techage/lua_controller/server.lua
2022-01-04 19:40:27 +01:00

326 lines
8.4 KiB
Lua

--[[
Techage
=======
Copyright (C) 2020 Joachim Stolberg
AGPL v3
See LICENSE.txt for more information
server.lua:
]]--
-- for lazy programmers
local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
local M = minetest.get_meta
local SERVER_CAPA = 5000
local function formspec(nvm)
local names = table.concat(nvm.names or {}, " ")
return "size[9,4]"..
default.gui_bg..
default.gui_bg_img..
default.gui_slots..
"field[0.2,1;9,1;names;Allowed user names (space separated):;"..names.."]" ..
"button_exit[3.5,2.5;2,1;exit;Save]"
end
minetest.register_node("techage:ta4_server", {
description = "TA4 Lua Server",
tiles = {
-- up, down, right, left, back, front
"techage_server_top.png",
"techage_server_top.png",
"techage_server_side.png",
"techage_server_side.png^[transformFX",
"techage_server_back.png",
{
image = "techage_server_front.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1,
},
},
},
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{ -3/16, -8/16, -7/16, 3/16, 6/16, 7/16},
},
},
after_place_node = function(pos, placer)
local meta = M(pos)
local nvm = techage.get_nvm(pos)
local number = techage.add_node(pos, "techage:ta4_server")
meta:set_string("owner", placer:get_player_name())
meta:set_string("number", number)
meta:set_string("formspec", formspec(nvm))
nvm.size = 0
meta:set_string("infotext", "Server "..number..": ("..nvm.size.."/"..SERVER_CAPA..")")
minetest.get_node_timer(pos):start(20)
end,
on_receive_fields = function(pos, formname, fields, player)
local meta = M(pos)
local nvm = techage.get_nvm(pos)
local owner = meta:get_string("owner")
if player:get_player_name() == owner then
if fields.names and fields.names ~= "" then
nvm.names = string.split(fields.names, " ")
meta:set_string("formspec", formspec(nvm))
end
end
end,
on_dig = function(pos, node, puncher, pointed_thing)
if minetest.is_protected(pos, puncher:get_player_name()) then
return
end
techage.del_mem(pos)
minetest.node_dig(pos, node, puncher, pointed_thing)
end,
after_dig_node = function(pos, oldnode, oldmetadata)
techage.remove_node(pos, oldnode, oldmetadata)
end,
on_timer = function(pos, elasped)
local meta = M(pos)
local nvm = techage.get_nvm(pos)
nvm.size = nvm.size or 0
local number = meta:get_string("number")
meta:set_string("infotext", "Server "..number..": ("..nvm.size.."/"..SERVER_CAPA..")")
return true
end,
paramtype = "light",
sunlight_propagates = true,
use_texture_alpha = techage.CLIP,
paramtype2 = "facedir",
groups = {choppy=1, cracky=1, crumbly=1},
is_ground_content = false,
sounds = default.node_sound_stone_defaults(),
})
minetest.register_craft({
output = "techage:ta4_server",
recipe = {
{"default:steel_ingot", "dye:black", "default:steel_ingot"},
{"techage:ta4_ramchip", "default:copper_ingot", "techage:ta4_ramchip"},
{"techage:ta4_ramchip", "techage:ta4_wlanchip", "techage:ta4_ramchip"},
},
})
minetest.register_node("techage:ta4_server2", {
description = "TA4 Lua Rack Server",
tiles = {
-- up, down, right, left, back, front
"techage_server2_top.png",
"techage_server2_top.png",
"techage_server2_side.png",
"techage_server2_side.png^[transformFX",
"techage_server2_back.png",
{
image = "techage_server2_front.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1,
},
},
},
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{-0.5, -0.5, -0.5, -0.4375, -0.4375, 0.5},
{-0.5, 0.4375, -0.5, -0.4375, 0.5, 0.5},
{0.4375, -0.5, -0.5, 0.5, -0.4375, 0.5},
{0.4375, 0.4375, -0.5, 0.5, 0.5, 0.5},
{-0.5, -0.5, -0.375, -0.4375, 0.5, -0.3125},
{-0.5, -0.5, 0.3125, -0.4375, 0.5, 0.375},
{0.4375, -0.5, 0.3125, 0.5, 0.5, 0.375},
{0.4375, -0.5, -0.375, 0.5, 0.5, -0.3125},
{-0.4375, -0.3125, -0.4375, 0.4375, 0.3125, 0.4375},
{0.4375, -0.0625, -0.4375, 0.5, 0, 0.4375},
{-0.5, -0.0625, -0.4375, -0.4375, 0, 0.4375},
}
},
after_place_node = function(pos, placer)
local meta = M(pos)
local nvm = techage.get_nvm(pos)
local number = techage.add_node(pos, "techage:ta4_server2")
meta:set_string("owner", placer:get_player_name())
meta:set_string("number", number)
meta:set_string("formspec", formspec(nvm))
nvm.size = 0
meta:set_string("infotext", "Server "..number..": ("..nvm.size.."/"..SERVER_CAPA..")")
