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

public class AnimeApproach : MonoBehaviour
{
    [SerializeField]
    private EnemySettings enemySettings;
    private GameObject _target;

    void FixedUpdate()
    {
        if (_target == null)
        {
            _target = findTarget();
        }
        var d = Vector3.Distance(transform.position, _target.transform.position);
        if (d <= enemySettings.ApproachDistance)
        {
            return;
        }
        var dx = enemySettings.Speed * Time.fixedDeltaTime;
        var p = Vector3.MoveTowards(transform.position, _target.transform.position, dx);
        transform.position = p;
    }

    private GameObject findTarget()
    {
        var party = GameObject.FindGameObjectsWithTag("Player");
        if (party.Length == 0)
        {
            // Everyone is dead...?
            // Return self so we don't chase nothing.
            return gameObject;
        }
        // Eventually we'll want to check party threat.
        var k = Random.Range(0, party.Length);
        return party[k];
    }
}