forked from minetest-mods/MoreMesecons
131 lines
4.1 KiB
Lua
131 lines
4.1 KiB
Lua
-- Adjustable Player Detector
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-- Detects players in a certain radius
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-- The radius can be changes by right-click (by default 6)
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local function make_formspec(meta)
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meta:set_string("formspec", "size[9,5]" ..
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"field[0.3, 0;9,2;scanname;Name of player to scan for (empty for any):;${scanname}]"..
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"field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]"..
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"field[0.3,3;2,2;radius;Detection radius:;${radius}]"..
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"button_exit[3.5,3.5;2,3;;Save]")
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end
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local function object_detector_make_formspec(pos)
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make_formspec(minetest.get_meta(pos))
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end
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local function object_detector_on_receive_fields(pos, formname, fields)
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if not fields.scanname
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or not fields.digiline_channel then
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return
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end
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local meta = minetest.get_meta(pos)
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meta:set_string("scanname", fields.scanname)
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meta:set_string("digiline_channel", fields.digiline_channel)
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local r = tonumber(fields.radius)
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if r then
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meta:set_int("radius", r)
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end
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end
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-- returns true if player was found, false if not
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local object_detector_scan = function (pos)
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local meta = minetest.get_meta(pos)
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local scanname = meta:get_string("scanname")
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local scan_all = scanname == ""
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local radius = meta:get_int("radius")
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if radius == 0 then
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radius = 6
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end
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for _,obj in pairs(minetest.get_objects_inside_radius(pos, radius)) do
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local isname = obj:get_player_name() -- "" is returned if it is not a player; "" ~= nil!
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if isname ~= ""
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and (scan_all or isname == scanname) then -- player with scanname found or not scanname specified
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return true
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end
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end
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return false
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end
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-- set player name when receiving a digiline signal on a specific channel
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local object_detector_digiline = {
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effector = {
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action = function (pos, node, channel, msg)
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local meta = minetest.get_meta(pos)
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local active_channel = meta:get_string("digiline_channel")
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if channel ~= active_channel then
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return
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end
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meta:set_string("scanname", msg)
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if meta:get_string("formspec") ~= "" then
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make_formspec(meta)
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end
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end,
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}
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}
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minetest.register_node("moremesecons_adjustable_player_detector:player_detector_off", {
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tiles = {"default_steel_block.png", "default_steel_block.png", "moremesecons_player_detector_off.png"},
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paramtype = "light",
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walkable = true,
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groups = {cracky=3},
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description="Adjustable Player Detector",
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mesecons = {receptor = {
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state = mesecon.state.off,
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rules = mesecon.rules.pplate
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}},
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on_construct = object_detector_make_formspec,
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on_receive_fields = object_detector_on_receive_fields,
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sounds = default.node_sound_stone_defaults(),
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digiline = object_detector_digiline
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})
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minetest.register_node("moremesecons_adjustable_player_detector:player_detector_on", {
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tiles = {"default_steel_block.png", "default_steel_block.png", "moremesecons_player_detector_on.png"},
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paramtype = "light",
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walkable = true,
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groups = {cracky=3,not_in_creative_inventory=1},
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drop = 'moremesecons_adjustable_player_detector:player_detector_off',
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mesecons = {receptor = {
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state = mesecon.state.on,
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rules = mesecon.rules.pplate
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}},
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on_construct = object_detector_make_formspec,
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on_receive_fields = object_detector_on_receive_fields,
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sounds = default.node_sound_stone_defaults(),
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digiline = object_detector_digiline
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})
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minetest.register_craft({
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output = 'moremesecons_adjustable_player_detector:player_detector_off',
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recipe = {
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{"mesecons_detector:object_detector_off"},
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{"default:mese_crystal_fragment"}
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}
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})
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minetest.register_abm({
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nodenames = {"moremesecons_adjustable_player_detector:player_detector_off"},
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interval = 1.0,
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chance = 1,
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action = function(pos)
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if object_detector_scan(pos) then
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minetest.swap_node(pos, {name = "moremesecons_adjustable_player_detector:player_detector_on"})
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mesecon.receptor_on(pos, mesecon.rules.pplate)
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end
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end,
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})
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minetest.register_abm({
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nodenames = {"moremesecons_adjustable_player_detector:player_detector_on"},
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interval = 1.0,
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chance = 1,
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action = function(pos)
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if not object_detector_scan(pos) then
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minetest.swap_node(pos, {name = "moremesecons_adjustable_player_detector:player_detector_off"})
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mesecon.receptor_off(pos, mesecon.rules.pplate)
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end
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end,
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})
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