1312 lines
37 KiB
Lua
1312 lines
37 KiB
Lua
--
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-- This file contains built-in stuff in Minetest implemented in Lua.
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--
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-- It is always loaded and executed after registration of the C API,
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-- before loading and running any mods.
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--
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--
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-- Override some Lua library functions
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--
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print = minetest.debug
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--
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-- Define some random basic things
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--
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function basic_dump2(o)
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if type(o) == "number" then
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return tostring(o)
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elseif type(o) == "string" then
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return string.format("%q", o)
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elseif type(o) == "boolean" then
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return tostring(o)
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elseif type(o) == "function" then
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return "<function>"
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elseif type(o) == "userdata" then
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return "<userdata>"
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elseif type(o) == "nil" then
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return "nil"
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else
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error("cannot dump a " .. type(o))
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return nil
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end
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end
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function dump2(o, name, dumped)
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name = name or "_"
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dumped = dumped or {}
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io.write(name, " = ")
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if type(o) == "number" or type(o) == "string" or type(o) == "boolean"
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or type(o) == "function" or type(o) == "nil"
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or type(o) == "userdata" then
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io.write(basic_dump2(o), "\n")
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elseif type(o) == "table" then
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if dumped[o] then
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io.write(dumped[o], "\n")
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else
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dumped[o] = name
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io.write("{}\n") -- new table
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for k,v in pairs(o) do
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local fieldname = string.format("%s[%s]", name, basic_dump2(k))
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dump2(v, fieldname, dumped)
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end
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end
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else
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error("cannot dump a " .. type(o))
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return nil
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end
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end
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function dump(o, dumped)
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dumped = dumped or {}
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if type(o) == "number" then
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return tostring(o)
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elseif type(o) == "string" then
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return string.format("%q", o)
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elseif type(o) == "table" then
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if dumped[o] then
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return "<circular reference>"
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end
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dumped[o] = true
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local t = {}
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for k,v in pairs(o) do
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t[#t+1] = "" .. k .. " = " .. dump(v, dumped)
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end
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return "{" .. table.concat(t, ", ") .. "}"
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elseif type(o) == "boolean" then
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return tostring(o)
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elseif type(o) == "function" then
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return "<function>"
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elseif type(o) == "userdata" then
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return "<userdata>"
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elseif type(o) == "nil" then
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return "nil"
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else
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error("cannot dump a " .. type(o))
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return nil
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end
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end
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function string:split(sep)
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local sep, fields = sep or ",", {}
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local pattern = string.format("([^%s]+)", sep)
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self:gsub(pattern, function(c) fields[#fields+1] = c end)
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return fields
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end
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function string:trim()
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return (self:gsub("^%s*(.-)%s*$", "%1"))
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end
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assert(string.trim("\n \t\tfoo\t ") == "foo")
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--
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-- Item definition helpers
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--
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function minetest.inventorycube(img1, img2, img3)
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img2 = img2 or img1
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img3 = img3 or img1
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return "[inventorycube"
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.. "{" .. img1:gsub("%^", "&")
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.. "{" .. img2:gsub("%^", "&")
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.. "{" .. img3:gsub("%^", "&")
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end
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function minetest.pos_to_string(pos)
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return "(" .. pos.x .. "," .. pos.y .. "," .. pos.z .. ")"
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end
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function minetest.get_pointed_thing_position(pointed_thing, above)
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if pointed_thing.type == "node" then
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if above then
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-- The position where a node would be placed
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return pointed_thing.above
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else
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-- The position where a node would be dug
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return pointed_thing.under
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end
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elseif pointed_thing.type == "object" then
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obj = pointed_thing.ref
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if obj ~= nil then
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return obj:getpos()
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else
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return nil
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end
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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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function minetest.dir_to_facedir(dir)
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if math.abs(dir.x) > math.abs(dir.z) then
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if dir.x < 0 then
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return 3
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else
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return 1
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end
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else
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if dir.z < 0 then
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return 2
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else
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return 0
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end
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end
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end
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function minetest.dir_to_wallmounted(dir)
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if math.abs(dir.y) > math.max(math.abs(dir.x), math.abs(dir.z)) then
