```

feat(fight): 实现精灵大乱斗模式并优化对战逻辑

新增大乱斗模式(PET_MELEE)支持，重构原有精灵王之战相关逻辑。
更新战斗初始化流程，添加随机精灵选择机制。
调整玩家匹配与取消邀请接口实现方式。
完善战斗结束处理函数，移除未实现异常抛出。
```

logic/service/fight/input.go

@@ -6,8 +6,8 @@ import (
 	"blazing/logic/service/fight/action"
 	"blazing/logic/service/fight/info"
 	"blazing/logic/service/fight/input"
+	"blazing/modules/blazing/model"
 	"math/rand"
-	"sort"
 	"sync"
 	"time"
 
@@ -100,81 +100,80 @@ func (f *FightC) LoadPercent(c common.PlayerI, percent int32) {
 	})
 }
 
-func (f *FightC) initplayer(c common.PlayerI, opp bool) bool {
+func (f *FightC) initplayer(c common.PlayerI) *input.Input {
 	if len(c.GetInfo().PetList) == 0 {
-		return false
+		return nil
 
 	}
 
-	temp := input.NewInput(f, c)
-	temp.AllPet = make([]*info.BattlePetEntity, 0)
-	temp.InitAttackValue()
+	in := input.NewInput(f, c)
+	in.AllPet = make([]*info.BattlePetEntity, 0)
+	in.InitAttackValue()
 	for i := 0; i < len(c.GetInfo().PetList); i++ {
-		temp.AllPet = append(temp.AllPet, info.CreateBattlePetEntity(&c.GetInfo().PetList[i], f.rand))
+		in.AllPet = append(in.AllPet, info.CreateBattlePetEntity(&c.GetInfo().PetList[i], f.rand))
 
 	}
 
-	sort.Slice(temp.AllPet, func(i, j int) bool {
-		x, y := temp.AllPet[i], temp.AllPet[j]
-		// 若x血量>0且y血量=0，则x排在前
-		if x.Info.Hp > 0 && y.Info.Hp <= 0 {
-			return true
-		}
-		// 若x血量=0且y血量>0，则x排在后
-		if x.Info.Hp <= 0 && y.Info.Hp > 0 {
-			return false
-		}
-		// 同类型（都>0或都=0）保持原有顺序
-		return i < j
-	})
+	in.SortPet()
 
 	switch f.Info.Mode {
 	case info.BattleMode.SINGLE_MODE:
-		temp.AllPet = temp.AllPet[:1]
+		in.AllPet = in.AllPet[:1]
+	case info.BattleMode.PET_MELEE:
+		in.AllPet = make([]*info.BattlePetEntity, 0)
+		for _, v := range RandomElfIDs(3) {
+			p := model.GenPetInfo(v, 24, -1, -1, -1, 100)
+			p.CatchTime = uint32(v)
+			in.AllPet = append(in.AllPet, info.CreateBattlePetEntity(p, f.rand))
+
+		}
+		//in.AllPet = in.AllPet[:3]
 	default:
 	}
-	if opp {
-		switch f.Info.Status {
-		case info.BattleStatus.FIGHT_WITH_PLAYER:
 
-		default:
-			temp.Finished = true //PVE 默认boss数据直接加载完成
-		}
-		f.Opp = temp //这里是对方的
+	in.CurrentPet = in.AllPet[0]
+	return in
+}
 
-		copier.Copy(&f.Info.OpponentInfo, f.Opp.Player.GetInfo())
-		f.Info.OpponentPetList = make([]info.ReadyFightPetInfo, len(temp.AllPet))
-		for i := 0; i < len(temp.AllPet); i++ {
+// RandomElfIDs 从1-2000中随机抽取n个不重复的精灵ID
+func RandomElfIDs(n int) []int {
+	if n <= 0 || n > 2000 {
+		return nil
+	}
 
-			err := copier.CopyWithOption(&f.Info.OpponentPetList[i], &temp.AllPet[i].Info, copier.Option{IgnoreEmpty: true, DeepCopy: true})
-			if err != nil {
-				panic(err)
-			}
-		}
-	} else {
-		f.Our = temp
+	// 用map记录已抽取的ID，避免重复
+	used := make(map[int]struct{}, n)
+	ids := make([]int, 0, n)
 
-		copier.Copy(&f.Info.OurInfo, f.Our.Player.GetInfo())
-		f.Info.OurPetList = make([]info.ReadyFightPetInfo, len(temp.AllPet))
-		for i := 0; i < len(temp.AllPet); i++ {
+	for len(ids) < n {
+		// 生成1-2000的随机数
+		id := rand.Intn(2000) + 1 // rand.Intn(2000)生成0-1999，+1后为1-2000
 
-			err := copier.CopyWithOption(&f.Info.OurPetList[i], &temp.AllPet[i].Info, copier.Option{IgnoreEmpty: true, DeepCopy: true})
-			if err != nil {
-				panic(err)
-			}
+		// 检查是否已抽取
+		if _, exists := used[id]; !exists {
+			used[id] = struct{}{}
+			ids = append(ids, id)
 		}
 	}
 
-	for _, v := range temp.AllPet {
-		if v.Info.Hp == 0 {
-			v.NotAlive = true
-
-		}
-
+	return ids
+}
+func initfightready(in *input.Input) (info.FightUserInfo, []info.ReadyFightPetInfo) {
+	t := make([]info.ReadyFightPetInfo, len(in.AllPet))
+	userindo := info.FightUserInfo{
+		UserID: in.UserID,
+		Nick:   in.Player.GetInfo().Nick,
 	}
 
-	temp.CurrentPet = temp.AllPet[0]
-	return true
+	for i := 0; i < len(in.AllPet); i++ {
+
+		err := copier.CopyWithOption(&t[i], &in.AllPet[i].Info, copier.Option{IgnoreEmpty: true, DeepCopy: true})
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	return userindo, t
 }
 
 // 创建新战斗,邀请方和被邀请方,或者玩家和野怪方
@@ -192,15 +191,18 @@ func NewFight(mode, status info.EnumBattleMode, p1 common.PlayerI, p2 common.Pla
 	}
 	f.Info.Status = status //房主
 	f.Info.Mode = mode
-	ok := f.initplayer(p1, false)
-	if !ok {
-		return nil
+	f.Our, f.Opp = f.initplayer(p1), f.initplayer(p2)
+
+	f.Info.OurInfo, f.Info.OurPetList = initfightready(f.Our)
+	f.Info.OpponentInfo, f.Info.OpponentPetList = initfightready(f.Opp)
+
+	switch f.Info.Status {
+	case info.BattleStatus.FIGHT_WITH_PLAYER:
+
+	default:
+		f.Our.Finished = true //PVE 默认boss数据直接加载完成
 	}
 
-	ok = f.initplayer(p2, true)
-	if !ok {
-		return nil
-	}
 	f.Our.SetOPP(f.Opp)
 	f.Opp.SetOPP(f.Our)