Javascript 在模块内部实例化类时超出了最大调用堆栈

Javascript 在模块内部实例化类时超出了最大调用堆栈,javascript,node.js,npm,Javascript,Node.js,Npm,第7行我的console.log打印得很好 host.js "use strict"; var engine = require('./engine.js'); var base = require('./base.js'); var player = new base.Avatar(); console.log(player.x); class PillarGame extends engine.ServerGame { connectPlayer(socket) {

第7行我的console.log打印得很好

host.js

"use strict";

var engine = require('./engine.js');
var base = require('./base.js');

var player = new base.Avatar();
console.log(player.x);

class PillarGame extends engine.ServerGame {
    connectPlayer(socket) {
        var player = new base.Avatar();
        this.add('players', player);
        console.log("added player");
        //announce
    }   
}

module.exports = {'HostedGame' : PillarGame};
但在创建该对象并发出以下信息后,我的服务器发生了崩溃:

        if (obj.hasOwnProperty(key) && _hasBinary(obj[key])) {
                ^

RangeError: Maximum call stack size exceeded
    at Object.hasOwnProperty (native)
为什么会崩溃

base.js没有任何要求

堆栈跟踪:

listening
connected
added player
/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:0
(function (exports, require, module, __filename, __dirname) { /*

RangeError: Maximum call stack size exceeded
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:24:22)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:37:15)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:47:40)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:47:40)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:47:40)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:37:15)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:47:40)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:47:40)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:47:40)
    at _hasBinary (/Users/quantum/code/online/node_modules/socket.io/node_modules/has-binary-data/index.js:37:15)
server.js,在上崩溃
socket.emit(“game.things”,game.things)

var express=require('express');
var path=require('path');
var-app=express();
var server=require('http')。createServer(应用程序);
var io=require('socket.io')(服务器);
变量逻辑=要求('./逻辑');
var hostedGame=require('./host');
var game=newhostedgame.hostedGame({'sockets':io.sockets});
app.use(express.static(path.join(uu dirname,'public'));
监听(3000,函数(){
console.log('listing');
});
io.on('连接',函数(套接字){
console.log('connected');//extrac
游戏。连接播放器(插座);
//console.log(“game.things['players']”+game.things['players']);;
socket.emit(“game.things”,game.things);
//socket.on('input',函数(数据){
//游戏。输入(套接字、数据);
// });
});
var loopAsync=函数(){
设置超时(循环,10);
//setImmediate(循环);
}
var now=Date.now();
var last=现在;
var dt=0.00;
var率=10;
函数循环(){
now=Date.now();
var delta=现在-最后一次;
最后=现在;
dt=dt+delta;
如果(dt<速率){
loopAsync();
返回;
}否则{
dt-=速率;
//如果dt仍然>速率,则在为真时重复以下步骤
var updates=game.loop();
//放出东西
io.sockets.emit('player-positions',logic.player);
//输入输出到特定的播放器
loopAsync();
}
}
loopAsync();
base.js

"use strict";

class Component {
    defaultMaxCharge() {
        return [0];
    }

    constructor(options) {
        options = options || {};
        this.charge = [0];
        if (options['maxCharge']) {
            this.maxCharge = options['maxCharge'];
        } else {
            this.maxCharge = this.defaultMaxCharge();
        }

    }

    loop() {

    }

    getValue(name, hash) {
        return hash;
    }   
}

class Looper extends Component {
    registrationNames() {
        return ['loop'];
    }
}

class Mover extends Looper {
    loop() {
        var velocity = this.thing.getValue('velocity');
        var speed = this.thing.getValue('speed')['speed'];

        var total = Math.abs(velocity.vx) + Math.abs(velocity.vy);
        if (total <= 0) {
            return;
        }

        var xx = velocity.mx / total * this.speedMod();
        var yy = velocity.my / total * this.speedMod();

        this.thing.x = this.thing.x + xx * speed;
        this.thing.y = this.thing.y + yy * speed;
        this.thing.x += velocity.vx;
        this.thing.y += velocity.vy; //announce
    }
}

