PacketEventsClient.java
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package com.mumfrey.liteloader.client;
import com.mojang.realmsclient.dto.RealmsServer;
import com.mumfrey.liteloader.*;
import com.mumfrey.liteloader.common.ducks.IChatPacket;
import com.mumfrey.liteloader.common.transformers.PacketEventInfo;
import com.mumfrey.liteloader.core.ClientPluginChannels;
import com.mumfrey.liteloader.core.InterfaceRegistrationDelegate;
import com.mumfrey.liteloader.core.LiteLoader;
import com.mumfrey.liteloader.core.LiteLoaderEventBroker.ReturnValue;
import com.mumfrey.liteloader.core.PacketEvents;
import com.mumfrey.liteloader.core.event.EventCancellationException;
import com.mumfrey.liteloader.core.event.HandlerList;
import com.mumfrey.liteloader.core.event.HandlerList.ReturnLogicOp;
import com.mumfrey.liteloader.core.runtime.Packets;
import com.mumfrey.liteloader.interfaces.FastIterableDeque;
import com.mumfrey.liteloader.util.ChatUtilities;
import com.mumfrey.liteloader.util.log.LiteLoaderLogger;
import net.minecraft.client.Minecraft;
import net.minecraft.network.INetHandler;
import net.minecraft.network.Packet;
import net.minecraft.network.login.INetHandlerLoginClient;
import net.minecraft.network.login.server.S02PacketLoginSuccess;
import net.minecraft.network.play.INetHandlerPlayClient;
import net.minecraft.network.play.server.S01PacketJoinGame;
import net.minecraft.network.play.server.S02PacketChat;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.IChatComponent;
import net.minecraft.util.IThreadListener;
/**
* Client-side packet event handlers
*
* @author Adam Mummery-Smith
*/
public class PacketEventsClient extends PacketEvents
{
private static RealmsServer joiningRealm;
private FastIterableDeque<JoinGameListener> joinGameListeners = new HandlerList<JoinGameListener>(JoinGameListener.class);
private FastIterableDeque<ChatListener> chatListeners = new HandlerList<ChatListener>(ChatListener.class);
private FastIterableDeque<ChatFilter> chatFilters = new HandlerList<ChatFilter>(ChatFilter.class,
ReturnLogicOp.AND_BREAK_ON_FALSE);
private FastIterableDeque<PreJoinGameListener> preJoinGameListeners = new HandlerList<PreJoinGameListener>(PreJoinGameListener.class,
ReturnLogicOp.AND_BREAK_ON_FALSE);
private FastIterableDeque<PostLoginListener> postLoginListeners = new HandlerList<PostLoginListener>(PostLoginListener.class);
@Override
public void registerInterfaces(InterfaceRegistrationDelegate delegate)
{
super.registerInterfaces(delegate);
delegate.registerInterface(JoinGameListener.class);
delegate.registerInterface(ChatListener.class);
delegate.registerInterface(ChatFilter.class);
delegate.registerInterface(PreJoinGameListener.class);
delegate.registerInterface(PostLoginListener.class);
}
/**
* @param joinGameListener
*/
public void registerJoinGameListener(JoinGameListener joinGameListener)
{
this.joinGameListeners.add(joinGameListener);
}
/**
* @param chatFilter
*/
public void registerChatFilter(ChatFilter chatFilter)
{
this.chatFilters.add(chatFilter);
}
/**
* @param chatListener
*/
public void registerChatListener(ChatListener chatListener)
{
if (chatListener instanceof ChatFilter)
{
LiteLoaderLogger.warning("Interface error initialising mod '%1s'. A mod implementing ChatFilter and ChatListener is not supported! "
+ "Remove one of these interfaces", chatListener.getName());
}
else
{
this.chatListeners.add(chatListener);
}
}
/**
* @param joinGameListener
*/
public void registerPreJoinGameListener(PreJoinGameListener joinGameListener)
{
this.preJoinGameListeners.add(joinGameListener);
}
/**
* @param postLoginListener
*/
public void registerPostLoginListener(PostLoginListener postLoginListener)
{
this.postLoginListeners.add(postLoginListener);
}
public static void onJoinRealm(long serverId, RealmsServer server)
{
