Scoreboard works

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

@@ -50,18 +50,20 @@ public enum State {
 					0x0B, PingPacket.class,
 					0x0D, PlayerPositionPacket.class,
 					0x0E, CPlayerPositionAndLookPacket.class,
-					0x0F, PlayerLookPacket.class,
-					0x15, EntityActionPacket.class
+					0x0F, PlayerLookPacket.class
 			),
 			// client bound
 			Map.of(
 					PingPacket.class, 0x1F,
-					ChunkDataPacket.class, 0x20,
 					JoinGamePacket.class, 0x23,
+					ScoreboardDisplayPacket.class, 0x3B,
+					ScoreboardObjectivePacket.class, 0x42,
+					TeamsPacket.class, 0x44,
+					ScoreboardUpdateScorePacket.class, 0x45,
+					SpawnPositionPacket.class, 0x46,
+					ChunkDataPacket.class, 0x20,
 					PlayerAbilitiesPacket.class,0x2C,
-					SPlayerPositionAndLookPacket.class, 0x2F,
-					SetExperiencePacket.class, 0x40,
-					SpawnPositionPacket.class, 0x46
+					SPlayerPositionAndLookPacket.class, 0x2F
 			)
 	);
 

protocol/src/main/java/mc/protocol/io/NetByteBuf.java

@@ -99,6 +99,11 @@ public class NetByteBuf extends ByteBuf {
 	}
 
 	public void writeString(String string) {
+		if (string == null) {
+			writeVarInt(0);
+			return;
+		}
+
 		byte[] buf = string.getBytes(StandardCharsets.UTF_8);
 
 		if (buf.length > Short.MAX_VALUE) {

protocol/src/main/java/mc/protocol/packets/client/EntityActionPacket.java

@@ -1,52 +0,0 @@
-package mc.protocol.packets.client;
-
-import lombok.EqualsAndHashCode;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.ToString;
-import mc.protocol.io.NetByteBuf;
-import mc.protocol.packets.ClientSidePacket;
-import mc.protocol.utils.EntityActionAction;
-
-/**
- * Entity Action packet.
- *
- * <p>Структура пакета</p>
- * <pre>
- * | FIELD      | TYPE   | NOTES                                     |
- * |------------|--------|-------------------------------------------|
- * | Entity ID  | VarInt | ID игрока                                 |
- * | Action ID  | VarInt | ID действия                               |
- * | Jump Boost | VarInt | Используется только при "Action ID" = 5.  |
- * |            |        | В этом случае значение будет от 0 до 100. |
- * |            |        | В остальных случаях значение 0.           |
- * </pre>
- *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Entity_Action" target="_top">Entity Action</a>
- */
-@NoArgsConstructor
-@Getter
-@EqualsAndHashCode
-@ToString
-public class EntityActionPacket implements ClientSidePacket {
-
-	private Integer entityId;
-	private EntityActionAction action;
-	private Integer jumpBoost;
-
-	@Override
-	public void readSelf(NetByteBuf netByteBuf) {
-		this.entityId = netByteBuf.readVarInt();
-		int actionId = netByteBuf.readVarInt();
-		this.jumpBoost = netByteBuf.readVarInt();
-
-		this.action = EntityActionAction.valueOfCode(actionId);
-	}
-
-	@Override
-	public void passivate() {
-		this.entityId = null;
-		this.action = null;
-		this.jumpBoost = null;
-	}
-}

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

@@ -0,0 +1,39 @@
+package mc.protocol.packets.server;
+
+import lombok.Data;
+import mc.protocol.io.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Отображение Scoreboard.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD      | TYPE        | NOTES                          |
+ * |------------|-------------|--------------------------------|
+ * | Position   | Byte        | Положение:                     |
+ * |            |             | 0 - list                       |
+ * |            |             | 1 - sidebar                    |
+ * |            |             | 2 - below name                 |
+ * |            |             | 3-18 - team specific sidebar   |
+ * | Score Name | String (16) | Уникальное название Scoreboard |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Display_Scoreboard" target="_top">Display Scoreboard</a>
+ */
+@Data
+public class ScoreboardDisplayPacket implements ServerSidePacket {
+
+	private int position;
+	private String scoreName;
+
+	public void setPosition(int position) {
+		this.position = (position < 0) ? 0 : (Math.min(position, 18));
+	}
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeByte(this.position);
+		netByteBuf.writeString(this.scoreName);
+	}
+}

