Use Interface instead of implementation

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ch/epfl/maze/physical/World.java b/src/ch/epfl/maze/physical/World.java
index 7e89fb5..f13b2b1 100644
--- a/src/ch/epfl/maze/physical/World.java
+++ b/src/ch/epfl/maze/physical/World.java
@@ -131,7 +131,7 @@ public abstract class World {
      */
 
     public final Direction[] getChoices(Vector2D position) {
-        ArrayList<Direction> choices = new ArrayList<>();
+        List<Direction> choices = new ArrayList<>();
         for (Direction dir : Direction.POSSIBLE_DIRECTIONS)
             if (this.isFree(position.addDirectionTo(dir)))
                 choices.add(dir);