Timeout.cs

using System;
using System.Threading;
using UnityEngine;

public readonly struct Timeout {
    public Timeout(Action callback, float seconds, MonoBehaviour invoker) {
        ImplWToken(callback, seconds, invoker.destroyCancellationToken);
    }
    async readonly void ImplWToken(Action callback, float seconds, CancellationToken token) {
        try {
            if (token.IsCancellationRequested) return;
            await Awaitable.WaitForSecondsAsync(seconds, token);
            if (token.IsCancellationRequested) return;
            callback?.Invoke();
        } catch {}
    }
    
    /// <summary>
    /// USE CONTSTRUCTOR WITH TOKEN PARAMETER IF POSSIBLE
    /// </summary>
    public Timeout(Action callback, float seconds) {
        ImplNoToken(callback, seconds);
    }
    async readonly void ImplNoToken(Action callback, float seconds) {
        try {
            await Awaitable.WaitForSecondsAsync(seconds);
            callback?.Invoke();
        } catch {}
    }
}