hide planner overlay during the tutorial

docs/changelog.txt

@@ -45,6 +45,7 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 
 ## Misc Improvements
 - `buildingplan`: items in the item selection dialog should now use the same item quality symbols as the base game
+- `buildingplan`: hide planner overlay while the DF tutorial is active so that it can detect when you have placed the carpenter's workshop and bed and allow you to finish the tutorial
 -@ `buildingplan`: rearranged elements of ``planneroverlay`` interface
 -@ `buildingplan`: rearranged elements of ``itemselection`` interface
 - Mods: scripts in mods that are only in the steam workshop directory are now accessible. this means that a script-only mod that you never mark as "active" when generating a world will still receive automatic updates and be usable from in-game

plugins/lua/buildingplan/planneroverlay.lua

@@ -141,8 +141,15 @@ local function is_construction()
     return uibs.building_type == df.building_type.Construction
 end
 
+local function is_tutorial_open()
+    local help = df.global.game.main_interface.help
+    return help.open and
+            help.context == df.help_context_type.START_TUTORIAL_WORKSHOPS_AND_TASKS
+end
+
 local function is_plannable()
-    return get_cur_filters() and
+    return not is_tutorial_open() and
+            get_cur_filters() and
             not (is_construction() and
                 uibs.building_subtype == df.construction_type.TrackNSEW)
 end