add Player interface

src/main/java/mc/core/NetChannel.java

@@ -0,0 +1,12 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-04-13
+ */
+package mc.core;
+
+public interface NetChannel {
+    void write(Object obj);
+    void flush();
+    void writeAndFlush(Object obj);
+
+}

src/main/java/mc/core/Player.java

@@ -0,0 +1,14 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-04-13
+ */
+package mc.core;
+
+import java.net.InetAddress;
+
+public interface Player {
+    int getId();
+    String getName();
+    InetAddress getAddress();
+    NetChannel getChannel();
+}

src/main/java/mc/core/netty/proto_125/PacketDecoder.java

@@ -10,6 +10,7 @@ import io.netty.handler.codec.ByteToMessageDecoder;
 import lombok.extern.slf4j.Slf4j;
 import mc.core.CSPacket;
 import mc.core.NetStream;
+import mc.core.netty.proto_125.wrappers.WrapperNetStream;
 
 import java.util.List;
 

src/main/java/mc/core/netty/proto_125/wrappers/WrapperNetChannel.java

@@ -0,0 +1,29 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-04-13
+ */
+package mc.core.netty.proto_125.wrappers;
+
+import io.netty.channel.Channel;
+import lombok.RequiredArgsConstructor;
+import mc.core.NetChannel;
+
+@RequiredArgsConstructor
+public class WrapperNetChannel implements NetChannel {
+    private final Channel channel;
+
+    @Override
+    public void write(Object obj) {
+        channel.write(obj);
+    }
+
+    @Override
+    public void flush() {
+        channel.flush();
+    }
+
+    @Override
+    public void writeAndFlush(Object obj) {
+        channel.writeAndFlush(obj);
+    }
+}

src/main/java/mc/core/netty/proto_125/wrappers/WrapperNetStream.java

@@ -2,7 +2,7 @@
  * DmitriyMX <dimon550@gmail.com>
  * 2018-04-08
  */
-package mc.core.netty.proto_125;
+package mc.core.netty.proto_125.wrappers;
 
 import io.netty.buffer.ByteBuf;
 import lombok.RequiredArgsConstructor;