Java tutorial
package de.paleocrafter.powergrid.network; import java.util.logging.Logger; import com.google.common.io.ByteArrayDataInput; import com.google.common.io.ByteStreams; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.entity.player.EntityPlayerMP; import net.minecraft.network.INetworkManager; import net.minecraft.network.packet.Packet250CustomPayload; import cpw.mods.fml.common.network.IPacketHandler; import cpw.mods.fml.common.network.NetworkRegistry; import cpw.mods.fml.common.network.Player; import cpw.mods.fml.relauncher.Side; import de.paleocrafter.powergrid.network.packet.PaleoPacket; import de.paleocrafter.powergrid.network.packet.PaleoPacket.ProtocolException; /** * * PaleoMachineFramework * * PaleoPacketHandler * * @author PaleoCrafter * @license Lesser GNU Public License v3 (http://www.gnu.org/licenses/lgpl.html) * */ public class PaleoPacketHandler implements IPacketHandler { public static String CHANNEL_NAME = "PowerGrid"; public static void registerChannel() { NetworkRegistry.instance().registerChannel(new PaleoPacketHandler(), CHANNEL_NAME); } @Override public void onPacketData(INetworkManager manager, Packet250CustomPayload packet, Player player) { try { EntityPlayer entityPlayer = (EntityPlayer) player; ByteArrayDataInput in = ByteStreams.newDataInput(packet.data); int packetId = in.readUnsignedByte(); PaleoPacket paleoPacket = PaleoPacket.constructPacket(packetId); paleoPacket.read(in); paleoPacket.execute(entityPlayer, entityPlayer.worldObj.isRemote ? Side.CLIENT : Side.SERVER); } catch (ProtocolException e) { if (player instanceof EntityPlayerMP) { ((EntityPlayerMP) player).playerNetServerHandler.kickPlayerFromServer("Protocol Exception!"); Logger.getLogger("PowerGrid") .warning("Player " + ((EntityPlayer) player).username + " caused a Protocol Exception!"); } } catch (ReflectiveOperationException e) { throw new RuntimeException("Unexpected Reflection exception during Packet construction!", e); } } }