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if dir.y < 0 then
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return 1
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else
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return 0
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end
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elseif math.abs(dir.x) > math.abs(dir.z) then
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if dir.x < 0 then
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return 3
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else
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return 2
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end
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else
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if dir.z < 0 then
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return 5
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else
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return 4
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end
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end
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end
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function minetest.get_node_drops(nodename, toolname)
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local drop = ItemStack({name=nodename}):get_definition().drop
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if drop == nil then
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-- default drop
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return {ItemStack({name=nodename})}
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elseif type(drop) == "string" then
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-- itemstring drop
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return {ItemStack(drop)}
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elseif drop.items == nil then
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-- drop = {} to disable default drop
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return {}
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end
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-- Extended drop table
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local got_items = {}
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local got_count = 0
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local _, item, tool
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for _, item in ipairs(drop.items) do
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local good_rarity = true
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local good_tool = true
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if item.rarity ~= nil then
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good_rarity = item.rarity < 1 or math.random(item.rarity) == 1
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end
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if item.tools ~= nil then
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good_tool = false
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for _, tool in ipairs(item.tools) do
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if tool:sub(1, 1) == '~' then
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good_tool = toolname:find(tool:sub(2)) ~= nil
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else
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good_tool = toolname == tool
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end
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if good_tool then
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break
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end
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end
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end
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if good_rarity and good_tool then
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got_count = got_count + 1
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for _, add_item in ipairs(item.items) do
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got_items[#got_items+1] = add_item
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end
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if drop.max_items ~= nil and got_count == drop.max_items then
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break
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end
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end
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end
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return got_items
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end
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function minetest.item_place_node(itemstack, placer, pointed_thing)
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local item = itemstack:peek_item()
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local def = itemstack:get_definition()
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if def.type == "node" and pointed_thing.type == "node" then
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local pos = pointed_thing.above
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local oldnode = minetest.env:get_node(pos)
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local olddef = ItemStack({name=oldnode.name}):get_definition()
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if not olddef.buildable_to then
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minetest.log("info", placer:get_player_name() .. " tried to place"
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.. " node in invalid position " .. minetest.pos_to_string(pos)
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.. ", replacing " .. oldnode.name)
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return
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end
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minetest.log("action", placer:get_player_name() .. " places node "
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.. def.name .. " at " .. minetest.pos_to_string(pos))
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local newnode = {name = def.name, param1 = 0, param2 = 0}
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-- Calculate direction for wall mounted stuff like torches and signs
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if def.paramtype2 == 'wallmounted' then
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local under = pointed_thing.under
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local above = pointed_thing.above
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local dir = {x = under.x - above.x, y = under.y - above.y, z = under.z - above.z}
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newnode.param2 = minetest.dir_to_wallmounted(dir)
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-- Calculate the direction for furnaces and chests and stuff
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elseif def.paramtype2 == 'facedir' then
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local playerpos = placer:getpos()
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local dir = {x = pos.x - playerpos.x, y = pos.y - playerpos.y, z = pos.z - playerpos.z}
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newnode.param2 = minetest.dir_to_facedir(dir)
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minetest.log("action", "facedir: " .. newnode.param2)
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end
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-- Add node and update
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minetest.env:add_node(pos, newnode)
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-- Set metadata owner
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if def.metadata_name ~= "" then
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minetest.env:get_meta(pos):set_owner(placer:get_player_name())
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end
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-- Run script hook
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local _, callback
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for _, callback in ipairs(minetest.registered_on_placenodes) do
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callback(pos, newnode, placer)
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end
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itemstack:take_item()
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end
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return itemstack
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end
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function minetest.item_place_object(itemstack, placer, pointed_thing)
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local pos = minetest.get_pointed_thing_position(pointed_thing, true)
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if pos ~= nil then
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local item = itemstack:take_item()
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minetest.env:add_item(pos, item)
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end
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return itemstack
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end
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function minetest.item_place(itemstack, placer, pointed_thing)
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if itemstack:get_definition().type == "node" then
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return minetest.item_place_node(itemstack, placer, pointed_thing)
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else
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return minetest.item_place_object(itemstack, placer, pointed_thing)
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end
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end
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function minetest.item_drop(itemstack, dropper, pos)
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minetest.env:add_item(pos, itemstack)
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return ""
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end
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function minetest.item_eat(hp_change, replace_with_item)
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return function(itemstack, user, pointed_thing) -- closure
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if itemstack:take_item() ~= nil then
