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//测试案例
int main()
{
War *war = new War(new ProphaseState());
for(int i = 1; i < 40;i += 5)
{
war->SetDays(i);
war->GetState();
}
delete war;
return 0;
}
//战争结束
class EndState: public State
{
public:
void End(War *war) //结束阶段的具体行为
{
cout<<"战争结束"<<endl;
}
void CurrentState(War *war) { End(war); }
};
//后期
class AnaphaseState: public State
{
public:
void Anaphase(War *war) //后期的具体行为
{
if(war->GetDays() < 30)
cout<<"第"<<war->GetDays()<<"天:战争后期,双方拼死一搏"<<endl;
else
{
war->SetState(new EndState());
war->GetState();
}
}
void CurrentState(War *war) { Anaphase(war); }
};
//中期
class MetaphaseState: public State
{
public:
void Metaphase(War *war) //中期的具体行为
{
if(war->GetDays() < 20)
cout<<"第"<<war->GetDays()<<"天:战争中期,进入相持阶段,双发各有损耗"<<endl;
else
{
war->SetState(new AnaphaseState());
war->GetState();
}
}
void CurrentState(War *war) { Metaphase(war); }
};
//前期
class ProphaseState: public State
{
public:
void Prophase(War *war) //前期的具体行为
{
if(war->GetDays() < 10)
cout<<"第"<<war->GetDays()<<"天:战争初期,双方你来我往,互相试探对方"<<endl;
else
{
war->SetState(new MetaphaseState());
war->GetState();
}
}
void CurrentState(War *war) { Prophase(war); }
};