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-rw-r--r--indra/newview/llviewerpartsource.cpp1892
1 files changed, 946 insertions, 946 deletions
diff --git a/indra/newview/llviewerpartsource.cpp b/indra/newview/llviewerpartsource.cpp
index 8664e93bc3..dd6a404836 100644
--- a/indra/newview/llviewerpartsource.cpp
+++ b/indra/newview/llviewerpartsource.cpp
@@ -1,946 +1,946 @@
-/**
- * @file llviewerpartsource.cpp
- * @brief LLViewerPartSource class implementation
- *
- * $LicenseInfo:firstyear=2003&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#include "llviewerprecompiledheaders.h"
-#include "llviewerpartsource.h"
-
-#include "llviewercontrol.h"
-#include "llrender.h"
-
-#include "llagent.h"
-#include "lldrawable.h"
-#include "llviewercamera.h"
-#include "llviewertexturelist.h"
-#include "llviewerobject.h"
-#include "llviewerobjectlist.h"
-#include "llvoavatar.h"
-#include "llworld.h"
-#include "pipeline.h"
-
-
-static LLVOAvatar* find_avatar(const LLUUID& id)
-{
- LLViewerObject *obj = gObjectList.findObject(id);
- while (obj && obj->isAttachment())
- {
- obj = (LLViewerObject *)obj->getParent();
- }
-
- if (obj && obj->isAvatar())
- {
- return (LLVOAvatar*)obj;
- }
- else
- {
- return NULL;
- }
-}
-
-LLViewerPartSource::LLViewerPartSource(const U32 type) :
- mType(type),
- mOwnerUUID(LLUUID::null),
- mPartFlags(0)
-{
- mLastUpdateTime = 0.f;
- mLastPartTime = 0.f;
- mIsDead = false;
- mIsSuspended = false;
- static U32 id_seed = 0;
- mID = ++id_seed;
-
- mLastPart = NULL;
-
- mDelay = 0 ;
-}
-
-void LLViewerPartSource::setDead()
-{
- mIsDead = true;
-}
-
-
-void LLViewerPartSource::updatePart(LLViewerPart &part, const F32 dt)
-{
-}
-
-void LLViewerPartSource::update(const F32 dt)
-{
- LL_ERRS() << "Creating default part source!" << LL_ENDL;
-}
-
-LLUUID LLViewerPartSource::getImageUUID() const
-{
- LLViewerTexture* imagep = mImagep;
- if(imagep)
- {
- return imagep->getID();
- }
- return LLUUID::null;
-}
-void LLViewerPartSource::setStart()
-{
- //cancel delaying to start a new added particle source, because some particle source just emits for a short time.
- //however, canceling this might cause overall particle emmitting fluctuate for a while because the new added source jumps to
- //the current particle emmitting settings instantly. -->bao
- mDelay = 0 ; //99
-}
-
-LLViewerPartSourceScript::LLViewerPartSourceScript(LLViewerObject *source_objp) :
- LLViewerPartSource(LL_PART_SOURCE_SCRIPT)
-{
- llassert(source_objp);
- mSourceObjectp = source_objp;
- mPosAgent = mSourceObjectp->getPositionAgent();
- mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
-
- mImagep->setAddressMode(LLTexUnit::TAM_CLAMP);
-}
-
-
-void LLViewerPartSourceScript::setDead()
-{
- mIsDead = true;
- mSourceObjectp = NULL;
- mTargetObjectp = NULL;
-}
-
-void LLViewerPartSourceScript::update(const F32 dt)
-{
- if( mIsSuspended )
- return;
-
- if (mOwnerAvatarp.isNull() && mOwnerUUID != LLUUID::null)
- {
- mOwnerAvatarp = find_avatar(mOwnerUUID);
- }
- if (mOwnerAvatarp.notNull() && LLVOAvatar::AOA_NORMAL != mOwnerAvatarp->getOverallAppearance())
- {
- return;
- }
-
- F32 old_update_time = mLastUpdateTime;
- mLastUpdateTime += dt;
-
- F32 ref_rate_travelspeed = llmin(LLViewerPartSim::getInstance()->getRefRate(), 1.f);
-
- F32 dt_update = mLastUpdateTime - mLastPartTime;
-
- // Update this for objects which have the follow flag set...
