cocos2d for iPhone

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

1. 

   yuen
   Member

   I have many object running and there is one quit button when clicked the game will pause and there will be a prompt message ask whether 'YES'/'NO' (to quit or not). If I click yes the game will quit else the game will resume back from the pause state.

   Posted 2 years ago #
2. 

   Korki696
   Member

   Hey yuen,
   Are you running some type of main loop? if so you can do something like:
   [self unschedule: @selector(mainLoop:)];
   -Lars

   Posted 2 years ago #
3. 

   yuen
   Member

   mainLoop? sorry i dont get it.

   Here is my code:

   @implementation attack
   -(id)init
   {
   if((self=[super init]))
   {

   // her for quit
   //=======================================================================

   [MenuItemFont setFontSize:20];
   [MenuItemFont setFontName:@"TrebuchetMS-Bold"];

   MenuItem *quit=[MenuItemFont itemFromString:@"Quit" target:self selector:@selector(newLocalScore:)];
   menu=[Menu menuWithItems:quit,nil];
   menu.position=ccp(225,35);
   [self addChild:menu];

   }
   return self;
   }
   //quit
   -(void)newLocalScore:(id)sender
   {

   //pause(); <- do i need to do this? the game pause but every object on the screen were pause! :-(

   UIAlertView* dialog = [[UIAlertView alloc] init];
   [dialog setDelegate:self];
   [dialog setTitle:@"Quit"];
   [dialog setMessage:@"Do you want to Quit?"];
   [dialog addButtonWithTitle:@"Yes"];
   [dialog addButtonWithTitle:@"No"];
   [dialog show];
   [dialog release];

   }
   - (void) alertView:(UIAlertView *)alert clickedButtonAtIndex:(NSInteger)buttonIndex
   {
   if(buttonIndex==0) {
   //do stuff
   Scene *quit_scene=[Scene node];
   [quit_scene addChild:[layerMenu node]];
   [[Director sharedDirector] replaceScene:[FadeTransition transitionWithDuration:0.5f scene:quit_scene ]];
   }

   }

   @end

   Posted 2 years ago #
4. 

   natanavra
   Member

   Well from what you showed us there isn't really a game.
   Games usually have a gameLoop, it's a scheduled method that gets called every frame or every predefined number of seconds. This method is responsible to updating the game state, including: moving objects around, check for collisions, etc...

   What Korki meant is that whenever the user clicks the quit button, you unschedule the method, so the game doesn't move - nothing gets updated.

   Cocos2D uses the schedule method, where the CocosNode knows how to summon a method every sometime (explained above), to create such a method you can use:

   [self schedule:@selector(gameLoop:) interval:0.5];
   //self is a reference to the class you call the method to, gameLoop is the method called, interval is the time

   If the user clicks quit, in quit method implement:

   [self unscheduleSelector:@selector(gameLoop:)];

   I really think you should read up some more about game programming and obj-C, and check out the Wiki - Riq has a nice thing going there.
   Hope this helps somehow.

   Posted 2 years ago #
5. 

   Nicke
   Member

   This is the way I do it:

   // Pause button pressed.
   
   UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Paused" message:@"Press the button to..." delegate:self cancelButtonTitle:@"Resume" otherButtonTitles:nil];
   [alert show];
   [[Director sharedDirector] pause];

   And later on:
   

   -(void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
   
   	[[Director sharedDirector] resume];
   
   }

   // Nicke

   Posted 2 years ago #
6. 

   yuen
   Member

   thanks Nicke ...
   that is work..

   and thanks for natanava ,..

   Posted 2 years ago #

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