Fix issue #20

- resolves problem of monsters' ownership transferring to a non existent spawn point

src/spawn.cpp

@@ -267,11 +267,6 @@ bool Spawn::findPlayer(const Position& pos)
 	return false;
 }
 
-bool Spawn::isInSpawnZone(const Position& pos)
-{
-	return Spawns::isInZone(centerPos, radius, pos);
-}
-
 bool Spawn::spawnMonster(uint32_t spawnId, spawnBlock_t sb, bool startup/* = false*/)
 {
 	bool isBlocked = !startup && findPlayer(sb.pos);
@@ -388,14 +383,10 @@ void Spawn::cleanup()
 {
 	auto it = spawnedMap.begin();
 	while (it != spawnedMap.end()) {
-		uint32_t spawnId = it->first;
 		Monster* monster = it->second;
 		if (monster->isRemoved()) {
 			monster->decrementReferenceCounter();
 			it = spawnedMap.erase(it);
-		} else if (!isInSpawnZone(monster->getPosition()) && spawnId != 0) {
-			spawnedMap.insert({0, monster});
-			it = spawnedMap.erase(it);
 		} else {
 			++it;
 		}

src/spawn.h

@@ -39,12 +39,10 @@ class Spawn
 		uint32_t getInterval() const {
 			return interval;
 		}
+
 		void startup();
-
 		void startSpawnCheck();
 		void stopEvent();
-
-		bool isInSpawnZone(const Position& pos);
 		void cleanup();
 
 	private: