riversong code showcase

Source/Riversong/Game/CommonServices/Entities/EntityCollectionExtensions.cs

@@ -0,0 +1,23 @@
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public static class EntityCollectionExtensions
+    {
+        public static T Get<T>(this IEntityCollection entityCollection, int id) where T : Entity
+        {
+            return (T)entityCollection.Get(id);
+        }
+
+        public static T CreateAndAdd<T>(this IEntityCollection entityCollection) where T : Entity, new()
+        {
+            var entity = entityCollection.Create<T>();
+            entityCollection.Add(entity);
+            return entity;
+        }
+
+        public static bool TryGet<T>(this IEntityCollection entityCollection, int id, out T entity) where T : Entity
+        {
+            entity = entityCollection.Get(id) as T;
+            return entity != null;
+        }
+    }
+}