New command: //orient, that rotates oriented nodes such as furnaces around the Y-axis by a specified angle.

worldedit/manipulations.lua

@@ -304,6 +304,62 @@ worldedit.rotate = function(pos1, pos2, axis, angle)
 	return count, pos1, pos2
 end
 
+--rotates all oriented nodes in a region defined by the positions `pos1` and `pos2` by `angle` degrees clockwise (90 degree increment) around the Y axis, returning the number of nodes oriented
+worldedit.orient = function(pos1, pos2, angle)
+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
+	local nodes = minetest.registered_nodes
+	local env = minetest.env
+	local wallmounted = {
+		[90]={[0]=0, [1]=1, [2]=5, [3]=4, [4]=2, [5]=3},
+		[180]={[0]=0, [1]=1, [2]=3, [3]=2, [4]=5, [5]=4},
+		[270]={[0]=0, [1]=1, [2]=4, [3]=5, [4]=3, [5]=2}
+	}
+	local facedir = {
+		[90]={[0]=1, [1]=2, [2]=3, [3]=0},
+		[180]={[0]=2, [1]=3, [2]=0, [3]=1},
+		[270]={[0]=3, [1]=0, [2]=1, [3]=2}
+	}
+
+	angle = angle % 360
+	if angle == 0 then
+		return 0
+	end
+	local wallmounted_substitution = wallmounted[angle]
+	local facedir_substitution = facedir[angle]
+
+	local count = 0
+	local pos = {x=pos1.x, y=0, z=0}
+	while pos.x <= pos2.x do
+		pos.y = pos1.y
+		while pos.y <= pos2.y do
+			pos.z = pos1.z
+			while pos.z <= pos2.z do
+				local node = env:get_node(pos)
+				local def = nodes[node.name]
+				if def then
+					if def.paramtype2 == "wallmounted" then
+						node.param2 = wallmounted_substitution[node.param2]
+						local meta = env:get_meta(pos):to_table()
+						env:add_node(pos, node)
+						env:get_meta(pos):from_table(meta)
+						count = count + 1
+					elseif def.paramtype2 == "facedir" then
+						node.param2 = facedir_substitution[node.param2]
+						local meta = env:get_meta(pos):to_table()
+						env:add_node(pos, node)
+						env:get_meta(pos):from_table(meta)
+						count = count + 1
+					end
+				end
+				pos.z = pos.z + 1
+			end
+			pos.y = pos.y + 1
+		end
+		pos.x = pos.x + 1
+	end
+	return count
+end
+
 --fixes the lighting in a region defined by positions `pos1` and `pos2`, returning the number of nodes updated
 worldedit.fixlight = function(pos1, pos2)
 	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)