SetExperiencePacket

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

@@ -59,10 +59,9 @@ public enum State {
 					ChunkDataPacket.class, 0x20,
 					JoinGamePacket.class, 0x23,
 					PlayerAbilitiesPacket.class,0x2C,
-					PlayerListItemPacket.class,0x2E,
 					SPlayerPositionAndLookPacket.class, 0x2F,
-					SpawnPositionPacket.class, 0x46,
+					SetExperiencePacket.class, 0x40,
-					PlayerListHeaderAndFooterPacket.class,0x4A
+					SpawnPositionPacket.class, 0x46
 			)
 	);
 

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

@@ -1,50 +0,0 @@
-package mc.protocol.packets.server;
-
-import lombok.Data;
-import mc.protocol.io.NetByteBuf;
-import mc.protocol.model.text.Text;
-import mc.protocol.packets.ServerSidePacket;
-import mc.protocol.serializer.TextSerializer;
-
-/**
- * Установка текста для "шапки" и "подвала" Tab-листа.
- *
- * <p>Структура пакета</p>
- * <pre>
- * | FIELD  | TYPE | NOTES |
- * |--------|------|-------|
- * | Header | Text |       |
- * | Footer | Text |       |
- * </pre>
- *
- * <p>Для удаления "шапки" и/или "подвала", нужно отправить следующий {@link Text} компонент:</p>
- * <pre>
- * {"translate":""}
- * </pre>
- *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_List_Header_And_Footer">Player List Header And Footer</a>
- * @see PlayerListItemPacket
- */
-@Data
-public class PlayerListHeaderAndFooterPacket implements ServerSidePacket {
-
-	private static final String REMOVE_COMPONENT = "{\"translate\":\"\"}";
-
-	private Text header;
-	private Text foother;
-
-	@Override
-	public void writeSelf(NetByteBuf netByteBuf) {
-		if (this.header == null) {
-			netByteBuf.writeString(REMOVE_COMPONENT);
-		} else {
-			netByteBuf.writeString(TextSerializer.toJsonObject(this.header).toString());
-		}
-
-		if (this.foother == null) {
-			netByteBuf.writeString(REMOVE_COMPONENT);
-		} else {
-			netByteBuf.writeString(TextSerializer.toJsonObject(this.foother).toString());
-		}
-	}
-}

