Java tutorial
package gravestone.packets; import gravestone.tileentity.TileEntityGSGrave; import gravestone.tileentity.TileEntityGSMemorial; import io.netty.buffer.ByteBuf; import net.minecraft.tileentity.TileEntity; import net.minecraft.util.BlockPos; import net.minecraft.world.World; import net.minecraftforge.common.DimensionManager; import net.minecraftforge.fml.common.network.ByteBufUtils; 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 java.util.Random; /** * GraveStone mod * * @author NightKosh * @license Lesser GNU Public License v3 (http://www.gnu.org/licenses/lgpl.html) */ public class GraveDeathMessageToServer implements IMessage, IMessageHandler<GraveDeathMessageToServer, IMessage> { private int dimensionID; private int x; private int y; private int z; private String text; private boolean randomText; public GraveDeathMessageToServer() { } public GraveDeathMessageToServer(World world, int x, int y, int z, String text, boolean randomText) { this.dimensionID = world.provider.getDimensionId(); this.x = x; this.y = y; this.z = z; this.text = text; this.randomText = randomText; } @Override public void fromBytes(ByteBuf buf) { this.dimensionID = buf.readInt(); this.x = buf.readInt(); this.y = buf.readInt(); this.z = buf.readInt(); this.text = ByteBufUtils.readUTF8String(buf); this.randomText = buf.readBoolean(); } @Override public void toBytes(ByteBuf buf) { buf.writeInt(dimensionID); buf.writeInt(x); buf.writeInt(y); buf.writeInt(z); ByteBufUtils.writeUTF8String(buf, text); buf.writeBoolean(randomText); } @Override public IMessage onMessage(GraveDeathMessageToServer message, MessageContext ctx) { if (ctx.side.isServer()) { World world = DimensionManager.getWorld(message.dimensionID); if (world != null) { TileEntity te = world.getTileEntity(new BlockPos(message.x, message.y, message.z)); if (te != null && te instanceof TileEntityGSGrave) { TileEntityGSGrave tileEntity = (TileEntityGSGrave) te; if (message.randomText) { tileEntity.getDeathTextComponent().setRandomDeathTextAndName(new Random(), tileEntity.getGraveTypeNum(), tileEntity instanceof TileEntityGSMemorial, false); } else { tileEntity.getDeathTextComponent().setDeathText(message.text); } world.markBlockForUpdate(new BlockPos(message.x, message.y, message.z)); } } } return null; } }