bool ParticleEffect::Load(const XMLElement& source)
{
// Reset to defaults first so that missing parameters in case of a live reload behave as expected
material_.Reset();
numParticles_ = DEFAULT_NUM_PARTICLES;
updateInvisible_ = false;
relative_ = true;
scaled_ = true;
sorted_ = false;
fixedScreenSize_ = false;
animationLodBias_ = 0.0f;
emitterType_ = EMITTER_SPHERE;
emitterSize_ = Vector3::ZERO;
directionMin_ = DEFAULT_DIRECTION_MIN;
directionMax_ = DEFAULT_DIRECTION_MAX;
constantForce_ = Vector3::ZERO;
dampingForce_ = 0.0f;
activeTime_ = 0.0f;
inactiveTime_ = 0.0;
emissionRateMin_ = DEFAULT_EMISSION_RATE;
emissionRateMax_ = DEFAULT_EMISSION_RATE;
sizeMin_ = DEFAULT_PARTICLE_SIZE;
sizeMax_ = DEFAULT_PARTICLE_SIZE;
timeToLiveMin_ = DEFAULT_TIME_TO_LIVE;
timeToLiveMax_ = DEFAULT_TIME_TO_LIVE;
velocityMin_ = DEFAULT_VELOCITY;
velocityMax_ = DEFAULT_VELOCITY;
rotationMin_ = 0.0f;
rotationMax_ = 0.0f;
rotationSpeedMin_ = 0.0f;
rotationSpeedMax_ = 0.0f;
sizeAdd_ = 0.0f;
sizeMul_ = 1.0f;
colorFrames_.Clear();
textureFrames_.Clear();
faceCameraMode_ = FC_ROTATE_XYZ;
if (source.IsNull())
{
URHO3D_LOGERROR("Can not load particle effect from null XML element");
return false;
}
if (source.HasChild("material"))
{
loadMaterialName_ = source.GetChild("material").GetAttribute("name");
// If async loading, can not GetResource() the material. But can do a background request for it
if (GetAsyncLoadState() == ASYNC_LOADING)
GetSubsystem<ResourceCache>()->BackgroundLoadResource<Material>(loadMaterialName_, true, this);
}
if (source.HasChild("numparticles"))
SetNumParticles((unsigned)source.GetChild("numparticles").GetInt("value"));
if (source.HasChild("updateinvisible"))
updateInvisible_ = source.GetChild("updateinvisible").GetBool("enable");
if (source.HasChild("relative"))
relative_ = source.GetChild("relative").GetBool("enable");
if (source.HasChild("scaled"))
scaled_ = source.GetChild("scaled").GetBool("enable");
if (source.HasChild("sorted"))
sorted_ = source.GetChild("sorted").GetBool("enable");
if (source.HasChild("fixedscreensize"))
fixedScreenSize_ = source.GetChild("fixedscreensize").GetBool("enable");
if (source.HasChild("animlodbias"))
SetAnimationLodBias(source.GetChild("animlodbias").GetFloat("value"));
if (source.HasChild("emittertype"))
{
String type = source.GetChild("emittertype").GetAttributeLower("value");
if (type == "point")
{
// Point emitter type is deprecated, handled as zero sized sphere
emitterType_ = EMITTER_SPHERE;
emitterSize_ = Vector3::ZERO;
}
else
emitterType_ = (EmitterType)GetStringListIndex(type.CString(), emitterTypeNames, EMITTER_SPHERE);
}
if (source.HasChild("emittersize"))
emitterSize_ = source.GetChild("emittersize").GetVector3("value");
if (source.HasChild("emitterradius"))
emitterSize_.x_ = emitterSize_.y_ = emitterSize_.z_ = source.GetChild("emitterradius").GetFloat("value");
if (source.HasChild("direction"))
GetVector3MinMax(source.GetChild("direction"), directionMin_, directionMax_);
if (source.HasChild("constantforce"))
constantForce_ = source.GetChild("constantforce").GetVector3("value");
if (source.HasChild("dampingforce"))
dampingForce_ = source.GetChild("dampingforce").GetFloat("value");
if (source.HasChild("activetime"))
activeTime_ = source.GetChild("activetime").GetFloat("value");
if (activeTime_ < 0.0f)
activeTime_ = M_INFINITY;
if (source.HasChild("inactivetime"))
