cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   GTC
   Member

   Hi,

   Is there any auto-called function when usb cable plugged in just like applicatonDidBecomeActive?

   I'm now working with box2d and when I plugged usb cable in, b2bodys got bumped and crashed so I might have to pause when it plugged in,

   Any solution would be appreciate.

   Thanks

   Posted 1 year ago #
2. 

   GTC
   Member

   Any comment would be appreciate :)

   Thanks

   Posted 1 year ago #
3. 

   liquidfire
   Member

   Is there any auto-called function when usb cable plugged in just like applicatonDidBecomeActive?

   [edited]: Yes, well sort of. If you enable battery monitoring ([UIDevice currentDevice].batteryMonitoringEnabled = YES) then you can query for the battery state ([UIDevice currentDevice].batteryState) and if it is UIDeviceBatteryStateCharging or UIDeviceBatteryStateFull, then the device is plugged in. You would have to poll for this, though, since as far as I know, there isn't any sort of notification that alerts when the state has changed.

   I'm now working with box2d and when I plugged usb cable in, b2bodys got bumped and crashed so I might have to pause when it plugged in,

   I'm confused, so your game crashes when you plug in the USB cord? If so, then that has nothing to do with Box2D, and you should probably look into the root of the problem.

   Posted 1 year ago #
4. 

   GTC
   Member

   [edited]: Yes, well sort of. If you enable battery monitoring ([UIDevice currentDevice].batteryMonitoringEnabled = YES) then you can query for the battery state ([UIDevice currentDevice].batteryState) and if it is UIDeviceBatteryStateCharging or UIDeviceBatteryStateFull, then the device is plugged in. You would have to poll for this, though, since as far as I know, there isn't any sort of notification that alerts when the state has changed.

   Thanks, I must try it. But to use this, as you said I have to use polling for only this, should make overhead a little bit.

   I'm confused, so your game crashes when you plug in the USB cord? If so, then that has nothing to do with Box2D, and you should probably look into the root of the problem.

   No, I mean not being crashed the program but objects(b2body and etc) in b2world. ;) sorry for making you confusing!

   Posted 1 year ago #
5. 

   zaaroth
   Member

   It is still a bit confusing. I will give a blind try. Perhaps its a timestep issue? When the USB gets plugged the processor might hang a bit changing the framerate and thus, depending on your box2d timestep, affecting your physics?

   Posted 1 year ago #

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