self destruct book entity when table gone

GROUPS.md

@@ -21,7 +21,7 @@ The basic digging time groups determine by which tools a node can be dug.
 * `swordy=1`: Diggable by sword (any material), and this node is *not* a cobweb
 * `swordy_cobweb=1`: Diggable by sword (any material), and this node is a cobweb
 * `shearsy=1`: Diggable by shears, and this node is *not* wool
-* `shearsy_wool=1`: Diggable by shears, and this node is wool
+* `shearsy=wool=1`: Diggable by shears, and this node is wool
 * `handy=1`: Breakable by hand and this node gives it useful drop when dug by hand. All nodes which are breakable by pickaxe, axe, shovel, sword or shears are also automatically breakable by hand, but not neccess
 * `creative_breakable=1`: Block is breakable by hand in creative mode. This group is implied if the node belongs to any other digging group
 

mods/ITEMS/mcl_enchanting/init.lua

@@ -149,19 +149,22 @@ minetest.register_craftitem("mcl_enchanting:book_enchanted", {
 minetest.register_alias("mcl_books:book_enchanted", "mcl_enchanting:book_enchanted")
 
 local spawn_book_entity = function(pos, respawn)
-	if respawn then
-		-- Check if we already have a book
-		local objs = minetest.get_objects_inside_radius(pos, 1)
-		for o=1, #objs do
-			local obj = objs[o]
-			local lua = obj:get_luaentity()
-			if lua and lua.name == "mcl_enchanting:book" then
-				if lua._table_pos and vector.equals(pos, lua._table_pos) then
-					return
-				end
+	local cnt=0
+	-- Check if we already have books within 5 nodes distance to avoid too many entities
+	local objs = minetest.get_objects_inside_radius(pos, 5)
+	for o=1, #objs do
+		local obj = objs[o]
+		local lua = obj:get_luaentity()
+		if lua and lua.name == "mcl_enchanting:book" then
+			if respawn and lua._table_pos and vector.equals(pos, lua._table_pos) then
+				return
 			end
+			cnt=cnt+1
 		end
 	end
+	
+	if cnt > 10 then return end
+
 	local obj = minetest.add_entity(vector.add(pos, mcl_enchanting.book_offset), "mcl_enchanting:book")
 	if obj then
 		local lua = obj:get_luaentity()
@@ -192,8 +195,8 @@ minetest.register_entity("mcl_enchanting:book", {
 		local old_player_near = self._player_near
 		local player_near = false
 		local player
-		for _, obj in ipairs(minetest.get_objects_inside_radius(vector.subtract(self.object:get_pos(), mcl_enchanting.book_offset), 2.5)) do
-			if obj:is_player() then
+		for _,obj in pairs(minetest.get_connected_players()) do
+			if vector.distance(obj:get_pos(),self.object:get_pos()) < 2.5 then
 				player_near = true
 				player = obj
 			end
@@ -210,6 +213,13 @@ minetest.register_entity("mcl_enchanting:book", {
 		end
 		self._player_near = player_near
 		mcl_enchanting.check_animation_schedule(self, dtime)
+		
+		if self._table_pos then
+			local tn=minetest.get_node_or_nil(self._table_pos)
+			if tn and tn.name ~= "mcl_enchanting:table" then
+				self.object:remove()
+			end
+		end
 	end,
 })
 
@@ -309,8 +319,8 @@ minetest.register_abm({
 	nodenames = "mcl_enchanting:table",
 	action = function(pos)
 		local playernames = {}
-		for _, obj in ipairs(minetest.get_objects_inside_radius(pos, 15)) do
-			if obj:is_player() then
+		for _,obj in pairs(minetest.get_connected_players()) do
+			if vector.distance(obj:get_pos(),pos) < 15 then
 				table.insert(playernames, obj:get_player_name())
 			end
 		end

mods/ITEMS/mcl_farming/shared_functions.lua

@@ -388,11 +388,12 @@ function mcl_farming:add_gourd(full_unconnected_stem, connected_stem_basename, s
 					{ x=0, y=0, z=-1 },
 					{ x=0, y=0, z=1 },
 				}
+				local floorpos, floor
 				for n=#neighbors, 1, -1 do
 					local offset = neighbors[n]
 					local blockpos = vector.add(stempos, offset)
-					local floorpos = { x=blockpos.x, y=blockpos.y-1, z=blockpos.z }
-					local floor = minetest.get_node(floorpos)
+					floorpos = { x=blockpos.x, y=blockpos.y-1, z=blockpos.z }
+					floor = minetest.get_node(floorpos)
 					local block = minetest.get_node(blockpos)
 					local soilgroup = minetest.get_item_group(floor.name, "soil")
 					if not ((minetest.get_item_group(floor.name, "grass_block") == 1 or floor.name=="mcl_core:dirt" or soilgroup == 2 or soilgroup == 3) and block.name == "air") then
@@ -406,8 +407,6 @@ function mcl_farming:add_gourd(full_unconnected_stem, connected_stem_basename, s
 					local r = math.random(1, #neighbors)
 					local offset = neighbors[r]
 					local blockpos = vector.add(stempos, offset)
-					local floorpos = { x=blockpos.x, y=blockpos.y-1, z=blockpos.z }
-					local floor = minetest.get_node(floorpos)
 					local p2
 					if offset.x == 1 then
 						minetest.set_node(stempos, {name=connected_stem_names[1]})