1 files changed, 50 insertions, 0 deletions
diff --git a/go/game/attack.go b/go/game/attack.go
new file mode 100644
index 00000000..97881d48
--- /dev/null
+++ b/go/game/attack.go
@@ -0,0 +1,50 @@
+package game
+
+import (
+	"fmt"
+	"log"
+	"strconv"
+	"strings"
+)
+
+type Attack struct {
+	Damage int
+	Range  int
+}
+
+func INVALID_ATTACK() Attack {
+	return Attack{-1, -1}
+}
+
+func (a Attack) String() string {
+	if a == INVALID_ATTACK() {
+		return "invalid attack"
+	}
+
+	if a.Range == 1 {
+		return fmt.Sprintf("%d", a.Damage)
+	}
+	return fmt.Sprintf("%d range %d", a.Damage, a.Range)
+}
+
+func parseAttack(attack interface{}) Attack {
+	if damage, ok := attack.(int); ok {
+		return Attack{damage, 1}
+	}
+
+	attackStr := attack.(string)
+	tokens := strings.Split(attackStr, " ")
+	a, err := strconv.Atoi(tokens[0])
+	if err != nil {
+		log.Fatalf("Attack %s has no valid Damage value\n", attackStr)
+	}
+
+	r := 1
+	if len(tokens) == 3 {
+		r, err = strconv.Atoi(tokens[2])
+		if err != nil {
+			log.Fatalf("Attack %s has no valid Range value\n", attackStr)
+		}
+	}
+	return Attack{a, r}
+}