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

@@ -0,0 +1,44 @@
+package mc.protocol.packets.server;
+
+import lombok.Data;
+import mc.protocol.io.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+import mc.protocol.utils.ScoreboardObjectiveMode;
+import mc.protocol.utils.ScoreboardObjectiveType;
+
+/**
+ * Scoreboard objective packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD           | TYPE        | NOTES                                             |
+ * |-----------------|-------------|---------------------------------------------------|
+ * | Objective Name  | String (16) | Уникальное наименование цели (objective)          |
+ * | Mode            | Byte        | 0 - создание Scoreboard                           |
+ * |                 |             | 1 - удаление Scoreboard                           |
+ * |                 |             | 2 - обновление Scoreboard                         |
+ * | Objective Value | String (32) | Если "Mode" равен 0 или 2. Отображаемый текст     |
+ * | Type            | String (16) | Если "Mode" равен 0 или 2. "integer" или "hearts" |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Scoreboard_Objective" target="_top">Scoreboard Objective</a>
+ */
+@Data
+public class ScoreboardObjectivePacket implements ServerSidePacket {
+
+	private String objectiveName;
+	private ScoreboardObjectiveMode mode;
+	private String objectiveValue;
+	private ScoreboardObjectiveType type;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeString(this.objectiveName);
+		netByteBuf.writeByte(this.mode.getCode());
+
+		if (ScoreboardObjectiveMode.CREATE.equals(this.mode) || ScoreboardObjectiveMode.UPDATE.equals(this.mode)) {
+			netByteBuf.writeString(this.objectiveValue);
+			netByteBuf.writeString(this.type.name().toLowerCase());
+		}
+	}
+}

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

@@ -0,0 +1,43 @@
+package mc.protocol.packets.server;
+
+import lombok.Data;
+import mc.protocol.io.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+import mc.protocol.utils.ScoreboardUpdateScoreAction;
+
+/**
+ * Update score packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD           | TYPE        | NOTES                                              |
+ * |-----------------|-------------|--------------------------------------------------- |
+ * | Entity Name     | String (40) | Сущность, которой принадлежит счет (score).        |
+ * |                 |             | Для Игроков - это ник                              |
+ * |                 |             | Для других сущностей - это UUID                    |
+ * | Action          | Byte        | 0 - создать или обновить счет (score); 1 - удалить |
+ * | Objective Name  | String (16) | Имя сущности, которой принадлежит счет (score)     |
+ * | Value           | VarInt      | Если "Action" = 0. Значение счета (score)          |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Update_Score" target="_top">Update Score</a>
+ */
+@Data
+public class ScoreboardUpdateScorePacket implements ServerSidePacket {
+
+	private String entityName;
+	private ScoreboardUpdateScoreAction action;
+	private String objective;
+	private int value;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeString(this.entityName);
+		netByteBuf.writeByte(this.action.getCode());
+		netByteBuf.writeString(this.objective);
+
+		if (ScoreboardUpdateScoreAction.CREATE_OR_UPDATE.equals(this.action)) {
+			netByteBuf.writeVarInt(this.value);
+		}
+	}
+}

