state.h

系列三 看过这些之后 会对编程的概念和理解更加深刻的 不多 一定要仔细看才行

#ifndef STATE_H
#define STATE_H
//------------------------------------------------------------------------
//
//  Name:   State.h
//
//  Desc:   abstract base class to define an interface for a state
//
//  Author: Mat Buckland 2002 ([e-mail])
//
//------------------------------------------------------------------------


template <class entity_type>
class State
{
public:

  virtual ~State(){}

  //this will execute when the state is entered
  virtual void Enter(entity_type*)=0;

  //this is the states normal update function
  virtual void Execute(entity_type*)=0;

  //this will execute when the state is exited. (My word, isn't
  //life full of surprises... ;o))
  virtual void Exit(entity_type*)=0;
};

#endif