diff --git a/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java b/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java index 3f86aced0..92326cc62 100644 --- a/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java +++ b/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java @@ -35,7 +35,7 @@ public enum ProtocolVersion { MINECRAFT_1_15(573, "1.15"), MINECRAFT_1_15_1(575, "1.15.1"), MINECRAFT_1_15_2(578, "1.15.2"), - MINECRAFT_1_16(721, "1.16"); + MINECRAFT_1_16(722, "1.16"); private final int protocol; private final String name; diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java index 7dc865355..07132bac0 100644 --- a/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java +++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java @@ -34,11 +34,9 @@ import io.netty.buffer.ByteBuf; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Collection; -import java.util.HashSet; import java.util.List; import java.util.Optional; import java.util.Queue; -import java.util.Set; import java.util.UUID; import net.kyori.text.TextComponent; import net.kyori.text.format.TextColor; @@ -336,58 +334,20 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler { // to perform entity ID rewrites, eliminating potential issues from rewriting packets and // improving compatibility with mods. player.getMinecraftConnection().delayedWrite(joinGame); - int tempDim = joinGame.getDimension() == 0 ? -1 : 0; // Since 1.16 this dynamic changed: - // The respawn packet has a keepMetadata flag which should - // be true for dimension switches, so by double switching - // we can keep the flow of the game - // There is a problem here though: By only sending one dimension - // in the registry we can't do that, so we need to run an *unclean* switch. - // NOTE! We can't just send a fake dimension in the registry either - // to get two dimensions, as modded games will break with this. - final DimensionRegistry dimensionRegistry = joinGame.getDimensionRegistry(); - DimensionInfo dimensionInfo = joinGame.getDimensionInfo(); // 1.16+ - // The doubleSwitch variable doubles as keepMetadata flag for an unclean switch as - // well as to indicate the second switch. - boolean doubleSwitch; - // This is not ONE if because this will all be null in < 1.16 + // We don't need to send two dimension swiches anymore! if (player.getProtocolVersion().compareTo(ProtocolVersion.MINECRAFT_1_16) < 0) { - if (dimensionRegistry.getWorldNames().size() > 1 - && dimensionRegistry.getDimensionRegistry().size() > 1) { - String tmpDimLevelName = null; - for (String s : dimensionRegistry.getWorldNames()) { - if (!s.equals(dimensionInfo.getDimensionLevelName())) { - tmpDimLevelName = s; - break; - } - } - String tmpDimIdentifier = null; - for (String s : dimensionRegistry.getDimensionRegistry().keySet()) { - if (!s.equals(dimensionInfo.getDimensionIdentifier())) { - tmpDimIdentifier = s; - break; - } - } - dimensionInfo = new DimensionInfo(tmpDimIdentifier, tmpDimLevelName, true, false); - doubleSwitch = true; - } else { - doubleSwitch = false; - // We should add a warning here. - } - } else { - doubleSwitch = true; - } - if (doubleSwitch) { + int tempDim = joinGame.getDimension() == 0 ? -1 : 0; player.getMinecraftConnection().delayedWrite( new Respawn(tempDim, joinGame.getPartialHashedSeed(), joinGame.getDifficulty(), joinGame.getGamemode(), joinGame.getLevelType(), - false, dimensionInfo)); + false, joinGame.getDimensionInfo())); } player.getMinecraftConnection().delayedWrite( new Respawn(joinGame.getDimension(), joinGame.getPartialHashedSeed(), joinGame.getDifficulty(), joinGame.getGamemode(), joinGame.getLevelType(), - doubleSwitch, joinGame.getDimensionInfo())); + false, joinGame.getDimensionInfo())); destination.setActiveDimensionRegistry(joinGame.getDimensionRegistry()); // 1.16 } diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionData.