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实验5 继承和多态

时间:2022-11-26 16:56:13浏览次数:31  
标签:string 继承 void 多态 player int 实验 include name

1.实验4

pets.hpp

 1 #include<iostream>
 2 #include<string>
 3  using namespace std;
 4  class MachinePets{
 5      private:
 6           string nickname;
 7       public:
 8          MachinePets(const string s)
 9          {
10               nickname=s;
11           } 
12           virtual string talk()=0;
13           string get_nickname() const{
14             return nickname;
15           }
16  };
17   class PetCats: public MachinePets{
18        public:
19             PetCats(const string s):MachinePets(s)
20                 {}    
21             string talk()
22             {
23                 string talk="miao wu ~";
24                 return talk;
25             }
26   };
27   class PetDogs: public MachinePets{
28         public:
29             PetDogs(const string s):MachinePets(s)
30             {
31              
32             }
33            string talk()
34             {
35                 string talk="wang wang ~";
36                 return talk;
37             }
38   };

task4.cpp

 1 #include <iostream>
 2 #include "pets.hpp"
 3 
 4 void play(MachinePets &obj) {
 5     std::cout << obj.get_nickname() << " says " << obj.talk() << std::endl;
 6 }
 7 
 8 void test() {
 9     PetCats cat("miku");
10     PetDogs dog("da huang");
11 
12     play( cat );
13     play( dog );
14 }
15 
16 int main() {
17     test();
18 }

运行结果

 

 2.实验5

person.hpp

 1 #include<iostream>
 2 #include<string>
 3 #include<iomanip>
 4 #include<vector>
 5 #include <sstream>
 6  using namespace std;
 7  class Person{
 8       private:
 9            string name;
10            string telephone;
11            string email;
12      public:
13          Person(string n=" ",string t=" ",string e=" ")
14          {
15               name=n;telephone=t;email=e;
16          }
17          Person(const Person &p)
18          {
19               name=p.name;telephone=p.telephone;email=p.email;
20          }
21          void update_telephone()
22          {
23               cout<<"Enter the telephone number: ";
24               string ut;
25               cin>>ut;
26               telephone=ut;
27               cout<<"telephone number has been updated...."<<endl;
28          }
29          void update_email()
30          {
31              cout<<"Enter the email address: ";
32               string um;
33               cin>>um;
34               email=um;
35               cout<<"email address has been updated...."<<endl;
36          }
37          friend ostream& operator<<(ostream &out, const Person &p);
38          friend istream& operator>>(istream &in,  Person &p);
39          friend bool operator==(const Person &p1, const Person &p2);
40  };
41   bool operator==(const Person &p1, const Person &p2)
42   {
43        if(p1.name!=p2.name||p1.telephone!=p2.telephone)
44        return false;
45        else return true;
46   }
47   ostream& operator <<(ostream &out, const Person &p)
48   {
49        out<<left<<setfill(' ')<<setw(15)<<p.name
50                       <<setw(15)<<p.telephone
51                       <<setw(20)<<p.email;
52     return out;
53   }
54   istream& operator >>(istream &in, Person &p)
55   {
56 
57        getline(cin,p.name);
58        getline(cin,p.telephone);
59        getline(cin,p.email);
60        cout<<endl;
61        return in;
62   }

task5.cpp

 1 #include<iostream>
 2 #include<string>
 3 #include<iomanip>
 4 #include<vector>
 5 #include <sstream>
 6 void test() {
 7     vector<Person> phone_book;
 8     Person p;
 9     cout << "Enter person's contact until press Ctrl + Z" << endl;
10     while(cin>>p)
11     {
12     phone_book.push_back(p);
13     }
14     cin.clear();
15     cout << "\nupdate someone's contact: \n";
16     phone_book.at(0).update_telephone();
17     phone_book.at(0).update_email();  
18     
19     cout << "\ndisplay all contacts' info\n";
20     for(auto &phone: phone_book)
21      cout << phone << endl;
22     
23     cout << "\ntest whether the same contact\n";
24     cout << boolalpha << (phone_book.at(0) == phone_book.at(1)) << endl;
25 }
26 
27 int main() {
28     test();
29 }
30   

