& roomNumbers)
	{