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TeamsPacket

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This commit is contained in:
DmitriyMX
2021-05-08 04:48:28 +03:00
parent fda80d9f9d
commit 9ccb9a6221
7 changed files with 194 additions and 9 deletions
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1
protocol/src/main/java/mc/protocol/State.java
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@@ -57,6 +57,7 @@ public enum State {
PingPacket.class, 0x1F,
JoinGamePacket.class, 0x23,
ScoreboardDisplayPacket.class, 0x3B,
TeamsPacket.class, 0x44,
SpawnPositionPacket.class, 0x46,
ChunkDataPacket.class, 0x20,
PlayerAbilitiesPacket.class,0x2C,

5
protocol/src/main/java/mc/protocol/io/NetByteBuf.java
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@@ -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) {

119
protocol/src/main/java/mc/protocol/packets/server/TeamsPacket.java Normal file
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@@ -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;
}
}
}

15
protocol/src/main/java/mc/protocol/utils/TeamsCollisionRule.java Normal file
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@@ -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;
}

16
protocol/src/main/java/mc/protocol/utils/TeamsMode.java Normal file
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@@ -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;
}

15
protocol/src/main/java/mc/protocol/utils/TeamsNameTagVisibility.java Normal file
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@@ -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;
}

32
server/src/main/java/mc/server/PacketHandler.java
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@@ -13,10 +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.ScoreboardPosition;
import mc.protocol.utils.*;
import mc.server.config.Config;
import org.apache.commons.io.IOUtils;
@@ -69,15 +66,19 @@ public class PacketHandler {
}
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.setEntityId(playerEid);
joinGamePacket.setGameMode(GameMode.SPECTATOR);
joinGamePacket.setDimension(0/*Overworld*/);
joinGamePacket.setDifficulty(Difficulty.PEACEFUL);
@@ -126,11 +127,24 @@ public class PacketHandler {
// --- Эксперименты --- //
TeamsPacket teamsPacket = new TeamsPacket();
teamsPacket.setName("Score::List");
teamsPacket.setMode(TeamsMode.CREATE);
teamsPacket.setDisplayName(teamsPacket.getName());
teamsPacket.setNameTagVisibility(TeamsNameTagVisibility.NEVER);
teamsPacket.setCollisionRule(TeamsCollisionRule.NEVER);
teamsPacket.setColor(-1/*no color*/);
teamsPacket.getMembers().add(playerName);
context.send(teamsPacket);
ScoreboardDisplayPacket scoreboardDisplayPacket = new ScoreboardDisplayPacket();
scoreboardDisplayPacket.setPosition(ScoreboardPosition.LIST);
scoreboardDisplayPacket.setName("Score::List");
scoreboardDisplayPacket.setName(teamsPacket.getName());
context.sendNow(scoreboardDisplayPacket);
context.send(scoreboardDisplayPacket);
context.flushSending();
}
private static String faviconToBase64(Path iconPath) {