I am writing a shooting game in cocos2d. And each enemy enters the screen after the current one is dead. I have stores the enemies and their properties in plist. I need to save the current state of the game. If any phone call comes the game should be started from the current state.

So, I usedNsUserDefaults in this way,

- (void) applicationDidFinishLaunching:(UIApplication*)application
{
   ...
   NSUserDefaults *myDefaultOptions = [[myDefaultOptions stringForKey:@"enemyNumber"]intValue] ;
//tempCount4 is the current Enemy number. It was declared in another class. I am using extern and using the value here.
  tempCount4 = [[myDefaultOptions stringForKey:@"enemyNumber"]intValue] ;
}


- (void)applicationWillTerminate:(UIApplication *)application {
    [[CCDirector sharedDirector] end];
    [myDefaultOptions setObject:tempCount4 forKey:@"enemyNumber"];
}  

The control is not entering in to the

(void)applicationWillTerminate:(UIApplication *)application  

when I pressed the Home button.

And when I touched the game icon on the screen the game is running from first screen and in log (terminal )it is not showing any values.

And what should I store to resume my game from stored state.

Can you explain where I was wrong ?
Thank You.