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113 lines
3.1 KiB
C++
113 lines
3.1 KiB
C++
/*
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* RemoveObstacle.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 "RemoveObstacle.h"
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#include "Registry.h"
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#include "../ISpellMechanics.h"
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#include "../../NetPacks.h"
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#include "../../battle/IBattleState.h"
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#include "../../battle/CBattleInfoCallback.h"
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#include "../../battle/CObstacleInstance.h"
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#include "../../serializer/JsonSerializeFormat.h"
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VCMI_LIB_NAMESPACE_BEGIN
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namespace spells
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{
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namespace effects
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{
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bool RemoveObstacle::applicable(Problem & problem, const Mechanics * m) const
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{
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if (getTargets(m, EffectTarget(), true).empty())
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{
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return m->adaptProblem(ESpellCastProblem::NO_APPROPRIATE_TARGET, problem);
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}
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return true;
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}
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bool RemoveObstacle::applicable(Problem & problem, const Mechanics * m, const EffectTarget & target) const
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{
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return !getTargets(m, target, false).empty();
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}
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void RemoveObstacle::apply(ServerCallback * server, const Mechanics * m, const EffectTarget & target) const
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{
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BattleObstaclesChanged pack;
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for(const auto & obstacle : getTargets(m, target, false))
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{
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auto * serializable = const_cast<CObstacleInstance*>(obstacle); //Workaround
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pack.changes.emplace_back(obstacle->uniqueID, BattleChanges::EOperation::REMOVE);
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serializable->toInfo(pack.changes.back(), BattleChanges::EOperation::REMOVE);
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}
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if(!pack.changes.empty())
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server->apply(&pack);
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}
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void RemoveObstacle::serializeJsonEffect(JsonSerializeFormat & handler)
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{
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handler.serializeBool("removeAbsolute", removeAbsolute, false);
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handler.serializeBool("removeUsual", removeUsual, false);
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handler.serializeBool("removeAllSpells", removeAllSpells, false);
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handler.serializeIdArray("removeSpells", removeSpells);
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}
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bool RemoveObstacle::canRemove(const CObstacleInstance * obstacle) const
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{
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if(removeAbsolute && obstacle->obstacleType == CObstacleInstance::ABSOLUTE_OBSTACLE)
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return true;
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if(removeUsual && obstacle->obstacleType == CObstacleInstance::USUAL)
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return true;
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const auto *spellObstacle = dynamic_cast<const SpellCreatedObstacle *>(obstacle);
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if(removeAllSpells && obstacle->obstacleType == CObstacleInstance::SPELL_CREATED)
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return true;
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if(spellObstacle && !removeSpells.empty())
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{
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if(vstd::contains(removeSpells, SpellID(spellObstacle->ID)))
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return true;
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}
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return false;
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}
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std::set<const CObstacleInstance *> RemoveObstacle::getTargets(const Mechanics * m, const EffectTarget & target, bool alwaysMassive) const
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{
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std::set<const CObstacleInstance *> possibleTargets;
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if(m->isMassive() || alwaysMassive)
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{
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for(const auto & obstacle : m->battle()->battleGetAllObstacles(BattlePerspective::ALL_KNOWING))
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if(canRemove(obstacle.get()))
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possibleTargets.insert(obstacle.get());
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}
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else
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{
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for(const auto & destination : target)
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if(destination.hexValue.isValid())
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for(const auto & obstacle : m->battle()->battleGetAllObstaclesOnPos(destination.hexValue, false))
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if(canRemove(obstacle.get()))
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possibleTargets.insert(obstacle.get());
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}
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return possibleTargets;
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}
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}
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}
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VCMI_LIB_NAMESPACE_END
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