/cfinditem: Add --search-entities flag to search inventories of nearby entities

[James103]

Currently, when you are near an entity and you run /cfinditem, it won't search the inventory of that entity. Some people store their items in an entity's inventory (e.g. a minecart chest), which can easily lead to longer search times because entity inventories are not searchable yet using /cfinditem.

I suggest adding in a --search-entities flag to /cfinditem, that will search the inventories of the following:

• Yourself (Inventory)
• Armor Stands (all, HandItems and ArmorItems)
• Item Frames (all, Item)
• Minecart with Chest (within player reach, Items)
• Minecart with Hopper (within player reach, Items)
• Donkeys (within player reach, Items)
• Llamas (within player reach, Items)

When the specified item is found in one of those inventories, it should at at least print the following (or something similar): <count>x <item> found inside <entity> at <coordinates>

[xpple]

You could also look in inventories of other players, though you'd only be able to see their armour, main hand and off hand.

[James103]

A filter could be applied to the --search-entities flag, creating syntax like the following:

/cfinditem --search-entities @e[type=minecraft:horse] minecraft:stone_bricks

Where @e[type=minecraft:horse] is the entity selector that selects which entities to search the inventory contents of, and minecraft:stone_bricks is the item to search for inside the inventories of the selected entities.

For example, if you wanted to know if you have a Totem of Undying in your inventory, you can run /cfinditem --search-entities @p minecraft:totem_of_undying.