import deserialize_all code

placements/default.lua

@@ -1,11 +1,36 @@
 
 building_lib.register_placement("default", {
-	place = function(_, mapblock_pos, building_def, rotation, callback)
+	place = function(self, mapblock_pos, building_def, rotation, callback)
 		local catalog = mapblock_lib.get_catalog(building_def.catalog)
-		catalog:deserialize_all(mapblock_pos, {
-			callback = callback,
-			rotate_y = rotation
+		local size = self.get_size(self, mapblock_pos, building_def, rotation)
+		local catalog_pos1 = {x=0, y=0, z=0}
+		local catalog_pos2 = vector.add(catalog_pos1, vector.add(size, -1))
+		local iterator = mapblock_lib.pos_iterator(catalog_pos1, catalog_pos2)
+
+		local worker
+		worker = function()
+			local catalog_pos = iterator()
+			if not catalog_pos then
+				return callback()
+			end
+
+			-- TODO: rotate position
+			-- rel_pos = mapblock_lib.rotate_pos(rel_pos, self.manifest.range, options.rotate_y)
+
+			local world_pos = vector.add(mapblock_pos, catalog_pos)
+			catalog:deserialize(catalog_pos, world_pos, {
+				transform = {
+					rotate = {
+						axis = "y",
+						angle = rotation
+					}
+				}
 			})
+
+			minetest.after(0, worker)
+		end
+
+		worker()
 	end,
 	get_size = function(_, _, building_def, rotation)
 		local catalog = mapblock_lib.get_catalog(building_def.catalog)