Keep Alive

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/State.java

@@ -49,12 +49,14 @@ public enum State {
                     .put(0x02, ChatMessagePacket.class)
                     .put(0x04, ClientSettingsPacket.class)
                     .put(0x09, PluginMessagePacket.class)
+                    .put(0x0B, KeepAlivePacket.class)
                     .put(0x0E, PlayerPositionAndLookPacket.class)
                     .put(0x1A, HeldItemChangePacket.class)
                     .put(0x1D, AnimationPacket.class)
                     .build(),
             ImmutableBiMap.<Class<? extends SCPacket>, Integer>builder()
                     .put(PluginMessagePacket.class, 0x18)
+                    .put(KeepAlivePacket.class, 0x1F)
                     .put(JoinGamePacket.class, 0x23)
                     .put(SpawnPositionPacket.class, 0x46)
                     .put(PlayerAbilitiesPacket.class, 0x2C)

proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/packets/KeepAlivePacket.java

@@ -0,0 +1,31 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-06-23
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.AllArgsConstructor;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import lombok.ToString;
+import mc.core.network.CSPacket;
+import mc.core.network.NetStream;
+import mc.core.network.SCPacket;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Setter
+@ToString
+public class KeepAlivePacket implements CSPacket, SCPacket {
+    private long payload;
+
+    @Override
+    public void readSelf(NetStream netStream) {
+        this.payload = netStream.readLong();
+    }
+
+    @Override
+    public void writeSelf(NetStream netStream) {
+        netStream.writeLong(this.payload);
+    }
+}