//input components

class XWalker extends Component {
    constructor(options) {
        super(options);
        this.vx = 0;
    }

    registrationNames() {
        return ['input', 'velocity'];
    }

    getValue(name, hash) {
        if (name == 'velocity') {
            hash.vx = this.vx; //times speed
        }

        return hash;
    }

    processEvent(name, eventer, hash) {
        if (name == 'input') {
            if (hash.left) {
                this.vx = -1;
            } else if (hash.right) {
                this.vx = 1;
            } else {
                this.vx = 0;
            }
        }
    }
}

class YWalker extends Component {
    constructor(options) {
        super(options);
        this.vx = 0;
    }

    registrationNames() {
        return ['input', 'velocity'];
    }

    getValue(name, hash) {
        if (name == 'velocity') {
            hash.vy = this.vy; //times speed
        }

        return hash;
    }

    processEvent(name, eventer, hash) {
        if (name == 'input') {
            if (hash.up) {
                this.vy = -1;
            } else if (hash.down) {
                this.vy = 1;
            } else {
                this.vy = 0;
            }
        }
    }
}

class Thing {
    spawnComponents(options) {
        return [];
    }

    installComponents(options) {
        this.componentRegistrations = {};
        this.components = [];

        var comps = this.spawnComponents(options);
        for (var i = 0; i < comps.length; i++) {
            var component = comps[i];
            component.thing = this;
            this.registerComponent(component);

            this.components.push(component);
        }
    }

    registerComponent(component) {
        for (var i = 0; i < component.registrationNames().length; i++) {
            var eventName = component.registrationNames()[i];
            if (!this.componentRegistrations[eventName]) {
                this.componentRegistrations[eventName] = [];
            }

            this.componentRegistrations[eventName].push(component);
        }
    }

    getValue(name) {
        var registered = this.componentRegistrations[name];
        if (registered) {
            var valueHash = {};
            for (var i = 0; i < registered.length; i++) {
                var component = registered[i];
                valueHash = component.getValue(name, valueHash);
                if (valueHash.stop) {
                    return valueHash;
                }
            }

            return valueHash;
        }
    }

    processEvent(name, eventer, hash) {
        var registered = this.componentRegistrations[name];
        if (registered) {
            for (var i = 0; i < registered.length; i++) {
                var component = registered[i];
                component.processEvent(name, eventer, hash);
            }
        }
    }

    constructor(options) {
        if (options && options['position']) {
            this.x = options['position'].x * this.canvas.width;
            this.y = options['position'].y * this.canvas.height;
        } else {
            this.x = 2.0;
            this.y = 2.0;   
        }

        this.installComponents(options);
        this.active = true;
    }

    loop() {
        for (var i = 0; i < this.components.length; i++) {
            var component = this.components[i];
            component.loop();
        }
    }   

    afterLoop() {

    }

    position() {
        return {'x' : this.x, 'y' : this.y};
    }
}

class Avatar extends Thing {
    spawnComponents(options) {
        return [new Mover(), new XWalker(), new YWalker()];
    }
}

module.exports = {'Component' : Component, 'Thing' : Thing,
'Mover' : Mover, 'Looper' : Looper, 'XWalker' : XWalker, 'YWalker' : YWalker,
'Avatar' : Avatar};
“严格使用”;
类组件{
defaultMaxCharge(){
返回[0];
}
构造函数(选项){
选项=选项| |{};
这个.电荷=[0];
如果(选项['maxCharge']){
this.maxCharge=options['maxCharge'];
}否则{
this.maxCharge=this.defaultMaxCharge();
}
}
循环(){
}
getValue(名称、哈希){
返回散列;
}   
}
类循环器扩展组件{
注册名称(){
返回['loop'];
}
}
类移动器扩展了Looper{
循环(){
var-velocity=this.thing.getValue('velocity');
var speed=this.thing.getValue('speed')['speed'];
var total=Math.abs(velocity.vx)+Math.abs(velocity.vy);
如果(总计)

最有可能的是
游戏。
是一个具有循环引用的复杂对象,socket.io在发出之前试图将其转换为JSON,但失败。

也许你应该发布完整的回溯输出?你也可以发布
base.Avatar
的实现。啊,搞定了。注销对象并看到“循环”在参考资料中。
"use strict";

class Component {
    defaultMaxCharge() {
        return [0];
    }

    constructor(options) {
        options = options || {};
        this.charge = [0];
        if (options['maxCharge']) {
            this.maxCharge = options['maxCharge'];
        } else {
            this.maxCharge = this.defaultMaxCharge();
        }

