MoreMesecons/moremesecons_luacontroller_tool/init.lua

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--[[
vector_extras there: https://github.com/HybridDog/vector_extras
]]
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local templates = {MoreMesecons = {
logic = [[-- AND
port.a = pin.b and pin.c
-- OR
port.a = pin.b or pin.c
-- NOT
port.a = not pin.b
-- NAND
port.a = not (pin.b and pin.c)
-- NOR
port.a = not (pin.b or pin.c)
-- XOR
port.a = pin.b ~= pin.c
-- XNOR / NXOR
port.a = pin.b == pin.c]],
digilinesth = [[digiline_send(channel, msg)
if event.type == "digiline" then
print(event.channel)
print(event.msg)
end]],
}}
local file_path = minetest.get_worldpath().."/MoreMesecons_lctt"
-- load templates from a compressed file
local templates_file = io.open(file_path, "rb")
if templates_file then
local templates_raw = templates_file:read("*all")
io.close(templates_file)
if templates_raw
and templates_raw ~= "" then
for name,t in pairs(minetest.deserialize(minetest.decompress(templates_raw))) do
templates[name] = t
end
end
end
-- the save function
local function save_to_file()
local templates_file = io.open(file_path, "w")
if not templates_file then
minetest.log("error", "[MoreMesecons] Could not open file for saving!")
return
end
local player_templates = table.copy(templates)
player_templates.MoreMesecons = nil
templates_file:write(minetest.compress(minetest.serialize(player_templates)))
io.close(templates_file)
end
-- save doesn't save more than every 10s to disallow spamming
local saving
local function save()
if saving then
return
end
saving = true
minetest.after(16, function()
save_to_file()
saving = false
end)
end
minetest.register_on_shutdown(function()
if saving then
save_to_file()
end
end)
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-- used for the dropdown formspec element
local function fill_formspec_dropdown_list(t, selected)
local it,num = {},1
for i in pairs(t) do
it[num] = i
num = num+1
end
num = num-1
table.sort(it)
local txt = ""
local selected_id
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for i = 1,num do
local t = it[i]
if not selected_id
and t == selected then
selected_id = i
end
txt = txt..t -- add available indices
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if i ~= num then
txt = txt..","
end
end
return txt..";"..(selected_id or 1).."]"
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--spec = string.sub(spec, 1, -2)
end
local pdata = {}
local function get_selection_formspec(pname, selected_template)
-- templates might be removed by someone while changing sth in formspec
local pl_templates = templates[pname]
if not pl_templates then
pname = next(templates)
pl_templates = templates[pname]
end
local template_code = pl_templates[selected_template]
if not template_code then
selected_template = next(pl_templates)
template_code = pl_templates[selected_template]
end
local spec = "size[10,10]"..
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-- show available players, field player_name, current player name is the selected one
"dropdown[0,0;5;player_name;"..
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fill_formspec_dropdown_list(templates, pname)..
-- show templates of pname
"dropdown[5,0;5;template_name;"..
fill_formspec_dropdown_list(pl_templates, selected_template)..
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-- show selected template
"textarea[0,1;10.5,8.5;template_code;template code:;"..template_code.."]"..
-- save name
"field[5,9.5;5,0;save_name;savename;"..selected_template.."]"..
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"button[0,10;2,0;button;set]"..
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"button[2,10;2,0;button;add]"..
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"button[5,10;2,0;button;save]"
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return spec
end
-- tests if the node is a luacontroller
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local function is_luacontroller(pos)
if not pos then
return false
end
return string.match(minetest.get_node(pos).name, "mesecons_luacontroller:luacontroller%d%d%d%d")
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end
-- do not localize the function directly here to support possible overwritten luacontrollers
local luac_def = minetest.registered_nodes["mesecons_luacontroller:luacontroller0000"]
local function set_luacontroller_code(pos, code)
luac_def.on_receive_fields(pos, nil, {code=code, program=""})
end
minetest.register_tool("moremesecons_luacontroller_tool:lctt", {
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description = "luacontroller template tool",
inventory_image = "moremesecons_luacontroller_tool.png",
on_use = function(_, player, pt)
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if not player
or not pt then
return
end
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local pname = player:get_player_name()
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local pos = pt.under
if not is_luacontroller(pos) then
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minetest.chat_send_player(pname, "You can use the luacontroller template tool only on luacontroller nodes.")
