516 lines
14 KiB
Lua
516 lines
14 KiB
Lua
--[[
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ICTA Controller
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===============
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Part of the SmartLine mod
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Copyright (C) 2017-2020 Joachim Stolberg
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AGPL v3
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See LICENSE.txt for more information
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controller.lua
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]]--
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--
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-- Helper functions
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--
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local function gen_table(size, val)
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local tbl = {}
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for idx = 1,size do
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if type(val) == "table" then
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tbl[idx] = table.copy(val)
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else
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tbl[idx] = val
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end
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end
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return tbl
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end
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local function integer(s, min, max)
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if s and s ~= "" and s:find("^%d+$") then
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local num = tonumber(s)
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if num < min then num = min end
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if num > max then num = max end
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return num
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end
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return min
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end
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local sOUTPUT = "Edit commands (see help)"
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local Cache = {}
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local FS_DATA = gen_table(smartline.NUM_RULES, {})
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local function output(pos, text, flush_buffer)
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local meta = minetest.get_meta(pos)
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if not flush_buffer then
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text = meta:get_string("output") .. "\n" .. (text or "")
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text = text:sub(-500,-1)
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end
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meta:set_string("output", text)
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meta:set_string("formspec", smartline.formspecOutput(meta))
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end
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----------------- template -------------------------------
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-- -- Rule 1
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-- if env.blocked[1] == false and env.ticks % <cycle> == 0 then
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-- env.result[1] = <check condition>
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-- env.blocked[1] = env.result[1] <expected result>
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-- if env.blocked[1] then
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-- env.timer[1] = env.ticks + <after>
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-- end
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-- env.conditions[1] = env.blocked[1]
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-- else
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-- env.conditions[1] = false
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-- end
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-- if env.blocked[1] and env.timer[1] == env.ticks then
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-- <action>
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-- env.blocked[1] = false
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-- end
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-- -- Callback variant
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-- if env.blocked[1] == false and env.ticks % <cycle> == 0 then
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-- env.result[1], env.blocked[1] = <callback>
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-- if env.blocked[1] then
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-- env.timer[1] = env.ticks + <after>
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-- end
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-- env.conditions[1] = env.blocked[1]
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-- else
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-- env.conditions[1] = false
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-- end
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-- if env.blocked[1] and env.timer[1] == env.ticks then
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-- <action>
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-- env.blocked[1] = false
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-- end
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-- cyclic execution
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local TemplCyc = [[
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-- Rule #
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if env.blocked[#] == false and env.ticks %% %s == 0 then
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env.result[#] = %s
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env.blocked[#] = env.result[#] %s
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if env.blocked[#] then
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env.timer[#] = env.ticks + %s
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end
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env.condition[#] = env.blocked[#]
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else
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env.condition[#] = false
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end
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if env.blocked[#] and env.timer[#] == env.ticks then
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%s
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env.blocked[#] = false
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end
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]]
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-- event based execution
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local TemplEvt = [[
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-- Rule #
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if env.blocked[#] == false and env.event then
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env.result[#] = %s
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env.blocked[#] = env.result[#] %s
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if env.blocked[#] then
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env.timer[#] = env.ticks + %s
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end
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env.condition[#] = env.blocked[#]
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else
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env.condition[#] = false
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end
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if env.blocked[#] and env.timer[#] == env.ticks then
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%s
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env.blocked[#] = false
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end
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]]
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-- event based execution of callback function
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local TemplEvtClbk = [[
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-- Rule #
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if env.blocked[#] == false and env.event then
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env.result[#], env.blocked[#] = %s(env, %s)
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if env.blocked[#] then
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env.timer[#] = env.ticks + %s
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end
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env.condition[#] = env.blocked[#]
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else
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env.condition[#] = false
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end
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if env.blocked[#] and env.timer[#] == env.ticks then
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%s
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env.blocked[#] = false
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end
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]]
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-- generate the Lua code from the NUM_RULES rules
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local function generate(pos, meta, environ)
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local fs_data = minetest.deserialize(meta:get_string("fs_data")) or FS_DATA
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-- chunks are compiled as vararg functions. Parameters are available via: local a, b, c = ...
