I made my custom inventory GUI (extends GuiContainer). It uses mainInventory, but how can I access armorInventory? As I know Slot constructor takes an IInventory, slot index and position in pixels, but armorInventory is an ItemStack[].

https://github.com/MinecraftForge/MinecraftForge/tree/1.9/src/main/java/net/minecraftforge/items

 

yoo need to    ItemStack inv[] = playerIn.inventory.armorInventory

 

// #########################################################################3
public static ItemStack[] leerInventarioEntidad(Entity ent) {
	ItemStack inv[] = null;

	if (ent instanceof EntityPlayer) {
		EntityPlayer playerIn = (EntityPlayer) ent;

		// ItemStack dinv[] = playerIn.inventory.mainInventory;

		ItemStack dinv[] = ArrayUtils.addAll(playerIn.inventory.mainInventory, playerIn.inventory.armorInventory);
		dinv = ArrayUtils.addAll(dinv, playerIn.inventory.offHandInventory);

		for (int i = 36; i < 40; i++) {

			if (dinv[i] == null) {
				dinv[i] = new ItemStack(MMMateriales.materialesdummyNulo, 1, 0);
			}

		}

		return dinv;
	}

	return inv;
}