Merge branch 'main' of github.com:Nan1t/NanoLimbo

README.md

@@ -22,6 +22,7 @@ The general features:
 
 Symbol `X` means all minor versions.
 
+- [x] 1.7.X
 - [x] 1.8.X
 - [x] 1.9.X
 - [x] 1.10.X
@@ -34,6 +35,7 @@ Symbol `X` means all minor versions.
 - [x] 1.17.X
 - [x] 1.18.X
 - [x] 1.19
+- [x] 1.19.1
 
 The server **doesn't** support snapshots.
 

build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id 'java'
-    id 'com.github.johnrengelman.shadow' version '7.0.0'
+    id 'com.github.johnrengelman.shadow' version '7.1.2'
 }
 
 group 'ru.nanit'
@@ -20,12 +20,12 @@ repositories {
 }
 
 dependencies {
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.0'
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.9.1'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.0'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.9.1'
 
     implementation 'org.spongepowered:configurate-yaml:4.1.2'
-    implementation 'io.netty:netty-all:4.1.77.Final'
+    implementation 'io.netty:netty-all:4.1.85.Final'
-    implementation 'net.kyori:adventure-nbt:4.10.1'
+    implementation 'net.kyori:adventure-nbt:4.12.0'
     implementation 'com.grack:nanojson:1.7'
 }
 
@@ -41,4 +41,4 @@ shadowJar {
 
 test {
     useJUnitPlatform()
-}
+}

src/main/java/ru/nanit/limbo/connection/ClientConnection.java

@@ -46,6 +46,7 @@ import java.security.InvalidKeyException;
 import java.security.MessageDigest;
 import java.util.UUID;
 import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.TimeUnit;
 
 public class ClientConnection extends ChannelInboundHandlerAdapter {
 
@@ -123,38 +124,48 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
             return;
         }
 
-        writePacket(PacketSnapshots.PACKET_LOGIN_SUCCESS);
+        sendPacket(PacketSnapshots.PACKET_LOGIN_SUCCESS);
         updateState(State.PLAY);
-
         server.getConnections().addConnection(this);
 
-        writePacket(PacketSnapshots.PACKET_JOIN_GAME);
+        Runnable sendPlayPackets = () -> {
-        writePacket(PacketSnapshots.PACKET_PLAYER_ABILITIES);
+            writePacket(PacketSnapshots.PACKET_JOIN_GAME);
-        writePacket(PacketSnapshots.PACKET_PLAYER_POS);
+            writePacket(PacketSnapshots.PACKET_PLAYER_ABILITIES);
+            writePacket(PacketSnapshots.PACKET_PLAYER_POS);
 
-        if (server.getConfig().isUsePlayerList() || clientVersion.equals(Version.V1_16_4))
+            if (clientVersion.moreOrEqual(Version.V1_19_3))
-            writePacket(PacketSnapshots.PACKET_PLAYER_INFO);
+                writePacket(PacketSnapshots.PACKET_SPAWN_POSITION);
 
-        if (clientVersion.moreOrEqual(Version.V1_13)) {
+            if (server.getConfig().isUsePlayerList() || clientVersion.equals(Version.V1_16_4))
-            writePacket(PacketSnapshots.PACKET_DECLARE_COMMANDS);
+                writePacket(PacketSnapshots.PACKET_PLAYER_INFO);
 
