Provide compiler define for UniTask library to replace use of Task

[Soren025]

Library in question: https://github.com/Cysharp/UniTask

The main reason I suggest this is due to how native C# tasks continue to execute in the editor even after you exit play mode. The UniTask library implements tasks to run against the Unity update loop meaning tasks will be ignored once you exit play mode.

You can experience what I am referring to by executing a HTTPRequest using WaitForResponseAsync on an endpoint you know will take a few seconds and then exit play mode.

Or just run this in the editor...

public class Test : MonoBehaviour
{
    private void Start()
    {
        Run();
        Application.Quit();
    }
    
    private async void Run()
    {
        await Task.Delay(5000);
        Debug.Log("Stuff happened outside play mode");
    }
}

[isaac-mcfadyen]

+1, this would be great especially since UniTasks are actually lighter than regular Tasks

[Benedicht]

Added to v3.