moScript.h

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/*******************************************************************************

                                moScript.h

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  Copyright (C) 2006 Fabricio Costa

  Authors:
  Fabricio Costa


  Description:
  Base class for Lua-scriptable classes. Based in the Lua article and
  VC project by Richard Shephard, available online at:
  http://www.codeproject.com/cpp/luaincpp.asp?msg=1741798

*******************************************************************************/

#ifndef __MO_SCRIPT_H__
#define __MO_SCRIPT_H__

#include "moLuaBase.h"

class LIBMOLDEO_API moScript
{
public:

    typedef int (*Function)(moLuaVirtualMachine& vm);

    Function Functions[255];

    moScript();
    virtual ~moScript (void);

    void InitScript();
    void FinishScript();

    bool IsInitialized() {
            return m_initialized;
    }

    bool CompileFile(const char *strFilename);
    bool CompileBuffer(unsigned char *pbBuffer, size_t szLen);

    int RegisterFunction(const char *strFuncName, moScript::Function& fun );
    int RegisterFunction(const char *strFuncName);
    int RegisterBaseFunction (const char *strFuncName);


    bool SelectScriptFunction(const char *strFuncName);
    void AddFunctionParam(int iInt);
    void AddFunctionParam(float fFloat);
    void AddFunctionParam(char *string);

    bool RunSelectedFunction(int nReturns = 0);

   bool ScriptHasFunction(const char *strScriptName);

   int methods(void) { return m_nMethods; }

    virtual int ScriptCalling(moLuaVirtualMachine& vm, int iFunctionNumber) = 0;

    virtual int ResetScriptCalling() {
        m_iMethodBaseIterator = m_iMethodBaseAncestors-1;
        m_iMethodBase = m_MethodBases[m_iMethodBaseIterator--];
        return m_iMethodBase;
    }

    virtual int NextScriptCalling() {
        if (m_iMethodBaseIterator>=0) m_iMethodBase = m_MethodBases[m_iMethodBaseIterator--];
        return m_iMethodBase;
     }

   virtual void HandleReturns(moLuaVirtualMachine& vm, const char *strFunc) = 0;

   moLuaVirtualMachine& mvm (void) { return m_vm; }
protected:
   bool m_initialized;
   int m_nMethods;
   static moLuaVirtualMachine m_vm;
   static moLuaDebugger m_dbg;
   int m_iThisRef;
   int m_nArgs;
   const char *m_strFunctionName;

    // For indexing scripted methods.
    int m_iMethodBase; 
    int m_iMethodBaseIterator; 
    //and manage inheritance indexed methods
    int m_iMethodBaseAncestors; 
    int m_MethodBases[256]; 

};

#endif