HW4. Input Conditioning for an Aircraft Simulator

Devise a program to takes user inputs for a flight simulator and checks their validity until prompted to exit.

Given Variables:
1) char menuChoice -- Input by user. Allowable options defined in the following table:
'A' -> increase velocity
'B' -> decrease velocity
'C' -> increase altitude
'D' -> decrease altitude
'E' -> increase velocity and altitude
'F' -> decrease velocity and altitude
'0' -> exit
2) double velocityChange -- Input by user. Allowable range is 0.1 to 100.0
3) double altitudeChange -- Input by user. Allowable range is 200.0 to 10000.0
4) double currentVelocity -- Internal value. Allowable range is 0.0 to 650.0 and initial condition is 0.0
5) double currentAltitude -- Internal value. Allowable range is -200.0 to 40000.0 and initial condition is 1000.0

Note: ensure your program provides protection against mishandling of user and program variables (remember scope and safety)

Write main and the functions for the following actions to take user input and continuously adjust velocity and altitude until the user exits or a fault condition occurs:
1) Handle user inputs for the following variables: char menuChoice, double velocity, double altitude. If no valid input choice, keep asking until one is provided.
2) Check validity of user velocity input and return new currentVelocity based on increase/decrease as appropriate.  Exit with a message if user input violates the currentVelocity range.
3) Check validity of user altitude input and return new currentAltitude based on increase/decrease as appropriate.  Exit with a message if user input violates the currentAltitude range.

If the user chooses to exit provide a message to that effect.  For all exit cases print the currentVelocity and current Altitude (ensuring the fault condition was not applied).

int main()
{
   cout << "To increase velocity, press A. \n";
   cout << "To decrease velocity, press B. \n";
   cout << "To increase altitude, press C. \n";
   cout << "To decrease altitude, press D. \n";
   cout << "To increase velocity and altitude, press E. \n";
   cout << "To decrease velocity and altitude, press F. \n";
   cout << "To exit, press 0. \n";

while( velocityChange < 0.1 || velocityChange > 100){
      cin >> velocityChange;
}

while ( altitudeChange < 200.0 || altitudeChange > 10000.0){
     cin >> altitudeChange;
}
while ( currentVelocity < 0.0 || currentVelocity > 650.0){
     cin >> currentVelocity;
}
while ( currentAltitude < -200.0 || currentAltitude > 40000.0){
     cin >> currentAltitude;
}

double velocityChange;
double altitudeChange;
double currentVelocity;
double currentAltitude;

double velocityChange, altitudeChange, currentVelocity, currentAltitude;

char menuChoice

cin >> menuChoice; // tell the user to input a letter

switch(menuChoice){
case 'A' :
//enter code here to increase velocity
// do this for the rest of the letters, continue with case 'B'
// for '0', do case '0': exit(0); (i think you need to put an exit message.)

default:
cout << "Error, please enter the correct key" << endl;
}

// do the math from the other variables here

case A:
                      velocityChange = velocity + currentVelocity;
                      break;
                 Case B:
                      velocityChange = velcoity - currentVelocity;
                      break;
                 Case C:
                      altitudeChange = altitude + currentAltitude;
                      break;
                 Case D:
                      altitudeChange = altitude - currentAltitude;
                      break;

#include <iostream>
using namespace std;

float currentVelocity;
float velocityChange;
float velocity = currentVelocity + velocityChange;

int main()
{
   double velocityChange;
   double altitudeChange;
   double currentVelocity = 0.0;
   double currentAltitude = 1000.0;
   
   
char menuChoice;
  cout << "To increase velocity, press A. \n";
  cout << "To decrease velocity, press B. \n";
  cout << "To increase altitude, press C. \n";
  cout << "To decrease altitude, press D. \n";
  cout << "To increase velocity and altitude, press E. \n";
  cout << "To decrease velocity and altitude, press F. \n";
  cout << "To exit, press 0. \n";
  cin >> menuChoice;
  cout << '\n';
         
switch(menuChoice){

                 case 'A':
                      cout << "Enter a velocity: ";
                      cin >> velocity;
                      velocityChange = currentVelocity + 1;
                      cout << endl;
                      break;

#include <iostream>
using namespace std;

int main()
{
  double velocityChange = 0;
  double altitudeChange = 0;
  double currentVelocity = 0.0;
  double currentAltitude = 1000.0;
 
char menuChoice;

while(1){
 cout << "To increase velocity, press A. \n";
 cout << "To decrease velocity, press B. \n";
 cout << "To increase altitude, press C. \n";
 cout << "To decrease altitude, press D. \n";
 cout << "To increase velocity and altitude, press E. \n";
 cout << "To decrease velocity and altitude, press F. \n";
 cout << "To exit, press 0. \n";
 
  cin >> menuChoice;
 cout << '\n';
     
 
switch(menuChoice){

                case 'A':
                     cout << "Increase velocity by: ";
      while(velocityChange <= 0.1 || velocityChange >= 100.0){
      cin >> velocityChange;
      }
      if( currentVelocity + velocityChange > 650.0) {// check before doing the affectation so it doesn't go over
      cout << "Error, velocity too high" << endl; exit(0);}

                     currentVelocity += velocityChange; // this is the same thing as currentVelocity = currentVelocity + velocityChange
                     cout << endl;
      velocityChange = 0; // place it back to 0 so the user can input another value
      cout <<  currentVelocity << " - current velocity" << endl; // debugging, remove this after
                     break;

   case 'B':
                     cout << "Decreases velocity by: ";
      while(velocityChange <= 0.1 || velocityChange >= 100.0){
      cin >> velocityChange;
      }
      if( currentVelocity - velocityChange < 0.0){
      cout << "Error, velocity too low" << endl; exit(0);}

                     currentVelocity -= velocityChange; // this is the same thing as currentVelocity = currentVelocity - velocityChange
                     cout << endl;
      velocityChange = 0;
      cout <<  currentVelocity << " - current velocity" << endl; // debugging, remove this after
                     break;

      // do this for the others, make sure to put the correct ranges

      // for all places where you put exit(0); do a cout for currentVelocity and currentAltitude
 }
}
}

case 'A':
                      cout << "Increase velocity by: ";
                      while(velocityChange <= 0.1 || velocityChange >= 100.0){
                      cin >> velocityChange;
                      }
                      if(currentVelocity + velocityChange > 650.0)
                      {
                      cout << "Error, velocity too high" << endl; exit(0);
                      }
                           currentVelocity += velocityChange;
                           cout << endl;
                      velocityChange = 0;
                      cout << currentVelocity << " - current velocity" << endl;
                      break;