bool ActiveSpells::addSpell (const std::string& id)
{
const ESM::EffectList& effects = getEffectList (id);
bool found = false;
for (std::vector<ESM::ENAMstruct>::const_iterator iter (effects.list.begin());
iter!=effects.list.end(); ++iter)
{
if (iter->duration)
{
found = true;
break;
}
}
if (!found)
return false;
TContainer::iterator iter = mSpells.find (id);
float random = static_cast<float> (std::rand()) / RAND_MAX;
if (iter==mSpells.end())
mSpells.insert (std::make_pair (id,
std::make_pair (MWBase::Environment::get().getWorld()->getTimeStamp(), random)));
else
iter->second = std::make_pair (MWBase::Environment::get().getWorld()->getTimeStamp(), random);
mSpellsChanged = true;
return true;
}
void ActiveSpells::update() const
{
bool rebuild = false;
MWWorld::TimeStamp now = MWBase::Environment::get().getWorld()->getTimeStamp();
if (mLastUpdate!=now)
{
TContainer::iterator iter (mSpells.begin());
while (iter!=mSpells.end())
if (!timeToExpire (iter))
{
mSpells.erase (iter++);
rebuild = true;
}
else
++iter;
mLastUpdate = now;
}
if (mSpellsChanged)
{
mSpellsChanged = false;
rebuild = true;
}
if (rebuild)
{
mEffects = MagicEffects();
for (TIterator iter (begin()); iter!=end(); ++iter)
{
const ESM::EffectList& effects = getEffectList (iter->first);
const MWWorld::TimeStamp& start = iter->second.first;
float magnitude = iter->second.second;
for (std::vector<ESM::ENAMstruct>::const_iterator iter (effects.list.begin());
iter!=effects.list.end(); ++iter)
{
if (iter->duration)
{
MWWorld::TimeStamp end = start;
end += static_cast<double> (iter->duration)*
MWBase::Environment::get().getWorld()->getTimeScaleFactor()/(60*60);
if (end>now)
{
EffectParam param;
param.mMagnitude = static_cast<int> (
(iter->magnMax-iter->magnMin+1)*magnitude + iter->magnMin);
mEffects.add (*iter, param);
}
}
}
}
}
}
void EffectGroup::changed(ConstFieldMaskArg whichField,
UInt32 origin,
BitVector details)
{
Inherited::changed(whichField, origin, details);
if((whichField & EffectListFieldMask) || (whichField & ParentSceneObjectFieldMask))
{
for(UInt32 i(0); i < getMFEffectList()->size(); ++i)
{
getEffectList(i)->setParentSceneObject(const_cast<SceneObject*>(getParentSceneObject()));
}
}
}
double ActiveSpells::timeToExpire (const TIterator& iterator) const
{
const ESM::EffectList& effects = getEffectList (iterator->first);
int duration = 0;
for (std::vector<ESM::ENAMstruct>::const_iterator iter (effects.list.begin());
iter!=effects.list.end(); ++iter)
{
if (iter->duration>duration)
duration = iter->duration;
}
double scaledDuration = duration *
MWBase::Environment::get().getWorld()->getTimeScaleFactor()/(60*60);
double usedUp = MWBase::Environment::get().getWorld()->getTimeStamp()-iterator->second.first;
if (usedUp>=scaledDuration)
return 0;
return scaledDuration-usedUp;
}
