dragon program completed

Author: StevenXL

chapter_13_creating_new_classes_changing_existing_ones/dragon.rb

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+class Dragon
+    def initialize(name)
+        @name = name
+        @asleep = false
+        @stuff_in_belly = 10
+        @stuff_in_intestines = 0
+
+        puts "#{@name} is born...."
+    end
+
+    def feed
+        puts "You feed #{@name}"
+        @stuff_in_belly = 10
+        passage_of_time
+    end
+
+    def walk
+        puts "You walk #{@name}"
+        @stuff_in_intenstines = 0
+        passage_of_time
+    end
+
+    def put_to_bed
+        puts "You put #{@name} to bed."
+        @asleep = true
+
+        3.times do
+            if @asleep
+                passage_of_time
+            end
+
+            if @alseep
+                puts "#{@name} snores, filling the room withs smoke."
+            end
+        end
+
+        if @asleep
+            @alseep = false
+            puts "#{@name} wakes up slowly." 
+        end
+    end
+
+    def toss
+        puts "You toss #{@name} into the air."
+        puts "He giggles, which singes your eyebrows."
+        passage_of_time
+    end
+
+    def rock
+        puts "You rock #{@name} gently."
+        @alseep = true
+        puts "But he briefly doeses off."
+        passage_of_time
+
+        if @asleep
+            @asleep = false
+            puts "...but wakes up when you stop."
+        end
+    end
+
+    private
+    def hungry?
+        @stuff_in_belly <= 2
+    end
+
+    def poopy?
+        @stuff_in_intestines >= 8
+    end
+
+    def passage_of_time
+        if @stuff_in_belly > 0
+            @stuff_in_belly -= 1
+            @stuff_in_intestines += 1
+        else
+            if @asleep
+                @asleep = false
+                puts "He wakes up suddenly!"
+            end
+            
+            puts "#{@name} is starving. In desperation, he eats you."
+            exit
+        end
+
+        if @stuff_in_intestines >= 10
+            @stuff_in_intestines = 0
+            puts "Whoops! #{@name} had an accident...."
+        end
+
+        if hungry?
+            if @alseep
+                @asleep = false
+                puts "He wakes up suddenly!"
+            end
+            puts "#{@name}'s stomach grumbles..."
+        end
+
+        if poopy?
+            if @asleep
+                @asleep = false
+                puts "He wakes up suddenly!"
+            end
+
+            puts "#{@name} does the potty dance."
+        end
+    end
+end
+
+print "\nPlease enter a name for your dragon  >> "
+dragon_name = gets.chomp.capitalize
+puts
+pet = Dragon.new(dragon_name)
+
+print "\nYou now have to take care of your new pet. Or you can stop by typing \"STOP\".\n"
+
+loop do
+    puts
+    puts "You can FEED, WALK, TOSS, PUT_TO_BED, and ROCK"
+    puts
+    print "What would you like to do with Norbert? >> "
+    input = gets.chomp.upcase
+
+    case input
+    when "FEED"
+        pet.feed
+    when "WALK"
+        pet.walk
+    when "TOSS"
+        pet.toss
+    when "PUT_TO_BED"
+        pet.put_to_bed
+    when "ROCK"
+        pet.rock
+    when "STOP"
+        break
+    else
+        puts "Norbert can't do that. Try again, or input STOP to stop the game"
+    end
+end