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user:set_hp(user:get_hp() + hp_change)
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itemstack:add_item(replace_with_item) -- note: replace_with_item is optional
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end
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return itemstack
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end
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end
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function minetest.node_punch(pos, node, puncher)
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-- Run script hook
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local _, callback
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for _, callback in ipairs(minetest.registered_on_punchnodes) do
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callback(pos, node, puncher)
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end
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end
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function minetest.node_dig(pos, node, digger)
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minetest.debug("node_dig")
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local def = ItemStack({name=node.name}):get_definition()
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if not def.diggable then
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minetest.debug("not diggable")
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minetest.log("info", digger:get_player_name() .. " tried to dig "
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.. node.name .. " which is not diggable "
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.. minetest.pos_to_string(pos))
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return
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end
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local meta = minetest.env:get_meta(pos)
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if meta ~= nil and not meta:get_allow_removal() then
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minetest.debug("dig prevented by metadata")
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minetest.log("info", digger:get_player_name() .. " tried to dig "
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.. node.name .. ", but removal is disabled by metadata "
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.. minetest.pos_to_string(pos))
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return
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end
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minetest.log('action', digger:get_player_name() .. " digs "
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.. node.name .. " at " .. minetest.pos_to_string(pos))
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if not minetest.setting_getbool("creative_mode") then
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local wielded = digger:get_wielded_item()
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local drops = minetest.get_node_drops(node.name, wielded:get_name())
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-- Wear out tool
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tp = wielded:get_tool_capabilities()
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dp = minetest.get_dig_params(def.groups, tp)
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wielded:add_wear(dp.wear)
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digger:set_wielded_item(wielded)
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-- Add dropped items
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local _, dropped_item
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for _, dropped_item in ipairs(drops) do
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digger:get_inventory():add_item("main", dropped_item)
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end
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end
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-- Remove node and update
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minetest.env:remove_node(pos)
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-- Run script hook
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local _, callback
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for _, callback in ipairs(minetest.registered_on_dignodes) do
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callback(pos, node, digger)
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end
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end
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--
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-- Item definition defaults
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--
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minetest.nodedef_default = {
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-- Item properties
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type="node",
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-- name intentionally not defined here
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description = "",
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groups = {},
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inventory_image = "",
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wield_image = "",
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wield_scale = {x=1,y=1,z=1},
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stack_max = 99,
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usable = false,
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liquids_pointable = false,
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tool_capabilities = nil,
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-- Interaction callbacks
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on_place = minetest.item_place,
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on_drop = minetest.item_drop,
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on_use = nil,
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on_punch = minetest.node_punch,
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on_dig = minetest.node_dig,
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-- Node properties
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drawtype = "normal",
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visual_scale = 1.0,
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tile_images = {""},
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special_materials = {
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{image="", backface_culling=true},
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{image="", backface_culling=true},
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},
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alpha = 255,
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post_effect_color = {a=0, r=0, g=0, b=0},
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paramtype = "none",
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paramtype2 = "none",
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is_ground_content = false,
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sunlight_propagates = false,
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walkable = true,
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pointable = true,
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diggable = true,
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climbable = false,
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buildable_to = false,
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metadata_name = "",
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liquidtype = "none",
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liquid_alternative_flowing = "",
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liquid_alternative_source = "",
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liquid_viscosity = 0,
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light_source = 0,
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damage_per_second = 0,
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selection_box = {type="regular"},
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legacy_facedir_simple = false,
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legacy_wallmounted = false,
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}
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minetest.craftitemdef_default = {
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type="craft",
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-- name intentionally not defined here
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description = "",
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groups = {},
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inventory_image = "",
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wield_image = "",
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wield_scale = {x=1,y=1,z=1},
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stack_max = 99,
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liquids_pointable = false,
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tool_capabilities = nil,
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-- Interaction callbacks
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on_place = minetest.item_place,
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on_drop = minetest.item_drop,
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on_use = nil,
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}
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minetest.tooldef_default = {
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type="tool",
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-- name intentionally not defined here
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description = "",
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groups = {},
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inventory_image = "",
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wield_image = "",
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wield_scale = {x=1,y=1,z=1},
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stack_max = 1,
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liquids_pointable = false,
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tool_capabilities = nil,
|
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-- Interaction callbacks
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on_place = minetest.item_place,
