Add ChoiceMap

src/util/arrays.go

 package util
 
 import (
-	// "fmt"
+	"fmt"
 	"math/rand"
 	"time"
 )
 // 	return ary[rand.Intn(l)]
 // }
 
+func Debug(msg ...interface{}) {
+	fmt.Println(msg)
+}
+
 func ChoiceInt(ary []int) int {
 	rand.Seed(time.Now().UnixNano())
 	l := len(ary)
 	// fmt.Printf("Selected %s (element %d)\n", ary[r], r)
 	return ary[r]
 }
+
+func ChoiceMap(ary map[string]int) (string, int) {
+	rand.Seed(time.Now().UnixNano())
+	l := len(ary)
+	// fmt.Println(l)
+	key, val, rot := "", 0, 0
+	for key == "" {
+		Debug(rot, key, val)
+		for k, v := range ary {
+			Debug(k, v)
+			// Debug(rot)
+			r := 0
+			if rot < 3 {
+				r = rand.Intn(l)
+			}
+			if r == 0 {
+				key, val = k, v
+				break
+			}
+		}
+		rot++
+		// fmt.Println(key, val)
+	}
+	return key, val
+}