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

@@ -1,172 +0,0 @@
-package mc.protocol.packets.server;
-
-import lombok.*;
-import mc.protocol.io.NetByteBuf;
-import mc.protocol.packets.ServerSidePacket;
-import mc.protocol.utils.GameMode;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
-import java.util.UUID;
-import java.util.function.BiConsumer;
-
-/**
- * Player List Item packet.
- *
- * <p>Обновление списка игроков, по кнопке TAB.</p>
- *
- * <p>Структура пакета</p>
- * <pre>
- * | FIELD             | TYPE        | NOTES                                           |
- * |-------------------|-------------|-------------------------------------------------|
- * | Action            | VarInt      | Определяет поля для секции "Player"             |
- * | Number of players | VarInt      | Количество элементов в секции "Players"         |
- * | Players           | Array       | Перечисление полей для каждого игрока (player). |
- * |                   |             | Поля определяются по "Action"                   |
- * </pre>
- *
- * <p>Варианты "Action"</p>
- * <pre>
- * | ACTION                      | PLAYER FIELD         | TYPE        | NOTES                                              |
- * | VALUE | DESCRIPTION         |                      |             |                                                    |
- * |-------|---------------------|----------------------|-------------|----------------------------------------------------|
- * | 0     | add player          | UUID                 | UUID        |                                                    |
- * |       |                     | Name                 | String (16) |                                                    |
- * |       |                     | Number Of Properties | VarInt      | Количество элементов "Properties"                  |
- * |       |                     | Properties           | -           | см. поля ниже                                      |
- * |       |                     | Gamemode             | VarInt      |                                                    |
- * |       |                     | Ping                 | VarInt      | в милисекундах                                     |
- * |       |                     | Has Display Name     | Boolean     |                                                    |
- * |       |                     | Display Name         | Text        | Опционально. Только если "Has Display Name" = true |
- * | 1     | update gamemode     | UUID                 | UUID        |                                                    |
- * |       |                     | Gamemode             | VarInt      |                                                    |
- * | 2     | update latency      | UUID                 | UUID        |                                                    |
- * |       |                     | Ping                 | VarInt      | (см. выше)                                         |
- * | 3     | update display name | UUID                 | UUID        |                                                    |
- * |       |                     | Has Display Name     | Boolean     |                                                    |
- * |       |                     | Display Name         | Text        | (см. выше)                                         |
- * | 4     | remove player       | UUID                 | UUID        |                                                    |
- * </pre>
- *
- * <p>Поля секции "Properties"</p>
- * <pre>
- * | FIELD     | TYPE           | NOTES                                       |
- * |-----------|-------------   |---------------------------------------------|
- * | Name      | String (32767) |                                             |
- * | Value     | String (32767) |                                             |
- * | Is Signed | Boolean        |                                             |
- * | Signature | String (32767) | Опционально. Только если "Is Signed" = true |
- * </pre>
- *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_List_Item">Player List Item</a>
- * @see PlayerListHeaderAndFooterPacket
- */
-@Data
-public class PlayerListItemPacket implements ServerSidePacket {
-
-	private final List<PlayerItem> playerItems = new ArrayList<>();
-
-	private Action action;
-
-	@Override
-	public void writeSelf(NetByteBuf netByteBuf) {
-		netByteBuf.writeVarInt(this.action.getCode());
-		netByteBuf.writeVarInt(playerItems.size());
-
-		BiConsumer<NetByteBuf, PlayerItem> consumer = null;
-		switch (this.action) {
-			//@formatter:off
-			case ADD_PLAYER: consumer = this::addPlayer; break;
-			case UPDATE_GAMEMODE: consumer = this::updateGamemode; break;
-			case UPDATE_LATENCY: consumer = this::updateLatency; break;
-			case UPDATE_DISPLAY_NAME: consumer = this::updateDisplayName; break;
-			case REMOVE_PLAYER: consumer = this::removePlayer; break;
-			//@formatter:on
-		}
-
-		Objects.requireNonNull(consumer);
-
-		for (PlayerItem playerItem : playerItems) {
-			consumer.accept(netByteBuf, playerItem);
-		}
-	}
-
-	private void addPlayer(NetByteBuf netByteBuf, PlayerItem playerItem) {
-		netByteBuf.writeUUID(playerItem.getUuid());
-		netByteBuf.writeString(playerItem.getName());
-		netByteBuf.writeVarInt(playerItem.getProperties().size());
-
-		for (PlayerProperties property : playerItem.getProperties()) {
-			netByteBuf.writeString(property.getName());
-			netByteBuf.writeString(property.getValue());
-			netByteBuf.writeBoolean(property.getIsSigned());
-			if (property.getIsSigned()) {
-				netByteBuf.writeString(property.getSignature());
-			}
-		}
-
-		netByteBuf.writeVarInt(playerItem.getGamemode().getId());
-		netByteBuf.writeVarInt(playerItem.getPing());
-		netByteBuf.writeBoolean(playerItem.getHasDisplayName());
-		if (playerItem.getHasDisplayName()) {
-			netByteBuf.writeString(playerItem.getDisplayName());
-		}
-	}
-
-	private void updateGamemode(NetByteBuf netByteBuf, PlayerItem playerItem) {
-		netByteBuf.writeUUID(playerItem.getUuid());
-		netByteBuf.writeVarInt(playerItem.getGamemode().getId());
-	}
-
-	private void updateLatency(NetByteBuf netByteBuf, PlayerItem playerItem) {
-		netByteBuf.writeUUID(playerItem.getUuid());
-		netByteBuf.writeVarInt(playerItem.getPing());
-	}
-
-	private void updateDisplayName(NetByteBuf netByteBuf, PlayerItem playerItem) {
-		netByteBuf.writeUUID(playerItem.getUuid());
-		netByteBuf.writeBoolean(playerItem.getHasDisplayName());
-		if (playerItem.getHasDisplayName()) {
-			netByteBuf.writeString(playerItem.getDisplayName());
-		}
-	}
-
-	private void removePlayer(NetByteBuf netByteBuf, PlayerItem playerItem) {
-		netByteBuf.writeUUID(playerItem.getUuid());
-	}
-
-	@RequiredArgsConstructor
-	public enum Action {
-		ADD_PLAYER(0),
-		UPDATE_GAMEMODE(1),
-		UPDATE_LATENCY(2),
-		UPDATE_DISPLAY_NAME(3),
-		REMOVE_PLAYER(4);
-
-		@Getter
-		private final int code;
-	}
-
-	@Builder(builderClassName = "Builder")
-	@Value
-	public static class PlayerItem {
-		List<PlayerProperties> properties = new ArrayList<>();
-
-		UUID uuid;
-		String name;
-		GameMode gamemode;
-		Integer ping;
-		Boolean hasDisplayName;
-		String displayName;
-	}
-
-	@Builder(builderClassName = "Builder")
-	@Value
-	public static class PlayerProperties {
-		String name;
-		String value;
-		Boolean isSigned;
-		String signature;
-	}
-}