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on_drop = minetest.item_drop,
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on_use = nil,
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}
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minetest.noneitemdef_default = { -- This is used for the hand and unknown items
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type="none",
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-- name intentionally not defined here
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description = "",
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groups = {},
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inventory_image = "",
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wield_image = "",
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wield_scale = {x=1,y=1,z=1},
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stack_max = 99,
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liquids_pointable = false,
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tool_capabilities = nil,
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-- Interaction callbacks
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on_place = nil,
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on_drop = nil,
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on_use = nil,
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}
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|
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--
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-- Make raw registration functions inaccessible to anyone except builtin.lua
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--
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local register_item_raw = minetest.register_item_raw
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minetest.register_item_raw = nil
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|
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local register_alias_raw = minetest.register_alias_raw
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minetest.register_item_raw = nil
|
|
|
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--
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-- Item / entity / ABM registration functions
|
|
--
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minetest.registered_abms = {}
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minetest.registered_entities = {}
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minetest.registered_items = {}
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minetest.registered_nodes = {}
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minetest.registered_craftitems = {}
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minetest.registered_tools = {}
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minetest.registered_aliases = {}
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|
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-- For tables that are indexed by item name:
|
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-- If table[X] does not exist, default to table[minetest.registered_aliases[X]]
|
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local function set_alias_metatable(table)
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setmetatable(table, {
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__index = function(name)
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return rawget(table, minetest.registered_aliases[name])
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end
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})
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end
|
|
set_alias_metatable(minetest.registered_items)
|
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set_alias_metatable(minetest.registered_nodes)
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|
set_alias_metatable(minetest.registered_craftitems)
|
|
set_alias_metatable(minetest.registered_tools)
|
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|
|
-- These item names may not be used because they would interfere
|
|
-- with legacy itemstrings
|
|
local forbidden_item_names = {
|
|
MaterialItem = true,
|
|
MaterialItem2 = true,
|
|
MaterialItem3 = true,
|
|
NodeItem = true,
|
|
node = true,
|
|
CraftItem = true,
|
|
craft = true,
|
|
MBOItem = true,
|
|
ToolItem = true,
|
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tool = true,
|
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}
|
|
|
|
local function check_modname_prefix(name)
|
|
if name:sub(1,1) == ":" then
|
|
-- Escape the modname prefix enforcement mechanism
|
|
return name:sub(2)
|
|
else
|
|
-- Modname prefix enforcement
|
|
local expected_prefix = minetest.get_current_modname() .. ":"
|
|
if name:sub(1, #expected_prefix) ~= expected_prefix then
|
|
error("Name " .. name .. " does not follow naming conventions: " ..
|
|
"\"modname:\" or \":\" prefix required")
|
|
end
|
|
local subname = name:sub(#expected_prefix+1)
|
|
if subname:find("[^abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]") then
|
|
error("Name " .. name .. " does not follow naming conventions: " ..
|
|
"contains unallowed characters")
|
|
end
|
|
return name
|
|
end
|
|
end
|
|
|
|
function minetest.register_abm(spec)
|
|
-- Add to minetest.registered_abms
|
|
minetest.registered_abms[#minetest.registered_abms+1] = spec
|
|
end
|
|
|
|
function minetest.register_entity(name, prototype)
|
|
-- Check name
|
|
if name == nil then
|
|
error("Unable to register entity: Name is nil")
|
|
end
|
|
name = check_modname_prefix(tostring(name))
|
|
|
|
prototype.name = name
|
|
prototype.__index = prototype -- so that it can be used as a metatable
|
|
|
|
-- Add to minetest.registered_entities
|
|
minetest.registered_entities[name] = prototype
|
|
end
|
|
|
|
function minetest.register_item(name, itemdef)
|
|
-- Check name
|
|
if name == nil then
|
|
error("Unable to register item: Name is nil")
|
|
end
|
|
name = check_modname_prefix(tostring(name))
|
|
if forbidden_item_names[name] then
|
|
error("Unable to register item: Name is forbidden: " .. name)
|
|
end
|
|
itemdef.name = name
|
|
|
|
-- Apply defaults and add to registered_* table
|
|
if itemdef.type == "node" then
|
|
setmetatable(itemdef, {__index = minetest.nodedef_default})
|
|
minetest.registered_nodes[itemdef.name] = itemdef
|
|
elseif itemdef.type == "craft" then
|
|
setmetatable(itemdef, {__index = minetest.craftitemdef_default})
|
|
minetest.registered_craftitems[itemdef.name] = itemdef
|
|
elseif itemdef.type == "tool" then
|
|
setmetatable(itemdef, {__index = minetest.tooldef_default})
|
|
minetest.registered_tools[itemdef.name] = itemdef
|
|
elseif itemdef.type == "none" then
|
|
setmetatable(itemdef, {__index = minetest.noneitemdef_default})
|
|
else
|
|
error("Unable to register item: Type is invalid: " .. dump(itemdef))
|
|
end
|
|
|
|
-- Flowing liquid uses param2
|
|
if itemdef.type == "node" and itemdef.liquidtype == "flowing" then
|
|
itemdef.paramtype2 = "flowingliquid"
|
|
end
|
|
|
|
-- BEGIN Legacy stuff
|
|
if itemdef.cookresult_itemstring ~= nil and itemdef.cookresult_itemstring ~= "" then
|
|
minetest.register_craft({
|
|
type="cooking",
|
|
output=itemdef.cookresult_itemstring,
|
|
recipe=itemdef.name,
|
|
cooktime=itemdef.furnace_cooktime
|
|
})
|
|
end
|
|
if itemdef.furnace_burntime ~= nil and itemdef.furnace_burntime >= 0 then
|
|
minetest.register_craft({
|
|
type="fuel",
|
|
recipe=itemdef.name,
|
|
burntime=itemdef.furnace_burntime
|
|
})
|
|
end
|
|
-- END Legacy stuff
|
|
|
|
-- Disable all further modifications
|
|
getmetatable(itemdef).__newindex = {}
|
|
|
|
--minetest.log("Registering item: " .. itemdef.name)
|
|
minetest.registered_items[itemdef.name] = itemdef
|
|
minetest.registered_aliases[itemdef.name] = nil
|
|
register_item_raw(itemdef)
|
|
end
|
|
|
|
function minetest.register_node(name, nodedef)
|
|
nodedef.type = "node"
|
|
minetest.register_item(name, nodedef)
|
|
end
|
|
|
|
function minetest.register_craftitem(name, craftitemdef)
|
|
craftitemdef.type = "craft"
|
|
|
|
-- BEGIN Legacy stuff
|
|
if craftitemdef.inventory_image == nil and craftitemdef.image ~= nil then
|
|
craftitemdef.inventory_image = craftitemdef.image
|
|
end
|
|
-- END Legacy stuff
|
|
|
|
minetest.register_item(name, craftitemdef)
|
|
end
|
|
|
|
function minetest.register_tool(name, tooldef)
|
|
tooldef.type = "tool"
|
|
tooldef.stack_max = 1
|
|
|
|
-- BEGIN Legacy stuff
|
|
if tooldef.inventory_image == nil and tooldef.image ~= nil then
|
|
tooldef.inventory_image = tooldef.image
|
|
end
|
|
if tooldef.tool_capabilities == nil and
|
|
(tooldef.full_punch_interval ~= nil or
|
|
tooldef.basetime ~= nil or
|
|
tooldef.dt_weight ~= nil or
|
|
tooldef.dt_crackiness ~= nil or
|
|
tooldef.dt_crumbliness ~= nil or
|
|
tooldef.dt_cuttability ~= nil or
|
|
tooldef.basedurability ~= nil or
|
|
tooldef.dd_weight ~= nil or
|
|
tooldef.dd_crackiness ~= nil or
|
|
tooldef.dd_crumbliness ~= nil or
|
|
tooldef.dd_cuttability ~= nil) then
|
|
tooldef.tool_capabilities = {
|
|
full_punch_interval = tooldef.full_punch_interval,
|
|
basetime = tooldef.basetime,
|
|
dt_weight = tooldef.dt_weight,
|
|
dt_crackiness = tooldef.dt_crackiness,
|
|
dt_crumbliness = tooldef.dt_crumbliness,
|
|
dt_cuttability = tooldef.dt_cuttability,
|
|
basedurability = tooldef.basedurability,
|
|
dd_weight = tooldef.dd_weight,
|
|
dd_crackiness = tooldef.dd_crackiness,
|
|
dd_crumbliness = tooldef.dd_crumbliness,
|
|
dd_cuttability = tooldef.dd_cuttability,
|
|
}
|
|
end
|
|
-- END Legacy stuff
|
|
|
|
minetest.register_item(name, tooldef)
|
|
end
|
|
|
|
function minetest.register_alias(name, convert_to)
|
|
if forbidden_item_names[name] then
|
|
error("Unable to register alias: Name is forbidden: " .. name)
|
|
end
|
|
if minetest.registered_items[name] ~= nil then
|
|
minetest.log("WARNING: Not registering alias, item with same name" ..
|
|
" is already defined: " .. name .. " -> " .. convert_to)
|
|
else
|
|
--minetest.log("Registering alias: " .. name .. " -> " .. convert_to)
|
|
minetest.registered_aliases[name] = convert_to
|
|
register_alias_raw(name, convert_to)
|
|
end
|
|
end
|
|
|
|
-- Alias the forbidden item names to "" so they can't be
|
|
-- created via itemstrings (e.g. /give)
|
|
local name
|
|
for name in pairs(forbidden_item_names) do
|
|
minetest.registered_aliases[name] = ""
|
|
register_alias_raw(name, "")
|
|
end
|
|
|
|
|
|
-- Deprecated:
|
|
-- Aliases for minetest.register_alias (how ironic...)
|
|
--minetest.alias_node = minetest.register_alias
|
|
--minetest.alias_tool = minetest.register_alias
|
|
--minetest.alias_craftitem = minetest.register_alias
|
|
|
|
--
|
|
-- Built-in node definitions. Also defined in C.
