javascript - variable is not getting defined even though the code works somwhere else -


so building game in 3 js , trying make multiplayer throught socket.io loading of characters array called players on server side

and pass each client when connect 

socket.on('addplayer', function(username) {     players.push(username)     console.log(username + " joined")     console.log("online users " + players)     socket.broadcast.emit('syncplayers', players)     socket.emit('syncplayers', players) })

and on client syncplayers looks 

socket.on('syncplayers', function(players) {     players.foreach(function(value) {         if (value == username) {             console.log("not adding " + value + " thats ")             loadplayerdata(username)         } else {             console.log("player online " + value);             newplayer = value;             loadplayerdata(newplayer)             addplayer(newplayer)         }     }); })

then calls wich sends server data

function loadplayerdata(playername) {     console.log(playername)     console.log("phase1")     socket.emit('loadplayerdata', playername) }

then called , retrieved player name , data of players location problem lies

socket.on('loadplayerdata', function(data, username) {     tomove = threeobjects[username + "char"]     if (data == "null" || "") {         console.log(username + " new")     } else {         console.log(username + " exists")         console.log(tomove)         tomove.position.set(world.spawnpointx, world.spawnpointy, world.spawnpointz)     }

i keep getting uncaught typeerror: cannot read property 'position' of undefined

even though can use this

function addplayer(playername) {      var charobjectname = playername + "char"     var threeobject = models.tent1.mesh.clone();     scene.add(threeobject)        //threeobject.position.set(world.spawnpointx, world.spawnpointy, world.spawnpointz)     // set reference     threeobjects[charobjectname] = threeobject; }

btw have object 

   var threeobjects = {};

can please explain why wont work , how fix it

you can read this answer understand difference between dot , brackets notation.

you getting error because, tomove seems undefined , dot notation throw error if new user joins , if object empty.

check if helps. assign object key username , position value array this, {"usernamechar": {"position": [x,y,z]}}

socket.on('loadplayerdata', function(data, username) {     if (data == "null" || "") {         console.log(username + " new")     } else {         console.log(username + " exists")         threeobjects[username + "char"]["position"] = [world.spawnpointx, world.spawnpointy, world.spawnpointz]      } }

Comments

Post a Comment

Popular posts from this blog

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m...
Read more

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

sql server - Why does Linq-to-SQL add unnecessary COUNT()? -

here tables: create table customer ( cid int primary key, name varchar(32) ) create table ord ( oid int primary key, cid int foreign key references customer, address varchar(20) ) here's linq-to-sql statement: var aaa = c in db.customer select new { c, o = c.ord.tolist() }; and here's inexplicable query generated linq-to-sql: select [t0].[cid] [cid], [t0].[name] [name], [t1].[oid] [oid], [t1].[cid] [cid2], [t1].[address] [address], (select count(*) [dbo].[ord] [t2] [t2].[cid] = [t0].[cid]) [value] [dbo].[customer] [t0] left outer join [dbo].[ord] [t1] on [t1].[cid] = [t0].[cid] order [t0].[cid], [t1].[oid] i want understand how rid of count(*) part. it's entirely uncalled for! linq needs count(*) in order determine number of entries returned o = c.ord.tolist() .
Read more