cocos2d for iPhone

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

1. 

   ZebulonSwe
   Member

   Hi all,

   I've been scanning the forum like crazy, without finding anything that helps me.

   Thanks all for a great forum btw! :)

   Now to my question (I'm a Obj-c noob, so bare with me). I've been trying to figure out how to work with cocos2d, and I'm really making progree (I belive :) ). I've been using the open source game 'ABC123' as my learning ground. Everything seems to work fine, with the scenes and all, but when I try to use 'cpv' I get an error. For instance, if I use:

   -(id) init
   {
   self = [super init];

   if (self)
   {
   self.isTouchEnabled = YES;

   dataManager = [DataManager sharedManager];

   Sprite *back = [[Sprite alloc] initWithFile:@"TestBG.png"];
   self.background = back;
   [back release];

   background.transformAnchor = cpv(0,0);

   [self addChild:background];
   }
   return self;
   }

   I get the error message right after 'background.transformAnchor = cpv(0,0);' is:

   warning: implicit declaration of function 'cpv'
   error: object cannot be set - either readonly property or no setter found
   warning: type of setter 'setTransformAnchor:' must be 'void' instead of 'id'

   Thanks for any help I can get! :)

   Posted 2 years ago #
2. 

   insul
   Member

   in "cocos2d.h", add this " #import "chipmunk.h" "
   or in your file , add also be ok.

   Posted 2 years ago #
3. 

   crmagicxxx
   Member

   The problem you have is related to the fact that cpv is a funtion defined in Chipmunk files. Once ago Chipmunk was integral part of Cococs2D. Now you don't have to include Chipmunk anymore if you don't need it. So for example cpv is now ccp in cocos2D. It's all defined here CGPointExtensions http://www.cocos2d-iphone.org/api-ref/latest-stable/_c_g_point_extension_8h.html

   Posted 2 years ago #
4. 

   ZebulonSwe
   Member

   Thank you for your quick reply!

   It seems that it solved half of it :) But I still get this:
   error: object cannot be set - either readonly property or no setter found
   warning: type of setter 'setTransformAnchor:' must be 'void' instead of 'id'

   When I check the ABC123 open source, I cannot see any difference from my code. There is no @property or anything else I miss. I will have to dig deeper. But at least I got rid of: warning: implicit declaration of function 'cpv' :)

   Posted 2 years ago #
5. 

   ZebulonSwe
   Member

   It works now! :) Thank you guys!

   I write this now instead: background.anchorPoint = ccp(0,0);

   Thanks again! :)

   Posted 2 years ago #

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