From b7fd3c86693bcb53f66c6b4b2d83248c534aa17b Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Tue, 28 Feb 2012 20:41:26 +0200
Subject: [PATCH] Add minetest.get_worldpath() for getting location for custom
 data

---
 data/mods/default/init.lua      | 3 +++
 data/mods/experimental/init.lua | 1 +
 src/scriptapi.cpp               | 9 +++++++++
 src/server.h                    | 2 ++
 4 files changed, 15 insertions(+)

diff --git a/data/mods/default/init.lua b/data/mods/default/init.lua
index d07337379..3f4a8175e 100644
--- a/data/mods/default/init.lua
+++ b/data/mods/default/init.lua
@@ -118,6 +118,9 @@
 --                  {type="node", pos={x=, y=, z=}}
 -- minetest.get_current_modname() -> string
 -- minetest.get_modpath(modname) -> eg. "/home/user/.minetest/usermods/modname"
+-- ^ Useful for loading additional .lua modules or static data from mod
+-- minetest.get_worldpath(modname) -> eg. "/home/user/.minetest/world"
+-- ^ Useful for storing custom data
 --
 -- minetest.debug(line)
 -- ^ Goes to dstream
diff --git a/data/mods/experimental/init.lua b/data/mods/experimental/init.lua
index 9a8f8868d..ddc89f92c 100644
--- a/data/mods/experimental/init.lua
+++ b/data/mods/experimental/init.lua
@@ -540,5 +540,6 @@ minetest.register_abm({
 
 print("experimental modname="..dump(minetest.get_current_modname()))
 print("experimental modpath="..dump(minetest.get_modpath("experimental")))
+print("experimental worldpath="..dump(minetest.get_worldpath()))
 
 -- END
diff --git a/src/scriptapi.cpp b/src/scriptapi.cpp
index a064cd688..8350c75f1 100644
--- a/src/scriptapi.cpp
+++ b/src/scriptapi.cpp
@@ -3560,6 +3560,14 @@ static int l_get_modpath(lua_State *L)
 	return 1;
 }
 
+// get_worldpath()
+static int l_get_worldpath(lua_State *L)
+{
+	std::string worldpath = get_server(L)->getWorldPath();
+	lua_pushstring(L, worldpath.c_str());
+	return 1;
+}
+
 static const struct luaL_Reg minetest_f [] = {
 	{"debug", l_debug},
 	{"log", l_log},
@@ -3576,6 +3584,7 @@ static const struct luaL_Reg minetest_f [] = {
 	{"get_hitting_properties", l_get_hitting_properties},
 	{"get_current_modname", l_get_current_modname},
 	{"get_modpath", l_get_modpath},
+	{"get_worldpath", l_get_worldpath},
 	{NULL, NULL}
 };
 
diff --git a/src/server.h b/src/server.h
index 40f0fe582..04bd61a87 100644
--- a/src/server.h
+++ b/src/server.h
@@ -525,6 +525,8 @@ public:
 	IWritableCraftDefManager* getWritableCraftDefManager();
 
 	const ModSpec* getModSpec(const std::string &modname);
+	
+	std::string getWorldPath(){ return m_mapsavedir; }
 
 private: