per player hand restrictions

* optimized code

src/main/java/one/oth3r/sit/SitClient.java

@@ -0,0 +1,24 @@
+package one.oth3r.sit;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents;
+
+public class SitClient implements ClientModInitializer {
+    public static boolean inGame = false;
+    @Override
+    public void onInitializeClient() {
+        ClientPlayConnectionEvents.JOIN.register((handler, sender, client) -> {
+            inGame = true;
+            // send a data packet whenever joining a server
+            client.execute(SitClient::sendPackets);
+        });
+        // reset inGame
+        ClientPlayConnectionEvents.DISCONNECT.register((handler, client) -> inGame = false);
+    }
+    public static void sendPackets() {
+        Gson gson = new GsonBuilder().disableHtmlEscaping().create();
+        new PacketBuilder(gson.toJson(Utl.getHandSettings())).send();
+    }
+}