3
0
Mirror von https://github.com/ViaVersion/ViaVersion.git synchronisiert 2024-12-27 08:30:09 +01:00

Optimize/improve Protocol packet mapping

Also makes it possible to work with packet types of different states in a Protocol
Dieser Commit ist enthalten in:
Nassim Jahnke 2023-02-12 17:27:36 +01:00
Ursprung cb2165eb93
Commit f5ddc6550d
Es konnte kein GPG-Schlüssel zu dieser Signatur gefunden werden
GPG-Schlüssel-ID: 6BE3B555EBC5982B
13 geänderte Dateien mit 787 neuen und 358 gelöschten Zeilen

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@ -32,24 +32,41 @@ import com.viaversion.viaversion.api.protocol.packet.PacketType;
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
import com.viaversion.viaversion.api.protocol.packet.State;
import com.viaversion.viaversion.api.protocol.packet.mapping.PacketMapping;
import com.viaversion.viaversion.api.protocol.packet.mapping.PacketMappings;
import com.viaversion.viaversion.api.protocol.packet.provider.PacketTypeMap;
import com.viaversion.viaversion.api.protocol.packet.provider.PacketTypesProvider;
import com.viaversion.viaversion.api.protocol.packet.provider.SimplePacketTypesProvider;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
import com.viaversion.viaversion.exception.CancelException;
import com.viaversion.viaversion.exception.InformativeException;
import java.util.Arrays;
import java.util.Collections;
import java.util.EnumMap;
import java.util.HashMap;
import java.util.Map;
import java.util.function.BiConsumer;
import java.util.function.Predicate;
import java.util.logging.Level;
import org.checkerframework.checker.nullness.qual.Nullable;
public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 extends ClientboundPacketType, S1 extends ServerboundPacketType, S2 extends ServerboundPacketType>
implements Protocol<C1, C2, S1, S2> {
private final Map<Packet, ProtocolPacket> serverbound = new HashMap<>();
private final Map<Packet, ProtocolPacket> clientbound = new HashMap<>();
private final Map<Class<?>, Object> storedObjects = new HashMap<>(); // currently only used for MetadataRewriters
/**
* Abstract protocol class to handle packet transformation between two protocol versions.
*
* @param <C1> unmapped clientbound packet type
* @param <C2> mapped clientbound packet type
* @param <S1> mapped serverbound packet type
* @param <S2> unmapped serverbound packet type
*/
public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 extends ClientboundPacketType,
S1 extends ServerboundPacketType, S2 extends ServerboundPacketType> implements Protocol<C1, C2, S1, S2> {
protected final Class<C1> unmappedClientboundPacketType;
protected final Class<C2> mappedClientboundPacketType;
protected final Class<S1> mappedServerboundPacketType;
protected final Class<S2> unmappedServerboundPacketType;
private final PacketTypesProvider<C1, C2, S1, S2> packetTypesProvider;
private final PacketMappings serverboundMappings = PacketMappings.arrayMappings();
private final PacketMappings clientboundMappings = PacketMappings.arrayMappings();
private final Map<Class<?>, Object> storedObjects = new HashMap<>();
private boolean initialized;
protected AbstractProtocol() {
@ -65,11 +82,12 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
this.mappedClientboundPacketType = mappedClientboundPacketType;
this.mappedServerboundPacketType = mappedServerboundPacketType;
this.unmappedServerboundPacketType = unmappedServerboundPacketType;
this.packetTypesProvider = createPacketTypesProvider();
}
@Override
public final void initialize() {
Preconditions.checkArgument(!initialized);
Preconditions.checkArgument(!initialized, "Protocol has already been initialized");
initialized = true;
registerPackets();
@ -77,62 +95,47 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
// Register the rest of the ids with no handlers if necessary
if (unmappedClientboundPacketType != null && mappedClientboundPacketType != null
&& unmappedClientboundPacketType != mappedClientboundPacketType) {
registerClientboundChannelIdChanges();
registerPacketIdChanges(
packetTypesProvider.unmappedClientboundPacketTypes(),
packetTypesProvider.mappedClientboundPacketTypes(),
this::hasRegisteredClientbound,
this::registerClientbound
);
}
if (mappedServerboundPacketType != null && unmappedServerboundPacketType != null
&& mappedServerboundPacketType != unmappedServerboundPacketType) {
registerServerboundChannelIdChanges();
if (mappedServerboundPacketType != null && unmappedServerboundPacketType != null &&
mappedServerboundPacketType != unmappedServerboundPacketType) {
registerPacketIdChanges(
packetTypesProvider.unmappedServerboundPacketTypes(),
packetTypesProvider.mappedServerboundPacketTypes(),
this::hasRegisteredServerbound,
this::registerServerbound
);
}
}
protected void registerClientboundChannelIdChanges() {
C2[] newConstants = mappedClientboundPacketType.getEnumConstants();
Map<String, C2> newClientboundPackets = new HashMap<>(newConstants.length);
