How do I get a menu provider for a player's inventory and enderchest? I believe the function to call to do this is player.openMenu(). I just don't know how to get or create a menu provider. The purpose of this is to add commands /enderchest and /invsee !

you should use NetworkHooks#openGui, you need to create a new MenuProvider (use SimpleMenuProvider)

14 hours ago, diesieben07 said:

Only for modded containers.

Have you looked at the interface? It is very simple. Like Luis said, you can just SimpleMenuProvider.

Note however that there is no MenuType for the inventory menu and it cannot be opened from the server.

I don't understand where or how to create/find the MenuConstructor. Sorry, I am just not understanding, how to transform the player's enderchestinventory into a menu constructor.

Look how vanilla opens the enderchest of the player

On 9/16/2021 at 11:20 PM, Luis_ST said:

Look how vanilla opens the enderchest of the player

Where can I see this in the vanilla files?

30 minutes ago, X_ZombieSlayer_X said:

Where can I see this in the vanilla files?

If you're using IntelliJ, under External Libraries and then under Gradle: net.minecrafforge:forge:1.17.1-<Forge Versin>_mapped_<Mappings>

if you are using Eclipse, you will find the vanilla code in Your Workspace Folder (in Eclipse) > Project and External Dependencies > forge_version > package net.minecraft
then you need to look at the EnderChestBlock, another way to find the class would be to search for it via CTRL + SHIFT + H (Note this is the Eclipse key shortcut).

21 hours ago, uSkizzik said:

If you're using IntelliJ, under External Libraries and then under Gradle: net.minecrafforge:forge:1.17.1-<Forge Versin>_mapped_<Mappings>

20 hours ago, Luis_ST said:

another way to find the class would be to search for it

The IntelliJ shortcut to search is CTRL + N (by default)