C++ CSystem::GetObjectCount方法代码示例

bool CDockingPorts::ShipsNearPort (CSpaceObject *pOwner, CSpaceObject *pRequestingObj, const CVector &vPortPos)

//	ShipsNearPort
//
//	Returns TRUE if there are ships near the given port

	{
	int i;
	CSystem *pSystem = pOwner->GetSystem();

	for (i = 0; i < pSystem->GetObjectCount(); i++)
		{
		CSpaceObject *pObj = pSystem->GetObject(i);
		if (pObj
				&& pObj->GetCategory() == CSpaceObject::catShip
				&& !pObj->IsInactive()
				&& pObj != pRequestingObj)
			{
			Metric rDist2 = (pObj->GetPos() - vPortPos).Length2();
			if (rDist2 < MIN_PORT_DISTANCE2 && !IsDockedOrDocking(pObj))
				return true;
			}
		}

	return false;
	}

void CTranscendenceWnd::DestroyIntroShips (void)

//	DestroyIntroShips
//
//	Destroys all ships of the same class as the POV

	{
	int i;

	CShip *pShip = g_pUniverse->GetPOV()->AsShip();
	if (pShip == NULL)
		return;

	//	Destroy all ships of the current class

	CSystem *pSystem = pShip->GetSystem();
	CShipClass *pClassToDestroy = pShip->GetClass();
	TArray<CSpaceObject *> ShipsToDestroy;
	CSpaceObject *pOtherShip = NULL;
	for (i = 0; i < pSystem->GetObjectCount(); i++)
		{
		CSpaceObject *pObj = pSystem->GetObject(i);
		CShip *pShip;
		if (pObj 
				&& !pObj->IsInactive()
				&& !pObj->IsVirtual()
				&& (pShip = pObj->AsShip()))
			{
			if (pShip->GetClass() == pClassToDestroy)
				ShipsToDestroy.Insert(pObj);
			else if (pOtherShip == NULL)
				pOtherShip = pObj;
			}
		}

	//	Destroy ships

	for (i = 0; i < ShipsToDestroy.GetCount(); i++)
		ShipsToDestroy[i]->Destroy(removedFromSystem, CDamageSource());
	}

void DoTradeSim (CUniverse &Universe, CXMLElement *pCmdLine)
	{
	ALERROR error;
	int i, j;
	CSovereign *pPlayer = Universe.FindSovereign(g_PlayerSovereignUNID);

	int iSystemSample = pCmdLine->GetAttributeIntegerBounded(CONSTLIT("count"), 1, -1, 1);
	bool bLogo = !pCmdLine->GetAttributeBool(NO_LOGO_SWITCH);

	//	For each station type we keep track of the items that it sells and the
	//	various prices that each instances charges.

	SStationData AllStations;

	//	For each item type we keep track of the stations that sell and/or
	//	buy it.

	SItemData AllItems;

	//	Generate systems for multiple games

	for (i = 0; i < iSystemSample; i++)
		{
		if (bLogo)
			printf("pass %d...\n", i+1);

		CTopologyNode *pNode = Universe.GetFirstTopologyNode();

		while (true)
			{
			//	Create the system

			CSystem *pSystem;
			if (error = Universe.CreateStarSystem(pNode, &pSystem))
				{
				printf("ERROR: Unable to create star system.\n");
				return;
				}

			//	For all active stations in the system, get their trading information

			for (j = 0; j < pSystem->GetObjectCount(); j++)
				{
				CSpaceObject *pObj = pSystem->GetObject(j);

				if (pObj && pObj->GetCategory() == CSpaceObject::catStation)
					CompileTradeData(pObj, &AllStations, &AllItems);
				}

			//	Get the next node

			CString sEntryPoint;
			pNode = pSystem->GetStargateDestination(CONSTLIT("Outbound"), &sEntryPoint);
			if (pNode == NULL || pNode->IsEndGame())
				break;