-            if (PacketSnapshots.PACKET_PLUGIN_MESSAGE != null)
+            if (clientVersion.moreOrEqual(Version.V1_13)) {
-                writePacket(PacketSnapshots.PACKET_PLUGIN_MESSAGE);
+                writePacket(PacketSnapshots.PACKET_DECLARE_COMMANDS);
+
+                if (PacketSnapshots.PACKET_PLUGIN_MESSAGE != null)
+                    writePacket(PacketSnapshots.PACKET_PLUGIN_MESSAGE);
+            }
+
+            if (PacketSnapshots.PACKET_BOSS_BAR != null && clientVersion.moreOrEqual(Version.V1_9))
+                writePacket(PacketSnapshots.PACKET_BOSS_BAR);
+
+            if (PacketSnapshots.PACKET_JOIN_MESSAGE != null)
+                writePacket(PacketSnapshots.PACKET_JOIN_MESSAGE);
+
+            if (PacketSnapshots.PACKET_TITLE_TITLE != null && clientVersion.moreOrEqual(Version.V1_8))
+                writeTitle();
+
+            if (PacketSnapshots.PACKET_HEADER_AND_FOOTER != null && clientVersion.moreOrEqual(Version.V1_8))
+                writePacket(PacketSnapshots.PACKET_HEADER_AND_FOOTER);
+
+            sendKeepAlive();
+        };
+
+        if (clientVersion.lessOrEqual(Version.V1_7_6)) {
+            this.channel.eventLoop().schedule(sendPlayPackets, 100, TimeUnit.MILLISECONDS);
+        } else {
+            sendPlayPackets.run();
         }
-
-        if (PacketSnapshots.PACKET_BOSS_BAR != null && clientVersion.moreOrEqual(Version.V1_9))
-            writePacket(PacketSnapshots.PACKET_BOSS_BAR);
-
-        if (PacketSnapshots.PACKET_JOIN_MESSAGE != null)
-            writePacket(PacketSnapshots.PACKET_JOIN_MESSAGE);
-
-        if (PacketSnapshots.PACKET_TITLE_TITLE != null)
-            writeTitle();
-
-        if (PacketSnapshots.PACKET_HEADER_AND_FOOTER != null)
-            writePacket(PacketSnapshots.PACKET_HEADER_AND_FOOTER);
-
-        sendKeepAlive();
     }
 
     public void disconnectLogin(String reason) {

src/main/java/ru/nanit/limbo/connection/PacketSnapshots.java

@@ -33,6 +33,7 @@ public final class PacketSnapshots {
 
     public static PacketSnapshot PACKET_LOGIN_SUCCESS;
     public static PacketSnapshot PACKET_JOIN_GAME;
+    public static PacketSnapshot PACKET_SPAWN_POSITION;
     public static PacketSnapshot PACKET_PLUGIN_MESSAGE;
     public static PacketSnapshot PACKET_PLAYER_ABILITIES;
     public static PacketSnapshot PACKET_PLAYER_INFO;
@@ -99,8 +100,14 @@ public final class PacketSnapshots {
         info.setGameMode(server.getConfig().getGameMode());
         info.setUuid(uuid);
 
+        PacketSpawnPosition packetSpawnPosition = new PacketSpawnPosition();
+        packetSpawnPosition.setX((long) server.getConfig().getSpawnPosition().getX());
+        packetSpawnPosition.setY((long) server.getConfig().getSpawnPosition().getY());
+        packetSpawnPosition.setZ((long) server.getConfig().getSpawnPosition().getZ());
+
         PACKET_LOGIN_SUCCESS = PacketSnapshot.of(loginSuccess);
         PACKET_JOIN_GAME = PacketSnapshot.of(joinGame);
+        PACKET_SPAWN_POSITION = PacketSnapshot.of(packetSpawnPosition);
         PACKET_PLAYER_ABILITIES = PacketSnapshot.of(playerAbilities);
         PACKET_PLAYER_POS = PacketSnapshot.of(positionAndLook);
         PACKET_PLAYER_INFO = PacketSnapshot.of(info);

src/main/java/ru/nanit/limbo/protocol/ByteMessage.java

@@ -34,6 +34,9 @@ import java.nio.channels.GatheringByteChannel;
 import java.nio.channels.ScatteringByteChannel;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.BitSet;
+import java.util.EnumSet;
 import java.util.UUID;
 
 public class ByteMessage extends ByteBuf {
@@ -190,6 +193,24 @@ public class ByteMessage extends ByteBuf {
         }
     }
 
+    public <E extends Enum<E>> void writeEnumSet(EnumSet<E> enumset, Class<E> oclass) {
+        E[] enums = oclass.getEnumConstants();
+        BitSet bits = new BitSet(enums.length);
+
+        for (int i = 0; i < enums.length; ++i) {
+            bits.set(i, enumset.contains(enums[i]));
+        }
+
+        writeFixedBitSet(bits, enums.length, buf);
+    }
+
+    private static void writeFixedBitSet(BitSet bits, int size, ByteBuf buf) {
+        if (bits.length() > size) {
+            throw new StackOverflowError("BitSet too large (expected " + size + " got " + bits.size() + ")");
+        }
+        buf.writeBytes(Arrays.copyOf(bits.toByteArray(), (size + 8) >> 3));
+    }
+
     /* Delegated methods */
 