PacketEventsClient.joiningRealm = server;
}
@Override
protected IThreadListener getPacketContextListener(Packets.Context context)
{
if (context == Packets.Context.SERVER)
{
return MinecraftServer.getServer();
}
return Minecraft.getMinecraft();
}
/* (non-Javadoc)
* @see com.mumfrey.liteloader.core.PacketEvents#handlePacket(
* com.mumfrey.liteloader.common.transformers.PacketEventInfo,
* net.minecraft.network.INetHandler,
* net.minecraft.network.play.server.S01PacketJoinGame)
*/
@Override
protected void handlePacket(PacketEventInfo<Packet> e, INetHandler netHandler, S01PacketJoinGame packet)
{
if (this.preJoinGame(e, netHandler, packet))
{
return;
}
((INetHandlerPlayClient)netHandler).handleJoinGame(packet);
super.handlePacket(e, netHandler, packet);
this.postJoinGame(e, netHandler, packet);
}
/**
* @param e
* @param netHandler
* @param packet
* @throws EventCancellationException
*/
private boolean preJoinGame(PacketEventInfo<Packet> e, INetHandler netHandler, S01PacketJoinGame packet) throws EventCancellationException
{
if (!(netHandler instanceof INetHandlerPlayClient))
{
return true;
}
e.cancel();
return !this.preJoinGameListeners.all().onPreJoinGame(netHandler, packet);
}
/**
* @param e
* @param netHandler
* @param packet
*/
private void postJoinGame(PacketEventInfo<Packet> e, INetHandler netHandler, S01PacketJoinGame packet)
{
this.joinGameListeners.all().onJoinGame(netHandler, packet, Minecraft.getMinecraft().getCurrentServerData(), PacketEventsClient.joiningRealm);
PacketEventsClient.joiningRealm = null;
ClientPluginChannels clientPluginChannels = LiteLoader.getClientPluginChannels();
if (clientPluginChannels instanceof ClientPluginChannelsClient)
{
((ClientPluginChannelsClient)clientPluginChannels).onJoinGame(netHandler, packet);
}
}
/* (non-Javadoc)
* @see com.mumfrey.liteloader.core.PacketEvents#handlePacket(
* com.mumfrey.liteloader.common.transformers.PacketEventInfo,
* net.minecraft.network.INetHandler,
* net.minecraft.network.login.server.S02PacketLoginSuccess)
*/
@Override
protected void handlePacket(PacketEventInfo<Packet> e, INetHandler netHandler, S02PacketLoginSuccess packet)
{
if (netHandler instanceof INetHandlerLoginClient)
{
INetHandlerLoginClient netHandlerLoginClient = (INetHandlerLoginClient)netHandler;
ClientPluginChannels clientPluginChannels = LiteLoader.getClientPluginChannels();
if (clientPluginChannels instanceof ClientPluginChannelsClient)
{
((ClientPluginChannelsClient)clientPluginChannels).onPostLogin(netHandlerLoginClient, packet);
}
this.postLoginListeners.all().onPostLogin(netHandlerLoginClient, packet);
}
}
/* (non-Javadoc)
* @see com.mumfrey.liteloader.core.PacketEvents#handlePacket(
* com.mumfrey.liteloader.common.transformers.PacketEventInfo,
* net.minecraft.network.INetHandler,
* net.minecraft.network.play.server.S02PacketChat)
*/
@Override
protected void handlePacket(PacketEventInfo<Packet> e, INetHandler netHandler, S02PacketChat packet)
{
if (packet.getChatComponent() == null)
{
return;
}
IChatComponent originalChat = packet.getChatComponent();
IChatComponent chat = originalChat;
String message = chat.getFormattedText();
// Chat filters get a stab at the chat first, if any filter returns false the chat is discarded
for (ChatFilter chatFilter : this.chatFilters)
{
ReturnValue<IChatComponent> ret = new ReturnValue<IChatComponent>();
if (chatFilter.onChat(chat, message, ret))
{
if (ret.isSet())
{
chat = ret.get();
if (chat == null)
{
chat = new ChatComponentText("");
}
message = chat.getFormattedText();
}
}
else
{
e.cancel();
return;
}
}
if (chat != originalChat)
{
try
{
chat = ChatUtilities.convertLegacyCodes(chat);
((IChatPacket)packet).setChatComponent(chat);
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
// Chat listeners get the chat if no filter removed it
this.chatListeners.all().onChat(chat, message);
}
}