Leaderboard

you can simply create a new instance and store it in a final field, then override addAdditionalSaveData and readAdditionalSaveData to serialize and deserialize the Inventory

in AttachCapabilitiesEvent you need a ICapabilityProvider which holds your Capability

Thank you for the help. I got it to work with packets. I'll put the code below for any future googlers @Override public void onUpdate() { setFuse(--this.fuse); if (getFuse() <= 0) { this.setDead(); if (!this.world.isRemote) { world.setBlockState(pos, Blocks.AIR.getDefaultState()); world.createExplosion(null, this.posX + 0.5D, this.posY + 0.5D, this.posZ + 0.5D, 4.f, true); } } else { ParticlePacket particlePacket = new ParticlePacket(this.posX, this.posY, this.posZ); NetworkRegistry.TargetPoint target = new TargetPoint(world.provider.getDimension(), this.posX + 0.5D, this.posY + 1.0D, this.posZ + 0.5D, 20.d); CommonProxy.simpleNetworkWrapper.sendToAllAround(particlePacket, target); } if(world.getBlockState(pos).getBlock() instanceof BlockAir) { this.setDead(); } } //Message and client handler public class ParticlePacket implements IMessage { private boolean messageValid; private double x, y, z; public ParticlePacket() { this.messageValid = false; } public ParticlePacket(double x, double y, double z) { this.x = x; this.y = y; this.z = z; this.messageValid = true; } @Override public void fromBytes(ByteBuf buf) { try { this.x = buf.readDouble(); this.y = buf.readDouble(); this.z = buf.readDouble(); } catch(IndexOutOfBoundsException ioe) { return; } } @Override public void toBytes(ByteBuf buf) { if(!this.messageValid) return; buf.writeDouble(x); buf.writeDouble(y); buf.writeDouble(z); } public static class Handler implements IMessageHandler<ParticlePacket, IMessage> { @Override public IMessage onMessage(ParticlePacket message, MessageContext ctx) { if(!message.messageValid && ctx.side != Side.CLIENT) { return null; } Minecraft minecraft = Minecraft.getMinecraft(); final WorldClient worldClient = minecraft.world; minecraft.addScheduledTask(() -> processMessage(message, worldClient)); return null; } void processMessage(ParticlePacket message, WorldClient worldClient) { worldClient.spawnParticle(EnumParticleTypes.SMOKE_NORMAL, message.x + 0.5D, message.y + 1.0D, message.z + 0.5D, 0.0D, 0.0D, 0.0D); } } } //ClientProxy public static void preInitClientOnly() { CommonProxy.simpleNetworkWrapper.registerMessage(ParticlePacket.Handler.class, ParticlePacket.class, CommonProxy.FUSE_SMOKE, Side.CLIENT); } //CommonProxy public static final byte FUSE_SMOKE = 88; public static SimpleNetworkWrapper simpleNetworkWrapper; public static void preInitCommon() { simpleNetworkWrapper = NetworkRegistry.INSTANCE.newSimpleChannel("TestChannel"); simpleNetworkWrapper.registerMessage(ServerHandlerDummy.class, ParticlePacket.class, FUSE_SMOKE, Side.SERVER); } //Server handler public class ServerHandlerDummy implements IMessageHandler<ParticlePacket, IMessage> { @Override public IMessage onMessage(ParticlePacket message, MessageContext ctx) { return null; } }