     @Override

src/main/java/ru/nanit/limbo/protocol/packets/login/PacketLoginSuccess.java

@@ -40,8 +40,10 @@ public class PacketLoginSuccess implements PacketOut {
     public void encode(ByteMessage msg, Version version) {
         if (version.moreOrEqual(Version.V1_16)) {
             msg.writeUuid(uuid);
-        } else {
+        } else if (version.moreOrEqual(Version.V1_7_6)) {
             msg.writeString(uuid.toString());
+        } else {
+            msg.writeString(uuid.toString().replace("-", ""));
         }
         msg.writeString(username);
         if (version.moreOrEqual(Version.V1_19)) {

src/main/java/ru/nanit/limbo/protocol/packets/play/PacketChatMessage.java

@@ -46,11 +46,9 @@ public class PacketChatMessage implements PacketOut {
         msg.writeString(jsonData);
         if (version.moreOrEqual(Version.V1_19_1)) {
             msg.writeBoolean(position.index == PositionLegacy.ACTION_BAR.index);
-        }
+        } else if (version.moreOrEqual(Version.V1_19)) {
-        else if (version.moreOrEqual(Version.V1_19)) {
             msg.writeVarInt(position.index);
-        }
+        } else if (version.moreOrEqual(Version.V1_8)) {
-        else {
             msg.writeByte(position.index);
         }
 

src/main/java/ru/nanit/limbo/protocol/packets/play/PacketJoinGame.java

@@ -99,6 +99,14 @@ public class PacketJoinGame implements PacketOut {
     public void encode(ByteMessage msg, Version version) {
         msg.writeInt(entityId);
 
+        if (version.fromTo(Version.V1_7_2, Version.V1_7_6)) {
+            msg.writeByte(gameMode == 3 ? 1 : gameMode);
+            msg.writeByte(dimensionRegistry.getDefaultDimension_1_16().getId());
+            msg.writeByte(0); // Difficulty
+            msg.writeByte(maxPlayers);
+            msg.writeString("flat"); // Level type
+        }
+
         if (version.fromTo(Version.V1_8, Version.V1_9)) {
             msg.writeByte(gameMode);
             msg.writeByte(dimensionRegistry.getDefaultDimension_1_16().getId());

src/main/java/ru/nanit/limbo/protocol/packets/play/PacketKeepAlive.java

@@ -37,8 +37,10 @@ public class PacketKeepAlive implements Packet {
     public void encode(ByteMessage msg, Version version) {
         if (version.moreOrEqual(Version.V1_12_2)) {
             msg.writeLong(id);
-        } else {
+        } else if (version.moreOrEqual(Version.V1_8)) {
             msg.writeVarInt((int) id);
+        } else {
+            msg.writeInt((int) id);
         }
     }
 
@@ -46,8 +48,10 @@ public class PacketKeepAlive implements Packet {
     public void decode(ByteMessage msg, Version version) {
         if (version.moreOrEqual(Version.V1_12_2)) {
             this.id = msg.readLong();
-        } else {
+        } else if (version.moreOrEqual(Version.V1_8)) {
             this.id = msg.readVarInt();
+        } else {
+            this.id = msg.readInt();
         }
     }
 

src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerInfo.java

@@ -21,6 +21,7 @@ import ru.nanit.limbo.protocol.ByteMessage;
 import ru.nanit.limbo.protocol.PacketOut;
 import ru.nanit.limbo.protocol.registry.Version;
 
+import java.util.EnumSet;
 import java.util.UUID;
 
