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// BlankConsoleLab.cpp : This file contains the 'main' function. Program execution begins and ends there.
//
#include <iostream>
#include <iomanip>
#include <string>
#include <cmath>
using namespace std;
float tempCelsius, windCelsius;
float tempFahrenheit, windFahrenheit;
float windSpeed;
// Constants for the range of acceptable temperatures and wind speed.
const float minF = -80.0, maxF = 121.0;
const float minC = -62.0, maxC = 49.5;
const float minW = 0, maxW = 231;
float ConvertTemperature(float temperature, char initialSystem) {
// If initialSystem is 'C', temperature is converted into fahrenheit. If initialSystem is 'F', temperature is converted into celsius.
float convertedTemp;
switch(initialSystem) {
case 'C':
// Converting celsius to fahrenheit, return the result.
convertedTemp = (temperature * 1.8) + 32.0;
return convertedTemp;
case 'F':
// Converting fahrenheit to celsius, return the result.
convertedTemp = (temperature - 32.0) / 1.8;
return convertedTemp;
}
}
bool CheckWindSpeed(float& input) {
// Checks to see if the value entered is between the minimum and maximum wind speeds.
if (input < minW || input > maxW) {
cout << "\nInvalid wind speed. Please enter a number between 0 and 231" << endl;
return false; // Returns false if the value is beyond or below the range.
}
else return true;
}
float GetWindChill() {
// Simply calculates the wind chill in fahrenheit, and converts it to celsius using a previous function
float windChill;
windChill = 35.74 + (0.6215 * tempFahrenheit) + (pow(windSpeed, 0.16) * ((0.4275 * tempFahrenheit) - 35.75));
return windChill; // Returns the wind chill based on what the user entered before the function has been called. Only outputs as fahrenheit.
}
int main()
{
char choice = 'Y';
while (choice == 'Y') {
cout << "Please enter a temperature between -80 to 121 degrees fahrenheit, or -62 and 49.5 degrees celsius." << endl;
cout << "Example entries: -32.3 F, 27.8 C\n" << endl;
float tempInput;
char tempSystem;
bool validEntries = false;
// Taking input from the user until they give a valid entry.
// A valid entry should be a number and the character C for celsius or F for fahrenheit.
do {
cin >> tempInput >> tempSystem;
if (tempSystem == 'C') {
if (tempInput < minC || tempInput > maxC) {
cout << "\nTemperature in celsius must be between -62 and 49.5 degrees. Please try again." << endl;
}
else {
validEntries = true;
tempCelsius = tempInput;
tempFahrenheit = ConvertTemperature(tempInput, 'C');
}
}
else if (tempSystem == 'F') {
if (tempInput < minF || tempInput > maxF) {
cout << "\nTemperature in fahrenheit must be between -80 and 121 degrees. Please try again." << endl;
}
else {
validEntries = true;
tempFahrenheit = tempInput;
tempCelsius = ConvertTemperature(tempInput, 'F');
}
}
else {
cout << "\nInvalid temperature system. Please try again with C or F as your unit." << endl;
}
} while (validEntries == false);
cout << "\nNext, enter a wind speed between 0 and 231mph. You do not need to include a unit." << endl;
// validEntries is just a boolean that's getting reused.
validEntries = false;
do {
cin >> windSpeed;
validEntries = CheckWindSpeed(windSpeed); // If the user's input is between the minium and maximum wind speeds, this will return true.
} while (validEntries == false);
// Setting the wind chill values.
windFahrenheit = GetWindChill();
windCelsius = ConvertTemperature(windFahrenheit, 'F');
int colWidth = 20;
cout << "\nConversions for " << tempInput << tempSystem << " with wind speed " << windSpeed << "MPH." << endl;
// Printing the table.
cout << setprecision(2) << fixed << left << setw(20);
cout << setw(colWidth) << "\nCelsius" << setw(colWidth) << "Fahrenheit" << setw(colWidth) << "Wind Speed" << setw(colWidth) << "Wind Chill (F)" << setw(colWidth) << "Wind Chill (C)" << endl;
cout << setw(colWidth) << tempCelsius << setw(colWidth) << tempFahrenheit << setw(colWidth) << windSpeed << setw(colWidth) << windFahrenheit << setw(colWidth) << windCelsius << endl;
cout << "\nIf you would like to input another set of data, please enter 'Y'" << endl;
cin >> choice;
}
return 0;
}
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