Implemented event priority attribute

2 files changed, 58 insertions, 0 deletions

diff --git a/src/SMAPI/Events/EventPriority.cs b/src/SMAPI/Events/EventPriority.cs
new file mode 100644
index 00000000..17f5fbb7
--- /dev/null
+++ b/src/SMAPI/Events/EventPriority.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.Events
+{
+    /// <summary>
+    /// Event priority for method handlers.
+    /// </summary>
+    public enum EventPriority
+    {
+        /// <summary>
+        /// Low priority.
+        /// </summary>
+        Low = 3,
+
+        /// <summary>
+        /// Normal priority. This is the default.
+        /// </summary>
+        Normal = 2,
+
+        /// <summary>
+        /// High priority.
+        /// </summary>
+        High = 1,
+    }
+}
diff --git a/src/SMAPI/Events/EventPriorityAttribute.cs b/src/SMAPI/Events/EventPriorityAttribute.cs
new file mode 100644
index 00000000..c5683931
--- /dev/null
+++ b/src/SMAPI/Events/EventPriorityAttribute.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.Events
+{
+    /// <summary>
+    /// An attribute for controlling event priority of an event handler.
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Method)]
+    public class EventPriorityAttribute : System.Attribute
+    {
+        /// <summary>
+        /// The priority for the method marked by this attribute.
+        /// </summary>
+        public EventPriority Priority { get; }
+
+        /// <summary>
+        /// Constructor.
+        /// </summary>
+        /// <param name="priority">The priority for method marked by this attribute.</param>
+        public EventPriorityAttribute( EventPriority priority )
+        {
+            this.Priority = priority;
+        }
+    }
+}