add covers that can hold some items

[Glease]

This cover allows player to store a small amount of item alongside a machine. The intended use case is for steam to EV player to store extruder shapes and alloy smelter shapes inside the machine. The cover GUI system would then allow player to retrieve the items right from the machine GUI. To facilitate this goal and not make this cover some generic diamond chest, the current line up impose a 1 item per stack limit.

While this demo showcased a 3-slot gui, the submitted PR contains a 3x3 cover instead. The code is structured in a way that the slot count can be tweaked freely without writing any significant code. Multiple cover with different slot count can also be added to game at the same time.

Depends on this bugfix PR in modular UI to work correctly, but does not require that one to be compiled.

New items added

Basic Item Holder: 9 slots. Each slot can only hold ONE item no matter what it is
Good Item Holder. 12 slots. Each slot can only hold ONE item no matter what it is
Advanced Item Holder. 15 slots. . Each slot can only hold ONE item no matter what it is

Screenshots

Task list

• basic implementation
• find item texture
• find cover texture (what is displayed when it's placed on a machine)
• determine the tiering
• ensure the meta item id isn't used by something else in fullpack
• try to make the window show up on the side when opened, instead of in the center
• Add recipes

[github-actions]

Warning: 2 uncommitted changes
#2594

[github-actions]

Warning: 2 uncommitted changes
#2595

[Dream-Master]

@Glease feel free to set it undraft when its done.

[Glease]

image credit @ wilybit on discord.
Unfortunately I'm unable to make the cover icon in gui to switch depending on whether the window is open without substantial refactor

[Nxer]

It will open a wrong UI when shift right click the cover side on machine block.

[Nxer]

And when break the machine block, the items in cover will drop in world, but re-place the machine(with these covers), there still are items in cover's inventory.

[YannickMG]

Only somewhat related: I always wished the crafting table cover held an inventory as that would've made it somewhat useful. As it is it behaves like a vanilla crafting table in that all items you place in it are expelled when you close the UI.

If you think it would make sense to upgrade the crafting table cover to hold an inventory then you might balance this new "chest cover" alongside it.

[github-actions]

Warning: 2 uncommitted changes
#2888

[Nxer]

Would it be convenient to add an player inventory UI when opening this UI ?

[Nxer]

Worked well. Good stuff for hand-crafting masters.