MWMechanics::Alchemy::Result MWMechanics::Alchemy::create (const std::string& name)
{
if (mTools[ESM::Apparatus::MortarPestle].isEmpty())
return Result_NoMortarAndPestle;
if (countIngredients()<2)
return Result_LessThanTwoIngredients;
if (name.empty())
return Result_NoName;
if (listEffects().empty())
return Result_NoEffects;
if (beginEffects() == endEffects())
{
// all effects were nullified due to insufficient skill
removeIngredients();
return Result_RandomFailure;
}
if (getAlchemyFactor() < OEngine::Misc::Rng::roll0to99())
{
removeIngredients();
return Result_RandomFailure;
}
addPotion (name);
removeIngredients();
increaseSkill();
return Result_Success;
}
std::string MWMechanics::Alchemy::suggestPotionName()
{
std::set<MWMechanics::EffectKey> effects = listEffects();
if (effects.empty())
return "";
int effectId = effects.begin()->mId;
return MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find(
ESM::MagicEffect::effectIdToString(effectId))->getString();
}
void MWMechanics::Alchemy::updateEffects()
{
mEffects.clear();
mValue = 0;
if (countIngredients()<2 || mAlchemist.isEmpty() || mTools[ESM::Apparatus::MortarPestle].isEmpty())
return;
// find effects
std::set<EffectKey> effects (listEffects());
// general alchemy factor
float x = getAlchemyFactor();
x *= mTools[ESM::Apparatus::MortarPestle].get<ESM::Apparatus>()->mBase->mData.mQuality;
x *= MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find ("fPotionStrengthMult")->getFloat();
// value
mValue = static_cast<int> (
x * MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find ("iAlchemyMod")->getFloat());
// build quantified effect list
for (std::set<EffectKey>::const_iterator iter (effects.begin()); iter!=effects.end(); ++iter)
{
const ESM::MagicEffect *magicEffect =
MWBase::Environment::get().getWorld()->getStore().get<ESM::MagicEffect>().find (iter->mId);
if (magicEffect->mData.mBaseCost<=0)
{
std::ostringstream os;
os << "invalid base cost for magic effect " << iter->mId;
throw std::runtime_error (os.str());
}
float fPotionT1MagMul =
MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find ("fPotionT1MagMult")->getFloat();
if (fPotionT1MagMul<=0)
throw std::runtime_error ("invalid gmst: fPotionT1MagMul");
float fPotionT1DurMult =
MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find ("fPotionT1DurMult")->getFloat();
if (fPotionT1DurMult<=0)
throw std::runtime_error ("invalid gmst: fPotionT1DurMult");
float magnitude = magicEffect->mData.mFlags & ESM::MagicEffect::NoMagnitude ?
1 : (x / fPotionT1MagMul) / magicEffect->mData.mBaseCost;
float duration = magicEffect->mData.mFlags & ESM::MagicEffect::NoDuration ?
1 : (x / fPotionT1DurMult) / magicEffect->mData.mBaseCost;
if (!(magicEffect->mData.mFlags & ESM::MagicEffect::NoMagnitude))
applyTools (magicEffect->mData.mFlags, magnitude);
if (!(magicEffect->mData.mFlags & ESM::MagicEffect::NoDuration))
applyTools (magicEffect->mData.mFlags, duration);
duration = roundf(duration);
magnitude = roundf(magnitude);
if (magnitude>0 && duration>0)
{
ESM::ENAMstruct effect;
effect.mEffectID = iter->mId;
effect.mAttribute = -1;
effect.mSkill = -1;
if (magicEffect->mData.mFlags & ESM::MagicEffect::TargetSkill)
effect.mSkill = iter->mArg;
else if (magicEffect->mData.mFlags & ESM::MagicEffect::TargetAttribute)
effect.mAttribute = iter->mArg;
effect.mRange = 0;
effect.mArea = 0;
effect.mDuration = static_cast<int>(duration);
effect.mMagnMin = effect.mMagnMax = static_cast<int>(magnitude);
mEffects.push_back (effect);
}
}
}