Spawns: add function to find a spawn to place a creature on

src/client/creatures.cpp

@@ -369,6 +369,20 @@ SpawnPtr CreatureManager::getSpawn(const Position& centerPos)
     return nullptr;
 }
 
+SpawnPtr CreatureManager::getSpawnForPlacePos(const Position& pos)
+{
+    for (const auto& pair : m_spawns) {
+        const Position& centerPos = pair.first;
+        const SpawnPtr& spawn = pair.second;
+
+        if (isInZone(pos, centerPos, spawn->getRadius()))
+            return spawn;
+    }
+
+    g_logger.debug(stdext::format("failed to find spawn at %s", stdext::to_string(pos)));
+    return nullptr;
+}
+
 SpawnPtr CreatureManager::addSpawn(const Position& centerPos, int radius)
 {
     auto iter = m_spawns.find(centerPos);

src/client/creatures.h

@@ -121,6 +121,7 @@ public:
     const CreatureTypePtr& getCreatureByLook(int look);
 
     SpawnPtr getSpawn(const Position& centerPos);
+    SpawnPtr getSpawnForPlacePos(const Position& pos);
     SpawnPtr addSpawn(const Position& centerPos, int radius);
 
     bool isLoaded() { return m_loaded; }

src/client/luafunctions.cpp

@@ -155,6 +155,7 @@ void Client::registerLuaFunctions()
     g_lua.bindSingletonFunction("g_creatures", "getCreatureByName", &CreatureManager::getCreatureByName, &g_creatures);
     g_lua.bindSingletonFunction("g_creatures", "getCreatureByLook", &CreatureManager::getCreatureByLook, &g_creatures);
     g_lua.bindSingletonFunction("g_creatures", "getSpawn", &CreatureManager::getSpawn, &g_creatures);
+    g_lua.bindSingletonFunction("g_creatures", "getSpawnForPlacePos", &CreatureManager::getSpawnForPlacePos, &g_creatures);
     g_lua.bindSingletonFunction("g_creatures", "addSpawn", &CreatureManager::addSpawn, &g_creatures);
     g_lua.bindSingletonFunction("g_creatures", "loadMonsters", &CreatureManager::loadMonsters, &g_creatures);
     g_lua.bindSingletonFunction("g_creatures", "loadNpcs", &CreatureManager::loadNpcs, &g_creatures);