mods/binoculars/init.lua

   1 -- Mod global namespace
   2
   3 binoculars = {}
   4
   5
   6 -- Cache creative mode setting
   7
   8 local creative_mode_cache = minetest.settings:get_bool("creative_mode")
   9
  10
  11 -- Update player property
  12 -- Global to allow overriding
  13
  14 function binoculars.update_player_property(player)
  15         local creative_enabled =
  16                 (creative and creative.is_enabled_for(player:get_player_name())) or
  17                 creative_mode_cache
  18
  19         if creative_enabled or
  20                         player:get_inventory():contains_item("main", "binoculars:binoculars") then
  21                 player:set_properties({can_zoom = true})
  22         else
  23                 player:set_properties({can_zoom = false})
  24         end
  25 end
  26
  27
  28 -- Set player property 'on joinplayer'
  29
  30 minetest.register_on_joinplayer(function(player)
  31         binoculars.update_player_property(player)
  32 end)
  33
  34
  35 -- Cyclic update of player property
  36
  37 local function cyclic_update()
  38         for _, player in ipairs(minetest.get_connected_players()) do
  39                 binoculars.update_player_property(player)
  40         end
  41         minetest.after(4.7, cyclic_update)
  42 end
  43
  44 minetest.after(4.7, cyclic_update)
  45
  46
  47 -- Binoculars item
  48
  49 minetest.register_craftitem("binoculars:binoculars", {
  50         description = "Binoculars\nUse with 'Zoom' key",
  51         inventory_image = "binoculars_binoculars.png",
  52         stack_max = 1,
  53
  54         on_use = function(itemstack, user, pointed_thing)
  55                 binoculars.update_player_property(user)
  56         end,
  57 })
  58
  59
  60 -- Crafting
  61
  62 minetest.register_craft({
  63         output = "binoculars:binoculars",
  64         recipe = {
  65                 {"default:obsidian_glass", "", "default:obsidian_glass"},
  66                 {"default:bronze_ingot", "default:bronze_ingot", "default:bronze_ingot"},
  67                 {"default:obsidian_glass", "", "default:obsidian_glass"},
  68         }
  69 })