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https://github.com/vcmi/vcmi.git
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639 lines
14 KiB
C++
639 lines
14 KiB
C++
/*
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* CBonusSystemNode.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 "CBonusSystemNode.h"
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#include "Limiters.h"
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#include "Updaters.h"
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#include "Propagators.h"
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VCMI_LIB_NAMESPACE_BEGIN
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std::atomic<int64_t> CBonusSystemNode::treeChanged(1);
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constexpr bool CBonusSystemNode::cachingEnabled = true;
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std::shared_ptr<Bonus> CBonusSystemNode::getLocalBonus(const CSelector & selector)
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{
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auto ret = bonuses.getFirst(selector);
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if(ret)
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return ret;
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return nullptr;
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}
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std::shared_ptr<const Bonus> CBonusSystemNode::getFirstBonus(const CSelector & selector) const
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{
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auto ret = bonuses.getFirst(selector);
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if(ret)
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return ret;
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TCNodes lparents;
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getParents(lparents);
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for(const CBonusSystemNode *pname : lparents)
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{
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ret = pname->getFirstBonus(selector);
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if (ret)
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return ret;
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}
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return nullptr;
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}
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void CBonusSystemNode::getParents(TCNodes & out) const /*retrieves list of parent nodes (nodes to inherit bonuses from) */
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{
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for(const auto * elem : parentsToInherit)
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out.insert(elem);
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}
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void CBonusSystemNode::getAllParents(TCNodes & out) const //retrieves list of parent nodes (nodes to inherit bonuses from)
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{
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for(auto * parent : parentsToInherit)
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{
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out.insert(parent);
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parent->getAllParents(out);
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}
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}
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void CBonusSystemNode::getAllBonusesRec(BonusList &out, const CSelector & selector) const
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{
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//out has been reserved sufficient capacity at getAllBonuses() call
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BonusList beforeUpdate;
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TCNodes lparents;
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getAllParents(lparents);
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if(!lparents.empty())
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{
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//estimate on how many bonuses are missing yet - must be positive
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beforeUpdate.reserve(std::max(out.capacity() - out.size(), bonuses.size()));
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}
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else
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{
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beforeUpdate.reserve(bonuses.size()); //at most all local bonuses
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}
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for(const auto * parent : lparents)
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{
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parent->getAllBonusesRec(beforeUpdate, selector);
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}
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bonuses.getAllBonuses(beforeUpdate);
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for(const auto & b : beforeUpdate)
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{
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//We should not run updaters on non-selected bonuses
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auto updated = selector(b.get()) && b->updater
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? getUpdatedBonus(b, b->updater)
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: b;
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//do not add bonus with updater
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bool bonusExists = false;
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for(const auto & bonus : out)
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{
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if (bonus == updated)
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bonusExists = true;
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if (bonus->updater && bonus->updater == updated->updater)
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bonusExists = true;
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}
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if (!bonusExists)
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out.push_back(updated);
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}
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}
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TConstBonusListPtr CBonusSystemNode::getAllBonuses(const CSelector &selector, const CSelector &limit, const std::string &cachingStr) const
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{
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if (CBonusSystemNode::cachingEnabled)
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{
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// Exclusive access for one thread
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boost::lock_guard<boost::mutex> lock(sync);
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// If the bonus system tree changes(state of a single node or the relations to each other) then
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// cache all bonus objects. Selector objects doesn't matter.
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if (cachedLast != treeChanged)
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{
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BonusList allBonuses;
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allBonuses.reserve(cachedBonuses.capacity()); //we assume we'll get about the same number of bonuses
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cachedBonuses.clear();
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cachedRequests.clear();
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getAllBonusesRec(allBonuses, Selector::all);
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limitBonuses(allBonuses, cachedBonuses);
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cachedBonuses.stackBonuses();
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cachedLast = treeChanged;
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}
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// If a bonus system request comes with a caching string then look up in the map if there are any
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// pre-calculated bonus results. Limiters can't be cached so they have to be calculated.
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if(!cachingStr.empty())
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{
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auto it = cachedRequests.find(cachingStr);
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if(it != cachedRequests.end())
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{
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//Cached list contains bonuses for our query with applied limiters
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return it->second;
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}
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}
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//We still don't have the bonuses (didn't returned them from cache)
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//Perform bonus selection
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auto ret = std::make_shared<BonusList>();
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cachedBonuses.getBonuses(*ret, selector, limit);
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// Save the results in the cache
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if(!cachingStr.empty())
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cachedRequests[cachingStr] = ret;
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return ret;
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}
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else
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{
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return getAllBonusesWithoutCaching(selector, limit);
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}
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}
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TConstBonusListPtr CBonusSystemNode::getAllBonusesWithoutCaching(const CSelector &selector, const CSelector &limit) const
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{
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auto ret = std::make_shared<BonusList>();
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// Get bonus results without caching enabled.
