DCGO/Assets/Scripts/CardEffect/ST9/Green/ST9_09.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using Photon;
using System;
using Photon.Pun;

public class ST9_09 : CEntity_Effect
{
    public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
    {
        List<ICardEffect> cardEffects = new List<ICardEffect>();

        if (timing == EffectTiming.None)
        {
            ChangeCostClass changeCostClass = new ChangeCostClass();
            changeCostClass.SetUpICardEffect($"Play Cost -1", CanUseCondition, card);
            changeCostClass.SetUpChangeCostClass(changeCostFunc: ChangeCost, cardSourceCondition: CardSourceCondition, rootCondition: RootCondition, isUpDown: isUpDown, isCheckAvailability: () => false, isChangePayingCost: () => true);

            cardEffects.Add(changeCostClass);

            bool CanUseCondition(Hashtable hashtable)
            {
                if (card.Owner.HandCards.Contains(card))
                {
                    if (CardEffectCommons.HasMatchConditionOwnersPermanent(card, (permanent) => permanent.IsDigimon && permanent.TopCard.CardColors.Contains(CardColor.Blue)))
                    {
                        return true;
                    }
                }

                return false;
            }



            int ChangeCost(CardSource cardSource, int Cost, SelectCardEffect.Root root, List<Permanent> targetPermanents)
            {
                if (CardSourceCondition(cardSource))
                {
                    if (RootCondition(root))
                    {
                        if (PermanentsCondition(targetPermanents))
                        {
                            Cost -= 1;
                        }
                    }
                }

                return Cost;
            }

            bool PermanentsCondition(List<Permanent> targetPermanents)
            {
                if (targetPermanents == null)
                {
                    return true;
                }

                else
                {
                    if (targetPermanents.Count((targetPermanent) => targetPermanent != null) == 0)
                    {
                        return true;
                    }
                }

                return false;
            }

            bool CardSourceCondition(CardSource cardSource)
            {
                return cardSource == card;
            }

            bool RootCondition(SelectCardEffect.Root root)
            {
                if (root == SelectCardEffect.Root.Hand)
                {
                    return true;
                }

                return false;
            }

            bool isUpDown()
            {
                return true;
            }
        }

        if (timing == EffectTiming.OnAllyAttack)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect("Draw 1", CanUseCondition, card);
            activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
            activateClass.SetIsInheritedEffect(true);
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[When Attacking] If you have a blue Digimon in play, <Draw 1>. (Draw 1 card from your deck.)";
            }

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

            bool CanActivateCondition(Hashtable hashtable)
            {
                if (CardEffectCommons.IsExistOnBattleArea(card))
                {
                    if (CardEffectCommons.HasMatchConditionOwnersPermanent(card, (permanent) => permanent.IsDigimon && permanent.TopCard.CardColors.Contains(CardColor.Blue)))
                    {
                        if (card.Owner.LibraryCards.Count >= 1)
                        {
                            return true;
                        }
                    }
                }

                return false;
            }

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                yield return ContinuousController.instance.StartCoroutine(new DrawClass(card.Owner, 1, activateClass).Draw());
            }
        }

        return cardEffects;
    }
}