253 lines
6.5 KiB
Lua
253 lines
6.5 KiB
Lua
--[[
|
|
|
|
TechAge
|
|
=======
|
|
|
|
Copyright (C) 2017-2020 Joachim Stolberg
|
|
|
|
AGPL v3
|
|
See LICENSE.txt for more information
|
|
|
|
Lua Logic Block
|
|
|
|
]]--
|
|
|
|
-- for lazy programmers
|
|
local M = minetest.get_meta
|
|
local S = techage.S
|
|
local logic = techage.logic
|
|
|
|
-- mem.inp_tbl = {
|
|
-- n001 = true, -- "on" received
|
|
-- n002 = false, -- "off" received
|
|
-- inp = true, -- last input
|
|
-- outp = false, -- last output
|
|
-- }
|
|
|
|
local ValidSymbols = {
|
|
["if"] = true,
|
|
["then"] = true,
|
|
["else"] = true,
|
|
["end"] = true,
|
|
["return"] = true,
|
|
["not"] = true,
|
|
["and"] = true,
|
|
["or"] = true,
|
|
["inp"] = true,
|
|
["outp"] = true,
|
|
["true"] = true,
|
|
["false"] = true,
|
|
["nil"] = true,
|
|
["=="] = true,
|
|
["~="] = true,
|
|
["("] = true,
|
|
[")"] = true,
|
|
}
|
|
local function check(expression)
|
|
for _, sym in ipairs(string.split(expression, " ")) do
|
|
if not ValidSymbols[sym] and string.find(sym, '^[n0-9]+$') == nil then
|
|
return false, "Error: Invalid symbol '"..sym.."'"
|
|
end
|
|
end
|
|
return true, "ok"
|
|
end
|
|
|
|
local function compile(nvm, expression)
|
|
local res, err = check(expression)
|
|
if res then
|
|
local code, err = loadstring(expression, "")
|
|
if code then
|
|
nvm.code = code
|
|
nvm.error = "ok"
|
|
else
|
|
nvm.code = nil
|
|
nvm.error = err
|
|
end
|
|
else
|
|
nvm.code = nil
|
|
nvm.error = err
|
|
end
|
|
end
|
|
|
|
local function get_code(pos, nvm)
|
|
local meta = M(pos)
|
|
local if_expr = meta:get_string("if_expr") or ""
|
|
local then_expr = meta:get_string("then_expr") or ""
|
|
local else_expr = meta:get_string("else_expr") or ""
|
|
local expr = "if "..if_expr.." then return "..then_expr.." else return "..else_expr.." end"
|
|
compile(nvm, expr)
|
|
return nvm.code
|
|
end
|
|
|
|
local function eval(pos, nvm)
|
|
nvm.code = nvm.code or get_code(pos, nvm)
|
|
if nvm.code then
|
|
setfenv(nvm.code, nvm.inp_tbl)
|
|
local res, sts = pcall(nvm.code)
|
|
if res then
|
|
nvm.error = "ok"
|
|
if sts == true and nvm.inp_tbl.outp ~= true then
|
|
nvm.inp_tbl.outp = sts
|
|
return "on"
|
|
elseif sts == false and nvm.inp_tbl.outp ~= false then
|
|
nvm.inp_tbl.outp = sts
|
|
return "off"
|
|
end
|
|
else
|
|
nvm.error = "Error: "..sts
|
|
end
|
|
end
|
|
end
|
|
|
|
local function data(nvm)
|
|
local tbl = {"inp = "..dump(nvm.inp_tbl.inp), "outp = "..dump(nvm.inp_tbl.outp)}
|
|
for k,v in pairs(nvm.inp_tbl) do
|
|
if k ~= "inp" and k ~= "outp" then
|
|
tbl[#tbl+1] = k.." = "..dump(v)
|
|
end
|
|
end
|
|
return table.concat(tbl, ", ")
|
|
end
|
|
|
|
local function formspec(pos, meta)
|
|
local nvm = techage.get_nvm(pos)
|
|
local numbers = meta:get_string("numbers") or ""
|
|
local if_expr = meta:get_string("if_expr") or ""
|
|
local then_expr = meta:get_string("then_expr") or ""
|
|
local else_expr = meta:get_string("else_expr") or ""
|
|
local err = nvm.error or "ok"
|
|
if err ~= "ok" then
|
|
err = string.sub(err, 15)
|
|
end
|
|
err = minetest.formspec_escape(err)
|
|
nvm.inp_tbl = nvm.inp_tbl or {inp = false, outp = false}
|
|
local data = data(nvm)
|
|
return "size[9,8]"..
|
|
"background[0,0;9,1.3;techage_formspec_bg.png]"..
|
|
"field[0.5,0.2;8.5,2;numbers;"..S("Insert destination node number(s)")..";"..numbers.."]" ..
|
|
"label[0,1.4;Variables: "..data.."]"..
|
|
"label[0,2;Valid symbols: not and or true false nil == ~= ( )]"..
|
|
"background[0,2.6;9,4;techage_formspec_bg.png]"..
|
|
"label[0.1,2.8;if]"..
|
|
"field[0.8,2.9;7,1;if_expr;;"..if_expr.."]" ..
|
|
"label[7.6,2.8;then]"..
|
|
"label[0.6,3.8;return]"..
|
|
"field[2,3.9;7,1;then_expr;;"..then_expr.."]" ..
|
|
"label[0.1,4.5;else]"..
|
|
"label[0.6,5.2;return]"..
|
|
"field[2,5.3;7,1;else_expr;;"..else_expr.."]" ..
|
|
"label[0.1,6;end]"..
|
|
"label[0,6.8;Result: "..err.."]"..
|
|
"button[2,7.3;2.5,1;update;"..S("Update").."]"..
|
|
"button[5,7.3;2.5,1;store;"..S("Store").."]"
|
|
end
|
|
|
|
minetest.register_node("techage:ta3_logic", {
|
|
description = S("TA3 Logic Block"),
|
|
tiles = {
|
|
-- up, down, right, left, back, front
|
|
"techage_filling_ta3.png^techage_frame_ta3_top.png",
|
|
"techage_filling_ta3.png^techage_frame_ta3_top.png",
|
|
"techage_filling_ta3.png^techage_frame_ta3.png^techage_appl_logic.png",
|
|
},
|
|
|
|
after_place_node = function(pos, placer)
|
|
local meta = M(pos)
|
|
local nvm = techage.get_nvm(pos)
|
|
nvm.inp_tbl = {inp = false, outp = false}
|
|
logic.after_place_node(pos, placer, "techage:ta3_logic", S("TA3 Logic Block"))
|
|
logic.infotext(meta, S("TA3 Logic Block"))
|
|
meta:set_string("formspec", formspec(pos, meta))
|
|
end,
|
|
|
|
on_receive_fields = function(pos, formname, fields, player)
|
|
if minetest.is_protected(pos, player:get_player_name()) then
|
|
return
|
|
end
|
|
|
|
local meta = M(pos)
|
|
local nvm = techage.get_nvm(pos)
|
|
if fields.numbers and fields.numbers ~= "" then
|
|
if techage.check_numbers(fields.numbers, player:get_player_name()) then
|
|
meta:set_string("numbers", fields.numbers)
|
|
logic.infotext(M(pos), S("TA3 Logic Block"))
|
|
end
|
|
end
|
|
if fields.if_expr and fields.if_expr ~= "" then
|
|
meta:set_string("if_expr", fields.if_expr)
|
|
end
|
|
if fields.then_expr and fields.then_expr ~= "" then
|
|
meta:set_string("then_expr", fields.then_expr)
|
|
end
|
|
if fields.else_expr and fields.else_expr ~= "" then
|
|
meta:set_string("else_expr", fields.else_expr)
|
|
end
|
|
if fields.store then
|
|
get_code(pos, nvm)
|
|
end
|
|
meta:set_string("formspec", formspec(pos, meta))
|
|
end,
|
|
|
|
on_timer = function(pos,elapsed)
|
|
local nvm = techage.get_nvm(pos)
|
|
local topic = eval(pos, nvm)
|
|
if topic then
|
|
local meta = M(pos)
|
|
local own_num = meta:get_string("node_number") or ""
|
|
local numbers = meta:get_string("numbers") or ""
|
|
techage.send_multi(own_num, numbers, topic)
|
|
end
|
|
return false
|
|
end,
|
|
|
|
techage_set_numbers = function(pos, numbers, player_name)
|
|
local meta = M(pos)
|
|
local res = logic.set_numbers(pos, numbers, player_name, S("TA3 Logic Block"))
|
|
meta:set_string("formspec", formspec(pos, meta))
|
|
return res
|
|
end,
|
|
|
|
after_dig_node = function(pos, oldnode, oldmetadata)
|
|
techage.remove_node(pos, oldnode, oldmetadata)
|
|
techage.del_mem(pos)
|
|
end,
|
|
|
|
paramtype2 = "facedir",
|
|
groups = {choppy=2, cracky=2, crumbly=2},
|
|
is_ground_content = false,
|
|
sounds = default.node_sound_wood_defaults(),
|
|
})
|
|
|
|
|
|
minetest.register_craft({
|
|
output = "techage:ta3_logic",
|
|
recipe = {
|
|
{"", "group:wood", ""},
|
|
{"", "default:copper_ingot", "techage:vacuum_tube"},
|
|
{"", "group:wood", ""},
|
|
},
|
|
})
|
|
|
|
techage.register_node({"techage:ta3_logic"}, {
|
|
on_recv_message = function(pos, src, topic, payload)
|
|
local nvm = techage.get_nvm(pos)
|
|
nvm.inp_tbl = nvm.inp_tbl or {outp = false}
|
|
|
|
if topic == "on" then
|
|
nvm.inp_tbl.inp = true
|
|
nvm.inp_tbl["n"..src] = true
|
|
elseif topic == "off" then
|
|
nvm.inp_tbl.inp = false
|
|
nvm.inp_tbl["n"..src] = false
|
|
else
|
|
return "unsupported"
|
|
end
|
|
minetest.get_node_timer(pos):start(0.1)
|
|
end,
|
|
on_node_load = function(pos)
|
|
|
|
end,
|
|
})
|
|
|
|
|