Hệ thống Nhiệm vụ Đơn giản

/* --- QuestGoal.cs --- */
[System.Serializable]
public class QuestGoal
{
    public GoalType goalType;
    public int requiredAmount;
    public int currentAmount;

    public bool IsReached() { return (currentAmount >= requiredAmount); }
    public void EnemyKilled() { if (goalType == GoalType.Kill) currentAmount++; }
    public void ItemCollected() { if (goalType == GoalType.Gather) currentAmount++; }
}

public enum GoalType { Kill, Gather }

/* --- Quest.cs (ScriptableObject) --- */
using UnityEngine;

[CreateAssetMenu(fileName = "New Quest", menuName = "Quests/Quest")]
public class Quest : ScriptableObject
{
    public string title;
    public string description;
    public int experienceReward;
    public bool isCompleted;
    public QuestGoal goal;
}

/* --- QuestGiver.cs (Gắn vào NPC) --- */
using UnityEngine;

public class QuestGiver : MonoBehaviour
{
    public Quest quest;
    public PlayerQuest playerQuest;

    public void GiveQuest()
    {
        playerQuest.quest = quest;
        // Mở UI nhiệm vụ và cập nhật thông tin
        Debug.Log("New Quest: " + quest.title);
    }
}

/* --- PlayerQuest.cs (Gắn vào Player) --- */
using UnityEngine;

public class PlayerQuest : MonoBehaviour
{
    public Quest quest;

    public void EnemyKilled()
    {
        if (quest != null && !quest.isCompleted)
        {
            quest.goal.EnemyKilled();
            if (quest.goal.IsReached())
            {
                CompleteQuest();
            }
        }
    }

    void CompleteQuest()
    {
        quest.isCompleted = true;
        // Thưởng cho người chơi
        Debug.Log("Quest '" + quest.title + "' completed!");
        // Xóa quest hoặc đánh dấu đã hoàn thành trong UI
    }
}