lol
This commit is contained in:
parent
7ed2800c12
commit
86d17234ca
4 changed files with 384 additions and 0 deletions
122
bufferStuff.js
Normal file
122
bufferStuff.js
Normal file
|
@ -0,0 +1,122 @@
|
|||
module.exports.Writer = class {
|
||||
constructor() {
|
||||
this.buffer = Buffer.alloc(0);
|
||||
this.offset = 0;
|
||||
}
|
||||
|
||||
writeBuffer(buff = Buffer.alloc(0)) {
|
||||
this.buffer = Buffer.concat([this.buffer, buff], this.buffer.length + buff.length);
|
||||
}
|
||||
|
||||
writeBool(data = false) {
|
||||
this.writeByte(data ? 1 : 0);
|
||||
}
|
||||
|
||||
writeByte(data = 0) {
|
||||
const buff = Buffer.alloc(1);
|
||||
buff.writeInt8(data, 0);
|
||||
|
||||
this.writeBuffer(buff);
|
||||
}
|
||||
|
||||
writeShort(data = 0) {
|
||||
const buff = Buffer.alloc(2);
|
||||
buff.writeIntBE(data, 0, 2);
|
||||
|
||||
this.writeBuffer(buff);
|
||||
}
|
||||
|
||||
writeInt(data = 0) {
|
||||
const buff = Buffer.alloc(4);
|
||||
buff.writeIntBE(data, 0, 4);
|
||||
|
||||
this.writeBuffer(buff);
|
||||
}
|
||||
|
||||
writeLong(data = 0) {
|
||||
const buff = Buffer.alloc(8);
|
||||
buff.writeBigInt64BE(BigInt(data), 0);
|
||||
|
||||
this.writeBuffer(buff);
|
||||
}
|
||||
|
||||
writeFloat(data = 0.0) {
|
||||
const buff = Buffer.alloc(4);
|
||||
buff.writeFloatBE(data, 0);
|
||||
|
||||
this.writeBuffer(buff);
|
||||
}
|
||||
|
||||
writeDouble(data = 0.0) {
|
||||
const buff = Buffer.alloc(8);
|
||||
buff.writeDoubleBE(data, 0);
|
||||
|
||||
this.writeBuffer(buff);
|
||||
}
|
||||
|
||||
writeString(string = "") {
|
||||
this.writeShort(string.length);
|
||||
|
||||
for (let i = 0; i < string.length; i++) {
|
||||
this.writeShort(string.charCodeAt(i));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
module.exports.Reader = class {
|
||||
constructor(buffer = Buffer.alloc(0)) {
|
||||
this.buffer = buffer;
|
||||
this.offset = 0;
|
||||
}
|
||||
|
||||
readBool() {
|
||||
return this.readByte() == 0x01 ? true : false;
|
||||
}
|
||||
|
||||
readByte() {
|
||||
const data = this.buffer.readInt8(this.offset);
|
||||
this.offset += 1;
|
||||
return data;
|
||||
}
|
||||
|
||||
readShort() {
|
||||
const data = this.buffer.readIntBE(this.offset, 2);
|
||||
this.offset += 2;
|
||||
return data;
|
||||
}
|
||||
|
||||
readInt() {
|
||||
const data = this.buffer.readIntBE(this.offset, 4);
|
||||
this.offset += 4;
|
||||
return data;
|
||||
}
|
||||
|
||||
readLong() {
|
||||
const data = this.buffer.readBigInt64BE(this.offset);
|
||||
this.offset += 8;
|
||||
return data;
|
||||
}
|
||||
|
||||
readFloat() {
|
||||
const data = this.buffer.readFloatBE(this.offset);
|
||||
this.offset += 4;
|
||||
return data;
|
||||
}
|
||||
|
||||
readDouble() {
|
||||
const data = this.buffer.readDoubleBE(this.offset);
|
||||
this.offset += 8;
|
||||
return data;
|
||||
}
|
||||
|
||||
readString() {
|
||||
const length = this.readShort();
|
||||
let data = "";
|
||||
|
||||
for (let i = 0; i < length; i++) {
|
||||
data += String.fromCharCode(this.readShort());
|
||||
}
|
||||
|
||||
return data;
|
||||
}
|
||||
}
|
67
chunk.js
Normal file
67
chunk.js
Normal file
|
@ -0,0 +1,67 @@
|
|||
const nibbleArray = require("./nibbleArray.js");