minetest.get_node_timer(pos):start(20)
end,
on_receive_fields = function(pos, formname, fields, player)
local meta = M(pos)
local nvm = techage.get_nvm(pos)
local owner = meta:get_string("owner")
if player:get_player_name() == owner then
if fields.names and fields.names ~= "" then
nvm.names = string.split(fields.names, " ")
meta:set_string("formspec", formspec(nvm))
end
end
end,
on_dig = function(pos, node, puncher, pointed_thing)
if minetest.is_protected(pos, puncher:get_player_name()) then
return
end
techage.del_mem(pos)
minetest.node_dig(pos, node, puncher, pointed_thing)
end,
after_dig_node = function(pos, oldnode, oldmetadata)
techage.remove_node(pos, oldnode, oldmetadata)
end,
on_timer = function(pos, elasped)
local meta = M(pos)
local nvm = techage.get_nvm(pos)
nvm.size = nvm.size or 0
local number = meta:get_string("number")
meta:set_string("infotext", "Server "..number..": ("..nvm.size.."/"..SERVER_CAPA..")")
return true
end,
paramtype = "light",
sunlight_propagates = true,
use_texture_alpha = techage.CLIP,
paramtype2 = "facedir",
groups = {choppy=1, cracky=1, crumbly=1},
is_ground_content = false,
sounds = default.node_sound_stone_defaults(),
})
minetest.register_craft({
type = "shapeless",
output = "techage:ta4_server2",
recipe = {"techage:ta4_server"},
})
minetest.register_craft({
type = "shapeless",
output = "techage:ta4_server",
recipe = {"techage:ta4_server2"},
})
local function calc_size(v)
if type(v) == "number" then
return 1
elseif type(v) == "boolean" then
return 1
elseif v == nil then
return 0
elseif type(v) == "string" then
return #v
elseif v.MemSize then
return v.MemSize
else
return nil
end
end
local function get_memory(num, name)
local info = techage.get_node_info(num)
if info and info.pos then
local nvm = techage.get_nvm(info.pos)
nvm.names = nvm.names or {}
for _,n in ipairs(nvm.names) do
if name == n then
nvm.data = nvm.data or {}
return nvm
end
end
end
end
local function write_value(nvm, key, item)
if nvm and nvm.size < SERVER_CAPA then
if nvm.data[key] then
nvm.size = nvm.size - calc_size(nvm.data[key])
end
if type(item) == "table" then
item = safer_lua.datastruct_to_table(item)
end
nvm.size = nvm.size + calc_size(item)
nvm.data[key] = item
return true
end
return false
end
local function read_value(nvm, key)
local item = nvm.data[key]
if type(item) == "table" then
item = safer_lua.table_to_datastruct(item)
end
return item
end
techage.register_node({"techage:ta4_server", "techage:ta4_server2"}, {
on_recv_message = function(pos, src, topic, payload)
return "unsupported"
end,
on_node_load = function(pos)
minetest.get_node_timer(pos):start(20)
end,
})
techage.lua_ctlr.register_function("server_read", {
cmnd = function(self, num, key)
if type(key) == "string" then
local nvm = get_memory(num, self.meta.owner)
if nvm then
return read_value(nvm, key)
end
else
self.error("Invalid server_read parameter")
end
end,
help = " $server_read(num, key)\n"..
" Read a value from the server.\n"..
" 'key' must be a string.\n"..
' example: state = $server_read("123", "state")'
})
techage.lua_ctlr.register_action("server_write", {
cmnd = function(self, num, key, value)
if type(key) == "string" then
local nvm = get_memory(num, self.meta.owner)
if nvm then
return write_value(nvm, key, value)
end
else
self.error("Invalid server_write parameter")
end
end,
help = " $server_write(num, key, value)\n"..
" Store a value on the server under the key 'key'.\n"..
" 'key' must be a string. 'value' can be either a\n"..
" number, string, boolean, nil or data structure.\n"..
" return value: true if successful or false\n"..
' example: res = $server_write("123", "state", state)'
})