QUuid EntityScriptingInterface::addEntity(const EntityItemProperties& properties) {
EntityItemProperties propertiesWithSimID = convertLocationFromScriptSemantics(properties);
propertiesWithSimID.setDimensionsInitialized(properties.dimensionsChanged());
auto dimensions = propertiesWithSimID.getDimensions();
float volume = dimensions.x * dimensions.y * dimensions.z;
auto density = propertiesWithSimID.getDensity();
auto newVelocity = propertiesWithSimID.getVelocity().length();
float cost = calculateCost(density * volume, 0, newVelocity);
cost *= costMultiplier;
if (cost > _currentAvatarEnergy) {
return QUuid();
}
EntityItemID id = EntityItemID(QUuid::createUuid());
// If we have a local entity tree set, then also update it.
bool success = true;
if (_entityTree) {
_entityTree->withWriteLock([&] {
EntityItemPointer entity = _entityTree->addEntity(id, propertiesWithSimID);
if (entity) {
if (propertiesWithSimID.parentRelatedPropertyChanged()) {
// due to parenting, the server may not know where something is in world-space, so include the bounding cube.
bool success;
AACube queryAACube = entity->getQueryAACube(success);
if (success) {
propertiesWithSimID.setQueryAACube(queryAACube);
}
}
if (_bidOnSimulationOwnership) {
// This Node is creating a new object. If it's in motion, set this Node as the simulator.
auto nodeList = DependencyManager::get<NodeList>();
const QUuid myNodeID = nodeList->getSessionUUID();
// and make note of it now, so we can act on it right away.
propertiesWithSimID.setSimulationOwner(myNodeID, SCRIPT_POKE_SIMULATION_PRIORITY);
entity->setSimulationOwner(myNodeID, SCRIPT_POKE_SIMULATION_PRIORITY);
}
entity->setLastBroadcast(usecTimestampNow());
} else {
qCDebug(entities) << "script failed to add new Entity to local Octree";
success = false;
}
});
}
// queue the packet
if (success) {
emit debitEnergySource(cost);
queueEntityMessage(PacketType::EntityAdd, id, propertiesWithSimID);
}
return id;
}
QUuid EntityScriptingInterface::editEntity(QUuid id, const EntityItemProperties& scriptSideProperties) {
EntityItemProperties properties = scriptSideProperties;
auto dimensions = properties.getDimensions();
float volume = dimensions.x * dimensions.y * dimensions.z;
auto density = properties.getDensity();
auto newVelocity = properties.getVelocity().length();
float oldVelocity = { 0.0f };
EntityItemID entityID(id);
if (!_entityTree) {
queueEntityMessage(PacketType::EntityEdit, entityID, properties);
//if there is no local entity entity tree, no existing velocity, use 0.
float cost = calculateCost(density * volume, oldVelocity, newVelocity);
cost *= costMultiplier;
if (cost > _currentAvatarEnergy) {
return QUuid();
} else {
//debit the avatar energy and continue
emit debitEnergySource(cost);
}
return id;
}
// If we have a local entity tree set, then also update it.
bool updatedEntity = false;
_entityTree->withWriteLock([&] {
if (scriptSideProperties.parentRelatedPropertyChanged()) {
// All of parentID, parentJointIndex, position, rotation are needed to make sense of any of them.
// If any of these changed, pull any missing properties from the entity.
EntityItemPointer entity = _entityTree->findEntityByEntityItemID(entityID);
if (!entity) {
return;
}
//existing entity, retrieve old velocity for check down below
oldVelocity = entity->getVelocity().length();
if (!scriptSideProperties.parentIDChanged()) {
properties.setParentID(entity->getParentID());
}
if (!scriptSideProperties.parentJointIndexChanged()) {
properties.setParentJointIndex(entity->getParentJointIndex());
}
if (!scriptSideProperties.localPositionChanged() && !scriptSideProperties.positionChanged()) {
properties.setPosition(entity->getPosition());
}
if (!scriptSideProperties.localRotationChanged() && !scriptSideProperties.rotationChanged()) {
properties.setRotation(entity->getOrientation());
}
}
properties = convertLocationFromScriptSemantics(properties);
float cost = calculateCost(density * volume, oldVelocity, newVelocity);
cost *= costMultiplier;
if (cost > _currentAvatarEnergy) {
updatedEntity = false;
} else {
//debit the avatar energy and continue
updatedEntity = _entityTree->updateEntity(entityID, properties);
if (updatedEntity) {
emit debitEnergySource(cost);
}
}
});
if (!updatedEntity) {
return QUuid();
}
_entityTree->withReadLock([&] {
EntityItemPointer entity = _entityTree->findEntityByEntityItemID(entityID);
if (entity) {
// make sure the properties has a type, so that the encode can know which properties to include
properties.setType(entity->getType());
bool hasTerseUpdateChanges = properties.hasTerseUpdateChanges();
bool hasPhysicsChanges = properties.hasMiscPhysicsChanges() || hasTerseUpdateChanges;
if (_bidOnSimulationOwnership && hasPhysicsChanges) {
auto nodeList = DependencyManager::get<NodeList>();
const QUuid myNodeID = nodeList->getSessionUUID();
if (entity->getSimulatorID() == myNodeID) {
// we think we already own the simulation, so make sure to send ALL TerseUpdate properties
if (hasTerseUpdateChanges) {
entity->getAllTerseUpdateProperties(properties);
}
// TODO: if we knew that ONLY TerseUpdate properties have changed in properties AND the object
// is dynamic AND it is active in the physics simulation then we could chose to NOT queue an update
// and instead let the physics simulation decide when to send a terse update. This would remove
// the "slide-no-rotate" glitch (and typical double-update) that we see during the "poke rolling
// balls" test. However, even if we solve this problem we still need to provide a "slerp the visible
// proxy toward the true physical position" feature to hide the final glitches in the remote watcher's
// simulation.
if (entity->getSimulationPriority() < SCRIPT_POKE_SIMULATION_PRIORITY) {
// we re-assert our simulation ownership at a higher priority
properties.setSimulationOwner(myNodeID, SCRIPT_POKE_SIMULATION_PRIORITY);
}
} else {
// we make a bid for simulation ownership
properties.setSimulationOwner(myNodeID, SCRIPT_POKE_SIMULATION_PRIORITY);
entity->pokeSimulationOwnership();
}
}
if (properties.parentRelatedPropertyChanged() && entity->computePuffedQueryAACube()) {
properties.setQueryAACube(entity->getQueryAACube());
}
entity->setLastBroadcast(usecTimestampNow());
// if we've moved an entity with children, check/update the queryAACube of all descendents and tell the server
// if they've changed.
entity->forEachDescendant([&](SpatiallyNestablePointer descendant) {
if (descendant->getNestableType() == NestableType::Entity) {
if (descendant->computePuffedQueryAACube()) {
EntityItemPointer entityDescendant = std::static_pointer_cast<EntityItem>(descendant);
EntityItemProperties newQueryCubeProperties;
newQueryCubeProperties.setQueryAACube(descendant->getQueryAACube());
newQueryCubeProperties.setLastEdited(properties.getLastEdited());
queueEntityMessage(PacketType::EntityEdit, descendant->getID(), newQueryCubeProperties);
entityDescendant->setLastBroadcast(usecTimestampNow());
}
}
});
}
});
queueEntityMessage(PacketType::EntityEdit, entityID, properties);
return id;
}
// TODO: Implement support for edit packets that can span an MTU sized buffer. We need to implement a mechanism for the
// encodeEntityEditPacket() method to communicate the the caller which properties couldn't fit in the buffer. Similar
// to how we handle this in the Octree streaming case.
//
// TODO: Right now, all possible properties for all subclasses are handled here. Ideally we'd prefer
// to handle this in a more generic way. Allowing subclasses of EntityItem to register their properties
//
// TODO: There's a lot of repeated patterns in the code below to handle each property. It would be nice if the property
// registration mechanism allowed us to collapse these repeated sections of code into a single implementation that
// utilized the registration table to shorten up and simplify this code.
//
// TODO: Implement support for paged properties, spanning MTU, and custom properties
//
// TODO: Implement support for script and visible properties.
//
bool EntityItemProperties::encodeEntityEditPacket(PacketType command, EntityItemID id, const EntityItemProperties& properties,
unsigned char* bufferOut, int sizeIn, int& sizeOut) {
OctreePacketData ourDataPacket(false, sizeIn); // create a packetData object to add out packet details too.
OctreePacketData* packetData = &ourDataPacket; // we want a pointer to this so we can use our APPEND_ENTITY_PROPERTY macro
bool success = true; // assume the best
OctreeElement::AppendState appendState = OctreeElement::COMPLETED; // assume the best
sizeOut = 0;
// TODO: We need to review how jurisdictions should be handled for entities. (The old Models and Particles code
// didn't do anything special for jurisdictions, so we're keeping that same behavior here.)
//
// Always include the root octcode. This is only because the OctreeEditPacketSender will check these octcodes
// to determine which server to send the changes to in the case of multiple jurisdictions. The root will be sent
// to all servers.
glm::vec3 rootPosition(0);
float rootScale = 0.5f;
unsigned char* octcode = pointToOctalCode(rootPosition.x, rootPosition.y, rootPosition.z, rootScale);
success = packetData->startSubTree(octcode);
delete[] octcode;
// assuming we have rome to fit our octalCode, proceed...
if (success) {
// Now add our edit content details...
bool isNewEntityItem = (id.id == NEW_ENTITY);
// id
// encode our ID as a byte count coded byte stream
QByteArray encodedID = id.id.toRfc4122(); // NUM_BYTES_RFC4122_UUID
// encode our ID as a byte count coded byte stream
ByteCountCoded<quint32> tokenCoder;
QByteArray encodedToken;
// special case for handling "new" modelItems
if (isNewEntityItem) {
// encode our creator token as a byte count coded byte stream
tokenCoder = id.creatorTokenID;
encodedToken = tokenCoder;
}
// encode our type as a byte count coded byte stream
ByteCountCoded<quint32> typeCoder = (quint32)properties.getType();
QByteArray encodedType = typeCoder;
quint64 updateDelta = 0; // this is an edit so by definition, it's update is in sync
ByteCountCoded<quint64> updateDeltaCoder = updateDelta;
QByteArray encodedUpdateDelta = updateDeltaCoder;
EntityPropertyFlags propertyFlags(PROP_LAST_ITEM);
EntityPropertyFlags requestedProperties = properties.getChangedProperties();
EntityPropertyFlags propertiesDidntFit = requestedProperties;
// TODO: we need to handle the multi-pass form of this, similar to how we handle entity data
//
// If we are being called for a subsequent pass at appendEntityData() that failed to completely encode this item,
// then our modelTreeElementExtraEncodeData should include data about which properties we need to append.
//if (modelTreeElementExtraEncodeData && modelTreeElementExtraEncodeData->includedItems.contains(getEntityItemID())) {
// requestedProperties = modelTreeElementExtraEncodeData->includedItems.value(getEntityItemID());
//}
LevelDetails entityLevel = packetData->startLevel();
// Last Edited quint64 always first, before any other details, which allows us easy access to adjusting this
// timestamp for clock skew
quint64 lastEdited = properties.getLastEdited();
bool successLastEditedFits = packetData->appendValue(lastEdited);
bool successIDFits = packetData->appendValue(encodedID);
if (isNewEntityItem && successIDFits) {
successIDFits = packetData->appendValue(encodedToken);
}
bool successTypeFits = packetData->appendValue(encodedType);
// NOTE: We intentionally do not send "created" times in edit messages. This is because:
// 1) if the edit is to an existing entity, the created time can not be changed
// 2) if the edit is to a new entity, the created time is the last edited time
// TODO: Should we get rid of this in this in edit packets, since this has to always be 0?
bool successLastUpdatedFits = packetData->appendValue(encodedUpdateDelta);
int propertyFlagsOffset = packetData->getUncompressedByteOffset();
QByteArray encodedPropertyFlags = propertyFlags;
int oldPropertyFlagsLength = encodedPropertyFlags.length();
bool successPropertyFlagsFits = packetData->appendValue(encodedPropertyFlags);
int propertyCount = 0;
bool headerFits = successIDFits && successTypeFits && successLastEditedFits
&& successLastUpdatedFits && successPropertyFlagsFits;
int startOfEntityItemData = packetData->getUncompressedByteOffset();
if (headerFits) {
bool successPropertyFits;
propertyFlags -= PROP_LAST_ITEM; // clear the last item for now, we may or may not set it as the actual item
// These items would go here once supported....
