Refactor Mouse strategy

1 files changed, 27 insertions, 0 deletions

diff --git a/src/ch/epfl/maze/physical/stragegies/picker/RandomPicker.java b/src/ch/epfl/maze/physical/stragegies/picker/RandomPicker.java
new file mode 100644
index 0000000..427c0eb
--- /dev/null
+++ b/src/ch/epfl/maze/physical/stragegies/picker/RandomPicker.java
@@ -0,0 +1,27 @@
+package ch.epfl.maze.physical.stragegies.picker;
+
+import ch.epfl.maze.util.Direction;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+import java.util.Set;
+
+/**
+ * A probabilistic decision maker.
+ *
+ * @author Pacien TRAN-GIRARD
+ */
+public interface RandomPicker extends BlindPicker {
+
+    Random RANDOM_SOURCE = new Random();
+
+    @Override
+    default Direction pick(Set<Direction> choices) {
+        if (choices.isEmpty()) return FALLBACK_DIRECTION;
+
+        List<Direction> choiceList = new ArrayList<>(choices);
+        return choiceList.get(RANDOM_SOURCE.nextInt(choices.size()));
+    }
+
+}