446 lines
13 KiB
Lua
446 lines
13 KiB
Lua
--[[
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TechAge
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=======
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Copyright (C) 2019-2020 Joachim Stolberg
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AGPL v3
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See LICENSE.txt for more information
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Forceload block
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]]--
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-- for lazy programmers
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local M = minetest.get_meta
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local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
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local S = techage.S
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-- Global registry so admins can see all forceload blocks, even for offline players
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-- Keys use "flb_<pos>" prefix on techage.storage to avoid collisions with
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-- other users of the shared mod_storage (numbers, nodedata, etc.)
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local function registry_add(pos, owner)
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techage.storage:set_string("flb_" .. P2S(pos), owner)
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end
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local function registry_remove(pos)
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techage.storage:set_string("flb_" .. P2S(pos), "")
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end
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local function registry_get_all()
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local entries = {}
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for key, val in pairs(techage.storage:to_table().fields) do
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if val ~= "" and key:sub(1, 4) == "flb_" then
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local pos = minetest.string_to_pos(key:sub(5))
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if pos then
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entries[#entries+1] = {pos = pos, owner = val}
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end
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end
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end
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table.sort(entries, function(a, b)
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if a.owner ~= b.owner then return a.owner < b.owner end
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return P2S(a.pos) < P2S(b.pos)
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end)
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return entries
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end
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local function calc_area(pos)
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local xpos = (math.floor(pos.x / 16) * 16)
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local ypos = (math.floor(pos.y / 16) * 16)
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local zpos = (math.floor(pos.z / 16) * 16)
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local pos1 = {x=xpos, y=ypos, z=zpos}
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local pos2 = {x=xpos+15, y=ypos+15, z=zpos+15}
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return pos1, pos2
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end
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local function in_list(list, x)
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local pos1 = calc_area(x)
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for _,v in ipairs(list) do
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local pos2 = calc_area(v)
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if vector.equals(pos1, pos2) then return true end
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end
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return false
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end
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local function remove_list_elem(list, x)
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local n = nil
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for idx, v in ipairs(list) do
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if vector.equals(v, x) then
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n = idx
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break
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end
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end
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if n then
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table.remove(list, n)
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end
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return list
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end
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local function chat(player, text)
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minetest.chat_send_player(player:get_player_name(), "[Techage] "..text)
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end
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local function postload_area(pos)
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minetest.log("warning", "[FLB] area "..P2S(pos).." not loaded!")
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if not minetest.forceload_block(pos, true) then
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minetest.after(60, postload_area, pos)
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end
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end
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local function add_pos(pos, player)
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local meta = player:get_meta()
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local lPos = minetest.deserialize(meta:get_string("techage_forceload_blocks")) or {}
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if not in_list(lPos, pos) and (#lPos < techage.max_num_forceload_blocks or
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minetest.global_exists("creative") and creative.is_enabled_for and
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creative.is_enabled_for(player:get_player_name())) then
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lPos[#lPos+1] = pos
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local meta = player:get_meta()
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meta:set_string("techage_forceload_blocks", minetest.serialize(lPos))
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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 del_pos(pos, player)
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local meta = player:get_meta()
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local lPos = minetest.deserialize(meta:get_string("techage_forceload_blocks")) or {}
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lPos = remove_list_elem(lPos, pos)
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if next(lPos) then
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meta:set_string("techage_forceload_blocks", minetest.serialize(lPos))
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else
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meta:set_string("techage_forceload_blocks", "")
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end
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end
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local function get_pos_list(player)
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local meta = player:get_meta()
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return minetest.deserialize(meta:get_string("techage_forceload_blocks")) or {}
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end
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local function set_pos_list(player, lPos)
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local meta = player:get_meta()
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if next(lPos) then
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meta:set_string("techage_forceload_blocks", minetest.serialize(lPos))
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else
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meta:set_string("techage_forceload_blocks", "")
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end
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end
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local function show_flbs(pos, name, range)
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local pos1 = {x=pos.x-range, y=pos.y-range, z=pos.z-range}
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local pos2 = {x=pos.x+range, y=pos.y+range, z=pos.z+range}
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for _,npos in ipairs(minetest.find_nodes_in_area(pos1, pos2, {"techage:forceload", "techage:forceloadtile"})) do
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local _pos1, _pos2 = calc_area(npos)
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local owner = M(npos):get_string("owner")
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techage.mark_region(name, _pos1, _pos2, owner .. " " .. P2S(npos))
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end
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end
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local function get_data(pos, player)
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local pos1, pos2 = calc_area(pos)
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local meta = player:get_meta()
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local num = #minetest.deserialize(meta:get_string("techage_forceload_blocks")) or 0
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local max = techage.max_num_forceload_blocks
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return pos1, pos2, num, max
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end
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local function formspec(name)
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local player = minetest.get_player_by_name(name)
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if player then
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local lPos = get_pos_list(player)
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local tRes = {}
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tRes[#tRes+1] = "#"
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tRes[#tRes+1] = S("Block at pos")
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tRes[#tRes+1] = S("Area from")
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tRes[#tRes+1] = S("Area to")
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tRes[#tRes+1] = S("Status")
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for idx,pos in ipairs(lPos) do
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local pos1, pos2 = calc_area(pos)
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tRes[#tRes+1] = idx
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tRes[#tRes+1] = minetest.formspec_escape(P2S(pos))
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tRes[#tRes+1] = minetest.formspec_escape(P2S(pos1))
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tRes[#tRes+1] = minetest.formspec_escape(P2S(pos2))
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tRes[#tRes+1] = minetest.forceload_block(pos, true) and 'Loaded' or 'Unloaded'
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end
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return "size[9,9]"..
