init.lua

   1 -- Boilerplate to support localized strings if intllib mod is installed.
   2 local S
   3 if minetest.get_modpath("intllib") then
   4         S = intllib.Getter()
   5 else
   6         S = function(s) return s end
   7 end
   8
   9 local buttons = {}
  10 local buttons_num = 0
  11
  12 local button_prefix = "sfinv_button_"
  13
  14 sfinv_buttons = {}
  15
  16
  17 sfinv_buttons.register_button = function(name, def)
  18         buttons[name] = def
  19         buttons_num = buttons_num + 1
  20 end
  21
  22 local MAX_ROWS = 9
  23
  24 sfinv.register_page("sfinv_buttons:buttons", {
  25         title = S("More"),
  26         is_in_nav = function(self, player, context)
  27                 -- Tab is shown only if at least 1 button is visible to player
  28                 for _, def in pairs(buttons) do
  29                         if def.show == nil or def.show(player) == true then
  30                                 return true
  31                         end
  32                 end
  33                 return false
  34         end,
  35         get = function(self, player, context)
  36                 local f = ""
  37                 local y = 0
  38                 local x = 0
  39                 local w
  40                 if buttons_num > MAX_ROWS then
  41                         w = 3
  42                 else
  43                         w = 7
  44                 end
  45                 for name, def in pairs(buttons) do
  46                         if def.show == nil or def.show(player) == true then
  47                                 if def.image ~= nil then
  48                                         f = f .. "image["..(x+0.1)..","..(y+0.1)..";0.8,0.8;"..def.image.."]"
  49                                 end
  50                                 local button_id = minetest.formspec_escape(button_prefix .. name)
  51                                 f = f .. "button["..
  52                                         (x+1)..","..y..";"..w..",1;"..
  53                                         button_id..";"..
  54                                         minetest.formspec_escape(def.title)..
  55                                         "]"
  56                                 if def.tooltip ~= nil then
  57                                         f = f .. "tooltip["..button_id..";"..
  58                                                 minetest.formspec_escape(def.tooltip).."]"
  59                                 end
  60                                 y = y + 1
  61                                 if y >= MAX_ROWS then
  62                                         y = 0
  63                                         x = x + 4
  64                                 end
  65                         end
  66                 end
  67                 return sfinv.make_formspec(player, context, f)
  68         end,
  69         on_player_receive_fields = function(self, player, context, fields)
  70                 for widget_name, _ in pairs(fields) do
  71                         local id = string.sub(widget_name, string.len(button_prefix) + 1, -1)
  72                         if buttons[id] ~= nil and buttons[id].action ~= nil then
  73                                 buttons[id].action(player)
  74                         end
  75                 end
  76         end,
  77 })