MudEngine:

- Implemented Scripting Engine; Not fully completed
 - Migrated PlayerBasic from MudDesigner to MudEngine.

MudEngine/Scripting/ScriptEngine.cs

@@ -0,0 +1,190 @@
+//Microsoft .NET Framework
+using System;
+using System.CodeDom;
+using System.CodeDom.Compiler;
+using Microsoft.CSharp;
+using System.Collections.Generic;
+using System.Linq;
+using System.IO;
+using System.Text;
+using System.Reflection;
+
+
+namespace MudEngine.Scripting
+{
+    public class ScriptEngine
+    {
+        public enum ScriptTypes
+        {
+            Assembly,
+            SourceFiles
+        }
+
+        /// <summary>
+        /// Path to the the script files directory
+        /// </summary>
+        public string ScriptPath { get; set; }
+        public string InstallPath { get; private set; }
+        public GameObjectCollection ObjectCollection { get; private set; }
+
+        /// <summary>
+        /// File Extension for the scripts
+        /// </summary>
+        public string ScriptExtension { get; set; }
+
+        /// <summary>
+        /// Error Messages logged during script compilation
+        /// </summary>
+        public string ErrorMessage 
+        { 
+            get
+            {
+                string errorMessages = "Script Compilation Failed!\n";
+                //Construct our error message.
+                foreach (string error in _ErrorMessages)
+                    errorMessages += error + "\n";
+
+                return errorMessages;
+            }
+            private set
+            {
+                _ErrorMessages = new string[] { value };
+            }
+        }
+
+        private ScriptTypes _ScriptTypes;
+        private Assembly _ScriptAssembly;
+        private string[] _ErrorMessages;
+
+        public ScriptEngine() : this(ScriptTypes.Assembly)
+        {
+            //Empty constructor. Only here for end-user ease of use. ScriptEngine(Game, ScriptTypes) is called from here.
+        }
+        
+
+        /// <summary>
+        /// Instances a new copy of the script engine
+        /// </summary>
+        /// <param name="scriptTypes">Tells the engine what kind of scripts will be loaded. Source File or assembly based.</param>
+        public ScriptEngine(ScriptTypes scriptTypes)
+        {
+            //Initialize our engine fields
+            _ScriptTypes = scriptTypes;
+            ScriptExtension = ".cs";
+
+            //Get our current install path
+            ScriptPath = Environment.CurrentDirectory;
+            InstallPath = Environment.CurrentDirectory;
+        }
+
+        /// <summary>
+        /// Compiles a collection of scripts stored in ScriptEngine.ScriptPath. Not supported on XBox360.
+        /// </summary>
+        /// <returns></returns>
+        public bool CompileScripts()
+        {
+            //Ensure the script path exists.
+            if (!System.IO.Directory.Exists(ScriptPath))
+            {
+                ErrorMessage = "Invalid Script path supplied.";
+                return false;
+            }
+            //Build an array of scripts
+            string[] scripts = System.IO.Directory.GetFiles(ScriptPath, "*" + ScriptExtension, System.IO.SearchOption.AllDirectories);
+
+            //Prepare the compiler.
+            Dictionary<string, string> providerOptions = new Dictionary<string,string>();
+            providerOptions.Add("CompilerVersion", "v3.5");
+
+            CompilerParameters param = new CompilerParameters(new string[] {"mscorlib.dll", "System.dll", "BlitScript.dll"});
+            param.GenerateExecutable = false;
+            param.GenerateInMemory = true;
+            param.OutputAssembly = "Scripts.dll";
+            param.IncludeDebugInformation = false;
+
+            //Compile the scripts with the C# CodeProvider
+            CSharpCodeProvider codeProvider = new CSharpCodeProvider(providerOptions);
+            CompilerResults results = new CompilerResults(new TempFileCollection());
+            results = codeProvider.CompileAssemblyFromFile(param, scripts);
+
+            //if we encountered errors we need to log them to our ErrorMessages property
+            if (results.Errors.Count >= 1)
+            {
+                List<string> errorCollection = new List<string>();
+                foreach (CompilerError error in results.Errors)
+                {
+                    string prefix = "Error: ";
+                    if (error.IsWarning)
+                        prefix = "Warning: ";
+
+                    errorCollection.Add(prefix + error.FileName + "(" + error.Line + ") - " + error.ErrorText);
+                    _ErrorMessages = errorCollection.ToArray();
+                }
+                return false;
+            }
+            else
+                return true;
+        }
+
+        /// <summary>
+        /// Initializes the script engine, loading the compiled scripts into memory
+        /// </summary>
+        /// <param name="scriptAssembly"></param>
+        public override void Initialize()
+        {
+            if (_ScriptTypes == ScriptTypes.Assembly)
+            {
+                InitializeAssembly();
+            }
+            else
+            {
+                InitializeSourceFiles();
+            }
+        }
+
+        private void InitializeAssembly()
+        {
+            if (!System.IO.File.Exists("Scripts.dll"))
+            {
+                ErrorMessage = "Failed to load Script Assembly!";
+                return;
+            }
+
+            _ScriptAssembly = Assembly.LoadFile(Path.Combine(InstallPath, "Scripts.dll"));
+
+            foreach (Type type in _ScriptAssembly.GetTypes())
+            {
+                //TODO: Re-implement StartupObject instancing only during Initialize calls.
+                //Remaining scripts should be instanced via a ScriptEngine.LoadObjectList() method.
+                //if (type.BaseType == typeof(StartupObject))
+                //{
+                    GameObject gameObject = new GameObject();
+                    gameObject.Instance = Activator.CreateInstance(type);
+                    gameObject.Name = type.Name;
+
+                    ObjectCollection._GameObjects.Add(gameObject);
+                //}
+            }
+        }
+
+        private void InitializeSourceFiles()
+        {
+        }
+
+        public GameObject GetObject(string objectName)
+        {
+            IEnumerable<GameObject> objectQuery =
+                from gameObject in ObjectCollection._GameObjects
+                where gameObject.Name == objectName
+                select gameObject;
+
+            foreach (GameObject gameObject in objectQuery)
+            {
+                if (gameObject.Name == objectName)
+                    return gameObject;
+            }
+
+            return null;
+        }
+    }
+}