So I'm trying recoilJS for a js game that I am building and it pretty neat, but the need to update atoms from ponents only feels like a limitation.

To create a game loop, I put all the logic on empty ponent so I will be able to read and write states. Even if I will construct the login outside of the ponent, I will need especially move different stats around all the time. There is a way to update atoms outside of react ponent (not via hooks)?

So I'm trying recoilJS for a js game that I am building and it pretty neat, but the need to update atoms from ponents only feels like a limitation.

To create a game loop, I put all the logic on empty ponent so I will be able to read and write states. Even if I will construct the login outside of the ponent, I will need especially move different stats around all the time. There is a way to update atoms outside of react ponent (not via hooks)?

• javascript
• recoiljs

Share Improve this question Follow asked Jun 6, 2020 at 9:27 Smiled_OneSmiled_One 46511 gold badge44 silver badges1818 bronze badges

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2 Answers 2

Sorted by: Reset to default 7

I use RXJS to help to set RecoilJS value outside of the ponent.

At the start, I created 4 parts as

1. Main ponent
2. RecoilJS ponent
3. Atom file
4. set RecoilJS outside value of the ponent file

1).Main

import React from 'react';
import {
  RecoilRoot
} from 'recoil';

function App() {
  return (
    <RecoilRoot>
      <MainScreens />
      <RecoilJSComponent/>
    </RecoilRoot>
  );
}

2).RecoilJS ponent

import React from 'react';
import {
    useRecoilCallback
} from 'recoil';
import { Subject } from 'rxjs';

export const setRecoil = new Subject();

const getRecoil = new Subject();
const returnRecoil = new Subject();

export const promiseGetRecoil = (recoilObj) => {
    return new Promise(async (resolve, reject) => {
        getRecoil.next(recoilObj)
        returnRecoil.subscribe({
            next: (value) => {
                if (recoilObj === value.recoilObj) {
                    resolve(value.value)
                }
            }
        });
    })
 }

export default function RecoilJSComponent() {

    const setStore = useRecoilCallback(({ set }) => (n) => {
        set(n.recoilObj, () => (n.value));
    }, [])

    const getStore = useRecoilCallback(({ snapshot }) => async (recoilObj) => {
    
    const valueRecoilObj = await snapshot.getPromise(recoilObj);
    returnRecoil.next({ recoilObj: recoilObj, value: valueRecoilObj })

 }, [])

    setRecoil.subscribe({
        next: (value) => {
            setStore(value)
        }
    });

    getRecoil.subscribe({
        next: (recoilObj) => {
            getStore(recoilObj)
        }
    });

    return null;
}

3).Atom file

export const textState = atom({
  key: 'textState'
  default: ''
});

4).set RecoilJS outside the value of the ponent file

import API from './Api';
import { setRecoil } from './RecoilJSComponent'
import { textState } from './textState'

export const setValueReCoil = () => {

    API()
        .then(result => {

           setRecoil({ recoilObj: textState, value: result })

        })
        .catch(ex => {
        
        })
};

The main idol is in 2 and 4

In number 2, I create to use RXJS for setting value via the ponent and I export RXJS to set a value on RecoilJS outside of the ponent

I hope my idol can help you to resolve your problem

There isn't right now. Opened a suggestion for recoil team.