WIP node metadata, node timers
[oweals/minetest.git] / src / scriptapi.cpp
index 1ef6d0e72de082c75d7552cc4f01d2804764e62d..72a47308341caf8b27dc80ba518ce5f8aa5fca16 100644 (file)
@@ -141,14 +141,14 @@ static Server* get_server(lua_State *L)
        return server;
 }
 
-static ServerEnvironment* get_env(lua_State *L)
+/*static ServerEnvironment* get_env(lua_State *L)
 {
        // Get environment from registry
        lua_getfield(L, LUA_REGISTRYINDEX, "minetest_env");
        ServerEnvironment *env = (ServerEnvironment*)lua_touserdata(L, -1);
        lua_pop(L, 1);
        return env;
-}
+}*/
 
 static void objectref_get(lua_State *L, u16 id)
 {
@@ -647,6 +647,27 @@ static void read_groups(lua_State *L, int index,
        }
 }
 
+/*
+       Privileges
+*/
+static void read_privileges(lua_State *L, int index,
+               std::set<std::string> &result)
+{
+       result.clear();
+       lua_pushnil(L);
+       if(index < 0)
+               index -= 1;
+       while(lua_next(L, index) != 0){
+               // key at index -2 and value at index -1
+               std::string key = luaL_checkstring(L, -2);
+               bool value = lua_toboolean(L, -1);
+               if(value)
+                       result.insert(key);
+               // removes value, keeps key for next iteration
+               lua_pop(L, 1);
+       }
+}
+
 /*
        ToolCapabilities
 */
@@ -835,6 +856,68 @@ static void read_soundspec(lua_State *L, int index, SimpleSoundSpec &spec)
        }
 }
 
+/*
+       ObjectProperties
+*/
+
+static void read_object_properties(lua_State *L, int index,
+               ObjectProperties *prop)
+{
+       if(index < 0)
+               index = lua_gettop(L) + 1 + index;
+       if(!lua_istable(L, index))
+               return;
+
+       prop->hp_max = getintfield_default(L, -1, "hp_max", 10);
+
+       getboolfield(L, -1, "physical", prop->physical);
+
+       getfloatfield(L, -1, "weight", prop->weight);
+
+       lua_getfield(L, -1, "collisionbox");
+       if(lua_istable(L, -1))
+               prop->collisionbox = read_aabbox3df32(L, -1, 1.0);
+       lua_pop(L, 1);
+
+       getstringfield(L, -1, "visual", prop->visual);
+       
+       lua_getfield(L, -1, "visual_size");
+       if(lua_istable(L, -1))
+               prop->visual_size = read_v2f(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, -1, "textures");
+       if(lua_istable(L, -1)){
+               prop->textures.clear();
+               int table = lua_gettop(L);
+               lua_pushnil(L);
+               while(lua_next(L, table) != 0){
+                       // key at index -2 and value at index -1
+                       if(lua_isstring(L, -1))
+                               prop->textures.push_back(lua_tostring(L, -1));
+                       else
+                               prop->textures.push_back("");
+                       // removes value, keeps key for next iteration
+                       lua_pop(L, 1);
+               }
+       }
+       lua_pop(L, 1);
+       
+       lua_getfield(L, -1, "spritediv");
+       if(lua_istable(L, -1))
+               prop->spritediv = read_v2s16(L, -1);
+       lua_pop(L, 1);
+
+       lua_getfield(L, -1, "initial_sprite_basepos");
+       if(lua_istable(L, -1))
+               prop->initial_sprite_basepos = read_v2s16(L, -1);
+       lua_pop(L, 1);
+       
+       getboolfield(L, -1, "is_visible", prop->is_visible);
+       getboolfield(L, -1, "makes_footstep_sound", prop->makes_footstep_sound);
+       getfloatfield(L, -1, "automatic_rotate", prop->automatic_rotate);
+}
+
 /*
        ItemDefinition
 */
@@ -997,6 +1080,8 @@ static ContentFeatures read_content_features(lua_State *L, int index)
                        "deprecated: use 'drop' field");
        warn_if_field_exists(L, index, "extra_dug_item_rarity",
                        "deprecated: use 'drop' field");
+       warn_if_field_exists(L, index, "metadata_name",
+                       "deprecated: use on_add and metadata callbacks");
        
        // True for all ground-like things like stone and mud, false for eg. trees
        getboolfield(L, index, "is_ground_content", f.is_ground_content);
@@ -1013,8 +1098,6 @@ static ContentFeatures read_content_features(lua_State *L, int index)
        getboolfield(L, index, "climbable", f.climbable);
        // Player can build on these
        getboolfield(L, index, "buildable_to", f.buildable_to);
-       // Metadata name of node (eg. "furnace")
-       getstringfield(L, index, "metadata_name", f.metadata_name);
        // Whether the node is non-liquid, source liquid or flowing liquid
        f.liquid_type = (LiquidType)getenumfield(L, index, "liquidtype",
                        es_LiquidType, LIQUID_NONE);
@@ -1864,22 +1947,17 @@ private:
                return *(NodeMetaRef**)ud;  // unbox pointer
        }
        
