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server.js
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const { server } = require('websocket');
try {
var WebSocket = require('ws');
var http = require("http");
var port = 20002;
var wss;
authenticatedUserSockets = [];
let playerdatabase = {};
let lastid = 0;
nametoplayer = {};
_server = {};
_serverNetworkPlayername = ""; // This is used to store the last player who sent a message, this is used in particular for the network registration
gameserver = {};
gameserver.path = __dirname;
//Broadcasts a chat message
_server.broadcastMessage = function(msg) {
Game.BroadcastMessage(msg);
}
//Sends packets to everyone, except its sender
_server.broadcastBufferFromSender = function(wsSender, data) {
authenticatedUserSockets.forEach(_ws => {
if(_ws!==wsSender) {
_ws.send(data);
//reply( _ws, packetname, data );
}
});
}
//Sends packets to everyone
_server.broadcastBufferPacket = function(data) {
authenticatedUserSockets.forEach(_ws => {
try {
_ws.send(data);
}catch(e) {
console.error(e);
}
//reply( _ws, packetname, data );
});
}
//Exporting a function to start the server
module.exports = function() {
//Shutting down the old websocket server
if(wss) {
console.log("Shutting down previous websocket server");
wss.shutDown();
}
//Creating a new websocket server
wss = new WebSocket.Server({ port: port },()=>{
console.log('server started')
});
//Handling new connections
wss.on('connection', function connection(ws) {
let userdata = {};
userdata.username = "N/A";
userdata.authenticated = false;
userdata.saveddata = {};
userdata.id = ++lastid*64;
userdata.ws = ws
let hasSentInitialHash = false;
let hasReceivedBlockData = false;
playerdatabase[userdata.id] = userdata;
ws.on('message', (data) => {
_serverNetworkPlayername = userdata.username;
switch(ws.binaryType) {
case "nodebuffer":
/*try {
let d = (JSON.parse(data));
switch(d.state) {
default:
console.log(`Unhandled state: ${d.state}`);
break;
//}
//}catch(e) {*/
try {
let x=0
let y=0;
let z=0;
let id=0;
let binary = [];
for(let index=0; index<data.length; index++) {
binary[index] = data[index];
}
let p = bufferReader(binary);
let msgid = p.readUShort();
//console.log("Handling message: " + msgid);
let writer = bufferWriter();
switch(msgid) {
case messageids.server.creds:
let key = p.readString();
console.log("Handling key: " + key);
let encodedData = encodeURIComponent("{\"action\":\"get\",\"key\":\""+key+"\"}");
console.log(encodedData);
http.get(`http://voxelsedge.com:20001/`+encodeURIComponent(`{"action":"get","key":"${key}"}`), (response) => {
console.log("one?");
let chunks_of_data = [];
response.on('data', (fragments) => {
chunks_of_data.push(fragments);
});
response.on('end', () => {
let response_body = Buffer.concat(chunks_of_data);
console.log("Authentication message response body: " + response_body);
// response body
let response_message = response_body.toString();
console.log("Authentication message response message: " + response_message);
try {
let jsonMsg = JSON.parse(response_message);
if(jsonMsg.success) {
//It has passed!
userdata.authenticated = true;
userdata.username = jsonMsg.username;
console.log("Authenticated user")
console.log("Username: " + jsonMsg.username);
nametoplayer[jsonMsg.username] = userdata;
authenticatedUserSockets.push(ws);
writer.writeInt(messageids.client.AcceptedSessionKey);
writer.writeString(userdata.username);
userdata.ws.send(writer.getData());
}else{
//It has failed
writer.writeInt(messageids.client.FailedSessionKey);
userdata.ws.send(writer.getData());
}
}catch(e) {
console.error(e);
}
});
response.on('error', (error) => {
console.log("AUTHENTICATION HTTP ERROR?: " + error);
});
});
break;
case messageids.server.RequestInitialTextureHash:
console.log("Retreiving initial hash message?");
if(hasSentInitialHash==false) {
console.log("Sending initial texture hash to " + userdata.username);
//assetstreamer.hash
//assetstreamer.fileCount
/*reply(
ws, "ReceiveInitialHash", assetstreamer.initial_message
);*/
let writer = bufferWriter();
writer.writeInt(messageids.client.ReceiveInitialHash);
writer.writeString(assetstreamer.hash);
writer.writeInt(assetstreamer.fileCount);
userdata.ws.send(writer.getData());
hasSentInitialHash = true;
}
break;
case messageids.server.RequestHashList:
console.log("Player RequestHashList");
writer.writeInt(messageids.client.ReceiveHashList);
//Writing the amount of hashes
writer.writeInt(assetstreamer.network_hashes.length);