for (C2 newConstant : newConstants) {
newClientboundPackets.put(newConstant.getName(), newConstant);
}
for (C1 packet : unmappedClientboundPacketType.getEnumConstants()) {
C2 mappedPacket = newClientboundPackets.get(packet.getName());
if (mappedPacket == null) {
// Packet doesn't exist on new client
Preconditions.checkArgument(hasRegisteredClientbound(packet),
"Packet " + packet + " in " + getClass().getSimpleName() + " has no mapping - it needs to be manually cancelled or remapped!");
private <U extends PacketType, M extends PacketType> void registerPacketIdChanges(
Map<State, PacketTypeMap<U>> unmappedPacketTypes,
Map<State, PacketTypeMap<M>> mappedPacketTypes,
Predicate<U> registeredPredicate,
BiConsumer<U, M> registerConsumer
) {
for (Map.Entry<State, PacketTypeMap<M>> entry : mappedPacketTypes.entrySet()) {
PacketTypeMap<M> mappedTypes = entry.getValue();
for (U unmappedType : unmappedPacketTypes.get(entry.getKey()).types()) {
M mappedType = mappedTypes.typeByName(unmappedType.getName());
if (mappedType == null) {
// No mapped packet of the same name exists
Preconditions.checkArgument(registeredPredicate.test(unmappedType),
"Packet %s in %s has no mapping - it needs to be manually cancelled or remapped", unmappedType, getClass());
continue;
}
if (!hasRegisteredClientbound(packet)) {
registerClientbound(packet, mappedPacket);
// Register if no custom handler exists and ids are different
if (unmappedType.getId() != mappedType.getId() && !registeredPredicate.test(unmappedType)) {
registerConsumer.accept(unmappedType, mappedType);
}
}
}
protected void registerServerboundChannelIdChanges() {
S1[] oldConstants = mappedServerboundPacketType.getEnumConstants();
Map<String, S1> oldServerboundConstants = new HashMap<>(oldConstants.length);
for (S1 oldConstant : oldConstants) {
oldServerboundConstants.put(oldConstant.getName(), oldConstant);
}
for (S2 packet : unmappedServerboundPacketType.getEnumConstants()) {
S1 mappedPacket = oldServerboundConstants.get(packet.getName());
if (mappedPacket == null) {
// Packet doesn't exist on old server
Preconditions.checkArgument(hasRegisteredServerbound(packet),
"Packet " + packet + " in " + getClass().getSimpleName() + " has no mapping - it needs to be manually cancelled or remapped!");
continue;
}
if (!hasRegisteredServerbound(packet)) {
registerServerbound(packet, mappedPacket);
}
}
}
/**
* Register the packets for this protocol. To be overriden.
*/
protected void registerPackets() {
}
@Override
@ -141,6 +144,12 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
onMappingDataLoaded();
}
/**
* Register the packets for this protocol. To be overriden.
*/
protected void registerPackets() {
}
/**
* Called after {@link #loadMappingData()} is called; load extra mapping data for the protocol.
* <p>
@ -153,65 +162,70 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
connection.addEntityTracker(this.getClass(), tracker);
}
protected PacketTypesProvider<C1, C2, S1, S2> createPacketTypesProvider() {
return new SimplePacketTypesProvider<>(
packetTypeMap(unmappedClientboundPacketType),
packetTypeMap(mappedClientboundPacketType),
packetTypeMap(mappedServerboundPacketType),
packetTypeMap(unmappedServerboundPacketType)
);
}
private <P extends PacketType> Map<State, PacketTypeMap<P>> packetTypeMap(Class<P> packetTypeClass) {
if (packetTypeClass != null) {
Map<State, PacketTypeMap<P>> map = new EnumMap<>(State.class);
map.put(State.PLAY, PacketTypeMap.of(packetTypeClass));
return map;
}
return Collections.emptyMap();
}
// ---------------------------------------------------------------------------------
@Override
public void registerServerbound(State state, int unmappedPacketId, int mappedPacketId, PacketHandler handler, boolean override) {
ProtocolPacket protocolPacket = new ProtocolPacket(state, unmappedPacketId, mappedPacketId, handler);
Packet packet = new Packet(state, mappedPacketId);
if (!override && serverbound.containsKey(packet)) {
Via.getPlatform().getLogger().log(Level.WARNING, packet + " already registered!" +
Preconditions.checkArgument(unmappedPacketId != -1, "Unmapped packet id cannot be -1");
PacketMapping packetMapping = PacketMapping.of(mappedPacketId, handler);
if (!override && serverboundMappings.hasMapping(state, unmappedPacketId)) {
Via.getPlatform().getLogger().log(Level.WARNING, unmappedPacketId + " already registered!" +
" If this override is intentional, set override to true. Stacktrace: ", new Exception());
}
serverbound.put(packet, protocolPacket);
serverboundMappings.addMapping(state, unmappedPacketId, packetMapping);
}
@Override
public void cancelServerbound(State state, int unmappedPacketId, int mappedPacketId) {
registerServerbound(state, unmappedPacketId, mappedPacketId, PacketWrapper::cancel);
}
@Override
public void cancelServerbound(State state, int mappedPacketId) {
cancelServerbound(state, -1, mappedPacketId);
}
@Override
public void cancelClientbound(State state, int unmappedPacketId, int mappedPacketId) {