运行结果

 

 

3.实验6

swordsman.h

 1 #include "player.h"
 2 class swordsman : public player        // subclass swordsman publicly inherited from base player
 3 {
 4 public:
 5     swordsman(int lv_in=1, string name_in="Not Given");    
 6         // constructor with default level of 1 and name of "Not given"
 7     void isLevelUp();
 8     bool attack (player &p);
 9     bool specialatt(player &p);
10         /* These three are derived from the pure virtual functions of base class
11            The definition of them will be given in this subclass. */
12     void AI(player &p);                // Computer opponent
13 };

container.cpp

 1 #include<iostream>
 2 #include"container.h"
 3 using namespace std;
 4 container::container()
 5 {
 6     set(0,0);
 7 }
 8 
 9 // set the item numbers
10 void container::set(int heal_n, int mw_n)
11 {
12     numOfHeal=heal_n;
13     numOfMW=mw_n;
14 }
15 
16 // get the number of heal
17 int container::nOfHeal()
18 {
19     return numOfHeal;
20 }
21 
22 // get the number of magic water
23 int container::nOfMW()
24 {
25     return numOfMW;
26 }
27 
28 // display the items;
29 void container::display()
30 {
31     cout<<"Your bag contains: "<<endl;
32     cout<<"Heal(HP+100): "<<numOfHeal<<endl;
33     cout<<"Magic Water (MP+80): "<<numOfMW<<endl;
34 }
35 
36 //use heal
37 bool container::useHeal()
38 {
39     numOfHeal--;
40     return 1;        // use heal successfully
41 }
42 
43 //use magic water
44 bool container::useMW()
45 {
46     numOfMW--;
47     return 1;        // use magic water successfully
48 }

container.h

 1 #ifndef _CONTAINER    // Conditional compilation
 2 #define _CONTAINER
 3 
 4 class container        // Inventory
 5 {
 6 protected:
 7     int numOfHeal;            // number of heal
 8     int numOfMW;            // number of magic water
 9 public:
10     container();            // constuctor
11     void set(int heal_n, int mw_n);    // set the items numbers
12     int nOfHeal();            // get the number of heal
13     int nOfMW();            // get the number of magic water
14     void display();            // display the items;
15     bool useHeal();            // use heal
16     bool useMW();            // use magic water
17 };
18 
19 #endif

