// $Id$
/*
 * WorldEdit
 * Copyright (C) 2010 sk89q <http://www.sk89q.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

package com.sk89q.worldedit;

public class WorldVector2D extends Vector2D {

    /**
     * Represents the world.
     */
    protected LocalWorld world;

    public WorldVector2D(LocalWorld world) {
        super();
        this.world = world;
    }

    public WorldVector2D(LocalWorld world, double x, double z) {
        super(x, z);
        this.world = world;
    }

    public WorldVector2D(LocalWorld world, float x, float z) {
        super(x, z);
        this.world = world;
    }

    public WorldVector2D(LocalWorld world, int x, int z) {
        super(x, z);
        this.world = world;
    }

    public WorldVector2D(LocalWorld world, Vector2D pt) {
        super(pt);
        this.world = world;
    }

    public LocalWorld getWorld() {
        return world;
    }

    /**
     * Checks if another object is equivalent.
     *
     * @param obj
     * @return whether the other object is equivalent
     */
    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof WorldVector2D)) {
            return false;
        }
        WorldVector2D other = (WorldVector2D) obj;
        return other.world.equals(world) && other.x == this.x
                && other.z == this.z;

    }

    /**
     * Gets the hash code.
     *
     * @return hash code
     */
    @Override
    public int hashCode() {
        return (world.hashCode() >> 7) ^
                ((int) (Double.doubleToLongBits(x) ^ (Double.doubleToLongBits(x) >>> 32)) >> 13) ^
                (int) (Double.doubleToLongBits(z) ^ (Double.doubleToLongBits(z) >>> 32));
    }
}