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BonusList beforeLimiting;
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BonusList afterLimiting;
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getAllBonusesRec(beforeLimiting, selector);
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limitBonuses(beforeLimiting, afterLimiting);
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afterLimiting.getBonuses(*ret, selector, limit);
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ret->stackBonuses();
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return ret;
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}
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std::shared_ptr<Bonus> CBonusSystemNode::getUpdatedBonus(const std::shared_ptr<Bonus> & b, const TUpdaterPtr & updater) const
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{
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assert(updater);
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return updater->createUpdatedBonus(b, * this);
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}
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CBonusSystemNode::CBonusSystemNode(bool isHypotetic):
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bonuses(true),
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exportedBonuses(true),
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nodeType(UNKNOWN),
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cachedLast(0),
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isHypotheticNode(isHypotetic)
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{
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}
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CBonusSystemNode::CBonusSystemNode(ENodeTypes NodeType):
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bonuses(true),
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exportedBonuses(true),
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nodeType(NodeType),
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cachedLast(0),
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isHypotheticNode(false)
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{
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}
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CBonusSystemNode::~CBonusSystemNode()
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{
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detachFromAll();
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if(!children.empty())
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{
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while(!children.empty())
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children.front()->detachFrom(*this);
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}
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}
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void CBonusSystemNode::attachTo(CBonusSystemNode & parent)
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{
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assert(!vstd::contains(parentsToPropagate, &parent));
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parentsToPropagate.push_back(&parent);
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attachToSource(parent);
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if(!isHypothetic())
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{
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if(!parent.actsAsBonusSourceOnly())
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newRedDescendant(parent);
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parent.newChildAttached(*this);
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}
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CBonusSystemNode::treeHasChanged();
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}
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void CBonusSystemNode::attachToSource(const CBonusSystemNode & parent)
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{
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assert(!vstd::contains(parentsToInherit, &parent));
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parentsToInherit.push_back(&parent);
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if(!isHypothetic())
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{
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if(parent.actsAsBonusSourceOnly())
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parent.newRedDescendant(*this);
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}
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CBonusSystemNode::treeHasChanged();
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}
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void CBonusSystemNode::detachFrom(CBonusSystemNode & parent)
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{
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assert(vstd::contains(parentsToPropagate, &parent));
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if(!isHypothetic())
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{
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if(!parent.actsAsBonusSourceOnly())
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removedRedDescendant(parent);
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}
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detachFromSource(parent);
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if (vstd::contains(parentsToPropagate, &parent))
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{
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parentsToPropagate -= &parent;
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}
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else
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{
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logBonus->error("Error on Detach. Node %s (nodeType=%d) has not parent %s (nodeType=%d)"
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, nodeShortInfo(), nodeType, parent.nodeShortInfo(), parent.nodeType);
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}
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if(!isHypothetic())
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{
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parent.childDetached(*this);
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}
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CBonusSystemNode::treeHasChanged();
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}
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void CBonusSystemNode::detachFromSource(const CBonusSystemNode & parent)
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{
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assert(vstd::contains(parentsToInherit, &parent));
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if(!isHypothetic())
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{
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if(parent.actsAsBonusSourceOnly())
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parent.removedRedDescendant(*this);
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}
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if (vstd::contains(parentsToInherit, &parent))
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{
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parentsToInherit -= &parent;
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}
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else
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{
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logBonus->error("Error on Detach. Node %s (nodeType=%d) has not parent %s (nodeType=%d)"
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, nodeShortInfo(), nodeType, parent.nodeShortInfo(), parent.nodeType);
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}
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CBonusSystemNode::treeHasChanged();
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}
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void CBonusSystemNode::removeBonusesRecursive(const CSelector & s)
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{
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removeBonuses(s);
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for(CBonusSystemNode * child : children)
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child->removeBonusesRecursive(s);
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}
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void CBonusSystemNode::reduceBonusDurations(const CSelector &s)
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{
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BonusList bl;
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exportedBonuses.getBonuses(bl, s, Selector::all);
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for(const auto & b : bl)
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{
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b->turnsRemain--;
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if(b->turnsRemain <= 0)
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removeBonus(b);
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}
