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212 lines
5.4 KiB
C++
212 lines
5.4 KiB
C++
/*
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* Summon.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 "Summon.h"
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#include "Registry.h"
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#include "../ISpellMechanics.h"
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#include "../../battle/CBattleInfoCallback.h"
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#include "../../battle/BattleInfo.h"
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#include "../../battle/Unit.h"
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#include "../../serializer/JsonSerializeFormat.h"
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#include "../../CCreatureHandler.h"
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#include "../../CHeroHandler.h"
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#include "../../mapObjects/CGHeroInstance.h"
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#include "../../networkPacks/PacksForClientBattle.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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void Summon::adjustAffectedHexes(std::set<BattleHex> & hexes, const Mechanics * m, const Target & spellTarget) const
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{
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//no hexes affected
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}
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void Summon::adjustTargetTypes(std::vector<TargetType> & types) const
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{
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//any target type allowed
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}
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bool Summon::applicable(Problem & problem, const Mechanics * m) const
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{
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if (creature == CreatureID::NONE)
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{
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logMod->error("Attempt to summon non-existing creature!");
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return m->adaptGenericProblem(problem);
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}
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if (summonedCreatureAmount(m) == 0)
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{
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logMod->debug("Attempt to summon zero creatures!");
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return m->adaptGenericProblem(problem);
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}
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if(exclusive)
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{
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//check if there are summoned creatures of other type
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auto otherSummoned = m->battle()->battleGetUnitsIf([m, this](const battle::Unit * unit)
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{
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return (unit->unitOwner() == m->getCasterColor())
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&& (unit->unitSlot() == SlotID::SUMMONED_SLOT_PLACEHOLDER)
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&& (!unit->isClone())
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&& (unit->creatureId() != creature);
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});
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if(!otherSummoned.empty())
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{
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const auto *elemental = otherSummoned.front();
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MetaString text;
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text.appendLocalString(EMetaText::GENERAL_TXT, 538);
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const auto *caster = dynamic_cast<const CGHeroInstance *>(m->caster);
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if(caster)
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{
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text.replaceRawString(caster->getNameTranslated());
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text.replaceNamePlural(elemental->creatureId());
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if(caster->type->gender == EHeroGender::FEMALE)
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text.replaceLocalString(EMetaText::GENERAL_TXT, 540);
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else
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text.replaceLocalString(EMetaText::GENERAL_TXT, 539);
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}
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problem.add(std::move(text), Problem::NORMAL);
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return false;
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}
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}
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return true;
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}
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int32_t Summon::summonedCreatureHealth(const Mechanics * m, const battle::Unit * unit) const
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{
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auto valueWithBonus = m->applySpecificSpellBonus(m->calculateRawEffectValue(0, m->getEffectPower()));
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if(summonByHealth)
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return valueWithBonus;
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else
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return valueWithBonus * unit->getMaxHealth();
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}
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int32_t Summon::summonedCreatureAmount(const Mechanics * m) const
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{
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auto valueWithBonus = m->applySpecificSpellBonus(m->calculateRawEffectValue(0, m->getEffectPower()));
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if(summonByHealth)
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{
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const auto *creatureType = creature.toEntity(m->creatures());
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auto creatureMaxHealth = creatureType->getMaxHealth();
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return valueWithBonus / creatureMaxHealth;
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}
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else
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{
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return valueWithBonus;
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}
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}
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void Summon::apply(ServerCallback * server, const Mechanics * m, const EffectTarget & target) const
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{
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BattleUnitsChanged pack;
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pack.battleID = m->battle()->getBattle()->getBattleID();
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for(const auto & dest : target)
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{
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if(dest.unitValue)
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{
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const battle::Unit * summoned = dest.unitValue;
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std::shared_ptr<battle::Unit> state = summoned->acquire();
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int64_t healthValue = summonedCreatureHealth(m, summoned);
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state->heal(healthValue, EHealLevel::OVERHEAL, (permanent ? EHealPower::PERMANENT : EHealPower::ONE_BATTLE));
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pack.changedStacks.emplace_back(summoned->unitId(), UnitChanges::EOperation::RESET_STATE);
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state->save(pack.changedStacks.back().data);
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}
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else
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{
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int32_t amount = summonedCreatureAmount(m);
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if(amount < 1)
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{
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server->complain("Summoning didn't summon any!");
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continue;
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}
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battle::UnitInfo info;
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info.id = m->battle()->battleNextUnitId();
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info.count = amount;
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info.type = creature;
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info.side = m->casterSide;
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info.position = dest.hexValue;
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info.summoned = !permanent;
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pack.changedStacks.emplace_back(info.id, UnitChanges::EOperation::ADD);
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info.save(pack.changedStacks.back().data);
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}
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}
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if(!pack.changedStacks.empty())
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server->apply(pack);
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}
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EffectTarget Summon::filterTarget(const Mechanics * m, const EffectTarget & target) const
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{
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return target;
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}
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void Summon::serializeJsonEffect(JsonSerializeFormat & handler)
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{
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handler.serializeId("id", creature, CreatureID());
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handler.serializeBool("permanent", permanent, false);
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handler.serializeBool("exclusive", exclusive, true);
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handler.serializeBool("summonByHealth", summonByHealth, false);
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handler.serializeBool("summonSameUnit", summonSameUnit, false);
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}
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EffectTarget Summon::transformTarget(const Mechanics * m, const Target & aimPoint, const Target & spellTarget) const
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{
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auto sameSummoned = m->battle()->battleGetUnitsIf([m, this](const battle::Unit * unit)
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{
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return (unit->unitOwner() == m->getCasterColor())
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&& (unit->unitSlot() == SlotID::SUMMONED_SLOT_PLACEHOLDER)
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&& (!unit->isClone())
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&& (unit->creatureId() == creature)
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&& (unit->alive());
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});
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EffectTarget effectTarget;
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if(sameSummoned.empty() || !summonSameUnit)
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{
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BattleHex hex = m->battle()->getAvailableHex(creature, m->casterSide);
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if(!hex.isValid())
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logGlobal->error("No free space to summon creature!");
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else
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effectTarget.emplace_back(hex);
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}
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else
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{
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effectTarget.emplace_back(sameSummoned.front());
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}
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return effectTarget;
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}
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}
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}
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VCMI_LIB_NAMESPACE_END
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