Merge pull request #148 from jamiemccarthy/51-hurkle-ruby

Hurkle in Ruby

51 Hurkle/ruby/hurkle.rb

@@ -0,0 +1,95 @@
+MAX_GUESSES = 5
+GRID_SIZE = 10
+
+class Point < Object
+  attr_accessor :x
+  attr_accessor :y
+
+  def initialize(text="")
+    x, y = text.split(",").map(&:strip)
+    @x = (x || rand(GRID_SIZE).floor).to_i
+    @y = (y || rand(GRID_SIZE).floor).to_i
+  end
+
+  def to_s
+    "#{@x}, #{@y}"
+  end
+
+  def ==(other_point)
+    @x == other_point.x && @y == other_point.y
+  end
+
+  def direction_to(other_point)
+    (  @y < other_point.y ? "NORTH" : "SOUTH" unless @y == other_point.y ).to_s +
+      (@x < other_point.x ? "EAST"  : "WEST"  unless @x == other_point.x ).to_s
+  end
+end
+
+def main
+  say_introduction
+
+  loop do
+    hurkle_point = Point.new
+    found = false
+    (1..MAX_GUESSES).each do |guess_num|
+      found = guess(hurkle_point, guess_num)
+      break if found
+    end
+    say_failure(hurkle_point) if not found
+    say_play_again
+  end
+
+end
+
+def say_introduction
+  puts " " * 33 + "HURKLE"
+  puts " " * 15 + "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY"
+  3.times { puts }
+  puts
+  puts "A HURKLE IS HIDING ON A #{GRID_SIZE} BY #{GRID_SIZE} GRID. HOMEBASE"
+  puts "ON THE GRID IS POINT 0,0 IN THE SOUTHWEST CORNER,"
+  puts "AND ANY POINT ON THE GRID IS DESIGNATED BY A"
+  puts "PAIR OF WHOLE NUMBERS SEPERATED BY A COMMA. THE FIRST"
+  puts "NUMBER IS THE HORIZONTAL POSITION AND THE SECOND NUMBER"
+  puts "IS THE VERTICAL POSITION. YOU MUST TRY TO"
+  puts "GUESS THE HURKLE'S GRIDPOINT. YOU GET #{MAX_GUESSES} TRIES."
+  puts "AFTER EACH TRY, I WILL TELL YOU THE APPROXIMATE"
+  puts "DIRECTION TO GO TO LOOK FOR THE HURKLE."
+  puts
+end
+
+def guess(hurkle_point, guess_num)
+  print "GUESS # #{guess_num} ? "
+  guess_point = Point.new(gets.chomp)
+  if guess_point == hurkle_point
+    say_success(guess_num)
+    true
+  else
+    say_where_to_go(hurkle_point, guess_point)
+    false
+  end
+end
+
+def say_success(guess_num)
+  puts
+  puts "YOU FOUND IT IN #{guess_num} GUESSES!"
+end
+
+def say_where_to_go(hurkle_point, guess_point)
+  puts "GO #{guess_point.direction_to(hurkle_point)}"
+  puts
+end
+
+def say_failure(hurkle_point)
+  puts
+  puts "SORRY, THAT'S " + MAX_GUESSES.to_s + " GUESSES."
+  puts "THE HURKLE IS AT #{hurkle_point}"
+end
+
+def say_play_again
+  puts
+  puts "LET'S PLAY AGAIN, HURKLE IS HIDING."
+  puts
+end
+
+main