registerClientbound(state, unmappedPacketId, mappedPacketId, PacketWrapper::cancel);
}
@Override
public void cancelClientbound(State state, int unmappedPacketId) {
cancelClientbound(state, unmappedPacketId, -1);
public void cancelServerbound(State state, int unmappedPacketId) {
registerServerbound(state, unmappedPacketId, unmappedPacketId, PacketWrapper::cancel);
}
@Override
public void registerClientbound(State state, int unmappedPacketId, int mappedPacketId, PacketHandler handler, boolean override) {
ProtocolPacket protocolPacket = new ProtocolPacket(state, unmappedPacketId, mappedPacketId, handler);
Packet packet = new Packet(state, unmappedPacketId);
if (!override && clientbound.containsKey(packet)) {
Via.getPlatform().getLogger().log(Level.WARNING, packet + " already registered!" +
Preconditions.checkArgument(unmappedPacketId != -1, "Unmapped packet id cannot be -1");
PacketMapping packetMapping = PacketMapping.of(mappedPacketId, handler);
if (!override && clientboundMappings.hasMapping(state, unmappedPacketId)) {
Via.getPlatform().getLogger().log(Level.WARNING, unmappedPacketId + " already registered!" +
" If override is intentional, set override to true. Stacktrace: ", new Exception());
}
clientbound.put(packet, protocolPacket);
clientboundMappings.addMapping(state, unmappedPacketId, packetMapping);
}
@Override
public void cancelClientbound(State state, int unmappedPacketId) {
registerClientbound(state, unmappedPacketId, unmappedPacketId, PacketWrapper::cancel);
}
// ---------------------------------------------------------------------------------
@Override
public void registerClientbound(C1 packetType, @Nullable PacketHandler handler) {
checkPacketType(packetType, unmappedClientboundPacketType == null || packetType.getClass() == unmappedClientboundPacketType);
//noinspection unchecked
C2 mappedPacket = unmappedClientboundPacketType == mappedClientboundPacketType ? (C2) packetType
: Arrays.stream(mappedClientboundPacketType.getEnumConstants()).filter(en -> en.getName().equals(packetType.getName())).findAny().orElse(null);
Preconditions.checkNotNull(mappedPacket, "Packet type " + packetType + " in " + packetType.getClass().getSimpleName() + " could not be automatically mapped!");
registerClientbound(packetType, mappedPacket, handler);
PacketTypeMap<C2> mappedPacketTypes = packetTypesProvider.mappedClientboundPacketTypes().get(packetType.state());
C2 mappedPacketType = mappedPacketType(packetType, mappedPacketTypes, unmappedClientboundPacketType, mappedClientboundPacketType);
registerClientbound(packetType, mappedPacketType, handler);
}
@Override
public void registerClientbound(C1 packetType, @Nullable C2 mappedPacketType, @Nullable PacketHandler handler, boolean override) {
register(clientbound, packetType, mappedPacketType, unmappedClientboundPacketType, mappedClientboundPacketType, handler, override);
register(clientboundMappings, packetType, mappedPacketType, unmappedClientboundPacketType, mappedClientboundPacketType, handler, override);
}
@Override
@ -221,19 +235,14 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
@Override
public void registerServerbound(S2 packetType, @Nullable PacketHandler handler) {
checkPacketType(packetType, unmappedServerboundPacketType == null || packetType.getClass() == unmappedServerboundPacketType);
//noinspection unchecked
S1 mappedPacket = mappedServerboundPacketType == unmappedServerboundPacketType ? (S1) packetType
: Arrays.stream(mappedServerboundPacketType.getEnumConstants()).filter(en -> en.getName().equals(packetType.getName())).findAny().orElse(null);
Preconditions.checkNotNull(mappedPacket, "Packet type " + packetType + " in " + packetType.getClass().getSimpleName() + " could not be automatically mapped!");
registerServerbound(packetType, mappedPacket, handler);
PacketTypeMap<S1> mappedPacketTypes = packetTypesProvider.mappedServerboundPacketTypes().get(packetType.state());
S1 mappedPacketType = mappedPacketType(packetType, mappedPacketTypes, unmappedServerboundPacketType, mappedServerboundPacketType);
registerServerbound(packetType, mappedPacketType, handler);
}
@Override
public void registerServerbound(S2 packetType, @Nullable S1 mappedPacketType, @Nullable PacketHandler handler, boolean override) {
register(serverbound, packetType, mappedPacketType, unmappedServerboundPacketType, mappedServerboundPacketType, handler, override);
register(serverboundMappings, packetType, mappedPacketType, unmappedServerboundPacketType, mappedServerboundPacketType, handler, override);
}
@Override
@ -241,66 +250,64 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
registerServerbound(packetType, null, PacketWrapper::cancel);
}
private void register(Map<Packet, ProtocolPacket> packetMap, PacketType packetType, @Nullable PacketType mappedPacketType,
Class<? extends PacketType> unmappedPacketEnum, Class<? extends PacketType> mappedPacketEnum,
