我如何让敌人的AI面对玩家

Question

I'm trying to find a way to rotate the enemy towards the player. Currently it follows/stops and shoots the player. Have not figured out how to make it rotate. Please help if you can. I've tried couple of different things on here but they dont seem to work.

I've tried creating a Flip function with isFacingRight.

private bool facingRight;
public float speed;
public float stoppingDistance;
public float retreatDistance;
private Animator enemyAnimation;
private bool isDead;
private float direction;
public static bool enemyShoot = false;

private float timeBtwShots;
public float startTimeBtwShots;

public GameObject projectile;
private Transform player;

[SerializeField]
private Stat health;

private void Awake()
{
    health.Initialize();
}


// Start is called before the first frame update
void Start()
{
    //Player tag
    player = GameObject.FindGameObjectWithTag("Player").transform;

    enemyAnimation = GetComponent<Animator>();


    isDead = false;
}

// Update is called once per frame
void Update()
{

    if (Vector2.Distance(transform.position, player.position) > stoppingDistance)
    {
        transform.position = Vector2.MoveTowards(transform.position, player.position, speed * Time.deltaTime);
        timeBtwShots = startTimeBtwShots;


  if(player.position.x > transform.position.x && !facingRight) //if the target is to the right of enemy and the enemy is not facing right
    Flip();
 if(player.position.x < transform.position.x && facingRight)
    Flip();
    }
   else if (Vector2.Distance(transform.position,player.position) <= stoppingDistance && Vector2.Distance(transform.position,player.position)>retreatDistance)
    {
        transform.position = this.transform.position;


    }
    else if (Vector2.Distance(transform.position, player.position) > retreatDistance)
    {
        transform.localScale = new Vector2(-1f, 1f);
        transform.position = Vector2.MoveTowards(transform.position, player.position, -speed * Time.deltaTime);
        timeBtwShots = 100;
        enemyAnimation.SetTrigger("Attack");
    }

    if (enemyShoot == true)
    {
        //Stops animation Loop
        enemyShoot = false;
        enemyAnimation.SetTrigger("Shoot");


    }

    if (timeBtwShots <= 0)
    {
        Instantiate(projectile, transform.position, Quaternion.identity);
        timeBtwShots = startTimeBtwShots;
    }
    else
    {
        timeBtwShots -= Time.deltaTime;
    }


    if (health.CurrentVal == 0)
    {

        timeBtwShots = 100;
        FindObjectOfType<SoundsScript>().Play("SaibaDeath");
        isDead = true;
        enemyAnimation.SetBool("Dead", isDead);
        Destroy(gameObject, 2f);
    }
}

private void OnTriggerEnter2D(Collider2D other)
{
    if (other.tag == "ProjectileEnem")
    {
        health.CurrentVal -= 50;
        enemyAnimation.SetTrigger("Hurt");
    }

}

//Disables enemeies when off screen
private void OnBecameInvisible()
{
    GetComponent <Enemy> ().enabled = false;
}
//Re enables enemies once they are visible
private void OnBecameVisible()
{
    GetComponent<Enemy>().enabled = true;
}

void Flip(){
      Vector3 scale = transform.localScale;
      scale.x *= -1;
      transform.localScale = scale;
      facingRight = !facingRight;
}

}

Answer 1

Try this:

spriteRenderer.flipX = transform.position.x < player.position.x;

SpriteRenderer contains the flipX and flipY property, you do not need to create your own Flip() function.

You need a reference to the SpriteRenderer on your GameObject.

The above code is assuming that your sprite faces left on default. If your sprite faces right normally, change the < to > .