Add shortcut to flip for construction menu (#14152)

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Client/Construction/ConstructionSystem.cs

@@ -46,6 +46,8 @@ namespace Content.Client.Construction
                     new PointerInputCmdHandler(HandleOpenCraftingMenu))
                 .Bind(EngineKeyFunctions.Use,
                     new PointerInputCmdHandler(HandleUse, outsidePrediction: true))
+                .Bind(ContentKeyFunctions.EditorFlipObject,
+                    new PointerInputCmdHandler(HandleFlip))
                 .Register<ConstructionSystem>();
 
             SubscribeLocalEvent<ConstructionGhostComponent, ExaminedEvent>(HandleConstructionGhostExamined);
@@ -99,6 +101,7 @@ namespace Content.Client.Construction
         public event EventHandler<CraftingAvailabilityChangedArgs>? CraftingAvailabilityChanged;
         public event EventHandler<string>? ConstructionGuideAvailable;
         public event EventHandler? ToggleCraftingWindow;
+        public event EventHandler? FlipConstructionPrototype;
 
         private void HandleAckStructure(AckStructureConstructionMessage msg)
         {
@@ -118,6 +121,13 @@ namespace Content.Client.Construction
             return true;
         }
 
+        private bool HandleFlip(in PointerInputCmdHandler.PointerInputCmdArgs args)
+        {
+            if (args.State == BoundKeyState.Down)
+                FlipConstructionPrototype?.Invoke(this, EventArgs.Empty);
+            return true;
+        }
+
         private void UpdateCraftingAvailability(bool available)
         {
             if (CraftingEnabled == available)

Content.Client/Construction/UI/ConstructionMenuPresenter.cs

@@ -148,6 +148,9 @@ namespace Content.Client.Construction.UI
 
             foreach (var recipe in _prototypeManager.EnumeratePrototypes<ConstructionPrototype>())
             {
+                if (recipe.Hide)
+                    continue;
+
                 if (!string.IsNullOrEmpty(search))
                 {
                     if (!recipe.Name.ToLowerInvariant().Contains(search.Trim().ToLowerInvariant()))
@@ -342,6 +345,7 @@ namespace Content.Client.Construction.UI
         {
             _constructionSystem = system;
             system.ToggleCraftingWindow += SystemOnToggleMenu;
+            system.FlipConstructionPrototype += SystemFlipConstructionPrototype;
             system.CraftingAvailabilityChanged += SystemCraftingAvailabilityChanged;
             system.ConstructionGuideAvailable += SystemGuideAvailable;
             if (_uiManager.GetActiveUIWidgetOrNull<GameTopMenuBar>() != null)
@@ -358,6 +362,7 @@ namespace Content.Client.Construction.UI
                 throw new InvalidOperationException();
 
             system.ToggleCraftingWindow -= SystemOnToggleMenu;
+            system.FlipConstructionPrototype -= SystemFlipConstructionPrototype;
             system.CraftingAvailabilityChanged -= SystemCraftingAvailabilityChanged;
             system.ConstructionGuideAvailable -= SystemGuideAvailable;
             _constructionSystem = null;
@@ -392,6 +397,22 @@ namespace Content.Client.Construction.UI
             }
         }
 
+        private void SystemFlipConstructionPrototype(object? sender, EventArgs eventArgs)
+        {
+            if (!_placementManager.IsActive || _placementManager.Eraser)
+            {
+                return;
+            }
+
+            if (_selected == null || _selected.Mirror == String.Empty)
+            {
+                return;
+            }
+
+            _selected = _prototypeManager.Index<ConstructionPrototype>(_selected.Mirror);
+            UpdateGhostPlacement();
+        }
+
         private void SystemGuideAvailable(object? sender, string e)
         {
             if (!CraftingAvailable)

Content.Client/Input/ContentContexts.cs

@@ -37,6 +37,9 @@ namespace Content.Client.Input
             // Not in engine, because engine cannot check for sanbox/admin status before starting placement.
             common.AddFunction(ContentKeyFunctions.EditorCopyObject);
 
+            // Not in engine because the engine doesn't understand what a flipped object is
+            common.AddFunction(ContentKeyFunctions.EditorFlipObject);
+
             var human = contexts.GetContext("human");
             human.AddFunction(EngineKeyFunctions.MoveUp);
             human.AddFunction(EngineKeyFunctions.MoveDown);

Content.Client/Options/UI/Tabs/KeyRebindTab.xaml.cs

@@ -184,6 +184,7 @@ namespace Content.Client.Options.UI.Tabs
             AddButton(EngineKeyFunctions.EditorGridPlace);
             AddButton(EngineKeyFunctions.EditorLinePlace);
             AddButton(EngineKeyFunctions.EditorRotateObject);
+            AddButton(ContentKeyFunctions.EditorFlipObject);
             AddButton(ContentKeyFunctions.EditorCopyObject);
 
             AddHeader("ui-options-header-dev");