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for(CBonusSystemNode *child : children)
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child->reduceBonusDurations(s);
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}
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void CBonusSystemNode::addNewBonus(const std::shared_ptr<Bonus>& b)
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{
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//turnsRemain shouldn't be zero for following durations
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if(Bonus::NTurns(b.get()) || Bonus::NDays(b.get()) || Bonus::OneWeek(b.get()))
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{
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assert(b->turnsRemain);
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}
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assert(!vstd::contains(exportedBonuses, b));
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exportedBonuses.push_back(b);
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exportBonus(b);
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CBonusSystemNode::treeHasChanged();
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}
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void CBonusSystemNode::accumulateBonus(const std::shared_ptr<Bonus>& b)
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{
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auto bonus = exportedBonuses.getFirst(Selector::typeSubtypeValueType(b->type, b->subtype, b->valType)); //only local bonuses are interesting
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if(bonus)
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bonus->val += b->val;
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else
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addNewBonus(std::make_shared<Bonus>(*b)); //duplicate needed, original may get destroyed
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}
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void CBonusSystemNode::removeBonus(const std::shared_ptr<Bonus>& b)
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{
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exportedBonuses -= b;
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if(b->propagator)
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unpropagateBonus(b);
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else
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bonuses -= b;
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CBonusSystemNode::treeHasChanged();
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}
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void CBonusSystemNode::removeBonuses(const CSelector & selector)
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{
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BonusList toRemove;
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exportedBonuses.getBonuses(toRemove, selector, Selector::all);
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for(const auto & bonus : toRemove)
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removeBonus(bonus);
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}
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bool CBonusSystemNode::actsAsBonusSourceOnly() const
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{
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switch(nodeType)
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{
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case CREATURE:
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case ARTIFACT:
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case ARTIFACT_INSTANCE:
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return true;
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default:
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return false;
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}
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}
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void CBonusSystemNode::propagateBonus(const std::shared_ptr<Bonus> & b, const CBonusSystemNode & source)
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{
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if(b->propagator->shouldBeAttached(this))
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{
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auto propagated = b->propagationUpdater
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? source.getUpdatedBonus(b, b->propagationUpdater)
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: b;
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bonuses.push_back(propagated);
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logBonus->trace("#$# %s #propagated to# %s", propagated->Description(), nodeName());
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}
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TNodes lchildren;
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getRedChildren(lchildren);
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for(CBonusSystemNode *pname : lchildren)
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pname->propagateBonus(b, source);
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}
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void CBonusSystemNode::unpropagateBonus(const std::shared_ptr<Bonus> & b)
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{
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if(b->propagator->shouldBeAttached(this))
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{
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if (bonuses -= b)
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logBonus->trace("#$# %s #is no longer propagated to# %s", b->Description(), nodeName());
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else
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logBonus->warn("Attempt to remove #$# %s, which is not propagated to %s", b->Description(), nodeName());
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bonuses.remove_if([b](const auto & bonus)
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{
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if (bonus->propagationUpdater && bonus->propagationUpdater == b->propagationUpdater)
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{
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treeHasChanged();
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return true;
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}
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return false;
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});
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}
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TNodes lchildren;
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getRedChildren(lchildren);
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for(CBonusSystemNode *pname : lchildren)
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pname->unpropagateBonus(b);
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}
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void CBonusSystemNode::newChildAttached(CBonusSystemNode & child)
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{
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assert(!vstd::contains(children, &child));
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children.push_back(&child);
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}
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void CBonusSystemNode::childDetached(CBonusSystemNode & child)
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{
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if(vstd::contains(children, &child))
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children -= &child;
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else
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{
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logBonus->error("Error on Detach. Node %s (nodeType=%d) is not a child of %s (nodeType=%d)"
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, child.nodeShortInfo(), child.nodeType, nodeShortInfo(), nodeType);
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}
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}
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void CBonusSystemNode::detachFromAll()
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{
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while(!parentsToPropagate.empty())
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detachFrom(*parentsToPropagate.front());
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while(!parentsToInherit.empty())
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detachFromSource(*parentsToInherit.front());
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}
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bool CBonusSystemNode::isIndependentNode() const
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{
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return parentsToInherit.empty() && parentsToPropagate.empty() && children.empty();
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}
