Forces : #update_control return true if changed

3 files changed, 6 insertions, 4 deletions

diff --git a/lib/colonial_twilight/fln_rules.rb b/lib/colonial_twilight/fln_rules.rb
index 5f8fd48..f260dea 100644
--- a/lib/colonial_twilight/fln_rules.rb
+++ b/lib/colonial_twilight/fln_rules.rb
@@ -20,7 +20,7 @@ module ColonialTwilight
       board.search(&method(:may_agitate_in?))
     end
 
-    def max_fln_to_place_in(space)
+    def max_placable_flns(space)
       space.fln_bases.positive? ? space.fln_bases + space.pop - space.fln_cubes : 1
     end
 
diff --git a/lib/colonial_twilight/forces.rb b/lib/colonial_twilight/forces.rb
index 2048a00..4991c89 100644
--- a/lib/colonial_twilight/forces.rb
+++ b/lib/colonial_twilight/forces.rb
@@ -130,8 +130,9 @@ module ColonialTwilight
     end
 
     def update_control
-      return if @control.nil?
+      return nil if @control.nil?
 
+      ctr = @control
       @control = (
           case gov <=> fln
           when  0 then :uncontrolled
@@ -139,6 +140,7 @@ module ColonialTwilight
           when -1 then :FLN
           end
         )
+      @control != ctr
     end
   end
 end
diff --git a/spec/fln_rules_spec.rb b/spec/fln_rules_spec.rb
index 385972a..90fc708 100644
--- a/spec/fln_rules_spec.rb
+++ b/spec/fln_rules_spec.rb
@@ -28,14 +28,14 @@ describe ColonialTwilight::FLNRules do
     it 'may place 1 FLN cube' do
       @board.load :short
       space = @board.by_name('Mostaganem')
-      expect(rules.max_fln_to_place_in(space)).to eq(1)
+      expect(rules.max_placable_flns(space)).to eq(1)
     end
 
     it 'may place 2 FLN cube' do
       @board.load :short
       space = @board.by_name('Orleansville')
       space.add :fln_base
-      expect(rules.max_fln_to_place_in(space)).to eq(3)
+      expect(rules.max_placable_flns(space)).to eq(3)
     end
   end