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Spell priority: check spell resistance, check if actor is already has a non-magnitude effect

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This commit is contained in:
Andrei Kortunov 2017-05-03 10:35:56 +04:00
parent 9f1527b7da
commit d598809ac6
1 changed files with 55 additions and 8 deletions
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63
apps/openmw/mwmechanics/aicombataction.cpp
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@ -266,6 +266,23 @@ namespace MWMechanics
case ESM::MagicEffect::Chameleon:
return 0.f;
case ESM::MagicEffect::Sound:
{
if (enemy.isEmpty())
return 0.f;
// there is no need to cast sound if enemy is not able to cast spells
CreatureStats& stats = enemy.getClass().getCreatureStats(enemy);
if (stats.getMagicEffects().get(ESM::MagicEffect::Silence).getMagnitude() > 0)
return 0.f;
if (stats.getMagicEffects().get(ESM::MagicEffect::Paralyze).getMagnitude() > 0)
return 0.f;
break;
}
case ESM::MagicEffect::RestoreAttribute:
return 0.f; // TODO: implement based on attribute damage
case ESM::MagicEffect::RestoreSkill:
@ -383,22 +400,52 @@ namespace MWMechanics
break;
}
// TODO: for non-cumulative effects (e.g. paralyze), check if the enemy is already suffering from them
// TODO: could take into account enemy's resistance/weakness against the effect
const ESM::MagicEffect* magicEffect = MWBase::Environment::get().getWorld()->getStore().get<ESM::MagicEffect>().find(effect.mEffectID);
rating *= magicEffect->mData.mBaseCost;
if (!(magicEffect->mData.mFlags & ESM::MagicEffect::NoMagnitude))
if (magicEffect->mData.mFlags & ESM::MagicEffect::Harmful)
{
rating *= -1.f;
if (enemy.isEmpty())
return 0.f;
// Check resistance for harmful effects
CreatureStats& stats = enemy.getClass().getCreatureStats(enemy);
float resistance = MWMechanics::getEffectResistanceAttribute(effect.mEffectID, &stats.getMagicEffects());
rating *= (1.f - std::min(resistance, 100.f) / 100.f);
}
// for harmful no-magnitude effects (e.g. silence) check if enemy is already has them
// for non-harmful no-magnitude effects (e.g. bound items) check if actor is already has them
if (magicEffect->mData.mFlags & ESM::MagicEffect::NoMagnitude)
{
if (magicEffect->mData.mFlags & ESM::MagicEffect::Harmful)
{
CreatureStats& stats = enemy.getClass().getCreatureStats(enemy);
if (stats.getMagicEffects().get(effect.mEffectID).getMagnitude() > 0)
return 0.f;
}
else
{
CreatureStats& stats = actor.getClass().getCreatureStats(actor);
if (stats.getMagicEffects().get(effect.mEffectID).getMagnitude() > 0)
return 0.f;
}
}
else
{
rating *= (effect.mMagnMin + effect.mMagnMax)/2.f;
}
if (!(magicEffect->mData.mFlags & ESM::MagicEffect::NoDuration))
rating *= effect.mDuration;
if (magicEffect->mData.mFlags & ESM::MagicEffect::Harmful)
rating *= -1.f;
// Currently treating all "on target" or "on touch" effects to target the enemy actor.
// Combat AI is egoistic, so doesn't consider applying positive effects to friendly actors.
if (effect.mRange != ESM::RT_Self)