1 files changed, 59 insertions, 0 deletions

diff --git a/src/ch/epfl/maze/physical/Predator.java b/src/ch/epfl/maze/physical/Predator.java
new file mode 100644
index 0000000..5aa3be2
--- /dev/null
+++ b/src/ch/epfl/maze/physical/Predator.java
@@ -0,0 +1,59 @@
+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);
+}