Removed own memberwise cast function, and replaced with one by jpmikkers. This needs converting to a recursion-less version and having the loop issue I think it has fixed

StardewModdingAPI/API/Game.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.API
+{
+    class Game
+    {
+
+    }
+}

StardewModdingAPI/Constants.cs

@@ -20,6 +20,11 @@ namespace StardewModdingAPI
         /// </summary>
         public static string ExecutionPath => Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
 
+        /// <summary>
+        /// Execution path to execute the code.
+        /// </summary>
+        public static string StardewExePath => Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + "\\Stardew Valley.exe";
+
         /// <summary>
         /// Title for the API console
         /// </summary>

StardewModdingAPI/Events/FarmAnimal.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.Events
+{
+    public class FarmAnimal
+    {
+        public void eatGrass_OnEnter()
+        {
+
+        }
+    }
+}

StardewModdingAPI/Events/Game.cs

@@ -17,7 +17,7 @@ namespace StardewModdingAPI.Events
         {
             GameLoaded.Invoke(null, EventArgs.Empty);
         }
-
+        
         public static void InvokeInitialize()
         {
             try
@@ -46,6 +46,8 @@ namespace StardewModdingAPI.Events
         {
             try
             {
+                Program.IsGameReferenceDirty = true;
+                var test = Program.gamePtr;
                 UpdateTick.Invoke(null, EventArgs.Empty);
             }
             catch (Exception ex)

StardewModdingAPI/ExtensionMethods/Array.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.ExtensionMethods
+{
+    public static class ArrayExtensions
+    {
+        public static void ForEach(this Array array, Action<Array, int[]> action)
+        {
+            if (array.LongLength == 0) return;
+            ArrayTraverse walker = new ArrayTraverse(array);
+            do action(array, walker.Position);
+            while (walker.Step());
+        }
+
+        //public static void ForEach(Array array, Action<Array, int[]> action)
+        //{
+        //    if (array.LongLength == 0) return;
+        //    ArrayTraverse walker = new ArrayTraverse(array);
+        //    do action(array, walker.Position);
+        //    while (walker.Step());
+        //}
+    }
+
+    internal class ArrayTraverse
+    {
+        public int[] Position;
+        private int[] maxLengths;
+
+        public ArrayTraverse(Array array)
+        {
+            maxLengths = new int[array.Rank];
+            for (int i = 0; i < array.Rank; ++i)
+            {
+                maxLengths[i] = array.GetLength(i) - 1;
+            }
+            Position = new int[array.Rank];
+        }
+
+        public bool Step()
+        {
+            for (int i = 0; i < Position.Length; ++i)
+            {
+                if (Position[i] < maxLengths[i])
+                {
+                    Position[i]++;
+                    for (int j = 0; j < i; j++)
+                    {
+                        Position[j] = 0;
+                    }
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+}

