feat: begin working on compression

Author: andybrwr

Cargo.lock

@@ -32,6 +32,7 @@ clap = { version = "4.5.20", features = ["derive"] }
 color-eyre = "0.6.3"
 fastanvil = { git = "https://github.com/owengage/fastnbt.git" }
 fastnbt = { git = "https://github.com/owengage/fastnbt.git" }
+flate2 = { version = "1.0.35", default-features = false, features = ["zlib-ng"] }
 rand = "0.8.5"
 rayon = "1.10.0"
 serde = { version = "1.0.213", features = ["derive"] }

Cargo.toml

@@ -80,7 +80,7 @@
               cargoLock.outputHashes."fastnbt-2.5.0" = "E4WI6SZgkjqUOtbfXfKGfpFH7btEh5V0KpMXSIsuh08=";
               inherit buildType;
               dontStrip = buildType == "debug";
-              buildInputs = with pkgs; [pkg-config openssl];
+              buildInputs = with pkgs; [pkg-config openssl cmake];
             };
         in {
           default = mkCrawlspace "debug";

flake.nix

@@ -24,16 +24,18 @@ use color_eyre::eyre::{Context, Result};
 use tokio::{
     io::{AsyncReadExt, AsyncWriteExt},
     net::TcpStream,
+    sync::RwLock,
 };
 
-use crate::protocol::{self, ClientboundPacket, Frame, ServerboundPacket};
+use crate::protocol::{self, datatypes::VarInt, ClientboundPacket, Frame, ServerboundPacket};
 
 #[derive(Debug)]
 pub struct NetIo {
     stream: TcpStream,
     frame: Frame,
     decoder: protocol::Decoder,
     encoder: protocol::Encoder,
+    compression: RwLock<Option<VarInt>>,
 }
 
 const BUF_SIZE: usize = 4096;
@@ -58,6 +60,7 @@ impl NetIo {
             },
             decoder: protocol::Decoder::new(),
             encoder: protocol::Encoder::new(),
+            compression: RwLock::new(None),
         }
     }