CSCI 140 Lab 4 -- Finn Payton

///////////////////////////////////////////////////////////////////////////////
// Name:          Finn Payton                                   			 //
// Course:        CSCI 140                                      			 //
// Assignment:    Lab 4                                     			     //
// Description:   ***												 		 //
///////////////////////////////////////////////////////////////////////////////

#include <iostream>
#include <iomanip>
#include <cctype>
using namespace std;

int main()
{
    // 1 inch = 2.54 centimeters
    // 1 foot = 12 inches
    // 1 yard = 3 feet
    // 1 meter = 100 centimeters

    // Variable Declaration
    double userHeight = 0;
    double doorHeight = 0;
    double doorConv = 0; // converts to cm. to preserve user input
    char userHeightUnit;
    char doorHeightUnit;
    string unitLabel;
    bool userHeightCheck = false;
    bool doorHeightCheck = false;

    // Constant Declaration
    const double I_CONV = 2.54; // cm.
    const double F_CONV = 30.48; // cm.
    const double Y_CONV = 91.44; // cm.
    const double M_CONV = 100.00; // cm.

    // Number formatting
    cout << fixed << setprecision(2);

    // Prompting user input
	cout << endl << " Welcome!" << endl << endl;
    cout << " Enter your height, followed by a space, followed by a" << endl;
    cout << " single character for unit of measurement." << endl << endl;
    cout << " (ex. '66 i' for '66 inches')" << endl << endl;
    cout << " Measurements:" << endl;
    cout << " " << setw(62) << setfill ('-') << "" << setfill(' ') << endl;
    cout << "  i = inches, f = feet, y = yards, c = centimeters, m = meters";
    cout << endl << " " << setw(62) << setfill ('-') << "" << setfill(' ');
    cout << endl << endl;

    // User height error checking loop & cm. conversions
    do {

		cout << " ";
        cin >> userHeight;
        cin >> userHeightUnit;

        while (userHeight <= 0){  // Disallows negative input
            cout << endl;
			cout << " Your height must be greater than zero!" << endl << endl;
            cout << " Please re-input your height, followed by a" << endl;
            cout << " single character for unit of measurement." << endl;
            cout << endl << " ";
            cin >> userHeight;
            cin >> userHeightUnit;
        }

		userHeightUnit = toupper(userHeightUnit); // makes uppercase

        switch (userHeightUnit) {
            case 'I':
                cout << endl << " Great, you are " << userHeight;
				cout << " inches tall!";
                userHeight = userHeight * I_CONV;
                userHeightCheck = true;
                break;
            case 'F':
                cout << endl << " Great, you are " << userHeight;
				cout << " feet tall!";
                userHeight = userHeight * F_CONV;
                userHeightCheck = true;
                break;
            case 'Y':
                cout << endl << " Great, you are " << userHeight;
				cout << " yards tall!";
                userHeight = userHeight * Y_CONV;
                userHeightCheck = true;
                break;
            case 'M':
                cout << endl << " Great, you are " << userHeight;
				cout << " meters tall!";
                userHeight = userHeight * M_CONV;
                userHeightCheck = true;
                break;
            case 'C': // centimeter conversion unnecessary
                cout << endl << " Great, you are " << userHeight;
				cout << " centimeters tall!";
                userHeightCheck = true;
                break;
            default:
                cout << endl;
				cout << " Please only enter a unit from the list above.";
            }

		cout << endl << endl;

    } while (userHeightCheck != true);

    // Prompting user input
    cout << " Enter the height of the doorway, followed by a space," << endl;
    cout << " followed by a single character for unit of measurement." << endl;
    cout << " (ex. '4 y' for '4 yards')" << endl << endl;
    cout << " Measurements:" << endl;
    cout << " " << setw(62) << setfill ('-') << "" << setfill(' ') << endl;
    cout << "  i = inches, f = feet, y = yards, c = centimeters, m = meters";
    cout << endl << " " << setw(62) << setfill ('-') << "" << setfill(' ');
    cout << endl << endl;

    // Doorway height error checking loop & cm. conversions
    do {

    	cout << " ";
		cin >> doorHeight;
		cin >> doorHeightUnit;

		doorHeightUnit = toupper(doorHeightUnit); // makes uppercase

        switch (doorHeightUnit) {
            case 'I':
                cout << endl << " Great, the doorway is " << doorHeight;
				cout << " inches tall!";
                doorConv = doorHeight * I_CONV;
                unitLabel = "inches";
                doorHeightCheck = true;
                break;
            case 'F':
                cout << endl << " Great, the doorway is " << doorHeight;
				cout << " feet tall!";
                doorConv = doorHeight * F_CONV;
                unitLabel = "feet";
                doorHeightCheck = true;
                break;
            case 'Y':
                cout << endl << " Great, the doorway is " << doorHeight;
				cout << " yards tall!";
                doorConv = doorHeight * Y_CONV;
                unitLabel = "yards";
                doorHeightCheck = true;
                break;
            case 'M':
                cout << endl << " Great, the doorway is " << doorHeight;
				cout << " meters tall!";
                doorConv = doorHeight * M_CONV;
                unitLabel = "meters";
                doorHeightCheck = true;
                break;
            case 'C': // centimeter conversion unnecessary
                cout << endl << " Great, the doorway is " << doorHeight;
				cout << " centimeters tall!";
                unitLabel = "centimeters";
                doorHeightCheck = true;
                break;
            default:
                cout << endl;
				cout << " Please only enter a unit from the list above.";
            }

		cout << endl << endl;

	} while (doorHeightCheck != true);

    // Calculations for door user height vs. door height
    if (doorConv > userHeight * 1.25){
    	cout << " For a door at " << doorHeight << " " << unitLabel << endl;
    	cout << " you should use STILTS." << endl;
	}
    else if (doorConv <= userHeight * 1.25 && doorConv > userHeight * 1.05){
    	cout << " For a door at " << doorHeight << " " << unitLabel << endl;
    	cout << " you should WALK." << endl;
	}
    else if (doorConv <= userHeight * 1.05 && doorConv > userHeight * 0.65){
    	cout << " For a door at " << doorHeight << " " << unitLabel << endl;
    	cout << " you should DUCK." << endl;
	}
    else if (doorConv <= userHeight * 0.65 && doorConv > userHeight * 0.40){
    	cout << " For a door at " << doorHeight << " " << unitLabel << endl;
    	cout << " you should CRAWL." << endl;
	}
    else if (doorConv <= userHeight * 0.40 && doorConv > userHeight * 0.25){
    	cout << " For a door at " << doorHeight << " " << unitLabel << endl;
    	cout << " you should LIMBO." << endl;
	}
    else if (doorConv <= userHeight * 0.25){
    	cout << " For a door at " << doorHeight << " " << unitLabel << endl;
    	cout << " your path is BLOCKED." << endl;
	}

        return 0;

}