mods/redstone/player_detector.lua

   1 local minetest,ipairs,math = minetest,ipairs,math
   2 --detects players and outputs accordingly
   3 for i = 0,9  do
   4 minetest.register_node("redstone:player_detector_"..i, {
   5         description = "Redstone Player Detector",
   6         --inventory_image = "redstone_torch.png",
   7         --wield_image = "redstone_torch.png",
   8         --wield_scale = {x = 1, y = 1, z = 1 + 2/16},
   9         drawtype = "normal",
  10         tiles = {"player_detector.png"},
  11         paramtype = "light",
  12         paramtype2 = "none",
  13         power = 9,
  14         --sunlight_propagates = true,
  15         drop = "redstone:player_detector_0",
  16         --walkable = false,
  17         light_source = i,
  18         groups = {stone = 1, hard = 1, pickaxe = 1, hand = 4, torch=1,redstone=1,redstone_torch=1,redstone_power=i, redstone_player_detection = 1},
  19         legacy_wallmounted = true,
  20
  21         on_construct = function(pos)
  22                 redstone.collect_info(pos)
  23         end,
  24         after_destruct = function(pos, oldnode)
  25                 redstone.collect_info(pos)
  26         end,
  27         sounds = main.stoneSound(),
  28 })
  29 end
  30
  31 minetest.register_abm{
  32     label = "Redstone Player Detection",
  33         nodenames = {"group:redstone_player_detection"},
  34         --neighbors = {"group:water"},
  35         interval = 0.2,
  36         chance = 1,
  37         action = function(pos)
  38                 local found_player = false
  39                 for _,object in ipairs(minetest.get_objects_inside_radius(pos, 9)) do
  40                         if object:is_player() and object:get_hp() > 0 then
  41                                 local level = minetest.get_item_group(minetest.get_node(pos).name, "redstone_power")
  42                                 found_player = true
  43                                 local pos2 = object:get_pos()
  44                                 pos2 = vector.floor(vector.add(pos2,0.5))
  45                                 local distance = math.floor(vector.distance(pos2,pos))
  46                                 distance = math.abs(distance - 9)
  47                                 --print(distance)
  48                                 if level ~= distance then
  49                                         minetest.set_node(pos,{name="redstone:player_detector_"..distance})
  50                                         redstone.collect_info(pos)
  51                                         --print(distance)
  52                                 end
  53                         end
  54                 end
  55                 if found_player == false then
  56                         minetest.set_node(pos,{name="redstone:player_detector_0"})
  57                         redstone.collect_info(pos)
  58                 end
  59         end,
  60 }