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionData.java new file mode 100644 index 000000000..9ecfebe15 --- /dev/null +++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionData.java @@ -0,0 +1,106 @@ +package com.velocitypowered.proxy.protocol; + +import net.kyori.nbt.CompoundTag; + +import javax.annotation.Nonnull; +import javax.annotation.Nullable; + +public class DimensionData { + private final @Nonnull String registryIdentifier; + private final boolean isNatural; + private final float ambientLight; + private final boolean isShrunk; + private final boolean isUltrawarm; + private final boolean hasCeiling; + private final boolean hasSkylight; + private final @Nullable Long fixedTime; + private final @Nullable Boolean hasEnderdragonFight; + + public DimensionData(@Nonnull String registryIdentifier, boolean isNatural, + float ambientLight, boolean isShrunk, boolean isUltrawarm, + boolean hasCeiling, boolean hasSkylight, + @Nullable Long fixedTime, @Nullable Boolean hasEnderdragonFight) { + this.registryIdentifier = registryIdentifier; + this.isNatural = isNatural; + this.ambientLight = ambientLight; + this.isShrunk = isShrunk; + this.isUltrawarm = isUltrawarm; + this.hasCeiling = hasCeiling; + this.hasSkylight = hasSkylight; + this.fixedTime = fixedTime; + this.hasEnderdragonFight = hasEnderdragonFight; + } + + public @Nonnull String getRegistryIdentifier() { + return registryIdentifier; + } + + public boolean isNatural() { + return isNatural; + } + + public float getAmbientLight() { + return ambientLight; + } + + public boolean isShrunk() { + return isShrunk; + } + + public boolean isUltrawarm() { + return isUltrawarm; + } + + public boolean isHasCeiling() { + return hasCeiling; + } + + public boolean isHasSkylight() { + return hasSkylight; + } + + public @Nullable Long getFixedTime() { + return fixedTime; + } + + public @Nullable Boolean getHasEnderdragonFight() { + return hasEnderdragonFight; + } + + public static DimensionData fromNBT(@Nonnull CompoundTag toRead) { + if (toRead == null){ + throw new IllegalArgumentException("CompoundTag cannot be null"); + } + String registryIdentifier = toRead.getString("key"); + CompoundTag values = toRead.getCompound("element"); + boolean isNatural = values.getBoolean("natural"); + float ambientLight = values.getFloat("ambient_light"); + boolean isShrunk = values.getBoolean("shrunk"); + boolean isUltrawarm = values.getBoolean("ultrawarm"); + boolean hasCeiling = values.getBoolean("has_ceiling"); + boolean hasSkylight = values.getBoolean("has_skylight"); + Long fixedTime = values.contains("fixed_time") ? values.getLong("fixed_time") : null; + Boolean hasEnderdragonFight = values.contains("has_enderdragon_fight") ? values.getBoolean("has_enderdragon_fight") : null; + return new DimensionData(registryIdentifier, isNatural, ambientLight, isShrunk, isUltrawarm, hasCeiling, hasSkylight, fixedTime, hasEnderdragonFight); + } + + public CompoundTag encode() { + CompoundTag ret = new CompoundTag(); + ret.putString("key", registryIdentifier); + CompoundTag values = new CompoundTag(); + values.putBoolean("natural", isNatural); + values.putFloat("ambient_light", ambientLight); + values.putBoolean("shrunk", isShrunk); + values.putBoolean("ultrawarm", isUltrawarm); + values.putBoolean("has_ceiling", hasCeiling); + values.putBoolean("has_skylight", hasSkylight); + if (fixedTime != null) { + values.putLong("fixed_time", fixedTime); + } + if (hasEnderdragonFight != null) { + values.putBoolean("has_enderdragon_fight", hasEnderdragonFight); + } + ret.put("element", values); + return ret; + } +} diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionInfo.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionInfo.java index 803f011a1..787c7a948 100644 --- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionInfo.java +++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionInfo.java @@ -1,35 +1,33 @@ package com.velocitypowered.proxy.protocol; -import com.velocitypowered.proxy.connection.MinecraftConnection; - import javax.annotation.Nonnull; public class DimensionInfo { private final @Nonnull String dimensionIdentifier; - private final @Nonnull String dimensionLevelName; + private final @Nonnull String levelName; private final boolean isFlat; private final boolean isDebugType; /** * Initializes a new {@link DimensionInfo} instance. * @param dimensionIdentifier the identifier for the dimension from the registry - * @param dimensionLevelName the level name as displayed in the F3 menu and logs + * @param levelName the level name as displayed in the F3 menu and logs * @param isFlat if true will set world lighting below surface-level to not display fog * @param isDebugType if true constrains the world to the very limited debug-type world */ - public DimensionInfo(@Nonnull String dimensionIdentifier, @Nonnull String dimensionLevelName, + public DimensionInfo(@Nonnull String dimensionIdentifier, @Nonnull String levelName, boolean isFlat, boolean isDebugType) { if (dimensionIdentifier == null || dimensionIdentifier.isEmpty() || dimensionIdentifier.isBlank()) { throw new IllegalArgumentException("DimensionRegistryName may not be empty or null"); } this.dimensionIdentifier = dimensionIdentifier; - if (dimensionLevelName == null || dimensionLevelName.isEmpty() - || dimensionLevelName.isBlank()) { + if (levelName == null || levelName.isEmpty() + || levelName.isBlank()) { throw new IllegalArgumentException("DimensionLevelName may not be empty or null"); } - this.dimensionLevelName = dimensionLevelName; + this.levelName = levelName; this.isFlat = isFlat; this.isDebugType = isDebugType; } @@ -42,8 +40,8 @@ public class DimensionInfo { return isFlat; } - public @Nonnull String getDimensionLevelName() { - return dimensionLevelName; + public @Nonnull String getLevelName() { + return levelName; } public @Nonnull String getDimensionIdentifier() { diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionRegistry.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionRegistry.java index 2c917d29f..606f53cc7 100644 --- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionRegistry.java +++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/DimensionRegistry.java @@ -1,10 +1,9 @@ package com.velocitypowered.proxy.protocol; -import java.util.HashMap; -import java.util.Map; -import java.util.NoSuchElementException; -import java.util.Set; +import java.util.*; import javax.annotation.Nonnull; + +import com.google.inject.internal.asm.$TypePath; import net.kyori.nbt.CompoundTag; import net.kyori.nbt.ListTag; import net.kyori.nbt.Tag; @@ -12,70 +11,51 @@ import net.kyori.nbt.TagType; public class DimensionRegistry { - // Mapping: - // dimensionIdentifier (Client connection refers to this), - // dimensionType (The game refers to this). - private final @Nonnull Map dimensionRegistry; - private final @Nonnull Set worldNames; + private final @Nonnull Set dimensionRegistry; + private final @Nonnull String[] levelNames; /** * Initializes a new {@link DimensionRegistry} instance. * This registry is required for 1.16+ clients/servers to communicate, * it constrains the dimension types and names the client can be sent * in a Respawn action (dimension change). - * @param dimensionRegistry a populated map containing dimensionIdentifier and dimensionType sets - * @param worldNames a populated {@link Set} of the dimension level names the server offers + * @param dimensionRegistry a populated set containing dimension data types + * @param levelNames a populated {@link Set} of the dimension level names the server offers */ - public DimensionRegistry(Map dimensionRegistry, - Set worldNames) { + public DimensionRegistry(Set dimensionRegistry, + String[] levelNames) { if (dimensionRegistry == null || dimensionRegistry.isEmpty() - || worldNames == null || worldNames.isEmpty()) { + || levelNames == null || levelNames.length == 0) { throw new IllegalArgumentException( "Dimension registry requires valid arguments, not null and not empty"); } this.dimensionRegistry = dimensionRegistry; - this.worldNames = worldNames; + this.levelNames = levelNames; } - public @Nonnull Map getDimensionRegistry() { + public @Nonnull Set