EnemyBase

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

public class EnemyBase : MonoBehaviour
{
     [SerializeField]
      protected float health;
      [SerializeField]
      protected float  speed;
      [SerializeField]
      protected float idleTime;
      [SerializeField]
      protected Transform [] waypoints;
      [SerializeField]
      protected int WpID;
      protected Transform targetWp;
      [SerializeField]
      protected Transform target;
      protected Animator anim;
      protected SpriteRenderer sprite;
      protected bool isHit = false;
      //Player position variable
      [SerializeField]
      protected PlayerControl player_script;
      //Distance check variable.
     [SerializeField]
      protected float d_Check;
      protected float d_ToTarget;
      protected float player_dist;
      [SerializeField]
      protected float aggroDist;
      protected Vector3 t_Direction;
      protected BoxCollider2D boxCollider2D;
      public bool isDead = false;
      [SerializeField]
      protected bool isFacingLeft;
      protected bool inCombat = false;
      protected bool inReverse;
      protected bool isAggroed;
      [SerializeField]
      protected bool isRanged;
      public bool isFlipped;
      public float deathTimer;
      public float Health{get;set;}
      //
      //public GameObject[] _lootTable;
      //public Vector3 _dropOffset;
      //protected Diamond _diamondScript;

    public virtual void Init()
     {
         anim = GetComponentInChildren<Animator>();
         sprite = GetComponentInChildren<SpriteRenderer>();
         boxCollider2D = GetComponent<BoxCollider2D>();
         inReverse = false;
         isFlipped = false;
         WpID = 0;
         if(waypoints.Length >= 2)
         {
             targetWp = waypoints[WpID];
         }
         else if(waypoints.Length < 2)
         {
             Debug.Log("Not Enough waypoints");
         }
         player_script = GameObject.FindGameObjectWithTag("Player").GetComponent<PlayerControl>();
     }
    // Start is called before the first frame update
    void Start()
    {
         Init();
    }

    // Update is called once per frame
    public virtual void Update()
    {
         /* if((anim.GetCurrentAnimatorStateInfo(0).IsName("Idle"))&& (anim.GetBool("InCombat") == false))
          {
              return;
          } */
        AILogic();
        DeathCheck();

    }


    void AILogic()
    {
        //runs code based on the bool variable "isRanged"
        if(isRanged == false)
        {
            MeleeAILogic();
        }
        else if(isRanged == true)
        {
            RangeAILogic();
        }

    }
    void RangeAILogic()
    {
        if(isDead == false)
        {
            FaceTarget();
            TargetDistanceCheck();
            if(inCombat == false)
            {
                RangedPatrolLogic();
            }
        }
    }
    void MeleeAILogic()
    {
        if(isDead == false)
            {
                if((inCombat == false)&&(waypoints.Length >= 2))
                {
                    if(isAggroed == false)
                    {
                        if(isDead == false)
                        {
                            PatrolLogic();
                        }

                        anim.SetBool("InCombat",false);
                        target = targetWp;
                    }

                }
                else if(inCombat == true)
                {
                    target = player_script.transform;
                    anim.SetBool("InCombat",true);
                    FaceTarget();

                }
                if((isAggroed == true)&&(inCombat == false))
                {
                    AggroLogic();
                }
                FaceTarget();
                TargetDistanceCheck();

            }
    }
    public virtual void DeathCheck()
     {
         if(Health == 0)
         {
             isDead = true;
         }
         if(isDead == true)
         {
             //boxCollider2D.enabled = false;
             anim.SetTrigger("Death");
             Destroy(this.gameObject,deathTimer);
             //play death anim
             //destroy this game object
         }