StardewModdingAPI/ExtensionMethods/Object.cs

@@ -0,0 +1,160 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace StardewModdingAPI.ExtensionMethods
+{
+    //From https://github.com/jpmikkers/net-object-deep-copy/blob/master/ObjectExtensions.cs
+    public static class ObjectExtensions
+    {
+        public static T Copy<T>(this object original)
+        {
+            return (T)new DeepCopyContext().InternalCopy(original, true);
+        }
+
+        private class DeepCopyContext
+        {
+            private static readonly Func<object, object> CloneMethod;
+            private readonly Dictionary<Object, Object> m_Visited;
+            private readonly Dictionary<Type, FieldInfo[]> m_NonShallowFieldCache;
+
+            static DeepCopyContext()
+            {
+                MethodInfo cloneMethod = typeof(Object).GetMethod("MemberwiseClone", BindingFlags.NonPublic | BindingFlags.Instance);
+                var p1 = Expression.Parameter(typeof(object));
+                var body = Expression.Call(p1, cloneMethod);
+                CloneMethod = Expression.Lambda<Func<object, object>>(body, p1).Compile();
+                //Console.WriteLine("typeof(object) contains {0} nonshallow fields", NonShallowFields(typeof(object)).Count());
+            }
+
+            public DeepCopyContext()
+            {
+                m_Visited = new Dictionary<object, object>(new ReferenceEqualityComparer());
+                m_NonShallowFieldCache = new Dictionary<Type, FieldInfo[]>();
+            }
+
+            private static bool IsPrimitive(Type type)
+            {
+                if (type.IsValueType && type.IsPrimitive) return true;
+                if (type == typeof(String)) return true;
+                if (type == typeof(Decimal)) return true;
+                if (type == typeof(DateTime)) return true;
+                return false;
+            }
+
+            public Object InternalCopy(Object originalObject, bool includeInObjectGraph)
+            {
+                if (originalObject == null) return null;
+                var typeToReflect = originalObject.GetType();
+                if (IsPrimitive(typeToReflect)) return originalObject;
+
+                if (typeof(XElement).IsAssignableFrom(typeToReflect)) return new XElement(originalObject as XElement);
+                if (typeof(Delegate).IsAssignableFrom(typeToReflect)) return null;
+
+                if (includeInObjectGraph)
+                {
+                    object result;
+                    if (m_Visited.TryGetValue(originalObject, out result)) return result;
+                }
+
+                var cloneObject = CloneMethod(originalObject);
+
+                if (includeInObjectGraph)
+                {
+                    m_Visited.Add(originalObject, cloneObject);
+                }
+
+                if (typeToReflect.IsArray)
+                {
+                    var arrayElementType = typeToReflect.GetElementType();
+
+                    if (IsPrimitive(arrayElementType))
+                    {
+                        // for an array of primitives, do nothing. The shallow clone is enough.
+                    }
+                    else if (arrayElementType.IsValueType)
+                    {
+                        // if its an array of structs, there's no need to check and add the individual elements to 'visited', because in .NET it's impossible to create
+                        // references to individual array elements.
+                        Array clonedArray = (Array)cloneObject;
+                        clonedArray.ForEach((array, indices) => array.SetValue(InternalCopy(clonedArray.GetValue(indices), false), indices));
+                    }
+                    else
+                    {
+                        // it's an array of ref types
+                        Array clonedArray = (Array)cloneObject;
+                        clonedArray.ForEach((array, indices) => array.SetValue(InternalCopy(clonedArray.GetValue(indices), true), indices));
+                    }
+                }
+                else
+                {
+                    foreach (var fieldInfo in CachedNonShallowFields(typeToReflect))
+                    {
+                        var originalFieldValue = fieldInfo.GetValue(originalObject);
+                        // a valuetype field can never have a reference pointing to it, so don't check the object graph in that case
+
+                        Log.Error("Replace this with a recurse-less version");
+                        var clonedFieldValue = InternalCopy(originalFieldValue, !fieldInfo.FieldType.IsValueType);
+                        fieldInfo.SetValue(cloneObject, clonedFieldValue);
+                    }
+                }
+
+                return cloneObject;
+            }
+
+            private FieldInfo[] CachedNonShallowFields(Type typeToReflect)
+            {
+                FieldInfo[] result;
+
+                if (!m_NonShallowFieldCache.TryGetValue(typeToReflect, out result))
+                {
+                    result = NonShallowFields(typeToReflect).ToArray();
+                    m_NonShallowFieldCache[typeToReflect] = result;
+                }
+
+                return result;
+            }
+
+            /// <summary>
+            /// From the given type hierarchy (i.e. including all base types), return all fields that should be deep-copied
+            /// </summary>
+            /// <param name="typeToReflect"></param>
+            /// <returns></returns>
+            private static IEnumerable<FieldInfo> NonShallowFields(Type typeToReflect)
+            {
+                while (typeToReflect != typeof(object))
+                {
+                    foreach (var fieldInfo in typeToReflect.GetFields(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.DeclaredOnly))
+                    {
+                        if (IsPrimitive(fieldInfo.FieldType)) continue; // this is 5% faster than a where clause..
+                        yield return fieldInfo;
+                    }
+                    typeToReflect = typeToReflect.BaseType;
+                }
+            }
+        }
+    }
+
+    public class ReferenceEqualityComparer : EqualityComparer<Object>
+    {
+        public override bool Equals(object x, object y)
+        {
+            return ReferenceEquals(x, y);
+        }
+
+        public override int GetHashCode(object obj)
+        {
+            if (obj == null) return 0;
+            // The RuntimeHelpers.GetHashCode method always calls the Object.GetHashCode method non-virtually, 
+            // even if the object's type has overridden the Object.GetHashCode method.
+            return RuntimeHelpers.GetHashCode(obj);
+        }
+    }
+    
+}

StardewModdingAPI/Helpers/CecilContext.cs

@@ -0,0 +1,163 @@
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.Helpers
+{
+    public enum CecilContextType
+    {
+        SMAPI,
+        Stardew
+    }
+    public class CecilContext
+    {
+        public CecilContextType ContextType { get; private set;}
+
+        private AssemblyDefinition _assemblyDefinition { get; set; }
+        private bool _isMemoryStreamDirty { get; set; }
+        
+        private MemoryStream _modifiedAssembly;
+        public MemoryStream ModifiedAssembly
+        {
+            get
+            {
+                if(_modifiedAssembly == null)
+                {
+                    _modifiedAssembly = new MemoryStream();
+                    _assemblyDefinition.Write(_modifiedAssembly);
+                }
+                else
+                {
+                    if(_isMemoryStreamDirty)
+                    {
+                        _modifiedAssembly.Dispose();
+                        _modifiedAssembly = new MemoryStream();
+                        _assemblyDefinition.Write(_modifiedAssembly);
+                    }
+                }
+                return _modifiedAssembly;
+            }
+        }
+        
+        public CecilContext(CecilContextType contextType)
+        {
+            ContextType = contextType;
+            if (ContextType == CecilContextType.SMAPI)
+                _assemblyDefinition = AssemblyDefinition.ReadAssembly(Assembly.GetExecutingAssembly().Location);
+            else
+                _assemblyDefinition = AssemblyDefinition.ReadAssembly(Constants.StardewExePath);
+        }
+        
+        public ILProcessor GetMethodILProcessor(string type, string method)
+        {
+            if (_assemblyDefinition == null)
+                throw new Exception("ERROR Assembly not properly read. Cannot parse");
+
+            if (string.IsNullOrWhiteSpace(type) || string.IsNullOrWhiteSpace(method))
+                throw new ArgumentNullException("Both type and method must be set");
+
+            Mono.Cecil.Cil.ILProcessor ilProcessor = null;
+            TypeDefinition typeDef = GetTypeDefinition(type);
+            if (typeDef != null)
+            {
+                MethodDefinition methodDef = typeDef.Methods.FirstOrDefault(m => m.Name == method);
+                if (methodDef != null)
+                {
+                    ilProcessor = methodDef.Body.GetILProcessor();
+                }
+            }
+
+            return ilProcessor;
+        }
+
+        public TypeDefinition GetTypeDefinition(string type)
+        {
+            if (_assemblyDefinition == null)
+                throw new Exception("ERROR Assembly not properly read. Cannot parse");
+
+            if (string.IsNullOrWhiteSpace(type))
+                throw new ArgumentNullException("Both type and method must be set");
+
+            TypeDefinition typeDef = _assemblyDefinition.MainModule.Types.FirstOrDefault(n => n.FullName == type);
+            return typeDef;
+        }
+
+        public MethodDefinition GetMethodDefinition(string type, string method)
+        {
+            MethodDefinition methodDef = null;
+            TypeDefinition typeDef = GetTypeDefinition(type);
+
+            if (typeDef != null)
+            {
+                methodDef = typeDef.Methods.FirstOrDefault(m => m.Name == method);                
+            }
+
+            return methodDef;
+        }
+
+        public ConstructorInfo GetSMAPITypeContructor(string type)
+        {
+            if (_assemblyDefinition == null)
+                throw new Exception("ERROR Assembly not properly read. Cannot parse");
+
+            if (ContextType != CecilContextType.SMAPI)
+                throw new Exception("GetSMAPIMethodReference can only be called on the SMAPI context");
+
+            ConstructorInfo methodInfo = null;
+
+            var reflectionType = Assembly.GetExecutingAssembly().GetType(type);
+            if (reflectionType != null)
+            {
+                methodInfo = reflectionType.GetConstructor(Type.EmptyTypes);
+            }
+
+            return methodInfo;
+        }
+
+        public MethodInfo GetSMAPIMethodReference(string type, string method)
+        {
+            if (_assemblyDefinition == null)
+                throw new Exception("ERROR Assembly not properly read. Cannot parse");
+
+            if (ContextType != CecilContextType.SMAPI)
+                throw new Exception("GetSMAPIMethodReference can only be called on the SMAPI context");
+
+            MethodInfo methodInfo = null;
+
+            var reflectionType = Assembly.GetExecutingAssembly().GetType(type);
+            if (reflectionType != null)
+            {
+                methodInfo = reflectionType.GetMethod(method);
+            }
+
+            return methodInfo;
+        }
+
+        public MethodReference ImportSMAPIMethodInStardew(CecilContext destinationContext, MethodBase method)
+        {
+            if (_assemblyDefinition == null)
+                throw new Exception("ERROR Assembly not properly read. Cannot parse");
+
+            if (ContextType != CecilContextType.SMAPI)
+                throw new Exception("ImportSmapiMethodInStardew can only be called on the Stardew context");
+
+            MethodReference reference = null;
+            if (method != null)
+            {                
+                reference = destinationContext._assemblyDefinition.MainModule.Import(method);
+            }
+            return reference;
+        }
+
+        internal void WriteAssembly(string file)
+        {
+            _assemblyDefinition.Write(file);
+        }
+    }
+}

StardewModdingAPI/Helpers/CecilHelper.cs

@@ -0,0 +1,97 @@
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+using Mono.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.Helpers
+{
+    public static class CecilHelper
+    {
+        //System.Void StardewValley.Game1::.ctor()
+        
+        private static void InjectMethod(ILProcessor ilProcessor, Instruction target, MethodReference method)
+        {
+            Instruction callEnterInstruction = ilProcessor.Create(OpCodes.Call, method);
+
+            if(method.HasThis)
+            {
+                Instruction loadObjInstruction = ilProcessor.Create(OpCodes.Ldarg_0);
+                ilProcessor.InsertBefore(target, loadObjInstruction);
+            }
+
+            if (method.HasParameters)
+            {
+                Instruction loadObjInstruction = ilProcessor.Create(OpCodes.Ldarg_0);
+                ilProcessor.InsertBefore(target, loadObjInstruction);
+                ilProcessor.InsertAfter(loadObjInstruction, callEnterInstruction);
+            }
+            else
+            {
+                ilProcessor.InsertBefore(target, callEnterInstruction);
+            }
+            
+        }
+
+        private static void InjectMethod(ILProcessor ilProcessor, IEnumerable<Instruction> targets, MethodReference method)
+        {
+            foreach(var target in targets.ToList())
+            {
+                InjectMethod(ilProcessor, target, method);
+            }
+        }
+
+        private static List<Instruction> GetMatchingInstructions(Collection<Instruction> instructions, OpCode opcode, object @object)
+        {
+            return instructions.Where(n => n.OpCode == opcode && n.Operand == @object).ToList();            
+        }
+
+        public static void RedirectConstructor(CecilContext stardewContext, CecilContext smapiContext,
+            string typeToAlter, string methodToAlter,
+            string injecteeType, string injecteeMethod,
+            string injectedType, string injectedMethod)
+        {
+            var ilProcessor = stardewContext.GetMethodILProcessor(typeToAlter, methodToAlter);
+            var methodDefinition = stardewContext.GetMethodDefinition(injecteeType, injecteeMethod);
+
+            var methodInfo = smapiContext.GetSMAPITypeContructor(injectedType);
+            var reference = smapiContext.ImportSMAPIMethodInStardew(stardewContext, methodInfo);
+
+            var instructionsToAlter = GetMatchingInstructions(ilProcessor.Body.Instructions, OpCodes.Newobj, methodDefinition);
+
+            var newInstruction = ilProcessor.Create(OpCodes.Newobj, reference);
+            foreach(var instruction in instructionsToAlter)
+            {
+                ilProcessor.Replace(instruction, newInstruction);
+            }
+        }
+
+       // public void ReplaceInstruction(ILProcessor processor, OpCode opcode, string oldOperand, string newOperand)
+        //{
+            //var instructions = processor.Body.Instructions.Where(i => i.OpCode == opcode && i.Operand == oldOperand);
+           // processor.Create()
+        //}
+
+        public static void InjectEntryMethod(CecilContext stardewContext, CecilContext smapiContext, string injecteeType, string injecteeMethod, 
+            string injectedType, string injectedMethod)
+        {
+            var methodInfo = smapiContext.GetSMAPIMethodReference(injectedType, injectedMethod);
+            var reference = smapiContext.ImportSMAPIMethodInStardew(stardewContext, methodInfo);
+            var ilProcessor = stardewContext.GetMethodILProcessor(injecteeType, injecteeMethod);
+            InjectMethod(ilProcessor, ilProcessor.Body.Instructions.First(), reference);
+        }
+
+        public static void InjectExitMethod(CecilContext stardewContext, CecilContext smapiContext, string injecteeType, string injecteeMethod,
+            string injectedType, string injectedMethod)
+        {
+            var methodInfo = smapiContext.GetSMAPIMethodReference(injectedType, injectedMethod);
+            var reference = smapiContext.ImportSMAPIMethodInStardew(stardewContext, methodInfo);
+            var ilProcessor = stardewContext.GetMethodILProcessor(injecteeType, injecteeMethod);           
+            InjectMethod(ilProcessor, ilProcessor.Body.Instructions.Where(i => i.OpCode == OpCodes.Ret), reference);
+        }
+    }
+}

