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.fight.map;

import fr.arakne.utils.maps.CoordinateCell;

import fr.arakne.utils.maps.serializer.CellData;

import fr.quatrevieux.araknemu.game.fight.exception.FightMapException;

import fr.quatrevieux.araknemu.game.fight.fighter.PassiveFighter;

import java.util.Optional;

/**

 * Base fight cell

 */

public final class WalkableFightCell implements FightCell {

    private final FightMap map;

    private final CellData template;

    private final int id;

    private final CoordinateCell<FightCell> coordinate;

    private PassiveFighter fighter;

    public WalkableFightCell(FightMap map, CellData template, int id) {

        this.map = map;

        this.template = template;

        this.id = id;

        this.coordinate = new CoordinateCell<>(this);

    }

    @Override

    public int id() {

        return id;

    }

    @Override

    public FightMap map() {

        return map;

    }

    @Override

    public boolean walkable() {

        return fighter == null;

    }

    @Override

    public boolean walkableIgnoreFighter() {

        return true;

    }

    @Override

    public boolean sightBlocking() {

        return !template.lineOfSight() || fighter != null;

    }

    @Override

    public Optional<PassiveFighter> fighter() {

        return Optional.ofNullable(fighter);

    }

    @Override

    public void set(PassiveFighter fighter) {

        if (this.fighter != null) {

            throw new FightMapException("A fighter is already set on this cell (" + id + ")");

        }

        this.fighter = fighter;

    }

    @Override

    public void removeFighter() {

        if (this.fighter == null) {

            throw new FightMapException("No fighter found on cell " + id);

        }

        this.fighter = null;

    }

    @Override

    public int hashCode() {

        return id;

    }

    @Override

    public boolean equals(Object o) {

        if (this == o) {

            return true;

        }

        if (o == null || getClass() != o.getClass()) {

            return false;

        }

        final WalkableFightCell that = (WalkableFightCell) o;

        return id == that.id && map == that.map;

    }

}