/***************************************************************** Problem: Game data to be saved in a file @Manual Written by: Devender Mahajan Date: 11-June-2017 ******************************************************************/ #include #include using namespace std; class Player{ private: int _level; int _health; int _progress; public: Player(){ //default Values _level=1; _health=100; _progress=0; } Player(int level, int health, int progress){ _level = level; _health = health; _progress = progress; } //getter and setter for level int Level(void){ return _level; } void Level(int level){ _level = level; } //getter and setter for health int Health(void){ return _health; } void Health (int health){ _health = health; } //getter and setter for progress int Progress (void){ return _progress; } void Progress (int progress){ _progress = progress; } //Changes in status //Level void LevelUp (){ if (Level()<20){ _level++; }else{ Level(20); //Maximum Level } } //health up and down void HealthUp (){ if (Health()<2000){ _health +=10; }else{ Health(2000); //Maximum Level } } void HealthDown(){ if (Health()>0){ _health -=10; }else{ Health(0); //Maximum Level } } //progress void Progresses(){ if (Progress()<100){ _progress++; }else{ if (Progress()== 100){ Progress(0); LevelUp(); } } } //Current Status void currentStatus(){ cout<<"Level - "<>l; //Level cout<<"Enter Health: ";cin>>h; //Health cout<<"Enter Progress: ";cin>>p; //Progress player.Level(l); player.Progress(p); player.Health(h); } //Choices for user int Menu(){ int ch; cout<<"Select Operation\n"; cout<<"1. Add new record\n"; cout<<"2. Update a record\n"; cout<<"3. Show Records\n"; cout<<"4. Exit\n\n"; cout<<"Enter your choice: "; cin>>ch; return ch; } int main (void){ // File object fstream gameData; Player player; // Opened file in binary mode with add at end, reading and writing mode gameData.open("game.dat",ios::ate|ios::in|ios::out|ios::binary); gameData.seekg(0,ios::beg); //Places pointer to the start of file if (!gameData){ //File empty or not exists cerr<<"Failed to open/create file"; return -1; } do{ //system("cls"); int ch = Menu(); if (ch < 1 || ch > 4){ cerr<<"Invalid choice. Choose between 1 and 5\n"; continue; } if (ch==4) break; switch (ch){ case 1: //Add new record getData(player); //Moves to the end if file gameData.seekg(0, ios::end); //Write new record at the end gameData.write((char *) &player, sizeof(player)); //Clear all file flags gameData.clear(); break; case 2: //Moves get pointer to eof gameData.seekg(0,ios::end); int len, records; //Return current byte position of the pointer len = gameData.tellg(); //Total no of records records = len / sizeof(player); int x; cout<<"Select Record no to modify: (1 to"<>x; if (x<1 || x>records){ cout<<"Invalid Record\n"; return -1; } //Calculates actual byte position of the record number entered. int location; location = (x-1) * sizeof(player); //clears file flags if (gameData.eof()) gameData.clear(); //set put point at the given byte position gameData.seekp(location); //reading updated data from use cout<<"Enter new values for the record:\n"; getData(player); //updating current record gameData.write((char *) &player, sizeof(player)); break; case 3: //List all record in the file int count = 1; int dummy; gameData.seekg(0, ios::beg); while (true){ //to stop displaying last record twice if (!gameData.read((char *) &player, sizeof(player))) break; cout<<"Player#"<

game.cpp