🚀 go-pugleaf

The following is the translation of your CDController to the state
pattern.  


==================cdcontroller.h===============================
#ifndef FSM_CDControllerFSM
#define FSM_CDControllerFSM

#include <stddef.h>

class CDControllerFSM;

//----------------------------------------------
// CDControllerFSMState: The base state class
//----------------------------------------------
class CDControllerFSMState
{
  public: 
    virtual const char* StateName() const = 0;
    virtual void Stop( CDControllerFSM& );
    virtual void Play( CDControllerFSM& );
    virtual void End( CDControllerFSM& );
};

//----------------------------------------------
// State: Idle
//----------------------------------------------
class CDControllerFSMIdleState : public CDControllerFSMState
{
  public: 
    virtual const char* StateName() const
        { return "Idle"; }
    virtual void Play( CDControllerFSM& );
};

//----------------------------------------------
// State: Playing
//----------------------------------------------
class CDControllerFSMPlayingState : public CDControllerFSMState
{
  public: 
    virtual const char* StateName() const
        { return "Playing"; }
    virtual void Stop( CDControllerFSM& );
    virtual void End( CDControllerFSM& );
};

//----------------------------------------------
// CDControllerFSM: The Finite State Machine class
//----------------------------------------------
class CDControllerFSM
{
  public: 
    // Static State variables
    static CDControllerFSMIdleState Idle;
    static CDControllerFSMPlayingState Playing;

    CDControllerFSM(); // default Constructor

    // Event functions
    void Stop() { itsState->Stop( *this ); }
    void Play() { itsState->Play( *this ); }
    void End() { itsState->End( *this ); }

    // State Accessor functions
    void SetState( CDControllerFSMState& theState ) 
    { itsState = &theState; }
    CDControllerFSMState& GetState() const 
    { return *itsState; }

    const char* GetCurrentStateName() const 
    { return itsState->StateName(); }

  private:
    CDControllerFSMState* itsState;
};

#endif



=========================cdcontroller.cpp===================


#include "cdcontroller.h"

CDControllerFSMIdleState CDControllerFSM::Idle;
CDControllerFSMPlayingState CDControllerFSM::Playing;

//----------------------------------------------
// Default Event Functions
//----------------------------------------------

void CDControllerFSMState::Stop(CDControllerFSM& s)
  { s.FSMError("Stop", s.GetState().StateName()); }

void CDControllerFSMState::Play(CDControllerFSM& s)
  { s.FSMError("Play", s.GetState().StateName()); }

void CDControllerFSMState::End(CDControllerFSM& s)
  { s.FSMError("End", s.GetState().StateName()); }


//----------------------------------------------
// Idle Actions and Transitions
//----------------------------------------------

void CDControllerFSMIdleState::Play( CDControllerFSM& s )
{
    s.SetState(CDControllerFSM::Playing);
}

//----------------------------------------------
// Playing Actions and Transitions
//----------------------------------------------


void CDControllerFSMPlayingState::Stop( CDControllerFSM& s )
{
    s.SetState(CDControllerFSM::Idle);
}


void CDControllerFSMPlayingState::End( CDControllerFSM& s )
{
    s.SetState(CDControllerFSM::Idle);
}

//----------------------------------------------
// State Machine Constructor: CDControllerFSM
//  set Initial State to: Idle
//
//----------------------------------------------
CDControllerFSM::CDControllerFSM() 
 : itsState(&Idle)
{
}

=======================================

This code was generated by SMC from the following input file:

FSMName CDControllerFSM
Context CDController
Initial Idle
FSMGenerator smc.generator.cpp.SMCppGenerator
{
  Idle
  {
    Play  Playing  {}
  }

  Playing
  {
    Stop  Idle  {}
    End   Idle  {}
  }
}

You can get SMC from the resources section of www.objectmentor.com





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