From 6a43b3af09944f1d218b20be034ccb9e6ea073ff Mon Sep 17 00:00:00 2001
From: SmallJoker <mk939@ymail.com>
Date: Sat, 4 Oct 2014 19:23:15 +0200
Subject: [PATCH] Add minetest.copy_table(table) To get rid off the "table
references"
Signed-off-by: Craig Robbins <kde.psych@gmail.com>
---
builtin/common/misc_helpers.lua | 12 ++++++++++++
doc/lua_api.txt | 2 ++
2 files changed, 14 insertions(+)
diff --git a/builtin/common/misc_helpers.lua b/builtin/common/misc_helpers.lua
index 48488ab62..0b608126e 100644
--- a/builtin/common/misc_helpers.lua
+++ b/builtin/common/misc_helpers.lua
@@ -490,6 +490,18 @@ function core.pos_to_string(pos)
return "(" .. pos.x .. "," .. pos.y .. "," .. pos.z .. ")"
end
+--------------------------------------------------------------------------------
+function table.copy(t, seen)
+ local n = {}
+ seen = seen or {}
+ seen[t] = n
+ for k, v in pairs(t) do
+ n[type(k) ~= "table" and k or seen[k] or table.copy(k, seen)] =
+ type(v) ~= "table" and v or seen[v] or table.copy(v, seen)
+ end
+ return n
+end
+
--------------------------------------------------------------------------------
-- mainmenu only functions
--------------------------------------------------------------------------------
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index e4a016b1a..f51d215ed 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -1310,6 +1310,8 @@ minetest.is_yes(arg)
^ returns whether arg can be interpreted as yes
minetest.get_us_time()
^ returns time with microsecond precision
+table.copy(table) -> table
+^ returns a deep copy of a table
minetest namespace reference
-----------------------------
--
GitLab