Add setting to enable legacy selectionbox

init.lua

@@ -1,5 +1,7 @@
 local S = minetest.get_translator("flying_carpet")
 
+local legacy_selectionbox = minetest.settings:get_bool("flying_carpet_legacy_selectionbox", false)
+
 --
 -- Helper functions
 --
@@ -95,11 +97,18 @@ local update_velocities = function(velocities, new_value)
 	return velocities
 end
 
+local collisionbox = {-1,-0.02,-1, 1,0.02,1}
+if legacy_selectionbox then
+	selectionbox = collisionbox
+else
+	selectionbox = {-1,-0.03,-0.69, 1,0.03,0.69,rotate=true}
+end
 local carpet = {
 	initial_properties = {
 		physical = true,
 		collide_with_objects = false,
-		collisionbox = {-1,-0.02,-1, 1,0.02,1},
+		collisionbox = collisionbox,
+		selectionbox = selectionbox,
 		visual = "mesh",
 		mesh = "flying_carpet_model.obj",
 		textures = {"flying_carpet_surface.png"},

settingtypes.txt

@@ -0,0 +1,8 @@
+# If enabled, the flying carpet uses an outdated non-rotated
+# square-shaped selection box.
+# If disabled, the flying carpet has a selection box that matches
+# its shape and rotation perfectly.
+# Rotating selection boxes are supported since Minetest 5.7.0.
+# If your Minetest version is older, enable this setting.
+# If not, disable this setting.
+flying_carpet_legacy_selectionbox (Use legacy selection box) bool false