- if (!mSourceObjectp.isNull())
- {
- if (mSourceObjectp->isDead())
- {
- mSourceObjectp = NULL;
- }
- else if (mSourceObjectp->mDrawable.notNull())
- {
- mPosAgent = mSourceObjectp->getRenderPosition();
- }
- }
-
- if (mTargetObjectp.isNull()
- && mPartSysData.mTargetUUID.notNull())
- {
- //
- // Hmm, missing object, let's see if we can find it...
- //
-
- LLViewerObject *target_objp = gObjectList.findObject(mPartSysData.mTargetUUID);
- setTargetObject(target_objp);
- }
-
- if (!mTargetObjectp.isNull())
- {
- if (mTargetObjectp->isDead())
- {
- mTargetObjectp = NULL;
- }
- else if (mTargetObjectp->mDrawable.notNull())
- {
- mTargetPosAgent = mTargetObjectp->getRenderPosition();
- }
- }
-
- if (!mTargetObjectp)
- {
- mTargetPosAgent = mPosAgent;
- }
-
- if (mPartSysData.mMaxAge && ((mPartSysData.mStartAge + mLastUpdateTime + dt_update) > mPartSysData.mMaxAge))
- {
- // Kill particle source because it has outlived its max age...
- setDead();
- return;
- }
-
-
- if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_PARTICLES))
- {
- if (mSourceObjectp.notNull())
- {
- std::ostringstream ostr;
- ostr << mPartSysData;
- mSourceObjectp->setDebugText(ostr.str());
- }
- }
-
- bool first_run = false;
- if (old_update_time <= 0.f)
- {
- first_run = true;
- }
-
- F32 max_time = llmax(1.f, 10.f*mPartSysData.mBurstRate);
- dt_update = llmin(max_time, dt_update);
- while ((dt_update > mPartSysData.mBurstRate) || first_run)
- {
- first_run = false;
-
- // Update the rotation of the particle source by the angular velocity
- // First check to see if there is still an angular velocity.
- F32 angular_velocity_mag = mPartSysData.mAngularVelocity.magVec();
- if (angular_velocity_mag != 0.0f)
- {
- F32 av_angle = dt * angular_velocity_mag;
- LLQuaternion dquat(av_angle, mPartSysData.mAngularVelocity);
- mRotation *= dquat;
- }
- else
- {
- // No angular velocity. Reset our rotation.
- mRotation.setQuat(0, 0, 0);
- }
-
- if (LLViewerPartSim::getInstance()->aboveParticleLimit())
- {
- // Don't bother doing any more updates if we're above the particle limit,
- // just give up.
- mLastPartTime = mLastUpdateTime;
- break;
-
- }
-
- // find the greatest length that the shortest side of a system
- // particle is expected to have
- F32 max_short_side =
- llmax(
- llmax(llmin(mPartSysData.mPartData.mStartScale[0],
- mPartSysData.mPartData.mStartScale[1]),
- llmin(mPartSysData.mPartData.mEndScale[0],
- mPartSysData.mPartData.mEndScale[1])),
- llmin((mPartSysData.mPartData.mStartScale[0]
- + mPartSysData.mPartData.mEndScale[0])/2,
- (mPartSysData.mPartData.mStartScale[1]
- + mPartSysData.mPartData.mEndScale[1])/2));
-
- F32 pixel_meter_ratio = LLViewerCamera::getInstance()->getPixelMeterRatio();
-
- // Maximum distance at which spawned particles will be viewable
- F32 max_dist = max_short_side * pixel_meter_ratio;
-
- if (max_dist < 0.25f)
- {
- // < 1 pixel wide at a distance of >=25cm. Particles
- // this tiny are useless and mostly spawned by buggy
- // sources
- mLastPartTime = mLastUpdateTime;
- break;
- }
-
- // Distance from camera
- F32 dist = (mPosAgent - LLViewerCamera::getInstance()->getOrigin()).magVec();
-
- // Particle size vs distance vs maxage throttling
-
- F32 limited_rate=0.f;
- if (dist - max_dist > 0.f)
- {
- if((dist - max_dist) * ref_rate_travelspeed > mPartSysData.mPartData.mMaxAge - 0.2f )
- {
