how to restart a particleSystem « cocos2d for iPhone

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how to restart a particleSystem

(5 posts) (5 voices)

Started 2 years ago by shinren
Latest reply from Vlad Stan

Tags:

shinren
Member

I use the method [stopSystem]
how to restart the particleSystem ??

Posted 2 years ago #
natanavra
Member

there's a restart method aswell if I'm not mistaken.

~ Natanavra.

Posted 2 years ago #
AkumaStreak
Member

Beacause I keep my particle systems around, and because I want to start and stop the emitter routinely without destroying any existing particles that may have already been emitted, I added the following two methods to my particle classes.

-(void)enable
{
active = YES;
elapsed = 0.0f;
}

-(void)disable
{
active = NO;
}

We should push for getting something like this in the mainline so that we don't have to stay delta'd away from it.

- Jason

Posted 2 years ago #
bradparks
Member
definitely submit it as an enhancement if it works and is simple... but if you want to just add it to all the existing particlesystems without needing to mod the Cocos2d source, you can add it as an objective c "category", which basically means just define your new methods, and and add them to the class like so:
```
MyNewFeatures.h:

@interface ParticleSystem (myNewFeatures)
  -(void)enable;
  -(void)disable;
  @end

MyNewFeatures.m:

  @implementation ParticleSystem (myNewFeatures)
  -(void)enable
  {
    active = YES;
    elapsed = 0.0f;
  }

  -(void)disable
  {
    active = NO;
  }
  @end
```
Then include "MyNewFeatures.h" in any place you want to use your new methods, and they'll work... The only thing categories can't do is add new member variables, but since you wanted to work with existing member variables, you're good!
Posted 2 years ago #
Vlad Stan
Member
setting the active yes/no not working.
Property is readOnly
```
/** Is the emitter active */
@property (nonatomic,readonly) BOOL active;
```
Posted 1 year ago #

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