src/main/java/eu/svjatoslav/sixth/e3d/geometry/Box.java

   1 /*
   2  * Sixth 3D engine. Author: Svjatoslav Agejenko.
   3  * This project is released under Creative Commons Zero (CC0) license.
   4  */
   5 package eu.svjatoslav.sixth.e3d.geometry;
   6
   7 /**
   8  * Same as: 3D rectangle, rectangular box, rectangular parallelopiped, cuboid,
   9  * rhumboid, hexahedron, rectangular prism.
  10  */
  11 public class Box implements Cloneable {
  12
  13     public final Point3D p1;
  14     public final Point3D p2;
  15
  16     public Box() {
  17         p1 = new Point3D();
  18         p2 = new Point3D();
  19     }
  20
  21     public Box(final Point3D p1, final Point3D p2) {
  22         this.p1 = p1;
  23         this.p2 = p2;
  24     }
  25
  26     public Box addBorder(final double border) {
  27
  28         if (p1.x < p2.x) {
  29             p1.translateX(-border);
  30             p2.translateX(border);
  31         } else {
  32             p1.translateX(border);
  33             p2.translateX(-border);
  34         }
  35
  36         if (p1.y < p2.y) {
  37             p1.translateY(-border);
  38             p2.translateY(border);
  39         } else {
  40             p1.translateY(border);
  41             p2.translateY(-border);
  42         }
  43
  44         if (p1.z < p2.z) {
  45             p1.translateZ(-border);
  46             p2.translateZ(border);
  47         } else {
  48             p1.translateZ(border);
  49             p2.translateZ(-border);
  50         }
  51
  52         return this;
  53     }
  54
  55     @Override
  56     public Box clone() {
  57         return new Box(p1.clone(), p2.clone());
  58     }
  59
  60     public double getDepth() {
  61         return Math.abs(p1.z - p2.z);
  62     }
  63
  64     public double getHeight() {
  65         return Math.abs(p1.y - p2.y);
  66     }
  67
  68     public double getWidth() {
  69         return Math.abs(p1.x - p2.x);
  70     }
  71
  72     public void setSizeCentered(final Point3D size) {
  73         p2.clone(size).scaleDown(2);
  74         p1.clone(p2).invert();
  75     }
  76
  77 }