Jump to content

Tile entity syncing problem


gcewing

Recommended Posts

I'm trying to send tile entity data from server to client using a scheme modelled on the one used by TileEntitySign. My TileEntity class has a getDescriptionPacket() method that returns a Packet250CustomPayload. When the client receives this, it finds its version of the tile entity and updates it.

 

Most of the time it works, but when the client initially connects to the server, some of my tile entity packets arrive before the Packet51MapChunk containing the corresponding block ID, so there is no tile entity there to update. If I create one of the appropriate type and put it there, it gets wiped out when the block ID arrives later.

 

Does anyone have any idea what I might be doing wrong? Are there any examples around that show how to do this correctly?

 

Code follows:

 

 

This is the code in my tile entity class:

 

public Packet getDescriptionPacket() {

return Utils.packetFromTileEntity(this);

}

In my Utils class:

 

public static Packet packetFromTileEntity(TileEntity te) {

NBTTagCompound tag = new NBTTagCompound();

te.writeToNBT(tag);

return packetFromNBT(0, tag);

}

 

public static Packet packetFromNBT(int type, NBTTagCompound tag) {

ByteArrayOutputStream bytes = new ByteArrayOutputStream();

DataOutputStream stream = new DataOutputStream(bytes);

try {

stream.write(type);

NBTBase.writeNamedTag(tag, stream);

}

catch (IOException e) {

throw new RuntimeException(e.toString());

}

byte[] data = bytes.toByteArray();

Packet250CustomPayload packet = new Packet250CustomPayload();

packet.channel = GregsBlocks.channelName;

packet.length = data.length;

packet.data = data;

return packet;

}

 

public static NBTTagCompound nbtFromPacket(Packet250CustomPayload pkt) {

DataInput stream = new DataInputStream(new ByteArrayInputStream(pkt.data, 1, pkt.length - 1));

try {

NBTBase tag = NBTBase.readNamedTag(stream);

return (NBTTagCompound)tag;

}

catch (IOException e) {

throw new RuntimeException(e.toString());

}

}

In the client side of my mod class:

 

public void receiveCustomPacket(Packet250CustomPayload pkt) {

int type = pkt.data[0];

switch (type) {

case 0:

handleTileEntityPacket(pkt);

break;

}

}

 

void handleTileEntityPacket(Packet250CustomPayload pkt) {

NBTTagCompound tag = Utils.nbtFromPacket(pkt);

int x = tag.getInteger("x");

int y = tag.getInteger("y");

int z = tag.getInteger("z");

World world = minecraft.theWorld;

if (world.blockExists(x, y, z)) {

TileEntity te = world.getBlockTileEntity(x, y, z);

if (te != null) {

te.readFromNBT(tag);

te.onInventoryChanged();

}

}

}

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.