22.单人机甲，地图上多个位置刷新X个

server/gameserver/metadata.cc

@@ -45,6 +45,15 @@ namespace MetaData
                 airraids.push_back(a8::XValue(str).GetInt());
             }
         }
+        {
+            std::vector<std::string> strings;
+            a8::Split(i->car_num_limit(), strings, '|');
+            for (auto& str : strings) {
+                std::vector<std::string> strings2;
+                a8::Split(str, strings2, ':');
+                car_num_limit[a8::XValue(strings2[0]).GetInt()] = a8::XValue(strings2[1]).GetInt();
+            }
+        }
         {
             std::vector<std::string> strings;
             a8::Split(i->game_start_buff_list(), strings, ':');
@@ -117,6 +126,12 @@ namespace MetaData
         return "";
     }
 
+    int Map::GetCarLimit(int car_id)
+    {
+        auto itr = car_num_limit.find(car_id);
+        return itr != car_num_limit.end() ? itr->second : 666;
+    }
+
     void MapThing::Init()
     {
         {

server/gameserver/metadata.h

@@ -30,9 +30,11 @@ namespace MetaData
         int refresh_robot_max_time = 0;
         std::vector<int> buff_list;
         a8::Vec2 first_safearea_center;
+        std::map<int, int> car_num_limit;
 
         void Init();
         std::string RandTemplate();
+        int GetCarLimit(int car_id);
     };
 
     struct Attr

server/gameserver/room.cc

@@ -2147,27 +2147,13 @@ void Room::CreateMonsterSpawnPoints()
 
 void Room::CreateLoots()
 {
+    std::vector<std::tuple<MetaData::Equip*, MetaData::MapTplThing*>> car_equips;
     for (auto& thing_tpl : *loots_) {
         int thing_id = thing_tpl->RandThing();
         MetaData::Equip* equip_meta = MetaMgr::Instance()->GetEquip(thing_id);
         if (equip_meta) {
             if (equip_meta->i->equip_type() == EQUIP_TYPE_CAR) {
-                int car_uniid = AllocUniid();
+                car_equips.push_back(std::make_tuple(equip_meta, thing_tpl));
-                Car* c = CreateCar(nullptr,
-                                   car_uniid,
-                                   equip_meta,
-                                   a8::Vec2
-                                   (
-                                    thing_tpl->i->x(),
-                                    thing_tpl->i->y()
-                                    ),
-                                   0);
-                if (c) {
-                    CarObject car;
-                    car.car_id = equip_meta->i->id();
-                    car.pos = c->GetPos();
-                    car_hash_[c->GetUniId()] = car;
-                }
             } else {
                 int loot_uniid = CreateLoot(
                                             equip_meta->i->id(),
@@ -2196,6 +2182,36 @@ void Room::CreateLoots()
             #endif
         }
     }
+
+    std::map<int, int> car_nums;
+    std::random_shuffle(car_equips.begin(), car_equips.end());
+    for (size_t i = 0; i < car_equips.size(); ++i) {
+        MetaData::Equip* equip_meta = std::get<0>(car_equips[i]);
+        MetaData::MapTplThing* thing_tpl = std::get<1>(car_equips[i]);
+
+        if (car_nums.find(equip_meta->i->id()) == car_nums.end()) {
+            car_nums[equip_meta->i->id()] = 0;
+        }
+        car_nums[equip_meta->i->id()] += 1;
+        if (car_nums[equip_meta->i->id()] <= ((MetaData::Map*)map_meta_)->GetCarLimit(equip_meta->i->id())) {
+            int car_uniid = AllocUniid();
+            Car* c = CreateCar(nullptr,
+                               car_uniid,
+                               equip_meta,
+                               a8::Vec2
+                               (
+                                thing_tpl->i->x(),
+                                thing_tpl->i->y()
+                                ),
+                               0);
+            if (c) {
+                CarObject car;
+                car.car_id = equip_meta->i->id();
+                car.pos = c->GetPos();
+                car_hash_[c->GetUniId()] = car;
+            }
+        }
+    }
 }
 
 void Room::CreateDropObjs()

server/tools/protobuild/metatable.proto

@@ -37,6 +37,7 @@ message Map
     optional string first_safearea_center = 14;
     optional int32 init_gas_ring = 15;
     optional string airraids = 16;
+    optional string car_num_limit = 17;
 }
 
 message MapThing