Interval timer in Unity using UniRx (Reactive Extensions).

• Start a new Unity project and call it UniRxIntervalTest
• Import UniRx from the Asset Store

You should now find a UniRx folder in your project:

• Create a Cube
• Create an empty game object and call it ‘app’
• Select ‘app’

• Add an empty script to the app game object and call it ‘App’
• Open the script and replace the code with:

using System;
using UniRx;
using UnityEngine;

public class App : MonoBehaviour
{
public GameObject Cube;
private IDisposable _update;

void Start()
{
_update = Observable.Interval(TimeSpan.FromMilliseconds(1000)).Subscribe(x => // x starts from 0 and is incremented everytime the stream pushes another item.
{
    Cube.transform.rotation = UnityEngine.Random.rotation;
});
}

private void OnDestroy()
{
_update.Dispose();
}
}

In the code above, the result of Observable.Interval (an IDisposable) is stored in a member to properly dispose when the MonoBehavior is destroyed.

• Drag the Cube to the Inspector

• Press Play to see the cube rotate every second.