/* Name: Samuel Kanfer
Date: 02-21-22
Assignment: Homework 5
Due Date: 02-21-22
About this project: This program will calculate the NFL passer rating for 2 quarterbacks using the real formula used in the National Football League.
Assumptions: (write any assumptions made here (ex: assumes correct user input))
All work below was performed by Samuel Kanfer */
#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main()
{
// Declaring function getPasserRating
float getPasserRating(int attempts, int completions, int yards, int touchdowns, int interceptions);
int timesRan = 0;
cout<<"\nWelcome to the NFL Quarterback Passer Rating Calculator!\n";
// Declaring variables
int attemptsA, completionsA, yardsA, touchdownsA, interceptionsA;
// Inputting for Player A
beginning:
timesRan++;
cout<<"\nEnter single game information for Player A:\n";
cout<<"Attempts: ";
cin>>attemptsA;
cout<<"Completions: ";
cin>>completionsA;
cout<<"Passing Yards: ";
cin >> yardsA;
cout<<"Touchdowns: ";
cin>>touchdownsA;
cout<<"Interceptions: ";
cin>>interceptionsA;
// Declaring variables
int attemptsB, completionsB, yardsB, touchdownsB, interceptionsB;
// Inputting for Player B
cout << "\nEnter single game information for Player B:\n";
cout << "Attempts: ";
cin >> attemptsB;
cout << "Completions: ";
cin >> completionsB;
cout << "Passing Yards: ";
cin >> yardsB;
cout << "Touchdowns: ";
cin >> touchdownsB;
cout << "Interceptions: ";
cin >> interceptionsB;
// Calling function getPasserRating for both player A and B
float passer_ratingA, passer_ratingB;
passer_ratingA = getPasserRating(attemptsA, completionsA, yardsA, touchdownsA, interceptionsA);
passer_ratingB = getPasserRating(attemptsB, completionsB, yardsB, touchdownsB, interceptionsB);
// Displaying player A and player B passer rating
cout << "\nPlayer A's single game passer rating: " <<fixed<<setprecision(1)<<passer_ratingA;
cout << "\nPlayer B's single game passer rating: " <<fixed<<setprecision(1)<<passer_ratingB;
// Checking and displaying which player passer rating is higher and by what difference
if (passer_ratingA > passer_ratingB) {
cout << "\nPlayer A was better than Player B by a differnce of "<<passer_ratingA-passer_ratingB;
}
else if (passer_ratingB > passer_ratingA){
cout << "\nPlayer B was better than Player A by a differnce of "<<passer_ratingB-passer_ratingA;
}
else {
cout << "\nPlayer A and B have the same rating!";
}
// Checking both player attained perfect score or not
if (passer_ratingA > 158.33) {
cout << "\n\nPlayer A had a PERFECT passer rating.";
}
if (passer_ratingB > 158.33) {
cout << "\n\nPlayer B had a PERFECT passer rating.";
}
char repeatResponse;
cout << "\n\nWould you like to compare another pair of players? (Y or N) ";
cin >> repeatResponse;
if (repeatResponse == 'y' || repeatResponse == 'Y') {
goto beginning;
}
else if (repeatResponse == 'n' || repeatResponse == 'N') {
if (timesRan == 1) {
cout << "You compared " << timesRan << " pair of players.";
}
else {
cout << "You compared " << timesRan << " pairs of players.";
}
}
else {
cout << "Invalid entry. Exiting program...";
}
}
// Defining getPasserRating function
float getPasserRating(int attempts, int completions, int yards, int touchdowns, int interceptions) {
// Declaring variables
float a, b, c, d;
// Assigning variables to complete math equations
a = ((completions/float(attempts)) - 0.3) * 5;
if ( a > 2.375)
{a = 2.375;}
if ( a < 0) {a = 0;}
b = ((yards/float(attempts)) - 3) * 0.25;
if ( b > 2.375) {b = 2.375;}
if ( b < 0) {b = 0;}
c = (touchdowns/float(attempts)) * 20;
if ( c > 2.375) {c = 2.375;}
if ( c < 0) {c = 0;}
d = 2.375 - ((interceptions/float(attempts)) * 25);
if ( d > 2.375) {d = 2.375;}
if ( d < 0) {d = 0;}
// Calculating passer rating
float passer_rating;
passer_rating = ((a+b+c+d)/6) * 100;
return passer_rating;
}
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