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492 lines
20 KiB
C++
492 lines
20 KiB
C++
#include "activespells.hpp"
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#include <optional>
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#include <components/debug/debuglog.hpp>
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#include <components/misc/rng.hpp>
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#include <components/misc/stringops.hpp>
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#include <components/esm3/loadmgef.hpp>
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#include <components/settings/settings.hpp>
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#include "creaturestats.hpp"
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#include "spellcasting.hpp"
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#include "spelleffects.hpp"
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#include "../mwbase/environment.hpp"
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#include "../mwbase/world.hpp"
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#include "../mwrender/animation.hpp"
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#include "../mwworld/esmstore.hpp"
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#include "../mwworld/class.hpp"
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#include "../mwworld/inventorystore.hpp"
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namespace
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{
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bool merge(std::vector<ESM::ActiveEffect>& present, const std::vector<ESM::ActiveEffect>& queued)
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{
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// Can't merge if we already have an effect with the same effect index
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auto problem = std::find_if(queued.begin(), queued.end(), [&] (const auto& qEffect)
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{
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return std::find_if(present.begin(), present.end(), [&] (const auto& pEffect) { return pEffect.mEffectIndex == qEffect.mEffectIndex; }) != present.end();
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});
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if(problem != queued.end())
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return false;
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present.insert(present.end(), queued.begin(), queued.end());
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return true;
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}
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void addEffects(std::vector<ESM::ActiveEffect>& effects, const ESM::EffectList& list, bool ignoreResistances = false)
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{
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int currentEffectIndex = 0;
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for(const auto& enam : list.mList)
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{
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ESM::ActiveEffect effect;
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effect.mEffectId = enam.mEffectID;
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effect.mArg = MWMechanics::EffectKey(enam).mArg;
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effect.mMagnitude = 0.f;
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effect.mMinMagnitude = enam.mMagnMin;
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effect.mMaxMagnitude = enam.mMagnMax;
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effect.mEffectIndex = currentEffectIndex++;
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effect.mFlags = ESM::ActiveEffect::Flag_None;
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if(ignoreResistances)
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effect.mFlags |= ESM::ActiveEffect::Flag_Ignore_Resistances;
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effect.mDuration = -1;
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effect.mTimeLeft = -1;
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effects.emplace_back(effect);
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}
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}
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}
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namespace MWMechanics
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{
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ActiveSpells::IterationGuard::IterationGuard(ActiveSpells& spells) : mActiveSpells(spells)
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{
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mActiveSpells.mIterating = true;
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}
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ActiveSpells::IterationGuard::~IterationGuard()
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{
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mActiveSpells.mIterating = false;
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}
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ActiveSpells::ActiveSpellParams::ActiveSpellParams(const CastSpell& cast, const MWWorld::Ptr& caster)
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: mId(cast.mId), mDisplayName(cast.mSourceName), mCasterActorId(-1), mSlot(cast.mSlot), mType(cast.mType), mWorsenings(-1)
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{
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if(!caster.isEmpty() && caster.getClass().isActor())
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mCasterActorId = caster.getClass().getCreatureStats(caster).getActorId();
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}
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ActiveSpells::ActiveSpellParams::ActiveSpellParams(const ESM::Spell* spell, const MWWorld::Ptr& actor, bool ignoreResistances)
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: mId(spell->mId), mDisplayName(spell->mName), mCasterActorId(actor.getClass().getCreatureStats(actor).getActorId()), mSlot(0)
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, mType(spell->mData.mType == ESM::Spell::ST_Ability ? ESM::ActiveSpells::Type_Ability : ESM::ActiveSpells::Type_Permanent), mWorsenings(-1)
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{
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assert(spell->mData.mType != ESM::Spell::ST_Spell && spell->mData.mType != ESM::Spell::ST_Power);
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addEffects(mEffects, spell->mEffects, ignoreResistances);
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}
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ActiveSpells::ActiveSpellParams::ActiveSpellParams(const MWWorld::ConstPtr& item, const ESM::Enchantment* enchantment, int slotIndex, const MWWorld::Ptr& actor)
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: mId(item.getCellRef().getRefId()), mDisplayName(item.getClass().getName(item)), mCasterActorId(actor.getClass().getCreatureStats(actor).getActorId())
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, mSlot(slotIndex), mType(ESM::ActiveSpells::Type_Enchantment), mWorsenings(-1)
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{
