implement TestAbility

go/dnd-character/dnd_character.go

@@ -1,6 +1,9 @@
 package dndcharacter
 
-import "math"
+import (
+	"math"
+	"math/rand"
+)
 
 type Character struct {
 	Strength     int
@@ -19,7 +22,34 @@ func Modifier(score int) int {
 
 // Ability uses randomness to generate the score for an ability
 func Ability() int {
-	panic("Please implement the Ability() function")
+	a := rollDice()
+	b := rollDice()
+	c := rollDice()
+	d := rollDice()
+
+	return getSum(a, b, c, d) - getMin(a, b, c, d)
+}
+
+// rollDice returns a random number between 1 and 6.
+func rollDice() int {
+	return rand.Intn(5) + 1
+}
+
+func getSum(slice ...int) (sum int) {
+	for _, x := range slice {
+		sum += x
+	}
+	return sum
+}
+
+func getMin(slice ...int) (minimum int) {
+	minimum = slice[0]
+	for _, x := range slice {
+		if x < minimum {
+			minimum = x
+		}
+	}
+	return minimum
 }
 
 // GenerateCharacter creates a new Character with random scores for abilities