private void PerformSpellSelections(LevelUpController controller, HashSet <int> spellHistory)
{
for (int i = 0; i < instance.SelectSpells.Length; i++)
{
BlueprintAbility spell = instance.SelectSpells[i];
if (!spellHistory.Contains(i))
{
foreach (SpellSelectionData spellSelectionData in controller.State.SpellSelections)
{
if (spellSelectionData.HasEmpty())
{
int level = spellSelectionData.SpellList.GetLevel(spell);
if (level >= 0)
{
SpellSelectionData.SpellSelectionState spellSelectionState = spellSelectionData.LevelCount[level];
BlueprintAbility[] array = ((spellSelectionState != null) ? spellSelectionState.SpellSelections : null) ?? ((spellSelectionData.ExtraMaxLevel < level) ? null : spellSelectionData.ExtraSelected);
if (array != null)
{
int slotIndex = 0;
for (int j = 0; j < array.Length; j++)
{
if (array[j] == null)
{
slotIndex = j;
break;
}
}
if (controller.SelectSpell(spellSelectionData.Spellbook, spellSelectionData.SpellList, level, spell, slotIndex))
{
spellHistory.Add(i);
break;
}
}
}
}
}
}
}
}