StardewModdingAPI/Helpers/ReflectionHelper.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.Helpers
+{
+    public static class ReflectionHelper
+    {
+    }
+}

StardewModdingAPI/Helpers/StardewAssembly.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StardewModdingAPI.Helpers
+{
+    public static class StardewAssembly
+    {
+        private static Assembly ModifiedGameAssembly { get; set; }
+        private static CecilContext StardewContext { get; set; }
+        private static CecilContext SmapiContext { get; set; }
+
+        public static void ModifyStardewAssembly()
+        {
+            StardewContext = new CecilContext(CecilContextType.Stardew);
+            SmapiContext = new CecilContext(CecilContextType.SMAPI);
+
+            CecilHelper.InjectEntryMethod(StardewContext, SmapiContext, "StardewValley.Game1", ".ctor", "StardewModdingAPI.Program", "Test");
+            CecilHelper.InjectExitMethod(StardewContext, SmapiContext, "StardewValley.Game1", "Initialize", "StardewModdingAPI.Events.GameEvents", "InvokeInitialize");
+            CecilHelper.InjectExitMethod(StardewContext, SmapiContext, "StardewValley.Game1", "LoadContent", "StardewModdingAPI.Events.GameEvents", "InvokeLoadContent");
+            CecilHelper.InjectExitMethod(StardewContext, SmapiContext, "StardewValley.Game1", "Update", "StardewModdingAPI.Events.GameEvents", "InvokeUpdateTick");
+            CecilHelper.InjectExitMethod(StardewContext, SmapiContext, "StardewValley.Game1", "Draw", "StardewModdingAPI.Events.GraphicsEvents", "InvokeDrawTick");
+        }
+
+        public static void LoadStardewAssembly()
+        {
+            ModifiedGameAssembly = Assembly.Load(StardewContext.ModifiedAssembly.GetBuffer());
+            //ModifiedGameAssembly = Assembly.UnsafeLoadFrom(Constants.ExecutionPath + "\\Stardew Valley.exe");
+        }
+
+        internal static void Launch()
+        {
+            ModifiedGameAssembly.EntryPoint.Invoke(null, new object[] { new string[] { } });
+        }
+
+        internal static void WriteModifiedExe()
+        {
+            StardewContext.WriteAssembly("StardewValley-Modified.exe");
+        }
+    }
+}

StardewModdingAPI/Inheritance/SGame.cs

@@ -179,42 +179,9 @@ namespace StardewModdingAPI.Inheritance
         public Farmer CurrentFarmer { get { return player; } }
 
         public SGame()
-        {
-            instance = this;
-
-#if DEBUG
-            SaveGame.serializer = new XmlSerializer(typeof (SaveGame), new Type[28]
-                {
-                    typeof (Tool),
-                    typeof (GameLocation),
-                    typeof (Crow),
-                    typeof (Duggy),
-                    typeof (Bug),
-                    typeof (BigSlime),
-                    typeof (Fireball),
-                    typeof (Ghost),
-                    typeof (Child),
-                    typeof (Pet),
-                    typeof (Dog),
-                    typeof (StardewValley.Characters.Cat),
-                    typeof (Horse),
-                    typeof (GreenSlime),
-                    typeof (LavaCrab),
-                    typeof (RockCrab),
-                    typeof (ShadowGuy),
-                    typeof (SkeletonMage),
-                    typeof (SquidKid),
-                    typeof (Grub),
-                    typeof (Fly),
-                    typeof (DustSpirit),
-                    typeof (Quest),
-                    typeof (MetalHead),
-                    typeof (ShadowGirl),
-                    typeof (Monster),
-                    typeof (TerrainFeature),
-                    typeof (SObject)
-                });
-#endif
+        {            
+            instance = this;            
+            graphics.GraphicsProfile = GraphicsProfile.HiDef;
         }
 
         protected override void Initialize()

