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