Simple Fast Inventory

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A cleaner, simpler solution to having an advanced inventory in Minetest.

Written by rubenwardy.\ License: MIT

sfinv_crafting_arrow.png - by paramat, derived from a texture by BlockMen (CC BY-SA 3.0).

API

It is recommended that you read this link for a good introduction to the sfinv API by its author: https://rubenwardy.com/minetest_modding_book/en/players/sfinv.html

sfinv Methods

Pages

sfinv.set_page(player, pagename) - changes the page
sfinv.get_homepage_name(player) - get the page name of the first page to show to a player
sfinv.register_page(name, def) - register a page, see section below
sfinv.override_page(name, def) - overrides fields of an page registered with register_page.
- Note: Page must already be defined, (opt)depend on the mod defining it.
sfinv.set_player_inventory_formspec(player) - (re)builds page formspec and calls set_inventory_formspec().
sfinv.get_formspec(player, context) - builds current page's formspec

Contexts

sfinv.get_or_create_context(player) - gets the player's context
sfinv.set_context(player, context)

Theming

sfinv.make_formspec(player, context, content, show_inv, size) - adds a theme to a formspec
- show_inv, defaults to false. Whether to show the player's main inventory
- size, defaults to size[8,8.6] if not specified
sfinv.get_nav_fs(player, context, nav, current_idx) - creates tabheader or ""

sfinv Members

pages - table of pages[pagename] = def
pages_unordered - array table of pages in order of addition (used to build navigation tabs).
contexts - contexts[playername] = player_context
enabled - set to false to disable. Good for inventory rehaul mods like unified inventory

Context

A table with these keys:

page - current page name
nav - a list of page names
nav_titles - a list of page titles
nav_idx - current nav index (in nav and nav_titles)
any thing you want to store
- sfinv will clear the stored data on log out / log in

sfinv.register_page

sfinv.register_page(name, def)

def is a table containing:

title - human readable page name (required)
get(self, player, context) - returns a formspec string. See formspec variables. (required)
is_in_nav(self, player, context) - return true to show in the navigation (the tab header, by default)
on_player_receive_fields(self, player, context, fields) - on formspec submit.
on_enter(self, player, context) - called when the player changes pages, usually using the tabs.
on_leave(self, player, context) - when leaving this page to go to another, called before other's on_enter

get formspec

Use sfinv.make_formspec to apply a layout:

return sfinv.make_formspec(player, context, [[
	list[current_player;craft;1.75,0.5;3,3;]
	list[current_player;craftpreview;5.75,1.5;1,1;]
	image[4.75,1.5;1,1;gui_furnace_arrow_bg.png^[transformR270]
	listring[current_player;main]
	listring[current_player;craft]
	image[0,4.25;1,1;gui_hb_bg.png]
	image[1,4.25;1,1;gui_hb_bg.png]
	image[2,4.25;1,1;gui_hb_bg.png]
	image[3,4.25;1,1;gui_hb_bg.png]
	image[4,4.25;1,1;gui_hb_bg.png]
	image[5,4.25;1,1;gui_hb_bg.png]
	image[6,4.25;1,1;gui_hb_bg.png]
	image[7,4.25;1,1;gui_hb_bg.png]
]], true)

See above (methods section) for more options.

Customizing themes

Simply override this function to change the navigation:

function sfinv.get_nav_fs(player, context, nav, current_idx)
	return "navformspec"
end

And override this function to change the layout:

function sfinv.make_formspec(player, context, content, show_inv, size)
	local tmp = {
		size or "size[8,8.6]",
		theme_main,
		sfinv.get_nav_fs(player, context, context.nav_titles, context.nav_idx),
		content
	}
	if show_inv then
		tmp[4] = theme_inv
	end
	return table.concat(tmp, "")
end

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