Pixi Particles Emitter - How to make it move from point to point

[shampiona_na_naroda]

Hi everyone,

so i have a question about how i can make my particles emitter to move from point to point and is it possible to do this. 

I have an exact example of what i need. 

Can someone give me a simple code example ? Thanks.

[ivan.popelyshev]

https://github.com/pixijs/pixi-particles/blob/master/src/Emitter.js#L201

That's it , just change spawn pos.

There's no code example, so you have to write it yourself and then ask for help if it doesnt work.

[shampiona_na_naroda]

Yes thanks this way its working but how i'm suppose to call the update method without creating new emitters everytime

[ivan.popelyshev]

So whats the problem? Use the same emitter.

> To change this, use updateSpawnPos().

 

[riccioverde11]

Hello, I've been trying to follow what @ivan.popelyshev mentioned without any results.

This is how my code looks like.

const config =
{
  speed: {
    start: 1,
    end: 5000,
    minimumSpeedMultiplier: 0.1
  },
  lifetime: {
    min: 1,
    max: 1
  },
  frequency: 0.008,
  spawnChance: 1,
  particlesPerWave: 1,
  emitterLifetime: 1,
  maxParticles: 1,
  pos: {
    x: 0,
    y: 0
  },
}

    const emitter = new Emitter(container, [Texture.from('/particle.png')], config)
    let counter = 0
    this.app.ticker.add(delta => {
      counter += 100
      emitter.updateSpawnPos(10, counter)
      emitter.update(0.01)
    })

But the particle is not moving on the Y axis. What am i doing wrong?
Thank you.

[ivan.popelyshev]

Hello, and Welcome to the forums!

Well, its still there: https://github.com/pixijs/pixi-particles/blob/df3ca2c7aa8789f1cca266459b6746356990d261/src/Emitter.ts#L704

It should work. If it doesn't work, there's only one way to fix it - use devTools to debug the creation of the particles and why are they in the same point all the time.

This is not my plugin and I have not enough experience in it to just deduce the answer from your code.

 

[riccioverde11]

Thanks for the reply @ivan.popelyshev.

I think i got where the problem is. I was trying to understand how this particles effect works and basically i tried to emit only a particle at a time, if i increment the max particles, it will just work.