In Unity, limit reaction to an action only once every 1 second?

Question

In a Scene in Unity3D, how can I make code react to an action only once every one second in a MonoBehaviour in the runloop?

Answer 1

If you're in a Unity3D environment, stop reading and look at Joe Blow's answer. Otherwise, continue reading.

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You could use a Stopwatch to time your events. Create one Stopwatch as a private field/property and initialize it from your constructor:

public YourClass()
{
    ScoreStopwatch = new Stopwatch();
    ScoreStopwatch.Start();
    // Other initialization...
}

private Stopwatch ScoreStopwatch { get; set; }

Then you can use the Elapsed property to get the time since your last score increase, like this:

if(Input.GetMouseButtonUp(0) && ScoreStopwatch.Elapsed.TotalSeconds > 1)
{
    score++;
    ScoreStopwatch.Reset();
    ScoreStopwatch.Start();
}