Merge pull request #10016 from philcampeau/1825-multiple-10-buy

[1825] corps can only pay multiples of 10 for crossbuys
tobymao · Dec 28, 2023 · a4be93a · a4be93a
2 parents 45a1e5b + 838f579
commit a4be93a
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diff --git a/lib/engine/game/g_1825/game.rb b/lib/engine/game/g_1825/game.rb
@@ -350,6 +350,7 @@ def game_trains
         TILE_LAYS = [{ lay: true, upgrade: true }, { lay: :not_if_upgraded, upgrade: false }].freeze
         GAME_END_CHECK = { bank: :current_or, stock_market: :immediate }.freeze
         TRAIN_PRICE_MIN = 10
+        TRAIN_PRICE_MULTIPLE = 10
         IMPASSABLE_HEX_COLORS = %i[blue sepia red].freeze
         TILE_200 = '200'
 

diff --git a/lib/engine/game/g_1825/step/buy_train.rb b/lib/engine/game/g_1825/step/buy_train.rb
@@ -79,6 +79,16 @@ def receivership_buy(entity)
               log_skip(entity)
             end
           end
+
+          def process_buy_train(action)
+            if action.train.owned_by_corporation? && !(action.price % @game.class::TRAIN_PRICE_MULTIPLE).zero?
+              raise GameError, 'Train purchase price must be a multiple of '\
+                               "#{@game.format_currency(@game.class::TRAIN_PRICE_MULTIPLE)}"
+            end
+
+            buy_train_action(action)
+            pass! unless can_buy_train?(action.entity)
+          end
         end
       end
     end