SetExperiencePacket

protocol/src/main/java/mc/protocol/State.java

@@ -60,6 +60,7 @@ public enum State {
 					JoinGamePacket.class, 0x23,
 					PlayerAbilitiesPacket.class,0x2C,
 					SPlayerPositionAndLookPacket.class, 0x2F,
+					SetExperiencePacket.class, 0x40,
 					SpawnPositionPacket.class, 0x46
 			)
 	);

protocol/src/main/java/mc/protocol/packets/server/SetExperiencePacket.java

@@ -0,0 +1,35 @@
+package mc.protocol.packets.server;
+
+import lombok.Data;
+import mc.protocol.io.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Set Experience packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD            | TYPE     | NOTES                  |
+ * |------------------|----------|------------------------|
+ * | Experience bar   | Float    | Значение от 0.0 до 1.0 |
+ * | Level            | VarInt   |                        |
+ * | Total Experience | VarInt   |                        |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Set_Experience">Set Experience</a>
+ * @see <a href="https://minecraft.fandom.com/wiki/Experience#Leveling_up">Experience: Leveling up</a>
+ */
+@Data
+public class SetExperiencePacket implements ServerSidePacket {
+
+	private float experienceBar;
+	private int level;
+	private int totalExperience;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeFloat(this.experienceBar);
+		netByteBuf.writeVarInt(this.level);
+		netByteBuf.writeVarInt(this.totalExperience);
+	}
+}