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POC#: Edge Cases when removing a subset of a day from a TimeSpan on a daily basis
 

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  1. POC#: Edge Cases when removing a subset of a day from a TimeSpan on a daily basis
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    <p>I'm trying to determine a TimeSpan (eg., time between logout and login), but with the caveat that a part of each day shouldn't be counted (eg., don't count the time between 7PM and 7AM on a given day). Removing that time from full days is easy enough, but what's the best way to check for parts of a day (eg., user logs out at 6PM and logs back in at 8PM the same day) and other edge cases?</p> <p>ETA: I've currently got a set-up that looks like this:</p> <pre><code>public class HasProductiveHours { //These fields should represent an hour of the day (in 24-hour format) // in which production should start or stop. public int startProductiveHour; public int endProductiveHour; //Resource type enum public ResourceType resourceType //How often this resource is collected, in seconds public float harvestTime public HasProductiveHours (int startProductiveHour, int endProductiveHour, ResourceType resourceType, int harvestTime) { // Other creation-time things this.startProductiveHour = startProductiveHour; this.endProductiveHour = endProductiveHour; this.resourceType = resourceType; this.harvestTime = harvestTime; TimeSimulator.Instance.SimulateElapsedTime (this); } } </code></pre> <p>Instances of this class and its children are simulating production of some resource every hour or so (depending on the resource). There's a system in place to simulate elapsed time since the user's last logout.</p> <pre><code>DateTime lastLogoutTime; public void Logout () { // Other logout things lastLogoutTime = DateTime.Now; } public void SimulateElapsedTime (HasProductiveHours toSimulate) { DateTime currentTime = DateTime.Now; TimeSpan timeSinceLogout = currentTime - lastLogout; int unproductiveHours = Math.Abs (toSimulate.startProductionHour - toSimulate.endProductionHour) * timeSinceLogout.Days; timeSinceLogout.Subtract (new TimeSpan (unproductiveHours, 0, 0); double secondsElapsed = timeSinceLogout.TotalSeconds; int harvestsElapsed = (int)(secondsElapsed / toSimulate.harvestTime); PlayerData.Instance.AddResource (toSimulate.resourceType, harvestsElapsed); } </code></pre>
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    1. USDenys Séguret
    1. USburnumd
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    1. COYou haven't really given us enough of a feeling of what your API looks like to be able to help you properly.
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      1. POC#: Edge Cases when removing a subset of a day from a TimeSpan on a daily basis
      1. USJon Skeet
 

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