void ParticleEffectEntityItem::stepSimulation(float deltaTime) {
_particleMinBound = glm::vec3(-1.0f, -1.0f, -1.0f);
_particleMaxBound = glm::vec3(1.0f, 1.0f, 1.0f);
// update particles between head and tail
for (quint32 i = _particleHeadIndex; i != _particleTailIndex; i = (i + 1) % _maxParticles) {
_particleLifetimes[i] -= deltaTime;
// if particle has died.
if (_particleLifetimes[i] <= 0.0f) {
// move head forward
_particleHeadIndex = (_particleHeadIndex + 1) % _maxParticles;
}
else {
integrateParticle(i, deltaTime);
extendBounds(_particlePositions[i]);
}
}
// emit new particles, but only if animaiton is playing
if (getAnimationIsPlaying()) {
float timeLeftInFrame = deltaTime;
while (_timeUntilNextEmit < timeLeftInFrame) {
timeLeftInFrame -= _timeUntilNextEmit;
_timeUntilNextEmit = 1.0f / _emitRate;
// emit a new particle at tail index.
quint32 i = _particleTailIndex;
_particleLifetimes[i] = _lifespan;
// jitter the _emitDirection by a random offset
glm::vec3 randOffset;
randOffset.x = (randFloat() - 0.5f) * 0.25f * _emitStrength;
randOffset.y = (randFloat() - 0.5f) * 0.25f * _emitStrength;
randOffset.z = (randFloat() - 0.5f) * 0.25f * _emitStrength;
// set initial conditions
_particlePositions[i] = glm::vec3(0.0f, 0.0f, 0.0f);
_particleVelocities[i] = _emitDirection * _emitStrength + randOffset;
integrateParticle(i, timeLeftInFrame);
extendBounds(_particlePositions[i]);
_particleTailIndex = (_particleTailIndex + 1) % _maxParticles;
// overflow! move head forward by one.
// because the case of head == tail indicates an empty array, not a full one.
// This can drop an existing older particle, but this is by design, newer particles are a higher priority.
if (_particleTailIndex == _particleHeadIndex) {
_particleHeadIndex = (_particleHeadIndex + 1) % _maxParticles;
}
}
_timeUntilNextEmit -= timeLeftInFrame;
}
}
void ModelEntityItem::setAnimationSettings(const QString& value) {
// the animations setting is a JSON string that may contain various animation settings.
// if it includes fps, currentFrame, or running, those values will be parsed out and
// will over ride the regular animation settings
QJsonDocument settingsAsJson = QJsonDocument::fromJson(value.toUtf8());
QJsonObject settingsAsJsonObject = settingsAsJson.object();
QVariantMap settingsMap = settingsAsJsonObject.toVariantMap();
if (settingsMap.contains("fps")) {
float fps = settingsMap["fps"].toFloat();
setAnimationFPS(fps);
}
// old settings used frameIndex
if (settingsMap.contains("frameIndex")) {
float currentFrame = settingsMap["frameIndex"].toFloat();
#ifdef WANT_DEBUG
if (isAnimatingSomething()) {
qCDebug(entities) << "ModelEntityItem::setAnimationSettings() calling setAnimationFrameIndex()...";
qCDebug(entities) << " model URL:" << getModelURL();
qCDebug(entities) << " animation URL:" << getAnimationURL();
qCDebug(entities) << " settings:" << value;
qCDebug(entities) << " settingsMap[frameIndex]:" << settingsMap["frameIndex"];
qCDebug(entities" currentFrame: %20.5f", currentFrame);
}
#endif
setAnimationCurrentFrame(currentFrame);
}
if (settingsMap.contains("running")) {
bool running = settingsMap["running"].toBool();
if (running != getAnimationIsPlaying()) {
setAnimationIsPlaying(running);
}
}
if (settingsMap.contains("firstFrame")) {
