Room.rb in ifmapper-0.7

- old
+ new

@@ -9,18 +9,18 @@
   attr_reader    :exits
   attr_accessor  :darkness
   attr_accessor  :x, :y
 
   DIRECTIONS = [
-    'N',
-    'NE',
-    'E',
-    'SE',
-    'S',
-    'SW',
-    'W',
-    'NW',
+    'n',
+    'ne',
+    'e',
+    'se',
+    's',
+    'sw',
+    'w',
+    'nw',
   ]
 
   DIR_TO_VECTOR = { 
     0 => [  0, -1 ],
     1 => [  1, -1 ],
@@ -42,11 +42,11 @@
 
   #
   # Return a direction from the vector of the exit that would take
   # us to the 'b' room more cleanly.
   #
-  def vector_to_dir(dx, dy)
+  def self.vector_to_dir(dx, dy)
     if dx == 0
       return 4 if dy > 0
       return 0 if dy < 0
       raise "vector_to_dir: dx == 0 and dy == 0"
     elsif dx > 0
@@ -56,9 +56,13 @@
     else
       return 7 if dy < 0
       return 6 if dy == 0
       return 5
     end
+  end
+
+  def vector_to_dir(dx, dy)
+    return Room::vector_to_dir( dx, dy )
   end
 
   #
   # Given an 'adjacent' room, return the most direct exit from this
   # room to room b.