When I open my gui (using player.openGui() which calls the GuiHandler, that part works) I am trying to get the Tile Entity of the block that I'm aiming at. The GuiHandler recognizes that the Tile entity is an instance of my custom tile entity, however when I try to get data that's stored on the tile, I always get the default values of the tile, even if they're changed.

 

My code:

The GuiHandler

@Override
public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
TileEntity tile = world.getTileEntity(new BlockPos(x, y, z));
if (player != null) {
	if (ID == Reference.Guis.ElevatorLarge.getID() && tile instanceof TileEntityElevator) {
                        TileEntityElevator elevator = (TileEntityElevator) tile;
                        logger.log(tile.getYUp()) //This line always gives 0, even if there is a value stored in the TileEntityElevator.
		return new GuiElevator(world, new BlockPos(x, y, z));
	}
}
return null;
}

 

I hope this is enough information to find the problem... Thanks in advance!

The client and server have separate instances of your

TileEntity

. The server's data is only synced to the client if you include it in the update tag/packet.

 

Override

TileEntity#getUpdateTag

to write the data that needs syncing to a compound tag and return it. Override

TileEntity#getUpdatePacket

to create and return an

SPacketUpdateTileEntity

using the compound tag returned by

TileEntity#getUpdateTag

. Override

TileEntity#onDataPacket

to read the

TileEntity

's data from the packet's compound tag.

Wow, that actually worked on the first time! 

Thanks a lot! I still have a few things I need to learn about client-server handling - what happens automatically and what doesn't (for example: this  )

Thanks!