//Writing the hashes
for(let i = 0; i < assetstreamer.network_hashes.length; i++) {
writer.writeString(assetstreamer.network_hashes[i].name);
writer.writeString(assetstreamer.network_hashes[i].hash);
}
userdata.ws.send(writer.getData());
break;
case messageids.server.RequestCacheFile:
let imgIndex = p.readInt();
let hashedImageFromIndex = assetstreamer.network_hashes[imgIndex];
let imgname = hashedImageFromIndex.name;
let img = assetstreamer.network_images[imgname];
console.log("Sending " + imgname + " to " + userdata.username);
//let writer = bufferWriter();
writer.writeInt(messageids.client.ReceiveCacheImage);
writer.writeInt (img.width);
writer.writeInt (img.height);
writer.writeString(img.hash);
writer.writeString(img.name);
//Writing the actual image
writer.writeString(img.data);
userdata.ws.send(writer.getData());
//reply(ws, "ReceiveCacheImage", {img:img});
break;
case messageids.server.RequestBlockData:
if(hasReceivedBlockData==false) {//Quick debounce
hasReceivedBlockData = true;
//console.log(blockdb.data);
//console.log(JSON.toString(blockdb.data));
writer.writeInt(messageids.client.ReceiveBlockData);
writer.writeInt(blockdb.data.blocks.length);
for(let i = 0; i < blockdb.data.blocks.length; i++) {
blockdb.data.blocks[i].writeToStream(writer);
}
userdata.ws.send(writer.getData());
//reply(ws, "ReceiveBlockData", blockdb.data);
}
break;
//CONVERT
case messageids.server.LogInWorld:
_server.broadcastMessage(userdata.username + " has logged in.");
let pos = {
x: 0,
y: 25,
z: 0
}
userdata.x = pos.x;
userdata.y = pos.y;
userdata.z = pos.z;
let loggedInWorldWriter = bufferWriter();
loggedInWorldWriter.writeInt(messageids.client.LogInWorld);
loggedInWorldWriter.writeInt(pos.x);
loggedInWorldWriter.writeInt(pos.y);
loggedInWorldWriter.writeInt(pos.z);
userdata.ws.send(loggedInWorldWriter.getData());
//Sending the player the
for(const[key, value] of Object.entries(playerdatabase)) {
if(value.id != userdata.id) {//Ignore ourself
let otherPlayerWriter = bufferWriter();
otherPlayerWriter.writeInt(messageids.client.OtherPlayerLogedIn);
otherPlayerWriter.writeString(value.username);
otherPlayerWriter.writeFloat(value.x);
otherPlayerWriter.writeFloat(value.y);
otherPlayerWriter.writeFloat(value.z);
otherPlayerWriter.writeInt(value.id);
userdata.ws.send(otherPlayerWriter.getData());
}
}
Events.fire("onPlayerPreLogin", userdata.username, ws);
Events.fire("onPlayerLogin", userdata.username, ws);
Events.fire("onPlayerPostLogin", userdata.username, ws);
//Here we are telling everyone else that we have logged in
//This is our data
let otherPlayerWriter = bufferWriter();
otherPlayerWriter.writeInt(messageids.client.OtherPlayerLogedIn);
otherPlayerWriter.writeString(userdata.username);
//Here we are setting the initial position
otherPlayerWriter.writeFloat(pos.x);
otherPlayerWriter.writeFloat(pos.y+100);
otherPlayerWriter.writeFloat(pos.z);
//Here we are telling the player their ID on the server
otherPlayerWriter.writeInt(userdata.id);
authenticatedUserSockets.forEach(_ws => {
if(_ws!=ws) {
_ws.send(otherPlayerWriter.getData());
}
});
break;
case messageids.server.RequestChunk:
try {
let ch = worldengine.GetChunk(p.readInt(), p.readInt(), p.readInt())//chunk.blocks
let netdata = ch.network;
writer.writeInt(messageids.client.RequestChunk);
writer.writeInt(netdata.x);
writer.writeInt(netdata.y);
writer.writeInt(netdata.z);
writer.writeInt(16*16*16);
for(let ____i = 0; ____i < 16*16*16; ____i++) {
let block = netdata.blocks[____i];
writer.writeInt(block);
}
}catch(e) {
console.error(e);
}
/*
network: {
[int] x
[int] y
[int] z
[int[]] blocks
}
*/
userdata.ws.send(writer.getData());
case messageids.server.UpdatePlayerPosition:
//Updating our local user position values
userdata.x = p.readFloat();
userdata.y = p.readFloat();
userdata.z = p.readFloat();
let pdata = playerdata[userdata.username];
if(pdata) {
if(pdata.readyToWrite==true) {
playerdata[userdata.username].worldpos.x = userdata.x;
playerdata[userdata.username].worldpos.y = userdata.y;
playerdata[userdata.username].worldpos.z = userdata.z;
}
}
//Writing Broadcasting our position values to everyone else
let updatePosWriter = bufferWriter();
updatePosWriter.writeInt(messageids.client.OtherPlayerMove);
updatePosWriter.writeInt(userdata.id);
updatePosWriter.writeFloat(userdata.x);
updatePosWriter.writeFloat(userdata.y);
updatePosWriter.writeFloat(userdata.z);
//ws.send(updatePosWriter.getData());
_server.broadcastBufferFromSender(ws, updatePosWriter.getData());
