implement FLN action & operations

1 files changed, 62 insertions, 0 deletions

diff --git a/lib/colonial_twilight/actions/fln/march.rb b/lib/colonial_twilight/actions/fln/march.rb
new file mode 100644
index 0000000..e738733
--- /dev/null
+++ b/lib/colonial_twilight/actions/fln/march.rb
@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+require_relative 'fln_action'
+
+module ColonialTwilight
+  module Actions
+    module FLN
+      # March 3.3.2
+      class March < FlnAction
+        def initialize(space, mode)
+          super(space, mode, cost: 1)
+        end
+
+        def cost
+          # Cost is 1 Resource per destination space moved into
+          mode.keys.size
+        end
+
+        def validate!
+          super
+          raise 'select at least 1 destination' if mode.empty?
+
+          total_moved = mode.values.sum
+          raise "total moved #{total_moved} exceeds available #{space.guerrillas}" if total_moved > space.guerrillas
+        end
+
+        # move any number of Guerrillas to adjacent spaces as a group
+        def apply!(board)
+          raise NotImplementedError
+        end
+
+        class << self
+          def op?
+            true
+          end
+
+          # any space with FLN cubes
+          def applicable?(space)
+            space.guerrillas.positive?
+          end
+
+          def available_modes(space)
+            space.adjacents.to_h { |idx| [idx, space.guerrillas] }
+          end
+
+          # the group must stop if moving across a Wilaya border or an International border
+          def must_stop?(space_from, space_to)
+            space_from.wilaya != space_to.wilaya || space_from.country? || space_to.country?
+          end
+
+          # if destination is at Support: activate group if moved FLN + Gov cubes > 3
+          # when crossing International border: activate group if moved FLN + Gov cubes + Border level > 3
+          def must_activate?(board, space_from, space_to, num = 1)
+            international = space_from.country? || space_to.country?
+            (international || space_to.support?) &&
+              (num + space_to.gov_cubes + (international ? board.border_zone_track : 0)) > 3
+          end
+        end
+      end
+    end
+  end
+end