Class Mat2

src/main/java/field/linalg/Mat2.java:46–1461

Contains the definition of a 2x2 Matrix of doubles, and associated functions to transform it. The matrix is column-major to match OpenGL's interpretation, and it looks like this: m00 m10 m01 m11 @author Marc Downie (edited extensively from JOML project)

 * @author Marc Downie (edited extensively from JOML project)
 */
public class Mat2 implements Externalizable, Supplier<Mat2>, Mutable, Serializable_safe {

	private static final long serialVersionUID = 1L;

	public double m00, m10;
	public double m01, m11;

	/**
	 * Create a new {@link Mat2} and initialize it to {@link #identity() identity}.
	 */
	public Mat2() {
		super();
		identity();
	}

	/**
	 * Create a new {@link Mat2} and initialize it with the values from the given matrix.
	 *
	 * @param mat the matrix to initialize this matrix with
	 */
	public Mat2(Mat2 mat) {
		m00 = mat.m00;
		m01 = mat.m01;
		m10 = mat.m10;
		m11 = mat.m11;
	}

	/**
	 * Create a new {@link Mat2} and make it a copy of the upper left 3x3 of the given {@link Mat4}.
	 *
	 * @param mat the {@link Mat4} to copy the values from
	 */
	public Mat2(Mat4 mat) {
		m00 = mat.m00;
		m01 = mat.m01;
		m10 = mat.m10;
		m11 = mat.m11;
	}

	/**
	 * Create a new {@link Mat2} and initialize its elements with the given values.
	 *
	 * @param m00 the value of m00
	 * @param m01 the value of m01
	 * @param m10 the value of m10
	 * @param m11 the value of m11
	 */
	public Mat2(double m00, double m01, double m10, double m11) {
		this.m00 = m00;
		this.m01 = m01;
		this.m10 = m10;
		this.m11 = m11;
	}

	/**
	 * Set the values in this matrix to the ones in m.
	 *
	 * @param m the matrix whose values will be copied