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

public abstract class Skill : MonoBehaviour
{
    protected Character self;
    public int manaCost;
    public int movementCost;
    public int damage;
    protected SkillManager skillManager;
    protected BuffManager buffManager;
    protected List<Character> alliesInRange = new List<Character>();
    protected List<Character> enemiesInRange = new List<Character>();
    protected CharacterUIManager characterUIManager;
    public string description;
    public string skillName;
    private void Awake()
    {
        self = transform.parent.parent.GetComponent<Character>();
        skillManager = transform.parent.GetComponent<SkillManager>();
        buffManager = self.transform.Find("BuffManager").GetComponent<BuffManager>();
        characterUIManager = transform.parent.parent.Find("CharacterUI").GetComponent<CharacterUIManager>();
        Revise();
    }
    public void SetRotation(Vector2 direction)
    {
        if(direction == Vector2.up)
        transform.localEulerAngles = new Vector3(0,0,180);
        if(direction == Vector2.right)
        transform.localEulerAngles = new Vector3(0,0,90);
        if(direction == Vector2.down)
        transform.localEulerAngles = new Vector3(0,0,0);
        if(direction == Vector2.left)
        transform.localEulerAngles = new Vector3(0,0,-90);
    }
    protected void Update()
    {
        if(Input.GetKeyDown("c"))
        {
            gameObject.SetActive(false);
            transform.parent.Find("SkillsGUI").gameObject.SetActive(true);
        }
        if(Input.GetKeyDown("z"))
        {
            if(ApplyRequestion())
            {
                self.ChangeMovement(-movementCost);
                self.ChangeMana(-manaCost);
                skillManager.currentSkill.RemoveSkillState();
                ApplySkill();
                ApplySkillState();
            }
            else
                characterUIManager.FloatingString("状态不满足");
            gameObject.SetActive(false);
            self.SetIsUsingSkill(false);
            self.weaponManager.gameObject.SetActive(true);
        }
    }
    //关闭显示攻击范围
    protected void OnTriggerExit2D(Collider2D other)
    {
        if(other.gameObject.layer == 8)
        {
            Cell cell = other.gameObject.GetComponent<Cell>();
            cell.SetMask(false);
            if(cell.currentCharacter != null)
            {
                if(self.groupNumber != cell.currentCharacter.groupNumber)
                    enemiesInRange.Remove(cell.currentCharacter);
                else
                    alliesInRange.Remove(cell.currentCharacter);
            }
        }
    }
    protected void OnTriggerEnter2D(Collider2D other)
    {
        if(other.gameObject.layer == 8)
        {
            Cell cell = other.gameObject.GetComponent<Cell>();
            if(cell.currentCharacter != null)
            {
                if(self.groupNumber != cell.currentCharacter.groupNumber)
                    enemiesInRange.Add(cell.currentCharacter);
                else
                    alliesInRange.Add(cell.currentCharacter);
            }
        }
    }
    protected void OnTriggerStay2D(Collider2D other)
    {
        //技能有不同的攻击范围，选中角色时，可显示技能的攻击范围
        //显示攻击范围
        if(other.gameObject.layer == 8)
        {
            other.gameObject.GetComponent<Cell>().SetMask(true);
        }

    }
    protected virtual bool ApplyRequestion()
    {
        if(enemiesInRange != null  && self.GetCurrentMovement() >= movementCost
        && self.GetCurrentMana() >= manaCost)
            return true;
        return false;
    }
    public abstract void ApplySkill();
    public abstract void ApplySkillState();
    public abstract void RemoveSkillState();
    protected abstract void Revise();
}