From 93dcc127bf538470534e46172d67e2dee9c9703e Mon Sep 17 00:00:00 2001 From: holly Date: Tue, 10 Aug 2021 23:21:44 +0100 Subject: [PATCH] server tick lmao --- bufferStuff.js | 5 +- index.js | 250 ++++++++++++++++++++++++++++++++++++++++++++++--- 2 files changed, 240 insertions(+), 15 deletions(-) diff --git a/bufferStuff.js b/bufferStuff.js index b045be8..2f45c66 100644 --- a/bufferStuff.js +++ b/bufferStuff.js @@ -1,7 +1,10 @@ module.exports.Writer = class { constructor() { this.buffer = Buffer.alloc(0); - this.offset = 0; + } + + reset() { + this.buffer = Buffer.alloc(0); } writeBuffer(buff = Buffer.alloc(0)) { diff --git a/index.js b/index.js index c5c4ebd..383a70d 100644 --- a/index.js +++ b/index.js @@ -10,7 +10,9 @@ const myman = require("./bufferStuff.js"); const users = []; function addUser(socket, username) { - users.push([users.length + 1, socket, username]); + const thething = [4 * users.length, socket, username, false, [-2890438704, -2345654261, -8972334789], [0, 0], null, false]; + users.push(thething); + return thething; } const server = new net.Server(); @@ -21,11 +23,75 @@ server.listen(port, function() { console.log(`Server listening for connection requests on socket localhost:${port}`); }); +setInterval(() => { + // Server tick interval + for (let tickUser of users) { + if (!tickUser[7]) continue; + + if (tickUser[6] == null) { + + const writer = new myman.Writer(); + + writer.writeByte(0x22); + writer.writeInt(tickUser[0]); + writer.writeInt(Math.floor(tickUser[4][0] * 32)); + writer.writeInt(Math.floor(tickUser[4][1] * 32)); + writer.writeInt(Math.floor(tickUser[4][2] * 32)); + writer.writeByte(Math.floor((tickUser[5][0] * 256) / 360)); + writer.writeByte(Math.floor((tickUser[5][1] * 256) / 360)); + + for (let user of users) { + if (user[0] == tickUser[0]) continue; + + user[1].write(writer.buffer); + } + + tickUser[6] = [tickUser[4][0], tickUser[4][1], tickUser[4][2]]; + } else { + if (Math.floor(tickUser[4][0]) != Math.floor(tickUser[6][0]) || Math.floor(tickUser[4][1]) != Math.floor(tickUser[6][1]) || Math.floor(tickUser[4][2]) != Math.floor(tickUser[6][2])) { + const relX = Math.floor(((tickUser[4][0] - tickUser[6][0]) * 32)); + const relY = Math.floor(((tickUser[4][1] - tickUser[6][1]) * 32)); + const relZ = Math.floor(((tickUser[4][2] - tickUser[6][2]) * 32)); + + const writer = new myman.Writer(); + + if ((relX < -128 || relX >= 128 || relY < -128 || relY >= 128 || relZ < -128 || relZ >= 128 )) { + writer.writeByte(0x22); + writer.writeInt(tickUser[0]); + writer.writeInt(Math.floor(tickUser[4][0] * 32)); + writer.writeInt(Math.floor(tickUser[4][1] * 32)); + writer.writeInt(Math.floor(tickUser[4][2] * 32)); + writer.writeByte(Math.floor((tickUser[5][0] * 256) / 360)); + writer.writeByte(Math.floor((tickUser[5][1] * 256) / 360)); + } else { + writer.writeByte(0x1F); + writer.writeInt(tickUser[0]); + writer.writeByte(-relX); + writer.writeByte(relY); + writer.writeByte(-relZ); + } + + for (let user of users) { + if (user[0] == tickUser[0]) continue; + + user[1].write(writer.buffer); + } + + tickUser[6][0] = tickUser[4][0]; + tickUser[6][1] = tickUser[4][1]; + tickUser[6][2] = tickUser[4][2]; + } + } + } +}, 1000 / 20); + server.on('connection', function(socket) { console.log('A new connection has been established.'); //socket.write('Hello, client.'); + const me = addUser(socket, null); + socket.on('data', function(chunk) { //console.log(chunk); @@ -33,14 +99,14 @@ server.on('connection', function(socket) { const id = reader.readByte(); - console.log(`ID: ${id}`); + //console.log(`ID: ${id}`); switch (id) { case 0: keepAlive(socket); break; case 1: - loginRequest(socket, reader); + loginRequest(socket, reader, me); break; case 2: @@ -48,13 +114,15 @@ server.on('connection', function(socket) { break; case 3: - sendChat(socket, reader); + sendChat(reader, me); break; case 0x0B: - playerLook(socket, reader); + playerPos(reader, me); break; } + + //if (me[3]) teleportPlayer(me[1], 16 * me[0], 65 + 1.6200000047683716, 65, 0, -180 * (me[0] - 1), 0); }); socket.on('end', function() { @@ -66,15 +134,18 @@ server.on('connection', function(socket) { }); }); -function keepAlive(socket) { +function keepAlive(socket, reader = new myman.Reader) { + const thething = reader.readInt(); + const writer = new myman.Writer(); writer.writeByte(0x00); + writer.writeInt(thething); socket.write(writer.buffer); } -function loginRequest(socket, reader = new myman.Reader) { +function loginRequest(socket, reader = new myman.Reader, me = [0, null, ""]) { const proto = reader.readInt(); const username = reader.readString(); const mapSeed = reader.readLong(); @@ -83,6 +154,8 @@ function loginRequest(socket, reader = new myman.Reader) { console.log("Protocol Version: " + proto); console.log("Username: " + username); + me[2] = username; + const writer = new myman.Writer(); writer.writeByte(0x01); @@ -115,6 +188,82 @@ function loginRequest(socket, reader = new