Hopper-like TileEntity?

[skyress3000]

I was wondering how to make a block/tileentity behave like a hopper in the sense that it can test for entities directly above it and then modify said entities. I looked through the TileEntityHopper class but didn't find anything understandable, most of the stuff in there is completely unlabeled.

[skyress3000]

hmmm… could this be relevant?

I'll look to where this is called...

 

public static EntityItem func_145897_a(World p_145897_0_, double p_145897_1_, double p_145897_3_, double p_145897_5_)

    {

        List list = p_145897_0_.selectEntitiesWithinAABB(EntityItem.class, AxisAlignedBB.getAABBPool().getAABB(p_145897_1_, p_145897_3_, p_145897_5_, p_145897_1_ + 1.0D, p_145897_3_ + 1.0D, p_145897_5_ + 1.0D), IEntitySelector.selectAnything);

        return list.size() > 0 ? (EntityItem)list.get(0) : null;

    }

[skyress3000]

here's some insight: func_145891_a is called. Somewhere in there, func_145897 is called. If there is an EntityItem returned, func_145898 is called, which adds the item to the hopper's inventory and destroys the item. Can someone explain to me what the rest of func_145891 is for, and when it would be called? Here's the source of func_145891:

 

public static boolean func_145891_a(IHopper p_145891_0_)

    {

        IInventory iinventory = func_145884_b(p_145891_0_);

 

        if (iinventory != null)

        {

            byte b0 = 0;

 

            if (iinventory instanceof ISidedInventory && b0 > -1)

            {

                ISidedInventory isidedinventory = (ISidedInventory)iinventory;

                int[] aint = isidedinventory.getAccessibleSlotsFromSide(b0);

 

                for (int k = 0; k < aint.length; ++k)

                {

                    if (func_145892_a(p_145891_0_, iinventory, aint[k], b0))

                    {

                        return true;

                    }

                }

            }

            else

            {

                int i = iinventory.getSizeInventory();

 

                for (int j = 0; j < i; ++j)

                {

                    if (func_145892_a(p_145891_0_, iinventory, j, b0))

                    {

                        return true;

                    }

                }

            }

        }

        else

        {

            EntityItem entityitem = func_145897_a(p_145891_0_.getWorldObj(), p_145891_0_.getXPos(), p_145891_0_.getYPos() + 1.0D, p_145891_0_.getZPos());

 

            if (entityitem != null)

            {

                return func_145898_a(p_145891_0_, entityitem);

            }

        }

 

        return false;

    }

 

nvm, the rest is for if there's a chest or other thing with an inventory above it. also, I just discovered how to modify posts