cocos2d for iPhone

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

1. 

   Diego R.
   Member

   I am using using CCSprites and CCParticleSystems in my code. Since I'm performing on the fly texture conversions, I am using [CCNode visit] to draw everything. I've tried to use the same approach with the particle system but, it didn't work. Which is the right way of using particles without adding them to the current layer and using visit instead?

   Thanks!

   Posted 1 year ago #
2. 

   riq
   Key Master

   [node visit] should work... from where are you calling [node visit'] ? . You should call it from the draw method, and not from a timer/callback/scheduled selector.

   Posted 1 year ago #
3. 

   Diego R.
   Member

   Thanks Riq,

   I am using it inside the draw method. The problem is that some ivars (e.g. totalParticles) on the particle class seem to only get initialized when you add the object to a layer. In the update function, the condition:

   while( particleIdx < particleCount )

   seems to be always false, so the particle system doesn't get updated.

   Posted 1 year ago #
4. 

   Diego R.
   Member

   Hi Riq,

   I didn't get any replies to my question. Tried to debug what goes on when calling 'visit': CCPointParticleSystem::draw gets called but it always exits on:

   if (particleIdx==0)
   return;

   the iVar particleIdx only gets incremented by 'update' which never gets called until you attach the node to a layer, which defeats the use of visit. I tried calling update from my code, but didn't help.

   Any ideas?

   Thanks!!

   Posted 1 year ago #
5. 

   riq
   Key Master

   @boca_jrs:

   The particle is a "living" object, so you need to "feed" it by calling update constantly.
   The easiest way to do it is by scheduling the update.

   Posted 1 year ago #

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