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https://github.com/TES3MP/openmw-tes3mp.git
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Issue #61: potion creation (1st part; still missing some implementations)
This commit is contained in:
Marc Zinnschlag
parent
332039da10
commit
5fbca239dd
3 changed files with 369 additions and 3 deletions
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@ -1,15 +1,259 @@
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#include "alchemy.hpp"
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#include <cstdlib>
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#include <algorithm>
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#include <stdexcept>
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#include <components/esm/loadskil.hpp>
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#include <components/esm/loadappa.hpp>
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#include <components/esm/loadgmst.hpp>
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#include <components/esm/loadmgef.hpp>
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#include <components/esm_store/store.hpp>
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#include "../mwbase/environment.hpp"
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#include "../mwbase/world.hpp"
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#include "../mwworld/containerstore.hpp"
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#include "../mwworld/class.hpp"
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#include "../mwworld/cellstore.hpp"
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#include "magiceffects.hpp"
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#include "creaturestats.hpp"
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#include "npcstats.hpp"
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std::set<MWMechanics::EffectKey> MWMechanics::Alchemy::listEffects() const
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{
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std::set<EffectKey> effects;
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for (TIngredientsIterator iter (mIngredients.begin()); iter!=mIngredients.end(); ++iter)
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{
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if (!iter->isEmpty())
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{
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const MWWorld::LiveCellRef<ESM::Ingredient> *ingredient = iter->get<ESM::Ingredient>();
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for (int i=0; i<4; ++i)
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if (ingredient->base->mData.mEffectID[i]!=-1)
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effects.insert (EffectKey (
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ingredient->base->mData.mEffectID[i], ingredient->base->mData.mSkills[i]!=-1 ?
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ingredient->base->mData.mSkills[i] : ingredient->base->mData.mAttributes[i]));
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}
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}
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return effects;
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}
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void MWMechanics::Alchemy::filterEffects (std::set<EffectKey>& effects) const
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{
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std::set<EffectKey>::iterator iter = effects.begin();
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while (iter!=effects.end())
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{
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bool remove = false;
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const EffectKey& key = *iter;
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{ // dodge pointless g++ warning
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for (TIngredientsIterator iter (mIngredients.begin()); iter!=mIngredients.end(); ++iter)
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{
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bool found = false;
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const MWWorld::LiveCellRef<ESM::Ingredient> *ingredient = iter->get<ESM::Ingredient>();
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for (int i=0; i<4; ++i)
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if (key.mId==ingredient->base->mData.mEffectID[i] &&
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(key.mArg==ingredient->base->mData.mSkills[i] ||
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key.mArg==ingredient->base->mData.mAttributes[i]))
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{
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found = true;
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break;
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}
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if (!found)
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{
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remove = true;
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break;
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}
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}
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}
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if (remove)
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effects.erase (iter++);
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else
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++iter;
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}
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}
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void MWMechanics::Alchemy::applyTools (int flags, float& value) const
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{
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bool magnitude = !(flags & ESM::MagicEffect::NoMagnitude);
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bool duration = !(flags & ESM::MagicEffect::NoDuration);
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bool negative = flags & (ESM::MagicEffect::Negative | ESM::MagicEffect::Negative2);
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int tool = negative ? ESM::Apparatus::Retort : ESM::Apparatus::Albemic;
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int setup = 0;
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if (!mTools[tool].isEmpty() && !mTools[ESM::Apparatus::Calcinator].isEmpty())
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setup = 1;
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else if (!mTools[tool].isEmpty())
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setup = 2;
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else if (!mTools[ESM::Apparatus::Calcinator].isEmpty())
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setup = 3;
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else
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return;
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float toolQuality = setup==1 || setup==2 ? mTools[tool].get<ESM::Apparatus>()->base->mData.mQuality : 0;
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float calcinatorQuality = setup==1 || setup==3 ?
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mTools[ESM::Apparatus::Calcinator].get<ESM::Apparatus>()->base->mData.mQuality : 0;
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float quality = 1;
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switch (setup)
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{
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case 1:
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quality = negative ? 2 * toolQuality + 3 * calcinatorQuality :
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(magnitude && duration ?
