1 files changed, 97 insertions, 0 deletions
diff --git a/src/StardewModdingAPI.AssemblyRewriters/Rewriters/Crossplatform/SpriteBatch_MethodRewriter.cs b/src/StardewModdingAPI.AssemblyRewriters/Rewriters/Crossplatform/SpriteBatch_MethodRewriter.cs
new file mode 100644
index 00000000..252fe6d0
--- /dev/null
+++ b/src/StardewModdingAPI.AssemblyRewriters/Rewriters/Crossplatform/SpriteBatch_MethodRewriter.cs
@@ -0,0 +1,97 @@
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+using StardewModdingAPI.AssemblyRewriters.Framework;
+
+namespace StardewModdingAPI.AssemblyRewriters.Rewriters.Crossplatform
+{
+    /// <summary>Rewrites references to <see cref="SpriteBatch"/> to fix inconsistent method signatures between MonoGame and XNA.</summary>
+    /// <remarks>MonoGame has one <c>SpriteBatch.Begin</c> method with optional arguments, but XNA has multiple method overloads. Incompatible method references are rewritten to use <see cref="WrapperMethods"/>, which redirects all method signatures to the proper compiled MonoGame/XNA method.</remarks>
+    [SuppressMessage("ReSharper", "InconsistentNaming", Justification = "This class is not meant to be used directly, and is deliberately named to make it easier to know what it changes at a glance.")]
+    public class SpriteBatch_MethodRewriter : BaseMethodRewriter
+    {
+        /*********
+        ** Protected methods
+        *********/
+        /// <summary>Get whether a method reference should be rewritten.</summary>
+        /// <param name="instruction">The IL instruction.</param>
+        /// <param name="methodRef">The method reference.</param>
+        /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+        protected override bool ShouldRewrite(Instruction instruction, MethodReference methodRef, bool platformChanged)
+        {
+            return platformChanged
+                && methodRef.DeclaringType.FullName == typeof(SpriteBatch).FullName
+                && this.HasMatchingSignature(typeof(SpriteBatch_MethodRewriter.WrapperMethods), methodRef);
+        }
+
+        /// <summary>Rewrite a method for compatibility.</summary>
+        /// <param name="module">The module being rewritten.</param>
+        /// <param name="cil">The CIL rewriter.</param>
+        /// <param name="instruction">The instruction which calls the method.</param>
+        /// <param name="methodRef">The method reference invoked by the <paramref name="instruction"/>.</param>
+        /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+        protected override void Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, MethodReference methodRef, PlatformAssemblyMap assemblyMap)
+        {
+            methodRef.DeclaringType = module.Import(typeof(SpriteBatch_MethodRewriter.WrapperMethods));
+        }
+
+
+        /*********
+        ** Wrapper methods
+        *********/
+        /// <summary>Wraps <see cref="SpriteBatch"/> methods that are incompatible when converting compiled code between MonoGame and XNA.</summary>
+        public class WrapperMethods : SpriteBatch
+        {
+            /*********
+            ** Public methods
+            *********/
+            /// <summary>Construct an instance.</summary>
+            public WrapperMethods(GraphicsDevice graphicsDevice) : base(graphicsDevice) { }
+
+
+            /****
+            ** MonoGame signatures
+            ****/
+            [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Linux/Mac.")]
+            public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState, Effect effect, Matrix? matrix)
+            {
+                base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState, effect, matrix ?? Matrix.Identity);
+            }
+
+            /****
+            ** XNA signatures
+            ****/
+            [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+            public new void Begin()
+            {
+                base.Begin();
+            }
+
+            [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+            public new void Begin(SpriteSortMode sortMode, BlendState blendState)
+            {
+                base.Begin(sortMode, blendState);
+            }
+
+            [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+            public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState)
+            {
+                base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState);
+            }
+
+            [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+            public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState, Effect effect)
+            {
+                base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState, effect);
+            }
+
+            [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+            public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState, Effect effect, Matrix transformMatrix)
+            {
+                base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState, effect, transformMatrix);
+            }
+        }
+    }
+}
+\ No newline at end of file