float firstFrame = settingsMap["firstFrame"].toFloat();
setAnimationFirstFrame(firstFrame);
}
if (settingsMap.contains("lastFrame")) {
float lastFrame = settingsMap["lastFrame"].toFloat();
setAnimationLastFrame(lastFrame);
}
if (settingsMap.contains("loop")) {
bool loop = settingsMap["loop"].toBool();
setAnimationLoop(loop);
}
if (settingsMap.contains("hold")) {
bool hold = settingsMap["hold"].toBool();
setAnimationHold(hold);
}
_dirtyFlags |= Simulation::DIRTY_UPDATEABLE;
}
int ModelEntityItem::readEntitySubclassDataFromBuffer(const unsigned char* data, int bytesLeftToRead,
ReadBitstreamToTreeParams& args,
EntityPropertyFlags& propertyFlags, bool overwriteLocalData) {
int bytesRead = 0;
const unsigned char* dataAt = data;
READ_ENTITY_PROPERTY(PROP_COLOR, rgbColor, setColor);
READ_ENTITY_PROPERTY(PROP_MODEL_URL, QString, setModelURL);
if (args.bitstreamVersion < VERSION_ENTITIES_HAS_COLLISION_MODEL) {
setCompoundShapeURL("");
} else if (args.bitstreamVersion == VERSION_ENTITIES_HAS_COLLISION_MODEL) {
READ_ENTITY_PROPERTY(PROP_COMPOUND_SHAPE_URL, QString, setCompoundShapeURL);
} else {
READ_ENTITY_PROPERTY(PROP_COMPOUND_SHAPE_URL, QString, setCompoundShapeURL);
}
READ_ENTITY_PROPERTY(PROP_ANIMATION_URL, QString, setAnimationURL);
// Because we're using AnimationLoop which will reset the frame index if you change it's running state
// we want to read these values in the order they appear in the buffer, but call our setters in an
// order that allows AnimationLoop to preserve the correct frame rate.
float animationFPS = getAnimationFPS();
float animationFrameIndex = getAnimationFrameIndex();
bool animationIsPlaying = getAnimationIsPlaying();
READ_ENTITY_PROPERTY(PROP_ANIMATION_FPS, float, setAnimationFPS);
READ_ENTITY_PROPERTY(PROP_ANIMATION_FRAME_INDEX, float, setAnimationFrameIndex);
READ_ENTITY_PROPERTY(PROP_ANIMATION_PLAYING, bool, setAnimationIsPlaying);
if (propertyFlags.getHasProperty(PROP_ANIMATION_PLAYING)) {
if (animationIsPlaying != getAnimationIsPlaying()) {
setAnimationIsPlaying(animationIsPlaying);
}
}
if (propertyFlags.getHasProperty(PROP_ANIMATION_FPS)) {
setAnimationFPS(animationFPS);
}
if (propertyFlags.getHasProperty(PROP_ANIMATION_FRAME_INDEX)) {
setAnimationFrameIndex(animationFrameIndex);
}
READ_ENTITY_PROPERTY(PROP_TEXTURES, QString, setTextures);
READ_ENTITY_PROPERTY(PROP_ANIMATION_SETTINGS, QString, setAnimationSettings);
READ_ENTITY_PROPERTY(PROP_SHAPE_TYPE, ShapeType, updateShapeType);
return bytesRead;
}
void ModelEntityItem::update(const quint64& now) {
// only advance the frame index if we're playing
if (getAnimationIsPlaying()) {
_animationLoop.simulateAtTime(now);
}
EntityItem::update(now); // let our base class handle it's updates...
}
int ParticleEffectEntityItem::readEntitySubclassDataFromBuffer(const unsigned char* data, int bytesLeftToRead,
ReadBitstreamToTreeParams& args,
EntityPropertyFlags& propertyFlags, bool overwriteLocalData) {
int bytesRead = 0;
const unsigned char* dataAt = data;
READ_ENTITY_PROPERTY(PROP_COLOR, rgbColor, setColor);
// Because we're using AnimationLoop which will reset the frame index if you change it's running state
// we want to read these values in the order they appear in the buffer, but call our setters in an
// order that allows AnimationLoop to preserve the correct frame rate.
float animationFPS = getAnimationFPS();
float animationFrameIndex = getAnimationFrameIndex();
bool animationIsPlaying = getAnimationIsPlaying();
READ_ENTITY_PROPERTY(PROP_ANIMATION_FPS, float, setAnimationFPS);
READ_ENTITY_PROPERTY(PROP_ANIMATION_FRAME_INDEX, float, setAnimationFrameIndex);
READ_ENTITY_PROPERTY(PROP_ANIMATION_PLAYING, bool, setAnimationIsPlaying);
if (propertyFlags.getHasProperty(PROP_ANIMATION_PLAYING)) {
if (animationIsPlaying != getAnimationIsPlaying()) {
setAnimationIsPlaying(animationIsPlaying);
}
}
if (propertyFlags.getHasProperty(PROP_ANIMATION_FPS)) {
setAnimationFPS(animationFPS);
}
if (propertyFlags.getHasProperty(PROP_ANIMATION_FRAME_INDEX)) {
setAnimationFrameIndex(animationFrameIndex);
}
READ_ENTITY_PROPERTY(PROP_ANIMATION_SETTINGS, QString, setAnimationSettings);
READ_ENTITY_PROPERTY(PROP_SHAPE_TYPE, ShapeType, updateShapeType);
READ_ENTITY_PROPERTY(PROP_MAX_PARTICLES, quint32, setMaxParticles);
READ_ENTITY_PROPERTY(PROP_LIFESPAN, float, setLifespan);
READ_ENTITY_PROPERTY(PROP_EMIT_RATE, float, setEmitRate);
READ_ENTITY_PROPERTY(PROP_EMIT_DIRECTION, glm::vec3, setEmitDirection);
READ_ENTITY_PROPERTY(PROP_EMIT_STRENGTH, float, setEmitStrength);
READ_ENTITY_PROPERTY(PROP_LOCAL_GRAVITY, float, setLocalGravity);
READ_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, float, setParticleRadius);
READ_ENTITY_PROPERTY(PROP_TEXTURES, QString, setTextures);
return bytesRead;
}
void ParticleEffectEntityItem::update(const quint64& now) {
float deltaTime = (float)(now - _lastAnimated) / (float)USECS_PER_SECOND;
_lastAnimated = now;
// only advance the frame index if we're playing
if (getAnimationIsPlaying()) {
_animationLoop.simulate(deltaTime);
}
if (isAnimatingSomething()) {
stepSimulation(deltaTime);
}
EntityItem::update(now); // let our base class handle it's updates...
}
void ModelEntityItem::appendSubclassData(OctreePacketData* packetData, EncodeBitstreamParams& params,
EntityTreeElementExtraEncodeData* entityTreeElementExtraEncodeData,
EntityPropertyFlags& requestedProperties,
EntityPropertyFlags& propertyFlags,
EntityPropertyFlags& propertiesDidntFit,
int& propertyCount, OctreeElement::AppendState& appendState) const {
bool successPropertyFits = true;
APPEND_ENTITY_PROPERTY(PROP_COLOR, appendColor, getColor());
APPEND_ENTITY_PROPERTY(PROP_MODEL_URL, appendValue, getModelURL());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_URL, appendValue, getAnimationURL());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_FPS, appendValue, getAnimationFPS());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_FRAME_INDEX, appendValue, getAnimationFrameIndex());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_PLAYING, appendValue, getAnimationIsPlaying());
APPEND_ENTITY_PROPERTY(PROP_TEXTURES, appendValue, getTextures());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_SETTINGS, appendValue, getAnimationSettings());
}
QString ParticleEffectEntityItem::getAnimationSettings() const {
// the animations setting is a JSON string that may contain various animation settings.
