289 lines
11 KiB
TypeScript
289 lines
11 KiB
TypeScript
import { Console } from "hsconsole";
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import { Endian, IReader, createWriter } from "bufferstuff";
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import { MinecraftServer } from "./MinecraftServer";
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import { Packet } from "./enums/Packet";
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import { PacketAnimation } from "./packets/Animation";
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import { PacketChat } from "./packets/Chat"
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import { PacketEntityAction } from "./packets/EntityAction";
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import { PacketPlayer } from "./packets/Player";
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import { PacketPlayerPosition } from "./packets/PlayerPosition";
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import { PacketPlayerLook } from "./packets/PlayerLook";
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import { PacketPlayerPositionLook } from "./packets/PlayerPositionLook";
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import { PacketPlayerDigging } from "./packets/PlayerDigging";
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import { Player } from "./entities/Player";
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import { Socket } from "net";
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import Vec3 from "./Vec3";
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import { PacketRespawn } from "./packets/Respawn";
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import { PacketSpawnPosition } from "./packets/SpawnPosition";
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import { PacketPlayerBlockPlacement } from "./packets/PlayerBlockPlacement";
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import { Inventory } from "./inventories/Inventory";
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import { PacketHoldingChange } from "./packets/HoldingChange";
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import { PacketDisconnectKick } from "./packets/DisconnectKick";
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import { ItemStack } from "./inventories/ItemStack";
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import { PacketWindowItems } from "./packets/WindowItems";
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import { Block } from "./blocks/Block";
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import { EntityItem } from "./entities/EntityItem";
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export class MPClient {
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private readonly mcServer:MinecraftServer;
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private readonly socket:Socket;
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public entity:Player;
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private inventory:Inventory;
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private dimension:number;
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private holdingIndex:number = 36; // First hotbar slot.
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private diggingAt:Vec3;
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public constructor(mcServer:MinecraftServer, socket:Socket, entity:Player) {
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this.mcServer = mcServer;
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this.socket = socket;
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this.entity = entity;
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this.inventory = entity.inventory;
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this.dimension = 0;
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this.diggingAt = new Vec3();
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}
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private mapCoordsFromFace(pos:Vec3, face:number) {
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switch (face) {
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case 0:
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pos.y--;
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return pos;
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case 1:
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pos.y++;
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return pos;
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case 2:
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pos.z--;
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return pos;
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case 3:
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pos.z++;
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return pos;
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case 4:
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pos.x--;
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return pos;
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case 5:
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pos.x++;
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return pos;
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}
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}
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public handlePacket(reader:IReader) {
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const packetId = reader.readUByte();
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switch (packetId) {
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case Packet.Chat: this.handleChat(new PacketChat().readData(reader)); break;
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case Packet.Respawn: this.handlePacketRespawn(new PacketRespawn().readData(reader)); break;
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case Packet.Player: this.handlePacketPlayer(new PacketPlayer().readData(reader)); break;
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case Packet.PlayerPosition: this.handlePacketPlayerPosition(new PacketPlayerPosition().readData(reader)); break;
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case Packet.PlayerLook: this.handlePacketPlayerLook(new PacketPlayerLook().readData(reader)); break;
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case Packet.PlayerPositionLook: this.handlePacketPlayerPositionLook(new PacketPlayerPositionLook().readData(reader)); break;
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case Packet.PlayerDigging: this.handlePacketPlayerDigging(new PacketPlayerDigging().readData(reader)); break;
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case Packet.PlayerBlockPlacement: this.handlePacketBlockPlacement(new PacketPlayerBlockPlacement().readData(reader)); break;
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case Packet.HoldingChange: this.handlePacketHoldingChange(new PacketHoldingChange().readData(reader)); break;
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//case Packets.UseBed: break;
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case Packet.Animation: this.handlePacketAnimation(new PacketAnimation().readData(reader)); break;
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case Packet.EntityAction: this.handlePacketEntityAction(new PacketEntityAction().readData(reader)); break;
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case Packet.DisconnectKick: this.handleDisconnectKick(); break;
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default: return Console.printWarn(`UNIMPLEMENTED PACKET: ${Packet[packetId]}`);
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}
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if (reader.readOffset < reader.length - 1) {
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this.handlePacket(reader);
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}
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}
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private handleChat(packet:PacketChat) {
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const message = packet.message.split(" ");
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if (message[0].startsWith("/")) {
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packet.message = "";
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if (message[0] === "/tp") {
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const x = this.entity.position.x = parseFloat(message[1]);
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const y = this.entity.position.y = parseFloat(message[2]);
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const z = this.entity.position.z = parseFloat(message[3]);
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this.send(new PacketPlayerPositionLook(x, y, y + 0.62, z, 0, 0, false).writeData());
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Console.printInfo(packet.message = `Teleported ${this.entity.username} to ${message[1]} ${message[2]} ${message[3]}`);
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} else if (message[0] === "/csay") {
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this.mcServer.sendChatMessage(`[CONSOLE] ${message.slice(1, message.length).join(" ")}`);
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} else if (message[0] === "/top") {
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packet.message = `Woosh!`;
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const topBlock = this.entity.chunk.getTopBlockY(this.entity.position.x & 0xf, this.entity.position.z & 0xf);
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this.send(new PacketPlayerPosition(this.entity.position.x, topBlock + 3, topBlock + 3.62, this.entity.position.z, false).writeData());
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} else if (message[0] === "/tpx") {
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const dimension = parseInt(message[1]);
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if (this.mcServer.worlds.has(dimension)) {
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packet.message = "\u00a76Switching dimensions...";
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this.switchDimension(dimension);
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} else {
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packet.message = `\u00a7cNo dimension by id "${dimension}" exists!`;
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}
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}
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if (packet.message !== "") {
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this.send(packet.writeData());
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}
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return;
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}
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packet.message = `<${this.entity.username}> ${packet.message}`;
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Console.printInfo(`[CHAT] ${packet.message}`);
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this.mcServer.sendToAllClients(packet.writeData());
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}
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private handlePacketRespawn(packet:PacketRespawn) {
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if (!this.entity.isDead && packet.dimension === this.entity.world.dimension) {
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return;
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}
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const world = this.mcServer.worlds.get(this.entity.world.dimension);
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if (world == undefined) {
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return;
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}
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this.entity.world.removeEntity(this.entity);
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const oldPlayerEntity = this.entity;
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this.entity = new Player(this.mcServer, world, oldPlayerEntity.username);
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this.entity.position.set(8, 70, 8);
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world.addEntity(this.entity);
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this.send(new PacketRespawn(world.dimension).writeData());
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//this.send(new PacketSpawnPosition(8, 64, 8).writeData());
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this.entity.position.set(this.entity.position.x, this.entity.position.y, this.entity.position.z);
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this.send(new PacketPlayerPositionLook(this.entity.position.x, this.entity.position.y, this.entity.position.y + 0.62, this.entity.position.z, 0, 0, false).writeData());
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this.entity.forceUpdatePlayerChunks();
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}
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private handlePacketPlayer(packet:PacketPlayer) {
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this.entity.onGround = packet.onGround;
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}
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private handlePacketPlayerPosition(packet:PacketPlayerPosition) {
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this.entity.onGround = packet.onGround;
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this.entity.position.set(packet.x, packet.y, packet.z);
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}
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private handlePacketPlayerLook(packet:PacketPlayerLook) {
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this.entity.onGround = packet.onGround;
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this.entity.rotation.set(packet.yaw, packet.pitch);
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}
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private handlePacketPlayerPositionLook(packet:PacketPlayerPositionLook) {
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this.entity.onGround = packet.onGround;
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this.entity.position.set(packet.x, packet.y, packet.z);
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this.entity.rotation.set(packet.yaw, packet.pitch);
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}
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private breakBlock(brokenBlockId:number, x:number, y:number, z:number) {
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const metadata = this.entity.world.getBlockMetadata(this.diggingAt.x, this.diggingAt.y, this.diggingAt.z);
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this.entity.world.setBlockWithNotify(this.diggingAt.x, this.diggingAt.y, this.diggingAt.z, 0);
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//this.inventory.addItemStack(new ItemStack(Block.blockBehaviours[brokenBlockId].droppedItem(brokenBlockId), 1, metadata));
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//this.send(new PacketWindowItems(0, this.inventory.getInventorySize(), this.inventory.constructInventoryPayload()).writeData());
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const itemId = Block.blockBehaviours[brokenBlockId].droppedItem(brokenBlockId);