- // You need to travel faster than 1 divided by reference rate m/s directly towards these particles to see them at least 0.2s
- mLastPartTime = mLastUpdateTime;
- break;
- }
- limited_rate = ((dist - max_dist) * ref_rate_travelspeed) / mPartSysData.mPartData.mMaxAge;
- }
-
- if(mDelay)
- {
- limited_rate = llmax(limited_rate, 0.01f * mDelay--) ;
- }
-
- S32 i;
- for (i = 0; i < mPartSysData.mBurstPartCount; i++)
- {
- if (ll_frand() < llmax(1.0f - LLViewerPartSim::getInstance()->getBurstRate(), limited_rate))
- {
- // Limit particle generation
- continue;
- }
-
- LLViewerPart* part = new LLViewerPart();
-
- part->init(this, mImagep, NULL);
- part->mFlags = mPartSysData.mPartData.mFlags;
- if (!mSourceObjectp.isNull() && mSourceObjectp->isHUDAttachment())
- {
- part->mFlags |= LLPartData::LL_PART_HUD;
- }
-
- if (part->mFlags & LLPartData::LL_PART_RIBBON_MASK && mLastPart)
- { //set previous particle's parent to this particle to chain ribbon together
- mLastPart->mParent = part;
- part->mChild = mLastPart;
- part->mAxis = LLVector3(0,0,1);
-
- if (mSourceObjectp.notNull())
- {
- LLQuaternion rot = mSourceObjectp->getRenderRotation();
- part->mAxis *= rot;
- }
- }
-
- mLastPart = part;
-
- part->mMaxAge = mPartSysData.mPartData.mMaxAge;
- part->mStartColor = mPartSysData.mPartData.mStartColor;
- part->mEndColor = mPartSysData.mPartData.mEndColor;
- part->mColor = part->mStartColor;
-
- part->mStartScale = mPartSysData.mPartData.mStartScale;
- part->mEndScale = mPartSysData.mPartData.mEndScale;
- part->mScale = part->mStartScale;
-
- part->mAccel = mPartSysData.mPartAccel;
-
- part->mBlendFuncDest = mPartSysData.mPartData.mBlendFuncDest;
- part->mBlendFuncSource = mPartSysData.mPartData.mBlendFuncSource;
-
- part->mStartGlow = mPartSysData.mPartData.mStartGlow;
- part->mEndGlow = mPartSysData.mPartData.mEndGlow;
- part->mGlow = LLColor4U(0, 0, 0, (U8) ll_round(part->mStartGlow*255.f));
-
- if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_DROP)
- {
- part->mPosAgent = mPosAgent;
- part->mVelocity.setVec(0.f, 0.f, 0.f);
- }
- else if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_EXPLODE)
- {
- part->mPosAgent = mPosAgent;
- LLVector3 part_dir_vector;
-
- F32 mvs;
- do
- {
- part_dir_vector.mV[VX] = ll_frand(2.f) - 1.f;
- part_dir_vector.mV[VY] = ll_frand(2.f) - 1.f;
- part_dir_vector.mV[VZ] = ll_frand(2.f) - 1.f;
- mvs = part_dir_vector.magVecSquared();
- }
- while ((mvs > 1.f) || (mvs < 0.01f));
-
- part_dir_vector.normVec();
- part->mPosAgent += mPartSysData.mBurstRadius*part_dir_vector;
- part->mVelocity = part_dir_vector;
- F32 speed = mPartSysData.mBurstSpeedMin + ll_frand(mPartSysData.mBurstSpeedMax - mPartSysData.mBurstSpeedMin);
- part->mVelocity *= speed;
- }
- else if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_ANGLE
- || mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_ANGLE_CONE)
- {
- part->mPosAgent = mPosAgent;
-
- // original implemenetation for part_dir_vector was just:
- LLVector3 part_dir_vector(0.0, 0.0, 1.0);
- // params from the script...
- // outer = outer cone angle
- // inner = inner cone angle
- // between outer and inner there will be particles
- F32 innerAngle = mPartSysData.mInnerAngle;
- F32 outerAngle = mPartSysData.mOuterAngle;
-
- // generate a random angle within the given space...
- F32 angle = innerAngle + ll_frand(outerAngle - innerAngle);
- // split which side it will go on randomly...
- if (ll_frand() < 0.5)
- {
- angle = -angle;
- }
- // Both patterns rotate around the x-axis first:
- part_dir_vector.rotVec(angle, 1.0, 0.0, 0.0);
-
- // If this is a cone pattern, rotate again to create the cone.
- if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_ANGLE_CONE)
- {
- part_dir_vector.rotVec(ll_frand(4*F_PI), 0.0, 0.0, 1.0);
- }
-
- // Only apply this rotation if using the deprecated angles.
- if (! (mPartSysData.mFlags & LLPartSysData::LL_PART_USE_NEW_ANGLE))
- {
- // Deprecated...
- part_dir_vector.rotVec(outerAngle, 1.0, 0.0, 0.0);
- }
-
- if (mSourceObjectp)
- {
- part_dir_vector = part_dir_vector * mSourceObjectp->getRenderRotation();
- }
-
- part_dir_vector = part_dir_vector * mRotation;
-
- part->mPosAgent += mPartSysData.mBurstRadius*part_dir_vector;
-
- part->mVelocity = part_dir_vector;
-
- F32 speed = mPartSysData.mBurstSpeedMin + ll_frand(mPartSysData.mBurstSpeedMax - mPartSysData.mBurstSpeedMin);
- part->mVelocity *= speed;
- }
- else
- {
- part->mPosAgent = mPosAgent;
- part->mVelocity.setVec(0.f, 0.f, 0.f);
- //LL_WARNS() << "Unknown source pattern " << (S32)mPartSysData.mPattern << LL_ENDL;
- }
-
- if (part->mFlags & LLPartData::LL_PART_FOLLOW_SRC_MASK || // SVC-193, VWR-717
- part->mFlags & LLPartData::LL_PART_TARGET_LINEAR_MASK)
- {
- mPartSysData.mBurstRadius = 0;
- }
-
- LLViewerPartSim::getInstance()->addPart(part);
- }
-
- mLastPartTime = mLastUpdateTime;
- dt_update -= mPartSysData.mBurstRate;
- }
-}
-
-// static
-LLPointer<LLViewerPartSourceScript> LLViewerPartSourceScript::unpackPSS(LLViewerObject *source_objp, LLPointer<LLViewerPartSourceScript> pssp, const S32 block_num)
-{
- if (!pssp)
- {
- if (LLPartSysData::isNullPS(block_num))
- {
- return NULL;
- }
- LLPointer<LLViewerPartSourceScript> new_pssp = new LLViewerPartSourceScript(source_objp);
- if (!new_pssp->mPartSysData.unpackBlock(block_num))
- {
- return NULL;
- }
- if (new_pssp->mPartSysData.mTargetUUID.notNull())
- {
- LLViewerObject *target_objp = gObjectList.findObject(new_pssp->mPartSysData.mTargetUUID);
- new_pssp->setTargetObject(target_objp);
- }
- return new_pssp;
- }
- else
- {
- if (LLPartSysData::isNullPS(block_num))
- {
- return NULL;
- }
-
- F32 prev_max_age = pssp->mPartSysData.mMaxAge;
- F32 prev_start_age = pssp->mPartSysData.mStartAge;
- if (!pssp->mPartSysData.unpackBlock(block_num))
- {
- return NULL;
- }
- else if (pssp->mPartSysData.mMaxAge
- && (prev_max_age != pssp->mPartSysData.mMaxAge || prev_start_age != pssp->mPartSysData.mStartAge))
- {
- // reusing existing pss, so reset time to allow particles to start again
- pssp->mLastUpdateTime = 0.f;
- pssp->mLastPartTime = 0.f;
- }
-
- if (pssp->mPartSysData.mTargetUUID.notNull())
- {
- LLViewerObject *target_objp = gObjectList.findObject(pssp->mPartSysData.mTargetUUID);
- pssp->setTargetObject(target_objp);
- }
- return pssp;
- }
-}
-
-
-LLPointer<LLViewerPartSourceScript> LLViewerPartSourceScript::unpackPSS(LLViewerObject *source_objp, LLPointer<LLViewerPartSourceScript> pssp, LLDataPacker &dp, bool legacy)
-{
- if (!pssp)
- {