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std::string CBonusSystemNode::nodeName() const
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{
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return std::string("Bonus system node of type ") + typeid(*this).name();
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}
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std::string CBonusSystemNode::nodeShortInfo() const
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{
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std::ostringstream str;
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str << "'" << typeid(* this).name() << "'";
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return str.str();
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}
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void CBonusSystemNode::deserializationFix()
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{
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exportBonuses();
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}
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void CBonusSystemNode::getRedParents(TCNodes & out) const
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{
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TCNodes lparents;
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getParents(lparents);
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for(const CBonusSystemNode *pname : lparents)
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{
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if(pname->actsAsBonusSourceOnly())
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{
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out.insert(pname);
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}
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}
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if(!actsAsBonusSourceOnly())
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{
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for(const CBonusSystemNode *child : children)
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{
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out.insert(child);
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}
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}
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}
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void CBonusSystemNode::getRedChildren(TNodes &out)
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{
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for(CBonusSystemNode *pname : parentsToPropagate)
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{
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if(!pname->actsAsBonusSourceOnly())
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{
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out.insert(pname);
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}
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}
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if(actsAsBonusSourceOnly())
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{
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for(CBonusSystemNode *child : children)
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{
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out.insert(child);
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}
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}
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}
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void CBonusSystemNode::newRedDescendant(CBonusSystemNode & descendant) const
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{
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for(const auto & b : exportedBonuses)
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{
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if(b->propagator)
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descendant.propagateBonus(b, *this);
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}
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TCNodes redParents;
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getRedAncestors(redParents); //get all red parents recursively
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for(const auto * parent : redParents)
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{
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for(const auto & b : parent->exportedBonuses)
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{
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if(b->propagator)
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descendant.propagateBonus(b, *this);
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}
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}
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}
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void CBonusSystemNode::removedRedDescendant(CBonusSystemNode & descendant) const
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{
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for(const auto & b : exportedBonuses)
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if(b->propagator)
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descendant.unpropagateBonus(b);
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TCNodes redParents;
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getRedAncestors(redParents); //get all red parents recursively
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for(auto * parent : redParents)
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{
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for(const auto & b : parent->exportedBonuses)
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if(b->propagator)
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descendant.unpropagateBonus(b);
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}
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}
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void CBonusSystemNode::getRedAncestors(TCNodes &out) const
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{
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getRedParents(out);
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TCNodes redParents;
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getRedParents(redParents);
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for(const CBonusSystemNode * parent : redParents)
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parent->getRedAncestors(out);
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}
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void CBonusSystemNode::exportBonus(const std::shared_ptr<Bonus> & b)
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{
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if(b->propagator)
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propagateBonus(b, *this);
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else
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bonuses.push_back(b);
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CBonusSystemNode::treeHasChanged();
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}
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void CBonusSystemNode::exportBonuses()
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{
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for(const auto & b : exportedBonuses)
|
|
exportBonus(b);
|
|
}
|
|
|
|
CBonusSystemNode::ENodeTypes CBonusSystemNode::getNodeType() const
|
|
{
|
|
return nodeType;
|
|
}
|
|
|
|
const TCNodesVector& CBonusSystemNode::getParentNodes() const
|
|
{
|
|
return parentsToInherit;
|
|
}
|
|
|
|
void CBonusSystemNode::setNodeType(CBonusSystemNode::ENodeTypes type)
|
|
{
|
|
nodeType = type;
|
|
}
|
|
|
|
BonusList & CBonusSystemNode::getExportedBonusList()
|
|
{
|
|
return exportedBonuses;
|
|
}
|
|
|
|
const BonusList & CBonusSystemNode::getExportedBonusList() const
|
|
{
|
|
return exportedBonuses;
|
|
}
|
|
|
|
void CBonusSystemNode::limitBonuses(const BonusList &allBonuses, BonusList &out) const
|
|
{
|
|
assert(&allBonuses != &out); //todo should it work in-place?
|
|
|
|
BonusList undecided = allBonuses;
|
|
BonusList & accepted = out;
|
|
|
|
while(true)
|
|
{
|
|
int undecidedCount = static_cast<int>(undecided.size());
|
|
for(int i = 0; i < undecided.size(); i++)
|
|
{
|
|
auto b = undecided[i];
|
|
BonusLimitationContext context = {*b, *this, out, undecided};
|
|
auto decision = b->limiter ? b->limiter->limit(context) : ILimiter::EDecision::ACCEPT; //bonuses without limiters will be accepted by default
|
|
if(decision == ILimiter::EDecision::DISCARD)
|
|
{
|
|
undecided.erase(i);
|
|
i--; continue;
|
|
}
|
|
else if(decision == ILimiter::EDecision::ACCEPT)
|
|
{
|
|
accepted.push_back(b);
|
|
undecided.erase(i);
|
|
i--; continue;
|
|
}
|
|
else
|
|
assert(decision == ILimiter::EDecision::NOT_SURE);
|
|
}
|
|
|
|
if(undecided.size() == undecidedCount) //we haven't moved a single bonus -> limiters reached a stable state
|
|
return;
|
|
}
|
|
}
|
|
|
|
void CBonusSystemNode::treeHasChanged()
|
|
{
|
|
treeChanged++;
|
|
}
|
|
|
|
int64_t CBonusSystemNode::getTreeVersion() const
|
|
{
|
|
return treeChanged;
|
|
}
|
|
|
|
VCMI_LIB_NAMESPACE_END
|