 /**
@@ -46,17 +47,49 @@ public class PacketPlayerInfo implements PacketOut {
 
     @Override
     public void encode(ByteMessage msg, Version version) {
-        msg.writeVarInt(0); // Add player action
+        if (version.less(Version.V1_8)) {
-        msg.writeVarInt(1);
+            msg.writeString(username);
-        msg.writeUuid(uuid);
+            msg.writeBoolean(true); // Is online
-        msg.writeString(username);
+            msg.writeShort(0);
-        msg.writeVarInt(0);
+        } else {
-        msg.writeVarInt(gameMode);
+            if (version.moreOrEqual(Version.V1_19_3)) {
-        msg.writeVarInt(60);
+                EnumSet<Action> actions = EnumSet.noneOf(Action.class);
-        msg.writeBoolean(false);
+                actions.add(Action.ADD_PLAYER);
-        if (version.moreOrEqual(Version.V1_19)) {
+                actions.add(Action.UPDATE_LISTED);
+                actions.add(Action.UPDATE_GAMEMODE);
+                msg.writeEnumSet(actions, Action.class);
+
+                msg.writeVarInt(1); // Array length (1 element)
+                msg.writeUuid(uuid); // UUID
+                msg.writeString(username); //Username
+                msg.writeVarInt(0); //Properties (0 is empty)
+
+                msg.writeBoolean(true); //Update listed
+                msg.writeVarInt(gameMode); //Gamemode
+                return;
+            }
+            
+            msg.writeVarInt(0); // Add player action
+            msg.writeVarInt(1);
+            msg.writeUuid(uuid);
+            msg.writeString(username);
+            msg.writeVarInt(0);
+            msg.writeVarInt(gameMode);
+            msg.writeVarInt(60);
             msg.writeBoolean(false);
+            
+            if (version.moreOrEqual(Version.V1_19)) {
+                msg.writeBoolean(false);
+            }
         }
     }
 
+    public static enum Action {
+        ADD_PLAYER,
+        INITIALIZE_CHAT,
+        UPDATE_GAMEMODE,
+        UPDATE_LISTED,
+        UPDATE_LATENCY,
+        UPDATE_DISPLAY_NAME;
+    }
 }

src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerPositionAndLook.java

@@ -62,15 +62,18 @@ public class PacketPlayerPositionAndLook implements PacketOut {
     @Override
     public void encode(ByteMessage msg, Version version) {
         msg.writeDouble(x);
-        msg.writeDouble(y);
+        msg.writeDouble(y + (version.less(Version.V1_8) ? 1.62F : 0));
         msg.writeDouble(z);
         msg.writeFloat(yaw);
         msg.writeFloat(pitch);
 
-        if (version.less(Version.V1_9)) {
+        if (version.moreOrEqual(Version.V1_8)) {
-            msg.writeBoolean(true); // On ground
-        } else {
             msg.writeByte(flags);
+        } else {
+            msg.writeBoolean(true);
+        }
+
+        if (version.moreOrEqual(Version.V1_9)) {
             msg.writeVarInt(teleportId);
         }
 

src/main/java/ru/nanit/limbo/protocol/packets/play/PacketSpawnPosition.java

@@ -0,0 +1,34 @@
+package ru.nanit.limbo.protocol.packets.play;
+
+import ru.nanit.limbo.protocol.ByteMessage;
+import ru.nanit.limbo.protocol.PacketOut;
+import ru.nanit.limbo.protocol.registry.Version;
+
+public class PacketSpawnPosition implements PacketOut  {
+
+    private long x;
+    private long y;
+    private long z;
+
+    public void setX(long x) {
+        this.x = x;
+    }
+
+    public void setY(long y) {
+        this.y = y;
+    }
+
+    public void setZ(long z) {
+        this.z = z;
+    }
+
+    @Override
+    public void encode(ByteMessage msg, Version version) {
+        msg.writeLong(encodePosition(x, y ,z));
+        msg.writeFloat(0);
+    }
+
+    private static long encodePosition(long x, long y, long z) {
+        return ((x & 0x3FFFFFF) << 38) | ((z & 0x3FFFFFF) << 12) | (y & 0xFFF);
+    }
+}

