added Character Setup (#511)

* added Character Setup

* whoops

* reverted unrelated changes

* Made everything work post-rebase

* Removed unused PreferencesChanged event

* nope, don't need this

* HumanoidProfileEditorPanel -> HumanoidProfileEditor

* Set initial data for hair pickers

* Fixed nullable warning

* Renamed LooksComponent -> HumanoidAppearanceComponent

* Renamed LooksComponentState -> HumanoidAppearanceComponentState

* Final renaming maybe

* Use a human-like dummy instead of a real human

* Change preferences structs back to classes

Content.Client/UserInterface/LobbyCharacterPreviewPanel.cs

@@ -0,0 +1,101 @@
+using Content.Client.GameObjects.Components.Mobs;
+using Content.Client.Interfaces;
+using Content.Shared.Preferences;
+using Robust.Client.Interfaces.GameObjects.Components;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.Localization;
+using Robust.Shared.Map;
+using Robust.Shared.Maths;
+
+namespace Content.Client.UserInterface
+{
+    public class LobbyCharacterPreviewPanel : Control
+    {
+        private readonly IClientPreferencesManager _preferencesManager;
+        private IEntity _previewDummy;
+        private readonly Label _summaryLabel;
+
+        public LobbyCharacterPreviewPanel(IEntityManager entityManager,
+            ILocalizationManager localization,
+            IClientPreferencesManager preferencesManager)
+        {
+            _preferencesManager = preferencesManager;
+            _previewDummy = entityManager.SpawnEntityAt("HumanMob_Dummy",
+                new MapCoordinates(Vector2.Zero, MapId.Nullspace));
+
+            var header = new NanoHeading
+            {
+                Text = localization.GetString("Character setup")
+            };
+
+            CharacterSetupButton = new Button
+            {
+                Text = localization.GetString("Customize"),
+                SizeFlagsHorizontal = SizeFlags.None
+            };
+
+            _summaryLabel = new Label();
+
+            var viewSouth = MakeSpriteView(_previewDummy, Direction.South);
+            var viewNorth = MakeSpriteView(_previewDummy, Direction.North);
+            var viewWest = MakeSpriteView(_previewDummy, Direction.West);
+            var viewEast = MakeSpriteView(_previewDummy, Direction.East);
+
+            var vBox = new VBoxContainer();
+
+            vBox.AddChild(header);
+            vBox.AddChild(CharacterSetupButton);
+
+            vBox.AddChild(_summaryLabel);
+
+            var hBox = new HBoxContainer();
+            hBox.AddChild(viewSouth);
+            hBox.AddChild(viewNorth);
+            hBox.AddChild(viewWest);
+            hBox.AddChild(viewEast);
+
+            vBox.AddChild(hBox);
+
+            AddChild(vBox);
+
+            UpdateUI();
+        }
+
+        public Button CharacterSetupButton { get; }
+
+        protected override void Dispose(bool disposing)
+        {
+            base.Dispose(disposing);
+            if (!disposing) return;
+            _previewDummy.Delete();
+            _previewDummy = null;
+        }
+
+        private static SpriteView MakeSpriteView(IEntity entity, Direction direction)
+        {
+            return new SpriteView
+            {
+                Sprite = entity.GetComponent<ISpriteComponent>(),
+                OverrideDirection = direction,
+                Scale = (2, 2)
+            };
+        }
+
+        public void UpdateUI()
+        {
+            if (!(_preferencesManager.Preferences.SelectedCharacter is HumanoidCharacterProfile selectedCharacter))
+            {
+                _summaryLabel.Text = string.Empty;
+            }
+            else
+            {
+                _summaryLabel.Text = selectedCharacter.Summary;
+                _previewDummy
+                    .GetComponent<HumanoidAppearanceComponent>()
+                    .Appearance = (HumanoidCharacterAppearance) selectedCharacter.CharacterAppearance;
+            }
+        }
+    }
+}