// PROP_PAGED_PROPERTY,
// PROP_CUSTOM_PROPERTIES_INCLUDED,
APPEND_ENTITY_PROPERTY(PROP_POSITION, appendPosition, properties.getPosition());
APPEND_ENTITY_PROPERTY(PROP_DIMENSIONS, appendValue, properties.getDimensions()); // NOTE: PROP_RADIUS obsolete
APPEND_ENTITY_PROPERTY(PROP_ROTATION, appendValue, properties.getRotation());
APPEND_ENTITY_PROPERTY(PROP_MASS, appendValue, properties.getMass());
APPEND_ENTITY_PROPERTY(PROP_VELOCITY, appendValue, properties.getVelocity());
APPEND_ENTITY_PROPERTY(PROP_GRAVITY, appendValue, properties.getGravity());
APPEND_ENTITY_PROPERTY(PROP_DAMPING, appendValue, properties.getDamping());
APPEND_ENTITY_PROPERTY(PROP_LIFETIME, appendValue, properties.getLifetime());
APPEND_ENTITY_PROPERTY(PROP_SCRIPT, appendValue, properties.getScript());
APPEND_ENTITY_PROPERTY(PROP_COLOR, appendColor, properties.getColor());
APPEND_ENTITY_PROPERTY(PROP_MODEL_URL, appendValue, properties.getModelURL());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_URL, appendValue, properties.getAnimationURL());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_FPS, appendValue, properties.getAnimationFPS());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_FRAME_INDEX, appendValue, properties.getAnimationFrameIndex());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_PLAYING, appendValue, properties.getAnimationIsPlaying());
APPEND_ENTITY_PROPERTY(PROP_REGISTRATION_POINT, appendValue, properties.getRegistrationPoint());
APPEND_ENTITY_PROPERTY(PROP_ANGULAR_VELOCITY, appendValue, properties.getAngularVelocity());
APPEND_ENTITY_PROPERTY(PROP_ANGULAR_DAMPING, appendValue, properties.getAngularDamping());
APPEND_ENTITY_PROPERTY(PROP_VISIBLE, appendValue, properties.getVisible());
}
if (propertyCount > 0) {
int endOfEntityItemData = packetData->getUncompressedByteOffset();
encodedPropertyFlags = propertyFlags;
int newPropertyFlagsLength = encodedPropertyFlags.length();
packetData->updatePriorBytes(propertyFlagsOffset,
(const unsigned char*)encodedPropertyFlags.constData(), encodedPropertyFlags.length());
// if the size of the PropertyFlags shrunk, we need to shift everything down to front of packet.
if (newPropertyFlagsLength < oldPropertyFlagsLength) {
int oldSize = packetData->getUncompressedSize();
const unsigned char* modelItemData = packetData->getUncompressedData(propertyFlagsOffset + oldPropertyFlagsLength);
int modelItemDataLength = endOfEntityItemData - startOfEntityItemData;
int newEntityItemDataStart = propertyFlagsOffset + newPropertyFlagsLength;
packetData->updatePriorBytes(newEntityItemDataStart, modelItemData, modelItemDataLength);
int newSize = oldSize - (oldPropertyFlagsLength - newPropertyFlagsLength);
packetData->setUncompressedSize(newSize);
} else {
assert(newPropertyFlagsLength == oldPropertyFlagsLength); // should not have grown
}
packetData->endLevel(entityLevel);
} else {
packetData->discardLevel(entityLevel);
appendState = OctreeElement::NONE; // if we got here, then we didn't include the item
}
// If any part of the model items didn't fit, then the element is considered partial
if (appendState != OctreeElement::COMPLETED) {
// TODO: handle mechanism for handling partial fitting data!
// add this item into our list for the next appendElementData() pass
//modelTreeElementExtraEncodeData->includedItems.insert(getEntityItemID(), propertiesDidntFit);
// for now, if it's not complete, it's not successful
success = false;
}
}
if (success) {
packetData->endSubTree();
const unsigned char* finalizedData = packetData->getFinalizedData();
int finalizedSize = packetData->getFinalizedSize();
if (finalizedSize <= sizeIn) {
memcpy(bufferOut, finalizedData, finalizedSize);
sizeOut = finalizedSize;
} else {
qDebug() << "ERROR - encoded edit message doesn't fit in output buffer.";
sizeOut = 0;
success = false;
}
} else {
packetData->discardSubTree();
sizeOut = 0;
}
return success;
}