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Extending State Machine with Lua

Started by templewulf Apr 12, 2006 at 8:59 AM 1 replies 400+ views

Original Post

Apr 12, 2006 at 8:59 AM

So, I'm getting into Lua for the first time, but I've found that it requires a bit more work than my previous C++ framework. I'm still using C++ for various system managers (video, audio, logfiles, etc.), and I'm writing the game logic in Lua. The problem is that in my previous system, the CSystem class contained a polymorphic std::list >, with classes for CGameStateMenu, CGameStateField, CGameStateMap, etc. implementing IGameState. Now that I've chosen to implement game logic in Lua, I don't know how to reorganize my state classes. Is it possible for Lua tables/classes to inherit from "real" C++ classes and still support a polymorphic list? What solutions have any of you used when mixing C++ and scripting code? Do I even need state classes, or is there a more elegant solution I'm not aware of? Thanks in advance, TW

Emmanuel Deloget

Apr 12, 2006 at 11:07 AM

You can add a CLuaGameState (which inherit IGameState) that will be powered by a serie of lua scripts. That's how I'd do it.

Regards,

templewulf

Apr 12, 2006 at 11:17 AM

Now that you say it, I don't know why I hadn't thought of it earlier. [lol] Though, now that a gamestate class varies on scripts, would I even need the abstract interface IGameState?

Thanks Emmanuel! I say Ratings++ to you!

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