Fix pickup verb. (#165)

Content.Server/GameObjects/Components/GUI/ServerHandsComponent.cs

@@ -75,6 +75,18 @@ namespace Content.Server.GameObjects
             }
         }
 
+        public bool IsHolding(IEntity entity)
+        {
+            foreach (var slot in hands.Values)
+            {
+                if (slot.ContainedEntity == entity)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+
         /// <inheritdoc />
         public void RemoveHandEntity(IEntity entity)
         {

Content.Server/GameObjects/Components/Items/Storage/ItemComponent.cs

@@ -38,17 +38,25 @@ namespace Content.Server.GameObjects
         {
             protected override string GetText(IEntity user, ItemComponent component)
             {
+                if (user.TryGetComponent(out HandsComponent hands) && hands.IsHolding(component.Owner))
+                {
+                    return "Pick Up (Already Holding)";
+                }
                 return "Pick Up";
             }
 
             protected override bool IsDisabled(IEntity user, ItemComponent component)
             {
+                if (user.TryGetComponent(out HandsComponent hands) && hands.IsHolding(component.Owner))
+                {
+                    return true;
+                }
                 return false;
             }
 
             protected override void Activate(IEntity user, ItemComponent component)
             {
-                if (user.TryGetComponent(out HandsComponent hands))
+                if (user.TryGetComponent(out HandsComponent hands) && !hands.IsHolding(component.Owner))
                 {
                     hands.PutInHand(component);
                 }