    }

    loop() {

    }

    getValue(name, hash) {
        return hash;
    }   
}

class Looper extends Component {
    registrationNames() {
        return ['loop'];
    }
}

class Mover extends Looper {
    loop() {
        var velocity = this.thing.getValue('velocity');
        var speed = this.thing.getValue('speed')['speed'];

        var total = Math.abs(velocity.vx) + Math.abs(velocity.vy);
        if (total <= 0) {
            return;
        }

        var xx = velocity.mx / total * this.speedMod();
        var yy = velocity.my / total * this.speedMod();

        this.thing.x = this.thing.x + xx * speed;
        this.thing.y = this.thing.y + yy * speed;
        this.thing.x += velocity.vx;
        this.thing.y += velocity.vy; //announce
    }
}

//input components

class XWalker extends Component {
    constructor(options) {
        super(options);
        this.vx = 0;
    }

    registrationNames() {
        return ['input', 'velocity'];
    }

    getValue(name, hash) {
        if (name == 'velocity') {
            hash.vx = this.vx; //times speed
        }

        return hash;
    }

    processEvent(name, eventer, hash) {
        if (name == 'input') {
            if (hash.left) {
                this.vx = -1;
            } else if (hash.right) {
                this.vx = 1;
            } else {
                this.vx = 0;
            }
        }
    }
}

class YWalker extends Component {
    constructor(options) {
        super(options);
        this.vx = 0;
    }

    registrationNames() {
        return ['input', 'velocity'];
    }

    getValue(name, hash) {
        if (name == 'velocity') {
            hash.vy = this.vy; //times speed
        }

        return hash;
    }

    processEvent(name, eventer, hash) {
        if (name == 'input') {
            if (hash.up) {
                this.vy = -1;
            } else if (hash.down) {
                this.vy = 1;
            } else {
                this.vy = 0;
            }
        }
    }
}

class Thing {
    spawnComponents(options) {
        return [];
    }

    installComponents(options) {
        this.componentRegistrations = {};
        this.components = [];

        var comps = this.spawnComponents(options);
        for (var i = 0; i < comps.length; i++) {
            var component = comps[i];
            component.thing = this;
            this.registerComponent(component);

            this.components.push(component);
        }
    }

    registerComponent(component) {
        for (var i = 0; i < component.registrationNames().length; i++) {
            var eventName = component.registrationNames()[i];
            if (!this.componentRegistrations[eventName]) {
                this.componentRegistrations[eventName] = [];
            }

            this.componentRegistrations[eventName].push(component);
        }
    }

    getValue(name) {
        var registered = this.componentRegistrations[name];
        if (registered) {
            var valueHash = {};
            for (var i = 0; i < registered.length; i++) {
                var component = registered[i];
                valueHash = component.getValue(name, valueHash);
                if (valueHash.stop) {
                    return valueHash;
                }
            }

            return valueHash;
        }
    }

    processEvent(name, eventer, hash) {
        var registered = this.componentRegistrations[name];
        if (registered) {
            for (var i = 0; i < registered.length; i++) {
                var component = registered[i];
                component.processEvent(name, eventer, hash);
            }
        }
    }

    constructor(options) {
        if (options && options['position']) {
            this.x = options['position'].x * this.canvas.width;
            this.y = options['position'].y * this.canvas.height;
        } else {
            this.x = 2.0;
            this.y = 2.0;   
        }

        this.installComponents(options);
        this.active = true;
    }

    loop() {
        for (var i = 0; i < this.components.length; i++) {
            var component = this.components[i];
            component.loop();
        }
    }   

    afterLoop() {

    }

    position() {
        return {'x' : this.x, 'y' : this.y};
    }
}

class Avatar extends Thing {
    spawnComponents(options) {
        return [new Mover(), new XWalker(), new YWalker()];
    }
}

module.exports = {'Component' : Component, 'Thing' : Thing,
'Mover' : Mover, 'Looper' : Looper, 'XWalker' : XWalker, 'YWalker' : YWalker,
'Avatar' : Avatar};
server.js, crashes on socket.emit("game.things", game.things);