add fln_bot_rules & specs

1 files changed, 160 insertions, 0 deletions

diff --git a/lib/colonial_twilight/fln_bot_rules.rb b/lib/colonial_twilight/fln_bot_rules.rb
new file mode 100644
index 0000000..e9b9e79
--- /dev/null
+++ b/lib/colonial_twilight/fln_bot_rules.rb
@@ -0,0 +1,160 @@
+#! /usr/bin/env ruby
+# frozen_string_literal: true
+
+module ColonialTwilight
+  module FLNBotRules
+    def dbg(msg, ret)
+      return if @debug.zero?
+
+      case @debug
+      when 1 then puts "  #{msg} : YES" if ret
+      else puts "  #{msg} : #{ret ? 'YES' : 'NO'}"
+      end
+    end
+
+    def pass?
+      # if resources = 0 && Op Limited as only choice
+      r = @board.fln_resources.zero? && limited_op_only?
+      dbg 'PASS', r
+      r
+    end
+
+    def terror1?
+      # unless any FLN base is (pop 0 && 0 FLN underground or pop 1+ && 1- FLN underground)
+      r = !@board.has do |s|
+        s.fln_bases.positive? &&
+          ((s.pop.zero? && s.fln_underground.zero?) || (!s.pop.zero? && s.fln_underground < 2))
+      end
+      dbg 'TERROR 1', r
+      r
+    end
+
+    def terror2?
+      # if GOV is first eligible && will be second eligible
+      r = !first_eligible? && will_be_next_first_eligible?
+      dbg 'TERROR 2', r
+      r
+    end
+
+    def rally1?
+      # rally would place bases (first 2 bullets)
+      # 4+ or (3+ FLN and no GOV (unless limited_op_only))
+      r = @board.available_fln_bases.positive? && @board.has do |s|
+        may_add_base_in?(s) && (rally_2_in?(s) || rally_1_in?(s))
+      end
+      dbg 'RALLY 1', r
+      r
+    end
+
+    def rally2?
+      # if #FLN bases * 2 > #FLN at FLN bases + 1d6/2
+      a = @board.count(&:fln_bases) * 2
+      b = @board.count { |s| s.fln_bases.zero? ? 0 : s.fln_cubes }
+      r = a > (b + d6 / 2)
+      dbg 'RALLY 2', r
+      r
+    end
+
+    # Rally
+
+    def may_add_base_in?(space)
+      r = space.fln_cubes > 2 && (space.fln_bases < (space.country? ? space.max_bases : 1))
+      dbg "  may_add_base : #{space.name}", r
+      r
+    end
+
+    def rally_1_in?(space)
+      # 3+ FLN and no GOV (unless limited_op_only))
+      r = space.fln_cubes >= 3 && (limited_op_only? ? true : space.gov_cubes.zero?)
+      dbg "  rally_1_in : #{space.name}", r
+      r
+    end
+
+    def rally_2_in?(space)
+      # 4+ FLN
+      r = space.fln_cubes >= 4
+      dbg "  rally_2_in : #{space.name}", r
+      r
+    end
+
+    def rally_3_in?(space)
+      # at FLN bases, with 2- FLN underground or 0 fln_undergroud in country or 0 pop
+      r = !space.fln_bases.zero? &&
+          (space.country? || space.pop.zero? ? space.fln_underground.zero? : space.fln_underground < 2)
+      dbg "  rally_3_in : #{space.name}", r
+      r
+    end
+
+    def rally_3_priority(spaces)
+      # Algeria -> with cubes -> pop 1+ -> least FLN underground
+      l0 = (l0 = spaces.reject(&:country?)).empty? ? spaces : l0
+      l1 = (l1 = l0.select { |s| s.gov_cubes.positive? }).empty? ? l0 : l1
+      l2 = (l2 = l1.select { |s| s.pop.positive? }).empty? ? l1 : l2
+      l2.min { |a, b| a.fln_underground <=> b.fln_underground }
+    end
+
+    def rally_5_in?(space)
+      # non-city at support with 0 FLN underground
+      r = !space.city? && space.support? && space.fln_underground.zero?
+      dbg "  rally_5_in : #{space.name}", r
+      r
+    end
+
+    def rally_6_in?(space)
+      # 2+ pop to agitate
+      r = space.pop > 1 && may_agitate_in?(space)
+      dbg "  rally_6_in : #{space.name}", r
+      r
+    end
+
+    def rally_8_in?(space)
+      r = !space.fln_cubes.zero? && space.fln_bases.zero?
+      dbg "  rally_8_in : #{space.name}", r
+      r
+    end
+
+    # 8.1.2 - Procedure Guidelines
+    def fln_to_place?
+      @board.available_fln_underground.positive? || !place_from(@board.spaces).nil?
+    end
+
+    # 1) place: outofplay -> available | bases -> cubes if choice
+    # 2) place: underground first unless from map then place active first flipped as underground
+    # 3) march: underground -> active, unless march would activate then move active first
+
+    def place_in(spaces)
+      # 4) support -> with friendly pieces -> random
+      l0 = (l0 = spaces.select(&:support?)).empty? ? spaces : l0
+      l1 = (l1 = l0.select { |s| s.fln_cubes.positive? }).empty? ? l0 : l1
+      (l1.empty? ? @board.spaces : l1).sample
+    end
+
+    def place_from(spaces)
+      # 5) active only, leave 2 cubes at base or support, most cubes first
+      l = spaces.select do |s|
+        s.fln_active.positive? && (s.support? || s.fln_bases.positive? ? s.fln_cubes > 2 : true)
+      end
+      return nil if l.empty?
+
+      v = l.max { |a, b| a.fln_cubes <=> b.fln_cubes }.fln_cubes
+      l.select { |s| s.fln_cubes == v }.sample
+    end
+
+    def remove_from(space, num = 1)
+      # 6) remove active -> underground -> base
+      h = {}
+      num -= h[:fln_active] = (s = space.fln_active) >= num ? num : s
+      num -= h[:fln_underground] = (s = space.fln_underground) >= num ? num : s
+      h[:fln_bases] = (s = space.fln_bases) >= num ? num : s
+      h
+    end
+
+    def remove_gov(num = 1)
+      # 7) map -> availabe (base -> french -> algerian; troops -> police)
+    end
+
+      # 8) reduce : commitment -> support -> france track -> gov resource
+      # 9) shift : support -> oppose | best combined; remove terror only if also shift
+      # 10) random
+  end
+end