			//	Done with old system

			Universe.DestroySystem(pSystem);
			}

		Universe.Reinit();
		}

	if (bLogo)
		printf("FINAL STATISTICS\n\n");

	//	Loop over each item and output the best trading strategy

	printf("Item\tSeller\tSell Price\tBuyer\tBuy Price\tProfit\n");
	for (i = 0; i < AllItems.GetCount(); i++)
		{
		ComputeAverages(&AllItems[i]);
		OutputTradingStrategy(AllItems[i]);
		}
	}

void GenerateSnapshot (CUniverse &Universe, CXMLElement *pCmdLine)
	{
	ALERROR error;
	int i;

	//	Get some parameters

	int iInitialUpdateTime = 10;
	int iUpdateTime = pCmdLine->GetAttributeInteger(CONSTLIT("wait"));

	//	Criteria

	CString sNode = pCmdLine->GetAttribute(CONSTLIT("node"));
	CString sCriteria = pCmdLine->GetAttribute(CONSTLIT("criteria"));

	//	Output

	int cxWidth;
	int cyHeight;
	if (pCmdLine->FindAttributeInteger(CONSTLIT("size"), &cxWidth))
		{
		cyHeight = cxWidth;
		}
	else
		{
		cxWidth = 1024;
		cyHeight = 1024;
		}

	//	Paint flags

	DWORD dwPaintFlags = 0;
	if (pCmdLine->GetAttributeBool(CONSTLIT("noStars")))
		dwPaintFlags |= CSystem::VWP_NO_STAR_FIELD;

	//	Output file

	CString sFilespec = pCmdLine->GetAttribute(CONSTLIT("output"));
	if (!sFilespec.IsBlank())
		sFilespec = pathAddExtensionIfNecessary(sFilespec, CONSTLIT(".bmp"));

	//	Update context

	SSystemUpdateCtx Ctx;
	Ctx.bForceEventFiring = true;
	Ctx.bForcePainted = true;

	//	Loop over all systems until we find what we're looking for

	int iLoops = 20;
	int iNodeIndex = 0;
	CTopologyNode *pNode = Universe.GetTopologyNode(iNodeIndex);
	while (true)
		{
		//	Create the system

		CSystem *pSystem;
		if (error = Universe.CreateStarSystem(pNode, &pSystem))
			{
			printf("ERROR: Unable to create star system.\n");
			return;
			}

		//	If this is the node we want, then search

		CSpaceObject *pTarget;
		if (sNode.IsBlank() || strEquals(sNode, pNode->GetID()))
			{
			printf("Searching %s...\n", pNode->GetSystemName().GetASCIIZPointer());

			//	Set the POV

			CSpaceObject *pPOV = pSystem->GetObject(0);
			Universe.SetPOV(pPOV);
			pSystem->SetPOVLRS(pPOV);

			//	Prepare system

			Universe.UpdateExtended();
			Universe.GarbageCollectLibraryBitmaps();

			//	Update for a while

			for (i = 0; i < iInitialUpdateTime; i++)
				Universe.Update(Ctx);

			//	Compose the criteria

			CSpaceObject::Criteria Criteria;
			CSpaceObject::ParseCriteria(pPOV, sCriteria, &Criteria);

			//	Get the list of all objects in the system that match the criteria

			CSpaceObject::SCriteriaMatchCtx Ctx(Criteria);
			TArray<CSpaceObject *> Results;
			for (i = 0; i < pSystem->GetObjectCount(); i++)
				{
				CSpaceObject *pObj = pSystem->GetObject(i);
				if (pObj && pObj->MatchesCriteria(Ctx, Criteria))
					Results.Insert(pObj);
//.........这里部分代码省略.........

void GenerateSimTables (CUniverse &Universe, CXMLElement *pCmdLine)
	{
	ALERROR error;
	int i, j;

	int iSystemSample = pCmdLine->GetAttributeInteger(CONSTLIT("count"));
	if (iSystemSample == 0)
		iSystemSample = DEFAULT_SYSTEM_SAMPLE;

	//	Generate systems for multiple games

	CSymbolTable AllSystems(TRUE, TRUE);
	for (i = 0; i < iSystemSample; i++)
		{
		printf("sample %d...\n", i+1);

		CTopologyNode *pNode = Universe.GetFirstTopologyNode();

		while (true)
			{
			//	Create the system

			CSystem *pSystem;
			if (error = Universe.CreateStarSystem(pNode, &pSystem))
				{
				printf("ERROR: Unable to create star system.\n");
				return;
				}

			//	Find this system in the table.