|
||||
|
||||
module.exports = class {
|
||||
constructor(xPos = 0, zPos = 0) {
|
||||
this.xPos = xPos;
|
||||
this.zPos = zPos;
|
||||
|
||||
this.blocks = Buffer.alloc(256 * 128);
|
||||
|
||||
this.data = new nibbleArray(this.blocks.length, 7);
|
||||
|
||||
this.skylightMap = new nibbleArray(this.blocks.length, 7);
|
||||
|
||||
this.blocklightMap = new nibbleArray(this.blocks.length, 7);
|
||||
}
|
||||
|
||||
getChunkData(xPos, yPos, zPos, l, i1, j1) {
|
||||
let abyte0 = Buffer.alloc((l * i1 * j1 * 5) / 2);
|
||||
let k1 = xPos >> 4;
|
||||
let l1 = zPos >> 4;
|
||||
let i2 = (xPos + l) - 1 >> 4;
|
||||
let j2 = (zPos + j1) - 1 >> 4;
|
||||
let k2 = 0;
|
||||
let l2 = yPos;
|
||||
let i3 = yPos + i1;
|
||||
if(l2 < 0)
|
||||
{
|
||||
l2 = 0;
|
||||
}
|
||||
if(i3 > 128)
|
||||
{
|
||||
i3 = 128;
|
||||
}
|
||||
for(let j3 = k1; j3 <= i2; j3++)
|
||||
{
|
||||
let k3 = xPos - j3 * 16;
|
||||
let l3 = (xPos + l) - j3 * 16;
|
||||
if(k3 < 0)
|
||||
{
|
||||
k3 = 0;
|
||||
}
|
||||
if(l3 > 16)
|
||||
{
|
||||
l3 = 16;
|
||||
}
|
||||
for(let i4 = l1; i4 <= j2; i4++)
|
||||
{
|
||||
let j4 = k - i4 * 16;
|
||||
let k4 = (k + j1) - i4 * 16;
|
||||
if(j4 < 0)
|
||||
{
|
||||
j4 = 0;
|
||||
}
|
||||
if(k4 > 16)
|
||||
{
|
||||
k4 = 16;
|
||||
}
|
||||
k2 = getChunkFromChunkCoords(j3, i4).getChunkData(abyte0, k3, l2, j4, l3, i3, k4, k2);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return abyte0;
|
||||
}
|
||||
|
||||
|
||||
}
|
149
index.js
Normal file
149
index.js
Normal file
|
@ -0,0 +1,149 @@
|
|||
const net = require('net');
|
||||
const port = 25565;
|
||||
|
||||
const { createGzip, deflate } = require("zlib");
|
||||
|
||||
const chunk = require("./chunk.js");
|
||||
|
||||
const myman = require("./bufferStuff.js");
|
||||
|
||||
const server = new net.Server();
|
||||
|
||||
const protocolVersion = 14;
|
||||
|
||||
server.listen(port, function() {
|
||||
console.log(`Server listening for connection requests on socket localhost:${port}`);
|
||||
});
|
||||
|
||||
server.on('connection', function(socket) {
|
||||
console.log('A new connection has been established.');
|
||||
|
||||
//socket.write('Hello, client.');
|
||||
|
||||
socket.on('data', function(chunk) {
|
||||
//console.log(chunk);
|
||||
|
||||
const reader = new myman.Reader(chunk);
|
||||
|
||||
const id = reader.readByte();
|
||||
|
||||
console.log(`ID: ${id}`);
|
||||
switch (id) {
|
||||
case 0:
|
||||
keepAlive(socket);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
loginRequest(socket, reader);
|
||||
break;
|
||||
|
||||
case 2:
|
||||
handshake(socket, reader);
|
||||
break;
|
||||
|
||||
case 0x0B:
|
||||
playerLook(socket, reader);
|
||||
break;
|
||||
}
|
||||
});
|
||||
|
||||
socket.on('end', function() {
|
||||
console.log('Closing connection with the client');
|
||||
});
|
||||
|
||||
socket.on('error', function(err) {
|
||||
console.log(`Error: ${err}`);
|
||||
});
|
||||
});
|
||||
|
||||
function keepAlive(socket) {
|
||||
const writer = new myman.Writer();
|
||||
|
||||
writer.writeByte(0x00);
|
||||
|
||||
socket.write(writer.buffer);
|
||||
}
|
||||
|
||||
function loginRequest(socket, reader = new myman.Reader) {
|
||||
const proto = reader.readInt();
|
||||
const username = reader.readString();
|
||||
const mapSeed = reader.readLong();
|
||||
const dimension = reader.readByte();
|
||||
|
||||
console.log("Protocol Version: " + proto);
|
||||
console.log("Username: " + username);
|
||||
|
||||
const writer = new myman.Writer();
|
||||
|
||||
writer.writeByte(0x01);
|
||||
|
||||
writer.writeInt(1);
|
||||
writer.writeString("");
|
||||
writer.writeLong(971768181197178410);
|
||||
writer.writeByte(0);
|
||||
|
||||
socket.write(writer.buffer);
|
||||
|
||||
writer.buffer = Buffer.alloc(0);
|
||||
|
||||
writer.writeByte(0x06);
|
||||
|
||||
writer.writeInt(0);
|
||||
writer.writeInt(65);
|
||||
writer.writeInt(0);
|
||||
|
||||
socket.write(writer.buffer);
|
||||
|
||||
preChunk(socket, 0, 0, true);
|
||||
}
|
||||
|
||||
function handshake(socket, reader = new myman.Reader) {
|
||||
const username = reader.readString();
|
||||
|
||||
const writer = new myman.Writer();
|
||||
|
||||
writer.writeByte(0x02);
|
||||
|
||||
writer.writeString("-");
|
||||
|
||||
socket.write(writer.buffer);
|
||||
}
|
||||
|
||||
function playerLook(socket, reader = new myman.Reader) {
|
||||
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("Stance: " + stance);
|
||||
console.log("On Ground: " + onGround);*/
|
||||
}
|
||||
|
||||
// Write
|
||||
|
||||
function preChunk(socket, x, y, load = false) {
|
||||
const writer = new myman.Writer();
|
||||
|
||||
writer.writeByte(0x32);
|
||||
writer.writeInt(x);
|
||||
writer.writeInt(y);
|
||||
writer.writeBool(load);
|
||||
|
||||
socket.write(writer.buffer);
|
||||
}
|
||||
|
||||
function writeChunk() {
|
||||
const writer = new myman.Writer();
|
||||
|
||||
writer.writeByte(0x33); // ID
|
||||
writer.writeInt(0); // Chunk X
|
||||
writer.writeShort(0); // Chunk Y
|
||||
writer.writeByte(15); // Chunk Z
|
||||
writer.writeByte(127); // Chunk Size X
|
||||
writer.writeByte(15); // Chunk Size Y
|
||||
writer.writeInt(5); // Chunk Size Z
|
||||
}
|
46
nibbleArray.js
Normal file
46
nibbleArray.js
Normal file
|
@ -0,0 +1,46 @@
|
|||
module.exports = class {
|
||||
constructor(i, j) {
|
||||
if (i instanceof Buffer) {
|
||||
this.data = abyte0;
|
||||
this.field_35661_b = i;
|
||||
this.field_35662_c = i + 4;
|
||||
} else {
|
||||
this.data = new Buffer.alloc(i >> 1);
|
||||
this.field_35661_b = j;
|
||||
this.field_35662_c = j + 4;
|
||||
}
|
||||
}
|
||||
|
||||
getNibble(i, j, k)
|
||||
{
|
||||
let l = i << field_35662_c | k << field_35661_b | j;
|
||||
let i1 = l >> 1;
|
||||
let j1 = l & 1;
|
||||
if(j1 == 0)
|
||||
{
|
||||
return data[i1] & 0xf;
|
||||
} else
|
||||
{
|
||||
return data[i1] >> 4 & 0xf;
|
||||
}
|
||||
}
|
||||
|
||||
setNibble(i, j, k, l)
|
||||
{
|
||||
let i1 = i << this.field_35662_c | k << this.field_35661_b | j;
|
||||
let j1 = i1 >> 1;
|
||||
let k1 = i1 & 1;
|
||||
if(k1 == 0)
|
||||
{
|
||||
data[j1] = (this.data[j1] & 0xf0 | l & 0xf);
|
||||
} else
|
||||
{
|
||||
data[j1] = (this.data[j1] & 0xf | (l & 0xf) << 4);
|
||||
}
|
||||
}
|
||||
|
||||
isValid()
|
||||
{
|
||||
return this.data != null;
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue