DCGO/Assets/Scripts/CardEffect/BT9/Purple/BT9_073.cs

using System.Collections;
using System.Collections.Generic;

public class BT9_073 : CEntity_Effect
{
    public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
    {
        List<ICardEffect> cardEffects = new List<ICardEffect>();

        if (timing == EffectTiming.OnAllyAttack)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect("Digivolve this Digimon into [Undead] or [Dark Animal] Digimon", CanUseCondition, card);
            activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, true, EffectDiscription());
            activateClass.SetIsInheritedEffect(true);
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[When Attacking] This Digimon may digivolve into a Digimon card with [Undead] or [Dark Animal] in its traits from your trash for its digivolution cost.";
            }

            bool CanSelectCardCondition(CardSource cardSource)
            {
                if (cardSource.IsDigimon)
                {
                    if (cardSource.CardTraits.Contains("Undead") || cardSource.CardTraits.Contains("DarkAnimal") || cardSource.CardTraits.Contains("Dark Animal"))
                    {
                        if (cardSource.CanPlayCardTargetFrame(card.PermanentOfThisCard().PermanentFrame, false, activateClass))
                        {
                            return true;
                        }
                    }
                }

                return false;
            }

            bool CanUseCondition(Hashtable hashtable)
            {
                return CardEffectCommons.CanTriggerOnAttack(hashtable, card);
            }

            bool CanActivateCondition(Hashtable hashtable)
            {
                if (CardEffectCommons.IsExistOnBattleArea(card))
                {
                    if (CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, CanSelectCardCondition))
                    {
                        return true;
                    }
                }

                return false;
            }

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.DigivolveIntoHandOrTrashCard(
                        targetPermanent: card.PermanentOfThisCard(),
                        cardCondition: CanSelectCardCondition,
                        payCost: true,
                        reduceCostTuple: null,
                        fixedCostTuple: null,
                        ignoreDigivolutionRequirementFixedCost: -1,
                        isHand: false,
                        activateClass: activateClass,
                        successProcess: null));
            }
        }

        return cardEffects;
    }
}