Add QueueIntent to execute different intents in queue

Author: ApmeM

BrainAI/AI/UtilityAI/Intents/QueueIntent.cs

@@ -0,0 +1,47 @@
+using System.Collections.Generic;
+
+namespace BrainAI.AI.UtilityAI
+{
+    public class QueueIntent<T> : IIntent<T>
+    {
+        private readonly Queue<IIntent<T>> intents;
+        private IIntent<T> currentIntent;
+
+        public QueueIntent(params IIntent<T>[] intents)
+        {
+            this.intents = new Queue<IIntent<T>>(intents);
+        }
+
+        public void Enter(T context)
+        {
+            currentIntent?.Enter(context);
+        }
+
+        public bool Execute(T context)
+        {
+            if (currentIntent == null)
+            {
+                if (intents.Count == 0)
+                {
+                    return true;
+                }
+                currentIntent = intents.Dequeue();
+                currentIntent.Enter(context);
+            }
+
+            var deleted = currentIntent.Execute(context);
+            if (deleted)
+            {
+                currentIntent.Exit(context);
+                currentIntent = null;
+            }
+
+            return false;
+        }
+
+        public void Exit(T context)
+        {
+            currentIntent?.Exit(context);
+        }
+    }
+}