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assert(enchantment->mData.mType == ESM::Enchantment::ConstantEffect);
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addEffects(mEffects, enchantment->mEffects);
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}
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ActiveSpells::ActiveSpellParams::ActiveSpellParams(const ESM::ActiveSpells::ActiveSpellParams& params)
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: mId(params.mId), mEffects(params.mEffects), mDisplayName(params.mDisplayName), mCasterActorId(params.mCasterActorId)
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, mSlot(params.mItem.isSet() ? params.mItem.mIndex : 0)
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, mType(params.mType), mWorsenings(params.mWorsenings), mNextWorsening({params.mNextWorsening})
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{}
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ActiveSpells::ActiveSpellParams::ActiveSpellParams(const ActiveSpellParams& params, const MWWorld::Ptr& actor)
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: mId(params.mId), mDisplayName(params.mDisplayName), mCasterActorId(actor.getClass().getCreatureStats(actor).getActorId())
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, mSlot(params.mSlot), mType(params.mType), mWorsenings(-1)
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{}
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ESM::ActiveSpells::ActiveSpellParams ActiveSpells::ActiveSpellParams::toEsm() const
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{
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ESM::ActiveSpells::ActiveSpellParams params;
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params.mId = mId;
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params.mEffects = mEffects;
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params.mDisplayName = mDisplayName;
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params.mCasterActorId = mCasterActorId;
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params.mItem.unset();
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if(mSlot)
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{
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// Note that we're storing the inventory slot as a RefNum instead of an int as a matter of future proofing
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// mSlot needs to be replaced with a RefNum once inventory items get persistent RefNum (#4508 #6148)
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params.mItem = { static_cast<unsigned int>(mSlot), 0 };
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}
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params.mType = mType;
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params.mWorsenings = mWorsenings;
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params.mNextWorsening = mNextWorsening.toEsm();
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return params;
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}
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void ActiveSpells::ActiveSpellParams::worsen()
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{
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++mWorsenings;
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if(!mWorsenings)
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mNextWorsening = MWBase::Environment::get().getWorld()->getTimeStamp();
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mNextWorsening += CorprusStats::sWorseningPeriod;
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}
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bool ActiveSpells::ActiveSpellParams::shouldWorsen() const
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{
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return mWorsenings >= 0 && MWBase::Environment::get().getWorld()->getTimeStamp() >= mNextWorsening;
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}
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void ActiveSpells::ActiveSpellParams::resetWorsenings()
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{
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mWorsenings = -1;
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}
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void ActiveSpells::update(const MWWorld::Ptr& ptr, float duration)
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{
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const auto& creatureStats = ptr.getClass().getCreatureStats(ptr);
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assert(&creatureStats.getActiveSpells() == this);
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IterationGuard guard{*this};
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// Erase no longer active spells and effects
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for(auto spellIt = mSpells.begin(); spellIt != mSpells.end();)
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{
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if(spellIt->mType != ESM::ActiveSpells::Type_Temporary && spellIt->mType != ESM::ActiveSpells::Type_Consumable)
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{
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++spellIt;
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continue;
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}
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bool removedSpell = false;
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for(auto effectIt = spellIt->mEffects.begin(); effectIt != spellIt->mEffects.end();)
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{
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if(effectIt->mFlags & ESM::ActiveEffect::Flag_Remove && effectIt->mTimeLeft <= 0.f)
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{
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auto effect = *effectIt;
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effectIt = spellIt->mEffects.erase(effectIt);
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onMagicEffectRemoved(ptr, *spellIt, effect);
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removedSpell = applyPurges(ptr, &spellIt, &effectIt);
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if(removedSpell)
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break;
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}
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else
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{
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++effectIt;
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}
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}
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if(removedSpell)
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continue;
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if(spellIt->mEffects.empty())
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spellIt = mSpells.erase(spellIt);
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else
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++spellIt;
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}
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for(const auto& spell : mQueue)
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addToSpells(ptr, spell);
