[18ESP] fix a few minor bugs

lib/engine/game/g_18_esp/game.rb

@@ -876,11 +876,16 @@ def num_corp_trains(entity)
         end
 
         def place_home_token(corporation)
-          if corporation == mza && corporation_by_id('MZ')&.ipoed && !corporation.tokens.first.used
-            # mza special case if mz already exists on the map
+          if corporation == mza && !corporation.tokens.first.used
             token = corporation.tokens.first
             hex = hex_by_id(corporation.coordinates)
-            city = hex.tile.cities.size > 1 ? city_by_id("#{hex.tile.id}-#{corporation.city}") : hex.tile.cities.first
+            city = if corporation_by_id('MZ')&.ipoed
+                     # mza special case if mz already exists on the map
+                     hex.tile.cities.size > 1 ? city_by_id("#{hex.tile.id}-#{corporation.city}") : hex.tile.cities.first
+                   else
+                     # mza exists, but no mz. Place on original location
+                     city_by_id("#{hex.tile.id}-#{corporation.city}")
+                   end
             @log << "#{corporation.name} places a token on #{hex.id}"
             city.place_token(corporation, token, cheater: true, check_tokenable: false)
           else
@@ -904,6 +909,7 @@ def company_bought(company, entity)
         end
 
         def transfer_luxury_ability(company, entity)
+          transfer_tenders_to_bank
           luxury_ability = company.all_abilities.first
           if luxury_ability(entity)
             # entity already has tender. Do not add, but increase carriage count
@@ -917,6 +923,16 @@ def transfer_luxury_ability(company, entity)
           company.close!
         end
 
+        def transfer_tenders_to_bank
+          @luxury_carriages.dup.each do |owner, amount|
+            next if owner == 'bank'
+
+            transfer_amount = amount - 1
+            @luxury_carriages['bank'] += transfer_amount
+            @luxury_carriages[owner] = 1
+          end
+        end
+
         def luxury_ability(entity)
           entity.abilities.find { |a| a.description == 'Tender' }
         end

lib/engine/game/g_18_esp/step/acquire.rb

@@ -90,10 +90,14 @@ def choices
           end
 
           def can_swap?
-            return true unless mz?(@merging.last)
+            return merged_token_in_shared_city? unless mz?(@merging.last)
 
             @merging.last.tokens.first&.used &&
             !mz?(@merging.last) &&
+            merged_token_in_shared_city?
+          end
+
+          def merged_token_in_shared_city?
             @merging.first.tokens.none? { |token| token.hex == @merging.last.tokens.first.hex }
           end
 

lib/engine/game/g_18_esp/step/buy_carriage_or_company.rb

@@ -34,6 +34,7 @@ def buyable_items(_entity)
             items = []
             @game.luxury_carriages.each do |owner, amount|
               next unless amount.positive?
+              next if owner != 'bank' && @game.company_by_id(owner).closed?
 
               owner_str = owner == 'bank' ? owner : @game.company_by_id(owner).owner.name
               items << Item.new(description: "Tender from #{owner_str}", cost: @game.class::CARRIAGE_COST)