myman.Reader) { writer.writeBool(true); socket.write(writer.buffer); + + sendMessage(`\u00A7e${username} has joined the game`); + + me[3] = true; + + // I couldn't figure out how to construct a chunk lmao + // ima just send each block individually + // TODO: yknow, figure out how to chunk. + for (let x = 0; x < 16; x++) { + for (let z = 0; z < 16; z++) { + writer.reset(); + writer.writeByte(0x35); + + writer.writeInt(x); + writer.writeByte(63); // 63 == 64 because the y byte has 1 subtracted from it + writer.writeInt(z); + writer.writeByte(1); // Block ID + writer.writeByte(0); // Metadata + socket.write(writer.buffer); + } + } + + writer.buffer = Buffer.alloc(0); + + // Spawn this player for other players + writer.writeByte(0x14); + writer.writeInt(me[0]); + writer.writeString(me[2]); + writer.writeInt(0); + writer.writeInt(65 * 32); + writer.writeInt(0); + writer.writeByte(0); + writer.writeByte(0); + writer.writeShort(0); + + for (let user of users) { + if (user[0] == me[0]) continue; + + user[1].write(writer.buffer); + } + + // Send other players to this player + for (let user of users) { + if (user[0] == me[0]) continue; + + writer.reset(); + + writer.writeByte(0x14); + writer.writeInt(user[0]); + writer.writeString(user[2]); + writer.writeInt(0); + writer.writeInt(65 * 32); + writer.writeInt(0); + writer.writeByte(0); + writer.writeByte(0); + writer.writeShort(0); + + socket.write(writer.buffer); + } + + // spawned player equipment + for (let i = 0; i < 5; i++) { + writer.buffer = Buffer.alloc(0); + + writer.writeByte(0x05); + writer.writeInt(me[0]); + writer.writeShort(i); + writer.writeShort(-1); + writer.writeShort(0); + + for (let user of users) { + if (user[0] == me[0]) continue; + + user[1].write(writer.buffer); + } + } } function handshake(socket, reader = new myman.Reader) { @@ -129,7 +278,7 @@ function handshake(socket, reader = new myman.Reader) { socket.write(writer.buffer); } -function sendChat(socket, reader = new myman.Reader) { +function sendChat(reader = new myman.Reader, sender) { const message = reader.readString(); if (message.length < 120) { @@ -137,24 +286,81 @@ function sendChat(socket, reader = new myman.Reader) { writer.writeByte(0x03); - writer.writeString(message); + if (sender != null) writer.writeString(`<${sender[2]}> ${message}`); - socket.write(writer.buffer); + for (let user of users) { + user[1].write(writer.buffer); + } } } -function playerLook(socket, reader = new myman.Reader) { +function sendMessage(message = "") { + if (message.length < 120) { + const writer = new myman.Writer(); + + writer.writeByte(0x03); + + writer.writeString(message); + + for (let user of users) { + user[1].write(writer.buffer); + } + } +} + +function playerPos(reader = new myman.Reader, me) { const x = reader.readDouble(); const y = reader.readDouble(); const stance = reader.readDouble(); const z = reader.readDouble(); const onGround = reader.readBool(); - /*console.log("X: " + x); - console.log("Y: " + y); - console.log("Z: " + z); + /*console.log("X: " + ); + console.log("Y: " + ); + console.log("Z: " + ); console.log("Stance: " + stance); console.log("On Ground: " + onGround);*/ + + /*const writer = new myman.Writer(); + + const shouldTeleport = (Math.abs(Math.floor(x * 32)) >= 8 || Math.abs(Math.floor(y * 32)) >= 8 || Math.abs(Math.floor(z * 32)) >= 8); + + const relX = Math.floor(((x - me[4][0]) * 32)); + const relY = Math.floor(((y - me[4][1]) * 32)); + const relZ = Math.floor(((z - me[4][2]) * 32));*/ + + /*if ((relX < -128 || relX >= 128 || relY < -128 || relY >= 128 || relZ < -128 || relZ >= 128 )) { + writer.writeByte(0x22); + writer.writeInt(me[0]); + writer.writeInt(Math.floor(x * 32)); + writer.writeInt(Math.floor(y * 32)); + writer.writeInt(Math.floor(z * 32)); + writer.writeByte(Math.floor((me[5][0] * 256) / 360)); + writer.writeByte(Math.floor((me[5][1] * 256) / 360)); + } else { + writer.writeByte(0x1F); + writer.writeInt(me[0]); + writer.writeByte(-relX); + writer.writeByte(relY); + writer.writeByte(-relZ); + }*/ + + /*for (let user of users) { + if (user[0] == me[0]) continue; + + user[1].write(writer.buffer); + }*/ + + me[7] = true; + + me[4][0] = x; + me[4][1] = y; + me[4][2] = z; +} + +function playerLook(reader = new myman.Reader, me) { + const yaw = reader.readFloat(); + const pitch = reader.readFloat(); } // Write @@ -194,5 +400,21 @@ function writeChunk(socket) { writer.writeByte(defl[i] - 128); // Compressed data } + socket.write(writer.buffer); +} + +function teleportPlayer(socket, x = 0.0, y = 1.6200000047683716, stance = 0.0, z = 0.0, yaw = 0.0, pitch = 0.0) { + const writer = new myman.Writer(); + + writer.writeByte(0x0D); // Player pos and view direction + + writer.writeDouble(x); + writer.writeDouble(stance); + writer.writeDouble(y); + writer.writeDouble(z); + writer.writeFloat(yaw); + writer.writeFloat(pitch); + writer.writeBool(false); + socket.write(writer.buffer); } \ No newline at end of file