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377 lines
10 KiB
C++
377 lines
10 KiB
C++
/*
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* ObstaclePlacer.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "../mapObjects/CObjectClassesHandler.h"
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#include "ObstaclePlacer.h"
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#include "ObjectManager.h"
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#include "TreasurePlacer.h"
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#include "RockPlacer.h"
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#include "WaterRoutes.h"
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#include "WaterProxy.h"
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#include "RoadPlacer.h"
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#include "RiverPlacer.h"
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#include "RmgMap.h"
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#include "CMapGenerator.h"
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#include "../CRandomGenerator.h"
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#include "Functions.h"
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#include "../mapping/CMapEditManager.h"
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void ObstacleProxy::collectPossibleObstacles(const Terrain & terrain)
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{
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//get all possible obstacles for this terrain
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for(auto primaryID : VLC->objtypeh->knownObjects())
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{
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for(auto secondaryID : VLC->objtypeh->knownSubObjects(primaryID))
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{
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auto handler = VLC->objtypeh->getHandlerFor(primaryID, secondaryID);
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if(handler->isStaticObject())
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{
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for(auto temp : handler->getTemplates())
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{
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if(temp.canBePlacedAt(terrain) && temp.getBlockMapOffset().valid())
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obstaclesBySize[temp.getBlockedOffsets().size()].push_back(temp);
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}
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}
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}
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}
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for(auto o : obstaclesBySize)
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{
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possibleObstacles.push_back(o);
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}
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boost::sort(possibleObstacles, [](const ObstaclePair &p1, const ObstaclePair &p2) -> bool
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{
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return p1.first > p2.first; //bigger obstacles first
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});
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}
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std::pair<bool, bool> ObstacleProxy::verifyCoverage(const int3 & t) const
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{
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std::pair<bool, bool> result(false, false);
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if(blockedArea.contains(t))
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result.first = true;
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return result;
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}
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void ObstacleProxy::placeObject(CMapEditManager * manager, rmg::Object & object)
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{
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for(auto * instance : object.instances())
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{
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manager->insertObject(&instance->object());
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}
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//manager->placeObject(*objIter->first, false, false);
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}
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int ObstacleProxy::getWeightedObjects(const int3 & tile, const CMap * map, CRandomGenerator & rand, std::list<rmg::Object> & allObjects, std::vector<std::pair<rmg::Object*, int3>> & weightedObjects)
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{
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int maxWeight = std::numeric_limits<int>::min();
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for(int i = 0; i < possibleObstacles.size(); ++i)
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{
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if(!possibleObstacles[i].first)
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continue;
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auto shuffledObstacles = possibleObstacles[i].second;
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RandomGeneratorUtil::randomShuffle(shuffledObstacles, rand);
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for(auto & temp : shuffledObstacles)
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{
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auto handler = VLC->objtypeh->getHandlerFor(temp.id, temp.subid);
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auto obj = handler->create(temp);
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allObjects.emplace_back(*obj);
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rmg::Object * rmgObject = &allObjects.back();
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for(auto & offset : obj->getBlockedOffsets())
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{
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rmgObject->setPosition(tile - offset);
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if(!map->isInTheMap(rmgObject->getPosition()))
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continue;
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if(!rmgObject->getArea().getSubarea([map](const int3 & t)
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{
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return !map->isInTheMap(t);
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}).empty())
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continue;
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if(isProhibited(rmgObject->getArea()))
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continue;
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int coverageBlocked = 0;
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int coveragePossible = 0;
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//do not use area intersection in optimization purposes
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for(auto & t : rmgObject->getArea().getTilesVector())
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{
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auto coverage = verifyCoverage(t);
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if(coverage.first)
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++coverageBlocked;
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if(coverage.second)
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++coveragePossible;
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}
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int coverageOverlap = possibleObstacles[i].first - coverageBlocked - coveragePossible;
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int weight = possibleObstacles[i].first + coverageBlocked - coverageOverlap * possibleObstacles[i].first;
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assert(coverageOverlap >= 0);
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if(weight > maxWeight)
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{
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weightedObjects.clear();
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maxWeight = weight;
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weightedObjects.emplace_back(rmgObject, rmgObject->getPosition());
