Mind ecs (#14412)

Content.Server/Mind/Components/MindContainerComponent.cs

@@ -0,0 +1,48 @@
+using System.Diagnostics.CodeAnalysis;
+using YamlDotNet.Core.Tokens;
+
+namespace Content.Server.Mind.Components
+{
+    /// <summary>
+    ///     Stores a <see cref="Server.Mind.Mind"/> on a mob.
+    /// </summary>
+    [RegisterComponent, Access(typeof(MindSystem))]
+    public sealed class MindContainerComponent : Component
+    {
+        /// <summary>
+        ///     The mind controlling this mob. Can be null.
+        /// </summary>
+        [ViewVariables]
+        [Access(typeof(MindSystem), Other = AccessPermissions.ReadWriteExecute)] // FIXME Friends
+        public Mind? Mind { get; set; }
+
+        /// <summary>
+        ///     True if we have a mind, false otherwise.
+        /// </summary>
+        [ViewVariables]
+        [MemberNotNullWhen(true, nameof(Mind))]
+        public bool HasMind => Mind != null;
+
+        /// <summary>
+        ///     Whether examining should show information about the mind or not.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("showExamineInfo")]
+        public bool ShowExamineInfo { get; set; }
+
+        /// <summary>
+        ///     Whether the mind will be put on a ghost after this component is shutdown.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("ghostOnShutdown")]
+        public bool GhostOnShutdown { get; set; } = true;
+    }
+
+    public sealed class MindRemovedMessage : EntityEventArgs
+    {
+    }
+
+    public sealed class MindAddedMessage : EntityEventArgs
+    {
+    }
+}