public EntityRef deserialize(EntityData.PackedEntity entityData) {
EntityBuilder target;
if (entityData.hasParentPrefabUri()) {
target = entityManager.newBuilder(entityData.getParentPrefabUri());
} else {
target = entityManager.newBuilder();
}
deserializeOnto(target, entityData);
if (entityData.hasId()) {
return entityManager.createEntityWithId(entityData.getId(), target.iterateComponents());
} else {
return target.build();
}
}
private EntityData.PackedEntity.Builder serializeEntityFull(
EntityRef entityRef, FieldSerializeCheck<Component> fieldCheck) {
EntityData.PackedEntity.Builder entity = EntityData.PackedEntity.newBuilder();
ByteString.Output fieldIds = ByteString.newOutput();
ByteString.Output componentFieldCounts = ByteString.newOutput();
for (Component component : entityRef.iterateComponents()) {
if (!componentSerializeCheck.serialize(componentLibrary.getMetadata(component.getClass()))) {
continue;
}
serializeComponentFull(
component, false, fieldCheck, entity, fieldIds, componentFieldCounts, true);
}
entity.setFieldIds(fieldIds.toByteString());
entity.setComponentFieldCounts(componentFieldCounts.toByteString());
return entity;
}
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;
}
public void deserializeOnto(
MutableComponentContainer entity,
EntityData.PackedEntity entityData,
FieldSerializeCheck<Component> fieldCheck) {
int fieldPos = 0;
for (int componentIndex = 0;
componentIndex < entityData.getComponentIdCount();
++componentIndex) {
Class<? extends Component> componentClass =
idTable.inverse().get((Integer) entityData.getComponentId(componentIndex));
ComponentMetadata<?> metadata = componentLibrary.getMetadata(componentClass);
if (metadata == null) {
logger.warn("Skipping unknown component {}", entityData.getComponentId(componentIndex));
fieldPos +=
UnsignedBytes.toInt(entityData.getComponentFieldCounts().byteAt(componentIndex));
continue;
}
if (!componentSerializeCheck.serialize(metadata)) {
fieldPos +=
UnsignedBytes.toInt(entityData.getComponentFieldCounts().byteAt(componentIndex));
continue;
}
Component component = entity.getComponent(metadata.getType());
boolean createdNewComponent = false;
if (component == null) {
createdNewComponent = true;
component = metadata.newInstance();
}
Serializer serializer = typeSerializationLibrary.getSerializerFor(metadata);
for (int fieldIndex = 0;
fieldIndex
< UnsignedBytes.toInt(entityData.getComponentFieldCounts().byteAt(componentIndex));
++fieldIndex) {
byte fieldId = entityData.getFieldIds().byteAt(fieldPos);
ReplicatedFieldMetadata fieldMetadata = metadata.getField(fieldId);
if (fieldMetadata != null && fieldCheck.shouldDeserialize(metadata, fieldMetadata)) {
logger.trace(
"Deserializing field {} of component {} as value {}",
fieldMetadata,
metadata,
entityData.getFieldValue(fieldPos));
serializer.deserializeOnto(
component,
fieldMetadata,
new ProtobufPersistedData(entityData.getFieldValue(fieldPos)),
deserializationContext);
}
fieldPos++;
}
if (createdNewComponent) {
entity.addComponent(component);
} else {
entity.saveComponent(component);
}
}
for (int componentId : entityData.getRemovedComponentList()) {
Class<? extends Component> componentClass = idTable.inverse().get(componentId);
ComponentMetadata<?> metadata = componentLibrary.getMetadata(componentClass);
if (componentSerializeCheck.serialize(metadata)) {
entity.removeComponent(metadata.getType());
}
}
}