techpack/smartline/collector.lua

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--[[
SmartLine
=========
Copyright (C) 2017-2020 Joachim Stolberg
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AGPL v3
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See LICENSE.txt for more information
collector.lua:
Collects states from other nodes, acting as a state concentrator.
]]--
-- Load support for I18n
local S = smartline.S
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local CYCLE_TIME = 1
local tStates = {stopped = 0, running = 0, standby = 1, blocked = 2, fault = 3, defect = 4}
local tDropdownPos = {["1 standby"] = 1, ["2 blocked"] = 2 , ["3 fault"] = 3, ["4 defect"] = 4}
local lStates = {[0] = "stopped", "standby", "blocked", "fault", "defect"}
local function formspec(meta)
local poll_numbers = meta:get_string("poll_numbers")
local event_number = meta:get_string("event_number")
local dropdown_pos = meta:get_int("dropdown_pos")
if dropdown_pos == 0 then dropdown_pos = 1 end
return "size[9,6]"..
default.gui_bg..
default.gui_bg_img..
default.gui_slots..
"field[0.3,0.6;9,1;poll_numbers;"..S("Node numbers to read the states from:")..";"..poll_numbers.."]" ..
"field[0.3,2;9,1;event_number;"..S("Node number to send the events to:")..";"..event_number.."]" ..
"label[1.3,2.8;"..S("Send an event if state is equal or larget than:").."]"..
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"dropdown[1.2,3.4;7,4;severity;1 standby,2 blocked,3 fault,4 defect;"..dropdown_pos.."]"..
"button_exit[3,5;2,1;exit;"..S("Save").."]"
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end
local function send_event(meta)
local event_number = meta:get_string("event_number")
if event_number ~= "" then
local state = meta:get_int("state")
local severity = meta:get_int("dropdown_pos")
local owner = meta:get_string("owner")
local own_number = meta:get_string("own_number")
if state >= severity then
tubelib.send_message(event_number, owner, nil, "on", own_number)
else
tubelib.send_message(event_number, owner, nil, "off", own_number)
end
meta:set_string("infotext", S("SmartLine State Collector").." "..own_number..': "'..lStates[state]..'"')
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meta:set_int("stored_state", state)
meta:set_int("state", 0)
end
end
local function request_state(meta, poll_numbers, idx)
local number = string.split(poll_numbers, " ")[idx]
local state = tubelib.send_request(number, "state", nil)
if state then
state = tStates[state] or 0
meta:set_int("state", math.max(meta:get_int("state"), state))
end
end
local function on_timer(pos,elapsed)
if tubelib.data_not_corrupted(pos) then
local meta = minetest.get_meta(pos)
local poll_numbers = meta:get_string("poll_numbers")
local idx = meta:get_int("index") + 1
if poll_numbers == "" then
local own_number = meta:get_string("own_number")
meta:set_string("infotext", S("SmartLine State Collector").." "..own_number..": stopped")
meta:set_int("state", 0)
meta:set_int("stored_state", 0)
return false
end
if idx > meta:get_int("num_numbers") then
idx = 1
send_event(meta)
end
meta:set_int("index", idx)
request_state(meta, poll_numbers, idx)
return true
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end
return false
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end
minetest.register_node("smartline:collector", {
description = S("SmartLine State Collector"),
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inventory_image = "smartline_collector_inventory.png",
tiles = {
-- up, down, right, left, back, front
"smartline.png",
"smartline.png",
"smartline.png",
"smartline.png",
"smartline.png",
"smartline.png^smartline_collector.png",
},
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{ -6/32, -6/32, 14/32, 6/32, 6/32, 16/32},
},
},
after_place_node = function(pos, placer)
local meta = minetest.get_meta(pos)
local own_number = tubelib.add_node(pos, "smartline:collector")
meta:set_string("own_number", own_number)
meta:set_string("poll_numbers", "")
meta:set_string("event_number", "")
meta:set_string("formspec", formspec(meta))
meta:set_string("infotext", S("SmartLine State Collector").." "..own_number)
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meta:set_string("owner", placer:get_player_name())
end,
on_receive_fields = function(pos, formname, fields, player)
local meta = minetest.get_meta(pos)
local owner = meta:get_string("owner")
local timer = minetest.get_node_timer(pos)
local own_number = meta:get_string("own_number")
if owner ~= player:get_player_name() then
return
end
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if fields.quit == "true" and fields.poll_numbers then
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if tubelib.check_numbers(fields.event_number) then
meta:set_string("event_number", fields.event_number)
end
if tubelib.check_numbers(fields.poll_numbers) then
meta:set_string("poll_numbers", fields.poll_numbers)
meta:set_int("index", 0)
meta:set_int("num_numbers", #string.split(fields.poll_numbers, " "))
if not timer:is_started() then
timer:start(CYCLE_TIME)
end
meta:set_string("infotext", S("SmartLine State Collector").." "..own_number..": running")
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else
if timer:is_started() then
timer:stop()
end
meta:set_string("infotext", "SmartLine State Collector "..own_number..": stopped")
meta:set_int("stored_state", 0)
end
if fields.severity then
meta:set_int("dropdown_pos", tDropdownPos[fields.severity])
end
meta:set_string("formspec", formspec(meta))
end
end,
on_timer = on_timer,
after_dig_node = function(pos)
tubelib.remove_node(pos)
end,
paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
groups = {choppy=2, cracky=2, crumbly=2},
is_ground_content = false,
sounds = default.node_sound_stone_defaults(),
})
minetest.register_craft({
output = "smartline:collector",
recipe = {
{"", "default:copper_ingot", ""},
{"tubelib:wlanchip", "dye:blue", "tubelib:wlanchip"},
{"", "default:copper_ingot", ""},
},
})
tubelib.register_node("smartline:collector", {}, {
on_recv_message = function(pos, topic, payload)
if topic == "set_numbers" then
local meta = minetest.get_meta(pos)
if tubelib.check_numbers(payload) then
meta:set_string("poll_numbers", payload)
meta:set_string("formspec", formspec(meta))
meta:set_int("num_numbers", #string.split(payload, " "))
minetest.get_node_timer(pos):start(CYCLE_TIME)
end
return true
elseif topic == "state" then
local meta = minetest.get_meta(pos)
local state = meta:get_int("stored_state")
return lStates[state]
else
return "unsupported"
end
end,
on_node_load = function(pos)
minetest.get_node_timer(pos):start(CYCLE_TIME)
end,
})