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package ch.epfl.maze.physical;
import ch.epfl.maze.util.Direction;
import ch.epfl.maze.util.Vector2D;
/**
* Predator that kills a prey when they meet with each other in the labyrinth.
*/
abstract public class Predator extends Animal {
/* constants relative to the Pac-Man game */
public static final int SCATTER_DURATION = 14;
public static final int CHASE_DURATION = 40;
/**
* Constructs a predator with a specified position.
*
* @param position Position of the predator in the labyrinth
*/
public Predator(Vector2D position) {
super(position);
// TODO
}
/**
* Moves according to a <i>random walk</i>, used while not hunting in a
* {@code MazeSimulation}.
*/
@Override
public final Direction move(Direction[] choices) {
// TODO
return Direction.NONE;
}
/**
* Retrieves the next direction of the animal, by selecting one choice among
* the ones available from its position.
* <p>
* In this variation, the animal knows the world entirely. It can therefore
* use the position of other animals in the daedalus to hunt more
* effectively.
*
* @param choices The choices left to the animal at its current position (see
* {@link ch.epfl.maze.physical.World#getChoices(Vector2D)
* World.getChoices(Vector2D)})
* @param daedalus The world in which the animal moves
* @return The next direction of the animal, chosen in {@code choices}
*/
abstract public Direction move(Direction[] choices, Daedalus daedalus);
}
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