mesecons/mesecons_microcontroller/init.lua
Kyle d399162fc1 Reduced the number of µC images. Instead of 16 top images, there is one
off image, then four port images that can be overlaid on top of the
blank.
2012-08-24 23:23:44 -07:00

705 lines
20 KiB
Lua

mesecon:add_rules("microcontroller_all", { --flat rules (looks better with nodebox wires connection)
{x = 1, y = 0, z = 0 },
{x = 0, y = 0, z = 1 },
{x = -1, y = 0, z = 0},
{x = 0, y = 0, z = -1}})
EEPROM_SIZE = 255
for a = 0, 1 do
for b = 0, 1 do
for c = 0, 1 do
for d = 0, 1 do
local nodename = "mesecons_microcontroller:microcontroller"..tostring(d)..tostring(c)..tostring(b)..tostring(a)
local top = "jeija_microcontroller_top.png"
if tostring(a) == "1" then
top = top.."^jeija_microcontroller_LED_A.png"
end
if tostring(b) == "1" then
top = top.."^jeija_microcontroller_LED_B.png"
end
if tostring(c) == "1" then
top = top.."^jeija_microcontroller_LED_C.png"
end
if tostring(d) == "1" then
top = top.."^jeija_microcontroller_LED_D.png"
end
if tostring(d)..tostring(c)..tostring(b)..tostring(a) ~= "0000" then
groups = {dig_immediate=2, not_in_creative_inventory=1, mesecon = 3}
else
groups = {dig_immediate=2, mesecon = 3}
end
minetest.register_node(nodename, {
description = "Microcontroller",
drawtype = "nodebox",
tiles = {
top,
"jeija_microcontroller_bottom.png",
"jeija_microcontroller_sides.png",
"jeija_microcontroller_sides.png",
"jeija_microcontroller_sides.png",
"jeija_microcontroller_sides.png"
},
sunlight_propagates = true,
paramtype = "light",
walkable = true,
groups = groups,
drop = '"mesecons_microcontroller:microcontroller0000" 1',
selection_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -5/16, 8/16 },
},
node_box = {
type = "fixed",
fixed = {
{ -8/16, -8/16, -8/16, 8/16, -7/16, 8/16 }, -- bottom slab
{ -5/16, -7/16, -5/16, 5/16, -6/16, 5/16 }, -- circuit board
{ -3/16, -6/16, -3/16, 3/16, -5/16, 3/16 }, -- IC
}
},
on_construct = function(pos)
local meta = minetest.env:get_meta(pos)
meta:set_string("code", "")
meta:set_string("formspec", "size[9,2.5]"..
"field[0.256,-0.2;9,2;code;Code:;]"..
"button[0 ,0.2;1.5,3;band;AND]"..
"button[1.5,0.2;1.5,3;bxor;XOR]"..
"button[3 ,0.2;1.5,3;bnot;NOT]"..
"button[4.5,0.2;1.5,3;bnand;NAND]"..
"button[6 ,0.2;1.5,3;btflop;T-Flop]"..
"button[7.5,0.2;1.5,3;brsflop;RS-Flop]"..
"button_exit[3.5,1;2,3;program;Program]")
meta:set_string("infotext", "Unprogrammed Microcontroller")
meta:set_int("heat", 0)
local r = ""
for i=1, EEPROM_SIZE+1 do r=r.."0" end --Generate a string with EEPROM_SIZE*"0"
meta:set_string("eeprom", r)
end,
on_receive_fields = function(pos, formanme, fields, sender)
local meta = minetest.env:get_meta(pos)
if fields.band then
fields.code = "sbi(C, A&B) :A and B are inputs, C is output"
elseif fields.bxor then
fields.code = "sbi(C, A~B) :A and B are inputs, C is output"
elseif fields.bnot then
fields.code = "sbi(B, !A) :A is input, B is output"
elseif fields.bnand then
fields.code = "sbi(C, !A|!B) :A and B are inputs, C is output"
elseif fields.btflop then
fields.code = "if(A)sbi(1,1); if(!A&#1&B)off(B)sbi(1,0); if(!A&#1&!B)on(B)sbi(1,0); :A is input, B is output (Q), toggles with falling edge"
elseif fields.brsflop then
fields.code = "if(A)on(C);if(B)off(C); :A is S (Set), B is R (Reset), C is output (R dominates)"
elseif fields.program or fields.code then --nothing
else return nil end
meta:set_string("code", fields.code)
meta:set_string("formspec", "size[9,2.5]"..
"field[0.256,-0.2;9,2;code;Code:;"..fields.code.."]"..
"button[0 ,0.2;1.5,3;band;AND]"..
"button[1.5,0.2;1.5,3;bxor;XOR]"..
"button[3 ,0.2;1.5,3;bnot;NOT]"..
"button[4.5,0.2;1.5,3;bnand;NAND]"..
"button[6 ,0.2;1.5,3;btflop;T-Flop]"..
"button[7.5,0.2;1.5,3;brsflop;RS-Flop]"..
"button_exit[3.5,1;2,3;program;Program]")
meta:set_string("infotext", "Programmed Microcontroller")
yc_reset (pos)
update_yc(pos)
end,
})
local rules={}
if (a == 1) then table.insert(rules, {x = -1, y = 0, z = 0}) end
if (b == 1) then table.insert(rules, {x = 0, y = 0, z = 1}) end
if (c == 1) then table.insert(rules, {x = 1, y = 0, z = 0}) end
if (d == 1) then table.insert(rules, {x = 0, y = 0, z = -1}) end
mesecon:add_rules(nodename, rules)
mesecon:register_effector(nodename, nodename, mesecon:get_rules("microcontroller_all"))
if nodename ~= "mesecons_microcontroller:microcontroller0000" then
mesecon:add_receptor_node(nodename, rules)
end
end
end
end
end
minetest.register_craft({
output = 'craft "mesecons_microcontroller:microcontroller0000" 2',
recipe = {
{'mesecons_materials:silicon', 'mesecons_materials:silicon', 'group:mesecon_conductor_craftable'},
{'mesecons_materials:silicon', 'mesecons_materials:silicon', 'group:mesecon_conductor_craftable'},
{'group:mesecon_conductor_craftable', 'group:mesecon_conductor_craftable', ''},
}
})
function yc_reset(pos)
yc_action(pos, {a=false, b=false, c=false, d=false})
local meta = minetest.env:get_meta(pos)
meta:set_int("heat", 0)
meta:set_int("afterid", 0)
local r = ""
for i=1, EEPROM_SIZE+1 do r=r.."0" end --Generate a string with EEPROM_SIZE*"0"
meta:set_string("eeprom", r)
end
function update_yc(pos)
local meta = minetest.env:get_meta(pos)
yc_heat(meta)
minetest.after(0.5, yc_cool, meta)
if (yc_overheat(meta)) then
minetest.env:remove_node(pos)
minetest.after(0.2, yc_overheat_off, pos) --wait for pending parsings
minetest.env:add_item(pos, "mesecons_microcontroller:microcontroller0000")
end
local code = meta:get_string("code")
code = yc_code_remove_commentary(code)
code = string.gsub(code, " ", "") --Remove all spaces
code = string.gsub(code, " ", "") --Remove all tabs
if yc_parsecode(code, pos) == nil then
meta:set_string("infotext", "Code not valid!\n"..code)
else
meta:set_string("infotext", "Working Microcontroller\n"..code)
end
end
--Code Parsing
function yc_code_remove_commentary(code)
is_string = false
for i = 1, #code do
if code:sub(i, i) == '"' then
is_string = (is_string==false) --toggle is_string
end
if code:sub(i, i) == ":" and is_string==false then
return code:sub(1, i-1)
end
end
return code
end
function yc_parsecode(code, pos)
local endi = 1
local Lreal = yc_get_real_portstates(pos)
local Lvirtual = yc_get_virtual_portstates(pos)
if Lvirtual == nil then return nil end
local c
local eeprom = minetest.env:get_meta(pos):get_string("eeprom")
while true do
command, endi = parse_get_command(code, endi)
if command == nil then return nil end
if command == true then break end --end of code
if command == "if" then
r, endi = yc_command_if(code, endi, yc_merge_portstates(Lreal, Lvirtual), eeprom)
if r == nil then return nil end
if r == true then -- nothing
elseif r == false then
endi_new = yc_skip_to_else (code, endi)
if endi_new == nil then --else > not found
