/**
 * Author: Josiah Yoder et al.
 * Class: SE1011-011
 * Date: 10/21/13 1:20 AM
 * Lesson: Week 7, Day 1
 */

public class Complex011_10_2 {
    private double real;
    private double imaginary;
    public static final double MY_CONSTANT = 5.0;
    public static int numberOfInstances = 0;

    public Complex011_10_2() {
        real = 0;
        imaginary = 0;
        numberOfInstances = numberOfInstances + 1;
    }

    public Complex011_10_2(double real, double imaginary) {
        this.real = real;
        this.imaginary = imaginary;
    }

    public Complex011_10_2(double real) {
//        System.out.println("the double one");
        this(real, 0);
    }

    public Complex011_10_2(long real) {
        this(real, 0);
//        System.out.println("the long one");
    }

    public Complex011_10_2(Complex011_10_2 other) {
        this(other.real, other.imaginary);
    }


    public Complex011_10_2 add(Complex011_10_2 other) {
        Complex011_10_2 result = new Complex011_10_2();

        result.real = this.real + other.real;
        result.imaginary = this.imaginary + other.imaginary;
        return result;
    }

    public Complex011_10_2 add(double real) {
        return add(new Complex011_10_2(real,0));

//        Complex011_10_2 result = new Complex011_10_2();
//        result.real = this.real + real;
//        result.imaginary = this.imaginary;
//        return result;
    }

    /*
     * Arithmetic inverse (aka -c)
     */
    public Complex011_10_2 inverse() {
        Complex011_10_2 result = new Complex011_10_2();

        result.real = -this.real;
        result.imaginary = -this.imaginary;
        return result;
    }

    /*
     * Subtract the other from this
     * this - other
     */
    public Complex011_10_2 subtract(Complex011_10_2 other) {
        // Complex011_10_2 result = new Complex011_10_2(); // unused object

        return this.add(other.inverse());
//        return add(other.inverse()); // alternative.  Not as clear in this case.
    }

    /*
 * Add an imaginary number to the complex number
 * imagineN -- "b" in the expression b*i that represents the imaginary number
 */
    public void incrementReal(double realN) {
        real = realN + real;
    }


    /*
     * Add an imaginary number to the complex number
     * imagineN -- "b" in the expression b*i that represents the imaginary number
     */
    public void incrementImaginary(double imagineN) {
        // need a & b
        // What do we have?
        // this.real;
        // this.imaginary;
        imaginary = imagineN + imaginary;
    }

    // Return to Chapter 7
    public void swap(Complex011_10_2 other) {
//        other.real;
//        this.real;

        double temp;

        temp = other.real;
        other.real = this.real;
        this.real = temp;

        temp = other.imaginary;
        other.imaginary = this.imaginary;
        this.imaginary = temp;

        // Assign a to b
        //   b = a;
        // Assign a to be b
        //   a = b;

    }

    public String toString() {
        return "("+real+", "+imaginary+")";
    }

    // TODO: Implement hashCode as well.
    public boolean equals(Object obj) {
        Complex011_10_2 other = (Complex011_10_2) obj;
        System.out.println("This: "+this);
        System.out.println("other: " + other);
        final double threshold = 0.001;
        return Math.abs(this.real-other.real) < threshold
               && Math.abs(this.imaginary-other.imaginary) < threshold;
    }

    public Complex011_10_2 incrementALot(Complex011_10_2[] others) {
        // TODO:
        return null;
    }

    public double getReal(){
        return real;
    }
}