-       static NodeMetadata* getmeta(NodeMetaRef *ref)
+       static NodeMetadata* getmeta(NodeMetaRef *ref, bool auto_create)
        {
                NodeMetadata *meta = ref->m_env->getMap().getNodeMetadata(ref->m_p);
+               if(meta == NULL && auto_create)
+               {
+                       meta = new NodeMetadata(ref->m_env->getGameDef());
+                       ref->m_env->getMap().setNodeMetadata(ref->m_p, meta);
+               }
                return meta;
        }
 
-       /*static IGenericNodeMetadata* getgenericmeta(NodeMetaRef *ref)
-       {
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL)
-                       return NULL;
-               if(meta->typeId() != NODEMETA_GENERIC)
-                       return NULL;
-               return (IGenericNodeMetadata*)meta;
-       }*/
-
        static void reportMetadataChange(NodeMetaRef *ref)
        {
                // Inform other things that the metadata has changed
@@ -1904,106 +1982,99 @@ private:
                return 0;
        }
 
-       // get_type(self)
-       static int l_get_type(lua_State *L)
+       // get_string(self, name)
+       static int l_get_string(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
+               std::string name = luaL_checkstring(L, 2);
+
+               NodeMetadata *meta = getmeta(ref, false);
                if(meta == NULL){
-                       lua_pushnil(L);
+                       lua_pushlstring(L, "", 0);
                        return 1;
                }
-               // Do it
-               lua_pushstring(L, meta->typeName());
+               std::string str = meta->getString(name);
+               lua_pushlstring(L, str.c_str(), str.size());
                return 1;
        }
 
-       // allows_text_input(self)
-       static int l_allows_text_input(lua_State *L)
+       // set_string(self, name, var)
+       static int l_set_string(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               lua_pushboolean(L, meta->allowsTextInput());
-               return 1;
-       }
+               std::string name = luaL_checkstring(L, 2);
+               size_t len = 0;
+               const char *s = lua_tolstring(L, 3, &len);
+               std::string str(s, len);
 
-       // set_text(self, text)
-       static int l_set_text(lua_State *L)
-       {
-               NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string text = luaL_checkstring(L, 2);
-               meta->setText(text);
+               NodeMetadata *meta = getmeta(ref, !str.empty());
+               if(meta == NULL || str == meta->getString(name))
+                       return 0;
+               meta->setString(name, str);
                reportMetadataChange(ref);
                return 0;
        }
 
-       // get_text(self)
-       static int l_get_text(lua_State *L)
+       // get_int(self, name)
+       static int l_get_int(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string text = meta->getText();
-               lua_pushstring(L, text.c_str());
-               return 1;
-       }
+               std::string name = lua_tostring(L, 2);
 
-       // get_owner(self)
-       static int l_get_owner(lua_State *L)
-       {
-               NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string owner = meta->getOwner();
-               lua_pushstring(L, owner.c_str());
+               NodeMetadata *meta = getmeta(ref, false);
+               if(meta == NULL){
+                       lua_pushnumber(L, 0);
+                       return 1;
+               }
+               std::string str = meta->getString(name);
+               lua_pushnumber(L, stoi(str));
                return 1;
        }
 
-       // set_owner(self, string)
-       static int l_set_owner(lua_State *L)
+       // set_int(self, name, var)
+       static int l_set_int(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string owner = luaL_checkstring(L, 2);
-               meta->setOwner(owner);
+               std::string name = lua_tostring(L, 2);
+               int a = lua_tointeger(L, 3);
+               std::string str = itos(a);
+
+               NodeMetadata *meta = getmeta(ref, true);
+               if(meta == NULL || str == meta->getString(name))
+                       return 0;
+               meta->setString(name, str);
                reportMetadataChange(ref);
-               return 1;
+               return 0;
        }
 
-       // get_allow_removal(self)
-       static int l_get_allow_removal(lua_State *L)
+       // get_float(self, name)
+       static int l_get_float(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
+               std::string name = lua_tostring(L, 2);
+
+               NodeMetadata *meta = getmeta(ref, false);
                if(meta == NULL){
-                       lua_pushboolean(L, true);
+                       lua_pushnumber(L, 0);
                        return 1;
                }
-               // Do it
-               lua_pushboolean(L, !meta->nodeRemovalDisabled());
+               std::string str = meta->getString(name);
+               lua_pushnumber(L, stof(str));
                return 1;
        }
 
-       /* IGenericNodeMetadata interface */
-       
-       // set_infotext(self, text)
-       static int l_set_infotext(lua_State *L)
+       // set_float(self, name, var)
+       static int l_set_float(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string text = luaL_checkstring(L, 2);
-               meta->setInfoText(text);
+               std::string name = lua_tostring(L, 2);
+               float a = lua_tonumber(L, 3);
+               std::string str = ftos(a);
+
+               NodeMetadata *meta = getmeta(ref, true);
+               if(meta == NULL || str == meta->getString(name))
+                       return 0;
+               meta->setString(name, str);
                reportMetadataChange(ref);
                return 0;
        }
@@ -2012,140 +2083,132 @@ private:
        static int l_get_inventory(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
+               getmeta(ref, true);  // try to ensure the metadata exists
                InvRef::createNodeMeta(L, ref->m_p);
                return 1;
        }
 
