problem with WaitForSeconds()

Unity Engine
1

Hi,
in my c# code i want to destroy an object and instantiate it after some time again.
the problem: the object gets destroyed but not instantiated anymore. can anyone tell me whats wrong with my code?

using UnityEngine;
using System.Collections;

public class InvisiblePlatform : MonoBehaviour {

// Use this for initialization
void Start () {
StartCoroutine(DestroyPlatform());
}

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

}

private float platformInvisibleTime = 10f;

IEnumerator DestroyPlatform()
{
GameObject Platform = this.gameObject;
while(true){

Destroy(gameObject);
yield return new WaitForSeconds(platformInvisibleTime);

Instantiate(Platform);

yield return new WaitForSeconds(platformInvisibleTime);
}
}

}

2

You destroy the game object. So the script on the game object stops running.

You can either move the script onto a controller object and destroy the platform from there. Or if you just want to have the object disappear and reappear change the script to this:

using UnityEngine;
using System.Collections;

public class InvisiblePlatform : MonoBehaviour {
	
// Use this for initialization
void Start () {
StartCoroutine(DestroyPlatform());
}

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


}

private float platformInvisibleTime = 10f;

IEnumerator DestroyPlatform() 
{
GameObject Platform = this.gameObject;
while(true){
 
this.gameObject.renderer.enabled = false;    //This hides the mesh 
this.gameObject.collider.enabled = false;     //This disables the collider so no object can hit it
			
yield return new WaitForSeconds(platformInvisibleTime);

this.gameObject.renderer.enabled = true;       //Shows the mesh again
this.gameObject.collider.enabled = true;        //Enables the collider so objects can hit it
yield return new WaitForSeconds(platformInvisibleTime);
}
}

}
3

Thanks so much, now it works perfectly :slight_smile: