forked from minetest-mods/mesecons
Add an EEPROM to the Microcontroller
This commit is contained in:
Jeija
parent
7ed60c75b9
commit
2d94a08d2e
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@ -1,3 +1,5 @@
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EEPROM_SIZE = 255
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minetest.register_node("mesecons_microcontroller:microcontroller", {
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description = "Microcontroller",
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drawtype = "nodebox",
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@ -23,6 +25,9 @@ minetest.register_node("mesecons_microcontroller:microcontroller", {
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"field[0.256,0.5;8,1;code;Code:;]"..
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"button_exit[3,0.5;2,2;program;Program]")
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meta:set_string("infotext", "Unprogrammed Microcontroller")
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local r = ""
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for i=1, EEPROM_SIZE+1 do r=r.."0" end --Generate a string with EEPROM_SIZE*"0"
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meta:set_string("eeprom", r)
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end,
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on_receive_fields = function(pos, formanme, fields, sender)
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if fields.program then
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@ -52,6 +57,10 @@ function reset_yc(pos)
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mesecon:receptor_off(pos, mesecon:get_rules("microcontrollerB"))
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mesecon:receptor_off(pos, mesecon:get_rules("microcontrollerC"))
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mesecon:receptor_off(pos, mesecon:get_rules("microcontrollerD"))
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local meta = minetest.env:get_meta(pos)
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local r = ""
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for i=1, EEPROM_SIZE+1 do r=r.."0" end --Generate a string with EEPROM_SIZE*"0"
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meta:set_string("eeprom", r)
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end
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function update_yc(pos)
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@ -70,12 +79,13 @@ function parse_yccode(code, pos)
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local endi = 1
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local L = yc_get_portstates(pos)
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local c
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local eeprom = minetest.env:get_meta(pos):get_string("eeprom")
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while true do
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command, endi = parse_get_command(code, endi)
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if command == nil then return nil end
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if command == true then break end
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if command == "if" then
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r, endi = yc_command_if(code, endi, L)
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r, endi = yc_command_if(code, endi, L, eeprom)
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if r == nil then return nil end
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if r == true then -- nothing
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elseif r == false then
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@ -90,11 +100,15 @@ function parse_yccode(code, pos)
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L = yc_command_on (params, L)
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elseif command == "off" then
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L = yc_command_off(params, L)
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elseif command == "sbi" then
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eeprom = yc_command_sbi (params, eeprom)
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elseif command == "if" then --nothing
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else
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return nil
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end
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if L == nil then return nil end
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if eeprom == nil then return nil else
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minetest.env:get_meta(pos):set_string("eeprom", eeprom) end
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end
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yc_action(pos, L)
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return true
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@ -140,6 +154,22 @@ function parse_get_params(code, starti)
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return nil, nil
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end
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function yc_parse_get_eeprom_params(code, starti)
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i = starti
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s = nil
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local params = {}
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while s ~= "" do
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s = string.sub(code, i, i)
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if s == ">" then
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table.insert(params, string.sub(code, starti, i-1)) -- i: ) i+1 after )
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return params, i + 1
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end
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if s == "," then return nil, nil end
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i = i + 1
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end
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return nil, nil
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end
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function yc_command_on(params, L)
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local rules = {}
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for i, port in ipairs(params) do
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@ -156,11 +186,25 @@ function yc_command_off(params, L)
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return L
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end
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function yc_command_if(code, starti, L)
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function yc_command_sbi(params, eeprom)
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if params[1]==nil or params[2]==nil or params[3] ~=nil or tonumber(params[1])==nil or tonumber(params[2])==nil then return nil end
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if tonumber(params[1])>EEPROM_SIZE or tonumber(params[1])<1 or (tonumber(params[2])~=1 and tonumber(params[2]~=0)) then return nil end
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new_eeprom = "";
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for i=1, #eeprom do
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if tonumber(params[1])==i then
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new_eeprom = new_eeprom..params[2]
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else
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new_eeprom = new_eeprom..eeprom:sub(i, i)
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end
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end
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return new_eeprom
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end
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function yc_command_if(code, starti, L, eeprom)
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local cond, endi = yc_command_if_getcondition(code, starti)
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if cond == nil then return nil end
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cond = yc_command_if_parsecondition(cond, L)
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cond = yc_command_if_parsecondition(cond, L, eeprom)
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if cond == "0" then result = false
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elseif cond == "1" then result = true
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@ -171,17 +215,28 @@ end
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function yc_command_if_getcondition(code, starti)
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i = starti
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s = nil
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local brackets = 1 --1 Bracket to close
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while s ~= "" do
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s = string.sub(code, i, i)
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if s == ")" then
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return string.sub(code, starti, i-1), i + 1 -- i: (; i+1 after (;
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brackets = brackets - 1
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end
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if s == "(" then
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brackets = brackets + 1
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end
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if brackets == 0 then
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return string.sub(code, starti, i-1), i + 1 -- i: ( i+1 after (
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end
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i = i + 1
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end
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return nil, nil
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end
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function yc_command_if_parsecondition(cond, L)
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function yc_command_if_parsecondition(cond, L, eeprom)
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cond = string.gsub(cond, "A", tostring(L.a and 1 or 0))
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cond = string.gsub(cond, "B", tonumber(L.b and 1 or 0))
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cond = string.gsub(cond, "C", tonumber(L.c and 1 or 0))
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@ -190,6 +245,22 @@ function yc_command_if_parsecondition(cond, L)
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cond = string.gsub(cond, "!0", "1")
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cond = string.gsub(cond, "!1", "0")
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local i = 1
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local l = string.len(cond)
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while i<=l do
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local s = cond:sub(i,i)
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if s == "<" then
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params, endi = yc_parse_get_eeprom_params(cond, i+1)
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buf = yc_eeprom_read(tonumber(params[1]), eeprom)
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if buf == nil then return nil end
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local call = cond:sub(i, endi-1)
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cond = string.gsub(cond, call, buf)
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i = 0
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l = string.len(cond)
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end
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i = i + 1
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end
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local i = 2
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local l = string.len(cond)
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while i<=l do
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@ -207,7 +278,7 @@ function yc_command_if_parsecondition(cond, L)
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i = i + 1
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end
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local i = 2
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local i = 2
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local l = string.len(cond)
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while i<=l do
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local s = cond:sub(i,i)
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@ -243,6 +314,13 @@ function yc_command_if_parsecondition(cond, L)
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return cond
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end
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function yc_eeprom_read(number, eeprom)
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if params == nil then return nil, nil end
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value = eeprom:sub(params[1], number)
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if value == nil then return nil, nil end
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return value, endi
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end
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function yc_get_port_rules(port)
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local rules = nil
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if port == "A" then
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