main.cpp

  1 #include <iostream>
  2 #include <string>
  3 using namespace std;
  4 
  5 #include "swordsman.h"
  6 
  7 
  8 int main()
  9 {
 10     string tempName;
 11     bool success=0;        //flag for storing whether operation is successful
 12     cout <<"Please input player's name: ";
 13     cin >>tempName;        // get player's name from keyboard input
 14     player *human;        // use pointer of base class, convenience for polymorphism
 15     int tempJob;        // temp choice for job selection
 16     do
 17     {
 18         cout <<"Please choose a job: 1 Swordsman, 2 Archer, 3 Mage"<<endl;
 19         cin>>tempJob;
 20         system("cls");        // clear the screen
 21         switch(tempJob)
 22         {
 23         case 1:
 24             human=new swordsman(1,tempName);    // create the character with user inputted name and job
 25             success=1;        // operation succeed
 26             break;
 27         default:
 28             break;                // In this case, success=0, character creation failed
 29         }
 30     }while(success!=1);        // so the loop will ask user to re-create a character
 31 
 32     int tempCom;            // temp command inputted by user
 33     int nOpp=0;                // the Nth opponent
 34     for(int i=1;nOpp<5;i+=2)    // i is opponent's level
 35     {
 36         nOpp++;
 37         system("cls");
 38         cout<<"STAGE" <<nOpp<<endl;
 39         cout<<"Your opponent, a Level "<<i<<" Swordsman."<<endl;
 40         system("pause");
 41         swordsman enemy(i, "Warrior");    // Initialise an opponent, level i, name "Junior"
 42         human->reFill();                // get HP/MP refill before start fight
 43         
 44         while(!human->death() && !enemy.death())    // no died
 45         {
 46             success=0;
 47             while (success!=1)
 48             {
 49                 showinfo(*human,enemy);                // show fighter's information
 50                 cout<<"Please give command: "<<endl;
 51                 cout<<"1 Attack; 2 Special Attack; 3 Use Heal; 4 Use Magic Water; 0 Exit Game"<<endl;
 52                 cin>>tempCom;
 53                 switch(tempCom)
 54                 {
 55                 case 0:
 56                     cout<<"Are you sure to exit? Y/N"<<endl;
 57                     char temp;
 58                     cin>>temp;
 59                     if(temp=='Y'||temp=='y')
 60                         return 0;
 61                     else
 62                         break;
 63                 case 1:
 64                     success=human->attack(enemy);
 65                     human->isLevelUp();
 66                     enemy.isDead();
 67                     break;
 68                 case 2:
 69                     success=human->specialatt(enemy);
 70                     human->isLevelUp();
 71                     enemy.isDead();
 72                     break;
 73                 case 3:
 74                     success=human->useHeal();
 75                     break;
 76                 case 4:
 77                     success=human->useMW();
 78                     break;
 79                 default:
 80                     break;
 81                 }
 82             }
 83             if(!enemy.death())        // If AI still alive
 84                 enemy.AI(*human);
 85             else                            // AI died
 86             {
 87                 cout<<"YOU WIN"<<endl;
 88                 human->transfer(enemy);        // player got all AI's items
 89             }
 90             if (human->death())
 91             {
 92                 system("cls");
 93                 cout<<endl<<setw(50)<<"GAME OVER"<<endl;
 94                 delete human;        // player is dead, program is getting to its end, what should we do here?
 95                 system("pause");
 96                 return 0;
 97             }
 98         }
 99     }
100     delete human;            // You win, program is getting to its end, what should we do here?
101     system("cls");
102     cout<<"Congratulations! You defeated all opponents!!"<<endl;
103     system("pause");
104     return 0;
105 }
106         

 

player.h

 1 #ifndef _PLAYER
 2 #define _PLAYER
 3 #include<iostream>
 4 #include <iomanip>        // use for setting field width
 5 #include <time.h>        // use for generating random factor
 6 #include "container.h"
 7 #include<string>
 8 using namespace std;
 9 enum job {sw, ar, mg};    /* define 3 jobs by enumerate type
10                                sword man, archer, mage */
11 class player
12 {
13     friend void showinfo(player &p1, player &p2);
14     friend class swordsman;
15 
16 protected:
17     int HP, HPmax, MP, MPmax, AP, DP, speed, EXP, LV;
18     // General properties of all characters
19     string name;    // character name
20     job role;        /* character's job, one of swordman, archer and mage,
21                        as defined by the enumerate type */
22     container bag;    // character's inventory
23 
24 public:
25     virtual bool attack(player &p)=0;    // normal attack
26     virtual bool specialatt(player &p)=0;    //special attack
27     virtual void isLevelUp()=0;            // level up judgement
28     /* Attention!
29     These three methods are called "Pure virtual functions".
30     They have only declaration, but no definition.
31     The class with pure virtual functions are called "Abstract class", which can only be used to inherited, but not to constructor objects. 
32     The detailed definition of these pure virtual functions will be given in subclasses. */
33 
34     void reFill();        // character's HP and MP resume
35     bool death();        // report whether character is dead
36     void isDead();        // check whether character is dead
37     bool useHeal();        // consume heal, irrelevant to job
38     bool useMW();        // consume magic water, irrelevant to job
39     void transfer(player &p);    // possess opponent's items after victory
40     void showRole();    // display character's job
41     
42 private:
43     bool playerdeath;            // whether character is dead, doesn't need to be accessed or inherited
44 };
45 
46 #endif