			SystemInfo *pSystemEntry;
			if (error = AllSystems.Lookup(pNode->GetSystemName(), (CObject **)&pSystemEntry))
				{
				pSystemEntry = new SystemInfo;
				pSystemEntry->sName = pNode->GetSystemName();
				pSystemEntry->iLevel = pNode->GetLevel();
				pSystemEntry->dwSystemType = pNode->GetSystemDescUNID();
				pSystemEntry->iCount = 1;

				AllSystems.AddEntry(pSystemEntry->sName, pSystemEntry);
				}
			else
				pSystemEntry->iCount++;

			//	Add the encounters to the appropriate tables

			for (j = 0; j < pSystem->GetObjectCount(); j++)
				{
				CSpaceObject *pObj = pSystem->GetObject(j);

				if (pObj)
					{
					//	Add this encounter to the table

					CStationType *pType;
					if (pType = pObj->GetEncounterInfo())
						{
						CString sKey = strFromInt(pType->GetUNID(), false);

						//	See if we have this type in the table

						StationInfo *pEntry;
						if (error = pSystemEntry->Stations.Lookup(sKey, (CObject **)&pEntry))
							{
							pEntry = new StationInfo;
							pEntry->pType = pType;
							pEntry->iSystemCount = 0;
							pEntry->iTotalCount = 1;

							pSystemEntry->Stations.AddEntry(sKey, pEntry);
							}
						else
							pEntry->iTotalCount++;
						}

					//	Enumerate the items in this object

					CItemListManipulator ItemList(pObj->GetItemList());
					ItemList.ResetCursor();
					while (ItemList.MoveCursorForward())
						{
						const CItem &Item(ItemList.GetItemAtCursor());

						if (!Item.IsInstalled() && !Item.IsDamaged())
							{
							CString sKey = strFromInt(Item.GetType()->GetUNID(), false);

							//	Find the item type in the table

							ItemInfo *pEntry;
							if (error = pSystemEntry->Items.Lookup(sKey, (CObject **)&pEntry))
								{
								pEntry = new ItemInfo;
								pEntry->pType = Item.GetType();
								pEntry->iTotalCount = Item.GetCount();

								pSystemEntry->Items.AddEntry(sKey, pEntry);
								}
							else
//.........这里部分代码省略.........

void GenerateStationPlaceSim (CUniverse &Universe, CXMLElement *pCmdLine)
	{
	ALERROR error;
	int i, j, k;
	CSovereign *pPlayer = Universe.FindSovereign(g_PlayerSovereignUNID);

	int iSystemSample = pCmdLine->GetAttributeIntegerBounded(CONSTLIT("count"), 1, -1, 1);
	bool bLogo = !pCmdLine->GetAttributeBool(NO_LOGO_SWITCH);

	//	Generate systems for multiple games

	CSymbolTable AllSystems(TRUE, TRUE);
	for (i = 0; i < iSystemSample; i++)
		{
		if (bLogo)
			printf("pass %d...\n", i+1);

		CTopologyNode *pNode = Universe.GetFirstTopologyNode();

		while (true)
			{
			//	Create the system

			CSystem *pSystem;
			if (error = Universe.CreateStarSystem(pNode, &pSystem))
				{
				printf("ERROR: Unable to create star system.\n");
				return;
				}

			//	Find this system in the table.

			SPSimSystemInfo *pSystemEntry;
			if (error = AllSystems.Lookup(pNode->GetSystemName(), (CObject **)&pSystemEntry))
				{
				pSystemEntry = new SPSimSystemInfo;
				pSystemEntry->sName = pNode->GetSystemName();
				pSystemEntry->iLevel = pNode->GetLevel();
				pSystemEntry->dwSystemType = pNode->GetSystemTypeUNID();
				pSystemEntry->iCount = 1;

				for (j = 0; j < DIST_BUCKET_COUNT; j++)
					pSystemEntry->iEnemies[j] = 0;

				AllSystems.AddEntry(pSystemEntry->sName, pSystemEntry);
				}
			else
				pSystemEntry->iCount++;

			//	For all active stations in the system, count the number of enemy stations
			//	within certain distance buckets

			for (j = 0; j < pSystem->GetObjectCount(); j++)
				{
				CSpaceObject *pObj = pSystem->GetObject(j);

				//	Find any objects that are lootable by the player

				if (pObj
						&& pObj->GetCategory() == CSpaceObject::catStation
						&& pObj->CanAttack())
					{
					//	Count to see how many enemy stations are in range

					for (k = 0; k < pSystem->GetObjectCount(); k++)
						{
						CSpaceObject *pEnemy = pSystem->GetObject(k);
						if (pEnemy
								&& pEnemy->GetCategory() == CSpaceObject::catStation
								&& pEnemy->CanAttack()
								&& (pEnemy->IsEnemy(pObj) || pObj->IsEnemy(pEnemy)))
							{
							Metric rDist = pObj->GetDistance(pEnemy);
							int iDist = DistToBucketIndex(rDist);
							if (iDist != -1)
								{
								ASSERT(iDist < DIST_BUCKET_COUNT && iDist >= 0);
								pSystemEntry->iEnemies[iDist]++;

								int iLSDist = (int)((rDist / LIGHT_SECOND) + 0.5);
								if (iLSDist < 30)
									{
									printf("%s: %s (%x) and %s (%x) within %d ls\n",
											pSystem->GetName().GetASCIIZPointer(),
											pObj->GetNounPhrase().GetASCIIZPointer(),
											pObj->GetID(),
											pEnemy->GetNounPhrase().GetASCIIZPointer(),
											pEnemy->GetID(),
											iLSDist);
									}
								}
							}
						}
					}
				}

			//	Get the next node

			CString sEntryPoint;
			pNode = pSystem->GetStargateDestination(CONSTLIT("Outbound"), &sEntryPoint);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
		CSpaceObject *pTarget;
		if (sNode.IsBlank() || strEquals(sNode, pNode->GetID()))
			{
			printf("Searching %s...\n", pNode->GetSystemName().GetASCIIZPointer());

			//	Set the POV

			CSpaceObject *pPOV = pSystem->GetObject(0);
			Universe.SetPOV(pPOV);
			pSystem->SetPOVLRS(pPOV);

			//	Prepare system

			Universe.UpdateExtended();
			Universe.GarbageCollectLibraryBitmaps();

			//	Update for a while

			for (i = 0; i < iInitialUpdateTime; i++)
				{
				Universe.Update(Ctx);
				Universe.PaintPOV(Output, rcViewport, 0);
				}

			//	Compose the criteria

			CSpaceObject::Criteria Criteria;
			CSpaceObject::ParseCriteria(pPOV, sCriteria, &Criteria);

			//	Get the list of all objects in the system that match the criteria

			CSpaceObject::SCriteriaMatchCtx Ctx(Criteria);
			TArray<CSpaceObject *> Results;
			for (i = 0; i < pSystem->GetObjectCount(); i++)
				{
				CSpaceObject *pObj = pSystem->GetObject(i);
				if (pObj && pObj->MatchesCriteria(Ctx, Criteria))
					Results.Insert(pObj);
				}

			//	Pick the appropriate object from the list

			if (Results.GetCount() == 0)
				pTarget = NULL;
			else if (Criteria.bNearestOnly || Criteria.bFarthestOnly)
				pTarget = Ctx.pBestObj;
			else
				pTarget = Results[mathRandom(0, Results.GetCount() - 1)];
			}
		else
			pTarget = NULL;

		//	If we found the target, then output

		if (pTarget)
			{
			Universe.SetPOV(pTarget);

			//	Wait a bit
			//
			//	NOTE: After we update, pTarget could be invalid (i.e., destroyed)
			//	so we can't use it again.