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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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"label[0,0;"..S("List of your Forceload Blocks:").."]"..
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"tablecolumns[text,width=1.8;text,width=12;text,width=12;text,width=12;text,width=12]"..
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"table[0,0.6;8.8,8.4;output;"..table.concat(tRes, ",")..";1]"
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end
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end
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local function on_place(itemstack, placer, pointed_thing)
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if pointed_thing.type ~= "node" then
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return itemstack
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end
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return minetest.rotate_and_place(itemstack, placer, pointed_thing)
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end
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local function after_place_node(pos, placer, itemstack)
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if add_pos(pos, placer) then
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minetest.forceload_block(pos, true)
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local pos1, pos2, num, max = get_data(pos, placer)
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M(pos):set_string("infotext", "Area "..P2S(pos1).." to "..P2S(pos2).." "..S("loaded").."!\n"..
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S("Punch the block to make the area visible."))
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chat(placer, "Area ("..num.."/"..max..") "..P2S(pos1).." to "..P2S(pos2).." "..S("loaded").."!")
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techage.mark_region(placer:get_player_name(), pos1, pos2)
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M(pos):set_string("owner", placer:get_player_name())
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registry_add(pos, placer:get_player_name())
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else
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chat(placer, S("Area already loaded or max. number of Forceload Blocks reached!"))
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minetest.remove_node(pos)
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return itemstack
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end
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end
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local function after_dig_node(pos, oldnode, oldmetadata, digger)
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local player = minetest.get_player_by_name(oldmetadata.fields.owner)
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if player then
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del_pos(pos, player)
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end
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minetest.forceload_free_block(pos, true)
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techage.unmark_region(oldmetadata.fields.owner)
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registry_remove(pos)
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end
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local function on_rightclick(pos, node, clicker, itemstack, pointed_thing)
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local owner = M(pos):get_string("owner")
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local name = clicker:get_player_name()
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if name == owner or minetest.check_player_privs(name, "server") then
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local s = formspec(owner)
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if s then
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minetest.show_formspec(name, "techage:forceload", s)
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end
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end
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end
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local function on_punch(pos, node, puncher, pointed_thing)
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local pos1, pos2 = calc_area(pos)
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techage.switch_region(puncher:get_player_name(), pos1, pos2)
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end
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minetest.register_node("techage:forceload", {
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description = S("Techage Forceload Block"),
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tiles = {
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-- up, down, right, left, back, front
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'techage_filling_ta2.png^techage_frame_ta2_top.png',
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'techage_filling_ta2.png^techage_frame_ta2_top.png',
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{
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name = "techage_filling_ta2.png^techage_frame_ta2_top.png^techage_appl_forceload.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 = 0.5,
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},
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},
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},
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after_place_node = after_place_node,
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after_dig_node = after_dig_node,
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on_rightclick = on_rightclick,
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on_punch = on_punch,
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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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groups = {choppy=2, cracky=2, crumbly=2,
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digtron_protected = 1,
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not_in_creative_inventory = techage.max_num_forceload_blocks == 0 and 1 or 0},
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is_ground_content = false,
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sounds = default.node_sound_wood_defaults(),
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})
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minetest.register_node("techage:forceloadtile", {
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description = S("Techage Forceload Tile"),
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tiles = {
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-- up, down, right, left, back, front
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{
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name = "techage_filling_ta2.png^techage_frame_ta2_top.png^techage_appl_forceload.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 = 0.5,
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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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--{-5/16, -7/16, -5/16, 5/16, -5/16, 5/16},
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{-4/16, -8/16, -4/16, 4/16, -15/32, 4/16},
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},
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},
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on_place = on_place,
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after_place_node = after_place_node,
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after_dig_node = after_dig_node,
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on_rightclick = on_rightclick,
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on_punch = on_punch,
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paramtype = "light",
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paramtype2 = "facedir",
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sunlight_propagates = true,
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groups = {choppy=2, cracky=2, crumbly=2,
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not_in_creative_inventory = techage.max_num_forceload_blocks == 0 and 1 or 0},
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is_ground_content = false,
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sounds = default.node_sound_wood_defaults(),
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})
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if techage.max_num_forceload_blocks > 0 then
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minetest.register_craft({
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output = "techage:forceload",
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recipe = {
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{"group:wood", "", "group:wood"},
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{"default:mese_crystal_fragment", "techage:usmium_nuggets", "default:mese_crystal_fragment"},
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{"group:wood", "techage:iron_ingot", "group:wood"},
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},
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})
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minetest.register_craft({
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type = "shapeless",
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output = "techage:forceloadtile",
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recipe = {"techage:forceload"},
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})
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minetest.register_craft({
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type = "shapeless",
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output = "techage:forceload",
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recipe = {"techage:forceloadtile"},
