68 lines
No EOL
1.9 KiB
TypeScript
68 lines
No EOL
1.9 KiB
TypeScript
import { deflate } from "zlib";
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import { Reader, Writer } from "../../bufferStuff";
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import { Packets } from "../enums/Packets";
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import { IPacket } from "./IPacket";
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import { Chunk } from "../Chunk";
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export class PacketMapChunk implements IPacket {
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public packetId = Packets.MapChunk;
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public x:number;
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public y:number;
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public z:number;
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public sizeX:number;
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public sizeY:number;
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public sizeZ:number;
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public chunk:Chunk;
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public constructor(x:number, y:number, z:number, sizeX:number, sizeY:number, sizeZ:number, chunk:Chunk) {
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this.x = x;
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this.y = y;
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this.z = z;
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this.sizeX = sizeX;
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this.sizeY = sizeY;
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this.sizeZ = sizeZ;
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this.chunk = chunk;
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}
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public readData(reader:Reader) {
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return this;
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}
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public writeData() {
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return new Promise<Buffer>((resolve, reject) => {
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const blocks = new Writer(32768);
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const metadata = new Writer(16384);
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const lighting = new Writer(32768);
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let blockMeta = false;
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for (let x = 0; x < 16; x++) {
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for (let z = 0; z < 16; z++) {
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for (let y = 0; y < 128; y++) {
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blocks.writeUByte(this.chunk.getBlockId(x, y, z));
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if (blockMeta) {
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metadata.writeUByte(0);
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// Light level 15 for 2 blocks (1111 1111)
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lighting.writeUByte(0xff); // TODO: Lighting (Client seems to do it's own (when a block update happens) so it's not top priority)
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lighting.writeUByte(0xff);
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}
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// Hack for nibble stuff
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blockMeta = !blockMeta;
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}
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}
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}
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// Write meta and lighting data into block buffer for compression
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blocks.writeBuffer(metadata.toBuffer()).writeBuffer(lighting.toBuffer());
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deflate(blocks.toBuffer(), (err, data) => {
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if (err) {
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return reject(err);
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}
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resolve(new Writer(18).writeUByte(this.packetId).writeInt(this.x << 4).writeShort(this.y).writeInt(this.z << 4).writeUByte(this.sizeX).writeUByte(this.sizeY).writeUByte(this.sizeZ).writeInt(data.length).writeBuffer(data).toBuffer());
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});
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});
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}
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} |