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local tbl = {"local env, output = ...\n"}
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for idx = 1,smartline.NUM_RULES do
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local cycle = integer(fs_data[idx].cycle, 0, 1000)
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local cond, result = smartline.code_condition(fs_data[idx].cond, environ)
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local after = integer(fs_data[idx].after, 0, 1000)
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local actn = smartline.code_action(fs_data[idx].actn, environ)
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-- valid rule?
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if cycle and cond and after and actn then
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-- add rule number
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local s
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if cycle == 0 then -- event?
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if result then
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s = string.format(TemplEvt, cond, result, after, actn)
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else -- callback function
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local data = dump(fs_data[idx].cond)
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s = string.format(TemplEvtClbk, cond, data, after, actn)
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end
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else -- cyclic
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s = string.format(TemplCyc, cycle, cond, result, after, actn)
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end
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-- add to list of rules
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tbl[#tbl+1] = s:gsub("#", idx)
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elseif cond ~= nil and actn == nil then
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output(pos, "Error in action in rule "..idx)
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elseif cond == nil and actn ~= nil then
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output(pos, "Error in condition in rule "..idx)
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end
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end
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return table.concat(tbl)
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end
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local function runtime_environ(pos)
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return {
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ticks = 0,
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pos = pos,
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timer = gen_table(8, 0),
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blocked = gen_table(8, false),
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result = gen_table(8, false),
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condition = gen_table(8, false),
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input = {}, -- node number is key
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}
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end
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local function compile(pos, meta, number)
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local gen_environ = {
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meta = meta,
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pos = pos,
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number = number,
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owner = meta:get_string("owner"),
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}
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local text = generate(pos, meta, gen_environ)
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if text then
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local code, err = loadstring(text)
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if code then
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Cache[number] = {
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code = code,
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env = runtime_environ(pos),
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}
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return true
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else
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output(pos, err)
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return false
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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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local function execute(pos, number, event)
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local code = Cache[number].code
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local env = Cache[number].env
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if event then
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env.event = true
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else
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env.event = false
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env.ticks = env.ticks + 1
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end
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local res, err = pcall(code, env, output)
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if not res then
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output(pos, err)
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return false
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end
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return true
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end
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local function battery(pos)
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local battery_pos = minetest.find_node_near(pos, 1, {"smartline:battery", "sl_controller:battery"})
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if battery_pos then
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local meta = minetest.get_meta(pos)
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meta:set_string("battery", minetest.pos_to_string(battery_pos))
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return true
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end
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return false
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end
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local function start_controller(pos, meta)
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local number = meta:get_string("number")
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if not battery(pos) then
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meta:set_string("formspec", smartline.formspecError(meta))
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return false
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end
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meta:set_string("output", "<press update>")
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meta:set_int("cpu", 0)
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if compile(pos, meta, number) then
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meta:set_int("state", tubelib.RUNNING)
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minetest.get_node_timer(pos):start(1)
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local fs_data = minetest.deserialize(meta:get_string("fs_data")) or FS_DATA
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meta:set_string("formspec", smartline.formspecRules(meta, fs_data, sOUTPUT))
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meta:set_string("infotext", "Controller "..number..": running")
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return true
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end
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return false
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end
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local function stop_controller(pos, meta)
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local number = meta:get_string("number")
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meta:set_int("state", tubelib.STOPPED)
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minetest.get_node_timer(pos):stop()
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meta:set_string("infotext", "Controller "..number..": stopped")
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local fs_data = minetest.deserialize(meta:get_string("fs_data")) or FS_DATA
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meta:set_string("formspec", smartline.formspecRules(meta, fs_data, sOUTPUT))
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end
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local function no_battery(pos)
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local meta = minetest.get_meta(pos)
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local number = meta:get_string("number")
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meta:set_int("state", tubelib.STOPPED)
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minetest.get_node_timer(pos):stop()
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meta:set_string("infotext", "Controller "..number..": No battery")
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meta:set_string("formspec", smartline.formspecError(meta))
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end
