Let player choose rear-guard circle for call-from-soul abilities

client/Assets/Vanguard/Runtime/UI/BattleView.cs

@@ -71,6 +71,10 @@ namespace Vanguard.UI
         private Text _abilityOverlayName;
         private RectTransform _abilityOverlayButtons;
         private int _abilityPromptInstanceId;
+        private RectTransform _choiceOverlay;
+        private Text _choiceOverlayTitle;
+        private RectTransform _choiceOverlayButtons;
+        private string _choicePromptKey;
         private MatchConnectionInfo _info;
         private MatchView _view;
         private bool _connecting;
@@ -231,6 +235,7 @@ namespace Vanguard.UI
             BuildPhasePanel();
             BuildCombatStats();
             BuildAbilityOverlay();
+            BuildChoiceOverlay();
             BuildReconnectOverlay();
             _cardMenu = new CardActionMenuView();
             _cardMenu.Build(_root);
@@ -301,6 +306,7 @@ namespace Vanguard.UI
             _board3D?.SetVisible(true);
             _overlays?.CloseAll();
             HideAbilityOverlay();
+            HideChoiceOverlay();
             _selfZones?.Update(null, self: true);
             _opponentZones?.Update(null, self: false);
             _topInfo.text = (info.DeckName ?? string.Empty) + "   ·   " + info.MatchId;
@@ -333,6 +339,7 @@ namespace Vanguard.UI
             _skipFeedback.gameObject.SetActive(false);
             _overlays?.CloseAll();
             HideAbilityOverlay();
+            HideChoiceOverlay();
             _cardMenu?.Hide();
             _combatStats?.gameObject.SetActive(false);
             _board3D?.SetVisible(false);
@@ -352,6 +359,7 @@ namespace Vanguard.UI
             UpdateFeedback();
             SanitizeInputLocks();
             SyncAbilityPrompt();
+            SyncChoicePrompt();
             UpdateAutoPhases();
         }
 
@@ -374,6 +382,8 @@ namespace Vanguard.UI
                 _inputLock.Release("card-menu");
             if (_abilityOverlay == null || !_abilityOverlay.gameObject.activeSelf)
                 _inputLock.Release("ability");
+            if (_choiceOverlay == null || !_choiceOverlay.gameObject.activeSelf)
+                _inputLock.Release("choice");
             if (!_feedbackPlaying && _feedbackQueue.Count == 0)
             {
                 _feedbackLockHeld = false;
@@ -736,6 +746,7 @@ namespace Vanguard.UI
 
             Render();
             SyncAbilityPrompt();
+            SyncChoicePrompt();
         }
 
         private void OnEvents(ServerEvents events)
@@ -1287,6 +1298,115 @@ namespace Vanguard.UI
             _inputLock.Release("ability");
         }
 
+        private void BuildChoiceOverlay()
+        {
+            _choiceOverlay = UiKit.CreatePanel(
+                _root,
+                "ChoiceOverlay",
+                new Color(0f, 0f, 0f, 0.72f));
+            var card = UiKit.CreateCenteredCard(
+                _choiceOverlay,
+                "ChoiceCard",
+                new Vector2(760f, 300f),
+                Panel);
+            UiKit.AddVerticalLayout(card, 22, 10);
+
+            var title = UiKit.CreateText(
+                card,
+                "ChoiceTitle",
+                "Выбор",
+                22,
+                new Color(1f, 0.78f, 0.42f),
+                TextAnchor.MiddleCenter);
+            title.fontStyle = FontStyle.Bold;
+            UiKit.SetPreferredHeight(title, 34f);
+
+            _choiceOverlayTitle = UiKit.CreateText(
+                card,
+                "ChoicePrompt",
+                string.Empty,
+                18,
+                Color.white,
+                TextAnchor.MiddleCenter);
+            UiKit.SetPreferredHeight(_choiceOverlayTitle, 52f);
+
+            _choiceOverlayButtons = UiKit.CreatePanel(
+                card, "ChoiceButtons", Color.clear);
+            UiKit.AddHorizontalLayout(_choiceOverlayButtons, 0, 8);
+            UiKit.SetPreferredHeight(_choiceOverlayButtons, 52f);
+            _choiceOverlay.gameObject.SetActive(false);
+        }
+
+        private bool IsRearGuardChoice()
+        {
+            var prompt = _view?.Choice?.Prompt;
+            return !string.IsNullOrEmpty(prompt)
+                   && (prompt.IndexOf("круг", StringComparison.OrdinalIgnoreCase) >= 0
+                       || prompt.IndexOf("rear", StringComparison.OrdinalIgnoreCase) >= 0);
+        }
+
+        private void SyncChoicePrompt()
+        {
+            if (_choiceOverlay == null || _sending)
+                return;
+
+            var choice = _view?.Choice;
+            if (choice == null
+                || _view == null
+                || _view.ActivePlayer != _view.You
+                || !IsRearGuardChoice())
+            {
+                HideChoiceOverlay();
+                return;
+            }
+
+            var key = (choice.Prompt ?? string.Empty) + "|" +
+                      string.Join(",", choice.Options.Select(option => option.Slot));
+            if (_choiceOverlay.gameObject.activeSelf
+                && string.Equals(_choicePromptKey, key, StringComparison.Ordinal))
+                return;
+
+            _choicePromptKey = key;
+            _choiceOverlayTitle.text = choice.Prompt ?? "Выберите круг";
+            UiKit.MakeLiteral(_choiceOverlayTitle);
+            ClearChildren(_choiceOverlayButtons);
+
+            for (var i = 0; i < choice.Options.Count; i++)
+            {
+                var index = i;
+                var option = choice.Options[i];
+                var button = UiKit.CreateButton(
+                    _choiceOverlayButtons,
+                    "Choice_" + option.Slot,
+                    string.IsNullOrWhiteSpace(option.Label)
+                        ? "Круг " + (option.Slot + 1)
+                        : option.Label,
+                    () =>
+                    {
+                        HideChoiceOverlay();
+                        OnIntentClicked(
+                            new ChooseIntent { Index = index },
+                            ignoreInputLock: true);
+                    },
+                    16);
+                UiKit.SetPreferredHeight(button, 46f);
+            }
+
+            _choiceOverlay.SetAsLastSibling();
+            _choiceOverlay.gameObject.SetActive(true);
+            _inputLock.Acquire("choice");
+        }
+
+        private void HideChoiceOverlay()
+        {
+            if (_choiceOverlay == null)
+                return;
+
+            _choicePromptKey = null;
+            _choiceOverlay.gameObject.SetActive(false);
+            _inputLock.Release("choice");
+        }
+
         private void BuildReconnectOverlay()
         {
             _reconnectOverlay = UiKit.CreatePanel(
@@ -1426,6 +1546,15 @@ namespace Vanguard.UI
 
