cocos2d for iPhone

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

1. 

   TheStalker
   Member

   Hi everyone,

   I have been messing around with some of the particle effects using an 32x32 star image. I have a few questions regarding them, i intend to use them to follow a bullet in a game design i have some with. My questions are as follows.

   - Is there any way that you can easily scale the particles? (I have tried using part.scaleY=20.0; and it seems to effect the movement weirdly?)
   - Is there any way to set how many particles there are. I mean some of the effects look good but it would be good in my bullet idea if say only a few particles followed behind the bullet.
   - Is there anyway to make them disappear quicker?

   Thanks for your time and help on this.

   Posted 3 months ago #
2. 

   Scottapotamas
   Member

   1. Not sure
   2. maxParticles property
   3. duration property

   So I assume they are handmade? Have you considered one of the tools to help, like Particle Designer, Particle Creator, Particles, CocoParticle etc?

   Posted 3 months ago #
3. 

   TheStalker
   Member

   Thanks for the quick reply. No i've only just started using particles, are any of the tools you mention free?

   Also do you know if you can specify to only use one color? e.g. the fireworks effect turns my image into all sorts of colours but i only want yellow.

   thanks again.

   Posted 3 months ago #
4. 

   TheStalker
   Member

   right ive figured some of it out now :)

   emitter.totalParticles = 50;
   emitter.duration = 1.0;
   emitter.startSize = 20.0;
   emitter.life = 0.8;

   Posted 3 months ago #
5. 

   qpawn
   Member

   http://www.cocos2d-iphone.org/wiki/doku.php/prog_guide:particles

   Try startColor and endColor.

   Posted 3 months ago #

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