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mQueue.clear();
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// Vanilla only does this on cell change I think
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const auto& spells = creatureStats.getSpells();
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for(const ESM::Spell* spell : spells)
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{
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if(spell->mData.mType != ESM::Spell::ST_Spell && spell->mData.mType != ESM::Spell::ST_Power && !isSpellActive(spell->mId))
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mSpells.emplace_back(ActiveSpellParams{spell, ptr});
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}
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if(ptr.getClass().hasInventoryStore(ptr) && !(creatureStats.isDead() && !creatureStats.isDeathAnimationFinished()))
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{
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auto& store = ptr.getClass().getInventoryStore(ptr);
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if(store.getInvListener() != nullptr)
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{
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bool playNonLooping = !store.isFirstEquip();
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const auto world = MWBase::Environment::get().getWorld();
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for(int slotIndex = 0; slotIndex < MWWorld::InventoryStore::Slots; slotIndex++)
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{
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auto slot = store.getSlot(slotIndex);
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if(slot == store.end())
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continue;
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const auto& enchantmentId = slot->getClass().getEnchantment(*slot);
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if(enchantmentId.empty())
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continue;
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const ESM::Enchantment* enchantment = world->getStore().get<ESM::Enchantment>().find(enchantmentId);
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if(enchantment->mData.mType != ESM::Enchantment::ConstantEffect)
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continue;
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if(std::find_if(mSpells.begin(), mSpells.end(), [&] (const ActiveSpellParams& params)
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{
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return params.mSlot == slotIndex && params.mType == ESM::ActiveSpells::Type_Enchantment && params.mId == slot->getCellRef().getRefId();
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}) != mSpells.end())
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continue;
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const ActiveSpellParams& params = mSpells.emplace_back(ActiveSpellParams{*slot, enchantment, slotIndex, ptr});
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for(const auto& effect : params.mEffects)
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MWMechanics::playEffects(ptr, *world->getStore().get<ESM::MagicEffect>().find(effect.mEffectId), playNonLooping);
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}
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}
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}
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// Update effects
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for(auto spellIt = mSpells.begin(); spellIt != mSpells.end();)
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{
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const auto caster = MWBase::Environment::get().getWorld()->searchPtrViaActorId(spellIt->mCasterActorId); //Maybe make this search outside active grid?
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bool removedSpell = false;
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std::optional<ActiveSpellParams> reflected;
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for(auto it = spellIt->mEffects.begin(); it != spellIt->mEffects.end();)
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{
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auto result = applyMagicEffect(ptr, caster, *spellIt, *it, duration);
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if(result == MagicApplicationResult::REFLECTED)
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{
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if(!reflected)
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{
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static const bool keepOriginalCaster = Settings::Manager::getBool("classic reflected absorb spells behavior", "Game");
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if(keepOriginalCaster)
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reflected = {*spellIt, caster};
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else
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reflected = {*spellIt, ptr};
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}
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auto& reflectedEffect = reflected->mEffects.emplace_back(*it);
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reflectedEffect.mFlags = ESM::ActiveEffect::Flag_Ignore_Reflect | ESM::ActiveEffect::Flag_Ignore_SpellAbsorption;
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it = spellIt->mEffects.erase(it);
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}
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else if(result == MagicApplicationResult::REMOVED)
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it = spellIt->mEffects.erase(it);
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else
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++it;
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removedSpell = applyPurges(ptr, &spellIt, &it);
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if(removedSpell)
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break;
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}
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if(reflected)
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{
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const ESM::Static* reflectStatic = MWBase::Environment::get().getWorld()->getStore().get<ESM::Static>().find("VFX_Reflect");
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MWRender::Animation* animation = MWBase::Environment::get().getWorld()->getAnimation(ptr);
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if(animation && !reflectStatic->mModel.empty())
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animation->addEffect("meshes\\" + reflectStatic->mModel, ESM::MagicEffect::Reflect, false, std::string());
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caster.getClass().getCreatureStats(caster).getActiveSpells().addSpell(*reflected);
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}
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if(removedSpell)
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continue;
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bool remove = false;
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if(spellIt->mType == ESM::ActiveSpells::Type_Ability || spellIt->mType == ESM::ActiveSpells::Type_Permanent)
