AICntrl

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

public class AICntrl : MonoBehaviour
{
    public Seek s;
    public Canvas C;
    public Transform PlayerTrail, Trail, Player;
    [HideInInspector]
    public Transform TrailStart;
    public Attacking Attk;
    public Rigidbody2D RB2D;
    public string Name;
    public Animator Anim;
    public float Speed;
    //[HideInInspector]
    public Vector2 Move;
    public bool CanMove, SpotedPlayer, PlayerisTrail;
    [HideInInspector]
    public bool followPlayer, canChangeDir;
    int faceDir;
    private void Start()
    {
        C.worldCamera = GameObject.Find("PlayerCam").GetComponent<Camera>();
        Player = GameObject.Find("PlayerCntrl").transform;
        canChangeDir = true;
        StartCoroutine("DoMove");
        Wait = 3;
    }

    void Update()
    {

        if (followPlayer)
        {
            CanMove = false;
            transform.position = Vector2.MoveTowards(transform.position, TrailStart.position, Speed * Time.deltaTime);
            if (TrailStart.transform.position.y < transform.position.y)
            {
                faceDir = 0;
            }
            else
            {
                faceDir = 1;
            }
            if (faceDir == 3)
            {
                WalkLeft();
            }
            else
            {
                if (faceDir == 2)
                {
                    WalkRight();
                }
                else
                {
                    if (faceDir == 1)
                    {
                        WalkUp();
                    }
                    else
                    {
                        WalkDown();
                    }
                }
            }

        }
        else
        {
            if (canChangeDir)
            {
                RB2D.AddForce(Move, ForceMode2D.Force);
                CanMove = true;
            }

        }
    }
    private void OnCollisionEnter2D(Collision2D collision)
    {
        if (SpotedPlayer && collision.transform.tag == "wall")
        {
            SpotedPlayer = false;
            followPlayer = false;
            s.GetComponent<BoxCollider2D>().size = new Vector2(5, 5);
            s.GetComponent<BoxCollider2D>().enabled = true;
            Wait = 3;
        }

    }

    int MoveDir, Chance;
    public int Wait;

    public IEnumerator DoMove()
    {
        while (true)
        {
            yield return new WaitForSeconds(Wait);
            if (CanMove && canChangeDir)
            {
                Chance = Random.Range(0, 4);
                if (Chance == 2)
                {
                    MoveDir = Random.Range(0, 5);
                    if (MoveDir == 1)
                    {
                        //Move Up
                        Move.y = Speed;
                        WalkUp();
                    }
                    else
                    {
                        if (MoveDir == 2)
                        {
                            //Move Down
                            Move.y = -Speed;
                            WalkDown();
                        }
                        else
                        {
                            if (MoveDir == 3)
                            {
                                //Move Left
                                Move.x = -Speed;
                                WalkLeft();
                            }
                            else
                            {
                                if (MoveDir == 4)
                                {
                                    //Move Right
                                    Move.x = Speed;
                                    WalkRight();
                                }
                                else
                                {
                                    //Idle
                                    Move.x = 0;
                                    Move.y = 0;
                                }
                            }
                        }
                    }
                }

            }
            else
            {
                if (!PlayerisTrail)
                {
                    var newTrail = GameObject.Instantiate(Trail, Player.transform.position, Player.transform.rotation);
                    TrailStart.transform.position = newTrail.transform.position;
                }
                else
                {
                    //Player is near and I stick close to him, start attacking
                    Chance = Random.Range(0, 2);
                    if (Chance == 1)
                    {
                        if (faceDir == 1)
                        {
                            Attk.AttackUp();
                        }
                        else
                        {
                            Attk.AttackDown();
                        }
                    }

                }

            }
        }
    }

    void WalkLeft()
    {
        if (!Attk.isAttking)
        {
            Anim.Play(Name + "WalkLeft");
        }

    }

    void WalkRight()
    {
        if (!Attk.isAttking)
        {
            Anim.Play(Name + "WalkRight");
        }

    }

    void WalkUp()
    {
        if (!Attk.isAttking)
        {
            Anim.Play(Name + "WalkUp");
        }

    }

    void WalkDown()
    {
        if (!Attk.isAttking)
        {
            Anim.Play(Name + "WalkDown");
        }

    }

    void IdleDown()
    {
        StopAttk();
        if (Move.x == 0 && Move.y == 0)
        {
            Anim.Play(Name + "IdleDown");
        }
    }

    void IdleUp()
    {
        StopAttk();
        if (Move.x == 0 && Move.y == 0)
        {
            Anim.Play(Name + "IdleUp");
        }
    }

    void IdleLeft()
    {
        StopAttk();
        if (Move.x == 0 && Move.y == 0)
        {
            Anim.Play(Name + "IdleLeft");
        }
    }

    void IdleRight()
    {
        StopAttk();
        if (Move.x == 0 && Move.y == 0)
        {
            Anim.Play(Name + "IdleRight");
        }
    }

    public void StopAttk()
    {
        Attk.isAttking = false;
    }
}