onLoseFocus(), onGetFocus() events?

[farmerdwightks]

Is there some way to be notified that the game window has lost/regained its focus so that it can pause and unpause certain features of the game?  Specifically, I have a timer that is based on the current time minus a start time so I need to update the new start time when the window is in focus again.  I also, want to pause background music from playing.  The sound automatically stops playing audibly but the music is still progressing silently.

[samme]

You can use the Game#onBlur and Game#onFocus signals.

If you use Phaser timers those will pause automatically with game pauses.