From b7a98e98500402c3bbdb6d56d0fe42b4f5b3cedb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Blot?= Date: Fri, 27 Jan 2017 08:59:30 +0100 Subject: Implement player attribute backend (#4155) * This backend permit mods to store extra players attributes to a common interface. * Add the obj:set_attribute(attr, value) Lua call * Add the obj:get_attribute(attr) Lua call Examples: * player:set_attribute("home:home", "10,25,-78") * player:get_attribute("default:mana") Attributes are saved as a json in the player file in extended_attributes key They are saved only if a modification on the attributes occurs and loaded when emergePlayer is called (they are attached to PlayerSAO). --- src/script/lua_api/l_object.cpp | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) (limited to 'src/script/lua_api/l_object.cpp') diff --git a/src/script/lua_api/l_object.cpp b/src/script/lua_api/l_object.cpp index be4451704..9352812ab 100644 --- a/src/script/lua_api/l_object.cpp +++ b/src/script/lua_api/l_object.cpp @@ -1181,6 +1181,45 @@ int ObjectRef::l_get_breath(lua_State *L) return 1; } +// set_attribute(self, attribute, value) +int ObjectRef::l_set_attribute(lua_State *L) +{ + ObjectRef *ref = checkobject(L, 1); + PlayerSAO* co = getplayersao(ref); + if (co == NULL) { + return 0; + } + + std::string attr = luaL_checkstring(L, 2); + std::string value = luaL_checkstring(L, 3); + + if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER) { + co->setExtendedAttribute(attr, value); + } + return 1; +} + +// get_attribute(self, attribute) +int ObjectRef::l_get_attribute(lua_State *L) +{ + ObjectRef *ref = checkobject(L, 1); + PlayerSAO* co = getplayersao(ref); + if (co == NULL) { + return 0; + } + + std::string attr = luaL_checkstring(L, 2); + + std::string value = ""; + if (co->getExtendedAttribute(attr, &value)) { + lua_pushstring(L, value.c_str()); + return 1; + } + + return 0; +} + + // set_inventory_formspec(self, formspec) int ObjectRef::l_set_inventory_formspec(lua_State *L) { @@ -1839,6 +1878,8 @@ const luaL_reg ObjectRef::methods[] = { luamethod(ObjectRef, set_look_pitch), luamethod(ObjectRef, get_breath), luamethod(ObjectRef, set_breath), + luamethod(ObjectRef, get_attribute), + luamethod(ObjectRef, set_attribute), luamethod(ObjectRef, set_inventory_formspec), luamethod(ObjectRef, get_inventory_formspec), luamethod(ObjectRef, get_player_control), -- cgit v1.2.3