Arakne / SwfLangLoader

 * This file is part of ArakneLangLoader.

 *

 * ArakneLangLoader is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * ArakneLangLoader is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with ArakneLangLoader.  If not, see <https://www.gnu.org/licenses/>.

 *

 * Copyright (c) 2020 Vincent Quatrevieux

 */

package fr.arakne.swflangloader.lang.maps;

import java.util.Objects;

/**

 * Positions and extra information for a single game map

 *

 * Note: The coordinates are not unique

 */

final public class MapPosition {

    private int id;

    private MapsFile maps;

    /* final */ private int x;

    /* final */ private int y;

    /* final */ private int sa;

    /* final */ private int ep;

    /**

     * @return The map id. Unique on the maps file

     */

    /**

     * The X coordinate

     * Lower value for north, and higher for south

     *

     * @return The coordinate value

     */

    public int x() {

        return x;

    }

    /**

     * The Y coordinate

     * Lower value for west, higher value for east

     *

     * @return The coordinate value

     */

    public int y() {

        return y;

    }

    /**

     * @return The sub area id

     */

    public int subAreaId() {

        return sa;

    }

    /**

     * @return The sub area instance

     */

    public MapSubArea subArea() {

        return maps.subArea(sa);

    }

    /**

     * @return The ep value

     */

    public int ep() {

        return ep;

    }

    /**

     * Compute manhattan distance between the two maps positions

     *

     * @param other The other map position

     *

     * @return The distance

     */

    public int distance(MapPosition other) {

        return Math.abs(x - other.x) + Math.abs(y - other.y);

    }

    @Override

    public boolean equals(Object o) {

        if (this == o) return true;

        if (o == null || getClass() != o.getClass()) return false;

        MapPosition position = (MapPosition) o;

        return id == position.id;

    }

    @Override

    public int hashCode() {

        return Objects.hash(id);

    }

    @Override

    public String toString() {

        return "MapPosition{" + id +

            ", x=" + x +

            ", y=" + y +

            ", sa=" + subArea().name() + " (" + sa + ")" +

            '}';

    }

    void setId(int id) {

        this.id = id;

    }

    void setMaps(MapsFile maps) {

        this.maps = maps;

    }

}