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local function update_battery(meta, cpu)
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local pos = minetest.string_to_pos(meta:get_string("battery"))
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if pos then
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meta = minetest.get_meta(pos)
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local content = meta:get_int("content") - cpu
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if content <= 0 then
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meta:set_int("content", 0)
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return false
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end
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meta:set_int("content", content)
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return true
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end
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end
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local function on_timer(pos, elapsed)
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local meta = minetest.get_meta(pos)
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local t = minetest.get_us_time()
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local number = meta:get_string("number")
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if Cache[number] or compile(pos, meta, number) then
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local res = execute(pos, number, elapsed == -1)
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if res then
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t = minetest.get_us_time() - t
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if not update_battery(meta, t) then
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no_battery(pos)
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return false
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end
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end
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--print("on_timer", t)
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return res
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end
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return false
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end
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local function on_receive_fields(pos, formname, fields, player)
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local meta = minetest.get_meta(pos)
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local owner = meta:get_string("owner")
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if not player or not player:is_player() then
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return
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end
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if player:get_player_name() ~= owner then
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return
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end
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--print("fields", dump(fields))
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if fields.quit then -- cancel button
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return
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end
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if fields.notes then -- notes tab?
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meta:set_string("notes", fields.notes)
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end
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if fields.go then
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local fs_data = minetest.deserialize(meta:get_string("fs_data")) or FS_DATA
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local output = smartline.edit_command(fs_data, fields.cmnd)
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stop_controller(pos, meta)
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meta:set_string("formspec", smartline.formspecRules(meta, fs_data, output))
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meta:set_string("fs_data", minetest.serialize(fs_data))
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end
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if fields._type_ == "main" then
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smartline.store_main_form_data(meta, fields)
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local key = smartline.main_form_button_pressed(fields)
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if key then
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-- store data before going into sub-menu
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meta:set_string("fs_old", meta:get_string("fs_data"))
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meta:set_string("formspec", smartline.formspecSubMenu(meta, key))
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end
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elseif fields._col_ == "cond" then
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smartline.cond_formspec_update(meta, fields)
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elseif fields._col_ == "actn" then
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smartline.actn_formspec_update(meta, fields)
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end
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if fields._exit_ == "ok" then -- exit from sub-menu?
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if fields._button_ then
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smartline.formspec_button_update(meta, fields)
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end
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-- simulate tab selection
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fields.tab = "1"
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elseif fields._cancel_ == "cancel" then -- abort from sub-menu?
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-- restore old data
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meta:set_string("fs_data", meta:get_string("fs_old"))
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-- simulate tab selection
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fields.tab = "1"
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elseif fields.save == "Save" then -- abort from sub-menu?
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-- store as old data
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meta:set_string("fs_old", meta:get_string("fs_data"))
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-- simulate tab selection
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fields.tab = "1"
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elseif fields.sb_help then
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local evt = minetest.explode_scrollbar_event(fields.sb_help)
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meta:set_string("formspec", smartline.formspecHelp(evt.value))
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end
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if fields.update then
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meta:set_string("formspec", smartline.formspecOutput(meta))
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elseif fields.clear then
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meta:set_string("output", "<press update>")
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meta:set_string("formspec", smartline.formspecOutput(meta))
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elseif fields.list then
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local fs_data = minetest.deserialize(meta:get_string("fs_data")) or FS_DATA
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local s = smartline.listing(fs_data)
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output(pos, s, true)
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elseif fields.tab == "1" then
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local fs_data = minetest.deserialize(meta:get_string("fs_data")) or FS_DATA
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meta:set_string("formspec", smartline.formspecRules(meta, fs_data, sOUTPUT))
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elseif fields.tab == "2" then
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meta:set_string("formspec", smartline.formspecOutput(meta))
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elseif fields.tab == "3" then
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meta:set_string("formspec", smartline.formspecNotes(meta))
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elseif fields.tab == "4" then
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meta:set_string("formspec", smartline.formspecHelp(1))
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elseif fields.start == "Start" then
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local environ = {
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meta = meta,
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pos = pos,
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number = meta:get_string("number"),
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owner = meta:get_string("owner"),
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}
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--print("CODE:", generate(pos, meta, environ))
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start_controller(pos, meta)
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minetest.log("action", player:get_player_name() ..