 

swordsman.cpp

  1 #include<iostream>
  2 #include"swordsman.h"
  3 #include<cstdlib>
  4  using namespace std;
  5 swordsman::swordsman(int lv_in, string name_in)
  6 {
  7     role=sw;    // enumerate type of job
  8     LV=lv_in;
  9     name=name_in;
 10     
 11     // Initialising the character's properties, based on his level
 12     HPmax=150+8*(LV-1);        // HP increases 8 point2 per level
 13     HP=HPmax;
 14     MPmax=75+2*(LV-1);        // MP increases 2 points per level
 15     MP=MPmax;
 16     AP=25+4*(LV-1);            // AP increases 4 points per level
 17     DP=25+4*(LV-1);            // DP increases 4 points per level
 18     speed=25+2*(LV-1);        // speed increases 2 points per level
 19     
 20     playerdeath=0;
 21     EXP=LV*LV*75;
 22     bag.set(lv_in, lv_in);
 23 }
 24 
 25 void swordsman::isLevelUp()
 26 {
 27     if(EXP>=LV*LV*75)
 28     {
 29         LV++;
 30         AP+=4;
 31         DP+=4;
 32         HPmax+=8;
 33         MPmax+=2;
 34         speed+=2;
 35         cout<<name<<" Level UP!"<<endl;
 36         cout<<"HP improved 8 points to "<<HPmax<<endl;
 37         cout<<"MP improved 2 points to "<<MPmax<<endl;
 38         cout<<"Speed improved 2 points to "<<speed<<endl;
 39         cout<<"AP improved 4 points to "<<AP<<endl;
 40         cout<<"DP improved 5 points to "<<DP<<endl;
 41         system("pause");
 42         isLevelUp();    // recursively call this function, so the character can level up multiple times if got enough exp
 43     }
 44 }
 45 
 46 bool swordsman::attack(player &p)
 47 {
 48     double HPtemp=0;        // opponent's HP decrement
 49     double EXPtemp=0;        // player obtained exp
 50     double hit=1;            // attach factor, probably give critical attack
 51     srand((unsigned)time(NULL));        // generating random seed based on system time
 52 
 53     // If speed greater than opponent, you have some possibility to do double attack
 54     if ((speed>p.speed) && (rand()%100<(speed-p.speed)))        // rand()%100 means generates a number no greater than 100
 55     {
 56         HPtemp=(int)((1.0*AP/p.DP)*AP*5/(rand()%4+10));        // opponent's HP decrement calculated based their AP/DP, and uncertain chance
 57         cout<<name<<"'s quick strike hit "<<p.name<<", "<<p.name<<"'s HP decreased "<<HPtemp<<endl;
 58         p.HP=int(p.HP-HPtemp);
 59         EXPtemp=(int)(HPtemp*1.2);
 60     }
 61 
 62     // If speed smaller than opponent, the opponent has possibility to evade
 63     if ((speed<p.speed) && (rand()%50<1))
 64     {
 65         cout<<name<<"'s attack has been evaded by "<<p.name<<endl;
 66         system("pause");
 67         return 1;
 68     }
 69 
 70     // 10% chance give critical attack
 71     if (rand()%100<=10)
 72     {
 73         hit=1.5;
 74         cout<<"Critical attack: ";
 75     }
 76 
 77     // Normal attack
 78     HPtemp=(int)((1.0*AP/p.DP)*AP*5/(rand()%4+10));
 79     cout<<name<<" uses bash, "<<p.name<<"'s HP decreases "<<HPtemp<<endl;
 80     EXPtemp=(int)(EXPtemp+HPtemp*1.2);
 81     p.HP=(int)(p.HP-HPtemp);
 82     cout<<name<<" obtained "<<EXPtemp<<" experience."<<endl;
 83     EXP=(int)(EXP+EXPtemp);
 84     system("pause");
 85     return 1;        // Attack success
 86 }
 87 
 88 bool swordsman::specialatt(player &p)
 89 {
 90     if(MP<40)
 91     {
 92         cout<<"You don't have enough magic points!"<<endl;
 93         system("pause");
 94         return 0;        // Attack failed
 95     }
 96     else
 97     {
 98         MP-=40;            // consume 40 MP to do special attack
 99         
100         //10% chance opponent evades
101         if(rand()%100<=10)
102         {
103             cout<<name<<"'s leap attack has been evaded by "<<p.name<<endl;
104             system("pause");
105             return 1;
106         }
107         
108         double HPtemp=0;        
109         double EXPtemp=0;        
110         //double hit=1;            
111         //srand(time(NULL));        
112         HPtemp=(int)(AP*1.2+20);        // not related to opponent's DP
113         EXPtemp=(int)(HPtemp*1.5);        // special attack provides more experience
114         cout<<name<<" uses leap attack, "<<p.name<<"'s HP decreases "<<HPtemp<<endl;
115         cout<<name<<" obtained "<<EXPtemp<<" experience."<<endl;
116         p.HP=(int)(p.HP-HPtemp);
117         EXP=(int)(EXP+EXPtemp);
118         system("pause");
119     }
120     return 1;    // special attack succeed
121 }
122 
123 // Computer opponent
124 void swordsman::AI(player &p)
125 {
126     if ((HP<(int)((1.0*p.AP/DP)*p.AP*1.5))&&(HP+100<=1.1*HPmax)&&(bag.nOfHeal()>0)&&(HP>(int)((1.0*p.AP/DP)*p.AP*0.5)))
127         // AI's HP cannot sustain 3 rounds && not too lavish && still has heal && won't be killed in next round
128     {
129         useHeal();
130     }
131     else
132     {
133         if(MP>=40 && HP>0.5*HPmax && rand()%100<=30)
134             // AI has enough MP, it has 30% to make special attack
135         {
136             specialatt(p);
137             p.isDead();        // check whether player is dead
138         }
139         else
140         {
141             if (MP<40 && HP>0.5*HPmax && bag.nOfMW())
142                 // Not enough MP && HP is safe && still has magic water
143             {
144                 useMW();
145             }
146             else
147             {
148                 attack(p);    // normal attack
149                 p.isDead();
150             }
151         }
152     }
153 }

