Set headless to host when headless

rust/src/cli_parser.rs

@@ -1,6 +1,9 @@
 use std::net::SocketAddr;
 
-use godot::{classes::Os, prelude::*};
+use godot::{
+    classes::{DisplayServer, Os},
+    prelude::*,
+};
 
 use crate::{
     game::{Game, GameManager},
@@ -88,7 +91,9 @@ impl INode3D for CliParser {
             .connect_other(self, |s| s.on_join_lobby());
 
         if let Some(port) = options.host {
-            NetworkManager::singleton().bind_mut().host(port, false);
+            NetworkManager::singleton()
+                .bind_mut()
+                .host(port, DisplayServer::singleton().get_name() == "headless");
         } else if let Some(addr) = options.join {
             NetworkManager::singleton().bind_mut().join_directly(addr);
         }