cocos2d for iPhone

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

1. 

   ImpresionesWeb
   Member

   Hi,

   I´ve been reading for two days and it seems so that the best way to animate a CCSprite in a tilemap is:

   [CODE]

   CCSprite *image = (CCSprite*) [layer tileAt:tilePosition];
   [image runAction:animateAction];

   [/CODE]

   layer is a CCTMXLayer of tileMap and animateAction is a CCRepeatForever

   but that way I only get the error *** Assertion failure in -[CCSprite setTexture:]

   The action is ok, if I add it to the main layer as a normal CCSprite it works just fine.

   Is there anything I´m missing? Perhaps the tileAt:tilePosition is 32x32 and my animation is 96x64 or something like that?

   Thanks in advance for helping

   Posted 1 year ago #
2. 

   araker
   Moderator

   One thing that could go wrong is that the tile at tilePosition is empty, then tileAt will return nil.

   If that isn't the problem, could you post the code of your animateAction?

   Posted 1 year ago #
3. 

   ImpresionesWeb
   Member

   Hi, thanks.

   tileAt is not nil, in fact I can set a new position for the image, setOpacity and such things, I just can't animate it.

   The code for the action is very simple:

   --------------------
   [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:
   [NSString stringWithFormat:@"%@.plist",tipo]];

   //CCSpriteSheet *sheet = [CCSpriteSheet spriteSheetWithFile:[NSString stringWithFormat:@"%@.png",tipo]];

   int numeroFrames = 24;
   float velocidadAnimacion = 0.1;
   NSString *stringAnimacion = @"pinoanimado0";

   NSMutableArray *arrayAnimacion = [NSMutableArray array];
   for(int i = 1; i <= numeroFrames; ++i) {
   [arrayAnimacion addObject:
   [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:
   [NSString stringWithFormat:@"%@%d.png",stringAnimacion, i]]];
   }

   CCAnimation *objetoAnimacion = [CCAnimation animationWithName:@"animacion" delay:velocidadAnimacion frames:arrayAnimacion];

   CCAction *accion = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:objetoAnimacion restoreOriginalFrame:NO]];

   CCTMXLayer *layer = [tileMap layerNamed:@"Capa 0"];

   // Running this action below gives error Assertion failure in -[CCSprite setTexture:]

   imagen = (CCSprite*) [layer tileAt:posicion];
   [imagen runAction:accion];

   // THE CODE BELOW WORKS FINE
   //CCSprite *imagen = [CCSprite spriteWithFile:@"pinoanimado024.png"];
   //[self addChild:imagen];
   //[imagen runAction:accion];

   -----------------

   Posted 1 year ago #
4. 

   araker
   Moderator

   I see, you're loading a new spritesheet to animate the tiles with. That isn't possible since the tiles are already coupled to a spritesheet (your tileset). That gives the assertion. What you can do is to integrate the two png's into one. Then you can call

   -(void) addSpriteFramesWithFile:(NSString*)plist texture:(CCTexture2D*)texture

   This should work, the animation calls 'sprite setDisplayFrame' which only calls 'setTexture' if the texture is different than the current one.

   Posted 1 year ago #
5. 

   ImpresionesWeb
   Member

   mmm, thanks for the answer araker, but I don't really understand what you mean with "integrate the two pngs into one".

   Do you mean that I should add the animation pngs into the tileset and load them from there?
   If so how? I can't think how I should get the plist from zwotpex after merging both pngs....

   Posted 1 year ago #
6. 

   araker
   Moderator

   Both are made in zwoptex I presume, so indeed you need to add the animation pngs to the zwoptex tileset and let zwoptex create a new plist and png. Then edit the plist and remove information about the tiles, so you can use it for the animation.

   An alternative would be to create your own simple tile animation system (link).

   Posted 1 year ago #
7. 

   ImpresionesWeb
   Member

   Yup, I did as you said, I merged both animations and tiles in the same PNG, I created a plist where I can get my animation frames from but still the same error.

   I thought that with my code and just using the same PNG as the tileMap was enough but obviously something else has to change...

   Posted 1 year ago #
8. 

   araker
   Moderator

   To be sure, did you also use 'addSpriteFramesWithFile: texture:', where texture is 'cctmxlayer.textureAtlas.texture'? See this topic if it is unclear.

   Posted 1 year ago #
9. 

   ImpresionesWeb
   Member

   Got it!
   For people with this issue I fixed it as araker said:

   [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:
   @"mapa4.plist" texture:[tileMap layerNamed:@"Capa 0"].texture];

   Thanks!

   Posted 1 year ago #

RSS feed for this topic

Reply

You must log in to post.