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" starts the smartline_controller2 at ".. minetest.pos_to_string(pos))
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elseif fields.stop == "Stop" then
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stop_controller(pos, meta)
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end
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end
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minetest.register_node("smartline:controller2", {
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description = "SmartLine Controller",
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inventory_image = "smartline_controller_inventory.png",
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wield_image = "smartline_controller_inventory.png",
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stack_max = 1,
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tiles = {
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-- up, down, right, left, back, front
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"smartline.png",
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"smartline.png",
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"smartline.png",
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"smartline.png",
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"smartline.png",
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"smartline.png^smartline_controller.png",
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},
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drawtype = "nodebox",
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node_box = {
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type = "fixed",
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fixed = {
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{ -6/32, -6/32, 14/32, 6/32, 6/32, 16/32},
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},
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},
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after_place_node = function(pos, placer)
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local meta = minetest.get_meta(pos)
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local number = tubelib.add_node(pos, "smartline:controller2")
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local fs_data = FS_DATA
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meta:set_string("fs_data", minetest.serialize(fs_data))
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meta:set_string("owner", placer:get_player_name())
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meta:set_string("number", number)
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meta:set_int("state", tubelib.STOPPED)
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meta:set_string("formspec", smartline.formspecRules(meta, fs_data, sOUTPUT))
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--meta:set_string("formspec", smartline.cond_formspec(1, 1, nil))
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meta:set_string("infotext", "SmartLine Controller "..number..": stopped")
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end,
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on_receive_fields = on_receive_fields,
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on_dig = function(pos, node, puncher, pointed_thing)
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if minetest.is_protected(pos, puncher:get_player_name()) then
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return
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end
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minetest.node_dig(pos, node, puncher, pointed_thing)
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tubelib.remove_node(pos)
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end,
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on_timer = on_timer,
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paramtype = "light",
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sunlight_propagates = true,
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paramtype2 = "facedir",
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groups = {choppy=1, cracky=1, crumbly=1},
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is_ground_content = false,
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sounds = default.node_sound_stone_defaults(),
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})
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minetest.register_craft({
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output = "smartline:controller2",
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recipe = {
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{"", "default:mese_crystal", ""},
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{"dye:blue", "default:copper_ingot", "tubelib:wlanchip"},
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{"", "default:mese_crystal", ""},
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},
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})
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-- write inputs from remote nodes
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local function set_input(pos, own_number, rmt_number, val)
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if rmt_number then
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if Cache[own_number] and Cache[own_number].env.input then
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local t = minetest.get_us_time()
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Cache[own_number].env.input[rmt_number] = val
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Cache[own_number].env.last_event = t
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-- only two events per second
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if not Cache[own_number].last_event or Cache[own_number].last_event < t then
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minetest.after(0.01, on_timer, pos, -1)
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Cache[own_number].last_event = t + 500000 -- add 500 ms
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end
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end
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end
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end
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tubelib.register_node("smartline:controller2", {}, {
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on_recv_message = function(pos, topic, payload)
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local meta = minetest.get_meta(pos)
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local number = meta:get_string("number")
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local state = meta:get_int("state")
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if state == tubelib.RUNNING and topic == "on" then
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set_input(pos, number, payload, topic)
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elseif state == tubelib.RUNNING and topic == "off" then
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set_input(pos, number, payload, topic)
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elseif topic == "state" then
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local state = meta:get_int("state")
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return tubelib.statestring(state)
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else
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return "unsupported"
|
|
end
|
|
end,
|
|
on_node_load = function(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
if meta:get_int("state") == tubelib.RUNNING then
|
|
minetest.get_node_timer(pos):start(1)
|
|
end
|
|
end,
|
|
})
|
|
|