2 * Copyright 2009 (c) Florian Frankenberger (darkblue.de)
4 * This file is part of LEA.
6 * LEA is free software: you can redistribute it and/or modify it under the
7 * terms of the GNU Lesser General Public License as published by the Free
8 * Software Foundation, either version 3 of the License, or (at your option) any
11 * LEA is distributed in the hope that it will be useful, but WITHOUT ANY
12 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
13 * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with LEA. If not, see <http://www.gnu.org/licenses/>.
20 package de.darkblue.lea.model;
22 import java.awt.Point;
23 import java.awt.geom.Rectangle2D;
26 * No description given.
28 * @author Florian Frankenberger
30 public class EyePosition {
33 private Rectangle2D faceRect;
35 public EyePosition(Point p, Rectangle2D faceRect) {
36 this(p.x, p.y, faceRect);
39 public EyePosition(int x, int y, Rectangle2D faceRect) {
42 this.faceRect = faceRect;
53 public Deviation getDeviation(EyePosition oldEyePosition) {
54 if (oldEyePosition == null) return Deviation.NONE;
56 //first we check if the faceRects are corresponding
57 double widthChange = (this.faceRect.getWidth() - oldEyePosition.faceRect.getWidth()) / this.faceRect.getWidth();
58 if (widthChange > 0.1) return Deviation.NONE;
60 int maxDeviationX = (int)Math.round(this.faceRect.getWidth() / 4f);
61 int maxDeviationY = (int)Math.round(this.faceRect.getWidth() / 8f);
62 int minDeviation = (int)Math.round(this.faceRect.getWidth() / 16f);
64 int deviationX = Math.abs(x - oldEyePosition.x);
65 int directionX = sgn(x - oldEyePosition.x);
66 if (deviationX < minDeviation || deviationX > maxDeviationX) directionX = 0;
68 int deviationY = Math.abs(y - oldEyePosition.y);
69 int directionY = sgn(y - oldEyePosition.y);
70 if (deviationY < minDeviation || deviationY > maxDeviationY) directionY = 0;
72 double deviationXPercent = deviationX / this.faceRect.getWidth();
73 double deviationYPercent = deviationY / this.faceRect.getWidth();
75 System.out.println(String.format("devX: %.2f | devY: %.2f", deviationXPercent*100f, deviationYPercent*100f));
76 return Deviation.getDirectionFor(directionX, directionY);
80 private static int sgn(int i) {