Теперь предметы можно передавать из рук в руки (#462)

* add: Теперь предеты можно передовать из рук в руки

* Кудато не туда уехало

Content.Client/_White/OfferItem/OfferItemIndicatorsOverlay.cs

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+using System.Numerics;
+using Robust.Client.GameObjects;
+using Robust.Client.Graphics;
+using Robust.Client.Input;
+using Robust.Client.UserInterface;
+using Robust.Shared.Enums;
+using Robust.Shared.Utility;
+
+namespace Content.Client._White.OfferItem;
+
+public sealed class OfferItemIndicatorsOverlay : Overlay
+{
+    private readonly IInputManager _inputManager;
+    private readonly IEntityManager _entMan;
+    private readonly IEyeManager _eye;
+    private readonly OfferItemSystem _offer;
+
+    private readonly Texture _sight;
+
+    public override OverlaySpace Space => OverlaySpace.ScreenSpace;
+
+    private readonly Color _mainColor = Color.White.WithAlpha(0.3f);
+    private readonly Color _strokeColor = Color.Black.WithAlpha(0.5f);
+    private readonly float _scale = 0.6f;  // 1 is a little big
+
+    public OfferItemIndicatorsOverlay(IInputManager input, IEntityManager entMan,
+            IEyeManager eye, OfferItemSystem offerSys)
+    {
+        _inputManager = input;
+        _entMan = entMan;
+        _eye = eye;
+        _offer = offerSys;
+
+        var spriteSys = _entMan.EntitySysManager.GetEntitySystem<SpriteSystem>();
+        _sight = spriteSys.Frame0(new SpriteSpecifier.Rsi(new ResPath("/Textures/White/Interface/give_item.rsi"),
+            "give_item"));
+    }
+
+    protected override bool BeforeDraw(in OverlayDrawArgs args)
+    {
+        if (!_offer.IsInOfferMode())
+            return false;
+
+        return base.BeforeDraw(in args);
+    }
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        var mouseScreenPosition = _inputManager.MouseScreenPosition;
+        var mousePosMap = _eye.PixelToMap(mouseScreenPosition);
+        if (mousePosMap.MapId != args.MapId)
+            return;
+
+
+        var mousePos = mouseScreenPosition.Position;
+        var uiScale = (args.ViewportControl as Control)?.UIScale ?? 1f;
+        var limitedScale = uiScale > 1.25f ? 1.25f : uiScale;
+
+        DrawSight(_sight, args.ScreenHandle, mousePos, limitedScale * _scale);
+    }
+
+    private void DrawSight(Texture sight, DrawingHandleScreen screen, Vector2 centerPos, float scale)
+    {
+        var sightSize = sight.Size * scale;
+        var expandedSize = sightSize + new Vector2(7f, 7f);
+
+        screen.DrawTextureRect(sight,
+            UIBox2.FromDimensions(centerPos - sightSize * 0.5f, sightSize), _strokeColor);
+        screen.DrawTextureRect(sight,
+            UIBox2.FromDimensions(centerPos - expandedSize * 0.5f, expandedSize), _mainColor);
+    }
+}

Content.Client/_White/OfferItem/OfferItemSystem.cs

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+using Content.Shared._White;
+using Content.Shared._White.OfferItem;
+using Content.Shared.CCVar;
+using Robust.Client.Graphics;
+using Robust.Client.Input;
+using Robust.Client.Player;
+using Robust.Shared.Configuration;
+
+namespace Content.Client._White.OfferItem;
+
+public sealed class OfferItemSystem : SharedOfferItemSystem
+{
+    [Dependency] private readonly IOverlayManager _overlayManager = default!;
+    [Dependency] private readonly IPlayerManager _playerManager = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+    [Dependency] private readonly IInputManager _inputManager = default!;
+    [Dependency] private readonly IEyeManager _eye = default!;
+
+    public override void Initialize()
+    {
+        Subs.CVar(_cfg, WhiteCVars.OfferModeIndicatorsPointShow, OnShowOfferIndicatorsChanged, true);
+    }
+    public override void Shutdown()
+    {
+        _overlayManager.RemoveOverlay<OfferItemIndicatorsOverlay>();
+
+        base.Shutdown();
+    }
+
+    public bool IsInOfferMode()
+    {
+        var entity = _playerManager.LocalEntity;
+
+        if (entity == null)
+            return false;
+
+        return IsInOfferMode(entity.Value);
+    }
+    private void OnShowOfferIndicatorsChanged(bool isShow)
+    {
+        if (isShow)
+        {
+            _overlayManager.AddOverlay(new OfferItemIndicatorsOverlay(
+                _inputManager,
+                EntityManager,
+                _eye,
+                this));
+        }
+        else
+            _overlayManager.RemoveOverlay<OfferItemIndicatorsOverlay>();
+    }
+}