endi = yc_skip_to_endif(code, endi)
else
endi = endi_new
end
if endi == nil then return nil end
end
else
params, endi = parse_get_params(code, endi)
if params == nil then return nil end
end
if command == "on" then
L = yc_command_on (params, Lvirtual)
elseif command == "off" then
L = yc_command_off(params, Lvirtual)
elseif command == "print" then
local su = yc_command_print(params, eeprom, yc_merge_portstates(Lreal, Lvirtual))
if su ~= true then return nil end
elseif command == "after" then
local su = yc_command_after(params, pos)
if su == nil then return nil end
elseif command == "sbi" then
new_eeprom, Lvirtual = yc_command_sbi (params, eeprom, yc_merge_portstates(Lreal, Lvirtual), Lvirtual)
if new_eeprom == nil then return nil
else eeprom = new_eeprom end
elseif command == "if" then --nothing
else
return nil
end
if Lvirtual == nil then return nil end
if eeprom == nil then return nil else
minetest.env:get_meta(pos):set_string("eeprom", eeprom) end
end
yc_action(pos, Lvirtual)
return true
end
function parse_get_command(code, starti)
i = starti
s = nil
while s ~= "" do
s = string.sub(code, i, i)
if s == "(" then
return string.sub(code, starti, i-1), i + 1 -- i: ( i+1 after (
end
if s == ";" and starti == i then
starti = starti + 1
i = starti
elseif s == ">" then
starti = yc_skip_to_endif(code, starti)
if starti == nil then return nil end
i = starti
else
i = i + 1
end
end
if starti == i-1 then
return true, true
end
return nil, nil
end
function parse_get_params(code, starti)
i = starti
s = nil
local params = {}
local is_string = false
while s ~= "" do
s = string.sub(code, i, i)
if code:sub(i, i) == '"' then
is_string = (is_string==false) --toggle is_string
end
if s == ")" and is_string == false then
table.insert(params, string.sub(code, starti, i-1)) -- i: ) i+1 after )
return params, i + 1
end
if s == "," and is_string == false then
table.insert(params, string.sub(code, starti, i-1)) -- i: ) i+1 after )
starti = i + 1
end
i = i + 1
end
return nil, nil
end
function yc_parse_get_eeprom_param(cond, starti)
i = starti
s = nil
local addr
while s ~= "" do
s = string.sub(cond, i, i)
if string.find("0123456789", s) == nil or s == "" then
addr = string.sub(cond, starti, i-1) -- i: last number i+1 after last number
return addr, i
end
if s == "," then return nil, nil end
i = i + 1
end
return nil, nil
end
function yc_skip_to_endif(code, starti)
local i = starti
local s = false
local open_ifs = 1
while s ~= nil and s~= "" do
s = code:sub(i, i)
if s == "i" and code:sub(i+1, i+1) == "f" then --if in µCScript
open_ifs = open_ifs + 1
end
if s == ";" then
open_ifs = open_ifs - 1
end
if open_ifs == 0 then
return i + 1
end
i = i + 1
end
return nil
end
function yc_skip_to_else(code, starti)
local i = starti
local s = false
local open_ifs = 1
while s ~= nil and s~= "" do
s = code:sub(i, i)
if s == "i" and code:sub(i+1, i+1) == "f" then --if in µCScript
open_ifs = open_ifs + 1
end
if s == ";" then
open_ifs = open_ifs - 1
end
if open_ifs == 1 and s == ">" then
return i + 1
end
i = i + 1
end
return nil
end
--Commands
function yc_command_on(params, L)
local rules = {}
for i, port in ipairs(params) do
L = yc_set_portstate (port, true, L)
end
return L
end
function yc_command_off(params, L)
local rules = {}
for i, port in ipairs(params) do
L = yc_set_portstate (port, false, L)
end
return L
end
function yc_command_print(params, eeprom, L)
local s = ""
for i, param in ipairs(params) do
if param:sub(1,1) == '"' and param:sub(#param, #param) == '"' then
s = s..param:sub(2, #param-1)
else
r = yc_command_parsecondition(param, L, eeprom)
if r == "1" or r == "0" then
s = s..r
else return nil end
end
end
print(s) --don't remove
return true
end
function yc_command_sbi(params, eeprom, L, Lv)
if params[1]==nil or params[2]==nil or params[3] ~=nil then return nil end
local status = yc_command_parsecondition(params[2], L, eeprom)
if status == nil then return nil, nil end
if string.find("ABCD", params[1])~=nil and #params[1]==1 then --is a port
if status == "1" then
Lv = yc_set_portstate (params[1], true, Lv)
else
Lv = yc_set_portstate (params[1], false, Lv)
end
return eeprom, Lv;
end
--is an eeprom address
new_eeprom = "";
for i=1, #eeprom do
if tonumber(params[1])==i then
new_eeprom = new_eeprom..status
else
new_eeprom = new_eeprom..eeprom:sub(i, i)
end
end
return new_eeprom, Lv
end
-- after (delay)
function yc_command_after(params, pos)
if params[1] == nil or params[2] == nil or params[3] ~= nil then return nil end
--get time (maximum time is 200)
local time = tonumber(params[1])
if time == nil or time > 200 then
return nil
end
--get code in quotes "code"
if string.sub(params[2], 1, 1) ~= '"' or string.sub(params[2], #params[2], #params[2]) ~= '"' then return nil end
local code = string.sub(params[2], 2, #params[2] - 1)
local afterid = math.random(10000)
local meta = minetest.env:get_meta(pos)
meta:set_int("afterid", afterid)
minetest.after(time, yc_command_after_execute, {pos = pos, code = code, afterid = afterid})
return true
end
function yc_command_after_execute(params)
local meta = minetest.env:get_meta(params.pos)
if meta:get_int("afterid") == params.afterid then --make sure the node has not been changed
if yc_parsecode(params.code, params.pos) == nil then
meta:set_string("infotext", "Code in after() not valid!")
else
meta:set_string("infotext", "Working Microcontroller")
end
end
end
--If
function yc_command_if(code, starti, L, eeprom)
local cond, endi = yc_command_if_getcondition(code, starti)
if cond == nil then return nil end
cond = yc_command_parsecondition(cond, L, eeprom)
if cond == "0" then result = false
elseif cond == "1" then result = true
else result = nil end
if result == nil then end
return result, endi --endi from local cond, endi = yc_command_if_getcondition(code, starti)
end
--Condition parsing
function yc_command_if_getcondition(code, starti)
i = starti
s = nil
local brackets = 1 --1 Bracket to close
while s ~= "" do
s = string.sub(code, i, i)
if s == ")" then
brackets = brackets - 1
end
if s == "(" then
brackets = brackets + 1
end
if brackets == 0 then
return string.sub(code, starti, i-1), i + 1 -- i: ( i+1 after (
end
i = i + 1
end
return nil, nil
end
function yc_command_parsecondition(cond, L, eeprom)
cond = string.gsub(cond, "A", tonumber(L.a and 1 or 0))
cond = string.gsub(cond, "B", tonumber(L.b and 1 or 0))
cond = string.gsub(cond, "C", tonumber(L.c and 1 or 0))
cond = string.gsub(cond, "D", tonumber(L.d and 1 or 0))
local i = 1
local l = string.len(cond)
while i<=l do
local s = cond:sub(i,i)
if s == "#" then
addr, endi = yc_parse_get_eeprom_param(cond, i+1)
buf = yc_eeprom_read(tonumber(addr), eeprom)
if buf == nil then return nil end
local call = cond:sub(i, endi-1)
cond = string.gsub(cond, call, buf)
i = 0
l = string.len(cond)
end
i = i + 1
end
cond = string.gsub(cond, "!0", "1")
cond = string.gsub(cond, "!1", "0")
local i = 2
local l = string.len(cond)
while i<=l do
local s = cond:sub(i,i)
local b = tonumber(cond:sub(i-1, i-1))
local a = tonumber(cond:sub(i+1, i+1))
if cond:sub(i+1, i+1) == nil then break end
if s == "=" then
if a==nil then return nil end
if a == b then buf = "1" end
if a ~= b then buf = "0" end
cond = string.gsub(cond, b..s..a, buf)
i = 1
l = string.len(cond)
end
i = i + 1
end
local i = 2
local l = string.len(cond)
while i<=l do
local s = cond:sub(i,i)
local b = tonumber(cond:sub(i-1, i-1))
local a = tonumber(cond:sub(i+1, i+1))
if cond:sub(i+1, i+1) == nil then break end
if s == "&" then
if a==nil then return nil end
local buf = ((a==1) and (b==1))
if buf == true then buf = "1" end
if buf == false then buf = "0" end
cond = string.gsub(cond, b..s..a, buf)
i = 1
l = string.len(cond)
end
if s == "|" then
if a==nil then return nil end
local buf = ((a == 1) or (b == 1))
if buf == true then buf = "1" end
if buf == false then buf = "0" end
cond = string.gsub(cond, b..s..a, buf)
i = 1
l = string.len(cond)
end
if s == "~" then
if a==nil then return nil end
local buf = (((a == 1) or (b == 1)) and not((a==1) and (b==1)))
if buf == true then buf = "1" end
if buf == false then buf = "0" end
cond = string.gsub(cond, b..s..a, buf)
i = 1
l = string.len(cond)
end
i = i + 1
end
return cond
end
--Virtual-Hardware functions
function yc_eeprom_read(number, eeprom)
if number == nil then return nil, nil end
value = eeprom:sub(number, number)
if value == nil then return nil, nil end
return value, endi
end
--Real I/O functions
function yc_action(pos, L) --L-->Lvirtual
Lv = yc_get_virtual_portstates(pos)
local meta = minetest.env:get_meta(pos)
local code = meta:get_string("code")
local afterid = meta:get_int("afterid")
local heat = meta:get_int("heat")
local eeprom = meta:get_string("eeprom")
local infotext = meta:get_string("infotext")
local formspec = meta:get_string("formspec")
local name = "mesecons_microcontroller:microcontroller"
..tonumber(L.d and 1 or 0)
..tonumber(L.c and 1 or 0)
..tonumber(L.b and 1 or 0)
..tonumber(L.a and 1 or 0)
minetest.env:add_node(pos, {name=name})
local meta = minetest.env:get_meta(pos)
meta:set_string("code", code)
meta:set_int("heat", heat)
meta:set_int("afterid", afterid)
meta:set_string("eeprom", eeprom)
meta:set_string("infotext", infotext)
meta:set_string("formspec", formspec)
yc_action_setports(pos, L, Lv, rules)
end
function yc_action_setports(pos, L, Lv)
local name = "mesecons_microcontroller:microcontroller"
local rules
if Lv.a ~= L.a then
rules = mesecon:get_rules(name.."0001")
if L.a == true then mesecon:receptor_on(pos, rules)
else mesecon:receptor_off(pos, rules) end
end
if Lv.b ~= L.b then
rules = mesecon:get_rules(name.."0010")
if L.b == true then mesecon:receptor_on(pos, rules)
else mesecon:receptor_off(pos, rules) end
end
if Lv.c ~= L.c then
