slowscaffold.lua

   1 -- CC0/Unlicense Emilia 2020
   2
   3 if minetest.settings:get("slow_blocks_per_second") == nil then
   4     minetest.settings:set("slow_blocks_per_second", 8)
   5 end
   6
   7 -- Could remove the queue and have nowplace() check if it can place at the position
   8
   9 local lastt = 0
  10
  11 local posqueue = {}
  12
  13 local function posq_pos(pos)
  14     local plen = #posqueue
  15     for i = 0, #posqueue - 1 do
  16         if vector.equals(pos, posqueue[plen - i]) then
  17             return plen - i
  18         end
  19     end
  20 end
  21
  22 local function nowplace(pos)
  23     local p = posq_pos(pos)
  24     if p then
  25         table.remove(posqueue, p)
  26     end
  27
  28     minetest.place_node(pos)
  29 end
  30
  31 local function place(pos)
  32     if not posq_pos(pos) then
  33         local now = os.clock()
  34
  35         if lastt < now then
  36             lastt = now
  37         end
  38
  39         local interval = 1 / minetest.settings:get("slow_blocks_per_second")
  40         lastt = lastt + interval
  41
  42         minetest.after(lastt - now, nowplace, pos)
  43
  44         posqueue[#posqueue + 1] = pos
  45     end
  46 end
  47
  48 scaffold.register_template_scaffold("SlowScaffold", "scaffold_slow", function(pos)
  49     if scaffold.can_place_wielded_at(pos) then
  50         place(pos)
  51     end
  52 end)