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);
+	}
+}

server/src/main/java/mc/server/PacketHandler.java

@@ -2,13 +2,12 @@ package mc.server;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import mc.protocol.*;
+import mc.protocol.ProtocolConstant;
+import mc.protocol.State;
 import mc.protocol.api.ConnectionContext;
 import mc.protocol.model.Location;
 import mc.protocol.model.Look;
 import mc.protocol.model.ServerInfo;
-import mc.protocol.model.text.Text;
-import mc.protocol.model.text.TextColor;
 import mc.protocol.packets.PingPacket;
 import mc.protocol.packets.client.HandshakePacket;
 import mc.protocol.packets.client.LoginStartPacket;
@@ -28,6 +27,7 @@ import java.util.Base64;
 import java.util.Collections;
 import java.util.Random;
 import java.util.UUID;
+import java.util.concurrent.TimeUnit;
 
 @Slf4j
 @RequiredArgsConstructor
@@ -69,21 +69,18 @@ public class PacketHandler {
 		context.sendNow(response);
 	}
 
+	@SuppressWarnings("java:S2189")
 	public void onLoginStart(ConnectionContext context, LoginStartPacket loginStartPacket) {
-		var playerUuid = UUID.randomUUID();
-		var playerName = loginStartPacket.getName();
-		var playerGamemode = GameMode.SURVIVAL;
-
 		var loginSuccessPacket = new LoginSuccessPacket();
-		loginSuccessPacket.setUuid(playerUuid);
+		loginSuccessPacket.setUuid(UUID.randomUUID());
-		loginSuccessPacket.setName(playerName);
+		loginSuccessPacket.setName(loginStartPacket.getName());
 
 		context.sendNow(loginSuccessPacket);
 		context.setState(State.PLAY);
 
 		var joinGamePacket = new JoinGamePacket();
 		joinGamePacket.setEntityId(random.nextInt());
-		joinGamePacket.setGameMode(playerGamemode);
+		joinGamePacket.setGameMode(GameMode.SURVIVAL);
 		joinGamePacket.setDimension(0/*Overworld*/);
 		joinGamePacket.setDifficulty(Difficulty.PEACEFUL);
 		joinGamePacket.setLevelType(LevelType.FLAT);
@@ -131,30 +128,27 @@ public class PacketHandler {
 
 		// -- Эксперименты -- //
 
-		var playerListItemPacket = new PlayerListItemPacket();
+		var setExperiencePacket = new SetExperiencePacket();
-		playerListItemPacket.setAction(PlayerListItemPacket.Action.ADD_PLAYER);
+		setExperiencePacket.setExperienceBar(0f);
-		playerListItemPacket.getPlayerItems().add(PlayerListItemPacket.PlayerItem.builder()
+		setExperiencePacket.setLevel(0);
-				.uuid(playerUuid)
+		setExperiencePacket.setTotalExperience(100);
-				.name(playerName)
-				.gamemode(playerGamemode)
-				.ping(100)
-				.hasDisplayName(false)
-				.build());
 
-		context.send(playerListItemPacket);
+		while (true) {
+			context.sendNow(setExperiencePacket);
 
-		var playerListHeaderAndFooterPacket = new PlayerListHeaderAndFooterPacket();
+			setExperiencePacket.setExperienceBar(setExperiencePacket.getExperienceBar() + 0.01f);
-		playerListHeaderAndFooterPacket.setHeader(Text.builder()
+			setExperiencePacket.setLevel(setExperiencePacket.getLevel() + 1);
-				.append("") //TODO bug component
+			if (setExperiencePacket.getExperienceBar() > 1.0f) {
-				.append(Text.of(TextColor.GREEN, "==="))
+				setExperiencePacket.setExperienceBar(0f);
-				.append(Text.of(TextColor.RED, " MC-PROJECT "))
+				setExperiencePacket.setLevel(0);
-				.append(Text.of(TextColor.GREEN, "==="))
+			}
-				.build());
-		playerListHeaderAndFooterPacket.setFoother(Text.of(TextColor.GRAY, "develop by DmitriyMX"));
 
-		context.send(playerListHeaderAndFooterPacket);
+			try {
-
+				TimeUnit.MILLISECONDS.sleep(10);
-		context.flushSending();
+			} catch (InterruptedException e) {
+				break;
+			}
+		}
 	}
 
 	private static String faviconToBase64(Path iconPath) {