inactiveTime_ = source.GetChild("inactivetime").GetFloat("value");
if (inactiveTime_ < 0.0f)
inactiveTime_ = M_INFINITY;
if (source.HasChild("emissionrate"))
GetFloatMinMax(source.GetChild("emissionrate"), emissionRateMin_, emissionRateMax_);
if (source.HasChild("interval"))
{
float intervalMin = 0.0f;
float intervalMax = 0.0f;
GetFloatMinMax(source.GetChild("interval"), intervalMin, intervalMax);
emissionRateMax_ = 1.0f / intervalMin;
emissionRateMin_ = 1.0f / intervalMax;
}
if (source.HasChild("particlesize"))
GetVector2MinMax(source.GetChild("particlesize"), sizeMin_, sizeMax_);
if (source.HasChild("timetolive"))
GetFloatMinMax(source.GetChild("timetolive"), timeToLiveMin_, timeToLiveMax_);
if (source.HasChild("velocity"))
GetFloatMinMax(source.GetChild("velocity"), velocityMin_, velocityMax_);
if (source.HasChild("rotation"))
GetFloatMinMax(source.GetChild("rotation"), rotationMin_, rotationMax_);
if (source.HasChild("rotationspeed"))
GetFloatMinMax(source.GetChild("rotationspeed"), rotationSpeedMin_, rotationSpeedMax_);
if (source.HasChild("faceCameraMode"))
{
String type = source.GetChild("faceCameraMode").GetAttributeLower("value");
faceCameraMode_ = (FaceCameraMode)GetStringListIndex(type.CString(), faceCameraModeNames, FC_ROTATE_XYZ);
}
if (source.HasChild("sizedelta"))
{
XMLElement deltaElem = source.GetChild("sizedelta");
if (deltaElem.HasAttribute("add"))
sizeAdd_ = deltaElem.GetFloat("add");
if (deltaElem.HasAttribute("mul"))
sizeMul_ = deltaElem.GetFloat("mul");
}
if (source.HasChild("color"))
{
ColorFrame colorFrame(source.GetChild("color").GetColor("value"));
SetColorFrame(0, colorFrame);
}
if (source.HasChild("colorfade"))
{
Vector<ColorFrame> fades;
for (XMLElement colorFadeElem = source.GetChild("colorfade"); colorFadeElem;
colorFadeElem = colorFadeElem.GetNext("colorfade"))
fades.Push(ColorFrame(colorFadeElem.GetColor("color"), colorFadeElem.GetFloat("time")));
SetColorFrames(fades);
}
if (colorFrames_.Empty())
colorFrames_.Push(ColorFrame(Color::WHITE));
if (source.HasChild("texanim"))
{
Vector<TextureFrame> animations;
for (XMLElement animElem = source.GetChild("texanim"); animElem; animElem = animElem.GetNext("texanim"))
{
TextureFrame animation;
animation.uv_ = animElem.GetRect("uv");
animation.time_ = animElem.GetFloat("time");
animations.Push(animation);
}
SetTextureFrames(animations);
}
return true;
}
bool ParticleEmitter::Load(XMLFile* file)
{
if (!file)
{
LOGERROR("Null particle emitter parameter file");
return false;
}
XMLElement rootElem = file->GetRoot();
if (!rootElem)
{
LOGERROR("Particle emitter parameter file does not have a valid root element");
return false;
}
if (rootElem.HasChild("material"))
SetMaterial(GetSubsystem<ResourceCache>()->GetResource<Material>(rootElem.GetChild("material").GetAttribute("name")));
if (rootElem.HasChild("numparticles"))
SetNumParticles(rootElem.GetChild("numparticles").GetInt("value"));
if (rootElem.HasChild("updateinvisible"))
updateInvisible_ = rootElem.GetChild("updateinvisible").GetBool("enable");
if (rootElem.HasChild("relative"))
relative_ = rootElem.GetChild("relative").GetBool("enable");
if (rootElem.HasChild("scaled"))
scaled_ = rootElem.GetChild("scaled").GetBool("enable");
if (rootElem.HasChild("sorted"))
sorted_ = rootElem.GetChild("sorted").GetBool("enable");
if (rootElem.HasChild("animlodbias"))