|
|
--
|
|
|
|
minetest.register_item(":unknown", {
|
|
type = "none",
|
|
description = "Unknown Item",
|
|
inventory_image = "unknown_item.png",
|
|
on_place = minetest.item_place,
|
|
on_drop = minetest.item_drop,
|
|
})
|
|
|
|
minetest.register_node(":air", {
|
|
description = "Air (you hacker you!)",
|
|
inventory_image = "unknown_block.png",
|
|
wield_image = "unknown_block.png",
|
|
drawtype = "airlike",
|
|
paramtype = "light",
|
|
sunlight_propagates = true,
|
|
walkable = false,
|
|
pointable = false,
|
|
diggable = false,
|
|
buildable_to = true,
|
|
air_equivalent = true,
|
|
})
|
|
|
|
minetest.register_node(":ignore", {
|
|
description = "Ignore (you hacker you!)",
|
|
inventory_image = "unknown_block.png",
|
|
wield_image = "unknown_block.png",
|
|
drawtype = "airlike",
|
|
paramtype = "none",
|
|
sunlight_propagates = false,
|
|
walkable = false,
|
|
pointable = false,
|
|
diggable = false,
|
|
buildable_to = true, -- A way to remove accidentally placed ignores
|
|
air_equivalent = true,
|
|
})
|
|
|
|
-- The hand (bare definition)
|
|
minetest.register_item(":", {
|
|
type = "none",
|
|
})
|
|
|
|
--
|
|
-- Default material types
|
|
--
|
|
function digprop_err()
|
|
minetest.log("info", debug.traceback())
|
|
minetest.log("info", "WARNING: The minetest.digprop_* functions are obsolete and need to be replaced by item groups.")
|
|
end
|
|
|
|
minetest.digprop_constanttime = digprop_err
|
|
minetest.digprop_stonelike = digprop_err
|
|
minetest.digprop_dirtlike = digprop_err
|
|
minetest.digprop_gravellike = digprop_err
|
|
minetest.digprop_woodlike = digprop_err
|
|
minetest.digprop_leaveslike = digprop_err
|
|
minetest.digprop_glasslike = digprop_err
|
|
|
|
--
|
|
-- Creative inventory
|
|
--
|
|
|
|
minetest.creative_inventory = {}
|
|
|
|
minetest.add_to_creative_inventory = function(itemstring)
|
|
table.insert(minetest.creative_inventory, itemstring)
|
|
end
|
|
|
|
--
|
|
-- Callback registration
|
|
--
|
|
|
|
local function make_registration()
|
|
local t = {}
|
|
local registerfunc = function(func) table.insert(t, func) end
|
|
return t, registerfunc
|
|
end
|
|
|
|
minetest.registered_on_chat_messages, minetest.register_on_chat_message = make_registration()
|
|
minetest.registered_globalsteps, minetest.register_globalstep = make_registration()
|
|
minetest.registered_on_placenodes, minetest.register_on_placenode = make_registration()
|
|
minetest.registered_on_dignodes, minetest.register_on_dignode = make_registration()
|
|
minetest.registered_on_punchnodes, minetest.register_on_punchnode = make_registration()
|
|
minetest.registered_on_generateds, minetest.register_on_generated = make_registration()
|
|
minetest.registered_on_newplayers, minetest.register_on_newplayer = make_registration()
|
|
minetest.registered_on_dieplayers, minetest.register_on_dieplayer = make_registration()
|
|
minetest.registered_on_respawnplayers, minetest.register_on_respawnplayer = make_registration()
|
|
minetest.registered_on_joinplayers, minetest.register_on_joinplayer = make_registration()
|
|
minetest.registered_on_leaveplayers, minetest.register_on_leaveplayer = make_registration()
|
|
|
|
--
|
|
-- Misc. API functions
|
|
--
|
|
|
|
minetest.timers_to_add = {}
|
|
minetest.timers = {}
|
|
minetest.register_globalstep(function(dtime)
|
|
for _, timer in ipairs(minetest.timers_to_add) do
|
|
table.insert(minetest.timers, timer)
|
|
end
|
|
minetest.timers_to_add = {}
|
|
for index, timer in ipairs(minetest.timers) do
|
|
timer.time = timer.time - dtime
|
|
if timer.time <= 0 then
|
|
timer.func(timer.param)
|
|
table.remove(minetest.timers,index)
|
|
end
|
|
end
|
|
end)
|
|
|
|
function minetest.after(time, func, param)
|
|
table.insert(minetest.timers_to_add, {time=time, func=func, param=param})
|
|
end
|
|
|
|
function minetest.check_player_privs(name, privs)
|
|
local player_privs = minetest.get_player_privs(name)
|
|
local missing_privileges = {}
|
|
for priv, val in pairs(privs) do
|
|
if val then
|
|
if not player_privs[priv] then
|
|
table.insert(missing_privileges, priv)
|
|
end
|
|
end
|
|
end
|
|
if #missing_privileges > 0 then
|
|
return false, missing_privileges
|
|
end
|
|
return true, ""
|
|
end
|
|
|
|
function minetest.get_connected_players()
|
|
-- This could be optimized a bit, but leave that for later
|
|
local list = {}
|
|
for _, obj in pairs(minetest.env:get_objects_inside_radius({x=0,y=0,z=0}, 1000000)) do
|
|
if obj:get_player_name() then
|
|
table.insert(list, obj)
|
|
end
|
|
end
|
|
return list
|
|
end
|
|
|
|
function minetest.hash_node_position(pos)
|
|
return (pos.z+32768)*65536*65536 + (pos.y+32768)*65536 + pos.x+32768
|
|
end
|
|
|
|
--
|
|
-- Privileges
|
|
--
|
|
|
|
minetest.registered_privileges = {}
|
|
function minetest.register_privilege(name, description)
|
|
minetest.registered_privileges[name] = description
|
|
end
|
|
|
|
minetest.register_privilege("interact", "Can interact with things and modify the world")
|
|
minetest.register_privilege("teleport", "Can use /teleport command")
|
|
minetest.register_privilege("bring", "Can teleport other players")
|
|
minetest.register_privilege("settime", "Can use /time")
|
|
minetest.register_privilege("privs", "Can modify privileges")
|
|
minetest.register_privilege("server", "Can do server maintenance stuff")
|
|
minetest.register_privilege("shout", "Can speak in chat")
|
|
minetest.register_privilege("ban", "Can ban and unban players")
|
|
minetest.register_privilege("give", "Can use /give and /giveme")
|
|
minetest.register_privilege("password", "Can use /setpassword and /clearpassword")
|
|
|
|
--
|
|
-- Chat commands
|
|
--
|
|
|
|
minetest.chatcommands = {}
|
|
function minetest.register_chatcommand(cmd, def)
|
|
def = def or {}
|
|
def.params = def.params or ""
|
|
def.description = def.description or ""
|
|
def.privs = def.privs or {}
|
|
minetest.chatcommands[cmd] = def
|
|
end
|
|
|
|
-- Register the help command
|
|
minetest.register_chatcommand("help", {
|
|
privs = {},
|
|
params = "(nothing)/all/privs/<cmd>",
|
|
description = "Get help for commands or list privileges",
|
|
func = function(name, param)
|
|
local format_help_line = function(cmd, def)
|
|
local msg = "/"..cmd
|
|
if def.params and def.params ~= "" then msg = msg .. " " .. def.params end
|
|
if def.description and def.description ~= "" then msg = msg .. ": " .. def.description end
|
|
return msg
|
|
end
|
|
if param == "" then
|
|
local msg = ""
|
|
cmds = {}
|
|
for cmd, def in pairs(minetest.chatcommands) do
|
|
if minetest.check_player_privs(name, def.privs) then
|
|
table.insert(cmds, cmd)
|
|
end
|
|
end
|
|
minetest.chat_send_player(name, "Available commands: "..table.concat(cmds, " "))
|
|
minetest.chat_send_player(name, "Use '/help <cmd>' to get more information, or '/help all' to list everything.")
|
|
elseif param == "all" then
|
|
minetest.chat_send_player(name, "Available commands:")
|
|
for cmd, def in pairs(minetest.chatcommands) do
|
|
if minetest.check_player_privs(name, def.privs) then
|
|
minetest.chat_send_player(name, format_help_line(cmd, def))
|
|
end
|
|
end
|
|
elseif param == "privs" then
|
|
minetest.chat_send_player(name, "Available privileges:")
|
|
for priv, desc in pairs(minetest.registered_privileges) do
|
|
minetest.chat_send_player(name, priv..": "..desc)
|
|
end
|
|
else
|
|
local cmd = param
|
|
def = minetest.chatcommands[cmd]
|
|
if not def then
|
|
minetest.chat_send_player(name, "Command not available: "..cmd)
|
|
else
|
|
minetest.chat_send_player(name, format_help_line(cmd, def))
|
|
end
|
|
end
|
|
end,
|
|
})
|
|
|
|
-- Register C++ commands without functions
|
|
minetest.register_chatcommand("me", {params = nil, description = "chat action (eg. /me orders a pizza)"})
|
|
minetest.register_chatcommand("status", {description = "print server status line"})
|
|
minetest.register_chatcommand("shutdown", {params = "", description = "shutdown server", privs = {server=true}})
|
|
minetest.register_chatcommand("setting", {params = "<name> = <value>", description = "set line in configuration file", privs = {server=true}})
|
|
minetest.register_chatcommand("clearobjects", {params = "", description = "clear all objects in world", privs = {server=true}})
|
|
minetest.register_chatcommand("time", {params = "<0...24000>", description = "set time of day", privs = {settime=true}})
|
|
minetest.register_chatcommand("ban", {params = "<name>", description = "ban IP of player", privs = {ban=true}})
|
|
minetest.register_chatcommand("unban", {params = "<name/ip>", description = "remove IP ban", privs = {ban=true}})
|
|
|
|
-- Register some other commands
|
|
minetest.register_chatcommand("privs", {
|
|
params = "<name>",
|
|
description = "print out privileges of player",
|
|
func = function(name, param)
|
|
if param == "" then
|
|
param = name
|
|
else
|
|
if not minetest.check_player_privs(name, {privs=true}) then
|
|
minetest.chat_send_player(name, "Privileges of "..param.." are hidden from you.")
|
|
end
|
|
end
|
|
privs = {}
|
|
for priv, _ in pairs(minetest.get_player_privs(param)) do
|
|
table.insert(privs, priv)
|
|
end
|
|
minetest.chat_send_player(name, "Privileges of "..param..": "..table.concat(privs, " "))
|
|
end,
|
|
})
|
|
minetest.register_chatcommand("grant", {
|
|
params = "<name> <privilege>",
|
|
description = "Give privilege to player",
|
|
privs = {privs=true},
|
|
func = function(name, param)
|
|
local grantname, grantprivstr = string.match(param, "([^ ]+) (.+)")
|
|
if not grantname or not grantprivstr then
|
|
minetest.chat_send_player(name, "Invalid parameters (see /help grant)")
|
|
return
|
|
end
|
|
local grantprivs = minetest.string_to_privs(grantprivstr)
|
|
local privs = minetest.get_player_privs(grantname)
|
|
for priv, _ in pairs(grantprivs) do
|
|
privs[priv] = true
|
|
end
|
|
minetest.set_player_privs(grantname, privs)
|
|
end,
|
|
})
|
|
minetest.register_chatcommand("revoke", {
|
|
params = "<name> <privilege>",
|
|