src/main/java/ru/nanit/limbo/protocol/registry/State.java

@@ -77,7 +77,7 @@ public enum State {
     PLAY(3) {
         {
             serverBound.register(PacketKeepAlive::new,
-                    map(0x00, V1_8, V1_8),
+                    map(0x00, V1_7_2, V1_8),
                     map(0x0B, V1_9, V1_11_1),
                     map(0x0C, V1_12, V1_12),
                     map(0x0B, V1_12_1, V1_12_2),
@@ -86,7 +86,8 @@ public enum State {
                     map(0x10, V1_16, V1_16_4),
                     map(0x0F, V1_17, V1_18_2),
                     map(0x11, V1_19, V1_19),
-                    map(0x12, V1_19_1, V1_19_1)
+                    map(0x12, V1_19_1, V1_19_1),
+                    map(0x11, V1_19_3, V1_19_3)
             );
 
             clientBound.register(PacketDeclareCommands::new,
@@ -95,10 +96,11 @@ public enum State {
                     map(0x11, V1_16, V1_16_1),
                     map(0x10, V1_16_2, V1_16_4),
                     map(0x12, V1_17, V1_18_2),
-                    map(0x0F, V1_19, V1_19_1)
+                    map(0x0F, V1_19, V1_19_1),
+                    map(0x0E, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketJoinGame::new,
-                    map(0x01, V1_8, V1_8),
+                    map(0x01, V1_7_2, V1_8),
                     map(0x23, V1_9, V1_12_2),
                     map(0x25, V1_13, V1_14_4),
                     map(0x26, V1_15, V1_15_2),
@@ -106,7 +108,8 @@ public enum State {
                     map(0x24, V1_16_2, V1_16_4),
                     map(0x26, V1_17, V1_18_2),
                     map(0x23, V1_19, V1_19),
-                    map(0x25, V1_19_1, V1_19_1)
+                    map(0x25, V1_19_1, V1_19_1),
+                    map(0x24, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketPluginMessage::new,
                     map(0x19, V1_13, V1_13_2),
@@ -116,10 +119,11 @@ public enum State {
                     map(0x17, V1_16_2, V1_16_4),
                     map(0x18, V1_17, V1_18_2),
                     map(0x15, V1_19, V1_19),
-                    map(0x16, V1_19_1, V1_19_1)
+                    map(0x16, V1_19_1, V1_19_1),
+                    map(0x15, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketPlayerAbilities::new,
-                    map(0x39, V1_8, V1_8),
+                    map(0x39, V1_7_2, V1_8),
                     map(0x2B, V1_9, V1_12),
                     map(0x2C, V1_12_1, V1_12_2),
                     map(0x2E, V1_13, V1_13_2),
@@ -129,10 +133,11 @@ public enum State {
                     map(0x30, V1_16_2, V1_16_4),
                     map(0x32, V1_17, V1_18_2),
                     map(0x2F, V1_19, V1_19),
-                    map(0x31, V1_19_1, V1_19_1)
+                    map(0x31, V1_19_1, V1_19_1),
+                    map(0x30, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketPlayerPositionAndLook::new,
-                    map(0x08, V1_8, V1_8),
+                    map(0x08, V1_7_2, V1_8),
                     map(0x2E, V1_9, V1_12),
                     map(0x2F, V1_12_1, V1_12_2),
                     map(0x32, V1_13, V1_13_2),
@@ -142,10 +147,11 @@ public enum State {
                     map(0x34, V1_16_2, V1_16_4),
                     map(0x38, V1_17, V1_18_2),
                     map(0x36, V1_19, V1_19),
-                    map(0x39, V1_19_1, V1_19_1)
+                    map(0x39, V1_19_1, V1_19_1),
+                    map(0x38, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketKeepAlive::new,
-                    map(0x00, V1_8, V1_8),
+                    map(0x00, V1_7_2, V1_8),
                     map(0x1F, V1_9, V1_12_2),
                     map(0x21, V1_13, V1_13_2),
                     map(0x20, V1_14, V1_14_4),
@@ -154,27 +160,29 @@ public enum State {
                     map(0x1F, V1_16_2, V1_16_4),
                     map(0x21, V1_17, V1_18_2),
                     map(0x1E, V1_19, V1_19),
-                    map(0x20, V1_19_1, V1_19_1)
+                    map(0x20, V1_19_1, V1_19_1),
