[question] sfinv modding questions

[Extex]

OK so I'm making a mod with a new sfinv inventory page, with two item slots; and I only want items with a specific group to be allowed in these slots.
How would I do this?

Code: Select all

sfinv.register_page("rings:ring_page", {
	title = "Rings",
	get = function(self, player, context)
		return sfinv.make_formspec(player, context,
				"list[current_player;ring_slots;1.75,0.5;1,2;]",
			 true)
	end,
})

And I only want items with the group "ring" to be allowed in the slots

[Krock]

I only want items with a specific group to be allowed in these slots.

And I only want items with the group "ring" to be allowed in the slots

First is possible, latter done by the rule given for the first request.

Since Minetest 5.0.0 you can use the callback minetest.register_allow_player_inventory_action to prevent items to be placed in player inventory slots.
Sample code: (untested, use "Quote" function to keep tabulators)

Code: Select all

mminetest.register_allow_player_inventory_action(function(player, action, inv, info)
	if action == "take" then
		return -- Not interesting
	end
	local list = info.to_list or info.listname
	if list ~= "ring_slots" then
		return -- Wrong affected list
	end
	return 0 -- May not put the item into this slot
end)

[Extex]

OK I have no idea how that function works.
So I just copy pasted, and for some reason both of the slots are just gone

And the content of the slots was shifted to my crafting

I removed it and it still happens
I just get this error

2019-05-25 12:44:47: WARNING[Main]: GUIFormSpecMenu::drawList(): The inventory list "ring_slots" @ "current_player" doesn't exist

[Extex]

Oh nvm I figured out what was wrong.
I needed to do it like this

Code: Select all

minetest.register_on_joinplayer(function(player)                                 
    local inv = player:get_inventory()                                           
    inv:set_size("rings", 2)                                              
end)
sfinv.register_page("rings:ring_page", {
	title = "Rings",
	get = function(self, player, context)
	    local formspec = ""..
                "list[current_player;rings;1.75,0.5;1,2;]"..
				""..
				"image[0,4.7;1,1;gui_hb_bg.png]"..
				"image[1,4.7;1,1;gui_hb_bg.png]"..
				"image[2,4.7;1,1;gui_hb_bg.png]"..
				"image[3,4.7;1,1;gui_hb_bg.png]"..
				"image[4,4.7;1,1;gui_hb_bg.png]"..
				"image[5,4.7;1,1;gui_hb_bg.png]"..
				"image[6,4.7;1,1;gui_hb_bg.png]"..
				"image[7,4.7;1,1;gui_hb_bg.png]"
		  return sfinv.make_formspec(player, context, formspec, true)
	end
})

But still can't figure out how to limit it to only items with "ring" group