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

@@ -1,35 +0,0 @@
-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);
-	}
-}

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

@@ -0,0 +1,119 @@
+package mc.protocol.packets.server;
+
+import lombok.Data;
+import mc.protocol.io.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+import mc.protocol.utils.TeamsCollisionRule;
+import mc.protocol.utils.TeamsMode;
+import mc.protocol.utils.TeamsNameTagVisibility;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Teams packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD       | TYPE        | NOTES                                                 |
+ * |------------ |-------------|-------------------------------------------------------|
+ * | Team Name   | String (16) | Уникальное название команды (совместно со scoreboard) |
+ * | Mode        | Byte        | Режим. Определяет остальые поля пакета                |
+ * | Data Fields | -           | Определяется "Mode"                                   |
+ * </pre>
+ *
+ * <p>Варианты "Mode"</p>
+ * <pre>
+ * | MODE                             | DATA FIELD          | TYPE                 | NOTES                                             |
+ * | VALUE | DESCRIPTION              |                     |                      |                                                   |
+ * |-------|--------------------------|---------------------|----------------------|---------------------------------------------------|
+ * | 0     | create team              | Team Display Name   | String (32)          |                                                   |
+ * |       |                          | Team Prefix         | String (16)          | Отображается перед именем игроков текущей команды |
+ * |       |                          | Team Suffix         | String (16)          | Отображается после имени игроков текущей команды  |
+ * |       |                          | Friendly Flags      | Byte                 | Битовая маска:                                    |
+ * |       |                          |                     |                      | 0x01 - разрешён friendly fire                     |
+ * |       |                          |                     |                      | 0x02 - могут видеть невидимок своей команды       |
+ * |       |                          | Name Tag Visibility | String (32)          | фиксированные значения:                           |
+ * |       |                          |                     |                      | - always                                          |
+ * |       |                          |                     |                      | - hideForOtherTeams                               |
+ * |       |                          |                     |                      | - hideForOwnTeam                                  |
+ * |       |                          |                     |                      | - never                                           |
+ * |       |                          | Collision Rule      | String (32)          | фиксированные значения:                           |
+ * |       |                          |                     |                      | - always                                          |
+ * |       |                          |                     |                      | - pushOtherTeams                                  |
+ * |       |                          |                     |                      | - pushOwnTeam                                     |
+ * |       |                          |                     |                      | - never                                           |
+ * |       |                          | Color               | Byte                 | For colors, the same Chat colors (0-15).          |
+ * |       |                          |                     |                      | -1 indicates RESET/no color.                      |
+ * |       |                          | Entity Count        | VarInt               | Количество элементов в поле "Entities"            |
+ * |       |                          | Entities            | Array of String (40) | Уникальные идентификаторы участников команды.     |
+ * |       |                          |                     |                      | Для Игроков - это Имена                           |
+ * |       |                          |                     |                      | Для любых других сущностей - это UUID             |
+ * | 1     | remove team              | -                   | -                    | удаление текущей команды                          |
+ * | 2     | update team info         | Team Display Name   | String (32)          |                                                   |
+ * |       |                          | Team Prefix         | String (16)          | (см. выше)                                        |
+ * |       |                          | Team Suffix         | String (16)          | (см. выше)                                        |
+ * |       |                          | Friendly Flags      | Byte                 | (см. выше)                                        |
+ * |       |                          | Name Tag Visibility | String (32)          | (см. выше)                                        |
+ * |       |                          | Collision Rule      | String (32)          | (см. выше)                                        |
+ * |       |                          | Color               | Byte                 | (см. выше)                                        |
+ * | 3     | add players to team      | Entity Count        | VarInt               | (см. выше)                                        |
+ * |       |                          | Entities            | Array of String (40) | (см. выше)                                        |
+ * | 4     | remove players from team | Entity Count        | VarInt               | (см. выше)                                        |
+ * |       |                          | Entities            | Array of String (40) | (см. выше)                                        |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Teams" target="_top">Teams</a>
+ */
+@Data
+public class TeamsPacket implements ServerSidePacket {
+
+	private final List<String> members = new ArrayList<>();
+
+	private String name;
+	private TeamsMode mode;
+
+	private String displayName;
+	private String prefix;
+	private String suffix;
+	private TeamsNameTagVisibility nameTagVisibility;
+	private TeamsCollisionRule collisionRule;
+	private int color;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeString(this.name);
+		netByteBuf.writeByte(this.mode.getCode());
+
+		switch (this.mode) {
+			case CREATE:
+				netByteBuf.writeString(this.displayName);
+				netByteBuf.writeString(this.prefix);
+				netByteBuf.writeString(this.suffix);
+				netByteBuf.writeByte(0); // Friendly Flags
+				netByteBuf.writeString(this.nameTagVisibility.getCode());
+				netByteBuf.writeString(this.collisionRule.getCode());
+				netByteBuf.writeByte(this.color);
+				netByteBuf.writeVarInt(this.members.size());
+				this.members.forEach(netByteBuf::writeString);
+				break;
+			case UPDATE:
+				netByteBuf.writeString(this.displayName);
+				netByteBuf.writeString(this.prefix);
+				netByteBuf.writeString(this.suffix);
+				netByteBuf.writeByte(0); // Friendly Flags
+				netByteBuf.writeString(this.nameTagVisibility.getCode());
+				netByteBuf.writeString(this.collisionRule.getCode());
+				netByteBuf.writeByte(this.color);
+				break;
+			case ADD_MEMBER:
+			case REMOVE_MEMBER:
+				netByteBuf.writeVarInt(this.members.size());
+				this.members.forEach(netByteBuf::writeString);
+				break;
+			case REMOVE:
+			default:
+				break;
+		}
+	}
+}

protocol/src/main/java/mc/protocol/utils/EntityActionAction.java

@@ -1,33 +0,0 @@
-package mc.protocol.utils;
-
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-
-import javax.annotation.Nullable;
-
-@RequiredArgsConstructor
-public enum EntityActionAction {
-	START_SNEAKING(0),
-	STOP_SNEAKING(1),
-	LEAVE_BED(2),
-	START_SPRINTING(3),
-	STOP_SPRINTING(4),
-	START_JUMP_WITH_HORSE(5),
-	STOP_JUMP_WITH_HORSE(6),
-	OPEN_HORSE_INVENTORY(7),
-	START_FLYING_WITH_ELYTRA(8);
-
-	@Nullable
-	public static EntityActionAction valueOfCode(int code) {
-		for (EntityActionAction action : EntityActionAction.values()) {
-			if (action.code == code) {
-				return action;
-			}
-		}
-
-		return null;
-	}
-
-	@Getter
-	private final int code;
-}

protocol/src/main/java/mc/protocol/utils/ScoreboardObjectiveMode.java

@@ -0,0 +1,14 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+public enum ScoreboardObjectiveMode {
+	CREATE(0),
+	REMOVE(1),
+	UPDATE(2);
+
+	@Getter
+	private final int code;
+}

protocol/src/main/java/mc/protocol/utils/ScoreboardObjectiveType.java

@@ -0,0 +1,6 @@
+package mc.protocol.utils;
+
+public enum ScoreboardObjectiveType {
+	INTEGER,
+	HEARTS
+}

protocol/src/main/java/mc/protocol/utils/ScoreboardPosition.java

@@ -0,0 +1,10 @@
+package mc.protocol.utils;
+
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+public class ScoreboardPosition {
+	public final int LIST = 0;
+	public final int SIDEBAR = 1;
+	public final int BELOW_NAME = 2;
+}

protocol/src/main/java/mc/protocol/utils/ScoreboardUpdateScoreAction.java

@@ -0,0 +1,13 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+public enum ScoreboardUpdateScoreAction {
+	CREATE_OR_UPDATE(0),
+	REMOVE(1);
+
+	@Getter
+	private final int code;
+}

protocol/src/main/java/mc/protocol/utils/TeamsCollisionRule.java

@@ -0,0 +1,15 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+public enum TeamsCollisionRule {
+	ALWAYS("always"),
+	PUSH_OTHER_TEAMS("pushOtherTeams"),
+	PUSH_OWN_TEAM("pushOwnTeam"),
+	NEVER("never");
+
+	@Getter
+	private final String code;
+}

protocol/src/main/java/mc/protocol/utils/TeamsMode.java

@@ -0,0 +1,16 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+public enum TeamsMode {
+	CREATE(0),
+	REMOVE(1),
+	UPDATE(2),
+	ADD_MEMBER(3),
+	REMOVE_MEMBER(4);
+
+	@Getter
+	private final int code;
+}

protocol/src/main/java/mc/protocol/utils/TeamsNameTagVisibility.java

@@ -0,0 +1,15 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+public enum TeamsNameTagVisibility {
+	ALWAYS("always"),
+	HIDE_FOR_OTHER_TEAMS("hideForOtherTeams"),
+	HIDE_FOR_OWN_TEAM("hideForOwnTeam"),
+	NEVER("never");
+
+	@Getter
+	private final String code;
+}

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

@@ -2,8 +2,7 @@ package mc.server;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import mc.protocol.ProtocolConstant;
-import mc.protocol.State;
+import mc.protocol.*;
 import mc.protocol.api.ConnectionContext;
 import mc.protocol.model.Location;
 import mc.protocol.model.Look;
@@ -14,9 +13,7 @@ import mc.protocol.packets.client.LoginStartPacket;
 import mc.protocol.packets.client.StatusServerRequestPacket;
 import mc.protocol.packets.server.*;
 import mc.protocol.serializer.TextSerializer;
-import mc.protocol.utils.Difficulty;
-import mc.protocol.utils.GameMode;
-import mc.protocol.utils.LevelType;
+import mc.protocol.utils.*;
 import mc.server.config.Config;
 import org.apache.commons.io.IOUtils;
 
