1 /* 2 * Copyright (c) 2009-2010 jMonkeyEngine 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package com.jme3.collision.bih; 34 35 import com.jme3.math.Vector3f; 36 import java.util.Comparator; 37 38 public class TriangleAxisComparator implements Comparator<BIHTriangle> { 39 40 private final int axis; 41 TriangleAxisComparator(int axis)42 public TriangleAxisComparator(int axis){ 43 this.axis = axis; 44 } 45 compare(BIHTriangle o1, BIHTriangle o2)46 public int compare(BIHTriangle o1, BIHTriangle o2) { 47 float v1, v2; 48 Vector3f c1 = o1.getCenter(); 49 Vector3f c2 = o2.getCenter(); 50 switch (axis){ 51 case 0: v1 = c1.x; v2 = c2.x; break; 52 case 1: v1 = c1.y; v2 = c2.y; break; 53 case 2: v1 = c1.z; v2 = c2.z; break; 54 default: assert false; return 0; 55 } 56 if (v1 > v2) 57 return 1; 58 else if (v1 < v2) 59 return -1; 60 else 61 return 0; 62 } 63 }