             if (_view != null)
             {
+                if (IsRearGuardChoice())
+                {
+                    foreach (var option in _view.Choice.Options)
+                    {
+                        if (option.Slot is >= 0 and < 5)
+                            state.Highlights.Add(new BoardSlotKey(_view.You, option.Slot));
+                    }
+                }
+
                 foreach (var intent in _view.LegalIntents ?? new List<IntentPayload>())
                 {
                     switch (intent)
@@ -1718,7 +1847,24 @@ namespace Vanguard.UI
 
         private void OnBoard3DSlotClicked(BoardCardRef slot)
         {
-            if (_view == null || _sending || _inputLock.IsLocked || _discardChoiceActive)
+            if (_view == null || _sending || _discardChoiceActive)
+                return;
+
+            if (IsRearGuardChoice() && slot.Player == _view.You)
+            {
+                var index = _view.Choice.Options.FindIndex(
+                    option => option.Slot == slot.Slot);
+                if (index >= 0)
+                {
+                    HideChoiceOverlay();
+                    OnIntentClicked(
+                        new ChooseIntent { Index = index },
+                        ignoreInputLock: true);
+                    return;
+                }
+            }
+
+            if (_inputLock.IsLocked)
                 return;
 
             if (slot.Zone == BoardZone.Guardian)
@@ -2877,7 +3023,8 @@ namespace Vanguard.UI
                 .Where(intent => !IsBoardIntent(intent)
                     && !IsPhaseIntent(intent)
                     && intent is not ActivateAbilityIntent
-                    && intent is not ResolveAbilityIntent)
+                    && intent is not ResolveAbilityIntent
+                    && !(intent is ChooseIntent && IsRearGuardChoice()))
                 .ToList();
 
             if (_pendingIntents.Count > 0)

client/Assets/Vanguard/Tests/Editor/ClientSmokeTests.cs

@@ -325,6 +325,61 @@ namespace Vanguard.Tests
             }
         }
 
+        [Test]
+        public void Rear_Guard_Choice_Shows_Overlay_With_Circles()
+        {
+            var config = new AppConfig();
+            config.Load();
+            var tokens = new TokenStore();
+            var api = new ApiClient(config, tokens);
+            var player = new PlayerState();
+            var auth = new AuthService(api, tokens, player);
+            var meta = new MetaService(api, player);
+            var canvas = UiKit.CreateCanvas("Choice Test Canvas");
+
+            try
+            {
+                var battle = new BattleView(canvas.transform, meta, () => { });
+                var match = new MatchView
+                {
+                    You = 0,
+                    ActivePlayer = 0,
+                    Choice = new ChoiceView
+                    {
+                        Player = 0,
+                        Prompt = "Выберите круг для призыва Barcgal",
+                        Options = new List<ChoiceOptionView>
+                        {
+                            new() { Slot = 0, Label = "Круг 1" },
+                            new() { Slot = 1, Label = "Круг 2" },
+                            new() { Slot = 2, Label = "Круг 3" },
+                            new() { Slot = 3, Label = "Круг 4" },
+                            new() { Slot = 4, Label = "Круг 5" },
+                        },
+                    },
+                    LegalIntents = new List<IntentPayload>(),
+                };
+
+                typeof(BattleView)
+                    .GetField("_view", BindingFlags.Instance | BindingFlags.NonPublic)!
+                    .SetValue(battle, match);
+                typeof(BattleView)
+                    .GetMethod("SyncChoicePrompt", BindingFlags.Instance | BindingFlags.NonPublic)!
+                    .Invoke(battle, null);
+
+                var overlay = Resources.FindObjectsOfTypeAll<GameObject>()
+                    .First(go => go.name == "ChoiceOverlay");
+                Assert.IsTrue(overlay.activeSelf);
+                Assert.IsTrue(Resources.FindObjectsOfTypeAll<GameObject>()
+                    .Any(go => go.name == "Choice_3"));
+            }
+            finally
+            {
+                Object.DestroyImmediate(canvas.gameObject);
+                Cleanup();
+            }
+        }
+
         private static RectTransform FindRect(string name) =>
             Resources.FindObjectsOfTypeAll<GameObject>()
                 .Where(go => go.scene.IsValid() && go.name == name)

