Add Harmony and GC internal call PoC

TestMod/TestMod.csproj

@@ -4,6 +4,10 @@
     <TargetFramework>net45</TargetFramework>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Lib.Harmony" Version="1.2.0.1" />
+  </ItemGroup>
+
   <ItemGroup>
     <Reference Include="CommandLine">
       <HintPath>..\..\..\..\..\..\..\Program Files (x86)\Steam\steamapps\common\Gamecraft\RobocraftX_Data\Managed\CommandLine.dll</HintPath>

TestMod/TestPatch.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Reflection;
+using RobocraftX.GUI.CommandLine;
+using Harmony;
+using UnityEngine;
+
+namespace TestMod
+{
+    [HarmonyPatch]
+    class TestPatch
+    {
+        static void Prefix(string name, Action func, string description = "")
+        {
+            Debug.Log("Registering "+name);
+            //uREPL.Log.Output("This is an unhelpful message");
+        }
+
+        [HarmonyTargetMethod]
+        static MethodBase HTargetMethod(HarmonyInstance instance)
+        {
+            Type CLUtility = AccessTools.TypeByName("RobocraftX.GUI.CommandLine.CommandLineUtility");
+            MethodInfo[] methods = CLUtility.GetMethods();
+            foreach (MethodInfo m in methods)
+            {
+                if (m.Name == "Register") {
+                    return m;
+                }
+            }
+            Debug.Log("Defaulting to "+methods[0].Name);
+            return methods[0];
+        }
+    }
+}

TestMod/TestPlugin.cs

@@ -2,11 +2,15 @@
 using IllusionPlugin;
 using UnityEngine;
 using uREPL;
+using Harmony;
+using System.Reflection;
 
 namespace TestMod
 {
     public class Plugin : IllusionPlugin.IEnhancedPlugin
     {
+        public static HarmonyInstance harmony { get; protected set; }
+
         public string[] Filter { get; } = new string[] { "RobocraftX", "Gamecraft" };
 
         public string Name { get; } = "TestPlugin";
@@ -21,7 +25,18 @@ namespace TestMod
         public void OnApplicationStart()
         {
             Debug.Log("Hello World!");
-            RuntimeCommands.Register<object>("Log", LogCommand,"Write a message to Player.log (Runtime version)");
+            if (harmony == null)
+            {
+                harmony = HarmonyInstance.Create("org.git.exmods.gamecraft.testmod.testplugin");
+                harmony.PatchAll(Assembly.GetExecutingAssembly());
+            }
+            MethodInfo commandHelp = Harmony.AccessTools.Method(Harmony.AccessTools.TypeByName("RobocraftX.GUI.CommandLine.CommandLineUtility"), "SaveCommandHelp", new Type[] { typeof(string), typeof(string)});
+            uREPL.RuntimeCommands.Register<string>("Log", LogCommand, "this description is not shown anywhere");
+            commandHelp.Invoke(null, new string[] { "Log", "Write a string to Player.log" });
+            uREPL.RuntimeCommands.Register<string>("Echo", EchoCommand, "this doesn't matter");
+            commandHelp.Invoke(null, new string[] { "Echo", "Write a message to the command line" });
+            uREPL.RuntimeCommands.Register("Exit", QuitCommand, "Close Gamecraft");
+            commandHelp.Invoke(null, new string[] { "Exit", "Forcefully exit Gamecraft immediately" });
             Debug.Log("TestPlugin startup complete");
         }
 
@@ -52,9 +67,19 @@ namespace TestMod
         }
 
         /* Log command method. This called by uREPL when the Log <object> command is called from RCX */
-        private void LogCommand(object msg)
+        private void LogCommand(string msg)
         {
             Debug.Log(msg);
         }
+
+        private void EchoCommand(string msg)
+        {
+            uREPL.Log.Output(msg);
+        }
+
+        private void QuitCommand()
+        {
+            UnityEngine.Application.Quit();
+        }
     }
 }