mods/screwdriver/init.lua

   1 local function nextrange(x, max)
   2         x = x + 1
   3         if x > max then
   4                 x = 0
   5         end
   6         return x
   7 end
   8
   9 local ROTATE_FACE = 1
  10 local ROTATE_AXIS = 2
  11 local USES = 10
  12
  13 -- Handles rotation
  14 local function screwdriver_handler(itemstack, user, pointed_thing, mode)
  15         if pointed_thing.type ~= "node" then
  16                 return
  17         end
  18
  19         local pos = pointed_thing.under
  20
  21         if minetest.is_protected(pos, user:get_player_name()) then
  22                 minetest.record_protection_violation(pos, user:get_player_name())
  23                 return
  24         end
  25
  26         local node = minetest.get_node(pos)
  27         local ndef = minetest.registered_nodes[node.name]
  28         if not ndef or not ndef.paramtype2 == "facedir" or
  29                         (ndef.drawtype == "nodebox" and
  30                         not ndef.node_box.type == "fixed") or
  31                         node.param2 == nil then
  32                 return
  33         end
  34
  35         if ndef.can_dig and not ndef.can_dig(pos, user) then
  36                 return
  37         end
  38
  39         -- Set param2
  40         local n = node.param2
  41         local axisdir = math.floor(n / 4)
  42         local rotation = n - axisdir * 4
  43         if mode == ROTATE_FACE then
  44                 n = axisdir * 4 + nextrange(rotation, 3)
  45         elseif mode == ROTATE_AXIS then
  46                 n = nextrange(axisdir, 5) * 4
  47         end
  48
  49         node.param2 = n
  50         minetest.swap_node(pos, node)
  51
  52         if not minetest.setting_getbool("creative_mode") then
  53                 itemstack:add_wear(65535 / (USES - 1))
  54         end
  55
  56         return itemstack
  57 end
  58
  59 -- Screwdriver
  60 minetest.register_tool("screwdriver:screwdriver", {
  61         description = "Screwdriver (left-click rotates face, right-click rotates axis)",
  62         inventory_image = "screwdriver.png",
  63         on_use = function(itemstack, user, pointed_thing)
  64                 screwdriver_handler(itemstack, user, pointed_thing, ROTATE_FACE)
  65                 return itemstack
  66         end,
  67         on_place = function(itemstack, user, pointed_thing)
  68                 screwdriver_handler(itemstack, user, pointed_thing, ROTATE_AXIS)
  69                 return itemstack
  70         end,
  71 })
  72
  73
  74 minetest.register_craft({
  75         output = "screwdriver:screwdriver",
  76         recipe = {
  77                 {"default:steel_ingot"},
  78                 {"group:stick"}
  79         }
  80 })
  81
  82 minetest.register_alias("screwdriver:screwdriver1", "screwdriver:screwdriver")
  83 minetest.register_alias("screwdriver:screwdriver2", "screwdriver:screwdriver")
  84 minetest.register_alias("screwdriver:screwdriver3", "screwdriver:screwdriver")
  85 minetest.register_alias("screwdriver:screwdriver4", "screwdriver:screwdriver")