@@ -27,7 +24,6 @@ import java.util.Base64;
 import java.util.Collections;
 import java.util.Random;
 import java.util.UUID;
-import java.util.concurrent.TimeUnit;
 
 @Slf4j
 @RequiredArgsConstructor
@@ -69,25 +65,28 @@ public class PacketHandler {
 		context.sendNow(response);
 	}
 
-	@SuppressWarnings("java:S2189")
 	public void onLoginStart(ConnectionContext context, LoginStartPacket loginStartPacket) {
+		UUID playerUuid = UUID.randomUUID();
+		int playerEid = random.nextInt();
+		String playerName = loginStartPacket.getName();
+
 		var loginSuccessPacket = new LoginSuccessPacket();
-		loginSuccessPacket.setUuid(UUID.randomUUID());
-		loginSuccessPacket.setName(loginStartPacket.getName());
+		loginSuccessPacket.setUuid(playerUuid);
+		loginSuccessPacket.setName(playerName);
 
 		context.sendNow(loginSuccessPacket);
 		context.setState(State.PLAY);
 
 		var joinGamePacket = new JoinGamePacket();
-		joinGamePacket.setEntityId(random.nextInt());
-		joinGamePacket.setGameMode(GameMode.SURVIVAL);
+		joinGamePacket.setEntityId(playerEid);
+		joinGamePacket.setGameMode(GameMode.SPECTATOR);
 		joinGamePacket.setDimension(0/*Overworld*/);
 		joinGamePacket.setDifficulty(Difficulty.PEACEFUL);
 		joinGamePacket.setLevelType(LevelType.FLAT);
 
 		context.send(joinGamePacket);
 
-		Location spawnLocation = new Location(7d, 130d, 7d);
+		Location spawnLocation = new Location(0d, 63d, 0d);
 
 		var spawnPositionPacket = new SpawnPositionPacket();
 		spawnPositionPacket.setSpawn(spawnLocation);
@@ -126,29 +125,33 @@ public class PacketHandler {
 
 		context.flushSending();
 
-		// -- Эксперименты -- //
+		// --- Эксперименты --- //
 
-		var setExperiencePacket = new SetExperiencePacket();
-		setExperiencePacket.setExperienceBar(0f);
-		setExperiencePacket.setLevel(0);
-		setExperiencePacket.setTotalExperience(100);
+		String scoreboardName = "Score::List";
 
-		while (true) {
-			context.sendNow(setExperiencePacket);
+		var scoreboardObjectivePacket = new ScoreboardObjectivePacket();
+		scoreboardObjectivePacket.setObjectiveName(scoreboardName);
+		scoreboardObjectivePacket.setMode(ScoreboardObjectiveMode.CREATE);
+		scoreboardObjectivePacket.setObjectiveValue(scoreboardName);
+		scoreboardObjectivePacket.setType(ScoreboardObjectiveType.INTEGER);
 
-			setExperiencePacket.setExperienceBar(setExperiencePacket.getExperienceBar() + 0.01f);
-			setExperiencePacket.setLevel(setExperiencePacket.getLevel() + 1);
-			if (setExperiencePacket.getExperienceBar() > 1.0f) {
-				setExperiencePacket.setExperienceBar(0f);
-				setExperiencePacket.setLevel(0);
-			}
+		context.send(scoreboardObjectivePacket);
 
-			try {
-				TimeUnit.MILLISECONDS.sleep(10);
-			} catch (InterruptedException e) {
-				break;
-			}
-		}
+		var scoreboardDisplayPacket = new ScoreboardDisplayPacket();
+		scoreboardDisplayPacket.setPosition(ScoreboardPosition.SIDEBAR);
+		scoreboardDisplayPacket.setScoreName(scoreboardName);
+
+		context.send(scoreboardDisplayPacket);
+
+		var scoreboardUpdateScorePacket = new ScoreboardUpdateScorePacket();
+		scoreboardUpdateScorePacket.setEntityName(playerName);
+		scoreboardUpdateScorePacket.setAction(ScoreboardUpdateScoreAction.CREATE_OR_UPDATE);
+		scoreboardUpdateScorePacket.setObjective(scoreboardName);
+		scoreboardUpdateScorePacket.setValue(100500);
+
+		context.send(scoreboardUpdateScorePacket);
+
+		context.flushSending();
 	}
 
 	private static String faviconToBase64(Path iconPath) {