2014-09-23 05:01:24 +00:00
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package net.minecraftforge.fml.common.network;
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2014-01-12 18:20:41 +00:00
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2014-01-20 21:02:26 +00:00
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import io.netty.channel.ChannelFutureListener;
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2014-01-12 18:20:41 +00:00
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import io.netty.channel.ChannelHandlerContext;
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2014-09-23 05:01:24 +00:00
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2014-01-12 18:20:41 +00:00
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import java.util.EnumMap;
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2014-09-23 05:01:24 +00:00
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2014-01-12 18:20:41 +00:00
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import net.minecraft.client.network.NetHandlerPlayClient;
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import net.minecraft.entity.player.EntityPlayerMP;
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import net.minecraft.network.NetHandlerPlayServer;
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2014-09-23 05:01:24 +00:00
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import net.minecraftforge.fml.common.FMLCommonHandler;
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import net.minecraftforge.fml.common.eventhandler.EventBus;
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import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
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import net.minecraftforge.fml.common.network.internal.FMLProxyPacket;
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import net.minecraftforge.fml.relauncher.Side;
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2014-01-12 18:20:41 +00:00
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2014-02-05 01:01:44 +00:00
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/**
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* An event driven network channel, using {@link FMLNetworkEvent.CustomPacketEvent} and {@link FMLNetworkEvent.CustomNetworkEvent}
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* to deliver messages to an event listener. There is one "bus" for each channel, due to the
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* impossibility of filtering a bus for specific events.
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*
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* This event driven system completely wraps the netty code. Mod code deals with FMLProxyPackets directly. It is not
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* possible to enhance the netty pipeline, and I would expect highly unexpected results if it were modified reflectively.
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* Use a real ChannelHandler if you want to use netty.
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*
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* @author cpw
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*
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*/
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2014-01-12 18:20:41 +00:00
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public class FMLEventChannel {
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private EnumMap<Side, FMLEmbeddedChannel> channels;
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private EventBus eventBus;
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2014-02-05 01:01:44 +00:00
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/*
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* This is done this way so that the CLIENT specific code in the factory only loads on the client
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*/
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private enum EventFactory
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{
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SERVER()
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{
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@Override
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FMLNetworkEvent.CustomPacketEvent<?> make(FMLProxyPacket msg)
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{
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FMLNetworkEvent.CustomPacketEvent<?> event = null;
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if (msg.handler() instanceof NetHandlerPlayServer)
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{
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NetHandlerPlayServer server = (NetHandlerPlayServer) msg.handler();
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2014-09-20 00:24:36 +00:00
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event = new FMLNetworkEvent.ServerCustomPacketEvent(server.getNetworkManager(), msg);
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2014-02-05 01:01:44 +00:00
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}
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return event;
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}
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},
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CLIENT()
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{
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@Override
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FMLNetworkEvent.CustomPacketEvent<?> make(FMLProxyPacket msg)
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{
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FMLNetworkEvent.CustomPacketEvent<?> event = null;
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if (msg.handler() instanceof NetHandlerPlayClient)
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{
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NetHandlerPlayClient client = (NetHandlerPlayClient) msg.handler();
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2014-03-19 07:15:53 +00:00
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event = new FMLNetworkEvent.ClientCustomPacketEvent(client.getNetworkManager(), msg);
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2014-02-05 01:01:44 +00:00
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}
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else if (msg.handler() instanceof NetHandlerPlayServer)
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{
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NetHandlerPlayServer server = (NetHandlerPlayServer) msg.handler();
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2014-09-20 00:24:36 +00:00
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event = new FMLNetworkEvent.ServerCustomPacketEvent(server.getNetworkManager(), msg);
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2014-02-05 01:01:44 +00:00
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}
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return event;
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}
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};
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abstract FMLNetworkEvent.CustomPacketEvent<?> make(FMLProxyPacket msg);
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}
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private static EventFactory factory = FMLCommonHandler.instance().getSide() == Side.CLIENT ? EventFactory.CLIENT : EventFactory.SERVER;
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2014-01-12 18:20:41 +00:00
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FMLEventChannel(String name)
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{
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this.channels = NetworkRegistry.INSTANCE.newChannel(name, new NetworkEventFiringHandler(this));
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this.eventBus = new EventBus();
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}
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2014-02-05 01:01:44 +00:00
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/**
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* Register an event listener with this channel and bus. See {@link SubscribeEvent}
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*
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* @param object
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*/
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2014-01-12 18:20:41 +00:00
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public void register(Object object)
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{
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this.eventBus.register(object);
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}
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2014-02-05 01:01:44 +00:00
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/**
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* Unregister an event listener from the bus.
