Java tutorial
package com.yyon.grapplinghook.network; import io.netty.buffer.ByteBuf; import net.minecraft.client.Minecraft; import net.minecraft.entity.Entity; import net.minecraft.util.IThreadListener; import net.minecraft.util.math.BlockPos; import net.minecraft.world.World; import net.minecraftforge.fml.common.network.simpleimpl.IMessage; import net.minecraftforge.fml.common.network.simpleimpl.IMessageHandler; import net.minecraftforge.fml.common.network.simpleimpl.MessageContext; import com.yyon.grapplinghook.grapplemod; import com.yyon.grapplinghook.vec; import com.yyon.grapplinghook.entities.grappleArrow; /* * This file is part of GrappleMod. GrappleMod 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. GrappleMod 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 GrappleMod. If not, see <http://www.gnu.org/licenses/>. */ public class GrappleAttachMessage implements IMessage { public int id; public double x; public double y; public double z; public int controlid; public int entityid; public int maxlen; public BlockPos blockpos; public GrappleAttachMessage() { } public GrappleAttachMessage(int id, double x, double y, double z, int controlid, int entityid, int maxlen, BlockPos blockpos) { this.id = id; this.x = x; this.y = y; this.z = z; this.controlid = controlid; this.entityid = entityid; this.maxlen = maxlen; this.blockpos = blockpos; } @Override public void fromBytes(ByteBuf buf) { this.id = buf.readInt(); this.x = buf.readDouble(); this.y = buf.readDouble(); this.z = buf.readDouble(); this.controlid = buf.readInt(); this.entityid = buf.readInt(); this.maxlen = buf.readInt(); int blockx = buf.readInt(); int blocky = buf.readInt(); int blockz = buf.readInt(); this.blockpos = new BlockPos(blockx, blocky, blockz); } @Override public void toBytes(ByteBuf buf) { buf.writeInt(this.id); buf.writeDouble(this.x); buf.writeDouble(this.y); buf.writeDouble(this.z); buf.writeInt(this.controlid); buf.writeInt(this.entityid); buf.writeInt(this.maxlen); buf.writeInt(this.blockpos.getX()); buf.writeInt(this.blockpos.getY()); buf.writeInt(this.blockpos.getZ()); } public static class Handler implements IMessageHandler<GrappleAttachMessage, IMessage> { public class runner implements Runnable { GrappleAttachMessage message; MessageContext ctx; public runner(GrappleAttachMessage message, MessageContext ctx) { super(); this.message = message; this.ctx = ctx; } @Override public void run() { World world = Minecraft.getMinecraft().theWorld; Entity grapple = world.getEntityByID(message.id); if (grapple instanceof grappleArrow) { ((grappleArrow) grapple).clientAttach(message.x, message.y, message.z); } else { } grapplemod.createControl(message.controlid, message.id, message.entityid, world, new vec(message.x, message.y, message.z), message.maxlen, message.blockpos); } } @Override public IMessage onMessage(GrappleAttachMessage message, MessageContext ctx) { IThreadListener mainThread = Minecraft.getMinecraft(); mainThread.addScheduledTask(new runner(message, ctx)); return null; } } }