protected void SelectPreviousTrait(CustomPawn customPawn, int traitIndex)
{
Trait currentTrait = customPawn.GetTrait(traitIndex);
ComputeDisallowedTraits(customPawn, currentTrait);
int index = -1;
if (currentTrait != null)
{
index = providerTraits.Traits.FindIndex((Trait t) => {
return(t.Label.Equals(currentTrait.Label));
});
}
int count = 0;
do
{
index--;
if (index < 0)
{
index = providerTraits.Traits.Count - 1;
}
if (++count > providerTraits.Traits.Count + 1)
{
index = -1;
break;
}
}while (index != -1 && (customPawn.HasTrait(providerTraits.Traits[index]) || disallowedTraitDefs.Contains(providerTraits.Traits[index].def)));
Trait newTrait = null;
if (index > -1)
{
newTrait = providerTraits.Traits[index];
}
TraitUpdated(traitIndex, newTrait);
}