#include <iostream>
#include <string>
#include <stdlib.h>

using namespace std;

class failure
{public:
  virtual void view()=0;
  virtual void Repair()=0;
  virtual bool Check()=0;  
  virtual string GetStatus()=0;
};

class EngineFailed:public failure
{private:
        string status;
 public:
        virtual bool Check(){return status.compare("Engine is OK!")==0;}
        virtual string GetStatus(){return status;}
        virtual void Repair(){if (rand()%3) status="Engine is OK!";};
        virtual void view(){cout<<status<<endl;}
        EngineFailed()
        {if (rand()%2) status="Engine is OK!";
         else status="Engine failed";
        };

};

class LockFailed:public failure
{private:
        string status;
 public:
        virtual bool Check(){return status.compare("Lock is OK!")==0;}
        virtual string GetStatus(){return status;}
        virtual void Repair()
        {if (rand()%3)
          status="Lock is OK!";
        };
        virtual void view(){cout<<status<<endl;}
        LockFailed()
        {if (rand()%2) status="Lock is OK!";
         else status="Lock failed";
        };
};

class WeaponFailed:public failure
{private:
        string status;
 public:
        virtual bool Check(){return status.compare("Weapon is OK!")==0;}
        virtual string GetStatus(){return status;}
        virtual void Repair(){if (rand()%3) status="Weapon is OK!";};
        virtual void view(){cout<<status<<endl;}
        
        WeaponFailed()
        {if (rand()%2) status="Weapon is OK!";
         else status="Weapon failed";
        };
};

class Weapon
{private:
  int Power;
//  static 
 public:
  WeaponFailed W;
  failure *f;
 void SetPower(int P){Power=P%10;}
 void Fire()
 {if (f->Check())
  {if(Power%5>rand()%10)
   cout<<"++ No one survive"<<endl;
  else  
   if(Power%7>rand()%10)
    cout<<"+ Destroyed!!!"<<endl;
   else 
    cout<<"- Keep alive..."<<endl;            
  }
  else {cout<<"Weapon is broken"<<endl;}
 }     
 Weapon(){
          f = new WeaponFailed;
          f=&W;
          Power=rand()%10;
          f->view();
          }
 ~Weapon(){delete f;}
};

class Engine
{private:
  int Number;
  int Power;
  bool started;
 public:
  EngineFailed E;
  failure *f;
  void SetNumber(int N){Number=N;}
  void SetPower(int P){Power=P;}
  Engine(){started=false;

           f=new EngineFailed;
           f=&E;
           Power=rand()%10; 
           f->view();
           }
  void Start(){
  if (f->Check()){started=true; cout<<"Engine starting"<<endl;}
   else {started=false;
         cout<<"Engine is broken"<<endl;}
  };
  void Stop(){ if(started) {started=false; cout<<"Engine stopped"<<endl;}
               else cout<<"Engine doesn't started, cannot stop it"<<endl;}
  ~Engine(){delete f;} 
};

class Lock
{private:
  int Number;
  bool opened;

 public:
  LockFailed L;
  failure *f;
  void SetNumber(int N){Number=N;}
  Lock(){
         f=new LockFailed;
         f=&L; 
         Number=0;
         opened=false; 
         f->view();}

  void Open(){
  if (f->Check()) {opened=true; cout<<"Lock openning"<<endl;}
   else {opened=false; cout<<"Lock is broken"<<endl;}
        };
  
  void Close(){
  if (opened) {opened=false; cout<<"Lock closed"<<endl;}
   else {cout<<"Lock doesn't open"<<endl;}
        }; 
  ~Lock(){delete f;}
};

class space_ship
{public:
  Engine e[4];
  Weapon w[3];
  Lock l[2];

  space_ship();
};

space_ship::space_ship()
{for(int i=0;i<4;i++)
  {e[i].SetNumber(i); e[i].SetPower(rand()%10);}
 for(int i=0;i<3;i++)
  {w[i].SetPower(rand()%10);}
 for(int i=0;i<4;i++)
  {l[i].SetNumber(i);} 
}



int main()
{space_ship SHIP;
 int i=1,j,k;
 while (i!=0)
 {cout<<"1-select engines"<<"\n"<<"2-select weapon"<<"\n"<<"3-select locks"<<"\n"<<"0- exit"<<"\n"<<"type your choise"<<endl;
  cin>>i;
  switch (i)
       {case 1:
             cout<<"select engine's number"<<endl;
             cin>>j;
             cout<<"1- engine's status"<<"\n"<<"2- start engine"<<"\n"<<"3- stop engine"<<"\n"<<"4- repair engine"<<"\n"<<"0- return"<<endl;
             cin>>k;
             switch (k)
                  {case 1:SHIP.e[j].f->view();break;
                   case 2:SHIP.e[j].Start();break; 
                   case 3:SHIP.e[j].Stop();break;
                   case 4:SHIP.e[j].f->Repair();break;                   
                   default: break;
                  }
             break;
        case 2:
             cout<<"select weapon's number"<<endl;
             cin>>j;
             cout<<"1- weapon's status"<<"\n"<<"2- fire"<<"\n"<<"3- repair engine"<<"\n"<<"0- return"<<endl;
             cin>>k;
             switch (k)
                  {case 1:SHIP.w[j].f->view();break;
                   case 2:SHIP.w[j].Fire();break; 
                   case 3:SHIP.w[j].f->Repair();break;                   
                   default: break;
                  }
             break;
        case 3:
             cout<<"select lock's number"<<endl;
             cin>>j;
             cout<<"1- lock's status"<<"\n"<<"2- open lock"<<"\n"<<"3- close lock"<<"\n"<<"4- repair lock"<<"\n"<<"0- return"<<endl;
             cin>>k;
             switch (k)
                  {case 1:SHIP.l[j].f->view();break;
                   case 2:SHIP.l[j].Open();break; 
                   case 3:SHIP.l[j].Close();break;
                   case 4:SHIP.l[j].f->Repair();break;                   
                  }
             break;
       }
 }
 return 0;
};