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2 * toolQuality + calcinatorQuality : 2/3.0 * (toolQuality + calcinatorQuality) + 0.5);
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break;
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case 2:
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quality = negative ? 1+toolQuality : (magnitude && duration ? toolQuality : toolQuality + 0.5);
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break;
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case 3:
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quality = magnitude && duration ? calcinatorQuality : calcinatorQuality + 0.5;
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break;
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}
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if (setup==3 || !negative)
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{
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value += quality;
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}
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else
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{
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if (quality==0)
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throw std::runtime_error ("invalid derived alchemy apparatus quality");
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value /= quality;
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}
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}
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void MWMechanics::Alchemy::updateEffects()
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{
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mEffects.clear();
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int ingredients = 0;
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for (TIngredientsIterator iter (beginIngredients()); iter!=endIngredients(); ++iter)
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if (!iter->isEmpty())
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++ingredients;
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if (ingredients<2 || mAlchemist.isEmpty() || mTools[ESM::Apparatus::MortarPestle].isEmpty())
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return;
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// find effects
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std::set<EffectKey> effects (listEffects());
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filterEffects (effects);
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// general alchemy factor
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float x = getChance();
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x *= mTools[ESM::Apparatus::MortarPestle].get<ESM::Apparatus>()->base->mData.mQuality;
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x *= MWBase::Environment::get().getWorld()->getStore().gameSettings.find ("fPotionStrengthMult")->getFloat();
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// build quantified effect list
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for (std::set<EffectKey>::const_iterator iter (effects.begin()); iter!=effects.end(); ++iter)
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{
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const ESM::MagicEffect *magicEffect =
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MWBase::Environment::get().getWorld()->getStore().magicEffects.find (iter->mId);
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if (magicEffect->mData.mBaseCost<=0)
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throw std::runtime_error ("invalid base cost for magic effect " + iter->mId);
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float fPotionT1MagMul =
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MWBase::Environment::get().getWorld()->getStore().gameSettings.find ("fPotionT1MagMul")->getFloat();
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if (fPotionT1MagMul<=0)
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throw std::runtime_error ("invalid gmst: fPotionT1MagMul");
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float fPotionT1DurMult =
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MWBase::Environment::get().getWorld()->getStore().gameSettings.find ("fPotionT1DurMult")->getFloat();
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if (fPotionT1DurMult<=0)
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throw std::runtime_error ("invalid gmst: fPotionT1DurMult");
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float magnitude = magicEffect->mData.mFlags && ESM::MagicEffect::NoMagnitude ?
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1 : (x / fPotionT1MagMul) / magicEffect->mData.mBaseCost;
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float duration = magicEffect->mData.mFlags && ESM::MagicEffect::NoDuration ?
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1 : (x / fPotionT1DurMult) / magicEffect->mData.mBaseCost;
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if (!(magicEffect->mData.mFlags && ESM::MagicEffect::NoMagnitude))
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applyTools (magicEffect->mData.mFlags, magnitude);
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if (!(magicEffect->mData.mFlags && ESM::MagicEffect::NoDuration))
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applyTools (magicEffect->mData.mFlags, duration);
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duration = static_cast<int> (duration+0.5);
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magnitude = static_cast<int> (magnitude+0.5);
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if (magnitude>0 && duration>0)
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{
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ESM::ENAMstruct effect;
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effect.mEffectID = iter->mId;
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effect.mSkill = effect.mAttribute = iter->mArg; // somewhat hack-ish, but should work
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effect.mRange = 0;
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effect.mArea = 0;
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effect.mDuration = duration;
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effect.mMagnMin = effect.mMagnMax = magnitude;
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mEffects.push_back (effect);
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}
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}
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}
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const ESM::Potion *MWMechanics::Alchemy::getRecord() const
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{
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}
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void MWMechanics::Alchemy::removeIngredients()
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{
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}
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void MWMechanics::Alchemy::addPotion (const std::string& name)
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{
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}
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void MWMechanics::Alchemy::increaseSkill()
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{
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}
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float MWMechanics::Alchemy::getChance() const
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{
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const CreatureStats& creatureStats = MWWorld::Class::get (mAlchemist).getCreatureStats (mAlchemist);
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const NpcStats& npcStats = MWWorld::Class::get (mAlchemist).getNpcStats (mAlchemist);
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return
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(npcStats.getSkill (ESM::Skill::Alchemy).getModified() +
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0.1 * creatureStats.getAttribute (1).getModified()
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+ 0.1 * creatureStats.getAttribute (7).getModified());
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}
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void MWMechanics::Alchemy::setAlchemist (const MWWorld::Ptr& npc)
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{
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mNpc = npc;
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mAlchemist = npc;
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mIngredients.resize (4);
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@ -19,6 +263,8 @@ void MWMechanics::Alchemy::setAlchemist (const MWWorld::Ptr& npc)
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std::fill (mTools.begin(), mTools.end(), MWWorld::Ptr());
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mEffects.clear();
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MWWorld::ContainerStore& store = MWWorld::Class::get (npc).getContainerStore (npc);
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for (MWWorld::ContainerStoreIterator iter (store.begin (MWWorld::ContainerStore::Type_Apparatus));
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@ -61,9 +307,10 @@ MWMechanics::Alchemy::TIngredientsIterator MWMechanics::Alchemy::endIngredients(
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void MWMechanics::Alchemy::clear()
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{
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mNpc = MWWorld::Ptr();
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mAlchemist = MWWorld::Ptr();
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mTools.clear();
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mIngredients.clear();
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mEffects.clear();
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}
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int MWMechanics::Alchemy::addIngredient (const MWWorld::Ptr& ingredient)
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@ -87,12 +334,69 @@ int MWMechanics::Alchemy::addIngredient (const MWWorld::Ptr& ingredient)