-       // set_inventory_draw_spec(self, text)
-       static int l_set_inventory_draw_spec(lua_State *L)
+       // get_inventory_draw_spec(self)
+       static int l_get_inventory_draw_spec(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string text = luaL_checkstring(L, 2);
-               meta->setInventoryDrawSpec(text);
-               reportMetadataChange(ref);
-               return 0;
+
+               NodeMetadata *meta = getmeta(ref, false);
+               if(meta == NULL){
+                       lua_pushlstring(L, "", 0);
+                       return 1;
+               }
+               std::string str = meta->getInventoryDrawSpec();
+               lua_pushlstring(L, str.c_str(), str.size());
+               return 1;
        }
 
-       // set_allow_text_input(self, text)
-       static int l_set_allow_text_input(lua_State *L)
+       // set_inventory_draw_spec(self, text)
+       static int l_set_inventory_draw_spec(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               bool b = lua_toboolean(L, 2);
-               meta->setAllowTextInput(b);
+               size_t len = 0;
+               const char *s = lua_tolstring(L, 2, &len);
+               std::string str(s, len);
+
+               NodeMetadata *meta = getmeta(ref, !str.empty());
+               if(meta == NULL || str == meta->getInventoryDrawSpec())
+                       return 0;
+               meta->setInventoryDrawSpec(str);
                reportMetadataChange(ref);
                return 0;
        }
 
-       // set_allow_removal(self, text)
-       static int l_set_allow_removal(lua_State *L)
+       // get_form_spec(self)
+       static int l_get_form_spec(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               bool b = lua_toboolean(L, 2);
-               meta->setRemovalDisabled(!b);
-               reportMetadataChange(ref);
-               return 0;
+
+               NodeMetadata *meta = getmeta(ref, false);
+               if(meta == NULL){
+                       lua_pushlstring(L, "", 0);
+                       return 1;
+               }
+               std::string str = meta->getFormSpec();
+               lua_pushlstring(L, str.c_str(), str.size());
+               return 1;
        }
 
-       // set_enforce_owner(self, text)
-       static int l_set_enforce_owner(lua_State *L)
+       // set_form_spec(self, text)
+       static int l_set_form_spec(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               bool b = lua_toboolean(L, 2);
-               meta->setEnforceOwner(b);
+               size_t len = 0;
+               const char *s = lua_tolstring(L, 2, &len);
+               std::string str(s, len);
+
+               NodeMetadata *meta = getmeta(ref, !str.empty());
+               if(meta == NULL || str == meta->getFormSpec())
+                       return 0;
+               meta->setFormSpec(str);
                reportMetadataChange(ref);
                return 0;
        }
 
-       // is_inventory_modified(self)
-       static int l_is_inventory_modified(lua_State *L)
+       // get_infotext(self)
+       static int l_get_infotext(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               lua_pushboolean(L, meta->isInventoryModified());
+
+               NodeMetadata *meta = getmeta(ref, false);
+               if(meta == NULL){
+                       lua_pushlstring(L, "", 0);
+                       return 1;
+               }
+               std::string str = meta->getInfoText();
+               lua_pushlstring(L, str.c_str(), str.size());
                return 1;
        }
 
-       // reset_inventory_modified(self)
-       static int l_reset_inventory_modified(lua_State *L)
+       // set_infotext(self, text)
+       static int l_set_infotext(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               meta->resetInventoryModified();
+               size_t len = 0;
+               const char *s = lua_tolstring(L, 2, &len);
+               std::string str(s, len);
+
+               NodeMetadata *meta = getmeta(ref, !str.empty());
+               if(meta == NULL || str == meta->getInfoText())
+                       return 0;
+               meta->setInfoText(str);
                reportMetadataChange(ref);
                return 0;
        }
 
-       // is_text_modified(self)
-       static int l_is_text_modified(lua_State *L)
+       // get_allow_removal(self)
+       static int l_get_allow_removal(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               lua_pushboolean(L, meta->isTextModified());
+
+               NodeMetadata *meta = getmeta(ref, false);
+               if(meta == NULL){
+                       lua_pushboolean(L, true);
+                       return 1;
+               }
+               lua_pushboolean(L, meta->getAllowRemoval());
                return 1;
        }
 
-       // reset_text_modified(self)
-       static int l_reset_text_modified(lua_State *L)
+       // set_allow_removal(self, flag)
+       static int l_set_allow_removal(lua_State *L)
        {
                NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               meta->resetTextModified();
-               reportMetadataChange(ref);
-               return 0;
-       }
+               bool flag = lua_toboolean(L, 2);
 
-       // set_string(self, name, var)
-       static int l_set_string(lua_State *L)
-       {
-               NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string name = luaL_checkstring(L, 2);
-               size_t len = 0;
-               const char *s = lua_tolstring(L, 3, &len);
-               std::string str(s, len);
-               meta->setString(name, str);
+               NodeMetadata *meta = getmeta(ref, flag != true);
+               if(meta == NULL || flag == meta->getAllowRemoval())
+                       return 0;
+               meta->setAllowRemoval(flag);
                reportMetadataChange(ref);
                return 0;
        }
 