+                    map(0x1F, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketChatMessage::new,
-                    map(0x02, V1_8, V1_8),
+                    map(0x02, V1_7_2, V1_8),
                     map(0x0F, V1_9, V1_12_2),
                     map(0x0E, V1_13, V1_14_4),
                     map(0x0F, V1_15, V1_15_2),
                     map(0x0E, V1_16, V1_16_4),
                     map(0x0F, V1_17, V1_18_2),
                     map(0x5F, V1_19, V1_19),
-                    map(0x62, V1_19_1, V1_19_1)
+                    map(0x62, V1_19_1, V1_19_1),
+                    map(0x60, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketBossBar::new,
                     map(0x0C, V1_9, V1_14_4),
                     map(0x0D, V1_15, V1_15_2),
                     map(0x0C, V1_16, V1_16_4),
                     map(0x0D, V1_17, V1_18_2),
-                    map(0x0A, V1_19, V1_19_1)
+                    map(0x0A, V1_19, V1_19_3)
             );
             clientBound.register(PacketPlayerInfo::new,
-                    map(0x38, V1_8, V1_8),
+                    map(0x38, V1_7_2, V1_8),
                     map(0x2D, V1_9, V1_12),
                     map(0x2E, V1_12_1, V1_12_2),
                     map(0x30, V1_13, V1_13_2),
@@ -184,7 +192,8 @@ public enum State {
                     map(0x32, V1_16_2, V1_16_4),
                     map(0x36, V1_17, V1_18_2),
                     map(0x34, V1_19, V1_19),
-                    map(0x37, V1_19_1, V1_19_1)
+                    map(0x37, V1_19_1, V1_19_1),
+                    map(0x36, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketTitleLegacy::new,
                     map(0x45, V1_8, V1_11_1),
@@ -198,17 +207,20 @@ public enum State {
             clientBound.register(PacketTitleSetTitle::new,
                     map(0x59, V1_17, V1_17_1),
                     map(0x5A, V1_18, V1_19),
-                    map(0x5D, V1_19_1, V1_19_1)
+                    map(0x5D, V1_19_1, V1_19_1),
+                    map(0x5B, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketTitleSetSubTitle::new,
                     map(0x57, V1_17, V1_17_1),
                     map(0x58, V1_18, V1_19),
-                    map(0x5B, V1_19_1, V1_19_1)
+                    map(0x5B, V1_19_1, V1_19_1),
+                    map(0x59, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketTitleTimes::new,
                     map(0x5A, V1_17, V1_17_1),
                     map(0x5B, V1_18, V1_19),
-                    map(0x5E, V1_19_1, V1_19_1)
+                    map(0x5E, V1_19_1, V1_19_1),
+                    map(0x5C, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketPlayerListHeader::new,
                     map(0x47, V1_8, V1_8),
@@ -223,7 +235,11 @@ public enum State {
                     map(0x5E, V1_17, V1_17_1),
                     map(0x5F, V1_18, V1_18_2),
                     map(0x60, V1_19, V1_19),
-                    map(0x63, V1_19_1, V1_19_1)
+                    map(0x63, V1_19_1, V1_19_1),
+                    map(0x61, V1_19_3, V1_19_3)
+            );
+            clientBound.register(PacketSpawnPosition::new,
+                    map(0x4C, V1_19_3, V1_19_3)
             );
         }
     };

src/main/java/ru/nanit/limbo/protocol/registry/Version.java

@@ -23,6 +23,10 @@ import java.util.Map;
 public enum Version {
 
     UNDEFINED(-1),
+    V1_7_2(4),
+    // 1.7.2-1.7.5 has same protocol numbers
+    V1_7_6(5),
+    // 1.7.6-1.7.10 has same protocol numbers
     V1_8(47),
     // 1.8-1.8.8 has same protocol numbers
     V1_9(107),
@@ -60,7 +64,8 @@ public enum Version {
     // 1.18.1 has same protocol number
     V1_18_2(758),
     V1_19(759),
-    V1_19_1(760);
+    V1_19_1(760),
+    V1_19_3(761);
 
     private static final Map<Integer, Version> VERSION_MAP;
     private static final Version MAX;
@@ -119,7 +124,7 @@ public enum Version {
     }
 
     public static Version getMin() {
-        return V1_8;
+        return V1_7_2;
     }
 
     public static Version getMax() {