Re-organize all projects (#4166)

Content.Shared/MobState/State/IMobState.cs

@@ -0,0 +1,42 @@
+#nullable enable
+using Content.Shared.ActionBlocker;
+using Robust.Shared.GameObjects;
+
+namespace Content.Shared.MobState.State
+{
+    /// <summary>
+    ///     Defines the blocking effects of an associated <see cref="DamageState"/>
+    ///     (i.e. Normal, Critical, Dead) and what effects to apply upon entering or
+    ///     exiting the state.
+    /// </summary>
+    public interface IMobState : IActionBlocker
+    {
+        bool IsAlive();
+
+        bool IsCritical();
+
+        bool IsDead();
+
+        /// <summary>
+        ///     Checks if the mob is in a critical or dead state.
+        ///     See <see cref="IsCritical"/> and <see cref="IsDead"/>.
+        /// </summary>
+        /// <returns>true if it is, false otherwise.</returns>
+        bool IsIncapacitated();
+
+        /// <summary>
+        ///     Called when this state is entered.
+        /// </summary>
+        void EnterState(IEntity entity);
+
+        /// <summary>
+        ///     Called when this state is left for a different state.
+        /// </summary>
+        void ExitState(IEntity entity);
+
+        /// <summary>
+        ///     Called when this state is updated.
+        /// </summary>
+        void UpdateState(IEntity entity, int threshold);
+    }
+}