break;
case messageids.server.Chat:
if(userdata.authenticated) {
let txtmsg = p.readString();
console.log()
Events.fire("onPlayerChat", userdata.username, txtmsg);
if(Events.storage["onPlayerChat"].data["sendMessage"]) {
console.log("Broadcasting to player");
_server.broadcastMessage(Events.storage["onPlayerChat"].data["message"]);
}
}
break;
case messageids.server.PlayerPlaceBlock:
//_server.broadcastPacket("PlayerPlaceBlock", {x:d.x, y:d.y, z:d.z, id:d.id});
x = p.readFloat();
y = p.readFloat();
z = p.readFloat();
id = p.readInt();
worldengine.worlds.overworld.SetBlock(Math.floor(x), Math.floor(z), Math.floor(y),id);
worldengine.worlds.overworld.UpdateChunk(Math.floor(x/16),Math.floor(z/16),Math.floor(y/16))
worldengine.worlds.overworld.SaveChunk(Math.floor(x/16),Math.floor(z/16),Math.floor(y/16))
let placeBlockWriter = bufferWriter();
placeBlockWriter.writeInt(messageids.client.PlayerPlaceBlock);
placeBlockWriter.writeFloat(x);
placeBlockWriter.writeFloat(y);
placeBlockWriter.writeFloat(z);
placeBlockWriter.writeInt(id);
_server.broadcastBufferPacket(placeBlockWriter.getData());
//_server.broadcastPacket("PlayerPlaceBlock", {x:d.x, y:d.y, z:d.z, id:d.id});
/*_server.broadcastPacket("RequestChunk", {
chunk:worldengine.GetChunk(Math.floor(d.x/16),Math.floor(d.z/16),Math.floor(d.y/16)).network
});*/
break;
case messageids.server.PlayerBreakBlock:
x = p.readFloat();
y = p.readFloat();
z = p.readFloat();
worldengine.worlds.overworld.SetBlock(Math.floor(x), Math.floor(z), Math.floor(y),-1);
worldengine.worlds.overworld.UpdateChunk(Math.floor(x/16),Math.floor(z/16),Math.floor(y/16));
worldengine.worlds.overworld.SaveChunk(Math.floor(x/16),Math.floor(z/16),Math.floor(y/16));
let breakBlockWriter = bufferWriter();
breakBlockWriter.writeInt(messageids.client.PlayerBreakBlock);
breakBlockWriter.writeFloat(x);
breakBlockWriter.writeFloat(y);
breakBlockWriter.writeFloat(z);
_server.broadcastBufferPacket(breakBlockWriter.getData());
break;
case messageids.server.RequestScriptData:
_server.broadcastBufferPacket(ClientCache.writer.getData());
break;
case messageids.server.ScriptData:
let messageID = p.readInt();
let messageSize = p.readInt();
let messageData = p.readBytesRaw(messageSize);
Net.Fire(messageID, messageData, ws);
break;
default:
console.log("UNHANDLED MESSAGE ID: " + msgid);
}
}catch(e2) {
console.error(e2);
}
//}
break;
case "arraybuffer":
console.log("This is binary");
break;
default:
console.log("Unhandled binary type: " + ws.binaryType);
break;
}
});
ws.onerror = () => {
console.log(userdata.username + " has logged out");
Events.fire("onPlayerLogout", userdata.username, ws);
_server.broadcastMessage(userdata.username + " has logged out");
let index = authenticatedUserSockets.indexOf(ws);
authenticatedUserSockets.splice(index,1);
let otherPlayerWriter = bufferWriter();
otherPlayerWriter.writeInt(messageids.client.OtherPlayerLogout);
otherPlayerWriter.writeString(userdata.id);
_server.broadcastBufferPacket(otherPlayerWriter.getData());
playerdatabase[userdata.id] = null;
delete nametoplayer[userdata.username];
delete playerdatabase[userdata.id];
}
ws.onclose = () => {
console.log(userdata.username + " has logged out");
Events.fire("onPlayerPreLogout", userdata.username, ws);
Events.fire("onPlayerLogout", userdata.username, ws);
Events.fire("onPlayerPostLogout", userdata.username, ws);
_server.broadcastMessage(userdata.username + " has logged out");
let index = authenticatedUserSockets.indexOf(ws);
authenticatedUserSockets.splice(index,1);
let otherPlayerWriter = bufferWriter();
otherPlayerWriter.writeInt(messageids.client.OtherPlayerLogout);
otherPlayerWriter.writeString(userdata.id);
_server.broadcastBufferPacket(otherPlayerWriter.getData());
playerdatabase[userdata.id] = null;
delete nametoplayer[userdata.username];
delete playerdatabase[userdata.id];
}
//Sending data to the client that joins
setTimeout(function() {
let writer = bufferWriter();
//Sending the initial message, to let the client know we are ready to start initializing.
writer.writeInt(messageids.client.Init);
ws.send(writer.getData());
}, 300);
});
//Checking for when we start listening
wss.on('listening',()=>{
console.log(`listening on ${port}`)
})
}
Events.register("onServerStart", function() {
console.log("Registering the server update loop");
setInterval(function() {
//console.log("Server update loop")
Events.fire("onServerUpdate");
}, 1/20);
})
}catch(e) {
console.error(e);
}