diff --git a/plugin/niuniu/utils.go b/plugin/niuniu/utils.go
new file mode 100644
index 0000000000..4c9fe3c957
--- /dev/null
+++ b/plugin/niuniu/utils.go
@@ -0,0 +1,250 @@
+// Package niuniu 牛牛大作战
+package niuniu
+
+import (
+	"fmt"
+	"math"
+	"math/rand"
+	"strings"
+	"time"
+)
+
+var (
+	jjProp     = []string{"击剑神器", "击剑神稽"}
+	dajiaoProp = []string{"伟哥", "媚药"}
+)
+
+// 检查字符串是否在切片中
+func contains(s string, array []string) bool {
+	for _, item := range array {
+		if strings.EqualFold(item, s) {
+			return true
+		}
+	}
+	return false
+}
+
+func randomChoice(options []string) string {
+	return options[rand.Intn(len(options))]
+}
+
+func updateMap(t string, d bool) {
+	value, ok := prop.Load(t)
+	if value == nil {
+		return
+	}
+	// 检查一次是否已经过期
+	if !d {
+		if time.Since(value.TimeLimit) > time.Minute*8 {
+			prop.Delete(t)
+		}
+		return
+	}
+	if ok {
+		prop.Store(t, &propsCount{
+			Count:     value.Count + 1,
+			TimeLimit: value.TimeLimit,
+		})
+	} else {
+		prop.Store(t, &propsCount{
+			Count:     1,
+			TimeLimit: time.Now(),
+		})
+	}
+	if time.Since(value.TimeLimit) > time.Minute*8 {
+		prop.Delete(t)
+	}
+}
+
+func generateRandomStingTwo(niuniu float64) (string, float64) {
+	probability := rand.Intn(100 + 1)
+	reduce := math.Abs(hitGlue(niuniu))
+	switch {
+	case probability <= 40:
+		niuniu += reduce
+		return randomChoice([]string{
+			fmt.Sprintf("你嘿咻嘿咻一下，促进了牛牛发育，牛牛增加%.2fcm了呢！", reduce),
+			fmt.Sprintf("你打了个舒服痛快的🦶呐，牛牛增加了%.2fcm呢！", reduce),
+		}), niuniu
+	case probability <= 60:
+		return randomChoice([]string{
+			"你打了个🦶，但是什么变化也没有，好奇怪捏~",
+			"你的牛牛刚开始变长了，可过了一会又回来了，什么变化也没有，好奇怪捏~",
+		}), niuniu
+	default:
+		niuniu -= reduce
+		if niuniu < 0 {
+			return randomChoice([]string{
+				fmt.Sprintf("哦吼！？看来你的牛牛凹进去了%.2fcm呢！", reduce),
+				fmt.Sprintf("你突发恶疾！你的牛牛凹进去了%.2fcm！", reduce),
+				fmt.Sprintf("笑死，你因为打🦶过度导致牛牛凹进去了%.2fcm！🤣🤣🤣", reduce),
+			}), niuniu
+		}
+		return randomChoice([]string{
+			fmt.Sprintf("阿哦，你过度打🦶，牛牛缩短%.2fcm了呢！", reduce),
+			fmt.Sprintf("你的牛牛变长了很多，你很激动地继续打🦶，然后牛牛缩短了%.2fcm呢！", reduce),
+			fmt.Sprintf("小打怡情，大打伤身，强打灰飞烟灭！你过度打🦶，牛牛缩短了%.2fcm捏！", reduce),
+		}), niuniu
+	}
+}
+
+func generateRandomString(niuniu float64) string {
+	switch {
+	case niuniu <= -100:
+		return "wtf？你已经进化成魅魔了！魅魔在击剑时有20%的几率消耗自身长度吞噬对方牛牛呢。"
+	case niuniu <= -50:
+		return "嗯....好像已经穿过了身体吧..从另一面来看也可以算是凸出来的吧?"
