server tick lmao

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)) {

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("X: " + );
-	console.log("Y: " + y);
+	console.log("Y: " + );
-	console.log("Z: " + z);
+	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);
 }