mods/PLAYER/mcl_playerinfo/init.lua

   1 -- Player state for public API
   2 mcl_playerinfo = {}
   3
   4 -- Get node but use fallback for nil or unknown
   5 local function node_ok(pos, fallback)
   6
   7         fallback = fallback or "air"
   8
   9         local node = minetest.get_node_or_nil(pos)
  10
  11         if not node then
  12                 return fallback
  13         end
  14
  15         if minetest.registered_nodes[node.name] then
  16                 return node.name
  17         end
  18
  19         return fallback
  20 end
  21
  22 local time = 0
  23
  24 local get_player_nodes = function(player_pos)
  25         local work_pos = table.copy(player_pos)
  26
  27         -- what is around me?
  28         work_pos.y = work_pos.y - 0.1 -- standing on
  29         local node_stand = node_ok(work_pos)
  30         local node_stand_below = node_ok({x=work_pos.x, y=work_pos.y-1, z=work_pos.z})
  31
  32         work_pos.y = work_pos.y + 1.5 -- head level
  33         local node_head = node_ok(work_pos)
  34
  35         work_pos.y = work_pos.y - 1.2 -- feet level
  36         local node_feet = node_ok(work_pos)
  37
  38         return node_stand, node_stand_below, node_head, node_feet
  39 end
  40
  41 minetest.register_globalstep(function(dtime)
  42
  43         time = time + dtime
  44
  45         -- Run the rest of the code every 0.5 seconds
  46         if time < 0.5 then
  47                 return
  48         end
  49
  50         -- reset time for next check
  51         -- FIXME: Make sure a regular check interval applies
  52         time = 0
  53
  54         -- check players
  55         for _,player in pairs(minetest.get_connected_players()) do
  56                 -- who am I?
  57                 local name = player:get_player_name()
  58
  59                 -- where am I?
  60                 local pos = player:get_pos()
  61
  62                 -- what is around me?
  63                 local node_stand, node_stand_below, node_head, node_feet = get_player_nodes(pos)
  64                 mcl_playerinfo[name].node_stand = node_stand
  65                 mcl_playerinfo[name].node_stand_below = node_stand_below
  66                 mcl_playerinfo[name].node_head = node_head
  67                 mcl_playerinfo[name].node_feet = node_feet
  68
  69         end
  70
  71 end)
  72
  73 -- set to blank on join (for 3rd party mods)
  74 minetest.register_on_joinplayer(function(player)
  75         local name = player:get_player_name()
  76
  77         mcl_playerinfo[name] = {
  78                 node_head = "",
  79                 node_feet = "",
  80                 node_stand = "",
  81                 node_stand_below = "",
  82         }
  83
  84 end)
  85
  86 -- clear when player leaves
  87 minetest.register_on_leaveplayer(function(player)
  88         local name = player:get_player_name()
  89
  90         mcl_playerinfo[name] = nil
  91 end)