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/*
 * Copyright (c) 2010-2021 Allette Systems (Australia)
 *    http://www.allette.com.au
 *
 * 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.pageseeder.diffx.algorithm;

/**
 * An immutable x,y set of coordinates.
 *
 * @author Chrisophe Lauret
 * @version 0.9.0
 */
public final class Point {

  private final int x;
  private final int y;

  public Point(int x, int y) {
    this.x = x;
    this.y = y;
  }

  public int x() {
    return this.x;
  }

  public int y() {
    return this.y;
  }

  public boolean isNotSame(int x, int y) {
    return x != this.x || y != this.y;
  }

  public Point plus(int x, int y) {
    return new Point(this.x + x, this.y + y);
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    Point point = (Point) o;
    return x == point.x && y == point.y;
  }

  @Override
  public int hashCode() {
    return 31 * x + y;
  }

  @Override
  public String toString() {
    return "(" + x + "," + y + ')';
  }
}