// if it includes fps, frameIndex, or running, those values will be parsed out and
// will over ride the regular animation settings
QString value = _animationSettings;
QJsonDocument settingsAsJson = QJsonDocument::fromJson(value.toUtf8());
QJsonObject settingsAsJsonObject = settingsAsJson.object();
QVariantMap settingsMap = settingsAsJsonObject.toVariantMap();
QVariant fpsValue(getAnimationFPS());
settingsMap["fps"] = fpsValue;
QVariant frameIndexValue(getAnimationFrameIndex());
settingsMap["frameIndex"] = frameIndexValue;
QVariant runningValue(getAnimationIsPlaying());
settingsMap["running"] = runningValue;
QVariant firstFrameValue(getAnimationFirstFrame());
settingsMap["firstFrame"] = firstFrameValue;
QVariant lastFrameValue(getAnimationLastFrame());
settingsMap["lastFrame"] = lastFrameValue;
QVariant loopValue(getAnimationLoop());
settingsMap["loop"] = loopValue;
QVariant holdValue(getAnimationHold());
settingsMap["hold"] = holdValue;
QVariant startAutomaticallyValue(getAnimationStartAutomatically());
settingsMap["startAutomatically"] = startAutomaticallyValue;
settingsAsJsonObject = QJsonObject::fromVariantMap(settingsMap);
QJsonDocument newDocument(settingsAsJsonObject);
QByteArray jsonByteArray = newDocument.toJson(QJsonDocument::Compact);
QString jsonByteString(jsonByteArray);
return jsonByteString;
}
void ParticleEffectEntityItem::update(const quint64& now) {
float deltaTime = (float)(now - _lastAnimated) / (float)USECS_PER_SECOND;
_lastAnimated = now;
// only advance the frame index if we're playing
if (getAnimationIsPlaying()) {
_animationLoop.simulate(deltaTime);
}
if (isAnimatingSomething()) {
stepSimulation(deltaTime);
// update the dimensions
glm::vec3 dims;
dims.x = glm::max(glm::abs(_particleMinBound.x), glm::abs(_particleMaxBound.x)) * 2.0f;
dims.y = glm::max(glm::abs(_particleMinBound.y), glm::abs(_particleMaxBound.y)) * 2.0f;
dims.z = glm::max(glm::abs(_particleMinBound.z), glm::abs(_particleMaxBound.z)) * 2.0f;
setDimensions(dims);
}
EntityItem::update(now); // let our base class handle it's updates...
}
void ParticleEffectEntityItem::appendSubclassData(OctreePacketData* packetData, EncodeBitstreamParams& params,
EntityTreeElementExtraEncodeData* modelTreeElementExtraEncodeData,
EntityPropertyFlags& requestedProperties,
EntityPropertyFlags& propertyFlags,
EntityPropertyFlags& propertiesDidntFit,
int& propertyCount,
OctreeElement::AppendState& appendState) const {
bool successPropertyFits = true;
APPEND_ENTITY_PROPERTY(PROP_COLOR, getColor());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_FPS, getAnimationFPS());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_FRAME_INDEX, getAnimationFrameIndex());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_PLAYING, getAnimationIsPlaying());
APPEND_ENTITY_PROPERTY(PROP_ANIMATION_SETTINGS, getAnimationSettings());
APPEND_ENTITY_PROPERTY(PROP_SHAPE_TYPE, (uint32_t)getShapeType());
APPEND_ENTITY_PROPERTY(PROP_MAX_PARTICLES, getMaxParticles());
APPEND_ENTITY_PROPERTY(PROP_LIFESPAN, getLifespan());
APPEND_ENTITY_PROPERTY(PROP_EMIT_RATE, getEmitRate());
APPEND_ENTITY_PROPERTY(PROP_EMIT_DIRECTION, getEmitDirection());
APPEND_ENTITY_PROPERTY(PROP_EMIT_STRENGTH, getEmitStrength());
APPEND_ENTITY_PROPERTY(PROP_LOCAL_GRAVITY, getLocalGravity());
APPEND_ENTITY_PROPERTY(PROP_PARTICLE_RADIUS, getParticleRadius());
APPEND_ENTITY_PROPERTY(PROP_TEXTURES, getTextures());
}
void ParticleEffectEntityItem::setAnimationSettings(const QString& value) {
// the animations setting is a JSON string that may contain various animation settings.