StardewModdingAPI/Log.cs

@@ -78,6 +78,16 @@ namespace StardewModdingAPI
         /// <param name="message"></param>
         /// <param name="values"></param>
         public static void Comment(object message, params object[] values)
+        {
+            Log.PrintLog(message?.ToString(), false, values);
+        }
+
+        /// <summary>
+        /// Additional comment to display to console and logging.
+        /// </summary>
+        /// <param name="message"></param>
+        /// <param name="values"></param>
+        public static void Warning(object message, params object[] values)
         {
             Console.ForegroundColor = ConsoleColor.Yellow;
             Log.PrintLog(message?.ToString(), false, values);

StardewModdingAPI/Program.cs

@@ -1,6 +1,10 @@
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
 using StardewModdingAPI.Events;
+using StardewModdingAPI.ExtensionMethods;
+using StardewModdingAPI.Helpers;
 using StardewModdingAPI.Inheritance;
 using StardewModdingAPI.Inheritance.Menus;
 using StardewValley;
@@ -23,19 +27,31 @@ namespace StardewModdingAPI
 
         public static Texture2D DebugPixel { get; private set; }
 
-        public static SGame gamePtr;
-        public static bool ready;
+        public static bool IsGameReferenceDirty { get; set; }
+
+        public static object gameInst;
 
-        public static Assembly StardewAssembly;
-        public static Type StardewProgramType;
-        public static FieldInfo StardewGameInfo;
+        public static Game1 _gamePtr;
+        public static Game1 gamePtr
+        {
+            get
+            {
+                if(IsGameReferenceDirty && gameInst != null)
+                {
+                    _gamePtr = gameInst.Copy<Game1>();
+                }
+                return _gamePtr;
+            }
+        }
+
+        public static bool ready;
+
         public static Form StardewForm;
 
         public static Thread gameThread;
-        public static Thread consoleInputThread;
-
-        public static bool StardewInjectorLoaded { get; private set; }
-        public static Mod StardewInjectorMod { get; private set; }
+        public static Thread consoleInputThread;
+
+        
 
         /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
@@ -49,9 +65,8 @@ namespace StardewModdingAPI
             {
                 ConfigureUI();
                 ConfigurePaths();
-                ConfigureInjector();
+                ConfigureMethodInjection();
                 ConfigureSDV();
-
                 GameRunInvoker();
             }
             catch (Exception e)
@@ -63,7 +78,26 @@ namespace StardewModdingAPI
             StardewModdingAPI.Log.Comment("The API will now terminate. Press any key to continue...");
             Console.ReadKey();
         }
-
+    
+        /// <summary>
+        /// Configures Mono.Cecil injections
+        /// </summary>
+        private static void ConfigureMethodInjection()
+        {
+            StardewAssembly.ModifyStardewAssembly();
+
+#if DEBUG
+            StardewAssembly.WriteModifiedExe();
+#endif
+        }
+
+
+        public static void Test(object instance)
+        {
+            gameInst = instance;
+            IsGameReferenceDirty = true;
+        }
+
         /// <summary>
         /// Set up the console properties
         /// </summary>
@@ -86,6 +120,7 @@ namespace StardewModdingAPI
             _modPaths = new List<string>();
             _modContentPaths = new List<string>();
 
+
             //TODO: Have an app.config and put the paths inside it so users can define locations to load mods from
             _modPaths.Add(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "StardewValley", "Mods"));
             _modPaths.Add(Path.Combine(Constants.ExecutionPath, "Mods"));
@@ -101,100 +136,39 @@ namespace StardewModdingAPI
 