- LLPointer<LLViewerPartSourceScript> new_pssp = new LLViewerPartSourceScript(source_objp);
- if (legacy)
- {
- if (!new_pssp->mPartSysData.unpackLegacy(dp))
- {
- return NULL;
- }
- }
- else
- {
- if (!new_pssp->mPartSysData.unpack(dp))
- {
- return NULL;
- }
- }
-
- if (new_pssp->mPartSysData.mTargetUUID.notNull())
- {
- LLViewerObject *target_objp = gObjectList.findObject(new_pssp->mPartSysData.mTargetUUID);
- new_pssp->setTargetObject(target_objp);
- }
-
- return new_pssp;
- }
- else
- {
- if (legacy)
- {
- if (!pssp->mPartSysData.unpackLegacy(dp))
- {
- return NULL;
- }
- }
- else
- {
- if (!pssp->mPartSysData.unpack(dp))
- {
- return NULL;
- }
- }
-
- if (pssp->mPartSysData.mTargetUUID.notNull())
- {
- LLViewerObject *target_objp = gObjectList.findObject(pssp->mPartSysData.mTargetUUID);
- pssp->setTargetObject(target_objp);
- }
- return pssp;
- }
-}
-
-
-/* static */
-LLPointer<LLViewerPartSourceScript> LLViewerPartSourceScript::createPSS(LLViewerObject *source_objp, const LLPartSysData& particle_parameters)
-{
- LLPointer<LLViewerPartSourceScript> new_pssp = new LLViewerPartSourceScript(source_objp);
-
- new_pssp->mPartSysData = particle_parameters;
-
- if (new_pssp->mPartSysData.mTargetUUID.notNull())
- {
- LLViewerObject *target_objp = gObjectList.findObject(new_pssp->mPartSysData.mTargetUUID);
- new_pssp->setTargetObject(target_objp);
- }
- return new_pssp;
-}
-
-
-void LLViewerPartSourceScript::setImage(LLViewerTexture *imagep)
-{
- mImagep = imagep;
-}
-
-void LLViewerPartSourceScript::setTargetObject(LLViewerObject *objp)
-{
- mTargetObjectp = objp;
-}
-
-
-
-
-
-LLViewerPartSourceSpiral::LLViewerPartSourceSpiral(const LLVector3 &pos) :
- LLViewerPartSource(LL_PART_SOURCE_CHAT)
-{
- mPosAgent = pos;
-}
-
-void LLViewerPartSourceSpiral::setDead()
-{
- mIsDead = true;
- mSourceObjectp = NULL;
-}
-
-
-void LLViewerPartSourceSpiral::updatePart(LLViewerPart &part, const F32 dt)
-{
- F32 frac = part.mLastUpdateTime/part.mMaxAge;
-
- LLVector3 center_pos;
- LLPointer<LLViewerPartSource>& ps = part.mPartSourcep;
- LLViewerPartSourceSpiral *pss = (LLViewerPartSourceSpiral *)ps.get();
- if (!pss->mSourceObjectp.isNull() && !pss->mSourceObjectp->mDrawable.isNull())
- {
- part.mPosAgent = pss->mSourceObjectp->getRenderPosition();
- }
- else
- {
- part.mPosAgent = pss->mPosAgent;
- }
- F32 x = sin(F_TWO_PI*frac + part.mParameter);
- F32 y = cos(F_TWO_PI*frac + part.mParameter);
-
- part.mPosAgent.mV[VX] += x;
- part.mPosAgent.mV[VY] += y;
- part.mPosAgent.mV[VZ] += -0.5f + frac;
-}
-
-
-void LLViewerPartSourceSpiral::update(const F32 dt)
-{
- if (!mImagep)
- {
- mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
- }
-
- const F32 RATE = 0.025f;
-
- mLastUpdateTime += dt;
-
- F32 dt_update = mLastUpdateTime - mLastPartTime;
- F32 max_time = llmax(1.f, 10.f*RATE);
- dt_update = llmin(max_time, dt_update);
-
- if (dt_update > RATE)
- {
- mLastPartTime = mLastUpdateTime;
- if (!LLViewerPartSim::getInstance()->shouldAddPart())
- {
- // Particle simulation says we have too many particles, skip all this
- return;
- }
-
