@fuwu-yuan/bgew/dist/lib/classes/Dispatcher.js

Baguette Game Engine Web is a french 2D Web game engine

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Dispatcher = void 0;
const DispatcherEvent_1 = require("./DispatcherEvent");
class Dispatcher {
    constructor() {
        this.events = {};
    }
    dispatch(eventName, ...args) {
        const event = this.events[eventName];
        if (event) {
            event.fire(...args);
        }
        const all = this.events["all"];
        if (all) {
            all.fire(...args);
        }
    }
    on(eventName, callback, options) {
        let event = this.events[eventName];
        if (!event) {
            event = new DispatcherEvent_1.DispatcherEvent(eventName);
            this.events[eventName] = event;
        }
        event.registerCallback(callback, options);
    }
    off(eventName, callback) {
        const event = this.events[eventName];
        if (event) {
            event.unregisterCallback(callback);
            if (event.callbacks.length === 0) {
                delete this.events[eventName];
            }
        }
    }
}
exports.Dispatcher = Dispatcher;