src/main/java/eu/svjatoslav/sixth/e3d/renderer/octree/raytracer/CameraView.java

   1 /*
   2  * Sixth 3D engine. Author: Svjatoslav Agejenko.
   3  * This project is released under Creative Commons Zero (CC0) license.
   4  *
   5 *
   6  */
   7
   8 package eu.svjatoslav.sixth.e3d.renderer.octree.raytracer;
   9
  10 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
  11 import eu.svjatoslav.sixth.e3d.gui.Avatar;
  12
  13 public class CameraView {
  14
  15     Point3D camCenter;
  16     Point3D upLeft;
  17     Point3D upRight;
  18     Point3D downLeft;
  19     Point3D downRight;
  20
  21     public CameraView(final Avatar avatar, final double zoom) {
  22         computeCameraCoordinates(avatar, zoom);
  23     }
  24
  25     private void computeCameraCoordinates(final Avatar avatar, final double zoom) {
  26         camCenter = new Point3D(avatar.getLocation()).scaleDown(zoom);
  27
  28         upLeft = new Point3D(camCenter.x, camCenter.y, camCenter.z
  29                 + Camera.CAMERA_SIZE);
  30         upRight = new Point3D(upLeft);
  31         downLeft = new Point3D(upLeft);
  32         downRight = new Point3D(upLeft);
  33
  34         final float viewAngle = (float) .6;
  35
  36         upLeft.rotate(camCenter, -viewAngle, -viewAngle);
  37         upRight.rotate(camCenter, viewAngle, -viewAngle);
  38         downLeft.rotate(camCenter, -viewAngle, viewAngle);
  39         downRight.rotate(camCenter, viewAngle, viewAngle);
  40
  41         upLeft.rotate(camCenter, -avatar.getAngleXZ(), -avatar.getAngleYZ());
  42         upRight.rotate(camCenter, -avatar.getAngleXZ(), -avatar.getAngleYZ());
  43         downLeft.rotate(camCenter, -avatar.getAngleXZ(), -avatar.getAngleYZ());
  44         downRight.rotate(camCenter, -avatar.getAngleXZ(), -avatar.getAngleYZ());
  45     }
  46
  47 }