			CString sTargetName = pTarget->GetNounPhrase(0);

			for (i = 0; i < iUpdateTime; i++)

void CDockingPorts::UpdateAll (CSpaceObject *pOwner)

//	UpdateAll
//
//	UpdateAll 

	{
	int i, j;

	for (i = 0; i < m_iPortCount; i++)
		{
		if (m_pPort[i].iStatus == psDocking)
			{
			CShip *pShip = m_pPort[i].pObj->AsShip();

			ASSERT(pShip);
			if (pShip == NULL)
				continue;

			CVector vDest = pOwner->GetPos() + m_pPort[i].vPos;
			CVector vDestVel = pOwner->GetVel();

			//	Figure out how far we are from where we want to be

			CVector vDelta = vDest - pShip->GetPos();

			//	Figure out if we're aligned

			int iFinalRotation = pShip->AlignToRotationAngle(m_pPort[i].iRotation);

			//	If the docking object is within the appropriate threshold 
			//	of the port, then complete the docking sequence.

			Metric rDelta2 = vDelta.Length2();
			if (rDelta2 < DOCKING_THRESHOLD2 
					&& (pShip == g_pUniverse->GetPlayer() || iFinalRotation == pShip->GetRotation()))
				{
				pShip->Place(vDest);
				pShip->UnfreezeControls();
				IShipController *pController = pShip->GetController();
				pController->SetManeuver(IShipController::NoRotation);

				m_pPort[i].iStatus = psInUse;

				//	Tell the owner that somone has docked with it first
				//	(We do this because sometimes we want to handle stuff
				//	in OnObjDocked before we show the player a dock screen)

				if (pOwner && pOwner->HasOnObjDockedEvent() && pOwner != pShip)
					pOwner->OnObjDocked(pShip, pOwner);

				//	Dock

				pShip->OnDocked(pOwner);

				//	Tell all objects in the system that a ship has docked

				CSystem *pSystem = pShip->GetSystem();
				for (j = 0; j < pSystem->GetObjectCount(); j++)
					{
					CSpaceObject *pObj = pSystem->GetObject(j);

					if (pObj && pObj->HasOnObjDockedEvent() && pObj != pShip && pObj != pOwner)
						pObj->OnObjDocked(pShip, pOwner);
					}
				}

			//	Otherwise accelerate the ship towards the docking port

			else
				{
				Metric rMaxSpeed = pShip->GetMaxSpeed();
				Metric rMinSpeed = rMaxSpeed / 10.0;

				//	We slow down as we get closer

				Metric rSpeed;
				if (rDelta2 < FINAL_DOCKING2)
					rSpeed = rMinSpeed;
				else if (rDelta2 < FINAL_APPROACH2)
					{
					Metric rSpeedRange = rMaxSpeed - rMinSpeed;
					Metric rDelta = sqrt(rDelta2);
					rSpeed = rMinSpeed + (rSpeedRange * (rDelta - FINAL_DOCKING) / (FINAL_APPROACH - FINAL_DOCKING));
					}
				else
					rSpeed = rMaxSpeed;

				//	Figure out the ideal velocity vector that we want to
				//	be following.

				CVector vIdealVel = vDelta.Normal() * rSpeed;

				//	Calculate the delta v that we need

				CVector vDeltaV = vIdealVel - pShip->GetVel();

				//	Rotate

				if (pShip != g_pUniverse->GetPlayer())
//.........这里部分代码省略.........