1 files changed, 18 insertions, 0 deletions
diff --git a/interval.go b/interval.go
index 5f44f51..763939a 100644
--- a/interval.go
+++ b/interval.go
@@ -1,5 +1,9 @@
 package main
 
+import (
+  "math/rand"
+)
+
 type Interval struct {
   Min float64
   Max float64
@@ -16,3 +20,17 @@ func (i Interval) Include(x float64) bool {
 func (i Interval) Surround(x float64) bool {
   return i.Min < x && x < i.Max;
 }
+
+func (i Interval) Clamp(x float64) float64 {
+  if x < i.Min {
+    return i.Min;
+  }
+  if x > i.Max {
+    return i.Max;
+  }
+  return x;
+}
+
+func (i Interval) Sample() float64 {
+  return rand.Float64() * i.Size() + i.Min;
+}