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})
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end
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minetest.register_on_joinplayer(function(player)
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local lPos = {}
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local name = player:get_player_name()
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for _,pos in ipairs(get_pos_list(player)) do
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local node = techage.get_node_lvm(pos)
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if node.name == "techage:forceload" or node.name == "techage:forceloadtile" then
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if not minetest.forceload_block(pos, true) then
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minetest.after(60, postload_area, pos)
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end
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lPos[#lPos+1] = pos
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-- Populate registry for blocks placed before the registry existed
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if techage.storage:get_string("flb_" .. P2S(pos)) == "" then
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registry_add(pos, name)
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end
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end
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end
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set_pos_list(player, lPos)
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end)
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minetest.register_on_leaveplayer(function(player)
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for _,pos in ipairs(get_pos_list(player)) do
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minetest.forceload_free_block(pos, true)
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end
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end)
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local function admin_formspec()
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local entries = registry_get_all()
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local engine_limit = tonumber(minetest.settings:get("max_forceloaded_blocks")) or 16
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local per_player = techage.max_num_forceload_blocks
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local total = #entries
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local warn
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if total >= engine_limit then
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warn = "label[0,0.5;\27(c@#FF4444)WARNING: Engine limit reached (" ..
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total .. "/" .. engine_limit .. ")! No new forceload blocks can be placed!]"
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elseif total >= math.floor(engine_limit * 0.8) then
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warn = "label[0,0.5;\27(c@#FFA500)Notice: " ..
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total .. " of " .. engine_limit .. " engine-level slots in use (80 %+ full).]"
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else
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warn = "label[0,0.5;Engine limit: " .. engine_limit ..
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" Per-player limit: " .. per_player .. "]"
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end
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local tRes = {}
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tRes[#tRes+1] = "#"
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tRes[#tRes+1] = "Owner"
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tRes[#tRes+1] = "Position"
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tRes[#tRes+1] = "Online"
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for idx, e in ipairs(entries) do
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local online = minetest.get_player_by_name(e.owner) ~= nil
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tRes[#tRes+1] = idx
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tRes[#tRes+1] = minetest.formspec_escape(e.owner)
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tRes[#tRes+1] = minetest.formspec_escape(P2S(e.pos))
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tRes[#tRes+1] = online and "yes" or "no"
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end
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return "size[9,9.5]" ..
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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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"label[0,0;Forceload Blocks: " .. total .. " total | Engine limit: " .. engine_limit ..
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" | Per-player limit: " .. per_player .. "]" ..
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warn ..
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"tablecolumns[text,width=1.8;text,width=10;text,width=10;text,width=5]" ..
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"table[0,1.1;8.8,8.4;flb_admin;" .. table.concat(tRes, ",") .. ";1]"
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end
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minetest.register_on_player_receive_fields(function(player, formname, fields)
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if formname ~= "techage:forceload_admin" then return end
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if fields.flb_admin then
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local event = minetest.explode_table_event(fields.flb_admin)
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if event.type == "DCL" then
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local idx = event.row - 1 -- row 1 is the header
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if idx >= 1 and minetest.check_player_privs(player:get_player_name(), "server") then
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local entries = registry_get_all()
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local entry = entries[idx]
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if entry then
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player:set_pos(entry.pos)
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end
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end
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end
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end
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end)
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minetest.register_chatcommand("forceload_admin", {
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params = "",
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description = "[Admin] Show all forceload blocks on the server; double-click to teleport",
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privs = {server = true},
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func = function(name, param)
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local player = minetest.get_player_by_name(name)
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if player then
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minetest.show_formspec(name, "techage:forceload_admin", admin_formspec())
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end
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end,
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})
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minetest.register_chatcommand("forceload", {
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params = "",
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description = S("Show all forceload blocks in a 64x64x64 range"),
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func = function(name, param)
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local player = minetest.get_player_by_name(name)
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if player then
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local pos = player:get_pos()
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pos = vector.round(pos)
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show_flbs(pos, name, 64)
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end
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end,
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})
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minetest.register_chatcommand("forceload_verify", {
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params = "",
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description = "Checks each forceload block and returns a count of active/placed blocks",
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func = function(name, param)
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local player = minetest.get_player_by_name(name)
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if player then
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local loaded = {}
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local wanted = get_pos_list(player)
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for _,pos in ipairs(wanted) do
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if minetest.forceload_block(pos, true) then
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loaded[#loaded+1] = pos
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end
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end
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minetest.chat_send_player(name, "Found "..#loaded.." out of ".. #wanted .. " force loads")
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end
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end,
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})
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