How to make a function wait untill a specific bool is true?

Questions & Answers
1

Here’s a piece of code that i want to execute but how can i wait for a specific bool to be true inside a function

bool one = false;
bool two = false;
public bool A(){
	if (B())
		return true;
	else 
		return false;		
}
private bool B(){
	one = false;//1
	StartCoroutine (C ());//2
	// I need to wait until bool two is true and then return one
	yield return one;//5

}
private IEnumerator C (){
	two = false;//3
	yield return new WaitForSeconds (1f);
	if(something is true)
		one = true;
	else
		one = false;
	yield return one;
	two = true;//4

}

My current execution order is 1,2,5,3,4 but i need the execution order as 1,2,3,4,5.
Please Help??

2

I think you’re looking for

yield return new WaitUntil( () => B() );

// where B is your boolean method.

In your case, use

yield return new WaitUntil( () => two == true );

3

Further to your real code, here is how I would do it. I haven’t tested the following code though.

#region Checking For Internet
public void CheckForInternet( System.Action onInternetAvailable, System.Action onInternetUnavailable )
{
    if( !IsInternetReachable() )
    {
        if( onInternetUnavailable != null )
            onInternetUnavailable();
        return ;
    }
    
    StartCoroutine( CheckForInternetConnectivityIEnum( onInternetAvailable, onInternetUnavailable ) ) ;
}

private bool IsInternetReachable()
{
    return Application.internetReachability == NetworkReachability.ReachableViaCarrierDataNetwork || Application.internetReachability == NetworkReachability.ReachableViaLocalAreaNetwork ;
}

System.Collections.IEnumerator CheckForInternetConnectivityIEnum(System.Action onInternetAvailable, System.Action onInternetUnavailable)
{
    WWW www = new WWW ("some api which gives sucess 1");
    yield return www;
    if ( www.error == null )
    {
        JsonData jsonDat = JsonMapper.ToObject (www.text);
        Debug.Log( "Login API success = " + jsonDat["success"] );
        if ( jsonDat["success"].ToString() == "1" )
        {
            if( onInternetAvailable != null )
                onInternetAvailable();
        }
        else
        {
            if( onInternetUnavailable != null )
                onInternetUnavailable();
        }
    }
    else if( onInternetUnavailable != null )
        onInternetUnavailable();
}
#endregion

And call it as follow :

public void Foo()
{
    CheckForInternet( OnInternetAvailable, OnInternetUnavailable ) ;
}
public void OnInternetAvailable()
{
    Debug.Log("Internet is available");
}
public void OnInternetUnavailable ()
{
    Debug.LogWarning("Internet is unavailable");
}

#INITIAL ANSWER

I don’t think what you are trying to achieve is possible without more coroutines and callbacks. Here is my suggestion:

    bool one = false;
    bool two = false;
    public void A( System.Action<bool> onResultFetched )
    {
        StartCoroutine( B( onResultFetched ) );
    }
    private System.Collections.IEnumerator B( System.Action<bool> onResultFetched )
    {
        one = false;
        yield return StartCoroutine( C() );
        onResultFetched.Invoke( one );
    }
    private System.Collections.IEnumerator C()
    {
        two = false;
        yield return new WaitForSeconds( 1f );
        if ( something is true )
            one = true;
        else
            one = false;
        two = true;
    }

And then, you call A with a callback:

    private void Test()
    {
        A( ( result ) => Debug.Log( result ) );
    }