public EntityData.PackedEntity serialize(
EntityRef entityRef,
Set<Class<? extends Component>> added,
Set<Class<? extends Component>> changed,
Set<Class<? extends Component>> removed,
FieldSerializeCheck<Component> fieldCheck) {
EntityData.PackedEntity.Builder entity = EntityData.PackedEntity.newBuilder();
ByteString.Output fieldIds = ByteString.newOutput();
ByteString.Output componentFieldCounts = ByteString.newOutput();
for (Class<? extends Component> componentType : added) {
Component component = entityRef.getComponent(componentType);
if (component == null) {
logger.error("Non-existent component marked as added: {}", componentType);
}
serializeComponentFull(
entityRef.getComponent(componentType),
false,
fieldCheck,
entity,
fieldIds,
componentFieldCounts,
true);
}
for (Class<? extends Component> componentType : changed) {
Component comp = entityRef.getComponent(componentType);
if (comp != null) {
serializeComponentFull(
comp, true, fieldCheck, entity, fieldIds, componentFieldCounts, false);
} else {
logger.error("Non-existent component marked as changed: {}", componentType);
}
}
for (Class<? extends Component> componentType : removed) {
entity.addRemovedComponent(idTable.get(componentType));
}
entity.setFieldIds(fieldIds.toByteString());
entity.setComponentFieldCounts(componentFieldCounts.toByteString());
if (entity.getFieldIds().isEmpty() && entity.getRemovedComponentCount() == 0) {
return null;
} else {
return entity.build();
}
}
private EntityData.PackedEntity.Builder serializeEntityDelta(
EntityRef entityRef, Prefab prefab, FieldSerializeCheck<Component> fieldCheck) {
EntityData.PackedEntity.Builder entity = EntityData.PackedEntity.newBuilder();
entity.setParentPrefabUri(prefab.getName());
Set<Class<? extends Component>> presentClasses = Sets.newHashSet();
ByteString.Output fieldIds = ByteString.newOutput();
ByteString.Output componentFieldCounts = ByteString.newOutput();
for (Component component : entityRef.iterateComponents()) {
if (!componentSerializeCheck.serialize(componentLibrary.getMetadata(component.getClass()))) {
continue;
}
presentClasses.add(component.getClass());
Component prefabComponent = prefab.getComponent(component.getClass());
if (prefabComponent == null) {
serializeComponentFull(
component, false, fieldCheck, entity, fieldIds, componentFieldCounts, true);
} else {
serializeComponentDelta(
prefabComponent, component, fieldCheck, entity, fieldIds, componentFieldCounts, true);
}
}
entity.setFieldIds(fieldIds.toByteString());
entity.setComponentFieldCounts(componentFieldCounts.toByteString());
for (Component prefabComponent : prefab.iterateComponents()) {
if (!presentClasses.contains(prefabComponent.getClass())
&& componentSerializeCheck.serialize(
componentLibrary.getMetadata(prefabComponent.getClass()))) {
entity.addRemovedComponent(idTable.get(prefabComponent.getClass()));
}
}
return entity;
}