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         pathfinder_works = true,
  19         object_step_has_moveresult = true,
  20         direct_velocity_on_players = true,
  21         use_texture_alpha_string_modes = true,
  22 }
  23
  24 function core.has_feature(arg)
  25         if type(arg) == "table" then
  26                 local missing_features = {}
  27                 local result = true
  28                 for ftr in pairs(arg) do
  29                         if not core.features[ftr] then
  30                                 missing_features[ftr] = true
  31                                 result = false
  32                         end
  33                 end
  34                 return result, missing_features
  35         elseif type(arg) == "string" then
  36                 if not core.features[arg] then
  37                         return false, {[arg]=true}
  38                 end
  39                 return true, {}
  40         end
  41 end