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vcmi/lib/spells/effects/Timed.cpp
2023-01-20 15:18:10 +02:00

283 lines
7.1 KiB
C++

/*
* Timed.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "Timed.h"
#include "Registry.h"
#include "../ISpellMechanics.h"
#include "../../NetPacks.h"
#include "../../battle/IBattleState.h"
#include "../../battle/Unit.h"
#include "../../serializer/JsonSerializeFormat.h"
VCMI_LIB_NAMESPACE_BEGIN
static const std::string EFFECT_NAME = "core:timed";
namespace spells
{
namespace effects
{
VCMI_REGISTER_SPELL_EFFECT(Timed, EFFECT_NAME);
Timed::Timed()
: UnitEffect(),
cumulative(false),
bonus()
{
}
Timed::~Timed() = default;
void Timed::apply(ServerCallback * server, const Mechanics * m, const EffectTarget & target) const
{
const bool describe = server->describeChanges();
int32_t duration = m->getEffectDuration();
std::vector<Bonus> converted;
convertBonus(m, duration, converted);
std::shared_ptr<const Bonus> peculiarBonus = nullptr;
std::shared_ptr<const Bonus> addedValueBonus = nullptr;
std::shared_ptr<const Bonus> fixedValueBonus = nullptr;
auto casterHero = dynamic_cast<const CGHeroInstance *>(m->caster);
if(casterHero)
{
peculiarBonus = casterHero->getBonusLocalFirst(Selector::typeSubtype(Bonus::SPECIAL_PECULIAR_ENCHANT, m->getSpellIndex()));
addedValueBonus = casterHero->getBonusLocalFirst(Selector::typeSubtype(Bonus::SPECIAL_ADD_VALUE_ENCHANT, m->getSpellIndex()));
fixedValueBonus = casterHero->getBonusLocalFirst(Selector::typeSubtype(Bonus::SPECIAL_FIXED_VALUE_ENCHANT, m->getSpellIndex()));
}
//TODO: does hero specialty should affects his stack casting spells?
SetStackEffect sse;
BattleLogMessage blm;
for(auto & t : target)
{
std::vector<Bonus> buffer;
std::copy(converted.begin(), converted.end(), std::back_inserter(buffer));
const battle::Unit * affected = t.unitValue;
if(!affected)
{
logGlobal->error("[Internal error] Invalid target for timed effect");
continue;
}
if(!affected->alive())
continue;
if(describe)
describeEffect(blm.lines, m, converted, affected);
//Apply hero specials - peculiar enchants
const auto tier = std::max(affected->creatureLevel(), 1); //don't divide by 0 for certain creatures (commanders, war machines)
if(peculiarBonus)
{
si32 power = 0;
switch (peculiarBonus->additionalInfo[0])
{
case 0: //normal
switch (tier)
{
case 1:
case 2:
power = 3;
break;
case 3:
case 4:
power = 2;
break;
case 5:
case 6:
power = 1;
break;
}
break;
case 1:
//Coronius style specialty bonus.
