Small (temp) fix. Prevent nulls from serialization.

lib/mapObjects/CObjectHandler.cpp

@@ -362,7 +362,7 @@ void CGObjectInstance::readJson(const JsonNode & json, bool withState)
 
 void CGObjectInstance::writeJsonOptions(JsonNode & json) const
 {
-
+	json.setType(JsonNode::DATA_STRUCT);
 }
 
 void CGObjectInstance::readJsonOptions(const JsonNode & json)
@@ -372,7 +372,7 @@ void CGObjectInstance::readJsonOptions(const JsonNode & json)
 
 void CGObjectInstance::writeJsonState(JsonNode & json) const
 {
-
+	json.setType(JsonNode::DATA_STRUCT);
 }
 
 void CGObjectInstance::readJsonState(const JsonNode & json)

lib/mapObjects/ObjectTemplate.cpp

@@ -258,10 +258,10 @@ void ObjectTemplate::readJson(const JsonNode &node)
 
 void ObjectTemplate::writeJson(JsonNode & node) const
 {
+	node.setType(JsonNode::DATA_STRUCT);
 	//todo: ObjectTemplate::writeJson
 }
 
-
 ui32 ObjectTemplate::getWidth() const
 {
 	return usedTiles.empty() ? 0 : usedTiles.front().size();

lib/mapping/MapFormatJson.cpp

@@ -72,6 +72,9 @@ namespace TriggeredEventsDetail
 
 		//todo: save identifier
 
+		if(event.objectType != -1)
+			data["type"].Float() = event.objectType;
+
 		if(event.value != -1)
 			data["value"].Float() = event.value;
 
@@ -84,7 +87,8 @@ namespace TriggeredEventsDetail
 			position[2].Float() = event.position.z;
 		}
 
-		asVector.push_back(data);
+		if(!data.isNull())
+			asVector.push_back(data);
 
 		return std::move(json);
 	}
@@ -590,8 +594,6 @@ void CMapLoaderJson::MapObjectLoader::construct()
 		return;
 	}
 
-	si32 type = owner->getIdentifier("object", typeName);
-
 	handler = VLC->objtypeh->getHandlerFor(typeName, subTypeName);
 
 	instance = handler->create(ObjectTemplate());