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

public class MoveCommand : CharacterCommand
{
    private const float MIN_DISTANCE = 0.1f;
    /// <summary>
    /// assume that character's move speed = 2 m/s
    /// </summary>
    private const float SPEED = 2f;

    public Vector2 targetPos { get; private set; }

    private Animator anim;
    private Transform transform;

    public MoveCommand(GameObject owner, Vector2 targetPos) : base(owner)
    {
        this.targetPos = targetPos;
        anim = owner.GetComponent<Animator>();
        transform = owner.transform;
    }


    public override IEnumerator Excecute()
    {
        if (anim == null)
            yield break;

        //TODO: Play anim Move here.

        while (Vector2.Distance(transform.position, targetPos) > MIN_DISTANCE)
        {
            Vector2 direction = (targetPos - new Vector2(transform.position.x, transform.position.y)).normalized;
            owner.transform.Translate(direction * SPEED * Time.deltaTime);
            yield return null;
        }

        Debug.Log("MoveFinish");
    }

}