- if (!mSourceObjectp.isNull() && !mSourceObjectp->mDrawable.isNull())
- {
- mPosAgent = mSourceObjectp->getRenderPosition();
- }
- LLViewerPart* part = new LLViewerPart();
- part->init(this, mImagep, updatePart);
- part->mStartColor = mColor;
- part->mEndColor = mColor;
- part->mEndColor.mV[3] = 0.f;
- part->mPosAgent = mPosAgent;
- part->mMaxAge = 1.f;
- part->mFlags = LLViewerPart::LL_PART_INTERP_COLOR_MASK;
- part->mLastUpdateTime = 0.f;
- part->mScale.mV[0] = 0.25f;
- part->mScale.mV[1] = 0.25f;
- part->mParameter = ll_frand(F_TWO_PI);
- part->mBlendFuncDest = LLRender::BF_ONE_MINUS_SOURCE_ALPHA;
- part->mBlendFuncSource = LLRender::BF_SOURCE_ALPHA;
- part->mStartGlow = 0.f;
- part->mEndGlow = 0.f;
- part->mGlow = LLColor4U(0, 0, 0, 0);
-
- LLViewerPartSim::getInstance()->addPart(part);
- }
-}
-
-void LLViewerPartSourceSpiral::setSourceObject(LLViewerObject *objp)
-{
- mSourceObjectp = objp;
-}
-
-void LLViewerPartSourceSpiral::setColor(const LLColor4 &color)
-{
- mColor = color;
-}
-
-
-
-
-
-LLViewerPartSourceBeam::LLViewerPartSourceBeam() :
- LLViewerPartSource(LL_PART_SOURCE_BEAM)
-{
-}
-
-LLViewerPartSourceBeam::~LLViewerPartSourceBeam()
-{
-}
-
-void LLViewerPartSourceBeam::setDead()
-{
- mIsDead = true;
- mSourceObjectp = NULL;
- mTargetObjectp = NULL;
-}
-
-void LLViewerPartSourceBeam::setColor(const LLColor4 &color)
-{
- mColor = color;
-}
-
-
-void LLViewerPartSourceBeam::updatePart(LLViewerPart &part, const F32 dt)
-{
- F32 frac = part.mLastUpdateTime/part.mMaxAge;
-
- LLViewerPartSource *ps = (LLViewerPartSource*)part.mPartSourcep;
- LLViewerPartSourceBeam *psb = (LLViewerPartSourceBeam *)ps;
- if (psb->mSourceObjectp.isNull())
- {
- part.mFlags = LLPartData::LL_PART_DEAD_MASK;
- return;
- }
-
- LLVector3 source_pos_agent;
- LLVector3 target_pos_agent;
- if (!psb->mSourceObjectp.isNull() && !psb->mSourceObjectp->mDrawable.isNull())
- {
- if (psb->mSourceObjectp->isAvatar())
- {
- LLViewerObject *objp = psb->mSourceObjectp;
- LLVOAvatar *avp = (LLVOAvatar *)objp;
- source_pos_agent = avp->mWristLeftp->getWorldPosition();
- }
- else
- {
- source_pos_agent = psb->mSourceObjectp->getRenderPosition();
- }
- }
- if (!psb->mTargetObjectp.isNull() && !psb->mTargetObjectp->mDrawable.isNull())
- {
- target_pos_agent = psb->mTargetObjectp->getRenderPosition();
- }
-
- part.mPosAgent = (1.f - frac) * source_pos_agent;
- if (psb->mTargetObjectp.isNull())
- {
- part.mPosAgent += frac * (gAgent.getPosAgentFromGlobal(psb->mLKGTargetPosGlobal));
- }
- else
- {
- part.mPosAgent += frac * target_pos_agent;
- }
-}
-
-
-void LLViewerPartSourceBeam::update(const F32 dt)
-{
- const F32 RATE = 0.025f;
-
- mLastUpdateTime += dt;
-
- if (!mSourceObjectp.isNull() && !mSourceObjectp->mDrawable.isNull())
- {
- if (mSourceObjectp->isAvatar())
- {
- LLViewerObject *objp = mSourceObjectp;
- LLVOAvatar *avp = (LLVOAvatar *)objp;
- mPosAgent = avp->mWristLeftp->getWorldPosition();
- }
- else
- {
- mPosAgent = mSourceObjectp->getRenderPosition();
- }
- }
-
- if (!mTargetObjectp.isNull() && !mTargetObjectp->mDrawable.isNull())
- {
- mTargetPosAgent = mTargetObjectp->getRenderPosition();