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if (itemId !== -1) {
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const itemEntity = new EntityItem(this.entity.world, new ItemStack(itemId, 1, metadata));
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itemEntity.position.set(x + 0.5, y + 0.5, z + 0.5);
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this.entity.world.addEntity(itemEntity);
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}
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}
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// TODO: Cap how far away a player is able to break blocks
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private handlePacketPlayerDigging(packet:PacketPlayerDigging) {
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// Special drop item case
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if (packet.status === 4) {
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// TODO: Handle dropping items
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return;
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}
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this.diggingAt.set(packet.x, packet.y, packet.z);
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let brokenBlockId:number;
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if (packet.status === 0) {
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// Started digging
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if ((brokenBlockId = this.entity.world.getBlockId(this.diggingAt.x, this.diggingAt.y, this.diggingAt.z)) != 0 && Block.blocks[brokenBlockId].blockStrength() >= 1) {
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this.breakBlock(brokenBlockId, this.diggingAt.x, this.diggingAt.y, this.diggingAt.z);
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}
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} else if (packet.status === 2) {
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if ((brokenBlockId = this.entity.world.getBlockId(this.diggingAt.x, this.diggingAt.y, this.diggingAt.z)) != 0) {
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this.breakBlock(brokenBlockId, this.diggingAt.x, this.diggingAt.y, this.diggingAt.z);
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}
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}
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}
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public getHeldItemStack() {
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return this.inventory.getSlotItemStack(this.holdingIndex);
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}
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private handlePacketBlockPlacement(packet:PacketPlayerBlockPlacement) {
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this.diggingAt.set(packet.x, packet.y, packet.z);
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this.mapCoordsFromFace(this.diggingAt, packet.face);
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const itemStack = this.getHeldItemStack();
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if (itemStack == null || itemStack.size == 0) {
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return;
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}
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if (itemStack.isBlock) {
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if (this.entity.world.getBlockId(this.diggingAt.x, this.diggingAt.y, this.diggingAt.z) === 0) {
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itemStack.size--;
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this.entity.world.setBlockAndMetadataWithNotify(this.diggingAt.x, this.diggingAt.y, this.diggingAt.z, itemStack.itemID, itemStack.damage);
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this.inventory.dropEmptyItemStacks();
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}
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} else {
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// TODO: Handle item usage
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}
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}
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private handlePacketHoldingChange(packet:PacketHoldingChange) {
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if (packet.slotId < 0 || packet.slotId > 8) {
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this.send(new PacketDisconnectKick("Out of Bounds Holding Index!").writeData());
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this.socket.end();
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return;
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}
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this.holdingIndex = 36 + packet.slotId;
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}
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// Animation start
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private handlePacketAnimation(packet:PacketAnimation) {
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// Forward this packet to all nearby clients
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this.entity.world.sendToNearbyClients(this.entity, packet.writeData());
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}
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private handlePacketEntityAction(packet:PacketEntityAction) {
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// Forward this packet to all nearby clients
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switch (packet.action) {
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case 1: this.entity.crouching = true; break;
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case 2: this.entity.crouching = false; break;
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case 3: break; // TODO: Leave Bed
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}
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}
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private switchDimension(dimension:number) {
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const world = this.mcServer.worlds.get(dimension);
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if (world == undefined) {
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return;
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}
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this.entity.world.removeEntity(this.entity);
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this.entity.world = world;
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world.addEntity(this.entity);
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this.send(new PacketRespawn(dimension).writeData());
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//this.send(new PacketSpawnPosition(8, 64, 8).writeData());
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this.entity.position.set(8, 60, 8);
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this.send(new PacketPlayerPositionLook(8, 70, 70.62, 8, 0, 0, false).writeData());
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this.entity.forceUpdatePlayerChunks();
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}
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private handleDisconnectKick() {
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this.socket.end();
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}
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public send(buffer:Buffer) {
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this.socket.write(buffer);
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}
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} |