server/src/Vanguard.Rules/Engine/Abilities/CardScripts.cs

@@ -351,7 +351,10 @@ public sealed class BarcgalScript : CardScript
                 Condition = ctx =>
                     ctx.Other is not null &&
                     ctx.Catalog.CardOf(ctx.Other.PrintingId).Clan == Clan.RoyalPaladin,
-                Resolve = ctx => ctx.Engine.CallFromSoul(ctx.Source, ctx.Owner),
+                Resolve = ctx => ctx.Engine.AskEmptyRearGuardChoice(
+                    ctx.Owner,
+                    "Выберите круг для призыва Barcgal",
+                    slot => ctx.Engine.CallFromSoul(ctx.Source, ctx.Owner, slot)),
             };
         }
     }

server/src/Vanguard.Rules/Engine/Abilities/CardScriptsBT01.cs

@@ -744,7 +744,10 @@ public sealed class ReturnToDeckOnBoostScript : CardScript
                 Condition = ctx =>
                     ctx.Other is not null &&
                     ctx.Catalog.CardOf(ctx.Other.PrintingId).Clan == _clan,
-                Resolve = ctx => ctx.Engine.CallFromSoul(ctx.Source, ctx.Owner),
+                Resolve = ctx => ctx.Engine.AskEmptyRearGuardChoice(
+                    ctx.Owner,
+                    "Выберите круг для призыва карты",
+                    slot => ctx.Engine.CallFromSoul(ctx.Source, ctx.Owner, slot)),
             };
 
             yield return new AbilityDefinition
@@ -802,7 +805,10 @@ public sealed class GuidingZombieScript : CardScript
                 Condition = ctx =>
                     ctx.Other is not null &&
                     ctx.Catalog.CardOf(ctx.Other.PrintingId).Clan == Clan.Granblue,
-                Resolve = ctx => ctx.Engine.CallFromSoul(ctx.Source, ctx.Owner),
+                Resolve = ctx => ctx.Engine.AskEmptyRearGuardChoice(
+                    ctx.Owner,
+                    "Выберите круг для призыва карты",
+                    slot => ctx.Engine.CallFromSoul(ctx.Source, ctx.Owner, slot)),
             };
         }
     }

server/src/Vanguard.Rules/Engine/GameEngine.cs

@@ -585,14 +585,13 @@ public sealed class GameEngine
             u is not null && State.Catalog.CardOf(u.PrintingId).Clan == clan);
 
     /// <summary>Призыв карты из души — используется способностями вроде Barcgal.</summary>
-    public bool CallFromSoul(CardInstance card, int player)
+    public bool CallFromSoul(CardInstance card, int player, int slot = -1)
     {
         var p = State.Players[player];
         if (!p.Soul.Contains(card))
             return false;
 
-        var slot = Array.FindIndex(p.RearGuards, u => u is null);
+        if (slot < 0 || slot >= PlayerState.RearGuardSlots || p.RearGuards[slot] is not null)
-        if (slot < 0)
             return false;
 
         p.Soul.Remove(card);

server/tests/Vanguard.Rules.Tests/GameEngineTests.cs

@@ -795,7 +795,17 @@ public class GameEngineTests
         Assert.True(engine.Execute(new ResolveAbilityCommand(true)).Accepted);
 
         Assert.Null(engine.State.PendingAbility);
-        Assert.Contains(engine.State.Players[0].RearGuards, u => u?.PrintingId == Barcgal);
+        Assert.NotNull(engine.State.PendingChoice);
+        Assert.Equal(Step.Choice, engine.State.Step);
+        Assert.Equal(5, engine.State.PendingChoice!.Options.Count);
+
+        // Choose a non-first circle to verify the player controls placement.
+        Assert.True(engine.Execute(new ChooseCommand(3)).Accepted);
+
+        Assert.Null(engine.State.PendingChoice);
+        Assert.Equal(
+            Barcgal,
+            engine.State.Players[0].RearGuards[3]?.PrintingId);
         Assert.DoesNotContain(engine.State.Players[0].Soul, c => c.PrintingId == Barcgal);
     }