Function UpdateLocusts

TombEngine/Objects/TR4/Entity/Locust.cpp:124–227

	}

	void UpdateLocusts()
	{
		int closestDist = INT_MAX;
		int closestNumber = NO_VALUE;

		for (int i = 0; i < MAX_LOCUSTS; i++)
		{
			auto* locust = &Locusts[i];

			if (!locust->On)
				continue;

			locust->StoreInterpolationData();

			auto* targetItem = &g_Level.Items[locust->Target];

			if ((targetItem->Effect.Type != EffectType::None || targetItem->HitPoints <= 0) &&
				locust->Counter > LOCUST_FLYOFF_TIMEOUT && !(GetRandomControl() & 7))
			{
				locust->Counter = LOCUST_FLYOFF_TIMEOUT;
			}

			locust->Counter--;

			if (locust->Counter == 0)
			{
				locust->On = false;
				continue;
			}

			if (!(GetRandomControl() & 7))
			{
				locust->Offset.x = (GetRandomControl() & 0x7F) - 64;
				locust->Offset.y = GetRandomControl() % 640 + 128;
				locust->Offset.z = (GetRandomControl() & 0x7F) - 64;
			}

			auto angles = Geometry::GetOrientToPoint(
				locust->Pose.Position.ToVector3(),
				Vector3(
					targetItem->Pose.Position.x + locust->Offset.x * 8,
					targetItem->Pose.Position.y - locust->Offset.y,
					targetItem->Pose.Position.z + locust->Offset.z * 8
				));

			int distance = Vector3i::Distance(targetItem->Pose.Position, locust->Pose.Position);

			if (distance < closestDist && targetItem->IsLara())
			{
				closestDist = distance;
				closestNumber = i;
			}

			if (distance > BLOCK(1))
				distance = BLOCK(1);
			else if (distance < BLOCK(2.5f))
				distance = BLOCK(2.5f);