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/*
 * FXGL - JavaFX Game Library. The MIT License (MIT).
 * Copyright (c) AlmasB ([email protected]).
 * See LICENSE for details.
 */

package com.almasb.fxgl.pathfinding;

import com.almasb.fxgl.core.collection.grid.Cell;

import java.util.List;

/**
 * @author Almas Baimagambetov ([email protected])
 */
public interface Pathfinder {

    /**
     * Empty list is returned if no path exists.
     *
     * @return a list of cells from source (excl.) to target (incl.)
     */
    List findPath(int sourceX, int sourceY, int targetX, int targetY);

    /**
     * Empty list is returned if no path exists.
     *
     * @return a list of cells from source (excl.) to target (incl.) while ignoring busyCells
     */
    List findPath(int sourceX, int sourceY, int targetX, int targetY, List busyCells);
}