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if(weight > 0)
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break;
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}
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else if(weight == maxWeight)
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weightedObjects.emplace_back(rmgObject, rmgObject->getPosition());
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}
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}
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if(maxWeight > 0)
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break;
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}
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return maxWeight;
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}
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void ObstacleProxy::placeObstacles(CMap * map, CRandomGenerator & rand)
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{
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//reverse order, since obstacles begin in bottom-right corner, while the map coordinates begin in top-left
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auto blockedTiles = blockedArea.getTilesVector();
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int tilePos = 0;
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std::set<CGObjectInstance*> objs;
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while(!blockedArea.empty() && tilePos < blockedArea.getTilesVector().size())
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{
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auto tile = blockedArea.getTilesVector()[tilePos];
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std::list<rmg::Object> allObjects;
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std::vector<std::pair<rmg::Object*, int3>> weightedObjects;
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int maxWeight = getWeightedObjects(tile, map, rand, allObjects, weightedObjects);
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if(weightedObjects.empty())
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{
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tilePos += 1;
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continue;
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}
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auto objIter = RandomGeneratorUtil::nextItem(weightedObjects, rand);
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objIter->first->setPosition(objIter->second);
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for (auto* instance : objIter->first->instances())
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{
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objs.insert(&instance->object());
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}
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blockedArea.subtract(objIter->first->getArea());
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tilePos = 0;
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postProcess(*objIter->first);
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if(maxWeight < 0)
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logGlobal->warn("Placed obstacle with negative weight at %s", objIter->second.toString());
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for(auto & o : allObjects)
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{
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if(&o != objIter->first)
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o.clear();
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}
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}
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map->getEditManager()->insertObjects(objs); //insert as one operation - for undo purposes
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}
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void ObstacleProxy::postProcess(const rmg::Object & object)
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{
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//river processing
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/*if(riverManager)
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{
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if(object.instances().front()->object().typeName == "mountain")
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riverManager->riverSource().unite(object.>getArea());
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if(object.instances().front()->object().typeName == "lake")
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riverManager->riverSink().unite(oobject.getArea());
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}*/
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}
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bool ObstacleProxy::isProhibited(const rmg::Area & objArea) const
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{
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/*if(prohibitedArea.overlap(rmgObject->getArea()))
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continue;
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if(!totalArea.contains(rmgObject->getArea()))
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continue;*/
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return false;
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}
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void ObstaclePlacer::process()
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{
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auto * manager = zone.getModificator<ObjectManager>();
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if(!manager)
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return;
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auto * riverManager = zone.getModificator<RiverPlacer>();
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typedef std::vector<ObjectTemplate> ObstacleVector;
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//obstacleVector possibleObstacles;
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std::map<int, ObstacleVector> obstaclesBySize;
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typedef std::pair<int, ObstacleVector> ObstaclePair;
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std::vector<ObstaclePair> possibleObstacles;
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//get all possible obstacles for this terrain
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for(auto primaryID : VLC->objtypeh->knownObjects())
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{
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for(auto secondaryID : VLC->objtypeh->knownSubObjects(primaryID))
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{
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auto handler = VLC->objtypeh->getHandlerFor(primaryID, secondaryID);
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if(handler->isStaticObject())
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{
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for(auto temp : handler->getTemplates())
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{
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if(temp.canBePlacedAt(zone.getTerrainType()) && temp.getBlockMapOffset().valid())
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obstaclesBySize[temp.getBlockedOffsets().size()].push_back(temp);
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}
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}
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}
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}
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for(auto o : obstaclesBySize)
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{
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possibleObstacles.push_back(o);
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}
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boost::sort(possibleObstacles, [](const ObstaclePair &p1, const ObstaclePair &p2) -> bool
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{
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return p1.first > p2.first; //bigger obstacles first
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});
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auto blockedArea = zone.area().getSubarea([this](const int3 & t)
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{
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return map.shouldBeBlocked(t);
