Game

//header
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#include <ctime>
#include <conio.h>
using namespace std;

//function init
int getWhatTheyWant();
void displayItems(int);
void addItem(string,double);
string getHighScore();
void setHighScore(int);

//main function
int main(){
    int whatTheyWant;
    whatTheyWant = getWhatTheyWant();
    while(whatTheyWant!=9){
        switch(whatTheyWant) {
            case 1:
            displayItems(1);
            break;
            case 2:
            displayItems(2);
            break;
            case 3:
            displayItems(3);
            break;
            case 4:
            {
                string itemName;
                double itemPower;
                cout << "Enter item name" << endl;
                cin >> itemName;
                cout << "Enter item power" << endl;
                cin >> itemPower;
                addItem(itemName,itemPower);
            }
            break;
            case 5:
//the actual game

{
srand(time(0));
int health=100;
string fightName;
double fightPow;
int score=0;
ifstream objectFile("objects.txt");
string objName;
double objPow;
int objNum=0;
while(objectFile >> objName >> objPow) {
    objNum++;
}
if (objNum==0) {
    cout << endl;
    cout << "You really want to fight in an empty dungeon?" << endl;
    cout << endl;
    break;
}
cout << "Monsters in dungeon: " << objNum << endl;
getch();
while(health>0){
    cout<<"Health: " << health<<endl;
    cout<<"Score: " << score<<endl;
    getch();
    int monster=1+(rand()%objNum);
    int monster2=0;
    ifstream objectFile("objects.txt");
    while(objectFile >> objName >> objPow) {
        monster2++;
        if (monster2==monster){
            fightName=objName;
            fightPow=objPow;
        }
    }
    cout << "a(n) " << fightName << " is in the next dungeon room."<<endl;
    if(fightPow==0){
    cout << "the " << fightName << " does nothing."<<endl;
    }
    if(fightPow>0){
    cout << "the " << fightName << " heals you for "<<fightPow<<endl;
    health+=fightPow;
    }
    if(fightPow<0){
    cout << "the " << fightName << " hits you for "<<fightPow<<endl;
    health+=fightPow;
    }
    score+=1;
    getch();
}
cout << "Game over" << endl;
getch();
cout << "Final Score: " << score << endl;
setHighScore(score);
}

//end of actual game

            break;
            case 6:
            {
            cout << endl;
            ofstream objectFile("objects.txt");
            objectFile << "";
            objectFile.close();
            cout << "Monsters cleared!" << endl;
            }
            break;
            case 7:
            cout <<endl;
            cout <<"Highscore: " << getHighScore() << endl;
            cout <<endl;
            break;
            case 8:
            {
            ofstream highWrite("highscore.txt");
            highWrite << 0;
            highWrite.close();
            cout << "\nHighscore cleared!\n" << endl;
            }
            break;
            default:
            cout << "Please enter a valid input!" << endl;
            break;
        }
        whatTheyWant = getWhatTheyWant();
    }
    cout << endl << "Thanks for playing!" <<endl;
    return 0;
}

//getwhattheywant function
int getWhatTheyWant(){
    int choice;
    cout << endl;
    cout << "Enter what you want: " << endl;
    cout << "1- Plain Monsters" << endl;
    cout << "2- Helpful Monsters" << endl;
    cout << "3- Harmful Monsters" << endl;
    cout << "4- Add Monster" << endl;
    cout << "5- Play Game" << endl;
    cout << "6- Clear Monsters" << endl;
    cout << "7- Show Highscore" << endl;
    cout << "8- Clear Highscore" << endl;
    cout << "9- Quit Game" << endl;
    cout << endl;
    cin >> choice;
    return choice;
}

//displayitems function
void displayItems(int x){
    cout << endl;
    ifstream objectFile("objects.txt");
    string name;
    double power;
    switch(x){
        case 1:
        while(objectFile >> name >> power) {
            if(power==0) {
                cout << name << " " << power << endl;
            }
        }
        break;
        case 2:
        while(objectFile >> name >> power) {
            if(power>0) {
                cout << name << " " << power << endl;
            }
        }
        break;
        case 3:
        while(objectFile >> name >> power) {
            if(power<0) {
                cout << name << " " << power << endl;
            }
        }
        }
    }
//additem function
void addItem(string n, double x) {
    ofstream objectAddFile("objects.txt",ios::app);
    objectAddFile << n << " " << x << endl;
    objectAddFile.close();
}

//gethighscore function
string getHighScore() {
    ifstream highFile("highscore.txt");
    string highScore;
    getline(highFile,highScore);
    return highScore;
    highFile.close();
}

//sethighscore function
void setHighScore(int x) {
ifstream highFile("highscore.txt");
    string highScore;
    getline(highFile,highScore);
    highFile.close();
    int value = atoi(highScore.c_str());
    if (x>value){
        ofstream highWrite("highscore.txt");
        highWrite << x;
        highWrite.close();
        cout << "You made the new highscore!" << endl;
    }
}