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package game
import (
"fmt"
"log"
"strconv"
"strings"
)
type Attack struct {
attacks []int
}
func INVALID_ATTACK(a Attack) bool {
return a.attacks == nil || len(a.attacks) == 0
}
func (a Attack) MaxRange() int {
return len(a.attacks)
}
func (a Attack) DamageInRange(r int) int {
if r > a.MaxRange() {
return 0
}
return a.attacks[r-1]
}
func (a Attack) String() string {
if INVALID_ATTACK(a) {
return "invalid attack"
}
if len(a.attacks) == 1 {
return fmt.Sprintf("%d", a.attacks[0])
}
r := a.MaxRange()
return fmt.Sprintf("%d range %d", a.DamageInRange(r), r)
}
func parseAttack(attack interface{}) Attack {
if damage, ok := attack.(int); ok {
return Attack{[]int{damage}}
}
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)
}
}
attacks := make([]int, 0, r)
for i := 0; i < r; i++ {
attacks = append(attacks, a)
}
return Attack{attacks}
}
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