private void register(PacketMappings packetMappings, PacketType packetType, @Nullable PacketType mappedPacketType,
Class<? extends PacketType> unmappedPacketClass, Class<? extends PacketType> mappedPacketClass,
@Nullable PacketHandler handler, boolean override) {
checkPacketType(packetType, unmappedPacketEnum == null || packetType.getClass() == unmappedPacketEnum);
checkPacketType(mappedPacketType, mappedPacketType == null || mappedPacketEnum == null || mappedPacketType.getClass() == mappedPacketEnum);
Preconditions.checkArgument(mappedPacketType == null || packetType.state() == mappedPacketType.state(), "Packet type state does not match mapped packet type state");
checkPacketType(packetType, unmappedPacketClass == null || unmappedPacketClass.isInstance(packetType));
if (mappedPacketType != null) {
checkPacketType(mappedPacketType, mappedPacketClass == null || mappedPacketClass.isInstance(mappedPacketType));
Preconditions.checkArgument(packetType.state() == mappedPacketType.state(),
"Packet type state does not match mapped packet type state");
Preconditions.checkArgument(packetType.direction() == mappedPacketType.direction(),
"Packet type direction does not match mapped packet type state");
}
ProtocolPacket protocolPacket = new ProtocolPacket(packetType.state(), packetType, mappedPacketType, handler);
Packet packet = new Packet(packetType.state(), packetType.getId());
if (!override && packetMap.containsKey(packet)) {
Via.getPlatform().getLogger().log(Level.WARNING, packet + " already registered!" +
PacketMapping packetMapping = PacketMapping.of(mappedPacketType, handler);
if (!override && packetMappings.hasMapping(packetType)) {
Via.getPlatform().getLogger().log(Level.WARNING, packetType + " already registered!" +
" If override is intentional, set override to true. Stacktrace: ", new Exception());
}
packetMap.put(packet, protocolPacket);
packetMappings.addMapping(packetType, packetMapping);
}
@Override
public boolean hasRegisteredClientbound(C1 packetType) {
return hasRegisteredClientbound(packetType.state(), packetType.getId());
private static <U extends PacketType, M extends PacketType> M mappedPacketType(U packetType, PacketTypeMap<M> mappedTypes, Class<U> unmappedPacketTypeClass, Class<M> mappedPacketTypeClass) {
Preconditions.checkNotNull(packetType);
checkPacketType(packetType, unmappedPacketTypeClass == null || unmappedPacketTypeClass.isInstance(packetType));
if (unmappedPacketTypeClass == mappedPacketTypeClass) {
//noinspection unchecked
return (M) packetType;
}
@Override
public boolean hasRegisteredServerbound(S2 packetType) {
return hasRegisteredServerbound(packetType.state(), packetType.getId());
Preconditions.checkNotNull(mappedTypes, "Mapped packet types not provided for state %s of type class %s", packetType.state(), mappedPacketTypeClass);
M mappedType = mappedTypes.typeByName(packetType.getName());
if (mappedType != null) {
return mappedType;
}
throw new IllegalArgumentException("Packet type " + packetType + " in " + packetType.getClass().getSimpleName() + " could not be automatically mapped!");
}
@Override
public boolean hasRegisteredClientbound(State state, int unmappedPacketId) {
Packet packet = new Packet(state, unmappedPacketId);
return clientbound.containsKey(packet);
return clientboundMappings.hasMapping(state, unmappedPacketId);
}
@Override
public boolean hasRegisteredServerbound(State state, int unmappedPacketId) {
Packet packet = new Packet(state, unmappedPacketId);
return serverbound.containsKey(packet);
return serverboundMappings.hasMapping(state, unmappedPacketId);
}
@Override
public void transform(Direction direction, State state, PacketWrapper packetWrapper) throws Exception {
Packet statePacket = new Packet(state, packetWrapper.getId());
Map<Packet, ProtocolPacket> packetMap = direction == Direction.CLIENTBOUND ? clientbound : serverbound;
ProtocolPacket protocolPacket = packetMap.get(statePacket);
if (protocolPacket == null) {
PacketMappings mappings = direction == Direction.CLIENTBOUND ? clientboundMappings : serverboundMappings;
int unmappedId = packetWrapper.getId();
PacketMapping packetMapping = mappings.mappedPacket(state, unmappedId);
if (packetMapping == null) {
return;
}
// Write packet id
int unmappedId = packetWrapper.getId();
if (protocolPacket.isMappedOverTypes()) {
packetWrapper.setPacketType(protocolPacket.getMappedPacketType());
} else {
int mappedId = direction == Direction.CLIENTBOUND ? protocolPacket.getNewId() : protocolPacket.getOldId();
if (unmappedId != mappedId) {
//noinspection deprecation
packetWrapper.setId(mappedId);
}
}
PacketHandler handler = protocolPacket.getRemapper();
// Change packet id and apply remapping
packetMapping.applyType(packetWrapper);
PacketHandler handler = packetMapping.handler();
if (handler != null) {
try {
handler.handle(packetWrapper);
@ -333,10 +340,8 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
throw e;
}
