C++ Programming: Write a program that declares a struct to store the data of a f

Question

C++ Programming:

Write a program that declares a struct to store the data of a football player (player’s name, player’s position, number of touchdowns, number of catches, number of passing yards, number of receiving yards, and the number of rushing yards).

Declare an array of 10 components to store the data of 10 football players.

Your program must contain a function to input data and a function to output data. Add functions to search the array to find the index of a specific player, and up-date the data of a player. (You may assume that the input data is stored in a file.) Before the program terminates, give the user the option to save data in a file. Your program should be menu driven, giving the user various choices.

Explanation / Answer

#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
using namespace std;
std::stringstream gstream;
struct footballPlayer
{
   std::string name;
   std::string position;
   std::string number;
   int numOfTouchdowns;
   int numOfCatches;
   int numOfPassingYards;
   int numOfReceivingYards;
   int numOfRushingYards;
};

const int NUM_OF_FOOTBALL_PLAYERS = 10;
int index = 0;

void initialize(footballPlayer players[]);
void inputData(footballPlayer players[]);
void outputData(footballPlayer players[]);
void findPlayerByNumber(footballPlayer players[]);
void findPlayer(footballPlayer players[]);
void updatePlayerStats(footballPlayer players[]);
void showMenu();
void showData(int input, footballPlayer players[]);
void writeToFile(footballPlayer players[]);

int main()
{
   std::cout << "Welcome to My Football Player!" << std::endl;
  
   struct footballPlayer players[NUM_OF_FOOTBALL_PLAYERS];
   initialize(players);
  
   int input;
   while (std::cin)
   {
       showMenu();
       std::cin >> input;
      
       switch (input)
       {
           case 1: inputData(players); break;
           case 2: outputData(players); break;
           case 3: findPlayerByNumber(players); break;
           case 4: findPlayer(players); break;
           case 5: updatePlayerStats(players); break;
           case 6: writeToFile(players); break;
           default: std::cout << "Invalid input" << std::endl;
       }
   }
  
   return 0;
}//end main

void showMenu()
{
   std::cout << "Please select an option from below (press a letter key to exit): " << std::endl;
   std::cout << " 1.) Input Data" << std::endl;
   std::cout << " 2.) Output Data" << std::endl;
   std::cout << " 3.) Search player up by number" << std::endl;
   std::cout << " 4.) Search player up by name" << std::endl;
   std::cout << " 5.) Update player stats" << std::endl;
   std::cout << " 6.) Finish and write to file" << std::endl;
}

void inputData(footballPlayer players[])
{  
   if (index >= 10)
   {
       std::cout << "There is no more room to add players." << std::endl;
       return;
   }
  
   std::cout << "What is the player's name? ";
   std::cin >> players[index].name;
  
   std::cout << "What is the player's position? ";
   std::cin >> players[index].position;
  
   std::cout << "What is the player's number? ";
   std::cin >> players[index].number;
  
   std::cout << "What is the number of touchdowns? ";
   std::cin >> players[index].numOfTouchdowns;

   std::cout << "What is the number of catches? ";
   std::cin >> players[index].numOfCatches;
  
   std::cout << "What is the number of passing yards? ";
   std::cin >> players[index].numOfPassingYards;
  
   std::cout << "What is the number of receiving yards? ";
   std::cin >> players[index].numOfReceivingYards;
  
   std::cout << "What is the number of rushing yards? ";
   std::cin >> players[index].numOfRushingYards;
  
   index++;
}//end inputData

void outputData(footballPlayer players[])
{  
   if (players[0].name.empty())
   {
       std::cout << "There is no data yet!" << std::endl;
   }
  
   std::cout << "This is what you have so far: " << " " << std::endl;
  
   int i;
   std::string output = "";
   for (i = 0; i < NUM_OF_FOOTBALL_PLAYERS; i++)
   {
       if (!players[i].name.empty())
       {
           output += players[i].name + " " + players[i].position + " " + players[i].number + " "
           + std::to_string(players[i].numOfTouchdowns) + " " + std::to_string(players[i].numOfCatches) + " " +
           std::to_string(players[i].numOfPassingYards) +
           " " + std::to_string(players[i].numOfReceivingYards) + " " + std::to_string(players[i].numOfRushingYards) + " ";
           std::cout << output;
           output = "";
       }
   }
   std::cout << std::endl;
}//end outputData

void findPlayerByNumber(footballPlayer players[])
{
   std::string key;
   std::string output = "";
  
   std::cout << "Enter player number: ";
   std::cin >> key;
  
