ironbarrels/src/main/java/cpw/mods/ironchest/PacketHandler.java

132 lines
4.6 KiB
Java

/*******************************************************************************
* Copyright (c) 2012 cpw.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
*
* Contributors:
* cpw - initial API and implementation
******************************************************************************/
package cpw.mods.ironchest;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import java.util.EnumMap;
import net.minecraft.network.Packet;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;
import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.network.FMLEmbeddedChannel;
import cpw.mods.fml.common.network.FMLIndexedMessageToMessageCodec;
import cpw.mods.fml.common.network.NetworkRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
public enum PacketHandler {
INSTANCE;
private EnumMap<Side, FMLEmbeddedChannel> channels;
private PacketHandler()
{
this.channels = NetworkRegistry.INSTANCE.newChannel("IronChest", new IronChestCodec());
if (FMLCommonHandler.instance().getSide() == Side.CLIENT)
{
addClientHandler();
}
}
@SideOnly(Side.CLIENT)
private void addClientHandler() {
FMLEmbeddedChannel clientChannel = this.channels.get(Side.CLIENT);
String codec = clientChannel.findChannelHandlerNameForType(IronChestCodec.class);
clientChannel.pipeline().addAfter(codec, "ClientHandler", new IronChestMessageHandler());
}
private static class IronChestMessageHandler extends SimpleChannelInboundHandler<IronChestMessage>
{
@Override
protected void channelRead0(ChannelHandlerContext ctx, IronChestMessage msg) throws Exception
{
World world = IronChest.proxy.getClientWorld();
TileEntity te = world.getTileEntity(msg.x, msg.y, msg.z);
if (te instanceof TileEntityIronChest)
{
TileEntityIronChest icte = (TileEntityIronChest) te;
icte.setFacing(msg.facing);
icte.handlePacketData(msg.type, msg.items);
}
}
}
public static class IronChestMessage
{
int x;
int y;
int z;
int type;
int facing;
int[] items;
}
private class IronChestCodec extends FMLIndexedMessageToMessageCodec<IronChestMessage>
{
public IronChestCodec()
{
addDiscriminator(0, IronChestMessage.class);
}
@Override
public void encodeInto(ChannelHandlerContext ctx, IronChestMessage msg, ByteBuf target) throws Exception
{
target.writeInt(msg.x);
target.writeInt(msg.y);
target.writeInt(msg.z);
int typeAndFacing = ((msg.type & 0x0F) | ((msg.facing & 0x0F) << 4)) & 0xFF;
target.writeByte(typeAndFacing);
target.writeBoolean(msg.items != null);
if (msg.items != null)
{
int[] items = msg.items;
for (int j = 0; j < items.length; j++)
{
int i = items[j];
target.writeInt(i);
}
}
}
@Override
public void decodeInto(ChannelHandlerContext ctx, ByteBuf dat, IronChestMessage msg)
{
msg.x = dat.readInt();
msg.y = dat.readInt();
msg.z = dat.readInt();
int typDat = dat.readByte();
msg.type = (byte)(typDat & 0xf);
msg.facing = (byte)((typDat >> 4) & 0xf);
boolean hasStacks = dat.readBoolean();
msg.items = new int[0];
if (hasStacks)
{
msg.items = new int[24];
for (int i = 0; i < msg.items.length; i++)
{
msg.items[i] = dat.readInt();
}
}
}
}
public static Packet getPacket(TileEntityIronChest tileEntityIronChest)
{
IronChestMessage msg = new IronChestMessage();
msg.x = tileEntityIronChest.xCoord;
msg.y = tileEntityIronChest.yCoord;
msg.z = tileEntityIronChest.zCoord;
msg.type = tileEntityIronChest.getType().ordinal();
msg.facing = tileEntityIronChest.getFacing();
msg.items = tileEntityIronChest.buildIntDataList();
return INSTANCE.channels.get(Side.SERVER).generatePacketFrom(msg);
}
}