Change Game State

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

@@ -85,6 +85,7 @@ public enum State {
                     .put(BossBarPacket.class, 0x0C)
                     .put(ChatMessageServerPacket.class, 0x0F)
                     .put(PluginMessagePacket.class, 0x18)
+                    .put(ChangeGameState.class, 0x1E)
                     .put(KeepAlivePacket.class, 0x1F)
                     .put(JoinGamePacket.class, 0x23)
                     .put(PlayerAbilitiesPacket.class, 0x2C)

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

@@ -0,0 +1,36 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-07-27
+ */
+package mc.core.network.proto_1_12_2.packets;
+
+import lombok.RequiredArgsConstructor;
+import lombok.Setter;
+import mc.core.network.NetOutputStream;
+import mc.core.network.SCPacket;
+
+@Setter
+public class ChangeGameState implements SCPacket {
+    @RequiredArgsConstructor
+    public enum Reason {
+        INVALID_BED(0), // Would be used to switch between messages, but the only used message is 0 for invalid bed (wat?)
+        RAINING_END(1),
+        RAINING_BEGIN(2),
+        CHANGE_GAMEMODE(3), // 0: Survival, 1: Creative, 2: Adventure, 3: Spectator
+        ARROW_HITTING_PLAYER(6), // Appears to be played when an arrow strikes another player in Multiplayer
+        FADE_VALUE(7), // The current darkness value. 1 = Dark, 0 = Bright, Setting the value higher causes the game to change color and freeze
+        FADE_TIME(8), // Time in ticks for the sky to fade
+        GUARDIAN_APPEARANCE(10); // Play elder guardian mob appearance (effect and sound)
+
+        private final int id;
+    }
+
+    private Reason reason;
+    private float value;
+
+    @Override
+    public void writeSelf(NetOutputStream netStream) {
+        netStream.writeUnsignedByte(reason.id);
+        netStream.writeFloat(value);
+    }
+}