getDimensionRegistry() { return dimensionRegistry; } - public @Nonnull Set getWorldNames() { - return worldNames; + public @Nonnull String[] getLevelNames() { + return levelNames; } /** - * Returns the internal dimension type as used by the game. - * @param dimensionIdentifier how the type is identified by the connection - * @return game internal dimension type + * Returns the internal dimension data type as used by the game. + * @param dimensionIdentifier how the dimension is identified by the connection + * @return game dimension data */ - public @Nonnull String getDimensionType(@Nonnull String dimensionIdentifier) { + public @Nonnull DimensionData getDimensionData(@Nonnull String dimensionIdentifier) { if (dimensionIdentifier == null) { throw new IllegalArgumentException("Dimension identifier cannot be null!"); } - if (dimensionIdentifier == null || !dimensionRegistry.containsKey(dimensionIdentifier)) { - throw new NoSuchElementException("Dimension with identifier " + dimensionIdentifier - + " doesn't exist in this Registry!"); - } - return dimensionRegistry.get(dimensionIdentifier); - } - - /** - * Returns the dimension identifier as used by the client. - * @param dimensionType the internal dimension type - * @return game dimension identifier - */ - public @Nonnull String getDimensionIdentifier(@Nonnull String dimensionType) { - if (dimensionType == null) { - throw new IllegalArgumentException("Dimension type cannot be null!"); - } - for (Map.Entry entry : dimensionRegistry.entrySet()) { - if (entry.getValue().equals(dimensionType)) { - return entry.getKey(); + for (DimensionData iter : dimensionRegistry) { + if(iter.getRegistryIdentifier().equals(dimensionIdentifier)) { + return iter; } } - throw new NoSuchElementException("Dimension type " + dimensionType + throw new NoSuchElementException("Dimension with identifier " + dimensionIdentifier + " doesn't exist in this Registry!"); } @@ -89,11 +69,13 @@ public class DimensionRegistry { throw new IllegalArgumentException("Dimension info cannot be null"); } try { - if (!worldNames.contains(toValidate.getDimensionLevelName())) { - return false; + getDimensionData(toValidate.getDimensionIdentifier()); + for(int i = 0; i < levelNames.length; i++) { + if(levelNames[i].equals(toValidate.getDimensionIdentifier())) { + return true; + } } - getDimensionType(toValidate.getDimensionIdentifier()); - return true; + return false; } catch (NoSuchElementException thrown) { return false; } @@ -103,51 +85,42 @@ public class DimensionRegistry { * Encodes the stored Dimension registry as CompoundTag. * @return the CompoundTag containing identifier:type mappings */ - public CompoundTag encodeToCompoundTag() { + public CompoundTag encodeRegistry() { CompoundTag ret = new CompoundTag(); ListTag list = new ListTag(TagType.COMPOUND); - for (Map.Entry entry : dimensionRegistry.entrySet()) { - CompoundTag item = new CompoundTag(); - item.putString("key", entry.getKey()); - item.putString("element", entry.getValue()); - list.add(item); + for (DimensionData iter : dimensionRegistry) { + list.add(iter.encode()); } ret.put("dimension", list); return ret; } /** - * Decodes a CompoundTag storing dimension mappings to a Map identifier:type. + * Decodes a CompoundTag storing a dimension registry * @param toParse CompoundTag containing a dimension registry + * @param levelNames world level names */ - public static Map parseToMapping(@Nonnull CompoundTag toParse) { + public static DimensionRegistry fromGameData(@Nonnull CompoundTag toParse, @Nonnull String[] levelNames) { if (toParse == null) { throw new IllegalArgumentException("CompoundTag cannot be null"); } + if (levelNames == null || levelNames.length == 0) { + throw new IllegalArgumentException("Level names cannot be null or empty"); + } if (!toParse.contains("dimension", TagType.LIST)) { throw new IllegalStateException("CompoundTag does not contain a dimension List"); } ListTag dimensions = toParse.getList("dimension"); - Map mappings = new HashMap(); + Set mappings = new HashSet(); for (Tag iter : dimensions) { - if (iter instanceof CompoundTag) { + if (!