+	case niuniu <= -25:
+		return randomChoice([]string{
+			"这名女生，你的身体很健康哦！",
+			"WOW,真的凹进去了好多呢！",
+			"你已经是我们女孩子的一员啦！",
+		})
+	case niuniu <= -10:
+		return randomChoice([]string{
+			"你已经是一名女生了呢，",
+			"从女生的角度来说，你发育良好(,",
+			"你醒啦？你已经是一名女孩子啦！",
+			"唔...可以放进去一根手指了都...",
+		})
+	case niuniu <= 0:
+		return randomChoice([]string{
+			"安了安了，不要伤心嘛，做女生有什么不好的啊。",
+			"不哭不哭，摸摸头，虽然很难再长出来，但是请不要伤心啦啊！",
+			"加油加油！我看好你哦！",
+			"你醒啦？你现在已经是一名女孩子啦！",
+		})
+	case niuniu <= 10:
+		return randomChoice([]string{
+			"你行不行啊？细狗！",
+			"虽然短，但是小小的也很可爱呢。",
+			"像一只蚕宝宝。",
+			"长大了。",
+		})
+	case niuniu <= 25:
+		return randomChoice([]string{
+			"唔...没话说",
+			"已经很长了呢！",
+		})
+	case niuniu <= 50:
+		return randomChoice([]string{
+			"话说这种真的有可能吗？",
+			"厚礼谢！",
+		})
+	case niuniu <= 100:
+		return randomChoice([]string{
+			"已经突破天际了嘛...",
+			"唔...这玩意应该不会变得比我高吧？",
+			"你这个长度会死人的...！",
+			"你马上要进化成牛头人了！！",
+			"你是什么怪物，不要过来啊！！",
+		})
+	default:
+		return "惊世骇俗！你已经进化成牛头人了！牛头人在击剑时有20%的几率消耗自身长度吞噬对方牛牛呢。"
+	}
+}
+
+// fencing 击剑对决逻辑，返回对决结果和myLength的变化值
+func fencing(myLength, oppoLength float64) (string, float64, float64) {
+	devourLimit := 0.27
+
+	probability := rand.Intn(100) + 1
+
+	switch {
+	case oppoLength <= -100 && myLength > 0 && 10 < probability && probability <= 20:
+		change := hitGlue(oppoLength) + rand.Float64()*math.Log2(math.Abs(0.5*(myLength+oppoLength)))
+		myLength += change
+		return fmt.Sprintf("对方身为魅魔诱惑了你，你同化成魅魔！当前长度%.2fcm！", -myLength), -myLength, oppoLength
+
+	case oppoLength >= 100 && myLength > 0 && 10 < probability && probability <= 20:
+		change := math.Min(math.Abs(devourLimit*myLength), math.Abs(1.5*myLength))
+		myLength += change
+		return fmt.Sprintf("对方以牛头人的荣誉摧毁了你的牛牛！当前长度%.2fcm！", myLength), myLength, oppoLength
+
+	case myLength <= -100 && oppoLength > 0 && 10 < probability && probability <= 20:
+		change := hitGlue(myLength+oppoLength) + rand.Float64()*math.Log2(math.Abs(0.5*(myLength+oppoLength)))
+		oppoLength -= change
+		myLength -= change
+		return fmt.Sprintf("你身为魅魔诱惑了对方，吞噬了对方部分长度！当前长度%.2fcm！", myLength), myLength, oppoLength
+
+	case myLength >= 100 && oppoLength > 0 && 10 < probability && probability <= 20:
+		myLength -= oppoLength
+		oppoLength = 0.01
+		return fmt.Sprintf("你以牛头人的荣誉摧毁了对方的牛牛！当前长度%.2fcm！", myLength), myLength, oppoLength
+
+	default:
+		return determineResultBySkill(myLength, oppoLength)
+	}
+}
+
+// determineResultBySkill 根据击剑技巧决定结果
+func determineResultBySkill(myLength, oppoLength float64) (string, float64, float64) {
+	probability := rand.Intn(100) + 1
+	winProbability := calculateWinProbability(myLength, oppoLength) * 100
+	return applySkill(myLength, oppoLength,
+		float64(probability) <= winProbability)
+}
+
+// calculateWinProbability 计算胜率
+func calculateWinProbability(heightA, heightB float64) float64 {
+	pA := 0.9
+	heightRatio := math.Max(heightA, heightB) / math.Min(heightA, heightB)
+	reductionRate := 0.1 * (heightRatio - 1)
+	reduction := pA * reductionRate
+
+	adjustedPA := pA - reduction
+	return math.Max(adjustedPA, 0.01)
+}
+
+// applySkill 应用击剑技巧并生成结果
+func applySkill(myLength, oppoLength float64, increaseLength1 bool) (string, float64, float64) {
+	reduce := fence(oppoLength)
+	// 兜底操作
+	if reduce == 0 {
+		reduce = rand.Float64() + float64(rand.Intn(3))
+	}
+	if increaseLength1 {
+		myLength += reduce
+		oppoLength -= 0.8 * reduce
+		if myLength < 0 {
+			return fmt.Sprintf("哦吼！？你的牛牛在长大欸！长大了%.2fcm！", reduce), myLength, oppoLength
+		}
+		return fmt.Sprintf("你以绝对的长度让对方屈服了呢！你的长度增加%.2fcm，当前长度%.2fcm！", reduce, myLength), myLength, oppoLength
+	}
+	myLength -= reduce
+	oppoLength += 0.8 * reduce
+	if myLength < 0 {
+		return fmt.Sprintf("哦吼！？看来你的牛牛因为击剑而凹进去了呢🤣🤣🤣！凹进去了%.2fcm！", reduce), myLength, oppoLength
+	}
+	return fmt.Sprintf("对方以绝对的长度让你屈服了呢！你的长度减少%.2fcm，当前长度%.2fcm！", reduce, myLength), myLength, oppoLength
+}
+
+// fence 根据长度计算减少的长度
+func fence(rd float64) float64 {
+	rd = math.Abs(rd)
+	if rd == 0 {
+		rd = 1
+	}
+	r := hitGlue(rd)*2 + rand.Float64()*math.Log2(rd)
+
+	return float64(int(r * rand.Float64()))
+}
+
+func hitGlue(l float64) float64 {
+	if l == 0 {
+		l = 0.1
+	}
+	l = math.Abs(l)
+	switch {
+	case l > 1 && l <= 10:
+		return rand.Float64() * math.Log2(l*2)
+	case 10 < l && l <= 100:
+		return rand.Float64() * math.Log2(l*1.5)
+	case 100 < l && l <= 1000:
+		return rand.Float64() * (math.Log10(l*1.5) * 2)
+	case l > 1000:
+		return rand.Float64() * (math.Log10(l) * 2)
+	default:
+		return rand.Float64()
+	}
+}