I'm trying to completely remove the inventory crafting matrix, meaning the 2x2 slots, the arrow, the "Crafting" text and the output slot.

I did a small test to see if it was possible to get the slots of the inventory. I also tried to remove the output slot, but realized very quickly that 

that was a bad idea, because the slot indices get all messed up.

(Here's the code for that)

@SubscribeEvent
	public void onGuiInit(GuiScreenEvent.InitGuiEvent.Post event)
	{
		if(event.getGui() instanceof GuiInventory)
		{
			GuiInventory inv = (GuiInventory) event.getGui();
			ContainerPlayer container = (ContainerPlayer) inv.inventorySlots;
			for(int i = 0; i < container.inventorySlots.size(); i++)
			{
				Slot s = container.inventorySlots.get(i);
				if(s instanceof SlotCrafting)
					container.inventorySlots.remove(i);
			}
		}
	}

 

I think I need to approach this differently. Do I need to make a custom inventory gui and container and then override the vanilla gui?

I'm afraid that that would cause severe incompatibilities with other mods though.

If anyone has any ideas, I'd be glad to hear them!

Good Idea with the replace, I actually moved them offscreen just before