bool _mut_great_pred(int mut_idx)
{
if (mut_type(mut_idx) == MUT_TYPE_ACTIVATION) return FALSE;
if (mut_rating(mut_idx) == MUT_RATING_GREAT) return TRUE;
return FALSE;
}
bool _mut_avg_plus_pred(int mut_idx)
{
if (mut_type(mut_idx) == MUT_TYPE_ACTIVATION) return FALSE;
if (mut_rating(mut_idx) >= MUT_RATING_AVERAGE) return TRUE;
return FALSE;
}
bool _mut_good_plus_pred(int mut_idx)
{
if (mut_type(mut_idx) == MUT_TYPE_ACTIVATION) return FALSE;
if (mut_rating(mut_idx) >= MUT_RATING_GOOD) return TRUE;
return FALSE;
}
int _mut_prob_gain(int i)
{
int result = _mutations[i].prob;
const int racial_odds = 50;
if (result == 0)
return 0;
if (p_ptr->pclass == CLASS_BERSERKER && mut_type(i) & MUT_TYPE_ACTIVATION)
return 0;
switch (i)
{
case MUT_CHAOS_GIFT:
/* TODO: Birth Chaos Warriors with this mutation */
if (p_ptr->pclass == CLASS_CHAOS_WARRIOR)
return 0;
break;
case MUT_BAD_LUCK:
if (mut_locked(MUT_GOOD_LUCK))
return 0;
break;
case MUT_HYPN_GAZE:
if (p_ptr->prace == RACE_VAMPIRE)
return racial_odds;
break;
case MUT_HORNS:
if (p_ptr->prace == RACE_IMP)
return racial_odds;
break;
case MUT_SHRIEK:
if (p_ptr->prace == RACE_YEEK)
return racial_odds;
break;
case MUT_POLYMORPH:
if (p_ptr->prace == RACE_BEASTMAN)
return racial_odds;
break;
case MUT_TENTACLES:
if (p_ptr->prace == RACE_MIND_FLAYER)
return racial_odds;
break;
}
if ( _mutations[i].rating < MUT_RATING_AVERAGE
&& mut_present(MUT_GOOD_LUCK) )
{
result = 1;
}
if ( _mutations[i].rating > MUT_RATING_AVERAGE
&& mut_present(MUT_BAD_LUCK) )
{
result = 1;
}
return result;
}