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mIngredients[slot] = ingredient;
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updateEffects();
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return slot;
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}
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void MWMechanics::Alchemy::removeIngredient (int index)
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{
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if (index>=0 && index<static_cast<int> (mIngredients.size()))
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{
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mIngredients[index] = MWWorld::Ptr();
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updateEffects();
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}
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}
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MWMechanics::Alchemy::TEffectsIterator MWMechanics::Alchemy::beginEffects() const
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{
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return mEffects.begin();
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}
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MWMechanics::Alchemy::TEffectsIterator MWMechanics::Alchemy::endEffects() const
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{
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return mEffects.end();
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}
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std::string MWMechanics::Alchemy::getPotionName() const
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{
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if (const ESM::Potion *potion = getRecord())
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return potion->mName;
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return "";
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}
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MWMechanics::Alchemy::Result MWMechanics::Alchemy::create (const std::string& name)
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{
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if (mTools[ESM::Apparatus::MortarPestle].isEmpty())
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return Result_NoMortarAndPestle;
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int ingredients = 0;
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for (TIngredientsIterator iter (beginIngredients()); iter!=endIngredients(); ++iter)
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if (!iter->isEmpty())
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++ingredients;
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if (ingredients<2)
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return Result_LessThanTwoIngredients;
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if (name.empty() && getPotionName().empty())
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return Result_NoName;
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if (beginEffects()==endEffects())
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return Result_NoEffects;
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if (getChance()<std::rand()/static_cast<double> (RAND_MAX)*100)
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{
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removeIngredients();
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return Result_RandomFailure;
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}
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addPotion (name);
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removeIngredients();
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increaseSkill();
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return Result_Success;
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}
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@ -2,11 +2,16 @@
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#define GAME_MWMECHANICS_ALCHEMY_H
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#include <vector>
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#include <set>
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#include <components/esm/effectlist.hpp>
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#include "../mwworld/ptr.hpp"
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namespace MWMechanics
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{
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struct EffectKey;
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/// \brief Potion creation via alchemy skill
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class Alchemy
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{
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@ -18,11 +23,52 @@ namespace MWMechanics
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typedef std::vector<MWWorld::Ptr> TIngredientsContainer;
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typedef TIngredientsContainer::const_iterator TIngredientsIterator;
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typedef std::vector<ESM::ENAMstruct> TEffectsContainer;
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typedef TEffectsContainer::const_iterator TEffectsIterator;
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enum Result
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{
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Result_Success,
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Result_NoMortarAndPestle,
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Result_LessThanTwoIngredients,
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Result_NoName,
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Result_NoEffects,
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Result_RandomFailure
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};
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private:
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MWWorld::Ptr mNpc;
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MWWorld::Ptr mAlchemist;
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TToolsContainer mTools;
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TIngredientsContainer mIngredients;
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TEffectsContainer mEffects;
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std::set<EffectKey> listEffects() const;
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///< List all effects of all used ingredients.
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void filterEffects (std::set<EffectKey>& effects) const;
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///< Filter out effects not shared by all ingredients.
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void applyTools (int flags, float& value) const;
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void updateEffects();
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const ESM::Potion *getRecord() const;
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///< Return existing recrod for created potion (may return 0)
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void removeIngredients();
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///< Remove selected ingredients from alchemist's inventory, cleanup selected ingredients and
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/// update effect list accordingly.
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void addPotion (const std::string& name);
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///< Add a potion to the alchemist's inventory.
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void increaseSkill();
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///< Increase alchemist's skill.
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float getChance() const;
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///< Return chance of success.
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public:
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@ -49,6 +95,20 @@ namespace MWMechanics
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void removeIngredient (int index);
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///< Remove ingredient from slot (calling this function on an empty slot is a no-op).
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TEffectsIterator beginEffects() const;
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TEffectsIterator endEffects() const;
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std::string getPotionName() const;
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///< Return the name of the potion that would be created when calling create (if a record for such
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/// a potion already exists) or return an empty string.
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Result create (const std::string& name);
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///< Try to create a potion from the ingredients, place it in the inventory of the alchemist and
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/// adjust the skills of the alchemist accordingly.
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/// \param name must not be an empty string, unless there is already a potion record (
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/// getPotionName() does not return an empty string).
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};
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}
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@ -14,6 +14,8 @@ struct MagicEffect
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enum Flags
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{
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NoDuration = 0x4,
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NoMagnitude = 0x8,
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Negative2 = 0x10,
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SpellMaking = 0x0200,
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Enchanting = 0x0400,
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Negative = 0x0800 // A harmful effect. Will determine whether
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