Is there any C# interpreter that can be used inside C++ and yet still allow .Net access?
I want to use C# scripts for games and I'm not sure how to proceed with that.
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Use System.CodeDom. An AppDomain if you need to be able to unload the scripts.Hans Passant– Hans Passant2010-12-09 21:01:12 +00:00Commented Dec 9, 2010 at 21:01
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7 Answers
You can write a simple class in C#, let's call it ScriptRunner that would take your C# code as input, compile it at runtime to produce a new assembly in memory, then it will use Reflection to load a specific Type from this new assembly, and will run some method with an expected name.
Then, use COM Interop (for example) to create a ScriptRunner .NET object from your C++ native application, and you'll be able to use it to run scripts.
Start with:
var myProvider = Microsoft.CSharp.CSharpCodeProvider.CreateProvider();
var myCompiler = myProvider.CreateCompiler();
and it's really easy to continue on your own by using IntelliSense to see what's on the ICodeCompiler interface.
If you've got some specific questions about this approach please ask.
Comments
C# is not an interpreted language, it is a compiled language.
You can write C# scripts, but why not use Python or Ruby or Lua or some other true-blue scripting language?
I feel somewhat dirty mentioning this, but it looks like there is an ECMA compliant C# scripting engine.
2 Comments
Hans Passant
These are thin lines. C# is interpreted on .NET Micro. Python, Ruby and Lua are compiled. There are jitters for Python and (I think) Ruby.
JC Leyba
Some people just really like C#'s syntax. I much prefer languages that use curly brackets anyway, though I do get your point. :)
I believe C# is a compiled language only. Your best bet would be to call the csharp compiler (csc.exe) and load the assembly dynamically.
Comments
YOu can have .net dlls and use them in your C++ code.
Comments
Is it C++ or C++/CLI? If it's the "normal" C++ I don't think it will be possible to use C# as it is a compiled language and a managed one, your best bet would be to use the managed version of C++ and compile the C# code, then load it.
2 Comments
Eclipse
You can always use a C++/CLI wrapper dll to access .NET from a straight native C++ app.
Richard Lalancette
At the time of this comment, c++/CLI was on windows only. If you want a cross platform solution, you need something else.
I've never tried to do that but I think C# is definitely not a suitable language for scripting, for your purpose Lua or Python (for example) are certainly better...
1 Comment
Sanctus2099
I've implemented lua in another game but it doesn't feel right. I'd be much more comfortable with C#
I assume you want to use C++ for DirectX/OpenGL support and then want to load in the entire .Net Framework on top of that to support scripting? That would be a very heavy footprint if it were possible. Since C# is compiled into bytecode (just like Java), you would have to precompile your scripts.
Your best best is to to use an opensource scripting language (php, lua, etc).