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{
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try
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{
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remove = !spells.hasSpell(spellIt->mId);
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}
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catch(const std::runtime_error& e)
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{
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remove = true;
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Log(Debug::Error) << "Removing active effect: " << e.what();
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}
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}
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else if(spellIt->mType == ESM::ActiveSpells::Type_Enchantment)
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{
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const auto& store = ptr.getClass().getInventoryStore(ptr);
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auto slot = store.getSlot(spellIt->mSlot);
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remove = slot == store.end() || slot->getCellRef().getRefId() != spellIt->mId;
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}
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if(remove)
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{
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auto params = *spellIt;
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spellIt = mSpells.erase(spellIt);
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for(const auto& effect : params.mEffects)
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onMagicEffectRemoved(ptr, params, effect);
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applyPurges(ptr, &spellIt);
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continue;
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}
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++spellIt;
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}
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}
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void ActiveSpells::addToSpells(const MWWorld::Ptr& ptr, const ActiveSpellParams& spell)
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{
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if(spell.mType != ESM::ActiveSpells::Type_Consumable)
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{
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auto found = std::find_if(mSpells.begin(), mSpells.end(), [&] (const auto& existing)
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{
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return spell.mId == existing.mId && spell.mCasterActorId == existing.mCasterActorId && spell.mSlot == existing.mSlot;
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});
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if(found != mSpells.end())
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{
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if(merge(found->mEffects, spell.mEffects))
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return;
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auto params = *found;
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mSpells.erase(found);
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for(const auto& effect : params.mEffects)
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onMagicEffectRemoved(ptr, params, effect);
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}
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}
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mSpells.emplace_back(spell);
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}
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ActiveSpells::ActiveSpells() : mIterating(false)
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{}
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ActiveSpells::TIterator ActiveSpells::begin() const
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{
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return mSpells.begin();
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}
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ActiveSpells::TIterator ActiveSpells::end() const
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{
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return mSpells.end();
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}
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bool ActiveSpells::isSpellActive(const std::string& id) const
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{
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return std::find_if(mSpells.begin(), mSpells.end(), [&] (const auto& spell)
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{
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return Misc::StringUtils::ciEqual(spell.mId, id);
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}) != mSpells.end();
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}
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void ActiveSpells::addSpell(const ActiveSpellParams& params)
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{
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mQueue.emplace_back(params);
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}
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void ActiveSpells::addSpell(const ESM::Spell* spell, const MWWorld::Ptr& actor)
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{
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mQueue.emplace_back(ActiveSpellParams{spell, actor, true});
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}
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void ActiveSpells::purge(ParamsPredicate predicate, const MWWorld::Ptr& ptr)
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{
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assert(&ptr.getClass().getCreatureStats(ptr).getActiveSpells() == this);
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mPurges.emplace(predicate);
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if(!mIterating)
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{
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IterationGuard guard{*this};
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applyPurges(ptr);
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}
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}
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void ActiveSpells::purge(EffectPredicate predicate, const MWWorld::Ptr& ptr)
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{
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assert(&ptr.getClass().getCreatureStats(ptr).getActiveSpells() == this);
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mPurges.emplace(predicate);
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if(!mIterating)
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{
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IterationGuard guard{*this};
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applyPurges(ptr);
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}
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}