Class<? extends PacketType> packetTypeClass = state == State.PLAY ? (direction == Direction.CLIENTBOUND ? unmappedClientboundPacketType : unmappedServerboundPacketType) : null;
if (packetTypeClass != null) {
PacketType[] enumConstants = packetTypeClass.getEnumConstants();
PacketType packetType = unmappedPacketId < enumConstants.length && unmappedPacketId >= 0 ? enumConstants[unmappedPacketId] : null;
PacketType packetType = direction == Direction.CLIENTBOUND ? unmappedClientboundPacketType(state, unmappedPacketId) : unmappedServerboundPacketType(state, unmappedPacketId);
if (packetType != null) {
Via.getPlatform().getLogger().warning("ERROR IN " + getClass().getSimpleName() + " IN REMAP OF " + packetType + " (" + toNiceHex(unmappedPacketId) + ")");
} else {
Via.getPlatform().getLogger().warning("ERROR IN " + getClass().getSimpleName()
@ -345,6 +350,16 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
throw e;
}
private @Nullable C1 unmappedClientboundPacketType(final State state, final int packetId) {
PacketTypeMap<C1> map = packetTypesProvider.unmappedClientboundPacketTypes().get(state);
return map != null ? map.typeById(packetId) : null;
}
private @Nullable S2 unmappedServerboundPacketType(final State state, final int packetId) {
PacketTypeMap<S2> map = packetTypesProvider.unmappedServerboundPacketTypes().get(state);
return map != null ? map.typeById(packetId) : null;
}
public static String toNiceHex(int id) {
String hex = Integer.toHexString(id).toUpperCase();
return (hex.length() == 1 ? "0x0" : "0x") + hex;
@ -355,9 +370,9 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
* @param isValid expression to check the packet's validity
* @throws IllegalArgumentException if the given expression is not met
*/
private void checkPacketType(PacketType packetType, boolean isValid) {
private static void checkPacketType(PacketType packetType, boolean isValid) {
if (!isValid) {
throw new IllegalArgumentException("Packet type " + packetType + " in " + packetType.getClass().getSimpleName() + " is taken from the wrong packet type class");
throw new IllegalArgumentException("Packet type " + packetType + " in " + packetType.getClass().getSimpleName() + " is taken from the wrong packet types class");
}
}
@ -372,145 +387,12 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
storedObjects.put(object.getClass(), object);
}
public PacketTypesProvider<C1, C2, S1, S2> packetTypesProvider() {
return packetTypesProvider;
}
@Override
public String toString() {
return "Protocol:" + getClass().getSimpleName();
}
public static final class Packet {
private final State state;
private final int packetId;
public Packet(State state, int packetId) {
this.state = state;
this.packetId = packetId;
}
public State getState() {
return state;
}
public int getPacketId() {
return packetId;
}
@Override
public String toString() {
return "Packet{" + "state=" + state + ", packetId=" + packetId + '}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Packet that = (Packet) o;
return packetId == that.packetId && state == that.state;
}
@Override
public int hashCode() {
int result = state != null ? state.hashCode() : 0;
result = 31 * result + packetId;
return result;
}
}
public static final class ProtocolPacket {
private final State state;
private final int oldId;
private final int newId;
private final PacketType unmappedPacketType;
private final PacketType mappedPacketType;
private final PacketHandler handler;
@Deprecated
public ProtocolPacket(State state, int oldId, int newId, @Nullable PacketHandler handler) {
this.state = state;
this.oldId = oldId;
this.newId = newId;
this.handler = handler;
this.unmappedPacketType = null;
this.mappedPacketType = null;
}
public ProtocolPacket(State state, PacketType unmappedPacketType, @Nullable PacketType mappedPacketType, @Nullable PacketHandler handler) {
this.state = state;
this.unmappedPacketType = unmappedPacketType;
if (unmappedPacketType.direction() == Direction.CLIENTBOUND) {
this.oldId = unmappedPacketType.getId();
this.newId = mappedPacketType != null ? mappedPacketType.getId() : -1;
} else {
// Serverbound switcheroo in old vs. new id caused issues and was counterintuitive
this.oldId = mappedPacketType != null ? mappedPacketType.getId() : -1;
this.newId = unmappedPacketType.getId();
}
this.mappedPacketType = mappedPacketType;
this.handler = handler;
}
public State getState() {
return state;
}
@Deprecated
public int getOldId() {
return oldId;
}
@Deprecated
public int getNewId() {
return newId;
}
/**
* Returns the unmapped packet type, or null if mapped over ids.
* This is NOT the same as calling {@link #getOldId()} (think of unmapped vs. old in 1.171.16).
*
* @return unmapped packet type, or null if mapped over ids
*/
@Nullable
public PacketType getUnmappedPacketType() {
return unmappedPacketType;
}
/**
* Returns the mapped packet type, or null if mapped over ids or mapped to no packet type.
* This is NOT the same as calling {@link #getNewId()} (think of mapped vs. new in 1.171.16).