// if it includes fps, frameIndex, or running, those values will be parsed out and
// will over ride the regular animation settings
QJsonDocument settingsAsJson = QJsonDocument::fromJson(value.toUtf8());
QJsonObject settingsAsJsonObject = settingsAsJson.object();
QVariantMap settingsMap = settingsAsJsonObject.toVariantMap();
if (settingsMap.contains("fps")) {
float fps = settingsMap["fps"].toFloat();
setAnimationFPS(fps);
}
if (settingsMap.contains("frameIndex")) {
float frameIndex = settingsMap["frameIndex"].toFloat();
#ifdef WANT_DEBUG
if (isAnimatingSomething()) {
qCDebug(entities) << "ParticleEffectEntityItem::setAnimationSettings() calling setAnimationFrameIndex()...";
qCDebug(entities) << " settings:" << value;
qCDebug(entities) << " settingsMap[frameIndex]:" << settingsMap["frameIndex"];
qCDebug(entities, " frameIndex: %20.5f", frameIndex);
}
#endif
setAnimationFrameIndex(frameIndex);
}
if (settingsMap.contains("running")) {
bool running = settingsMap["running"].toBool();
if (running != getAnimationIsPlaying()) {
setAnimationIsPlaying(running);
}
}
if (settingsMap.contains("firstFrame")) {
float firstFrame = settingsMap["firstFrame"].toFloat();
setAnimationFirstFrame(firstFrame);
}
if (settingsMap.contains("lastFrame")) {
float lastFrame = settingsMap["lastFrame"].toFloat();
setAnimationLastFrame(lastFrame);
}
if (settingsMap.contains("loop")) {
bool loop = settingsMap["loop"].toBool();
setAnimationLoop(loop);
}
if (settingsMap.contains("hold")) {
bool hold = settingsMap["hold"].toBool();
setAnimationHold(hold);
}
if (settingsMap.contains("startAutomatically")) {
bool startAutomatically = settingsMap["startAutomatically"].toBool();
setAnimationStartAutomatically(startAutomatically);
}
_animationSettings = value;
_dirtyFlags |= EntityItem::DIRTY_UPDATEABLE;
}
bool ParticleEffectEntityItem::isAnimatingSomething() const {
// keep animating if there are particles still alive.
return (getAnimationIsPlaying() || getLivingParticleCount() > 0) && getAnimationFPS() != 0.0f;
}
bool ModelItem::appendModelData(OctreePacketData* packetData) const {
bool success = packetData->appendValue(getID());
//qDebug("ModelItem::appendModelData()... getID()=%d", getID());
if (success) {
success = packetData->appendValue(getLastUpdated());
}
if (success) {
success = packetData->appendValue(getLastEdited());
}
if (success) {
success = packetData->appendValue(getRadius());
}
if (success) {
success = packetData->appendPosition(getPosition());
}
if (success) {
success = packetData->appendColor(getColor());
}
if (success) {
success = packetData->appendValue(getShouldDie());
}
// modelURL
if (success) {
uint16_t modelURLLength = _modelURL.size() + 1; // include NULL
success = packetData->appendValue(modelURLLength);
if (success) {
success = packetData->appendRawData((const unsigned char*)qPrintable(_modelURL), modelURLLength);
}
}
// modelRotation
if (success) {
success = packetData->appendValue(getModelRotation());
}
// animationURL
if (success) {
uint16_t animationURLLength = _animationURL.size() + 1; // include NULL
success = packetData->appendValue(animationURLLength);
if (success) {
success = packetData->appendRawData((const unsigned char*)qPrintable(_animationURL), animationURLLength);
}
}
// animationIsPlaying
if (success) {
success = packetData->appendValue(getAnimationIsPlaying());
}
// animationFrameIndex
if (success) {
success = packetData->appendValue(getAnimationFrameIndex());
}
// animationFPS
if (success) {
success = packetData->appendValue(getAnimationFPS());
}
return success;
}
bool ModelEntityItem::isAnimatingSomething() const {
return getAnimationIsPlaying() &&
getAnimationFPS() != 0.0f &&
!getAnimationURL().isEmpty();
}
