ueblueprint/js/entity/SimpleSerializationRotatorEntity.js

import Parsimmon from "parsimmon"
import RotatorEntity from "./RotatorEntity.js"
import Grammar from "../serialization/Grammar.js"

export default class SimpleSerializationRotatorEntity extends RotatorEntity {

    static grammar = this.createGrammar()

    static createGrammar() {
        return Parsimmon.alt(
            Parsimmon.seq(
                Grammar.number,
                Grammar.commaSeparation,
                Grammar.number,
                Grammar.commaSeparation,
                Grammar.number,
            ).map(([p, _1, y, _3, r]) =>
                new this({
                    R: r,
                    P: p,
                    Y: y,
                })
            ),
            RotatorEntity.createGrammar()
        )
    }
}