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TileEntity passed to TileEntitySpecialRenderer does not contain full information


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I want to render my TileEntity in a special way, so when there is an Item in a specific slot I want to render a cube representing that item in the model. When checking for the item using the following function:


public boolean getHasItemInSlot(int slot) {

  return itemStacks[slot] != null && (itemStacks[slot].stackSize > 0);



it always returns false. Even when taking the coordinates from the tileEntity (which ARE valid) it ALWAYS returns false.


TileEntitySpecialRenderer class: https://github.com/rhbvkleef/requiredstuffz/blob/master/src/main/java/tk/yteditors/requiredstuffz/renderer/TileEntityOvenRenderer.java

TileEntity class: https://github.com/rhbvkleef/requiredstuffz/blob/master/src/main/java/tk/yteditors/requiredstuffz/tileEntity/TileEntityOven.java

Github repo: https://github.com/rhbvkleef/requiredstuffz

Check out my mod!

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If your inventory is not being access via a Container, then you must notify the client manually of any changes to your TileEntity's data state; this is most easily done by using the combination of your TE's read/write NBT methods (provided you implemented them correctly) and overriding getDescriptionPacket and onDataPacket:

public Packet getDescriptionPacket() {
NBTTagCompound tag = new NBTTagCompound();
return new S35PacketUpdateTileEntity(xCoord, yCoord, zCoord, 1, tag);

public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity packet) {


If your TileEntity has a lot of data being saved to NBT, then you should consider only sending the information you require, e.g. writing only the one ItemStack to the tag compound being sent in the packet, and adjusting onDataPacket accordingly.

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Adding the functions onDataPacket and getDescriptionPacket and adding the code you showed into them, it still does not work, and I still get a FALSE return.


After adding some loggers, it looks like the functions onDataPacket and getDescriptionPacket are never called. After restarting the world, the model renders correctly.

Check out my mod!

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Since this tile-entity only has 2 slots, 2 integers and 1 boolean stored in NBT, I think it is fair to send all of these values to the client, since I am checking 1 slot and 1 boolean for the rendering. The block now renders properly as well :)

Check out my mod!

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