*
* @return new packet type, or null if mapped over ids or mapped to no packet type
*/
@Nullable
public PacketType getMappedPacketType() {
return mappedPacketType;
}
public boolean isMappedOverTypes() {
return unmappedPacketType != null;
}
@Nullable
public PacketHandler getRemapper() {
return handler;
}
@Override
public String toString() {
return "ProtocolPacket{" +
"state=" + state +
", oldId=" + oldId +
", newId=" + newId +
", unmappedPacketType=" + unmappedPacketType +
", mappedPacketType=" + mappedPacketType +
", handler=" + handler +
'}';
}
}
public Map<Packet, ProtocolPacket> getClientbound() {
return clientbound;
}
public Map<Packet, ProtocolPacket> getServerbound() {
return serverbound;
}
}

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@ -195,7 +195,9 @@ public interface Protocol<C1 extends ClientboundPacketType, C2 extends Clientbou
* @param packetType clientbound packet type
* @return true if already registered
*/
boolean hasRegisteredClientbound(C1 packetType);
default boolean hasRegisteredClientbound(C1 packetType) {
return hasRegisteredClientbound(packetType.state(), packetType.getId());
}
/**
* Checks if a serverbound packet has already been registered.
@ -203,7 +205,9 @@ public interface Protocol<C1 extends ClientboundPacketType, C2 extends Clientbou
* @param packetType serverbound packet type
* @return true if already registered
*/
boolean hasRegisteredServerbound(S2 packetType);
default boolean hasRegisteredServerbound(S2 packetType) {
return hasRegisteredServerbound(packetType.state(), packetType.getId());
}
/**
* Checks if a clientbound packet has already been registered.
@ -338,13 +342,17 @@ public interface Protocol<C1 extends ClientboundPacketType, C2 extends Clientbou
* @deprecated use {@link #cancelServerbound(State, int)}
*/
@Deprecated/*(forRemoval = true)*/
void cancelServerbound(State state, int unmappedPacketId, int mappedPacketId);
default void cancelServerbound(State state, int unmappedPacketId, int mappedPacketId) {
cancelServerbound(state, unmappedPacketId);
}
/**
* @deprecated use {@link #cancelClientbound(State, int)}
*/
@Deprecated/*(forRemoval = true)*/
void cancelClientbound(State state, int unmappedPacketId, int mappedPacketId);
default void cancelClientbound(State state, int unmappedPacketId, int mappedPacketId) {
cancelClientbound(state, unmappedPacketId);
}
@Deprecated/*(forRemoval = true)*/
default void registerClientbound(State state, int unmappedPacketId, int mappedPacketId, PacketRemapper packetRemapper) {

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@ -0,0 +1,55 @@
/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.mapping;
import com.viaversion.viaversion.api.protocol.packet.State;
import java.util.Arrays;
import org.checkerframework.checker.nullness.qual.Nullable;
final class PacketArrayMappings implements PacketMappings {
private final PacketMapping[][] packets = new PacketMapping[State.values().length][];
@Override
public @Nullable PacketMapping mappedPacket(final State state, final int unmappedId) {
final PacketMapping[] packets = this.packets[state.ordinal()];
if (packets != null && unmappedId >= 0 && unmappedId < packets.length) {
return packets[unmappedId];
}
return null;
}
@Override
public void addMapping(final State state, final int unmappedId, final PacketMapping mapping) {
final int ordinal = state.ordinal();
PacketMapping[] packets = this.packets[ordinal];
if (packets == null) {
packets = new PacketMapping[unmappedId + 8];
this.packets[ordinal] = packets;
} else if (unmappedId >= packets.length) {
packets = Arrays.copyOf(packets, unmappedId + 32);
this.packets[ordinal] = packets;
}
packets[unmappedId] = mapping;
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.mapping;
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
import org.checkerframework.checker.nullness.qual.Nullable;
final class PacketIdMapping implements PacketMapping {
private final int mappedPacketId;
private final PacketHandler handler;
PacketIdMapping(int mappedPacketId, @Nullable PacketHandler handler) {
this.mappedPacketId = mappedPacketId;
this.handler = handler;
}
@Override
public void applyType(final PacketWrapper wrapper) {
//noinspection deprecation
wrapper.setId(mappedPacketId);
}
@Override
public @Nullable PacketHandler handler() {
return handler;
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.mapping;
import com.viaversion.viaversion.api.protocol.packet.PacketType;
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Packet mapping over packet types or ids containing a packet transformer.
*/
public interface PacketMapping {
/**
* Applies the changed packet type or id to the given packet wrapper.
*
* @param wrapper packet wrapper
*/
void applyType(PacketWrapper wrapper);
/**
* Returns a packet transformer to transform a packet from one protocol version to another.
*
* @return packet transformer, or null if no action has to be taken
*/
@Nullable PacketHandler handler();
static PacketMapping of(final int mappedPacketId, @Nullable final PacketHandler handler) {
return new PacketIdMapping(mappedPacketId, handler);
}
static PacketMapping of(@Nullable final PacketType mappedPacketType, @Nullable final PacketHandler handler) {
return new PacketTypeMapping(mappedPacketType, handler);
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.mapping;
import com.viaversion.viaversion.api.protocol.packet.PacketType;
import com.viaversion.viaversion.api.protocol.packet.State;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Mappings to transform packets between two protocol versions.
*/
public interface PacketMappings {
/**
* Returns a packet mapping for the given packet.
*
* @param state protocol stae
* @param unmappedId unmapped packet id
* @return packet mapping if present
*/
@Nullable PacketMapping mappedPacket(State state, int unmappedId);
/**
* Returns whether the given packet type has a mapping.
*
* @param packetType unmapped packet type
* @return whether the given packet type has a mapping
*/
default boolean hasMapping(PacketType packetType) {
return mappedPacket(packetType.state(), packetType.getId()) != null;
}
/**
* Returns whether the given packet type has a mapping.
*
* @param state protocol state
* @param unmappedId unmapped packet id
* @return whether the given packet type has a mapping
*/
default boolean hasMapping(State state, int unmappedId) {
return mappedPacket(state, unmappedId) != null;
}
/**
* Adds a packet mapping.
*
* @param packetType unmapped packet type
* @param mapping packet mapping
*/
default void addMapping(PacketType packetType, PacketMapping mapping) {
addMapping(packetType.state(), packetType.getId(), mapping);
}
/**
* Adds a packet mapping.
*
* @param state protocol state
* @param unmappedId unmapped packet id
* @param mapping packet mapping
*/
void addMapping(State state, int unmappedId, PacketMapping mapping);
static PacketMappings arrayMappings() {
return new PacketArrayMappings();
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.mapping;
import com.viaversion.viaversion.api.protocol.packet.PacketType;
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
import org.checkerframework.checker.nullness.qual.Nullable;
final class PacketTypeMapping implements PacketMapping {
private final PacketType mappedPacketType;
private final PacketHandler handler;
PacketTypeMapping(@Nullable PacketType mappedPacketType, @Nullable PacketHandler handler) {
this.mappedPacketType = mappedPacketType;
this.handler = handler;
}
@Override
public void applyType(PacketWrapper wrapper) {
if (mappedPacketType != null) {
wrapper.setPacketType(mappedPacketType);
}
}
@Override
public @Nullable PacketHandler handler() {
return handler;
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.provider;
import java.util.Arrays;
import java.util.Collection;
import java.util.Map;
import org.checkerframework.checker.nullness.qual.Nullable;
final class PacketTypeArrayMap<P> implements PacketTypeMap<P> {
private final Map<String, P> packetsByName;
private final P[] packets;
PacketTypeArrayMap(Map<String, P> packetsByName, P[] packets) {
this.packetsByName = packetsByName;
this.packets = packets;
}
@Override
public @Nullable P typeByName(String packetTypeName) {
return packetsByName.get(packetTypeName);
}
@Override
public @Nullable P typeById(int packetTypeId) {
return packetTypeId >= 0 && packetTypeId < packets.length ? packets[packetTypeId] : null;
}
@Override
public Collection<P> types() {
return Arrays.asList(packets);
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.provider;
import com.viaversion.viaversion.api.protocol.packet.PacketType;
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.checkerframework.checker.nullness.qual.Nullable;
public interface PacketTypeMap<P> {
/**
* Returns the packet type by the given name.
*
* @param packetTypeName packet type name
* @return packet type if present
*/
@Nullable P typeByName(String packetTypeName);
/**
* Returns the packet type by the given id.
*
* @param packetTypeId packet type id
* @return packet type if present
*/
@Nullable P typeById(int packetTypeId);
/**
* Returns a collection of all contained packet types.
*
* @return collection of all packet types
*/
Collection<P> types();
static <S extends PacketType, T extends S> PacketTypeMap<S> of(final Class<T> enumClass) {
if (!enumClass.isEnum()) {
throw new IllegalArgumentException("Given class is not an enum");
}
final S[] types = enumClass.getEnumConstants();
final Map<String, S> byName = new HashMap<>(types.length);
for (final S type : types) {
byName.put(type.getName(), type);
}
return of(byName, types);
}
static <T> PacketTypeMap<T> of(final Map<String, T> packetsByName, final Int2ObjectMap<T> packetsById) {
return new PacketTypeMapMap<>(packetsByName, packetsById);
}
static <T> PacketTypeMap<T> of(final Map<String, T> packetsByName, final T[] packets) {
return new PacketTypeArrayMap<>(packetsByName, packets);
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.provider;
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import java.util.Collection;
import java.util.Map;
import org.checkerframework.checker.nullness.qual.Nullable;
final class PacketTypeMapMap<P> implements PacketTypeMap<P> {
private final Map<String, P> packetsByName;
private final Int2ObjectMap<P> packetsById;
PacketTypeMapMap(Map<String, P> packetsByName,
Int2ObjectMap<P> packetsById) {
this.packetsByName = packetsByName;
this.packetsById = packetsById;
}
@Override
public @Nullable P typeByName(String packetTypeName) {
return packetsByName.get(packetTypeName);
}
@Override
public @Nullable P typeById(int packetTypeId) {
return packetsById.get(packetTypeId);
}
@Override
public Collection<P> types() {
return packetsById.values();
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.provider;
import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
import com.viaversion.viaversion.api.protocol.packet.State;
import java.util.Map;
public interface PacketTypesProvider<CU extends ClientboundPacketType, CM extends ClientboundPacketType, SM extends ServerboundPacketType, SU extends ServerboundPacketType> {
/**
* Returns a map of all unmapped clientbound packet types that are expected to be used within a protocol.