//Please note that actual Coronius isnt here, because Slayer is a spell that doesnt affect monster stats and is used only in calculateDmgRange
power = std::max(5 - tier, 0);
break;
}
if(m->isNegativeSpell())
{
//negative spells like weakness are defined in json with negative numbers, so we need do same here
power = -1 * power;
}
for(Bonus& b : buffer)
{
b.val += power;
}
}
if(addedValueBonus)
{
for(Bonus & b : buffer)
{
b.val += addedValueBonus->additionalInfo[0];
}
}
if(fixedValueBonus)
{
for(Bonus & b : buffer)
{
b.val = fixedValueBonus->additionalInfo[0];
}
}
if(casterHero && casterHero->hasBonusOfType(Bonus::SPECIAL_BLESS_DAMAGE, m->getSpellIndex())) //TODO: better handling of bonus percentages
{
int damagePercent = casterHero->valOfBonuses(Bonus::SPECIAL_BLESS_DAMAGE, m->getSpellIndex()) / tier;
Bonus specialBonus(Bonus::N_TURNS, Bonus::GENERAL_DAMAGE_PREMY, Bonus::SPELL_EFFECT, damagePercent, m->getSpellIndex());
specialBonus.turnsRemain = duration;
buffer.push_back(specialBonus);
}
if(cumulative)
sse.toAdd.push_back(std::make_pair(affected->unitId(), buffer));
else
sse.toUpdate.push_back(std::make_pair(affected->unitId(), buffer));
}
if(!(sse.toAdd.empty() && sse.toUpdate.empty()))
server->apply(&sse);
if(describe && !blm.lines.empty())
server->apply(&blm);
}
void Timed::convertBonus(const Mechanics * m, int32_t & duration, std::vector<Bonus> & converted) const
{
int32_t maxDuration = 0;
for(const std::shared_ptr<Bonus> & b : bonus)
{
Bonus nb(*b);
//use configured duration if present
if(nb.turnsRemain == 0)
nb.turnsRemain = duration;
vstd::amax(maxDuration, nb.turnsRemain);
nb.sid = m->getSpellIndex(); //for all
nb.source = Bonus::SPELL_EFFECT;//for all
//fix to original config: shield should display damage reduction
if((nb.sid == SpellID::SHIELD || nb.sid == SpellID::AIR_SHIELD) && (nb.type == Bonus::GENERAL_DAMAGE_REDUCTION))
nb.val = 100 - nb.val;
//we need to know who cast Bind
else if(nb.sid == SpellID::BIND && nb.type == Bonus::BIND_EFFECT && m->caster->getCasterUnitId() >= 0)
nb.additionalInfo = m->caster->getCasterUnitId();
converted.push_back(nb);
}
//if all spell effects have special duration, use it later for special bonuses
duration = maxDuration;
}
void Timed::describeEffect(std::vector<MetaString> & log, const Mechanics * m, const std::vector<Bonus> & bonuses, const battle::Unit * target) const
{
auto addLogLine = [&](const int32_t baseTextID, const boost::logic::tribool & plural)
{
MetaString line;
target->addText(line, MetaString::GENERAL_TXT, baseTextID, plural);
target->addNameReplacement(line, plural);
log.push_back(std::move(line));
};
if(m->getSpellIndex() == SpellID::DISEASE)
{
addLogLine(553, boost::logic::indeterminate);
return;
}
for(const auto & bonus : bonuses)
{
switch(bonus.type)
{
case Bonus::NOT_ACTIVE:
{
switch(bonus.subtype)
{
case SpellID::STONE_GAZE:
addLogLine(558, boost::logic::indeterminate);
return;
case SpellID::PARALYZE:
addLogLine(563, boost::logic::indeterminate);
return;
default:
break;
}
}
break;
case Bonus::POISON:
addLogLine(561, boost::logic::indeterminate);
return;
case Bonus::BIND_EFFECT:
addLogLine(-560, true);
return;
case Bonus::STACK_HEALTH:
{
if(bonus.val < 0)
{
BonusList unitHealth = *target->getBonuses(Selector::type()(Bonus::STACK_HEALTH));
auto oldHealth = unitHealth.totalValue();
unitHealth.push_back(std::make_shared<Bonus>(bonus));
auto newHealth = unitHealth.totalValue();
//"The %s shrivel with age, and lose %d hit points."
MetaString line;
target->addText(line, MetaString::GENERAL_TXT, 551);
target->addNameReplacement(line);
line.addReplacement(oldHealth - newHealth);
log.push_back(std::move(line));
return;
}
}
break;
default:
break;
}
}
}
void Timed::serializeJsonUnitEffect(JsonSerializeFormat & handler)
{
assert(!handler.saving);
handler.serializeBool("cumulative", cumulative, false);
{
auto guard = handler.enterStruct("bonus");
const JsonNode & data = handler.getCurrent();
for(const auto & p : data.Struct())
{
//TODO: support JsonSerializeFormat in Bonus
auto guard = handler.enterStruct(p.first);
const JsonNode & bonusNode = handler.getCurrent();
auto b = JsonUtils::parseBonus(bonusNode);
bonus.push_back(b);
}
}
}
}
}
VCMI_LIB_NAMESPACE_END