-       // get_string(self, name)
-       static int l_get_string(lua_State *L)
-       {
-               NodeMetaRef *ref = checkobject(L, 1);
-               NodeMetadata *meta = getmeta(ref);
-               if(meta == NULL) return 0;
-               // Do it
-               std::string name = luaL_checkstring(L, 2);
-               std::string str = meta->getString(name);
-               lua_pushlstring(L, str.c_str(), str.size());
-               return 1;
-       }
-
 public:
        NodeMetaRef(v3s16 p, ServerEnvironment *env):
                m_p(p),
@@ -2198,25 +2261,21 @@ public:
 };
 const char NodeMetaRef::className[] = "NodeMetaRef";
 const luaL_reg NodeMetaRef::methods[] = {
-       method(NodeMetaRef, get_type),
-       method(NodeMetaRef, allows_text_input),
-       method(NodeMetaRef, set_text),
-       method(NodeMetaRef, get_text),
-       method(NodeMetaRef, get_owner),
-       method(NodeMetaRef, set_owner),
-       method(NodeMetaRef, get_allow_removal),
-       method(NodeMetaRef, set_infotext),
+       method(NodeMetaRef, get_string),
+       method(NodeMetaRef, set_string),
+       method(NodeMetaRef, get_int),
+       method(NodeMetaRef, set_int),
+       method(NodeMetaRef, get_float),
+       method(NodeMetaRef, set_float),
        method(NodeMetaRef, get_inventory),
+       method(NodeMetaRef, get_inventory_draw_spec),
        method(NodeMetaRef, set_inventory_draw_spec),
-       method(NodeMetaRef, set_allow_text_input),
+       method(NodeMetaRef, get_form_spec),
+       method(NodeMetaRef, set_form_spec),
+       method(NodeMetaRef, get_infotext),
+       method(NodeMetaRef, set_infotext),
+       method(NodeMetaRef, get_allow_removal),
        method(NodeMetaRef, set_allow_removal),
-       method(NodeMetaRef, set_enforce_owner),
-       method(NodeMetaRef, is_inventory_modified),
-       method(NodeMetaRef, reset_inventory_modified),
-       method(NodeMetaRef, is_text_modified),
-       method(NodeMetaRef, reset_text_modified),
-       method(NodeMetaRef, set_string),
-       method(NodeMetaRef, get_string),
        {0,0}
 };
 
@@ -2471,6 +2530,33 @@ private:
                return 1;
        }
 
+       // set_armor_groups(self, groups)
+       static int l_set_armor_groups(lua_State *L)
+       {
+               ObjectRef *ref = checkobject(L, 1);
+               ServerActiveObject *co = getobject(ref);
+               if(co == NULL) return 0;
+               // Do it
+               ItemGroupList groups;
+               read_groups(L, 2, groups);
+               co->setArmorGroups(groups);
+               return 0;
+       }
+
+       // set_properties(self, properties)
+       static int l_set_properties(lua_State *L)
+       {
+               ObjectRef *ref = checkobject(L, 1);
+               ServerActiveObject *co = getobject(ref);
+               if(co == NULL) return 0;
+               ObjectProperties *prop = co->accessObjectProperties();
+               if(!prop)
+                       return 0;
+               read_object_properties(L, 2, prop);
+               co->notifyObjectPropertiesModified();
+               return 0;
+       }
+
        /* LuaEntitySAO-only */
 
        // setvelocity(self, {x=num, y=num, z=num})
@@ -2479,7 +2565,6 @@ private:
                ObjectRef *ref = checkobject(L, 1);
                LuaEntitySAO *co = getluaobject(ref);
                if(co == NULL) return 0;
-               // pos
                v3f pos = checkFloatPos(L, 2);
                // Do it
                co->setVelocity(pos);
@@ -2529,7 +2614,6 @@ private:
                ObjectRef *ref = checkobject(L, 1);
                LuaEntitySAO *co = getluaobject(ref);
                if(co == NULL) return 0;
-               // pos
                float yaw = luaL_checknumber(L, 2) * core::RADTODEG;
                // Do it
                co->setYaw(yaw);
@@ -2584,19 +2668,6 @@ private:
                return 0;
        }
 
-       // set_armor_groups(self, groups)
-       static int l_set_armor_groups(lua_State *L)
-       {
-               ObjectRef *ref = checkobject(L, 1);
-               LuaEntitySAO *co = getluaobject(ref);
-               if(co == NULL) return 0;
-               // Do it
-               ItemGroupList groups;
-               read_groups(L, 2, groups);
-               co->setArmorGroups(groups);
-               return 0;
-       }
-
        // DEPRECATED
        // get_entity_name(self)
        static int l_get_entity_name(lua_State *L)
@@ -2750,6 +2821,8 @@ const luaL_reg ObjectRef::methods[] = {
        method(ObjectRef, get_wield_index),
        method(ObjectRef, get_wielded_item),
        method(ObjectRef, set_wielded_item),
+       method(ObjectRef, set_armor_groups),
+       method(ObjectRef, set_properties),
        // LuaEntitySAO-only
        method(ObjectRef, setvelocity),
        method(ObjectRef, getvelocity),
@@ -2759,7 +2832,6 @@ const luaL_reg ObjectRef::methods[] = {
        method(ObjectRef, getyaw),
        method(ObjectRef, settexturemod),
        method(ObjectRef, setsprite),
-       method(ObjectRef, set_armor_groups),
        method(ObjectRef, get_entity_name),
        method(ObjectRef, get_luaentity),
        // Player-only
@@ -2781,6 +2853,120 @@ static void objectref_get_or_create(lua_State *L,
        }
 }
 
