feat: 实现战斗效果逻辑和接口重构

logic/service/fight/boss/NewSeIdx_47.go

@@ -1,15 +1,40 @@
 package effect
 
 import (
+	"blazing/logic/service/fight/info"
 	"blazing/logic/service/fight/input"
+
+	"github.com/alpacahq/alpacadecimal"
 )
 
 // 47. 敌我双方伤害降低n%（a1: n）
-// TODO: 实现敌我双方伤害降低n%（a1: n）的核心逻辑
 type NewSel47 struct {
 	NewSel0
 }
 
+func (e *NewSel47) DamageAdd(t *info.DamageZone) bool {
+	if t.Type != info.DamageType.Red {
+		return true
+	}
+
+	ratio := alpacadecimal.NewFromInt(100).Sub(e.Args()[0]).Div(alpacadecimal.NewFromInt(100))
+	t.Damage = t.Damage.Mul(ratio)
+	return true
+}
+
+func (e *NewSel47) DamageDivEx(t *info.DamageZone) bool {
+	if !e.IsOwner() {
+		return true
+	}
+	if t.Type != info.DamageType.Red {
+		return true
+	}
+
+	ratio := alpacadecimal.NewFromInt(100).Sub(e.Args()[0]).Div(alpacadecimal.NewFromInt(100))
+	t.Damage = t.Damage.Mul(ratio)
+	return true
+}
+
 func init() {
 	input.InitEffect(input.EffectType.NewSel, 47, &NewSel47{})
 }