worldedit_commands/safe.lua

   1 local safe_region_callback = {}\r
   2 \r
   3 worldedit._override_safe_regions = false -- internal use ONLY!\r
   4 \r
   5 --`count` is the number of nodes that would possibly be modified\r
   6 --`callback` is a callback to run when the user confirms\r
   7 local function safe_region(name, count, callback)\r
   8         if worldedit._override_safe_regions or count < 10000 then\r
   9                 return callback()\r
  10         end\r
  11 \r
  12         --save callback to call later\r
  13         safe_region_callback[name] = callback\r
  14         worldedit.player_notify(name, "WARNING: this operation could affect up to " .. count .. " nodes; type //y to continue or //n to cancel")\r
  15 end\r
  16 \r
  17 local function reset_pending(name)\r
  18         safe_region_callback[name] = nil\r
  19 end\r
  20 \r
  21 minetest.register_chatcommand("/y", {\r
  22         params = "",\r
  23         description = "Confirm a pending operation",\r
  24         func = function(name)\r
  25                 local callback = safe_region_callback[name]\r
  26                 if not callback then\r
  27                         worldedit.player_notify(name, "no operation pending")\r
  28                         return\r
  29                 end\r
  30 \r
  31                 reset_pending(name)\r
  32                 callback(name)\r
  33         end,\r
  34 })\r
  35 \r
  36 minetest.register_chatcommand("/n", {\r
  37         params = "",\r
  38         description = "Abort a pending operation",\r
  39         func = function(name)\r
  40                 if not safe_region_callback[name] then\r
  41                         worldedit.player_notify(name, "no operation pending")\r
  42                         return\r
  43                 end\r
  44 \r
  45                 reset_pending(name)\r
  46         end,\r
  47 })\r
  48 \r
  49 \r
  50 return safe_region, reset_pending\r