+
+/*
+  PerlinNoise
+ */
+
+class LuaPerlinNoise
+{
+private:
+       int seed;
+       int octaves;
+       double persistence;
+       double scale;
+       static const char className[];
+       static const luaL_reg methods[];
+
+       // Exported functions
+
+       // garbage collector
+       static int gc_object(lua_State *L)
+       {
+               LuaPerlinNoise *o = *(LuaPerlinNoise **)(lua_touserdata(L, 1));
+               delete o;
+               return 0;
+       }
+
+       static int l_get2d(lua_State *L)
+       {
+               LuaPerlinNoise *o = checkobject(L, 1);
+               v2f pos2d = read_v2f(L,2);
+               lua_Number val = noise2d_perlin(pos2d.X/o->scale, pos2d.Y/o->scale, o->seed, o->octaves, o->persistence);
+               lua_pushnumber(L, val);
+               return 1;
+       }
+       static int l_get3d(lua_State *L)
+       {
+               LuaPerlinNoise *o = checkobject(L, 1);
+               v3f pos3d = read_v3f(L,2);
+               lua_Number val = noise3d_perlin(pos3d.X/o->scale, pos3d.Y/o->scale, pos3d.Z/o->scale, o->seed, o->octaves, o->persistence);
+               lua_pushnumber(L, val);
+               return 1;
+       }
+
+public:
+       LuaPerlinNoise(int a_seed, int a_octaves, double a_persistence,
+                       double a_scale):
+               seed(a_seed),
+               octaves(a_octaves),
+               persistence(a_persistence),
+               scale(a_scale)
+       {
+       }
+
+       ~LuaPerlinNoise()
+       {
+       }
+
+       // LuaPerlinNoise(seed, octaves, persistence, scale)
+       // Creates an LuaPerlinNoise and leaves it on top of stack
+       static int create_object(lua_State *L)
+       {
+               int seed = luaL_checkint(L, 1);
+               int octaves = luaL_checkint(L, 2);
+               double persistence = luaL_checknumber(L, 3);
+               double scale = luaL_checknumber(L, 4);
+               LuaPerlinNoise *o = new LuaPerlinNoise(seed, octaves, persistence, scale);
+               *(void **)(lua_newuserdata(L, sizeof(void *))) = o;
+               luaL_getmetatable(L, className);
+               lua_setmetatable(L, -2);
+               return 1;
+       }
+
+       static LuaPerlinNoise* checkobject(lua_State *L, int narg)
+       {
+               luaL_checktype(L, narg, LUA_TUSERDATA);
+               void *ud = luaL_checkudata(L, narg, className);
+               if(!ud) luaL_typerror(L, narg, className);
+               return *(LuaPerlinNoise**)ud;  // unbox pointer
+       }
+
+       static void Register(lua_State *L)
+       {
+               lua_newtable(L);
+               int methodtable = lua_gettop(L);
+               luaL_newmetatable(L, className);
+               int metatable = lua_gettop(L);
+
+               lua_pushliteral(L, "__metatable");
+               lua_pushvalue(L, methodtable);
+               lua_settable(L, metatable);  // hide metatable from Lua getmetatable()
+
+               lua_pushliteral(L, "__index");
+               lua_pushvalue(L, methodtable);
+               lua_settable(L, metatable);
+
+               lua_pushliteral(L, "__gc");
+               lua_pushcfunction(L, gc_object);
+               lua_settable(L, metatable);
+
+               lua_pop(L, 1);  // drop metatable
+
+               luaL_openlib(L, 0, methods, 0);  // fill methodtable
+               lua_pop(L, 1);  // drop methodtable
+
+               // Can be created from Lua (PerlinNoise(seed, octaves, persistence)
+               lua_register(L, className, create_object);
+       }
+};
+const char LuaPerlinNoise::className[] = "PerlinNoise";
+const luaL_reg LuaPerlinNoise::methods[] = {
+       method(LuaPerlinNoise, get2d),
+       method(LuaPerlinNoise, get3d),
+       {0,0}
+};
+
 /*
        EnvRef
 */
@@ -2793,6 +2979,12 @@ private:
        static const char className[];
        static const luaL_reg methods[];
 
+       static int gc_object(lua_State *L) {
+               EnvRef *o = *(EnvRef **)(lua_touserdata(L, 1));
+               delete o;
+               return 0;
+       }
+
        static EnvRef *checkobject(lua_State *L, int narg)
        {
                luaL_checktype(L, narg, LUA_TUSERDATA);
@@ -2947,7 +3139,21 @@ private:
                ItemStack item = read_item(L, 3);
                if(item.empty() || !item.isKnown(get_server(L)->idef()))
                        return 0;
-               // Do it
+               // Use minetest.spawn_item to spawn a __builtin:item
+               lua_getglobal(L, "minetest");
+               lua_getfield(L, -1, "spawn_item");
+               if(lua_isnil(L, -1))
+                       return 0;
+               lua_pushvalue(L, 2);
+               lua_pushstring(L, item.getItemString().c_str());
+               if(lua_pcall(L, 2, 1, 0))
+                       script_error(L, "error: %s", lua_tostring(L, -1));
+               return 1;
+               /*lua_pushvalue(L, 1);
+               lua_pushstring(L, "__builtin:item");
+               lua_pushstring(L, item.getItemString().c_str());
+               return l_add_entity(L);*/
+               /*// Do it
                ServerActiveObject *obj = createItemSAO(env, pos, item.getItemString());
                int objectid = env->addActiveObject(obj);
                // If failed to add, return nothing (reads as nil)
@@ -2955,7 +3161,7 @@ private:
                        return 0;
                // Return ObjectRef
                objectref_get_or_create(L, obj);
-               return 1;
+               return 1;*/
        }
 
        // EnvRef:add_rat(pos)
@@ -3074,12 +3280,117 @@ private:
                return 1;
        }
 
-       static int gc_object(lua_State *L) {
-               EnvRef *o = *(EnvRef **)(lua_touserdata(L, 1));
-               delete o;
+
+       // EnvRef:find_node_near(pos, radius, nodenames) -> pos or nil
+       // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
+       static int l_find_node_near(lua_State *L)
+       {
+               EnvRef *o = checkobject(L, 1);
+               ServerEnvironment *env = o->m_env;
+               if(env == NULL) return 0;
+               INodeDefManager *ndef = get_server(L)->ndef();
+               v3s16 pos = read_v3s16(L, 2);
+               int radius = luaL_checkinteger(L, 3);
+               std::set<content_t> filter;
+               if(lua_istable(L, 4)){
+                       int table = 4;
+                       lua_pushnil(L);
+                       while(lua_next(L, table) != 0){
+                               // key at index -2 and value at index -1
+                               luaL_checktype(L, -1, LUA_TSTRING);
+                               ndef->getIds(lua_tostring(L, -1), filter);
+                               // removes value, keeps key for next iteration
+                               lua_pop(L, 1);
+                       }
+               } else if(lua_isstring(L, 4)){
+                       ndef->getIds(lua_tostring(L, 4), filter);
+               }
+
+               for(int d=1; d<=radius; d++){
+                       core::list<v3s16> list;
+                       getFacePositions(list, d);
+                       for(core::list<v3s16>::Iterator i = list.begin();
+                                       i != list.end(); i++){
+                               v3s16 p = pos + (*i);
+                               content_t c = env->getMap().getNodeNoEx(p).getContent();
+                               if(filter.count(c) != 0){
+                                       push_v3s16(L, p);
+                                       return 1;
+                               }
+                       }
+               }
                return 0;
        }
 
+       // EnvRef:find_nodes_in_area(minp, maxp, nodenames) -> list of positions
+       // nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
+       static int l_find_nodes_in_area(lua_State *L)
+       {
+               EnvRef *o = checkobject(L, 1);
+               ServerEnvironment *env = o->m_env;
+               if(env == NULL) return 0;
+               INodeDefManager *ndef = get_server(L)->ndef();
+               v3s16 minp = read_v3s16(L, 2);
+               v3s16 maxp = read_v3s16(L, 3);
+               std::set<content_t> filter;
+               if(lua_istable(L, 4)){
+                       int table = 4;
+                       lua_pushnil(L);
+                       while(lua_next(L, table) != 0){
+                               // key at index -2 and value at index -1
+                               luaL_checktype(L, -1, LUA_TSTRING);
+                               ndef->getIds(lua_tostring(L, -1), filter);
+                               // removes value, keeps key for next iteration
+                               lua_pop(L, 1);
+                       }
+               } else if(lua_isstring(L, 4)){
+                       ndef->getIds(lua_tostring(L, 4), filter);
+               }
+
+               // Get the table insert function
+               lua_getglobal(L, "table");
+               lua_getfield(L, -1, "insert");
+               int table_insert = lua_gettop(L);
+               
+               lua_newtable(L);
+               int table = lua_gettop(L);
+               for(s16 x=minp.X; x<=maxp.X; x++)
+               for(s16 y=minp.Y; y<=maxp.Y; y++)
+               for(s16 z=minp.Z; z<=maxp.Z; z++)
+               {
+                       v3s16 p(x,y,z);
+                       content_t c = env->getMap().getNodeNoEx(p).getContent();
+                       if(filter.count(c) != 0){
+                               lua_pushvalue(L, table_insert);
+                               lua_pushvalue(L, table);
+                               push_v3s16(L, p);
+                               if(lua_pcall(L, 2, 0, 0))
+                                       script_error(L, "error: %s", lua_tostring(L, -1));
+                       }
+               }
+               return 1;
+       }
+
+       //      EnvRef:get_perlin(seeddiff, octaves, persistence, scale)
+       //  returns world-specific PerlinNoise
+       static int l_get_perlin(lua_State *L)
+       {
+               EnvRef *o = checkobject(L, 1);
+               ServerEnvironment *env = o->m_env;
+               if(env == NULL) return 0;
+
+               int seeddiff = luaL_checkint(L, 2);
+               int octaves = luaL_checkint(L, 3);
+               double persistence = luaL_checknumber(L, 4);
+               double scale = luaL_checknumber(L, 5);
+
+               LuaPerlinNoise *n = new LuaPerlinNoise(seeddiff + int(env->getServerMap().getSeed()), octaves, persistence, scale);
+               *(void **)(lua_newuserdata(L, sizeof(void *))) = n;
+               luaL_getmetatable(L, "PerlinNoise");
+               lua_setmetatable(L, -2);
+               return 1;
+       }
+
 public:
        EnvRef(ServerEnvironment *env):
                m_env(env)
@@ -3154,6 +3465,9 @@ const luaL_reg EnvRef::methods[] = {
        method(EnvRef, get_objects_inside_radius),
        method(EnvRef, set_timeofday),
        method(EnvRef, get_timeofday),
+       method(EnvRef, find_node_near),
+       method(EnvRef, find_nodes_in_area),
+       method(EnvRef, get_perlin),
        {0,0}
 };
 
