Invert the meaning of screwdriver Sneak for doors

GROUPS.md

@@ -103,6 +103,10 @@ Action groups:
 * `flora`: This is a plant that spreads on Dirt with Grass
 * `soil`: Usable by hoe
 * `not_in_craft_guide`: Item won't appear in craft guide
+* `rotation_takes_precedence=1`: Group for nodes. Normally, if rotation tool (e.g. screwdriver) is "placed"
+   on this node, the `on_rightclick` action takes precedence, and the rotation action is used when Sneak
+   key is held. But if this group is set, it's the other way around: The rotation action is executed
+   by default and if Sneak is pressed, `on_rightclick` is executed instead
 
 Legacy groups:
 * `flammable`: Considered flammable (Note: This game has no fire)

mods/doors/api.lua

@@ -891,6 +891,7 @@ function doors.register_door( name, def )
 	def.drop = name
 	def.groups.not_in_creative_inventory = 1
 	def.groups.door = 1
+	def.groups.rotation_takes_precedence = 1
 
 	-- define the crafting recipe
 
@@ -1063,6 +1064,7 @@ function doors.register_trapdoor( name, def )
 		def.groups = {}
 	end
 	def.groups.trapdoor = 1
+	def.groups.rotation_takes_precedence = 1
 
 	-- define the opening/closing sounds
 

mods/screwdriver/init.lua

@@ -104,8 +104,22 @@ screwdriver.handler = function(itemstack, user, pointed_thing, mode, uses)
 	if not ndef then
 		return itemstack
 	end
+
+	-- Execute `on_rightclick` of node if present and player did not press Sneak,
+	-- otherwise, the rotation action is executed.
+	-- If `rotation_takes_precedence=1` group is present, this behavior is flipped:
+	-- `on_rightclick` executed if sneak pressed, rotation action executed if sneak
+	-- not pressed.
+	local prec = minetest.get_item_group(node.name, "rotation_takes_precedence") == 1
+	local sneak = false
+	if user then
+		sneak = user:get_player_control().sneak
+		if prec then
+			sneak = not sneak
+		end
+	end
 	if mode == screwdriver.ROTATE_AXIS and ndef and ndef.on_rightclick and
-			((not user) or (user and not user:get_player_control().sneak)) then
+			((not user) or (not sneak)) then
 		return ndef.on_rightclick(pos, node, user, itemstack,
 				pointed_thing) or itemstack
 	end