react-simple-game-engine/lib/classes/watcher.js

[WIP] not able to use in currently. <!-- Document cumming soon... -->

var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
    if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
        if (ar || !(i in from)) {
            if (!ar) ar = Array.prototype.slice.call(from, 0, i);
            ar[i] = from[i];
        }
    }
    return to.concat(ar || Array.prototype.slice.call(from));
};
import { Fragment as _Fragment, jsx as _jsx } from "react/jsx-runtime";
import { useContext, useEffect, useState } from "react";
import { UISceneContext } from "../react-context";
export function Watcher(_a) {
    var _names = _a.names, children = _a.children, initialValues = _a.initialValues;
    var scene = useContext(UISceneContext);
    var names = Array.isArray(_names) ? _names : [_names];
    var _b = useState(initialValues), values = _b[0], setValues = _b[1];
    useEffect(function () {
        var unSubs = names.map(function (name) {
            return scene.onEntityPropsChange(name, function (value) {
                setValues(function (prev) {
                    var _a;
                    return (__assign(__assign({}, prev), (_a = {}, _a[name] = value, _a)));
                });
            });
        });
        return function () {
            for (var _i = 0, unSubs_1 = unSubs; _i < unSubs_1.length; _i++) {
                var unSub = unSubs_1[_i];
                unSub();
            }
        };
    }, __spreadArray(__spreadArray([], names, true), [scene], false));
    return _jsx(_Fragment, { children: children(values) });
}