   int i;
   for (i = 0; i < NUM_OF_FOOTBALL_PLAYERS; i++)
   {
       if (players[i].number.compare(key) == 0)
       {
           output += players[i].name + " ";
       }
   }
  
   if (output.empty())
   {
       std::cout << "There is no player of that number!" << std::endl;
   }
   else
   {
       std::cout << "Number: " << key << " is " << output << std::endl;
   }
}//end findPlayersByNumber

void findPlayer(footballPlayer players[])
{
   std::string key;
   std::string output = "";
  
   std::cout << "Enter player name: ";
   std::cin >> key;
  
   int i;
   for (i = 0; i < NUM_OF_FOOTBALL_PLAYERS; i++)
   {
       if (players[i].name.compare(key) == 0)
       {
           output += players[i].number + " ";
       }
   }
  
   if (output.empty())
   {
       std::cout << "There is no player of that name!" << std::endl;
   }
   else
   {
       std::cout << "Player " << key << " is number " << output << std::endl;
   }
}//end findPlayer

void updatePlayerStats(footballPlayer players[])
{
   if (players[0].name.empty())
   {
       std::cout << "There's no data to update!" << std::endl;
       return;
   }
  
   int input;
  
   std::cout << "What player do you want to update (Press the number)? " << std::endl;
  
   int i;
   for (i = 0; i < NUM_OF_FOOTBALL_PLAYERS; i++)
   {
       if (!players[i].name.empty())
       {
           std::cout << i + 1 << ". " << players[i].name << std::endl;
       }
   }
  
   std::cin >> input;
  
   int choice;
   std::cout << "Which statistic/info do you want to change (Press the number. Press 0 to stop editing)? " << std::endl;
   showData(input - 1, players);
   std::cin >> choice;
  
   std::string info;
   int stat;
   while (choice != 0)
   {
       std::cout << "What do you want to change about this? ";
       switch (choice)
       {
           case 1: std::cin >> info; players[input - 1].name = info; break;
           case 2: std::cin >> info; players[input - 1].position = info; break;
           case 3: std::cin >> info; players[input - 1].number = info; break;
           case 4: std::cin >> stat; players[input - 1].numOfTouchdowns = stat; break;
           case 5: std::cin >> stat; players[input - 1].numOfCatches = stat; break;
           case 6: std::cin >> stat; players[input - 1].numOfPassingYards = stat; break;
           case 7: std::cin >> stat; players[input - 1].numOfReceivingYards = stat; break;
           case 8: std::cin >> stat; players[input - 1].numOfRushingYards = stat; break;
           default: std::cout << "Invalid input";
       }
      
       std::cout << "Which statistic/info do you want to change (Press the number. Press 0 to stop editing)? " << std::endl;
       showData(input - 1, players);
       std::cin >> choice;
   }
}//end updatePlayerStats

void showData(int input, footballPlayer players[])
{
   std::cout << "1. " << players[input].name << std::endl;
   std::cout << "2. " << players[input].position << std::endl;
   std::cout << "3. " << players[input].number << std::endl;
   std::cout << "4. " << players[input].numOfTouchdowns << std::endl;
   std::cout << "5. " << players[input].numOfCatches << std::endl;
   std::cout << "6. " << players[input].numOfPassingYards << std::endl;
   std::cout << "7. " << players[input].numOfReceivingYards << std::endl;
   std::cout << "8. " << players[input].numOfRushingYards << std::endl;
}

void initialize(footballPlayer players[])
{
   int i;
   for (i = 0; i < NUM_OF_FOOTBALL_PLAYERS; i++)
   {
       players[i].name = "";
   }
}

void writeToFile(footballPlayer players[])
{
   std::ofstream outData;
  
   int input;
   std::cout << "Are you sure you want to make the file now? If yes, then you won't be able to edit anymore (1 for yes. 2 for no). ";
   std::cin >> input;
  
   if (input == 2)
   {
       return;
   }
  
   outData.open("Football Players.txt");
  
   int i;
   for (i = 0; i < NUM_OF_FOOTBALL_PLAYERS; i++)
   {
       if (!players[i].name.empty())
       {
           outData << players[i].name + " ";
           outData << players[i].position + " ";
           outData << players[i].number + " ";
           outData << std::to_string(players[i].numOfTouchdowns) + " ";
           outData << std::to_string(players[i].numOfCatches) + " ";
           outData << std::to_string(players[i].numOfPassingYards) + " ";
           outData << std::to_string(players[i].numOfReceivingYards) + " ";
           outData << std::to_string(players[i].numOfRushingYards) + " ";
           outData << " ";
       }
   }
  
   outData.close();
}

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