Arakne / Araknemu

 * This file is part of Araknemu.

 *

 * Araknemu 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.

 *

 * Araknemu 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 Araknemu.  If not, see <https://www.gnu.org/licenses/>.

 *

 * Copyright (c) 2017-2020 Vincent Quatrevieux

 */

package fr.quatrevieux.araknemu.game.spell.effect.area;

import fr.arakne.utils.maps.MapCell;

import fr.arakne.utils.maps.constant.Direction;

import fr.quatrevieux.araknemu.data.value.EffectArea;

import java.util.HashSet;

import java.util.Set;

/**

 * Resolve perpendicular line (i.e. baton area)

 */

public final class PerpendicularLineArea implements SpellEffectArea {

    private final EffectArea area;

    @Override

    public <C extends MapCell<C>> Set<C> resolve(C target, C source) {

        final Set<C> cells = new HashSet<>(area.size() * 2 + 1);

        final Direction direction = source.coordinate().directionTo(target).orthogonal();

        cells.add(target);

        LineArea.addCells(cells, target, direction, area.size());

        LineArea.addCells(cells, target, direction.opposite(), area.size());

        return cells;

    }

    @Override

    public EffectArea.Type type() {

        return EffectArea.Type.PERPENDICULAR_LINE;

    }

    @Override

    public int size() {

        return area.size();

    }

}