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return
end
pdata[pname] = pdata[pname] or {
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pos = pos,
player_name = pname,
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template_name = next(templates[pname] or templates[next(templates)]),
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}
minetest.show_formspec(pname, "moremesecons:luacontroller_tool", get_selection_formspec(pdata[pname].player_name, pdata[pname].template_name))
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end,
})
--[[ Luacontroller reset_meta function, by Jeija
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local function reset_meta(pos, code, errmsg)
local meta = minetest.get_meta(pos)
meta:set_string("code", code)
code = minetest.formspec_escape(code or "")
errmsg = minetest.formspec_escape(errmsg or "")
meta:set_string("formspec", "size[10,8]"..
"background[-0.2,-0.25;10.4,8.75;jeija_luac_background.png]"..
"textarea[0.2,0.6;10.2,5;code;;"..code.."]"..
"image_button[3.75,6;2.5,1;jeija_luac_runbutton.png;program;]"..
"image_button_exit[9.72,-0.25;0.425,0.4;jeija_close_window.png;exit;]"..
"label[0.1,5;"..errmsg.."]")
meta:set_int("heat", 0)
meta:set_int("luac_id", math.random(1, 65535))
end--]]
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-- used to avoid possibly crashes
local function get_code_or_nil(pname, player_name, template_name)
local player_templates = templates[player_name]
if not player_templates then
minetest.chat_send_player(pname, "error: "..player_name.." doesn't have templates now")
return
end
local code = player_templates[template_name]
if not code then
minetest.chat_send_player(pname, "error: "..template_name.." doesn't exist now")
return
end
return code
end
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minetest.register_on_player_receive_fields(function(player, formname, fields)
if formname ~= "moremesecons:luacontroller_tool"
or fields.quit
or not player then
return
end
--minetest.chat_send_all(dump(fields))
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local pname = player:get_player_name()
if fields.player_name
and fields.player_name ~= pdata[pname].player_name then
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-- show available templates of that player
minetest.show_formspec(pname, "moremesecons:luacontroller_tool",
get_selection_formspec(fields.player_name, pdata[pname].template_name)
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)
pdata[pname].player_name = fields.player_name
return
end
if fields.template_name
and fields.template_name ~= pdata[pname].template_name then
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-- show selected template of that player
minetest.show_formspec(pname, "moremesecons:luacontroller_tool",
get_selection_formspec(pdata[pname].player_name, fields.template_name)
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)
pdata[pname].template_name = fields.template_name
return
end
local pos = pdata[pname].pos
if not is_luacontroller(pos) then
-- this can happen
return
end
local meta = minetest.get_meta(pos)
if fields.button == "set" then
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-- replace the code of the luacontroller with the template
local code = get_code_or_nil(pname, fields.player_name, fields.template_name)
if code then
set_luacontroller_code(pos, code)
minetest.chat_send_player(pname, "code set to template at "..vector.pos_to_string(pos))
end
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return
end
if fields.button == "add" then
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-- add the template to the end of the code of the luacontroller
local code = get_code_or_nil(pname, fields.player_name, fields.template_name)
if code then
set_luacontroller_code(pos, meta:get_string("code").."\r"..code)
minetest.chat_send_player(pname, "code added to luacontroller at "..vector.pos_to_string(pos))
end
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return
end
if fields.button == "save" then
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-- save the template, when you try to change others' templates, yours become changed
local savename = fields.template_name
if fields.save_name
and fields.save_name ~= ""
and fields.save_name ~= savename then
savename = minetest.formspec_escape(fields.save_name)
end
local code = fields.template_code
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if not code then
minetest.chat_send_player(pname, "error: template code missing")
return
end
templates[pname] = templates[pname] or {}
if code == "" then
templates[pname][savename] = nil
if not next(templates[pname]) then
templates[pname] = nil
end
minetest.chat_send_player(pname, "template removed")
save()
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return
end
code = minetest.formspec_escape(code)
if templates[pname][savename] == code then
minetest.chat_send_player(pname, "template not saved because it didn't change")
return
end
templates[pname][savename] = code
save()
minetest.chat_send_player(pname, "template "..pname.."/"..savename.." saved")
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return
end
end)