description = "Remove privilege from player",
|
|
privs = {privs=true},
|
|
func = function(name, param)
|
|
local revokename, revokeprivstr = string.match(param, "([^ ]+) (.+)")
|
|
if not revokename or not revokeprivstr then
|
|
minetest.chat_send_player(name, "Invalid parameters (see /help revoke)")
|
|
return
|
|
end
|
|
local revokeprivs = minetest.string_to_privs(revokeprivstr)
|
|
local privs = minetest.get_player_privs(revokename)
|
|
for priv, _ in pairs(revokeprivs) do
|
|
table.remove(privs, priv)
|
|
end
|
|
minetest.set_player_privs(revokename, privs)
|
|
end,
|
|
})
|
|
minetest.register_chatcommand("setpassword", {
|
|
params = "<name> <password>",
|
|
description = "set given password",
|
|
privs = {password=true},
|
|
func = function(name, param)
|
|
if param == "" then
|
|
minetest.chat_send_player(name, "Password field required")
|
|
return
|
|
end
|
|
minetest.set_player_password(name, param)
|
|
minetest.chat_send_player(name, "Password set")
|
|
end,
|
|
})
|
|
minetest.register_chatcommand("clearpassword", {
|
|
params = "<name>",
|
|
description = "set empty password",
|
|
privs = {password=true},
|
|
func = function(name, param)
|
|
minetest.set_player_password(name, '')
|
|
minetest.chat_send_player(name, "Password cleared")
|
|
end,
|
|
})
|
|
|
|
minetest.register_chatcommand("teleport", {
|
|
params = "<X>,<Y>,<Z> | <to_name> | <name> <X>,<Y>,<Z> | <name> <to_name>",
|
|
description = "teleport to given position",
|
|
privs = {teleport=true},
|
|
func = function(name, param)
|
|
-- Returns (pos, true) if found, otherwise (pos, false)
|
|
local function find_free_position_near(pos)
|
|
local tries = {
|
|
{x=1,y=0,z=0},
|
|
{x=-1,y=0,z=0},
|
|
{x=0,y=0,z=1},
|
|
{x=0,y=0,z=-1},
|
|
}
|
|
for _, d in ipairs(tries) do
|
|
local p = {x = pos.x+d.x, y = pos.y+d.y, z = pos.z+d.z}
|
|
local n = minetest.env:get_node(p)
|
|
if not minetest.registered_nodes[n.name].walkable then
|
|
return p, true
|
|
end
|
|
end
|
|
return pos, false
|
|
end
|
|
|
|
local teleportee = nil
|
|
local p = {}
|
|
p.x, p.y, p.z = string.match(param, "^([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
|
|
teleportee = minetest.env:get_player_by_name(name)
|
|
if teleportee and p.x and p.y and p.z then
|
|
minetest.chat_send_player(name, "Teleporting to ("..p.x..", "..p.y..", "..p.z..")")
|
|
teleportee:setpos(p)
|
|
return
|
|
end
|
|
|
|
local teleportee = nil
|
|
local p = nil
|
|
local target_name = nil
|
|
target_name = string.match(param, "^([^ ]+)$")
|
|
teleportee = minetest.env:get_player_by_name(name)
|
|
if target_name then
|
|
local target = minetest.env:get_player_by_name(target_name)
|
|
if target then
|
|
p = target:getpos()
|
|
end
|
|
end
|
|
if teleportee and p then
|
|
p = find_free_position_near(p)
|
|
minetest.chat_send_player(name, "Teleporting to "..target_name.." at ("..p.x..", "..p.y..", "..p.z..")")
|
|
teleportee:setpos(p)
|
|
return
|
|
end
|
|
|
|
if minetest.check_player_privs(name, {bring=true}) then
|
|
local teleportee = nil
|
|
local p = {}
|
|
local teleportee_name = nil
|
|
teleportee_name, p.x, p.y, p.z = string.match(param, "^([^ ]+) +([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
|
|
if teleportee_name then
|
|
teleportee = minetest.env:get_player_by_name(teleportee_name)
|
|
end
|
|
if teleportee and p.x and p.y and p.z then
|
|
minetest.chat_send_player(name, "Teleporting "..teleportee_name.." to ("..p.x..", "..p.y..", "..p.z..")")
|
|
teleportee:setpos(p)
|
|
return
|
|
end
|
|
|
|
local teleportee = nil
|
|
local p = nil
|
|
local teleportee_name = nil
|
|
local target_name = nil
|
|
teleportee_name, target_name = string.match(param, "^([^ ]+) +([^ ]+)$")
|
|
if teleportee_name then
|
|
teleportee = minetest.env:get_player_by_name(teleportee_name)
|
|
end
|
|
if target_name then
|
|
local target = minetest.env:get_player_by_name(target_name)
|
|
if target then
|
|
p = target:getpos()
|
|
end
|
|
end
|
|
if teleportee and p then
|
|
p = find_free_position_near(p)
|
|
minetest.chat_send_player(name, "Teleporting "..teleportee_name.." to "..target_name.." at ("..p.x..", "..p.y..", "..p.z..")")
|
|
teleportee:setpos(p)
|
|
return
|
|
end
|
|
end
|
|
|
|
minetest.chat_send_player(name, "Invalid parameters (\""..param.."\") or player not found (see /help teleport)")
|
|
return
|
|
end,
|
|
})
|
|
|
|
--
|
|
-- Builtin chat handler
|
|
--
|
|
|
|
minetest.register_on_chat_message(function(name, message)
|
|
local cmd, param = string.match(message, "/([^ ]+) *(.*)")
|
|
if not param then
|
|
param = ""
|
|
end
|
|
local cmd_def = minetest.chatcommands[cmd]
|
|
if cmd_def then
|
|
if not cmd_def.func then
|
|
-- This is a C++ command
|
|
return false
|
|
else
|
|
local has_privs, missing_privs = minetest.check_player_privs(name, cmd_def.privs)
|
|
if has_privs then
|
|
cmd_def.func(name, param)
|
|
else
|
|
minetest.chat_send_player(name, "You don't have permission to run this command (missing privileges: "..table.concat(missing_privs, ", ")..")")
