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POGenerate an event X numbers of times per second but not evenly spaced within each second
 

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  1. POGenerate an event X numbers of times per second but not evenly spaced within each second
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    <p>I'd like to write a class that will fire an event <code>x</code> a pre-defined numbers of times per second call it <code>n</code>.</p> <p>However, I would like <code>x</code> <strong>NOT</strong> to fire evenly spaced within each second.</p> <p>So, say <code>n</code> = 100, 25 might fire in the first 300ms then a further 50 over the next 600ms and the final 25 in the remaining 100ms.</p> <p>Ideally, I'd like better granularity then that presented above and a greater range of spacing within each second.</p> <p>I'm wondering if I would be able to create an array with defined millisecond and how many events to fire. Then use a loop and the <code>Stopwatch</code> class to determine whether the defined events for that millisecond waypoint should be fired.</p> <p>The question is, could the array be calculated for each second fast enough, each second should have random spacing.</p> <p>Obviously, the event would need to be Asynchronous to avoid getting delayed by what ever is wired up to it.</p> <p>Anyone come across any similar need?</p> <h2>UPDATE</h2> <p>I thought I'd at least put my initial effort on here.</p> <p>So I found that there is enough resolution to check which millisecond you are currently in and which second. Basically, each second I rebuild my spacing each millisecond gets an entry in the array and each entry says how many times to fire the event that millisecond.</p> <p>My issue is the spacing...I needs a better way to try and clump the event count, currently this jsut seems to plonk them in evenly spaced in either 0, 1 or 2.</p> <pre><code>public delegate void EmptyEventDelegate(); public class RandEvent { public event EmptyEventDelegate OnEvent = delegate { }; private bool running = false; Random r = new Random(); private int eventsPS; public RandEvent(int eventsPS = 1) { this.eventsPS = eventsPS; } public void Start() { running = true; Task.Factory.StartNew(() =&gt; { Run(); }); } private void Run() { var sw = new Stopwatch(); sw.Start(); int currentSecond = 0; int[] eventCount = BuildEventSpacing(); while(running) { if (currentSecond != sw.Elapsed.Seconds) { currentSecond = sw.Elapsed.Seconds; eventCount = BuildEventSpacing(); } else { for(int i = 0; i &lt; eventCount[sw.Elapsed.Milliseconds]; i++) OnEvent(); } } sw.Stop(); } private int[] BuildEventSpacing() { var array = new int[1000]; for (int i = 0; i &lt; eventsPS; i++) { array[r.Next(0, 999)]++; } return array; } public void Stop() { running = false; } } </code></pre>
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    1. COI remember a similar kind of problem here: http://stackoverflow.com/questions/10178299/get-a-randomized-aberrancy-around-given-value/10178487#10178487. The basic idea is that you space all the events an "average" of (1000ms / x), but you shift them random distances away from the average. They are somewhat evenly spaced, but still relatively random. The linked question generates a random list that sums to a total, so if you generated a list summing to 1, you could interpret each entry as the number of `ms` to wait between events.
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      1. USmellamokb
    2. COHave you looked at the timer class? http://msdn.microsoft.com/en-us/library/system.timers.timer.aspx
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      1. POGenerate an event X numbers of times per second but not evenly spaced within each second
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    3. COYou're going to have a really tough time getting any of the .NET timers to fire 100 times per second. See http://www.informit.com/guides/content.aspx?g=dotnet&seqNum=815. If you want better resolution, you'll have to wrap one of the system timer objects. See http://www.informit.com/guides/content.aspx?g=dotnet&seqNum=817 for one example.
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      1. USJim Mischel
 

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