koobas.hobune.stream
Trouble with Moving an Enemy back and forth
So I made a enemy walk back and forth using IEnumerator
public float speed;
Rigidbody2D rbody;
public float timer;
public float directionx;
public float directiony;
public bool canMove = true;
// Use this for initialization
void Start () {
rbody = GetComponent<Rigidbody2D> ();
StartCoroutine (Move(timer));
}
IEnumerator Move(float timer){
if (!canMove) {
rbody.velocity = Vector2.zero;
yield break;
}
while (canMove == true) {
Vector2 targetVelocity = new Vector2 (directionx, directiony);
rbody.velocity = targetVelocity * speed;
yield return new WaitForSeconds (timer);
Vector2 targetVelocity1 = new Vector2 (-directionx, -directiony);
rbody.velocity = targetVelocity1 * speed;
yield return new WaitForSeconds (timer);
}
}
}
However, my problem is I want the enemy to stop immediately when killed hence the canMove bool. With my current code, when I fire off the canMove bool, the enemy won't stop and is stuck forever moving one way. I can kinda see why this is happening but I'm not sure how to fix it. Maybe IEnumerators isn't the right way to go? Any help is greatly appreciated.
Indeed, using a coroutine here may not be the best option, unless you add a while( true ) around the body of the function. I suggest you the FixedUpdate instead.
Following code not tested:
public float speed;
Rigidbody2D rbody;
float time;
public float timer;
public float directionx;
public float directiony;
public bool canMove = true;
// Use this for initialization
void Start () {
rbody = GetComponent<Rigidbody2D> ();
}
private FixedUpdate()
{
if (!canMove)
{
rbody.velocity = Vector2.zero;
return;
}
Vector2 targetVelocity = Mathf.Repeat( time, timer * 2 ) < timer ?
new Vector2 (directionx, directiony) :
new Vector2 (-directionx, -directiony);
rbody.velocity = targetVelocity * speed;
time += Time.fixedDeltaTime;
}
Thank you for answering! Everything is working fine except the enemy never changes direction(the timer doesn't go down either). I'm unfamiliar with $$anonymous$$athf.Repeat so I'm not sure how to fix it.
I forgot to increase time variable my bad. I am on my mobile, so could not test it. Hope it fixes!
