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Animated particle position issues


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I'm having issues trying to get my head around animated particles.

I have a texture atlast representing an explosion animation. I can use this standalone with no problems, however when I try to use it with a particle emitter I'm having difficulty with positioning. It also seems that the animation is half sized and I can't tell why.

Here's my code:

    //  Player explosion
    this.playerExplode = function(x, y) {
        this.emitter     = this.add.emitter(x, y, 4);
        this.emitter.forEach(function(singleParticle) {
            singleParticle.animations.add('explosion', Phaser.Animation.generateFrameNames("explosion_",  1, 11, ".png", 2));
            singleParticle.animations.play('explosion', 15, false, true);
        this.emitter.start(true, 2000, null, 10);

The function is called on a player collision with an obstacle. I pass the X,Y co-ordinates to the function and create the emitter as you can see.

If I dump out the emitter object to the console, I can see the X,Y co-ordinates are correct.

I've picked up the method for adding animations from some tutorial or other - I can't remember where but I've been all over the web looking for a simple animated particle example and can't seem to find one. This is where I've landed - if there are any better or more standard ways to add an animation to a particle, please let me know!

If I dump out the position of each 'singleParticle', they all come back as 0.

Oddly enough, I can see the animation (zoomed out by 50%, it would seem!) in the top right corner of the screen. I'm not sure why this is.

Can anyone help out here?



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Seems I've gotten to the bottom of this, but I'm a little surprised.

For ease of debugging, I've been using toFixed() on my positions to output integers. Seems that doing so in this context causes issues... If I pass the X,Y co-ordinates as is, it all seems to work as I'd expect.


Ho hum.

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