Remove pointless complexity

lib/hanoi/jane.rb

@@ -9,7 +9,6 @@
 require 'hanoi/jane/config'
 require 'hanoi/jane/exceptions'
 
-require 'hanoi/jane/towers/stack_finders'
 require 'hanoi/jane/towers/regular_towers'
 require 'hanoi/jane/towers/constrained_towers'
 require 'hanoi/jane/towers/animated_towers'

lib/hanoi/jane/towers/constrained_towers.rb

@@ -1,8 +1,6 @@
 module Hanoi
   module Jane
     class ConstrainedTowers < RegularTowers
-      extend ConstrainedStackFinder
-
       def initialize discs = 3
         super
         @base = 3
@@ -17,6 +15,20 @@ def inspect
         i[:ternary] = i.delete :binary
         i
       end
+
+      def ConstrainedTowers.find_stack stacks:, from:, disc: nil, total:
+        # if we're in the middle
+        if from == 1
+          # we always move to the right on an even total
+          if total % 2 == 0
+            return 2
+          else
+            return 0
+          end
+        end
+        # otherwise we're at the edges and can only move to the middle
+        1
+      end
     end
   end
 end

lib/hanoi/jane/towers/regular_towers.rb

@@ -3,8 +3,6 @@ module Jane
     class RegularTowers
       include Enumerable
 
-      extend StackFinder
-
       attr_reader   :total, :base, :disc, :from, :to, :discs
       attr_accessor :stacks
 
@@ -88,6 +86,21 @@ def rebased
         self.class.rebase @total, @base, @discs
       end
 
+      def RegularTowers.find_stack stacks:, from:, disc:, total: nil
+        # if the next stack is empty, move there
+        if stacks[(from + 1) % 3] == []
+          return (from + 1) % 3
+        end
+
+        # if the next stack has a smaller top disc than our disc, go one more over
+        if stacks[(from + 1) % 3][-1] < disc
+          return (from + 2) % 3
+        end
+
+        # default to the next one
+        (from + 1) % 3
+      end
+
       def RegularTowers.starter_stacks discs
         [(0...discs).to_a.reverse, [], []]
       end

lib/hanoi/jane/version.rb

@@ -1,5 +1,5 @@
 module Hanoi
   module Jane
-    VERSION = '0.3.2'
+    VERSION = '0.3.3'
   end
 end