Intermediate commit: works partially, but sometimes cars go over each other (Crossing.isAllowed() is not synchronized)

1 files changed, 15 insertions, 0 deletions

diff --git a/Week14 Route 66/src/OO14route66/Direction.java b/Week14 Route 66/src/OO14route66/Direction.java
index b8c1636..14d7110 100644
--- a/Week14 Route 66/src/OO14route66/Direction.java
+++ b/Week14 Route 66/src/OO14route66/Direction.java
@@ -37,6 +37,21 @@ public enum Direction
             }
         }
     }
+    
+    /**
+     * Get the opposite of a direction
+     * @param direction
+     * @return 
+     */
+    public static Direction opposite(Direction direction) {
+        switch (direction) {
+            case North: return South;
+            case South: return North;
+            case East: return West;
+            case West: return East;
+            default: return direction;
+        }
+    }
 
     /**
      * override standard toString