|
|
end
|
|
return true -- handled chat message
|
|
end
|
|
end
|
|
return false
|
|
end)
|
|
|
|
--
|
|
-- Authentication handler
|
|
--
|
|
|
|
function minetest.string_to_privs(str)
|
|
assert(type(str) == "string")
|
|
privs = {}
|
|
for _, priv in pairs(string.split(str, ',')) do
|
|
privs[priv:trim()] = true
|
|
end
|
|
return privs
|
|
end
|
|
|
|
function minetest.privs_to_string(privs)
|
|
assert(type(privs) == "table")
|
|
list = {}
|
|
for priv, bool in pairs(privs) do
|
|
if bool then
|
|
table.insert(list, priv)
|
|
end
|
|
end
|
|
return table.concat(list, ',')
|
|
end
|
|
|
|
assert(minetest.string_to_privs("a,b").b == true)
|
|
assert(minetest.privs_to_string({a=true,b=true}) == "a,b")
|
|
|
|
minetest.auth_file_path = minetest.get_worldpath().."/auth.txt"
|
|
minetest.auth_table = {}
|
|
|
|
local function read_auth_file()
|
|
local newtable = {}
|
|
local file, errmsg = io.open(minetest.auth_file_path, 'rb')
|
|
if not file then
|
|
minetest.log("info", minetest.auth_file_path.." could not be opened for reading ("..errmsg.."); assuming new world")
|
|
return
|
|
end
|
|
for line in file:lines() do
|
|
if line ~= "" then
|
|
local name, password, privilegestring = string.match(line, "([^:]*):([^:]*):([^:]*)")
|
|
if not name or not password or not privilegestring then
|
|
error("Invalid line in auth.txt: "..dump(line))
|
|
end
|
|
local privileges = minetest.string_to_privs(privilegestring)
|
|
newtable[name] = {password=password, privileges=privileges}
|
|
end
|
|
end
|
|
io.close(file)
|
|
minetest.auth_table = newtable
|
|
end
|
|
|
|
local function save_auth_file()
|
|
local newtable = {}
|
|
-- Check table for validness before attempting to save
|
|
for name, stuff in pairs(minetest.auth_table) do
|
|
assert(type(name) == "string")
|
|
assert(name ~= "")
|
|
assert(type(stuff) == "table")
|
|
assert(type(stuff.password) == "string")
|
|
assert(type(stuff.privileges) == "table")
|
|
end
|
|
local file, errmsg = io.open(minetest.auth_file_path, 'w+b')
|
|
if not file then
|
|
error(minetest.auth_file_path.." could not be opened for writing: "..errmsg)
|
|
end
|
|
for name, stuff in pairs(minetest.auth_table) do
|
|
local privstring = minetest.privs_to_string(stuff.privileges)
|
|
file:write(name..":"..stuff.password..":"..privstring..'\n')
|
|
end
|
|
io.close(file)
|
|
end
|
|
|
|
read_auth_file()
|
|
|
|
minetest.builtin_auth_handler = {
|
|
get_auth = function(name)
|
|
assert(type(name) == "string")
|
|
if not minetest.auth_table[name] then
|
|
minetest.builtin_auth_handler.create_auth(name, minetest.get_password_hash(name, minetest.setting_get("default_password")))
|
|
end
|
|
if minetest.is_singleplayer() then
|
|
return {
|
|
password = "",
|
|
privileges = minetest.registered_privileges
|
|
}
|
|
else
|
|
if minetest.auth_table[name] and name == minetest.setting_get("name") then
|
|
return {
|
|
password = minetest.auth_table[name].password,
|
|
privileges = minetest.registered_privileges
|
|
}
|
|
else
|
|
return minetest.auth_table[name]
|
|
end
|
|
end
|
|
end,
|
|
create_auth = function(name, password)
|
|
assert(type(name) == "string")
|
|
assert(type(password) == "string")
|
|
minetest.log('info', "Built-in authentication handler adding player '"..name.."'")
|
|
minetest.auth_table[name] = {
|
|
password = password,
|
|
privileges = minetest.string_to_privs(minetest.setting_get("default_privs")),
|
|
}
|
|
save_auth_file()
|
|
end,
|
|
set_password = function(name, password)
|
|
assert(type(name) == "string")
|
|
assert(type(password) == "string")
|
|
if not minetest.auth_table[name] then
|
|
minetest.builtin_auth_handler.create_auth(name, password)
|
|
else
|
|
minetest.log('info', "Built-in authentication handler setting password of player '"..name.."'")
|
|
minetest.auth_table[name].password = password
|
|
save_auth_file()
|
|
end
|
|
end,
|
|
set_privileges = function(name, privileges)
|
|
assert(type(name) == "string")
|
|
assert(type(privileges) == "table")
|
|
if not minetest.auth_table[name] then
|
|
minetest.builtin_auth_handler.create_auth(name, minetest.get_password_hash(name, minetest.setting_get("default_password")))
|
|
end
|
|
minetest.auth_table[name].privileges = privileges
|
|
save_auth_file()
|
|
end
|
|
}
|
|
|
|
function minetest.register_authentication_handler(handler)
|
|
if minetest.registered_auth_handler then
|
|
error("Add-on authentication handler already registered by "..minetest.registered_auth_handler_modname)
|
|
end
|
|
minetest.registered_auth_handler = handler
|
|
minetest.registered_auth_handler_modname = minetest.get_current_modname()
|
|
end
|
|
|
|
function minetest.get_auth_handler()
|
|
if minetest.registered_auth_handler then
|
|
return minetest.registered_auth_handler
|
|
end
|
|
return minetest.builtin_auth_handler
|
|
end
|
|
|
|
function minetest.set_player_password(name, password)
|
|
minetest.get_auth_handler().set_password(name, password)
|
|
end
|
|
|
|
function minetest.set_player_privs(name, privs)
|
|
minetest.get_auth_handler().set_privileges(name, privs)
|
|
end
|
|
|
|
--
|
|
-- Set random seed
|
|
--
|
|
|
|
math.randomseed(os.time())
|
|
|
|
-- END
|