CAEmitterCell

-(void)awakeFromNib

{

 CAEmitterLayer* fireEmitter = (CAEmitterLayer*)self.layer; ;

    fireEmitter.emitterPosition = CGPointMake(self.bounds.size.width/2,self.bounds.size.height);

    fireEmitter.emitterMode =   kCAEmitterLayerOutline;

    fireEmitter.emitterShape = kCAEmitterLayerLine;

 

    fireEmitter.emitterSize = CGSizeMake(self.bounds.size.width/5,self.bounds.size.width/5);

 

    floatgas=.7;

    // Create the fire emitter cell

    CAEmitterCell *fire = [CAEmitterCell emitterCell];

    fire.emissionLongitude = M_PI;

    fire.emissionLatitude = -M_PI/2;

    fire.BirthRate = 0;//100*gas;

    fire.lifetime=gas;

    fire.lifetimeRange=gas*0.35;

    fire.Velocity = 80;

    fire.VelocityRange = 21;

    fire.EmissionRange = 1.1f;

    fire.yAcceleration = -200;

    fire.ScaleSpeed = 0.3f;

    fire.color=[[UIColorcolorWithRed:0.8green:0.4blue:0.2alpha:0.1]CGColor];

    fire.contents = (id)[[UIImageimageNamed:@"fire.png"]CGImage];

    [fire setName:@"fire"];

 

    CAEmitterCell *smoke = [CAEmitterCell emitterCell];

    smoke.BirthRate = 0;//11;

    smoke.emissionLongitude = -M_PI;

    smoke.emissionLatitude=-M_PI;

    smoke.lifetime = gas*4;

    smoke.Velocity = 40;

    smoke.VelocityRange = 20;

    smoke.emissionRange = M_PI/4;

    smoke.Spin = 1;

    smoke.SpinRange = 6;

    smoke.yAcceleration = -160;

    smoke.Scale = 0.1f;

    smoke.AlphaSpeed = -0.22f;

    smoke.ScaleSpeed = 0.7f;

    smoke.color=[[UIColorcolorWithRed:1green:1blue:1alpha:0.3*gas]CGColor];

 

    smoke.contents = (id)[[UIImageimageNamed:@"smoke.png"]CGImage];

    [smoke setName:@"smoke"];

 

    fireEmitter.emitterCells = [NSArrayarrayWithObjects:smoke,fire,nil];

}







You can download Hanukkah Menorah on the app store now for FREE. It supports both the iPad and iPhone. It also has some In-App-Purchases to change from the default menorah.