Hi,
Im trying to delay the tracking of my missile for 3 seconds after launch, however the coroutine will not execute the tracking after 3 seconds even though the debug.log appears after 3 seconds. Here is the code.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class andanotherhomingmissile : MonoBehaviour
{
public Transform target;
public Rigidbody RocketRgb;
public float turnspeed = 1f;
public float flyspeed = 10f;
private Transform rocketlocaltrans;
// Start is called before the first frame update
void Start()
{
if (!target)
Debug.Log("please set the rocket target");
rocketlocaltrans = GetComponent<Transform>();
StartCoroutine(Begintracking());
}
// Update is called once per frame
private void FixedUpdate()
{
if (!RocketRgb)
return;
RocketRgb.velocity = rocketlocaltrans.forward * flyspeed;
}
public IEnumerator Begintracking()
{
yield return new WaitForSeconds(3f);
var TargetRot = Quaternion.LookRotation(target.position - rocketlocaltrans.position);
RocketRgb.MoveRotation(Quaternion.RotateTowards(rocketlocaltrans.rotation, TargetRot, turnspeed));
Debug.Log("Begintracking");
}
}
Try to use invoke:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class andanotherhomingmissile : MonoBehaviour
{
public Transform target;
public Rigidbody RocketRgb;
public float turnspeed = 1f;
public float flyspeed = 10f;
private Transform rocketlocaltrans;
// Start is called before the first frame update
void Start()
{
if (!target)
Debug.Log("please set the rocket target");
rocketlocaltrans = GetComponent<Transform>();
Invoke("Begintracking", 2f) ;
}
// Update is called once per frame
private void FixedUpdate()
{
if (!RocketRgb)
return;
RocketRgb.velocity = rocketlocaltrans.forward * flyspeed;
}
public void Begintracking()
{
var TargetRot = Quaternion.LookRotation(target.position - rocketlocaltrans.position);
RocketRgb.MoveRotation(Quaternion.RotateTowards(rocketlocaltrans.rotation, TargetRot, turnspeed));
Debug.Log("Begintracking");
}
}`
If your console is logging the Debug.Log("Begintracking") then clearly this is not an issue with how you’re calling your IEnumerator, so no worries there. Your issue is that you’re only rotating on one single frame 3 seconds after start. An IEnumerator does not inherently repeat anymore times than it’s told to, its just a method that can run async, whether that be one or infinite times.
So, either you mean to set the rotation to the target rotation once after 3 seconds or, more likely, you mean to repeatedly iterate your `IEnumerator` to face the coordinates and *home in on your target* after an initial 3 second wait:
public class andanotherhomingmissile : MonoBehaviour
{
public Transform target;
public Rigidbody RocketRgb;
public float turnSpeed = 180f;
public float flyspeed = 10f;
private Transform rocketlocaltrans;
// Start is called before the first frame update
void Start()
{
if (!target)
Debug.Log("please set the rocket target");
rocketlocaltrans = GetComponent<Transform>();
StartCoroutine(Begintracking());
}
// Update is called once per frame
private void FixedUpdate()
{
if (!RocketRgb)
return;
RocketRgb.velocity = rocketlocaltrans.forward * flyspeed;
}
public IEnumerator Begintracking()
{
yield return new WaitForSeconds(3f);
Debug.Log("Begintracking");
Quaternion TargetRot = Quaternion.identity;
while(true)
{
TargetRot = Quaternion.LookRotation(target.position - rocketlocaltrans.position);
RocketRgb.MoveRotation(Quaternion.RotateTowards(rocketlocaltrans.rotation, TargetRot, turnSpeed * Time.deltaTime));
yield return null;
}
}
}
It's worth noting that the `while(true)...yield return null;` means that this coroutine will repeat continuously until it's told to do something else, but I'll leave that up to you. Hope this helps!