/*
* $Id$
* This file is a part of the Arakhne Foundation Classes, http://www.arakhne.org/afc
*
* Copyright (c) 2000-2012 Stephane GALLAND.
* Copyright (c) 2005-10, Multiagent Team, Laboratoire Systemes et Transports,
* Universite de Technologie de Belfort-Montbeliard.
* Copyright (c) 2013-2016 The original authors, and other authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.arakhne.afc.math.geometry.d3;
import java.util.Comparator;
/**
* Comparator of Tuple3D on their integer coordinates.
*
* <p>For comparisons on the floating-point coordinates, see {@link Tuple3fComparator}.
* @author $Author: tpiotrow$
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
*/
public class Tuple3iComparator implements Comparator<Tuple3D<?>> {
/** Construct a comparator.
*/
public Tuple3iComparator() {
//
}
@Override
public int compare(Tuple3D<?> tuple1, Tuple3D<?> tuple2) {
if (tuple1 == tuple2) {
return 0;
}
if (tuple1 == null) {
return Integer.MIN_VALUE;
}
if (tuple2 == null) {
return Integer.MAX_VALUE;
}
final int cmpX = tuple1.ix() - tuple2.ix();
if (cmpX != 0) {
return cmpX;
}
final int cmpY = tuple1.iy() - tuple2.iy();
if (cmpY != 0) {
return cmpY;
}
return tuple1.iz() - tuple2.iz();
}
}