- }
- else if (!mLKGTargetPosGlobal.isExactlyZero())
- {
- mTargetPosAgent = gAgent.getPosAgentFromGlobal(mLKGTargetPosGlobal);
- }
-
- F32 dt_update = mLastUpdateTime - mLastPartTime;
- F32 max_time = llmax(1.f, 10.f*RATE);
- dt_update = llmin(max_time, dt_update);
-
- if (dt_update > RATE)
- {
- mLastPartTime = mLastUpdateTime;
- if (!LLViewerPartSim::getInstance()->shouldAddPart())
- {
- // Particle simulation says we have too many particles, skip all this
- return;
- }
-
- if (!mImagep)
- {
- mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
- }
-
- LLViewerPart* part = new LLViewerPart();
- part->init(this, mImagep, updatePart);
-
- part->mFlags = LLPartData::LL_PART_INTERP_COLOR_MASK |
- LLPartData::LL_PART_INTERP_SCALE_MASK |
- LLPartData::LL_PART_TARGET_POS_MASK |
- LLPartData::LL_PART_FOLLOW_VELOCITY_MASK;
- part->mMaxAge = 0.5f;
- part->mStartColor = mColor;
- part->mEndColor = part->mStartColor;
- part->mEndColor.mV[3] = 0.4f;
- part->mColor = part->mStartColor;
-
- part->mStartScale = LLVector2(0.1f, 0.1f);
- part->mEndScale = LLVector2(0.1f, 0.1f);
- part->mScale = part->mStartScale;
-
- part->mPosAgent = mPosAgent;
- part->mVelocity = mTargetPosAgent - mPosAgent;
-
- part->mBlendFuncDest = LLRender::BF_ONE_MINUS_SOURCE_ALPHA;
- part->mBlendFuncSource = LLRender::BF_SOURCE_ALPHA;
- part->mStartGlow = 0.f;
- part->mEndGlow = 0.f;
- part->mGlow = LLColor4U(0, 0, 0, 0);
-
- LLViewerPartSim::getInstance()->addPart(part);
- }
-}
-
-void LLViewerPartSourceBeam::setSourceObject(LLViewerObject* objp)
-{
- mSourceObjectp = objp;
-}
-
-void LLViewerPartSourceBeam::setTargetObject(LLViewerObject* objp)
-{
- mTargetObjectp = objp;
-}
-
-
-
-
-LLViewerPartSourceChat::LLViewerPartSourceChat(const LLVector3 &pos) :
- LLViewerPartSource(LL_PART_SOURCE_SPIRAL)
-{
- mPosAgent = pos;
-}
-
-void LLViewerPartSourceChat::setDead()
-{
- mIsDead = true;
- mSourceObjectp = NULL;
-}
-
-
-void LLViewerPartSourceChat::updatePart(LLViewerPart &part, const F32 dt)
-{
- F32 frac = part.mLastUpdateTime/part.mMaxAge;
-
- LLVector3 center_pos;
- LLViewerPartSource *ps = (LLViewerPartSource*)part.mPartSourcep;
- LLViewerPartSourceChat *pss = (LLViewerPartSourceChat *)ps;
- if (!pss->mSourceObjectp.isNull() && !pss->mSourceObjectp->mDrawable.isNull())
- {
- part.mPosAgent = pss->mSourceObjectp->getRenderPosition();
- }
- else
- {
- part.mPosAgent = pss->mPosAgent;
- }
- F32 x = sin(F_TWO_PI*frac + part.mParameter);
- F32 y = cos(F_TWO_PI*frac + part.mParameter);
-
- part.mPosAgent.mV[VX] += x;
- part.mPosAgent.mV[VY] += y;
- part.mPosAgent.mV[VZ] += -0.5f + frac;
-}
-
-
-void LLViewerPartSourceChat::update(const F32 dt)
-{
- if (!mImagep)
- {
- mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
- }
-
-
- const F32 RATE = 0.025f;
-
- mLastUpdateTime += dt;
-
- if (mLastUpdateTime > 2.f)
- {
- // Kill particle source because it has outlived its max age...
- setDead();
- return;
- }
-
- F32 dt_update = mLastUpdateTime - mLastPartTime;
-
- // Clamp us to generating at most one second's worth of particles on a frame.
