Bazaar developer reference

    CvWonderProductionAI::ChooseWonderForGreatEngineer(bool, int &, CvCity *&)

    Defined in
    CvWonderProductionAI.cpp, line 361
    Class
    CvWonderProductionAI
    Hook name
    CivHooks::CvWonderProductionAI_ChooseWonderForGreatEngineer

    Hooks

    static bool BeforeCvWonderProductionAI_ChooseWonderForGreatEngineer(CvWonderProductionAI* self, bool bUseAsyncRandom, int& iWonderWeight, CvCity*& pCityToBuildAt, BuildingTypes& result);static void AfterCvWonderProductionAI_ChooseWonderForGreatEngineer(CvWonderProductionAI* self, bool bUseAsyncRandom, int& iWonderWeight, CvCity*& pCityToBuildAt, BuildingTypes& result);static BuildingTypes ReplaceCvWonderProductionAI_ChooseWonderForGreatEngineer(BuildingTypes (*original)(CvWonderProductionAI*, bool, int&, CvCity*&), CvWonderProductionAI* self, bool bUseAsyncRandom, int& iWonderWeight, CvCity*& pCityToBuildAt);CivRegisterBefore<CivHooks::CvWonderProductionAI_ChooseWonderForGreatEngineer>(host, &BeforeCvWonderProductionAI_ChooseWonderForGreatEngineer);CivRegisterAfter<CivHooks::CvWonderProductionAI_ChooseWonderForGreatEngineer>(host, &AfterCvWonderProductionAI_ChooseWonderForGreatEngineer);CivRegisterReplace<CivHooks::CvWonderProductionAI_ChooseWonderForGreatEngineer>(host, &ReplaceCvWonderProductionAI_ChooseWonderForGreatEngineer);

    Code

    360/// Recommend highest-weighted wonder and what city to build it at361BuildingTypes CvWonderProductionAI::ChooseWonderForGreatEngineer(bool bUseAsyncRandom, int& iWonderWeight, CvCity*& pCityToBuildAt)362{363	int iBldgLoop;364	int iWeight;365	int iCityLoop;366	RandomNumberDelegate fcn;367	BuildingTypes eSelection;368369	pCityToBuildAt = 0;370	iWonderWeight = 0;371372	// Use the asynchronous random number generate if "no random" is set373	if (bUseAsyncRandom)374	{375		fcn = MakeDelegate(&GC.getGame(), &CvGame::getAsyncRandNum);376	}377	else378	{379		fcn = MakeDelegate(&GC.getGame(), &CvGame::getJonRandNum);380	}381382	// Reset list of all the possible wonders383	m_Buildables.clear();384385	// Guess which city will be producing this386	CvCity* pWonderCity = m_pPlayer->GetCitySpecializationAI()->GetWonderBuildCity();387	if (pWonderCity == NULL)388	{389		pWonderCity = m_pPlayer->firstCity(&iCityLoop);390	}391392	CvAssertMsg(pWonderCity, "Trying to choose the next wonder to build and the player has no cities!");393	if (pWonderCity == NULL)394		return NO_BUILDING;395396	// Loop through adding the available wonders397	for (iBldgLoop = 0; iBldgLoop < GC.GetGameBuildings()->GetNumBuildings(); iBldgLoop++)398	{399		const BuildingTypes eBuilding = static_cast<BuildingTypes>(iBldgLoop);400		CvBuildingEntry* pkBuildingInfo = m_pBuildings->GetEntry(eBuilding);401		if (pkBuildingInfo)402		{403			CvBuildingEntry& kBuilding = *pkBuildingInfo;404			// Make sure this wonder can be built now405			if (IsWonder(kBuilding) && HaveCityToBuild((BuildingTypes)iBldgLoop))406			{407				iWeight = m_WonderAIWeights.GetWeight((UnitTypes)iBldgLoop); // use raw weight since this wonder is essentially free408				// Don't build the UN if you aren't going for the diplo victory and have a chance of winning it409				if(pkBuildingInfo->IsDiplomaticVoting())410				{411					int iVotesNeededToWin = GC.getGame().GetVotesNeededForDiploVictory();412					int iSecuredVotes = 0;413					TeamTypes myTeamID = m_pPlayer->getTeam();414					PlayerTypes myPlayerID = m_pPlayer->GetID();415416					// Loop through Players to see if they'll vote for this player417					PlayerTypes eLoopPlayer;418					TeamTypes eLoopTeam;419					for(int iPlayerLoop = 0; iPlayerLoop < MAX_CIV_PLAYERS; iPlayerLoop++)420					{421						eLoopPlayer = (PlayerTypes) iPlayerLoop;422423						if(GET_PLAYER(eLoopPlayer).isAlive())424						{425							eLoopTeam = GET_PLAYER(eLoopPlayer).getTeam();426427							// Liberated?428							if(GET_TEAM(eLoopTeam).GetLiberatedByTeam() == myTeamID)429							{430								iSecuredVotes++;431							}432433							// Minor civ?434							else if(GET_PLAYER(eLoopPlayer).isMinorCiv())435							{436								// Best Relations?437								if(GET_PLAYER(eLoopPlayer).GetMinorCivAI()->GetAlly() == myPlayerID)438								{439									iSecuredVotes++;440								}441							}442						}443					}444445					int iNumberOfPlayersWeNeedToBuyOff = MAX(0, iVotesNeededToWin - iSecuredVotes);446447					if(!m_pPlayer->GetDiplomacyAI() || !m_pPlayer->GetDiplomacyAI()->IsGoingForDiploVictory() || m_pPlayer->GetTreasury()->GetGold() < iNumberOfPlayersWeNeedToBuyOff * 500 )448					{449						iWeight = 0;450					}451				}452				// ??? do we want to weight it more for more expensive wonders?453				m_Buildables.push_back(iBldgLoop, iWeight);454			}455		}456	}457458	// Sort items and grab the first one459	if(m_Buildables.size() > 0)460	{461		m_Buildables.SortItems();462		LogPossibleWonders();463464		if(m_Buildables.GetTotalWeight() > 0)465		{466			int iNumChoices = 1;467			eSelection = (BuildingTypes)m_Buildables.ChooseFromTopChoices(iNumChoices, &fcn, "Choosing wonder from Top Choices");468			iWonderWeight = m_Buildables.GetTotalWeight();469470			// first check if the wonder city can build it471			if (pWonderCity->canConstruct(eSelection))472			{473				pCityToBuildAt = pWonderCity;474			}475			// if it can't then check for other cities476			else477			{478				CvCity* pLoopCity;479				int iLoop;480				for(pLoopCity = m_pPlayer->firstCity(&iLoop); pLoopCity != NULL; pLoopCity = m_pPlayer->nextCity(&iLoop))481				{482					if(pLoopCity->canConstruct(eSelection))483					{484						pCityToBuildAt = pLoopCity;485						break; // todo: find the best city 486					}487				}488			}489490			return eSelection;491		}492493		// Nothing with any weight494		else495		{496			return NO_BUILDING;497		}498	}499500	// Unless we didn't find any501	else502	{503		return NO_BUILDING;504	}505}

    Calls

    Called by