builtin/game/features.lua

   1 -- Minetest: builtin/features.lua
   2
   3 core.features = {
   4         glasslike_framed = true,
   5         nodebox_as_selectionbox = true,
   6         get_all_craft_recipes_works = true,
   7         use_texture_alpha = true,
   8         no_legacy_abms = true,
   9         texture_names_parens = true,
  10         area_store_custom_ids = true,
  11         add_entity_with_staticdata = true,
  12         no_chat_message_prediction = true,
  13         object_use_texture_alpha = true,
  14         object_independent_selectionbox = true,
  15         httpfetch_binary_data = true,
  16         formspec_version_element = true,
  17         area_store_persistent_ids = true,
  18 }
  19
  20 function core.has_feature(arg)
  21         if type(arg) == "table" then
  22                 local missing_features = {}
  23                 local result = true
  24                 for ftr in pairs(arg) do
  25                         if not core.features[ftr] then
  26                                 missing_features[ftr] = true
  27                                 result = false
  28                         end
  29                 end
  30                 return result, missing_features
  31         elseif type(arg) == "string" then
  32                 if not core.features[arg] then
  33                         return false, {[arg]=true}
  34                 end
  35                 return true, {}
  36         end
  37 end