/*
 * Andrei Florea - CST 116 - Lab 1 (Part 1 and Part 2) - Learning input, output, if statements, loops, simple
 * calculations
 *
 * The purpose of this program is to take input regarding kite specifications and output
 * if the kite is efficient at flying or if it is able to fly.
 *
 */

#include <iostream>

using namespace std;

using std::cout;
using std::cin;
using std::endl;

int main()
{
    float width = 0;
    float length = 0;
    float area, ratio;
    double gravitational_pull;

    // This will take in input for width and length in the range of 1, 400 inclusive. If it's outside the range,
    // then the loop will repeat until given the correct values.
    while(!(width <= 400 && width >= 1 && length <= 400 && length >= 1)) {
        cout << "Please only enter WIDTH and LENGTH between 1 - 400" << endl;

        cout << "Please enter the WIDTH of your kite in centimeters (decimals are OK): ";
        cin >> width;

        cout << "Please enter the LENGTH of your kite in centimeters (decimals are OK): ";
        cin >> length;
    }
    cout << "Width: " << width << " CM" <<" | Length: " << length << " CM" << endl;

    area = (width * length) / 2;
    area /= 10000;  // Converts the area from square centimeters to square meters

    cout << "Area (in square meters): " << area << " M^2" << endl;

    const float mass = (135 * area) / 1000;  // Finds the total mass of the kite.
    cout << "If your kite is using a medium weight fabric (135g/sq meter), "
            "it is calculated to weigh: " << mass << " kg/meter^2"
            << endl;

    gravitational_pull = mass * 9.8;
    cout << "Gravitational pull on your kite is: " << gravitational_pull << " (mass * 9.8 N/kg)" << endl;


    ratio = width / length;  // Finds aspect ratio of kite
    if(ratio >= 1){
        cout << "Warning: a lower aspect ratio would provide more stability." << endl;
        cout << "Current aspect ratio: " << ratio << " (width / length)"<< endl;
    }
}