             if (!File.Exists(Constants.ExecutionPath + "\\Stardew Valley.exe"))
             {
-                throw new FileNotFoundException(string.Format("Could not found: {0}\\Stardew Valley.exe", Constants.ExecutionPath));
+                StardewModdingAPI.Log.Error("Replace this");
+                //throw new FileNotFoundException(string.Format("Could not found: {0}\\Stardew Valley.exe", Constants.ExecutionPath));
             }
         }
-
-        /// <summary>
-        /// Load the injector.
-        /// </summary>
-        /// <remarks>
-        /// This will load the injector before anything else if it sees it
-        /// It doesn't matter though
-        /// I'll leave it as a feature in case anyone in the community wants to tinker with it
-        /// All you need is a DLL that inherits from mod and is called StardewInjector.dll with an Entry() method
-        /// </remarks>
-        private static void ConfigureInjector()
-        {
-            foreach (string ModPath in _modPaths)
-            {
-                foreach (String s in Directory.GetFiles(ModPath, "StardewInjector.dll"))
-                {
-                    StardewModdingAPI.Log.Success(ConsoleColor.Green, "Found Stardew Injector DLL: " + s);
-                    try
-                    {
-                        Assembly mod = Assembly.UnsafeLoadFrom(s); //to combat internet-downloaded DLLs
-
-                        if (mod.DefinedTypes.Count(x => x.BaseType == typeof(Mod)) > 0)
-                        {
-                            StardewModdingAPI.Log.Success("Loading Injector DLL...");
-                            TypeInfo tar = mod.DefinedTypes.First(x => x.BaseType == typeof(Mod));
-                            Mod m = (Mod)mod.CreateInstance(tar.ToString());
-                            Console.WriteLine("LOADED: {0} by {1} - Version {2} | Description: {3}", m.Name, m.Authour, m.Version, m.Description);
-                            m.Entry(false);
-                            StardewInjectorLoaded = true;
-                            StardewInjectorMod = m;
-                        }
-                        else
-                        {
-                            StardewModdingAPI.Log.Error("Invalid Mod DLL");
-                        }
-                    }
-                    catch (Exception ex)
-                    {
-                        StardewModdingAPI.Log.Error("Failed to load mod '{0}'. Exception details:\n" + ex, s);
-                    }
-                }
-            }
-        }
-
+        
         /// <summary>
         /// Load Stardev Valley and control features
         /// </summary>
         private static void ConfigureSDV()
         {
-            StardewModdingAPI.Log.Info("Initializing SDV Assembly...");
-
-            // Load in the assembly - ignores security
-            StardewAssembly = Assembly.UnsafeLoadFrom(Constants.ExecutionPath + "\\Stardew Valley.exe");
-            StardewProgramType = StardewAssembly.GetType("StardewValley.Program", true);
-            StardewGameInfo = StardewProgramType.GetField("gamePtr");
+            StardewModdingAPI.Log.Info("Initializing SDV Assembly...");
+
+            // Load in the assembly - ignores security
+            StardewAssembly.LoadStardewAssembly();
+            StardewModdingAPI.Log.Comment("SDV Loaded Into Memory");
 
             // Change the game's version
             StardewModdingAPI.Log.Verbose("Injecting New SDV Version...");
             Game1.version += string.Format("-Z_MODDED | SMAPI {0}", Constants.VersionString);
-
-            // Create the thread for the game to run in.
-            gameThread = new Thread(RunGame);
-            StardewModdingAPI.Log.Info("Starting SDV...");
-            gameThread.Start();
 
-            // Wait for the game to load up
-            while (!ready) ;
-
-            //SDV is running
-            StardewModdingAPI.Log.Comment("SDV Loaded Into Memory");
+            // Create the thread for the game to run in.
+            Application.ThreadException += StardewModdingAPI.Log.Application_ThreadException;
+            Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
+            AppDomain.CurrentDomain.UnhandledException += StardewModdingAPI.Log.CurrentDomain_UnhandledException;
+                              
 
             //Create definition to listen for input
             StardewModdingAPI.Log.Verbose("Initializing Console Input Thread...");
             consoleInputThread = new Thread(ConsoleInputThread);
+            
+            Command.RegisterCommand("help", "Lists all commands | 'help <cmd>' returns command description").CommandFired += help_CommandFired;            
 
-            // The only command in the API (at least it should be, for now)
-            Command.RegisterCommand("help", "Lists all commands | 'help <cmd>' returns command description").CommandFired += help_CommandFired;
-            //Command.RegisterCommand("crash", "crashes sdv").CommandFired += delegate { Game1.player.draw(null); };
-
-            //Subscribe to events
-            Events.ControlEvents.KeyPressed += Events_KeyPressed;
-            Events.GameEvents.LoadContent += Events_LoadContent;
-            //Events.MenuChanged += Events_MenuChanged; //Idk right now
-
-            StardewModdingAPI.Log.Verbose("Applying Final SDV Tweaks...");
-            StardewInvoke(() =>
-            {
-                gamePtr.IsMouseVisible = false;
-                gamePtr.Window.Title = "Stardew Valley - Version " + Game1.version;
-                StardewForm.Resize += Events.GraphicsEvents.InvokeResize;
-            });
+            StardewAssembly.Launch(); 
         }
 
         /// <summary>
@@ -248,48 +222,6 @@ namespace StardewModdingAPI
 
         /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-        public static void RunGame()
-        {
-            Application.ThreadException += StardewModdingAPI.Log.Application_ThreadException;
-            Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
-            AppDomain.CurrentDomain.UnhandledException += StardewModdingAPI.Log.CurrentDomain_UnhandledException;
-
-            try
-            {
-                gamePtr = new SGame();
-                StardewModdingAPI.Log.Verbose("Patching SDV Graphics Profile...");
-                Game1.graphics.GraphicsProfile = GraphicsProfile.HiDef;
-                LoadMods();
-
-                StardewForm = Control.FromHandle(Program.gamePtr.Window.Handle).FindForm();
-                StardewForm.Closing += StardewForm_Closing;
-
-                ready = true;
-
-                StardewGameInfo.SetValue(StardewProgramType, gamePtr);
-                gamePtr.Run();
-
-                #region deprecated
-                if (false)
-                {
-                    //Nope, I can't get it to work. I depend on Game1 being an SGame, and can't cast a parent to a child
-                    //I'm leaving this here in case the community is interested
-                    //StardewInjectorMod.Entry(true);
-                    Type gt = StardewAssembly.GetType("StardewValley.Game1", true);
-                    gamePtr = (SGame)Activator.CreateInstance(gt);
-
-                    ready = true;
-
-                    StardewGameInfo.SetValue(StardewProgramType, gamePtr);
-                    gamePtr.Run();
-                }
-                #endregion
-            }
-            catch (Exception ex)
-            {
-                StardewModdingAPI.Log.Error("Game failed to start: " + ex);
-            }
-        }
 