rules = mesecon:get_rules(name.."0100")
if L.c == true then mesecon:receptor_on(pos, rules)
else mesecon:receptor_off(pos, rules) end
end
if Lv.d ~= L.d then
rules = mesecon:get_rules(name.."1000")
if L.d == true then mesecon:receptor_on(pos, rules)
else mesecon:receptor_off(pos, rules) end
end
end
function yc_set_portstate(port, state, L)
if port == "A" then L.a = state
elseif port == "B" then L.b = state
elseif port == "C" then L.c = state
elseif port == "D" then L.d = state
else return nil end
return L
end
function yc_get_real_portstates(pos)
rulesA = mesecon:get_rules("mesecons_microcontroller:microcontroller0001")
rulesB = mesecon:get_rules("mesecons_microcontroller:microcontroller0010")
rulesC = mesecon:get_rules("mesecons_microcontroller:microcontroller0100")
rulesD = mesecon:get_rules("mesecons_microcontroller:microcontroller1000")
L = {
a = mesecon:is_power_on({x=pos.x+rulesA[1].x, y=pos.y+rulesA[1].y, z=pos.z+rulesA[1].z}) and mesecon:rules_link({x=pos.x+rulesA[1].x, y=pos.y+rulesA[1].y, z=pos.z+rulesA[1].z}, pos),
b = mesecon:is_power_on({x=pos.x+rulesB[1].x, y=pos.y+rulesB[1].y, z=pos.z+rulesB[1].z}) and mesecon:rules_link({x=pos.x+rulesB[1].x, y=pos.y+rulesB[1].y, z=pos.z+rulesB[1].z}, pos),
c = mesecon:is_power_on({x=pos.x+rulesC[1].x, y=pos.y+rulesC[1].y, z=pos.z+rulesC[1].z}) and mesecon:rules_link({x=pos.x+rulesC[1].x, y=pos.y+rulesC[1].y, z=pos.z+rulesC[1].z}, pos),
d = mesecon:is_power_on({x=pos.x+rulesD[1].x, y=pos.y+rulesD[1].y, z=pos.z+rulesD[1].z}) and mesecon:rules_link({x=pos.x+rulesD[1].x, y=pos.y+rulesD[1].y, z=pos.z+rulesD[1].z}, pos)
}
return L
end
function yc_get_virtual_portstates(pos)
name = minetest.env:get_node(pos).name
b, a = string.find(name, ":microcontroller")
if a == nil then return nil end
a = a + 1
Lvirtual = {a=false, b=false, c=false, d=false}
if name:sub(a , a ) == "1" then Lvirtual.d = true end
if name:sub(a+1, a+1) == "1" then Lvirtual.c = true end
if name:sub(a+2, a+2) == "1" then Lvirtual.b = true end
if name:sub(a+3, a+3) == "1" then Lvirtual.a = true end
return Lvirtual
end
function yc_merge_portstates(Lreal, Lvirtual)
local L = {a=false, b=false, c=false, d=false}
if Lvirtual.a or Lreal.a then L.a = true end
if Lvirtual.b or Lreal.b then L.b = true end
if Lvirtual.c or Lreal.c then L.c = true end
if Lvirtual.d or Lreal.d then L.d = true end
return L
end
--"Overheat" protection
function yc_heat(meta)
h = meta:get_int("heat")
if h ~= nil then
meta:set_int("heat", h + 1)
end
end
function yc_cool(meta)
h = meta:get_int("heat")
if h ~= nil then
meta:set_int("heat", h - 1)
end
end
function yc_overheat(meta)
h = meta:get_int("heat")
if h == nil then return true end -- if nil the overheat
if h>30 then
return true
else
return false
end
end
function yc_overheat_off(pos)
rules = mesecon:get_rules("mesecons_microcontroller:microcontroller1111")
mesecon:receptor_off(pos, rules);
end
mesecon:register_on_signal_change(function(pos, node)
if string.find(node.name, "mesecons_microcontroller:microcontroller")~=nil then
update_yc(pos)
end
end)
minetest.register_on_dignode(function(pos, node)
if string.find(node.name, "mesecons_microcontroller:microcontroller") then
rules = mesecon:get_rules(node.name)
mesecon:receptor_off(pos, rules)
end
end)