From c56483e85d6552321ba0f9c2060fef29dd1dd112 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwei@kingsome.cn>
Date: Wed, 30 Jun 2021 09:50:35 +0000
Subject: [PATCH] add coexist_num

---
 server/gameserver/creature.cc           | 26 +++++++++++++++++++++----
 server/gameserver/creature.h            |  2 ++
 server/tools/protobuild/metatable.proto |  1 +
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index cf0211c..8b99dcd 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -163,16 +163,27 @@ Buff* Creature::GetBuffById(int buff_id)
     return nullptr;
 }
 
+int Creature::GetBuffNum(int buff_id)
+{
+    int num = 0;
+    for (Buff& buff : buff_list_) {
+        if (buff.meta->i->buff_id() == buff_id) {
+            ++num;
+        }
+    }
+    return num;
+}
+
 void Creature::AddBuff(Creature* caster,
                        MetaData::Buff* buff_meta,
                        int skill_lv,
                        MetaData::Skill* buff_skill_meta)
 {
-    #if 0
-    if (GetBuffById(buff_meta->i->buff_id())) {
-        return;
+    if (buff_meta->i->coexist_num() > 0){
+        if (GetBuffNum(buff_meta->i->buff_id()) >= buff_meta->i->coexist_num()) {
+            return;
+        }
     }
-    #endif
     if (IsImmuneBuffEffect(buff_meta->i->buff_effect())) {
         return;
     }
@@ -345,6 +356,13 @@ void Creature::RemoveBuffById(int buff_id)
 #endif
 }
 
+void Creature::ClearBuffById(int buff_id)
+{
+    while (GetBuffById(buff_id)) {
+        RemoveBuffById(buff_id);
+    }
+}
+
 void Creature::SendDebugMsg(const std::string& debug_msg)
 {
 
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index ad636e5..764946e 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -93,6 +93,7 @@ class Creature : public MoveableEntity
     bool HasBuffEffect(int buff_effect_id);
     Buff* GetBuffByEffectId(int effect_id);
     Buff* GetBuffById(int buff_id);
+    int GetBuffNum(int buff_id);
     void AddBuff(Creature* caster,
                  MetaData::Buff* buff_meta,
                  int skill_lv,
@@ -101,6 +102,7 @@ class Creature : public MoveableEntity
     void MustBeAddBuff(Creature* caster, int buff_id);
     void TryAddBuff(Creature* caster, int buff_id);
     void RemoveBuffById(int buff_id);
+    void ClearBuffById(int buff_id);
     void RecalcBuffAttr();
     void RemoveBuffByEffectId(int buff_effect_id);
     void ClearBuffList();
diff --git a/server/tools/protobuild/metatable.proto b/server/tools/protobuild/metatable.proto
index 36379e0..893bda3 100755
--- a/server/tools/protobuild/metatable.proto
+++ b/server/tools/protobuild/metatable.proto
@@ -247,6 +247,7 @@ message Buff
     optional int32 only_self = 15;
     optional int32 depend_effect = 16;
     optional string child_buff = 17;
+    optional int32 coexist_num = 18;
 }
 
 message Drop