         static void StardewForm_Closing(object sender, CancelEventArgs e)
         {
@@ -351,73 +283,7 @@ namespace StardewModdingAPI
                 Command.CallCommand(Console.ReadLine());
             }
         }
-
-        static void Events_LoadContent(object o, EventArgs e)
-        {
-            StardewModdingAPI.Log.Info("Initializing Debug Assets...");
-            DebugPixel = new Texture2D(Game1.graphics.GraphicsDevice, 1, 1);
-            DebugPixel.SetData(new Color[] { Color.White });
-
-#if DEBUG
-            StardewModdingAPI.Log.Verbose("REGISTERING BASE CUSTOM ITEM");
-            SObject so = new SObject();
-            so.Name = "Mario Block";
-            so.CategoryName = "SMAPI Test Mod";
-            so.Description = "It's a block from Mario!\nLoaded in realtime by SMAPI.";
-            so.Texture = Texture2D.FromStream(Game1.graphics.GraphicsDevice, new FileStream(_modContentPaths[0] + "\\Test.png", FileMode.Open));
-            so.IsPassable = true;
-            so.IsPlaceable = true;
-            StardewModdingAPI.Log.Verbose("REGISTERED WITH ID OF: " + SGame.RegisterModItem(so));
-
-            //StardewModdingAPI.Log.Verbose("REGISTERING SECOND CUSTOM ITEM");
-            //SObject so2 = new SObject();
-            //so2.Name = "Mario Painting";
-            //so2.CategoryName = "SMAPI Test Mod";
-            //so2.Description = "It's a painting of a creature from Mario!\nLoaded in realtime by SMAPI.";
-            //so2.Texture = Texture2D.FromStream(Game1.graphics.GraphicsDevice, new FileStream(_modContentPaths[0] + "\\PaintingTest.png", FileMode.Open));
-            //so2.IsPassable = true;
-            //so2.IsPlaceable = true;
-            //StardewModdingAPI.Log.Verbose("REGISTERED WITH ID OF: " + SGame.RegisterModItem(so2));
-
-            Command.CallCommand("load");
-#endif
-        }
-
-        static void Events_KeyPressed(object o, EventArgsKeyPressed e)
-        {
-
-        }
-
-        static void Events_MenuChanged(IClickableMenu newMenu)
-        {
-            StardewModdingAPI.Log.Verbose("NEW MENU: " + newMenu.GetType());
-            if (newMenu is GameMenu)
-            {
-                Game1.activeClickableMenu = SGameMenu.ConstructFromBaseClass(Game1.activeClickableMenu as GameMenu);
-            }
-        }
-
-
-        static void Events_LocationsChanged(List<GameLocation> newLocations)
-        {
-#if DEBUG
-            SGame.ModLocations = SGameLocation.ConstructFromBaseClasses(Game1.locations);
-#endif
-        }
-
-        static void Events_CurrentLocationChanged(GameLocation newLocation)
-        {
-            //SGame.CurrentLocation = null;
-            //System.Threading.Thread.Sleep(10);
-#if DEBUG
-            Console.WriteLine(newLocation.name);
-            SGame.CurrentLocation = SGame.LoadOrCreateSGameLocationFromName(newLocation.name);
-#endif
-            //Game1.currentLocation = SGame.CurrentLocation;
-            //Log.LogComment(((SGameLocation) newLocation).name);
-            //Log.LogComment("LOC CHANGED: " + SGame.currentLocation.name);
-        }
-
+    
         public static void StardewInvoke(Action a)
         {
             StardewForm.Invoke(a);

