Games: Add Project Zomboid support.

src/games/mod.rs

@@ -63,3 +63,5 @@ pub mod ror2;
 pub mod bat1944;
 /// Black Mesa
 pub mod bm;
+/// Project Zomboid
+pub mod pz;

src/games/pz.rs

@@ -0,0 +1,12 @@
+use crate::GDResult;
+use crate::protocols::valve;
+use crate::protocols::valve::{game, SteamID};
+
+pub fn query(address: &str, port: Option<u16>) -> GDResult<game::Response> {
+    let valve_response = valve::query(address, match port {
+        None => 16261,
+        Some(port) => port
+    }, SteamID::PZ.as_app(), None, None)?;
+
+    Ok(game::Response::new_from_valve_response(valve_response))
+}

src/protocols/valve/types.rs

@@ -173,6 +173,8 @@ pub enum SteamID {
     INSMIC = 17700,
     /// ARMA 2: Operation Arrowhead
     ARMA2OA = 33930,
+    /// Project Zomboid
+    PZ = 108600,
     /// Insurgency
     INS = 222880,
     /// Sven Co-op