* This means that if {@code C1} encompasses more than just {@link State#PLAY} packets, the other types are included as well.
*
* @return map of unmapped clientbound packet types
*/
Map<State, PacketTypeMap<CU>> unmappedClientboundPacketTypes();
/**
* Return a map of all unmapped serverbound packet types that are expected to be used within the protocol.
* This means that if {@code S2} encompasses more than just {@link State#PLAY} packets, the other types have to be included as well.
*
* @return map of unmapped serverbound packet types
*/
Map<State, PacketTypeMap<SU>> unmappedServerboundPacketTypes();
/**
* Returns a map of all mapped clientbound packet types that are expected to be used within the protocol.
*
* @return map of mapped clientbound packet types
*/
Map<State, PacketTypeMap<CM>> mappedClientboundPacketTypes();
/**
* Returns a map of all mapped serverbound packet types that are expected to be used within the protocol.
*
* @return map of mapped serverbound packet types
*/
Map<State, PacketTypeMap<SM>> mappedServerboundPacketTypes();
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.viaversion.viaversion.api.protocol.packet.provider;
import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
import com.viaversion.viaversion.api.protocol.packet.State;
import java.util.Map;
public final class SimplePacketTypesProvider<CU extends ClientboundPacketType, CM extends ClientboundPacketType, SM extends ServerboundPacketType, SU extends ServerboundPacketType> implements PacketTypesProvider<CU, CM, SM, SU> {
private final Map<State, PacketTypeMap<CU>> unmappedClientboundPacketTypes;
private final Map<State, PacketTypeMap<CM>> mappedClientboundPacketTypes;
private final Map<State, PacketTypeMap<SM>> mappedServerboundPacketTypes;
private final Map<State, PacketTypeMap<SU>> unmappedServerboundPacketTypes;
public SimplePacketTypesProvider(
Map<State, PacketTypeMap<CU>> unmappedClientboundPacketTypes,
Map<State, PacketTypeMap<CM>> mappedClientboundPacketTypes,
Map<State, PacketTypeMap<SM>> mappedServerboundPacketTypes,
Map<State, PacketTypeMap<SU>> unmappedServerboundPacketTypes
) {
this.unmappedClientboundPacketTypes = unmappedClientboundPacketTypes;
this.mappedClientboundPacketTypes = mappedClientboundPacketTypes;
this.mappedServerboundPacketTypes = mappedServerboundPacketTypes;
this.unmappedServerboundPacketTypes = unmappedServerboundPacketTypes;
}
@Override
public Map<State, PacketTypeMap<CU>> unmappedClientboundPacketTypes() {
return unmappedClientboundPacketTypes;
}
@Override
public Map<State, PacketTypeMap<CM>> mappedClientboundPacketTypes() {
return mappedClientboundPacketTypes;
}
@Override
public Map<State, PacketTypeMap<SM>> mappedServerboundPacketTypes() {
return mappedServerboundPacketTypes;
}
@Override
public Map<State, PacketTypeMap<SU>> unmappedServerboundPacketTypes() {
return unmappedServerboundPacketTypes;
}
}

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2023 ViaVersion and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.viaversion.viaversion.common.protocol.remapper;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.protocol.AbstractProtocol;
import com.viaversion.viaversion.api.protocol.AbstractProtocol.ProtocolPacket;
import com.viaversion.viaversion.api.protocol.Protocol;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
import com.viaversion.viaversion.common.dummy.DummyInitializer;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
public class ProtocolHandlersTest {
private static final Logger LOGGER = Logger.getGlobal();
private static final boolean WARN = false;
@BeforeAll
static void init() {
DummyInitializer.init();
}
@Test
void testHandlersSize() {
if (!WARN) {
return;
}
for (final Protocol<?, ?, ?, ?> protocol : Via.getManager().getProtocolManager().getProtocols()) {
if (!(protocol instanceof AbstractProtocol)) {
continue;
}
final AbstractProtocol<?, ?, ?, ?> abstractProtocol = (AbstractProtocol<?, ?, ?, ?>) protocol;
final List<ProtocolPacket> protocolMappings = new ArrayList<>(abstractProtocol.getClientbound().values());
protocolMappings.addAll(abstractProtocol.getServerbound().values());
for (final ProtocolPacket protocolMapping : protocolMappings) {
if (!(protocolMapping.getRemapper() instanceof PacketHandlers)) {
continue;
}
final PacketHandlers packetHandlers = (PacketHandlers) protocolMapping.getRemapper();
if (packetHandlers.handlersSize() == 0) {
LOGGER.warning("PacketHandlers instance has no handlers: " + protocolMapping + " in " + protocol.getClass().getSimpleName());
} else if (packetHandlers.handlersSize() == 1) {
LOGGER.warning("PacketHandlers instance only has a single handler; consider using a PacketHandler lambda instead of extending PacketHandlers: "
+ protocolMapping + " in " + protocol.getClass().getSimpleName());
}
}
}
}
}