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/**
 * This class simulates an automobile's odometer and
 * fuel guage operations. A person can drive the car,
 * add fuel to the car.
 * 
 * @author Chuck Bates  
 * @version 02.01.2010
 */
public class Auto
{
    // instance variables - replace the example below with your own
    private int odometer;
    private double fuelGuage;
    private int tankCapacity;
    private int mpg;
    private int initMiles;
    private double fuelInTank;
    private int distance;
    private int trip;

    /**
     * Constructor for objects of class Auto
     */
    public Auto()
    {
        // initialise instance variables
        odometer = 0;
        fuelGuage = 0;
        tankCapacity = 15;
        mpg = 25;
        System.out.println("A simple automobile for Chuck has been initialized ");
    }
    
    
    /**
     * constructs an automobile with values of 25mpg 
     * however much gas the person starts with as long
     * as this is less than or equal to the tanks limit
     */
    public Auto(int initMiles, double initFuel)
    {
        
            mpg = 25; 
            tankCapacity = 15;
        if(initFuel <= tankCapacity)
        {
            fuelInTank = initFuel;
            fuelGuage = initFuel;
            odometer = initMiles;
            fuelGuage = initFuel;            
            mpg = 25;
            System.out.println("A custom automobile has been initialized");
        }else{
            System.out.println("Instance not created initFuel exceeds the tank capacity");
        }
    }
                
        public double getfuelGuage(){
            return fuelGuage;
        }
    
        public void addFuel(double amtToAdd)
        {
          if (tankCapacity >= amtToAdd + fuelGuage  ){
              fuelGuage = amtToAdd +  fuelGuage;
              System.out.println("you added " + amtToAdd + " gallons to your tank \n and now have " 
              + fuelGuage + " gallons in your tank");
            }else{
            System.out.println("Can't add " + amtToAdd + " gallons, Your tank will overflow");
        }
        }
            
        public void drive(int distance)
        {
        if(distance / mpg < fuelGuage){
            System.out.println("You drove " + distance + " miles");
            trip = distance;
            fuelGuage = fuelGuage - distance / mpg;
            odometer = odometer + distance;
            
        }else{
            
            System.out.println("You don't have enough fuel to go " + distance + " miles");
        } 
        }
        
        public void printCurrentStatus()
        {
            System.out.println("Current Status");
            System.out.println("===========================================================");
            System.out.println("odometer \t : " + odometer ); 
            System.out.println("fuel guage \t : " + fuelGuage);
            System.out.println("===========================================================");
        }
            
        
        /**
         * test cases here
         */
        
        public static void testing()
    {
        Auto myCar = new Auto();  // instantiate an automobile object named myCar
//       
        myCar.addFuel(12);
        myCar.drive(100);
        myCar.printCurrentStatus();        
        myCar.drive(100);
        myCar.printCurrentStatus();
        myCar.drive(150);
        myCar.printCurrentStatus();        
        myCar.addFuel(13);
        myCar.printCurrentStatus();
        myCar.addFuel(10);
        myCar.printCurrentStatus();
//
        Auto yourCar = new Auto(1000, 16); // instantiate an automobile object named yourCar     
        Auto herCar = new Auto(1000, 10);  // instantiate an automobile object named herCar
        herCar.printCurrentStatus();        
    }       
}