Add resting at the inn, and some refactoring

actions/action.rb

@@ -0,0 +1,21 @@
+class Action
+  def self.success
+    Success.new
+  end
+
+  def self.failure
+    Failure.new
+  end
+
+  class Success
+    def success?
+      true
+    end
+  end
+
+  class Failure
+    def success?
+      false
+    end
+  end
+end

actions/inn_actions.rb

@@ -0,0 +1,13 @@
+require_relative './action'
+
+class InnActions < Action
+  def self.rest cost
+    if $adventurer.money >= cost
+      $adventurer.money -= cost
+      $adventurer.heal!
+      return success
+    else
+      return failure
+    end
+  end
+end

actions/market_actions.rb

@@ -1,36 +1,27 @@
-class MarketActions
+require_relative './action'
+
+class MarketActions < Action
   def self.buy good, market
     price = market.send(good)[:price]
-    if $adventurer.money >= price
-      $adventurer.inventory.add(good, 1)
-      $adventurer.money -= price
-      market.remove(good, 1)
-      return Success.new
+    if $adventurer.can_afford? price
+      $adventurer.inventory.add good, 1
+      $adventurer.pay price
+      market.remove good, 1 
+      return success
     else
-      return Failure.new
+      return failure
     end
   end
 
   def self.sell good, market
     price = market.send(good)[:price]
     if $adventurer.inventory.goods[good] > 0
-      $adventurer.inventory.remove(good, 1)
-      $adventurer.money += price
-      market.add(good, 1)
-      return Success.new
+      $adventurer.inventory.remove good, 1
+      $adventurer.get_paid price
+      market.add good, 1
+      return success
     else
-      return Failure.new
-    end
-  end
-
-  class Success
-    def success?
-      true
-    end
-  end
-  class Failure
-    def success?
-      false
+      return failure
     end
   end
 end

concepts/adventurer.rb

@@ -4,8 +4,25 @@ class Adventurer
 
   def initialize name
     @name = name
+    @max_life = 20
     @life = 20
     @money = 100
     @inventory = Inventory.new(Hash.new 0)
   end
+
+  def heal!
+    @life = @max_life
+  end
+
+  def can_afford? cost
+    money >= cost
+  end
+
+  def pay cost
+    @money -= cost
+  end
+
+  def get_paid amount
+    @money += amount
+  end
 end

concepts/town.rb

@@ -14,4 +14,8 @@ def describe
   def market
     @market ||= Market.new(self)
   end
+
+  def inn_cost
+    @inn_cost ||= rand(5..15)
+  end
 end

interfaces/in_town.rb

@@ -1,4 +1,5 @@
 require_relative '../actions/market_actions'
+require_relative '../actions/inn_actions'
 
 class InTown < Interface
   attr_reader :town
@@ -39,7 +40,12 @@ def set_overview
   end
 
   def rest
-    puts 'resting'
+    result = InnActions.rest town.inn_cost
+    if result.success?
+      @result = Gosu::Image.from_text("You have #{$adventurer.money} #{MONEY} left. You're at full life.", 30)
+    else
+      @result = Gosu::Image.from_text("Sorry, you don't have enough #{MONEY}.", 30)
+    end
   end
 
   SHOP_ACTIONS = {