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bool ActiveSpells::applyPurges(const MWWorld::Ptr& ptr, std::list<ActiveSpellParams>::iterator* currentSpell, std::vector<ActiveEffect>::iterator* currentEffect)
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{
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bool removedCurrentSpell = false;
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while(!mPurges.empty())
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{
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auto predicate = mPurges.front();
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mPurges.pop();
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for(auto spellIt = mSpells.begin(); spellIt != mSpells.end();)
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{
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bool isCurrentSpell = currentSpell && *currentSpell == spellIt;
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std::visit([&] (auto&& variant)
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{
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using T = std::decay_t<decltype(variant)>;
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if constexpr (std::is_same_v<T, ParamsPredicate>)
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{
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if(variant(*spellIt))
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{
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auto params = *spellIt;
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spellIt = mSpells.erase(spellIt);
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if(isCurrentSpell)
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{
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*currentSpell = spellIt;
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removedCurrentSpell = true;
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}
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for(const auto& effect : params.mEffects)
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onMagicEffectRemoved(ptr, params, effect);
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}
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else
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++spellIt;
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}
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else
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{
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static_assert(std::is_same_v<T, EffectPredicate>, "Non-exhaustive visitor");
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for(auto effectIt = spellIt->mEffects.begin(); effectIt != spellIt->mEffects.end();)
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{
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if(variant(*spellIt, *effectIt))
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{
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auto effect = *effectIt;
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if(isCurrentSpell && currentEffect)
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{
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auto distance = std::distance(spellIt->mEffects.begin(), *currentEffect);
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if(effectIt <= *currentEffect)
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distance--;
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effectIt = spellIt->mEffects.erase(effectIt);
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*currentEffect = spellIt->mEffects.begin() + distance;
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}
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else
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effectIt = spellIt->mEffects.erase(effectIt);
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onMagicEffectRemoved(ptr, *spellIt, effect);
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}
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else
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++effectIt;
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}
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++spellIt;
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}
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}, predicate);
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}
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}
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return removedCurrentSpell;
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}
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void ActiveSpells::removeEffects(const MWWorld::Ptr& ptr, const std::string &id)
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{
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purge([=] (const ActiveSpellParams& params)
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{
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return params.mId == id;
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}, ptr);
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}
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void ActiveSpells::purgeEffect(const MWWorld::Ptr& ptr, short effectId)
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{
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purge([=] (const ActiveSpellParams&, const ESM::ActiveEffect& effect)
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{
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return effect.mEffectId == effectId;
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}, ptr);
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}
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void ActiveSpells::purge(const MWWorld::Ptr& ptr, int casterActorId)
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{
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purge([=] (const ActiveSpellParams& params)
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{
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return params.mCasterActorId == casterActorId;
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}, ptr);
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}
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void ActiveSpells::clear(const MWWorld::Ptr& ptr)
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{
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mQueue.clear();
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purge([] (const ActiveSpellParams& params) { return true; }, ptr);
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}
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|
|
|
void ActiveSpells::skipWorsenings(double hours)
|
|
{
|
|
for(auto& spell : mSpells)
|
|
{
|
|
if(spell.mWorsenings >= 0)
|
|
spell.mNextWorsening += hours;
|
|
}
|
|
}
|
|
|
|
void ActiveSpells::writeState(ESM::ActiveSpells &state) const
|
|
{
|
|
for(const auto& spell : mSpells)
|
|
state.mSpells.emplace_back(spell.toEsm());
|
|
for(const auto& spell : mQueue)
|
|
state.mQueue.emplace_back(spell.toEsm());
|
|
}
|
|
|
|
void ActiveSpells::readState(const ESM::ActiveSpells &state)
|
|
{
|
|
for(const ESM::ActiveSpells::ActiveSpellParams& spell : state.mSpells)
|
|
mSpells.emplace_back(ActiveSpellParams{spell});
|
|
for(const ESM::ActiveSpells::ActiveSpellParams& spell : state.mQueue)
|
|
mQueue.emplace_back(ActiveSpellParams{spell});
|
|
}
|
|
}
|