(iter instanceof CompoundTag)) { throw new IllegalStateException("DimensionList in CompoundTag contains an invalid entry"); } - CompoundTag mapping = (CompoundTag) iter; - String key = mapping.getString("key", null); - String element = mapping.getString("element", null); - if (element == null || key == null) { - throw new IllegalStateException("DimensionList in CompoundTag contains an mapping"); - } - if (mappings.containsKey(key) || mappings.containsValue(element)) { - throw new IllegalStateException( - "Dimension mappings may not have identifier/name duplicates"); - } - mappings.put(key, element); + mappings.add(DimensionData.fromNBT((CompoundTag) iter)); } if (mappings.isEmpty()) { throw new IllegalStateException("Dimension mapping cannot be empty"); } - return mappings; + return new DimensionRegistry(mappings, levelNames); } } diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java index 8ea5cbeb6..64104ebfa 100644 --- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java +++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/JoinGame.java @@ -2,12 +2,8 @@ package com.velocitypowered.proxy.protocol.packet; import com.velocitypowered.api.network.ProtocolVersion; import com.velocitypowered.proxy.connection.MinecraftSessionHandler; -import com.velocitypowered.proxy.protocol.DimensionInfo; -import com.velocitypowered.proxy.protocol.DimensionRegistry; -import com.velocitypowered.proxy.protocol.MinecraftPacket; -import com.velocitypowered.proxy.protocol.ProtocolUtils; +import com.velocitypowered.proxy.protocol.*; import io.netty.buffer.ByteBuf; -import net.kyori.nbt.CompoundTag; import org.checkerframework.checker.nullness.qual.Nullable; import java.util.Map; @@ -140,8 +136,7 @@ public class JoinGame implements MinecraftPacket { String levelName = null; if (version.compareTo(ProtocolVersion.MINECRAFT_1_16) >= 0) { String levelNames[] = ProtocolUtils.readStringArray(buf); - Map dimensionMapping = DimensionRegistry.parseToMapping(ProtocolUtils.readCompoundTag(buf)); - this.dimensionRegistry = new DimensionRegistry(dimensionMapping, Set.of(levelNames)); + this.dimensionRegistry = DimensionRegistry.fromGameData(ProtocolUtils.readCompoundTag(buf), levelNames); dimensionIdentifier = ProtocolUtils.readString(buf); levelName = ProtocolUtils.readString(buf); } else if (version.compareTo(ProtocolVersion.MINECRAFT_1_9_1) >= 0) { @@ -180,10 +175,10 @@ public class JoinGame implements MinecraftPacket { buf.writeInt(entityId); buf.writeByte(gamemode); if (version.compareTo(ProtocolVersion.MINECRAFT_1_16) >= 0) { - ProtocolUtils.writeStringArray(buf, dimensionRegistry.getWorldNames().toArray(new String[dimensionRegistry.getWorldNames().size()])); - ProtocolUtils.writeCompoundTag(buf, dimensionRegistry.encodeToCompoundTag()); + ProtocolUtils.writeStringArray(buf, dimensionRegistry.getLevelNames()); + ProtocolUtils.writeCompoundTag(buf, dimensionRegistry.encodeRegistry()); ProtocolUtils.writeString(buf, dimensionInfo.getDimensionIdentifier()); - ProtocolUtils.writeString(buf, dimensionInfo.getDimensionLevelName()); + ProtocolUtils.writeString(buf, dimensionInfo.getLevelName()); } else if (version.compareTo(ProtocolVersion.MINECRAFT_1_9_1) >= 0) { buf.writeInt(dimension); } else { diff --git a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java index 67fafb7f7..74832b5d8 100644 --- a/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java +++ b/proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/Respawn.java @@ -123,7 +123,7 @@ public class Respawn implements MinecraftPacket { public void encode(ByteBuf buf, ProtocolUtils.Direction direction, ProtocolVersion version) { if (version.compareTo(ProtocolVersion.MINECRAFT_1_16) >= 0) { ProtocolUtils.writeString(buf, dimensionInfo.getDimensionIdentifier()); - ProtocolUtils.writeString(buf, dimensionInfo.getDimensionLevelName()); + ProtocolUtils.writeString(buf, dimensionInfo.getLevelName()); } else { buf.writeInt(dimension); }