From c5e5646b7785e1b5d1c46efd5e93a6f95d5bad9f Mon Sep 17 00:00:00 2001
From: Pacien TRAN-GIRARD
Date: Wed, 25 Nov 2015 00:07:56 +0100
Subject: Implement PacMan predator avoidance

---
 .../stragegies/planner/DistanceCalculator.java     | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 src/ch/epfl/maze/physical/stragegies/planner/DistanceCalculator.java

(limited to 'src/ch/epfl/maze/physical/stragegies/planner')

diff --git a/src/ch/epfl/maze/physical/stragegies/planner/DistanceCalculator.java b/src/ch/epfl/maze/physical/stragegies/planner/DistanceCalculator.java
new file mode 100644
index 0000000..daeb581
--- /dev/null
+++ b/src/ch/epfl/maze/physical/stragegies/planner/DistanceCalculator.java
@@ -0,0 +1,33 @@
+package ch.epfl.maze.physical.stragegies.planner;
+
+import ch.epfl.maze.util.Direction;
+import ch.epfl.maze.util.Vector2D;
+
+/**
+ * @author Pacien TRAN-GIRARD
+ */
+public interface DistanceCalculator {
+
+    /**
+     * Returns the current position.
+     *
+     * @return The current position vector
+     */
+    Vector2D getPosition();
+
+    /**
+     * Calculates the Euclidean distance from the adjacent position at the given Direction to the target position.
+     *
+     * @param dir            The adjacent Direction
+     * @param targetPosition The targeted position
+     * @return The Euclidean distance between the two positions
+     */
+    default double getDistanceTo(Direction dir, Vector2D targetPosition) {
+        return this
+                .getPosition()
+                .addDirectionTo(dir)
+                .sub(targetPosition)
+                .dist();
+    }
+
+}
-- 
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