Pixi-particles Emitter position

[Evar1ste]

Hello,

First post there, little bit nervous

I am currently developing a little game using PIXI, but got stucked with pixi-particle related problem.
Link to game

As anyone can see my player 'spells' aka particles, are changing their respective position with their emitter (emitter and particles are moving).
What i want to achive is comet-like animation (like when mousemoving, using Pixi-particles-editor).

Let's proceed to the code.
 

import { ParticleContainer, loader } from 'pixi.js';
import { Emitter } from 'pixi-particles';
import { Spellbook as SPELLCONFIG } from './SpellTypes/Spellbook';



export default class Spell extends ParticleContainer {

    constructor(name, player) {

        super();
        super.setProperties({
            scale: true,
            position: true,
            rotation: true,
            uvs: true,
            alpha: true
        });

        this.name = name;
        this.playerName = player.name;

        this.spellEmitter = new Emitter(this, loader.resources.basicparticle.texture, SPELLCONFIG[name].emitter);
        this.spellEmitter.updateOwnerPos(player.x, player.y);

        this.direction = player.rotation;
        this.velocity = SPELLCONFIG[name].velocity;

    }

    update(delta) {

        const newX = this.spellEmitter.ownerPos.x + Math.sin(this.direction) * this.velocity;
        const newY = this.spellEmitter.ownerPos.y - Math.cos(this.direction) * this.velocity;
        this.spellEmitter.updateOwnerPos(newX, newY);
        this.spellEmitter.update(delta);


    }

}

Was trying to add resetTrackingPosition() before updateOwnerPosition() after analyzing pixi-particles example code. (and dozen of other solutions, but nothings worked as i intended)

Imho, theres something deeply misunderstood by me about pixi-particles system, so i have to ask here

Oh, whole game code can be found at my github project page. (Folder Spells is the one with particles code)

There are spells named "avada", "bariero", "stupefy" with their configuration (precisely - emitter settings) files.

PS. i am aware of particleContainers not being destroyed.

PS2. Sorry for my English, it's not my native. But tryin my best

[ivan.popelyshev]

emitters work with seconds in "delta" parameter. Pixi ticker gives you 1.0 as one frame, (1/60.0 of second). Where do you call that "update" thing?

[Evar1ste]

I have an array of 'casted spells' in SpellManager object.
Updating game, updates every single particleContainer aka spell.

import Spell from './Spell';
import { Spellbook as SPELLBOOK } from './SpellTypes/Spellbook';

export default class SpellsManager {

    constructor(player, gameContext) {

        this.gameContext = gameContext;
        this.player = player;
        this.spellNames = SPELLBOOK.names;
        this.currentPlayerSpell = this.spellNames[0];
        this.castedSpells = [];

    }

    nextSpell() {

        let nextIndex = this.spellNames.indexOf(this.currentPlayerSpell);
        nextIndex = ++nextIndex % (this.spellNames.length);
        this.currentPlayerSpell = this.spellNames[nextIndex];

    }


    castCurrent() {

        const spell = new Spell(this.currentPlayerSpell, this.player);
        this.castedSpells.push(spell);
        this.player.parent.addChild(spell);

    }

    update(delta) {

        this.castedSpells.forEach(spell => {

            spell.update(delta);

        });

    }

}

 

[Evar1ste]

Ok, i changed "spell.update(delta)" to "spell.update(delta/60.0)" and now it works perfectly well. (excluding one spell but i think it's emitter settings related)

Thank you for quick response