using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.AI;

​

[RequireComponent(typeof(NavMeshAgent))]

public class Enemy : Character

{

    protected Transform player;

    protected NavMeshAgent agent;

​

    [Header("System Attack")]

    [SerializeField] protected float agroRange;    

    [SerializeField] protected bool meleeAttack;

    [SerializeField] protected bool rangedAttack;

    protected float distanceToPlayer;

​

    [Header("Attack System - Melee")]

    [SerializeField] protected float meleeAttackDamage; 

    [SerializeField] protected float meleeAttackRate; 

    [SerializeField] protected float meleeAttackRange;    

    protected float meleeAttackTime = 0f;

    [Header("Attack System - Ranged")]

    [SerializeField] protected float rangedAttackDamage;

    [SerializeField] protected float rangedAttackRate; 

    [SerializeField] protected float rangedAttackRange;    

    protected float rangedAttackTime = 0f;

​

​

​

    protected override void Awake()

    {

        base.Awake();

​

        player = GameObject.FindGameObjectWithTag("Player").transform;

        agent = GetComponent<NavMeshAgent>();

    }

    protected override void Update()

    {

        base.Update();

​

        EnemyAI();

    }

​

    protected virtual void EnemyAI()

    {

        distanceToPlayer = Vector3.Distance(transform.position, player.position);

​

        if (distanceToPlayer <= agroRange) //Can see player

        {

            if(meleeAttack || rangedAttack)

            {

                Attack();

            }            

            else

            {

                //Follow

                Follow();

            }

        }

        else

        {

            //Idle Action

            IdleAction();

        }

    }

​

    protected virtual void Attack()

    {

        if (distanceToPlayer <= meleeAttackRange && meleeAttack) //Can attack player (Melee)

        {

            //Attack

            MeleeAttack();

        }

        else if (distanceToPlayer <= rangedAttackRange && rangedAttack) //Can attack player (Ranged)

        {

            //Attack

            RangedAttack();

        }

    }

​

    protected virtual void MeleeAttack()

    {

        agent.SetDestination(transform.position);

​

        if(Time.time >= meleeAttackTime)

        {

            meleeAttackTime = Time.time + (1f / meleeAttackRate);

            Debug.Log("MeleeAttack");

        }

    }

    protected virtual void RangedAttack()

    {

        agent.SetDestination(transform.position);

​

        if (Time.time >= rangedAttackTime)

        {

            rangedAttackTime = Time.time + (1f / rangedAttackRate);

            Debug.Log("RangedAttack");

        }

    }

​

    protected virtual void Follow()

    {

        agent.SetDestination(player.position);

    }

​

    protected virtual void IdleAction()

    {

        agent.SetDestination(transform.position);

    }

}

​