SetAnimationLodBias(rootElem.GetChild("relative").GetFloat("value"));
if (rootElem.HasChild("emittertype"))
{
String type = rootElem.GetChild("emittertype").GetAttributeLower("value");
if (type == "point")
{
// Point emitter type is deprecated, handled as zero sized sphere
emitterType_ = EMITTER_SPHERE;
emitterSize_ = Vector3::ZERO;
}
else if (type == "box")
emitterType_ = EMITTER_BOX;
else if (type == "sphere")
emitterType_ = EMITTER_SPHERE;
else
LOGERROR("Unknown particle emitter type " + type);
}
if (rootElem.HasChild("emittersize"))
emitterSize_ = rootElem.GetChild("emittersize").GetVector3("value");
if (rootElem.HasChild("emitterradius"))
emitterSize_.x_ = emitterSize_.y_ = emitterSize_.z_ = rootElem.GetChild("emitterradius").GetFloat("value");
if (rootElem.HasChild("direction"))
GetVector3MinMax(rootElem.GetChild("direction"), directionMin_, directionMax_);
if (rootElem.HasChild("constantforce"))
constantForce_ = rootElem.GetChild("constantforce").GetVector3("value");
if (rootElem.HasChild("dampingforce"))
dampingForce_ = rootElem.GetChild("dampingforce").GetFloat("value");
if (rootElem.HasChild("activetime"))
activeTime_ = rootElem.GetChild("activetime").GetFloat("value");
if (activeTime_ < 0.0f)
activeTime_ = M_INFINITY;
if (rootElem.HasChild("inactivetime"))
inactiveTime_ = rootElem.GetChild("inactivetime").GetFloat("value");
if (inactiveTime_ < 0.0f)
inactiveTime_ = M_INFINITY;
if (rootElem.HasChild("emissionrate"))
GetFloatMinMax(rootElem.GetChild("emissionrate"), emissionRateMin_, emissionRateMax_);
if (rootElem.HasChild("interval"))
{
float intervalMin = 0.0f;
float intervalMax = 0.0f;
GetFloatMinMax(rootElem.GetChild("interval"), intervalMin, intervalMax);
emissionRateMax_ = 1.0f / intervalMin;
emissionRateMin_ = 1.0f / intervalMax;
}
if (rootElem.HasChild("particlesize"))
GetVector2MinMax(rootElem.GetChild("particlesize"), sizeMin_, sizeMax_);
if (rootElem.HasChild("timetolive"))
GetFloatMinMax(rootElem.GetChild("timetolive"), timeToLiveMin_, timeToLiveMax_);
if (rootElem.HasChild("velocity"))
GetFloatMinMax(rootElem.GetChild("velocity"), velocityMin_, velocityMax_);
if (rootElem.HasChild("rotation"))
GetFloatMinMax(rootElem.GetChild("rotation"), rotationMin_, rotationMax_);
if (rootElem.HasChild("rotationspeed"))
GetFloatMinMax(rootElem.GetChild("rotationspeed"), rotationSpeedMin_, rotationSpeedMax_);
if (rootElem.HasChild("sizedelta"))
{
XMLElement deltaElem = rootElem.GetChild("sizedelta");
if (deltaElem.HasAttribute("add"))
sizeAdd_ = deltaElem.GetFloat("add");
if (deltaElem.HasAttribute("mul"))
sizeMul_ = deltaElem.GetFloat("mul");
}
if (rootElem.HasChild("color"))
SetColor(rootElem.GetChild("color").GetColor("value"));
if (rootElem.HasChild("colorfade"))
{
Vector<ColorFrame> fades;
XMLElement colorFadeElem = rootElem.GetChild("colorfade");
while (colorFadeElem)
{
fades.Push(ColorFrame(colorFadeElem.GetColor("color"), colorFadeElem.GetFloat("time")));
colorFadeElem = colorFadeElem.GetNext("colorfade");
}
SetColors(fades);
}
if (rootElem.HasChild("texanim"))
{
Vector<TextureFrame> animations;
XMLElement animElem = rootElem.GetChild("texanim");
while (animElem)
{
TextureFrame animation;
animation.uv_ = animElem.GetRect("uv");
animation.time_ = animElem.GetFloat("time");
animations.Push(animation);
animElem = animElem.GetNext("texanim");
}
textureFrames_ = animations;
}
MarkNetworkUpdate();
return true;
}