 

player.cpp

  1 #include<iostream>
  2 #include<iomanip>
  3 #include"player.h"
  4 using namespace std;
  5 
  6 void player::reFill()
  7 {
  8     HP=HPmax;        // HP and MP fully recovered
  9     MP=MPmax;
 10 }
 11 
 12 // report whether character is dead
 13 bool player::death()
 14 {
 15     return playerdeath;
 16 }
 17 
 18 // check whether character is dead
 19 void player::isDead()
 20 {
 21     if(HP<=0)        // HP less than 0, character is dead
 22     {
 23         cout<<name<<" is Dead." <<endl;
 24         system("pause");
 25         playerdeath=1;    // give the label of death value 1
 26     }
 27 }
 28 
 29 // consume heal, irrelevant to job
 30 bool player::useHeal()
 31 {
 32     if(bag.nOfHeal()>0)
 33     {
 34         HP=HP+100;
 35         if(HP>HPmax)        // HP cannot be larger than maximum value
 36             HP=HPmax;        // so assign it to HPmax, if necessary
 37         cout<<name<<" used Heal, HP increased by 100."<<endl;
 38         bag.useHeal();        // use heal
 39         system("pause");
 40         return 1;    // usage of heal succeed
 41     }
 42     else                // If no more heal in bag, cannot use
 43     {
 44         cout<<"Sorry, you don't have heal to use."<<endl;
 45         system("pause");
 46         return 0;    // usage of heal failed
 47     }
 48 }
 49 
 50 // consume magic water, irrelevant to job
 51 bool player::useMW()
 52 {
 53     if(bag.nOfMW()>0)
 54     {
 55         MP=MP+100;
 56         if(MP>MPmax)
 57             MP=MPmax;
 58         cout<<name<<" used Magic Water, MP increased by 100."<<endl;
 59         bag.useMW();
 60         system("pause");
 61         return 1;    // usage of magic water succeed
 62     }
 63     else
 64     {
 65         cout<<"Sorry, you don't have magic water to use."<<endl;
 66         system("pause");
 67         return 0;    // usage of magic water failed
 68     }
 69 }
 70 
 71 // possess opponent's items after victory
 72 void player::transfer(player &p)
 73 {
 74     cout<<name<<" got"<<p.bag.nOfHeal()<<" Heal, and "<<p.bag.nOfMW()<<" Magic Water."<<endl;
 75     system("pause");
 76     HP+=p.bag.nOfHeal();
 77     MP+=p.bag.nOfMW();
 78     // set the character's bag, get opponent's items
 79 }
 80 
 81 // display character's job
 82 void player::showRole()
 83 {
 84     switch(role)
 85     {
 86     case sw:
 87         cout<<"Swordsman";
 88         break;
 89     case ar:
 90         cout<<"Archer";
 91         break;
 92     case mg:
 93         cout<<"Mage";
 94         break;
 95     default:
 96         break;
 97     }
 98 }
 99 
100 
101 // display character's job
102 void showinfo(player &p1, player &p2)
103 {
104     system("cls");
105     cout<<"##############################################################"<<endl;
106     cout<<"# Player"<<setw(10)<<p1.name<<"   LV. "<<setw(3) <<p1.LV
107         <<"  # Opponent"<<setw(10)<<p2.name<<"   LV. "<<setw(3) <<p2.LV<<" #"<<endl;
108     cout<<"# HP "<<setw(3)<<(p1.HP<=999?p1.HP:999)<<'/'<<setw(3)<<(p1.HPmax<=999?p1.HPmax:999)
109         <<" | MP "<<setw(3)<<(p1.MP<=999?p1.MP:999)<<'/'<<setw(3)<<(p1.MPmax<=999?p1.MPmax:999)
110         <<"     # HP "<<setw(3)<<(p2.HP<=999?p2.HP:999)<<'/'<<setw(3)<<(p2.HPmax<=999?p2.HPmax:999)
111         <<" | MP "<<setw(3)<<(p2.MP<=999?p2.MP:999)<<'/'<<setw(3)<<(p2.MPmax<=999?p2.MPmax:999)<<"      #"<<endl;
112     cout<<"# AP "<<setw(3)<<(p1.AP<=999?p1.AP:999)
113         <<" | DP "<<setw(3)<<(p1.DP<=999?p1.DP:999)
114         <<" | speed "<<setw(3)<<(p1.speed<=999?p1.speed:999)
115         <<" # AP "<<setw(3)<<(p2.AP<=999?p2.AP:999)
116         <<" | DP "<<setw(3)<<(p2.DP<=999?p2.DP:999)
117         <<" | speed "<<setw(3)<<(p2.speed<=999?p2.speed:999)<<"  #"<<endl;
118     cout<<"# EXP"<<setw(7)<<p1.EXP<<" Job: "<<setw(7);
119     p1.showRole();
120     cout<<"   # EXP"<<setw(7)<<p2.EXP<<" Job: "<<setw(7);
121     p2.showRole();
122     cout<<"    #"<<endl;
123     cout<<"--------------------------------------------------------------"<<endl;
124     p1.bag.display();
125     cout<<"##############################################################"<<endl;
126 }

运行结果

 

 

 

 

 

标签:string,继承,void,多态,player,int,实验,include,name
From: https://www.cnblogs.com/lc114514/p/16927725.html

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