lib/geometer/point.rb in geometer-0.1.1 vs lib/geometer/point.rb in geometer-0.1.2

@@ -2,12 +2,23 @@
   class Point < Struct.new(:x, :y)
     def inspect
       "(#{x},#{y})"
     end
 
-    def -@
+    def invert
       Point.new(-x,-y)
     end
+    alias_method :-@, :invert
+    
+    def scale(sz)
+      Point.new(x*sz,y*sz)
+    end
+    alias_method :*, :scale
+
+    def divide(sz)
+      scale(1.0/sz)
+    end
+    alias_method :/, :divide
 
     def translate(other_point)
       dx,dy = *other_point
       Point.new(x+dx, y+dy)
     end