/*
* $Id$
* 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.d2;
import java.util.Comparator;
import org.eclipse.xtext.xbase.lib.Pure;
/**
* Comparator of Tuple2D on their integer coordinates.
*
* <p>For comparisons on the floating-point coordinates, see {@link Tuple2fComparator}.
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @since 13.0
* @see Tuple2fComparator
*/
public class Tuple2iComparator implements Comparator<Tuple2D<?>> {
/** Construct a comparator.
*/
public Tuple2iComparator() {
//
}
@Pure
@Override
public int compare(Tuple2D<?> tuple1, Tuple2D<?> tuple2) {
if (tuple1 == tuple2) {
return 0;
}
if (tuple1 == null) {
return Integer.MIN_VALUE;
}
if (tuple2 == null) {
return Integer.MAX_VALUE;
}
final int cmp = tuple1.ix() - tuple2.ix();
if (cmp != 0) {
return cmp;
}
return tuple1.iy() - tuple2.iy();
}
}