DCGO/Assets/Scripts/CardEffect/BT20/Green/BT20_004.cs

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

namespace DCGO.CardEffects.BT20
{
    public class BT20_004 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Your Turn - ESS
            if (timing == EffectTiming.OnEnterFieldAnyone)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Digivolve, for reduced cost of 2", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, 1, true, EffectDiscription());
                activateClass.SetIsInheritedEffect(true);
                activateClass.SetHashString("Digivolve_BT20-004");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[Your Turn] [Once Per Turn] When any of your Digimon with the [ACCEL] trait are played, this Digimon may digivolve into a Digimon card with the [ACCEL] trait in the hand with the digivolution cost reduced by 2.";
                }

                bool IsYourAccelDigimon(Permanent permanent)
                {
                    return CardEffectCommons.IsPermanentExistsOnOwnerBattleAreaDigimon(permanent, card) &&
                           permanent.TopCard.EqualsTraits("ACCEL");
                }

                bool IsYourAccelDigivolve(CardSource source)
                {
                    return source.EqualsTraits("ACCEL") &&
                           source.CanPlayCardTargetFrame(card.PermanentOfThisCard().PermanentFrame, true,activateClass);
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.IsOwnerTurn(card))
                    {
                        return CardEffectCommons.IsExistOnBattleAreaDigimon(card) &&
                               CardEffectCommons.CanTriggerOnPermanentPlay(hashtable, IsYourAccelDigimon);
                    }

                    return false;
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(card) &&
                           CardEffectCommons.HasMatchConditionOwnersHand(card, IsYourAccelDigivolve);
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.DigivolveIntoHandOrTrashCard(
                                targetPermanent: card.PermanentOfThisCard(),
                                cardCondition: IsYourAccelDigivolve,
                                payCost: true,
                                reduceCostTuple: (reduceCost: 2, reduceCostCardCondition: null),
                                fixedCostTuple: null,
                                ignoreDigivolutionRequirementFixedCost: -1,
                                isHand: true,
                                activateClass: activateClass,
                                successProcess: null));
                }
            }
            #endregion

            return cardEffects;
        }
    }
}