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});
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blockedArea.subtract(zone.areaUsed());
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zone.areaPossible().subtract(blockedArea);
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auto prohibitedArea = zone.freePaths() + zone.areaUsed() + manager->getVisitableArea();
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//reverse order, since obstacles begin in bottom-right corner, while the map coordinates begin in top-left
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auto blockedTiles = blockedArea.getTilesVector();
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int tilePos = 0;
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while(!blockedArea.empty() && tilePos < blockedArea.getTilesVector().size())
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{
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auto tile = blockedArea.getTilesVector()[tilePos];
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std::list<rmg::Object> allObjects;
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std::vector<std::pair<rmg::Object*, int3>> weightedObjects; //obj + position
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int maxWeight = std::numeric_limits<int>::min();
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for(int i = 0; i < possibleObstacles.size(); ++i)
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{
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if(!possibleObstacles[i].first)
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continue;
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auto shuffledObstacles = possibleObstacles[i].second;
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RandomGeneratorUtil::randomShuffle(shuffledObstacles, generator.rand);
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for(auto & temp : shuffledObstacles)
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{
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auto handler = VLC->objtypeh->getHandlerFor(temp.id, temp.subid);
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auto obj = handler->create(temp);
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allObjects.emplace_back(*obj);
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rmg::Object * rmgObject = &allObjects.back();
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for(auto & offset : obj->getBlockedOffsets())
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{
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rmgObject->setPosition(tile - offset);
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if(!map.isOnMap(rmgObject->getPosition()))
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continue;
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if(!rmgObject->getArea().getSubarea([this](const int3 & t)
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{
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return !map.isOnMap(t);
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}).empty())
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continue;
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if(prohibitedArea.overlap(rmgObject->getArea()))
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continue;
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if(!zone.area().contains(rmgObject->getArea()))
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continue;
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int coverageBlocked = 0;
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int coveragePossible = 0;
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//do not use area intersection in optimization purposes
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for(auto & t : rmgObject->getArea().getTilesVector())
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{
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if(map.shouldBeBlocked(t))
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++coverageBlocked;
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if(zone.areaPossible().contains(t))
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++coveragePossible;
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}
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int coverageOverlap = possibleObstacles[i].first - coverageBlocked - coveragePossible;
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int weight = possibleObstacles[i].first + coverageBlocked - coverageOverlap * possibleObstacles[i].first;
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assert(coverageOverlap >= 0);
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if(weight > maxWeight)
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{
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weightedObjects.clear();
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maxWeight = weight;
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weightedObjects.emplace_back(rmgObject, rmgObject->getPosition());
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if(weight > 0)
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break;
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}
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else if(weight == maxWeight)
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weightedObjects.emplace_back(rmgObject, rmgObject->getPosition());
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}
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}
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if(maxWeight > 0)
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break;
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}
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if(weightedObjects.empty())
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{
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tilePos += 1;
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continue;
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}
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auto objIter = RandomGeneratorUtil::nextItem(weightedObjects, generator.rand);
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objIter->first->setPosition(objIter->second);
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manager->placeObject(*objIter->first, false, false);
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blockedArea.subtract(objIter->first->getArea());
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tilePos = 0;
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//river processing
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if(riverManager)
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{
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if(objIter->first->instances().front()->object().typeName == "mountain")
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riverManager->riverSource().unite(objIter->first->getArea());
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if(objIter->first->instances().front()->object().typeName == "lake")
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riverManager->riverSink().unite(objIter->first->getArea());
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}
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if(maxWeight < 0)
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logGlobal->warn("Placed obstacle with negative weight at %s", objIter->second.toString());
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for(auto & o : allObjects)
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{
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if(&o != objIter->first)
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o.clear();
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}
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}
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}
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void ObstaclePlacer::init()
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{
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DEPENDENCY(ObjectManager);
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DEPENDENCY(TreasurePlacer);
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DEPENDENCY(WaterRoutes);
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DEPENDENCY(WaterProxy);
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DEPENDENCY(RoadPlacer);
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DEPENDENCY_ALL(RockPlacer);
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}
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