     }

     void AggroLogic()
     {
         FaceTarget();
         target = player_script.transform;
         if(transform.position.x != target.position.x)
         {
             transform.position = Vector3.MoveTowards(transform.position,target.position,speed * Time.deltaTime);
             anim.SetBool("IsWalking",true);
         }
     }
    public void TargetDistanceCheck()
    {
        player_dist = Vector3.Distance(transform.localPosition,player_script.transform.localPosition);
        //Debug.Log("distance to player:" + player_dist);
        if(player_dist <= d_Check)
        {
            //Debug.Log("Player target found");
            target = player_script.transform;
            FaceTarget();
            inCombat = true;
            anim.SetBool("InCombat",true);
        }
        else if(player_dist > d_Check)
        {
            //Debug.Log("Target lost");
            //target = targetWp;
            FaceTarget();
            inCombat = false;
            anim.SetBool("InCombat",false);
        }

        AggroDistanceCheck(player_dist);

    }

    void AggroDistanceCheck(float t_distance)
    {

        if(t_distance <= aggroDist)
        {
            isAggroed = true;
            //Debug.Log("Aggro'd:" + isAggroed);
        }
        else if(t_distance > aggroDist)
        {
            isAggroed = false;
            //Debug.Log("Aggro'd:" + isAggroed);
        }
        d_ToTarget = t_distance;
    }
    void RangedPatrolLogic()
    {

    }
    void PatrolLogic()
    {

            if((transform.position.x != targetWp.position.x)&&(isHit == false))
            {
                if(inCombat == false)
                {
                    anim.SetBool("IsWalking",true);
                    transform.position = Vector3.MoveTowards(transform.position,targetWp.position,speed * Time.deltaTime);
                }
            }
            if((transform.position.x == targetWp.position.x)&&(isHit == false))
            {
                if((inCombat == false)&&(inReverse == false))
                {
                    if(WpID < waypoints.Length - 1)
                    {
                        WpID++;
                        targetWp = waypoints[WpID];
                        target = targetWp;

                    }
                    else if(WpID == waypoints.Length - 1)
                    {
                        inReverse = true;
                    }
                }
                else if((inCombat == false)&&(inReverse == true))
                {
                    if(WpID > 0)
                    {
                        WpID --;
                        targetWp = waypoints[WpID];
                        target = targetWp;

                    }
                    else if(WpID == 0)
                    {
                        inReverse = false;
                    }
                }
            }



    }

    public virtual void FaceTarget()
        {
            //determine where the target is and it's distance to this object
            //determine if the target is either on the left or right of this object
            //check if this object's sprite is facing left
            //flip the sprite to face target
            if((targetWp != null)&&(isAggroed == false))
            {
                target = targetWp;
            }
            else if((targetWp == null)||(isAggroed == true))
            {
                target = player_script.transform;
            }
            t_Direction = target.localPosition - transform.localPosition;
            //Debug.Log("target direction:" + t_Direction);
            if(isFacingLeft == true)
            {
                if(t_Direction.x > 0)
                {
                    //180 rotation
                    isFlipped = true;
                    Vector3 eulerRotation = transform.rotation.eulerAngles;
                    transform.rotation = Quaternion.Euler(eulerRotation.x,180,eulerRotation.z);
                }
                else if(t_Direction.x < 0)
                {
                    //0 rotation
                    isFlipped = false;
                    Vector3 eulerRotation = transform.rotation.eulerAngles;
                    transform.rotation = Quaternion.Euler(eulerRotation.x,0,eulerRotation.z);
                }
            }
            else if(isFacingLeft == false)
            {
                if(t_Direction.x > 0)
                {
                    //0 rotation
                    isFlipped = false;
                    Vector3 eulerRotation = transform.rotation.eulerAngles;
                    transform.rotation = Quaternion.Euler(eulerRotation.x,0,eulerRotation.z);
                }
                else if(t_Direction.x < 0)
                {
                    //180 rotation
                    isFlipped = true;
                    Vector3 eulerRotation = transform.rotation.eulerAngles;
                    transform.rotation = Quaternion.Euler(eulerRotation.x,180,eulerRotation.z);
                }
            }
            //float distance = Vector3.Distance(transform.localPosition,player_script.transform.localPosition);
            //Vector3 direction = player_script.transform.localPosition - transform.localPosition;

        }
    public void Damage()
    {
        if(isDead != true)
        {
            //Enemy takes damage
        }
    }

}