#include <iostream>
#include <string>
#include <vector>
using namespace std;
class STMemento
{
private:
int iVitality;
public:
STMemento(){}
STMemento(int iVitality)
{
this->iVitality = iVitality;
}
int GetVitality() const
{
return this->iVitality;
}
};
class STOriginator
{
private:
int iVitality;
string name;
public:
STOriginator(string strName, int iVit): iVitality(iVit), name(strName)
{
}
STMemento* SaveState()
{
return new STMemento(iVitality);
}
void RecoverState(const STMemento* stMemento)
{
this->iVitality = stMemento->GetVitality();
}
void SetVitality(int iVit)
{
this->iVitality = iVit;
}
void Show()
{
cout<< "Name: "<< name<< endl;
cout<< "Live: "<< iVitality<< endl;
}
};
class STCareTaker
{
private:
vector<STMemento*> vecStMemento;
public:
void AddMemento(STMemento* stMemento)
{
vecStMemento.push_back(stMemento);
}
STMemento* GetMemento(int Iindex)
{
if (Iindex >= vecStMemento.size())
return NULL;
else
return vecStMemento[Iindex];
}
};
int main(int argc, char* argv[])
{
STOriginator* pstOriginator = new STOriginator("xxx", );
cout<< "原始状态： "<< endl;
pstOriginator->Show();
STCareTaker* pstCareTaker = new STCareTaker();
pstCareTaker->AddMemento(pstOriginator->SaveState());
pstOriginator->SetVitality();
cout<< "战斗后状态： "<< endl;
pstOriginator->Show();
pstOriginator->RecoverState(pstCareTaker->GetMemento());
cout<< "归档后状态： "<< endl;
pstOriginator->Show();
return ;
}
/////////////////////////////
[root@ ~/learn_code/design_pattern/15_memento]$ ./memento
原始状态：
Name: xxx
Live:
战斗后状态：
Name: xxx
Live:
归档后状态：
Name: xxx
Live: