carpet client synchronizations and protocols

src/main/java/carpet/network/CarpetClient.java

@@ -0,0 +1,52 @@
+package carpet.network;
+
+import carpet.CarpetServer;
+import net.minecraft.client.network.ClientPlayerEntity;
+import net.minecraft.util.Identifier;
+
+public class CarpetClient
+{
+    public static final Object sync = new Object();
+    public static final int HI = 69;
+    public static final int HELLO = 420;
+    public static final int DATA = 1;
+
+    private static ClientPlayerEntity clientPlayer = null;
+    private static boolean isServerCarpet = false;
+    public static String serverCarpetVersion;
+    public static final Identifier CARPET_CHANNEL = new Identifier("carpet:hello");
+
+    public static void gameJoined(ClientPlayerEntity player)
+    {
+        synchronized (sync)
+        {
+            clientPlayer = player;
+            // client didn't say hi back yet
+            if (isServerCarpet)
+                ClientNetworkHandler.respondHello();
+
+        }
+    }
+
+    public static void disconnect()
+    {
+        isServerCarpet = false;
+        clientPlayer = null;
+        CarpetServer.disconnect();
+    }
+
+    public static void setCarpet()
+    {
+        isServerCarpet = true;
+    }
+
+    public static ClientPlayerEntity getPlayer()
+    {
+        return clientPlayer;
+    }
+
+    public static boolean isCarpet()
+    {
+        return isServerCarpet;
+    }
+}