StardewModdingAPI/StardewModdingAPI.csproj

@@ -37,16 +37,16 @@
     <TargetFrameworkProfile />
   </PropertyGroup>
   <Choose>
-	<When Condition="'$(SteamInstallPath)' != ''">
-	  <PropertyGroup>
-		<SteamPath>$(SteamInstallPath)</SteamPath>
+    <When Condition="'$(SteamInstallPath)' != ''">
+      <PropertyGroup>
+        <SteamPath>$(SteamInstallPath)</SteamPath>
       </PropertyGroup>
-	</When>
-  <Otherwise>
-	<PropertyGroup>
-	  <SteamPath>..\..\..\..\Games\SteamLibrary</SteamPath>
-    </PropertyGroup>
-	</Otherwise>
+    </When>
+    <Otherwise>
+      <PropertyGroup>
+        <SteamPath>..\..\..\..\Games\SteamLibrary</SteamPath>
+      </PropertyGroup>
+    </Otherwise>
   </Choose>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>x86</PlatformTarget>
@@ -73,8 +73,7 @@
     <PlatformTarget>x86</PlatformTarget>
     <OutputPath>bin\x86\Debug\</OutputPath>
     <Prefer32Bit>false</Prefer32Bit>
-    <DefineConstants>
-    </DefineConstants>
+    <DefineConstants>DEBUG</DefineConstants>
     <UseVSHostingProcess>true</UseVSHostingProcess>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
@@ -90,9 +89,25 @@
     <Reference Include="Microsoft.Xna.Framework.Game, Version=4.0.0.0, Culture=neutral, PublicKeyToken=842cf8be1de50553, processorArchitecture=x86" />
     <Reference Include="Microsoft.Xna.Framework.Graphics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=842cf8be1de50553, processorArchitecture=x86" />
     <Reference Include="Microsoft.Xna.Framework.Xact, Version=4.0.0.0, Culture=neutral, PublicKeyToken=842cf8be1de50553, processorArchitecture=x86" />
-    <Reference Include="Stardew Valley, Version=1.0.5905.5747, Culture=neutral, processorArchitecture=x86">
+    <Reference Include="Mono.Cecil, Version=0.9.6.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756, processorArchitecture=MSIL">
+      <HintPath>..\packages\Mono.Cecil.0.9.6.1\lib\net45\Mono.Cecil.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Mono.Cecil.Mdb, Version=0.9.6.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756, processorArchitecture=MSIL">
+      <HintPath>..\packages\Mono.Cecil.0.9.6.1\lib\net45\Mono.Cecil.Mdb.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Mono.Cecil.Pdb, Version=0.9.6.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756, processorArchitecture=MSIL">
+      <HintPath>..\packages\Mono.Cecil.0.9.6.1\lib\net45\Mono.Cecil.Pdb.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Mono.Cecil.Rocks, Version=0.9.6.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756, processorArchitecture=MSIL">
+      <HintPath>..\packages\Mono.Cecil.0.9.6.1\lib\net45\Mono.Cecil.Rocks.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Stardew Valley, Version=1.0.5912.41135, Culture=neutral, processorArchitecture=x86">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>$(SteamPath)\steamapps\common\Stardew Valley\Stardew Valley.exe</HintPath>
+      <HintPath>..\..\..\..\Games\SteamLibrary\steamapps\common\Stardew Valley\Stardew Valley.exe</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
@@ -103,12 +118,12 @@
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
-    <Reference Include="xTile, Version=2.0.4.0, Culture=neutral, processorArchitecture=x86">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>$(SteamPath)\steamapps\common\Stardew Valley\xTile.dll</HintPath>
+    <Reference Include="xTile">
+      <HintPath>..\..\..\..\Games\SteamLibrary\steamapps\common\Stardew Valley\xTile.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="API\Game.cs" />
     <Compile Include="Command.cs" />
     <Compile Include="Constants.cs" />
     <Compile Include="Entities\SCharacter.cs" />
@@ -118,6 +133,7 @@
     <Compile Include="Entities\SPlayer.cs" />
     <Compile Include="Events\Controls.cs" />
     <Compile Include="Events\EventArgs.cs" />
+    <Compile Include="Events\FarmAnimal.cs" />
     <Compile Include="Events\Game.cs" />
     <Compile Include="Events\Graphics.cs" />
     <Compile Include="Events\Location.cs" />
@@ -125,7 +141,13 @@
     <Compile Include="Events\Mine.cs" />
     <Compile Include="Events\Player.cs" />
     <Compile Include="Events\Time.cs" />
+    <Compile Include="ExtensionMethods\Array.cs" />
+    <Compile Include="ExtensionMethods\Object.cs" />
     <Compile Include="Extensions.cs" />
+    <Compile Include="Helpers\CecilContext.cs" />
+    <Compile Include="Helpers\CecilHelper.cs" />
+    <Compile Include="Helpers\ReflectionHelper.cs" />
+    <Compile Include="Helpers\StardewAssembly.cs" />
     <Compile Include="Inheritance\ItemStackChange.cs" />
     <Compile Include="Inheritance\Menus\SBobberBar.cs" />
     <Compile Include="Inheritance\Menus\SGameMenu.cs" />
@@ -142,6 +164,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="App.config" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="icon.ico" />
@@ -159,6 +182,7 @@
       <Install>false</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PostBuildEvent>

StardewModdingAPI/packages.config

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Mono.Cecil" version="0.9.6.1" targetFramework="net45" />
+</packages>

TrainerMod/TrainerMod.csproj

@@ -34,16 +34,16 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <Choose>
-	<When Condition="'$(SteamInstallPath)' != ''">
-	  <PropertyGroup>
-		<SteamPath>$(SteamInstallPath)</SteamPath>
+    <When Condition="'$(SteamInstallPath)' != ''">
+      <PropertyGroup>
+        <SteamPath>$(SteamInstallPath)</SteamPath>
       </PropertyGroup>
-	</When>
-  <Otherwise>
-	<PropertyGroup>
-	  <SteamPath>..\..\..\..\Games\SteamLibrary</SteamPath>
-    </PropertyGroup>
-	</Otherwise>
+    </When>
+    <Otherwise>
+      <PropertyGroup>
+        <SteamPath>..\..\..\..\Games\SteamLibrary</SteamPath>
+      </PropertyGroup>
+    </Otherwise>
   </Choose>
   <ItemGroup>
     <Reference Include="Microsoft.Xna.Framework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=842cf8be1de50553, processorArchitecture=x86">
@@ -53,8 +53,7 @@
       <Private>False</Private>
     </Reference>
     <Reference Include="Stardew Valley">
-      <HintPath>$(SteamPath)\steamapps\common\Stardew Valley\Stardew Valley.exe</HintPath>
-      <Private>False</Private>
+      <HintPath>..\..\..\..\Games\SteamLibrary\steamapps\common\Stardew Valley\Stardew Valley.exe</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
@@ -65,8 +64,7 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
     <Reference Include="xTile">
-      <HintPath>$(SteamPath)\steamapps\common\Stardew Valley\xTile.dll</HintPath>
-      <Private>False</Private>
+      <HintPath>..\..\..\..\Games\SteamLibrary\steamapps\common\Stardew Valley\xTile.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>