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* @param object
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*/
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2014-01-12 18:20:41 +00:00
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public void unregister(Object object)
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{
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this.eventBus.unregister(object);
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}
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void fireRead(FMLProxyPacket msg, ChannelHandlerContext ctx)
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{
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2014-02-05 01:01:44 +00:00
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FMLNetworkEvent.CustomPacketEvent<?> event = factory.make(msg);
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2014-01-12 18:20:41 +00:00
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if (event != null)
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{
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this.eventBus.post(event);
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2016-03-24 08:44:52 +00:00
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if (event.getReply() != null)
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2014-01-12 18:20:41 +00:00
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{
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ctx.channel().attr(FMLOutboundHandler.FML_MESSAGETARGET).set(FMLOutboundHandler.OutboundTarget.REPLY);
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2016-03-24 08:44:52 +00:00
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ctx.writeAndFlush(event.getReply()).addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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2014-01-12 18:20:41 +00:00
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}
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}
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}
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2014-01-20 16:58:14 +00:00
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public void fireUserEvent(Object evt, ChannelHandlerContext ctx)
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{
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FMLNetworkEvent.CustomNetworkEvent event = new FMLNetworkEvent.CustomNetworkEvent(evt);
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this.eventBus.post(event);
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}
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2014-02-05 01:01:44 +00:00
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/**
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* Send a packet to all on the server
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*
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* @param pkt
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*/
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2014-01-12 18:20:41 +00:00
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public void sendToAll(FMLProxyPacket pkt)
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{
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channels.get(Side.SERVER).attr(FMLOutboundHandler.FML_MESSAGETARGET).set(FMLOutboundHandler.OutboundTarget.ALL);
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2014-01-20 21:02:26 +00:00
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channels.get(Side.SERVER).writeAndFlush(pkt).addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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2014-01-12 18:20:41 +00:00
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}
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2014-02-05 01:01:44 +00:00
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/**
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* Send to a specific player
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*
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* @param pkt
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* @param player
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*/
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2014-01-12 18:20:41 +00:00
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public void sendTo(FMLProxyPacket pkt, EntityPlayerMP player)
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{
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channels.get(Side.SERVER).attr(FMLOutboundHandler.FML_MESSAGETARGET).set(FMLOutboundHandler.OutboundTarget.PLAYER);
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channels.get(Side.SERVER).attr(FMLOutboundHandler.FML_MESSAGETARGETARGS).set(player);
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2014-01-20 21:02:26 +00:00
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channels.get(Side.SERVER).writeAndFlush(pkt).addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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2014-01-12 18:20:41 +00:00
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}
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2014-02-05 01:01:44 +00:00
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/**
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* Send to all around a point
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* @param pkt
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* @param point
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*/
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2014-01-12 18:20:41 +00:00
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public void sendToAllAround(FMLProxyPacket pkt, NetworkRegistry.TargetPoint point)
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{
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channels.get(Side.SERVER).attr(FMLOutboundHandler.FML_MESSAGETARGET).set(FMLOutboundHandler.OutboundTarget.ALLAROUNDPOINT);
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channels.get(Side.SERVER).attr(FMLOutboundHandler.FML_MESSAGETARGETARGS).set(point);
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2014-01-20 21:02:26 +00:00
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channels.get(Side.SERVER).writeAndFlush(pkt).addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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2014-01-12 18:20:41 +00:00
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}
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2014-02-05 01:01:44 +00:00
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/**
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* Send to all in a dimension
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* @param pkt
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* @param dimensionId
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*/
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2014-01-12 18:20:41 +00:00
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public void sendToDimension(FMLProxyPacket pkt, int dimensionId)
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{
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channels.get(Side.SERVER).attr(FMLOutboundHandler.FML_MESSAGETARGET).set(FMLOutboundHandler.OutboundTarget.DIMENSION);
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channels.get(Side.SERVER).attr(FMLOutboundHandler.FML_MESSAGETARGETARGS).set(dimensionId);
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2014-01-20 21:02:26 +00:00
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channels.get(Side.SERVER).writeAndFlush(pkt).addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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2014-01-12 18:20:41 +00:00
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}
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2014-02-05 01:01:44 +00:00
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/**
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* Send to the server
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* @param pkt
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*/
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2014-01-12 18:20:41 +00:00
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public void sendToServer(FMLProxyPacket pkt)
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{
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channels.get(Side.CLIENT).attr(FMLOutboundHandler.FML_MESSAGETARGET).set(FMLOutboundHandler.OutboundTarget.TOSERVER);
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2014-01-20 21:02:26 +00:00
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channels.get(Side.CLIENT).writeAndFlush(pkt).addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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2014-01-12 18:20:41 +00:00
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}
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}
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