@@ -3161,6 +3475,7 @@ const luaL_reg EnvRef::methods[] = {
        LuaPseudoRandom
 */
 
+
 class LuaPseudoRandom
 {
 private:
@@ -3272,6 +3587,8 @@ const luaL_reg LuaPseudoRandom::methods[] = {
        {0,0}
 };
 
+
+
 /*
        LuaABM
 */
@@ -3705,6 +4022,15 @@ static int l_register_craft(lua_State *L)
        return 0; /* number of results */
 }
 
+// setting_set(name, value)
+static int l_setting_set(lua_State *L)
+{
+       const char *name = luaL_checkstring(L, 1);
+       const char *value = luaL_checkstring(L, 2);
+       g_settings->set(name, value);
+       return 0;
+}
+
 // setting_get(name)
 static int l_setting_get(lua_State *L)
 {
@@ -3763,8 +4089,7 @@ static int l_get_player_privs(lua_State *L)
        // Do it
        lua_newtable(L);
        int table = lua_gettop(L);
-       u64 privs_i = server->getPlayerEffectivePrivs(name);
-       std::set<std::string> privs_s = privsToSet(privs_i);
+       std::set<std::string> privs_s = server->getPlayerEffectivePrivs(name);
        for(std::set<std::string>::const_iterator
                        i = privs_s.begin(); i != privs_s.end(); i++){
                lua_pushboolean(L, true);
@@ -3834,8 +4159,13 @@ static int l_get_current_modname(lua_State *L)
 // get_modpath(modname)
 static int l_get_modpath(lua_State *L)
 {
-       const char *modname = luaL_checkstring(L, 1);
+       std::string modname = luaL_checkstring(L, 1);
        // Do it
+       if(modname == "__builtin"){
+               std::string path = get_server(L)->getBuiltinLuaPath();
+               lua_pushstring(L, path.c_str());
+               return 1;
+       }
        const ModSpec *mod = get_server(L)->getModSpec(modname);
        if(!mod){
                lua_pushnil(L);
@@ -3880,12 +4210,34 @@ static int l_is_singleplayer(lua_State *L)
        return 1;
 }
 
+// get_password_hash(name, raw_password)
+static int l_get_password_hash(lua_State *L)
+{
+       std::string name = luaL_checkstring(L, 1);
+       std::string raw_password = luaL_checkstring(L, 2);
+       std::string hash = translatePassword(name,
+                       narrow_to_wide(raw_password));
+       lua_pushstring(L, hash.c_str());
+       return 1;
+}
+
+// notify_authentication_modified(name)
+static int l_notify_authentication_modified(lua_State *L)
+{
+       std::string name = "";
+       if(lua_isstring(L, 1))
+               name = lua_tostring(L, 1);
+       get_server(L)->reportPrivsModified(name);
+       return 0;
+}
+
 static const struct luaL_Reg minetest_f [] = {
        {"debug", l_debug},
        {"log", l_log},
        {"register_item_raw", l_register_item_raw},
        {"register_alias_raw", l_register_alias_raw},
        {"register_craft", l_register_craft},
+       {"setting_set", l_setting_set},
        {"setting_get", l_setting_get},
        {"setting_getbool", l_setting_getbool},
        {"chat_send_all", l_chat_send_all},
@@ -3900,6 +4252,8 @@ static const struct luaL_Reg minetest_f [] = {
        {"sound_play", l_sound_play},
        {"sound_stop", l_sound_stop},
        {"is_singleplayer", l_is_singleplayer},
+       {"get_password_hash", l_get_password_hash},
+       {"notify_authentication_modified", l_notify_authentication_modified},
        {NULL, NULL}
 };
 
@@ -3940,6 +4294,7 @@ void scriptapi_export(lua_State *L, Server *server)
        ObjectRef::Register(L);
        EnvRef::Register(L);
        LuaPseudoRandom::Register(L);
+       LuaPerlinNoise::Register(L);
 }
 
 bool scriptapi_loadmod(lua_State *L, const std::string &scriptpath,
@@ -4347,6 +4702,10 @@ void scriptapi_on_leaveplayer(lua_State *L, ServerActiveObject *player)
 
 void scriptapi_get_creative_inventory(lua_State *L, ServerActiveObject *player)
 {
+       realitycheck(L);
+       assert(lua_checkstack(L, 20));
+       StackUnroller stack_unroller(L);
+       
        Inventory *inv = player->getInventory();
        assert(inv);
 
@@ -4356,6 +4715,91 @@ void scriptapi_get_creative_inventory(lua_State *L, ServerActiveObject *player)
        inventory_set_list_from_lua(inv, "main", L, -1, PLAYER_INVENTORY_SIZE);
 }
 
+static void get_auth_handler(lua_State *L)
+{
+       lua_getglobal(L, "minetest");
+       lua_getfield(L, -1, "registered_auth_handler");
+       if(lua_isnil(L, -1)){
+               lua_pop(L, 1);
+               lua_getfield(L, -1, "builtin_auth_handler");
+       }
+       if(lua_type(L, -1) != LUA_TTABLE)
+               throw LuaError(L, "Authentication handler table not valid");
+}
+
+bool scriptapi_get_auth(lua_State *L, const std::string &playername,
+               std::string *dst_password, std::set<std::string> *dst_privs)
+{
+       realitycheck(L);
+       assert(lua_checkstack(L, 20));
+       StackUnroller stack_unroller(L);
+       
+       get_auth_handler(L);
+       lua_getfield(L, -1, "get_auth");
+       if(lua_type(L, -1) != LUA_TFUNCTION)
+               throw LuaError(L, "Authentication handler missing get_auth");
+       lua_pushstring(L, playername.c_str());
+       if(lua_pcall(L, 1, 1, 0))
+               script_error(L, "error: %s", lua_tostring(L, -1));
+       
+       // nil = login not allowed
+       if(lua_isnil(L, -1))
+               return false;
+       luaL_checktype(L, -1, LUA_TTABLE);
+       
+       std::string password;
+       bool found = getstringfield(L, -1, "password", password);
+       if(!found)
+               throw LuaError(L, "Authentication handler didn't return password");
+       if(dst_password)
+               *dst_password = password;
+
+       lua_getfield(L, -1, "privileges");
+       if(!lua_istable(L, -1))
+               throw LuaError(L,
+                               "Authentication handler didn't return privilege table");
+       if(dst_privs)
+               read_privileges(L, -1, *dst_privs);
+       lua_pop(L, 1);
+       
+       return true;
+}
+
+void scriptapi_create_auth(lua_State *L, const std::string &playername,
+               const std::string &password)
+{
+       realitycheck(L);
+       assert(lua_checkstack(L, 20));
+       StackUnroller stack_unroller(L);
+       
+       get_auth_handler(L);
+       lua_getfield(L, -1, "create_auth");
+       if(lua_type(L, -1) != LUA_TFUNCTION)
+               throw LuaError(L, "Authentication handler missing create_auth");
+       lua_pushstring(L, playername.c_str());
+       lua_pushstring(L, password.c_str());
+       if(lua_pcall(L, 2, 0, 0))
+               script_error(L, "error: %s", lua_tostring(L, -1));
+}
+
+bool scriptapi_set_password(lua_State *L, const std::string &playername,
+               const std::string &password)
+{
+       realitycheck(L);
+       assert(lua_checkstack(L, 20));
+       StackUnroller stack_unroller(L);
+       
+       get_auth_handler(L);
+       lua_getfield(L, -1, "set_password");
+       if(lua_type(L, -1) != LUA_TFUNCTION)
+               throw LuaError(L, "Authentication handler missing set_password");
+       lua_pushstring(L, playername.c_str());
+       lua_pushstring(L, password.c_str());
+       if(lua_pcall(L, 2, 1, 0))
+               script_error(L, "error: %s", lua_tostring(L, -1));
+       return lua_toboolean(L, -1);
+}
+
 /*
        item callbacks and node callbacks
 */
@@ -4689,51 +5133,15 @@ void scriptapi_luaentity_get_properties(lua_State *L, u16 id,
        luaentity_get(L, id);
        //int object = lua_gettop(L);
 
-       /* Read stuff */
-       
-       prop->hp_max = getintfield_default(L, -1, "hp_max", 10);
-
-       getboolfield(L, -1, "physical", prop->physical);
-
-       getfloatfield(L, -1, "weight", prop->weight);
-
-       lua_getfield(L, -1, "collisionbox");
-       if(lua_istable(L, -1))
-               prop->collisionbox = read_aabbox3df32(L, -1, 1.0);
-       lua_pop(L, 1);
-
-       getstringfield(L, -1, "visual", prop->visual);
+       // Set default values that differ from ObjectProperties defaults
+       prop->hp_max = 10;
        
-       lua_getfield(L, -1, "visual_size");
-       if(lua_istable(L, -1))
-               prop->visual_size = read_v2f(L, -1);
-       lua_pop(L, 1);
-
-       lua_getfield(L, -1, "textures");
-       if(lua_istable(L, -1)){
-               prop->textures.clear();
-               int table = lua_gettop(L);
-               lua_pushnil(L);
-               while(lua_next(L, table) != 0){
-                       // key at index -2 and value at index -1
-                       if(lua_isstring(L, -1))
-                               prop->textures.push_back(lua_tostring(L, -1));
-                       else
-                               prop->textures.push_back("");
-                       // removes value, keeps key for next iteration
-                       lua_pop(L, 1);
-               }
-       }
-       lua_pop(L, 1);
+       // Deprecated: read object properties directly
+       read_object_properties(L, -1, prop);
        
-       lua_getfield(L, -1, "spritediv");
-       if(lua_istable(L, -1))
-               prop->spritediv = read_v2s16(L, -1);
-       lua_pop(L, 1);
-
-       lua_getfield(L, -1, "initial_sprite_basepos");
-       if(lua_istable(L, -1))
-               prop->initial_sprite_basepos = read_v2s16(L, -1);
+       // Read initial_properties
+       lua_getfield(L, -1, "initial_properties");
+       read_object_properties(L, -1, prop);
        lua_pop(L, 1);
 }