ModernUO/Projects/Scripts/Engines/Quests/Core/QuestObjective.cs

using System.Collections.Generic;
using Server.Gumps;
using Server.Items;
using Server.Mobiles;
using Server.Network;

namespace Server.Engines.Quests
{
  public abstract class QuestObjective
  {
    private int m_CurProgress;

    public abstract object Message{ get; }

    public virtual int MaxProgress => 1;
    public virtual QuestItemInfo[] Info => null;

    public QuestSystem System{ get; set; }

    public bool HasBeenRead{ get; set; }

    public int CurProgress
    {
      get => m_CurProgress;
      set
      {
        m_CurProgress = value;
        CheckCompletionStatus();
      }
    }

    public bool HasCompleted{ get; set; }

    public virtual bool Completed => m_CurProgress >= MaxProgress;

    public bool IsSingleObjective => MaxProgress == 1;

    public virtual void BaseDeserialize(IGenericReader reader)
    {
      int version = reader.ReadEncodedInt();

      switch (version)
      {
        case 1:
        {
          HasBeenRead = reader.ReadBool();
          goto case 0;
        }
        case 0:
        {
          m_CurProgress = reader.ReadEncodedInt();
          HasCompleted = reader.ReadBool();

          break;
        }
      }

      ChildDeserialize(reader);
    }

    public virtual void ChildDeserialize(IGenericReader reader)
    {
      int version = reader.ReadEncodedInt();
    }

    public virtual void BaseSerialize(IGenericWriter writer)
    {
      writer.WriteEncodedInt(1); // version

      writer.Write(HasBeenRead);
      writer.WriteEncodedInt(m_CurProgress);
      writer.Write(HasCompleted);

      ChildSerialize(writer);
    }

    public virtual void ChildSerialize(IGenericWriter writer)
    {
      writer.WriteEncodedInt(0); // version
    }

    public virtual void Complete()
    {
      CurProgress = MaxProgress;
    }

    public virtual void RenderMessage(BaseQuestGump gump)
    {
      gump.AddHtmlObject(70, 130, 300, 100, Message, BaseQuestGump.Blue, false, false);
    }

    public virtual void RenderProgress(BaseQuestGump gump)
    {
      gump.AddHtmlObject(70, 260, 270, 100, Completed ? 1049077 : 1049078, BaseQuestGump.Blue, false, false);
    }

    public virtual void CheckCompletionStatus()
    {
      if (Completed && !HasCompleted)
      {
        HasCompleted = true;
        OnComplete();
      }
    }

    public virtual void OnRead()
    {
    }

    public virtual bool GetTimerEvent() => !Completed;

    public virtual void CheckProgress()
    {
    }

    public virtual void OnComplete()
    {
    }

    public virtual bool GetKillEvent(BaseCreature creature, Container corpse) => !Completed;

    public virtual void OnKill(BaseCreature creature, Container corpse)
    {
    }

    public virtual bool IgnoreYoungProtection(Mobile from) => false;
  }

  public class QuestLogUpdatedGump : BaseQuestGump
  {
    private QuestSystem m_System;

    public QuestLogUpdatedGump(QuestSystem system) : base(3, 30)
    {
      m_System = system;

      AddPage(0);

      AddImage(20, 5, 1417);

      AddHtmlLocalized(0, 78, 120, 40, 1049079, White); // Quest Log Updated

      AddImageTiled(0, 78, 120, 40, 2624);
      AddAlphaRegion(0, 78, 120, 40);

      AddButton(30, 15, 5575, 5576, 1);
    }

    public override void OnResponse(NetState sender, RelayInfo info)
    {
      if (info.ButtonID == 1)
        m_System.ShowQuestLog();
    }
  }

  public class QuestObjectivesGump : BaseQuestGump
  {
    private List<QuestObjective> m_Objectives;

    public QuestObjectivesGump(QuestObjective obj) : this(new List<QuestObjective>{ obj })
    {
    }

    public QuestObjectivesGump(List<QuestObjective> objectives) : base(90, 50)
    {
      m_Objectives = objectives;

      Closable = false;

      AddPage(0);

      AddImage(0, 0, 3600);
      AddImageTiled(0, 14, 15, 375, 3603);
      AddImageTiled(380, 14, 14, 375, 3605);
      AddImage(0, 376, 3606);
      AddImageTiled(15, 376, 370, 16, 3607);
      AddImageTiled(15, 0, 370, 16, 3601);
      AddImage(380, 0, 3602);
      AddImage(380, 376, 3608);

      AddImageTiled(15, 15, 365, 365, 2624);
      AddAlphaRegion(15, 15, 365, 365);

      AddImage(20, 87, 1231);
      AddImage(75, 62, 9307);

      AddHtmlLocalized(117, 35, 230, 20, 1046026, Blue); // Quest Log

      AddImage(77, 33, 9781);
      AddImage(65, 110, 2104);

      AddHtmlLocalized(79, 106, 230, 20, 1049073, Blue); // Objective:

      AddImageTiled(68, 125, 120, 1, 9101);
      AddImage(65, 240, 2104);

      AddHtmlLocalized(79, 237, 230, 20, 1049076, Blue); // Progress details:

      AddImageTiled(68, 255, 120, 1, 9101);
      AddButton(175, 355, 2313, 2312, 1);

      AddImage(341, 15, 10450);
      AddImage(341, 330, 10450);
      AddImage(15, 330, 10450);
      AddImage(15, 15, 10450);

      AddPage(1);

      for (int i = 0; i < objectives.Count; ++i)
      {
        QuestObjective obj = objectives[objectives.Count - 1 - i];

        if (i > 0)
        {
          AddButton(55, 346, 9909, 9911, 0, GumpButtonType.Page, 1 + i);
          AddHtmlLocalized(82, 347, 50, 20, 1043354, White); // Previous

          AddPage(1 + i);
        }

        obj.RenderMessage(this);
        obj.RenderProgress(this);

        if (i > 0)
        {
          AddButton(317, 346, 9903, 9905, 0, GumpButtonType.Page, i);
          AddHtmlLocalized(278, 347, 50, 20, 1043353, White); // Next
        }
      }
    }

    public override void OnResponse(NetState sender, RelayInfo info)
    {
      for (int i = m_Objectives.Count - 1; i >= 0; --i)
      {
        QuestObjective obj = m_Objectives[i];

        if (!obj.HasBeenRead)
        {
          obj.HasBeenRead = true;
          obj.OnRead();
        }
      }
    }
  }
}