use more robust sprite batch recovery logic (#283)

1 files changed, 22 insertions, 0 deletions

diff --git a/src/StardewModdingAPI/Framework/InternalExtensions.cs b/src/StardewModdingAPI/Framework/InternalExtensions.cs
index 5199c72d..cadf6598 100644
--- a/src/StardewModdingAPI/Framework/InternalExtensions.cs
+++ b/src/StardewModdingAPI/Framework/InternalExtensions.cs
@@ -2,6 +2,8 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
+using Microsoft.Xna.Framework.Graphics;
+using StardewValley;
 
 namespace StardewModdingAPI.Framework
 {
@@ -128,5 +130,25 @@ namespace StardewModdingAPI.Framework
                 deprecationManager.Warn(modName, nounPhrase, version, severity);
             }
         }
+
+        /****
+        ** Sprite batch
+        ****/
+        /// <summary>Get whether the sprite batch is between a begin and end pair.</summary>
+        /// <param name="spriteBatch">The sprite batch to check.</param>
+        /// <param name="reflection">The reflection helper with which to access private fields.</param>
+        public static bool IsOpen(this SpriteBatch spriteBatch, IReflectionHelper reflection)
+        {
+            // get field name
+            const string fieldName =
+#if SMAPI_FOR_WINDOWS
+            "inBeginEndPair";
+#else
+            "_beginCalled";
+#endif
+
+            // get result
+            return reflection.GetPrivateValue<bool>(Game1.spriteBatch, fieldName);
+        }
     }
 }