Use inventory weight to limit buying

actions/market_actions.rb

@@ -3,13 +3,17 @@
 class MarketActions < Action
   def self.buy good, market
     price = market.price good
-    if $adventurer.can_afford?(price) && market.available?(good)
+    if !$adventurer.can_afford?(price)
+      return failure("Sorry, you don't have enough #{MONEY}.")
+    elsif !market.available?(good)
+      return failure("Sorry, there's nothing left to buy.")
+    elsif $adventurer.encumbered?
+      return failure("You're carrying too much already!")
+    else
       $adventurer.inventory.add good, 1
       $adventurer.pay price
       market.remove good, 1 
       return success
-    else
-      return failure
     end
   end
 

concepts/adventurer.rb

@@ -15,7 +15,7 @@ def initialize name
   end
 
   def status
-    "You have #@life life. You have #@money #{MONEY}."
+    "You have #@life life. You have #@money #{MONEY}. Your pack weighs #{inventory.weight}."
   end
 
   def heal!
@@ -40,7 +40,6 @@ def damage_range
 
   MAX_WEIGHT = 100
   def encumbered?
-    pp inventory.weight
     inventory.weight > MAX_WEIGHT
   end
 end

interfaces/in_town.rb

@@ -113,7 +113,7 @@ def buy good
     if result.success?
       @result = Gosu::Image.from_text("You have #{$adventurer.money} #{MONEY} left.", 30)
     else
-      @result = Gosu::Image.from_text("Sorry, you don't have enough #{MONEY}.", 30)
+      @result = Gosu::Image.from_text(result.text, 30)
     end
     update_greeting
     buy_goods @selected_option # regenerates the options