Trying to do an exploding ring.

Hi,
I've just bought ParticleCandy and I am trying to do an exploding ring. I did it by taking the FairyDust sample an put, in the particle property, the weight to 0, the emissionShape to 3 and the emissionRadius to 30.
The strange thing is that the weight change made the particle going up.
Anyway what I really want is to be able to have an explosion ring. Is there a good way to do it.

Thanks in advance.

Bruno from BlueGlutton.com

Ok, I did it :
Do a circular png file. Then use the ring type emission shape and it works.

BR
Bruno from http://blueglutton.com

Hold on. I am confused. Why would you do a circular png?

Hi,
The way I did is by having a png file with a circle in it. Then I use the disk emission shape not the ring one with as ScaleInSpeed different from 0.
Maybe there's a different way but what I did seems to work.
Have you a better way to do it ? Because if so, I am interested.

Bruno from http://blueglutton.com

Thanks.

Check this out. Works really well and gives you a sort of a Firework effect

--Ring Explosion Particle
-- DEFINE PARTICLE TYPE PROPERTIES
local ring                              = {}
ring.imagePath                  = "picture.png"
ring.imageWidth                 = 22    -- PARTICLE IMAGE WIDTH  (newImageRect)
ring.imageHeight                        = 14    -- PARTICLE IMAGE HEIGHT (newImageRect)
ring.velocityStart              = 500   -- PIXELS PER SECOND
ring.velocityVariation  = 100
ring.velocityChange             = -5
ring.rotationStart              = 0
ring.rotationVariation  = 200
ring.directionVariation = 360
ring.alphaStart                 = 1             -- PARTICLE START ALPHA
ring.fadeInSpeed                = 0.5   -- PER SECOND
ring.fadeOutSpeed               = -2.0  -- PER SECOND
ring.fadeOutDelay               = 500   -- WHEN TO START FADE-OUT
ring.scaleStart                 = .5    -- PARTICLE START SIZE
ring.scaleVariation             = .5
ring.scaleInSpeed               = 0
ring.weight                             = 0-- PARTICLE WEIGHT (>0 FALLS DOWN, <0 WILL RISE UPWARDS)
ring.emissionShape              = 0             -- 0 = POINT, 1 = LINE, 2 = RING, 3 = DISC
ring.emissionRadius             = 5     -- SIZE / RADIUS OF EMISSION SHAPE
ring.killOutsideScreen  = true  -- PARENT LAYER MUST NOT BE NESTED OR ROTATED! 
ring.lifeTime                           = 2000  -- MAX. LIFETIME OF A PARTICLE
ring.useEmitterRotation = false --INHERIT EMITTER'S CURRENT ROTATION
ring.blendMode                  = "normal" -- SETS BLEND MODE ("add" OR "normal", DEFAULT IS "normal")
 
 
Particles.CreateParticleType ("Ring", ring)     
 
Particles.CreateEmitter("E3", screenW/2, 160, 0, false, true)
                                
Particles.AttachParticleType("E3", "Ring" , 500, 99999,0)
 
 
--Blow Effect
local function blow()
        Particles.StartEmitter("E3")
        local function stop ()
                Particles.StopEmitter("E3")
        end
        timer.performWithDelay(100,stop,1)
end
timer.performWithDelay(1000,blow,0)

I tried what you provided. Thank you but it doesn't do what I have in mind. Have look at this video ( from Star Wars ) : http://www.youtube.com/watch?v=djZFHTa6TfA&feature=related
I really want to have the kind of circular blast we have not the central explosion.

BR
Bruno from http://blueglutton.com

So you want the circular Blast that keeps going instead of stopping like the one I provided?
Just change the velocity change parameter to 0 or something positive. Play with the velocity variables.

views:1495 update：2011/10/14 9:11:21


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