Done Chapter 8

1 files changed, 12 insertions, 2 deletions

diff --git a/lib/interval.rb b/lib/interval.rb
index 0aa787f..3ba7e09 100644
--- a/lib/interval.rb
+++ b/lib/interval.rb
@@ -1,7 +1,7 @@
 class Interval
   def initialize(min = Float::INFINITY, max = -Float::INFINITY)
-    @min = min
-    @max = max
+    @min = min.to_f
+    @max = max.to_f
   end
 
   attr_reader :min, :max
@@ -17,4 +17,14 @@ class Interval
   def surround?(x)
     min < x && x < max
   end
+
+  def sample
+    rand(@min...@max)
+  end
+
+  def clamp(x)
+    return @min if x < @min
+    return @max if x > @max
+    x
+  end
 end