- F32 max_time = llmax(1.f, 10.f*RATE);
- dt_update = llmin(max_time, dt_update);
-
- if (dt_update > RATE)
- {
- mLastPartTime = mLastUpdateTime;
- if (!LLViewerPartSim::getInstance()->shouldAddPart())
- {
- // Particle simulation says we have too many particles, skip all this
- return;
- }
-
- if (!mSourceObjectp.isNull() && !mSourceObjectp->mDrawable.isNull())
- {
- mPosAgent = mSourceObjectp->getRenderPosition();
- }
- LLViewerPart* part = new LLViewerPart();
- part->init(this, mImagep, updatePart);
- part->mStartColor = mColor;
- part->mEndColor = mColor;
- part->mEndColor.mV[3] = 0.f;
- part->mPosAgent = mPosAgent;
- part->mMaxAge = 1.f;
- part->mFlags = LLViewerPart::LL_PART_INTERP_COLOR_MASK;
- part->mLastUpdateTime = 0.f;
- part->mScale.mV[0] = 0.25f;
- part->mScale.mV[1] = 0.25f;
- part->mParameter = ll_frand(F_TWO_PI);
- part->mBlendFuncDest = LLRender::BF_ONE_MINUS_SOURCE_ALPHA;
- part->mBlendFuncSource = LLRender::BF_SOURCE_ALPHA;
- part->mStartGlow = 0.f;
- part->mEndGlow = 0.f;
- part->mGlow = LLColor4U(0, 0, 0, 0);
-
-
- LLViewerPartSim::getInstance()->addPart(part);
- }
-}
-
-void LLViewerPartSourceChat::setSourceObject(LLViewerObject *objp)
-{
- mSourceObjectp = objp;
-}
-
-void LLViewerPartSourceChat::setColor(const LLColor4 &color)
-{
- mColor = color;
-}
-
-
+/**
+ * @file llviewerpartsource.cpp
+ * @brief LLViewerPartSource class implementation
+ *
+ * $LicenseInfo:firstyear=2003&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+#include "llviewerpartsource.h"
+
+#include "llviewercontrol.h"
+#include "llrender.h"
+
+#include "llagent.h"
+#include "lldrawable.h"
+#include "llviewercamera.h"
+#include "llviewertexturelist.h"
+#include "llviewerobject.h"
+#include "llviewerobjectlist.h"
+#include "llvoavatar.h"
+#include "llworld.h"
+#include "pipeline.h"
+
+
+static LLVOAvatar* find_avatar(const LLUUID& id)
+{
+ LLViewerObject *obj = gObjectList.findObject(id);
+ while (obj && obj->isAttachment())
+ {
+ obj = (LLViewerObject *)obj->getParent();
+ }
+
+ if (obj && obj->isAvatar())
+ {
+ return (LLVOAvatar*)obj;
+ }
+ else
+ {
+ return NULL;
+ }
+}
+
+LLViewerPartSource::LLViewerPartSource(const U32 type) :
+ mType(type),
+ mOwnerUUID(LLUUID::null),
+ mPartFlags(0)
+{
+ mLastUpdateTime = 0.f;
+ mLastPartTime = 0.f;
+ mIsDead = false;
+ mIsSuspended = false;
+ static U32 id_seed = 0;
+ mID = ++id_seed;
+
+ mLastPart = NULL;
+
+ mDelay = 0 ;
+}
+
+void LLViewerPartSource::setDead()
+{
+ mIsDead = true;
+}
+
+
+void LLViewerPartSource::updatePart(LLViewerPart &part, const F32 dt)
+{
+}
+
+void LLViewerPartSource::update(const F32 dt)
+{
+ LL_ERRS() << "Creating default part source!" << LL_ENDL;
+}
+
+LLUUID LLViewerPartSource::getImageUUID() const
+{
+ LLViewerTexture* imagep = mImagep;
+ if(imagep)
+ {
+ return imagep->getID();
+ }
+ return LLUUID::null;
+}
+void LLViewerPartSource::setStart()
+{
+ //cancel delaying to start a new added particle source, because some particle source just emits for a short time.
+ //however, canceling this might cause overall particle emmitting fluctuate for a while because the new added source jumps to
+ //the current particle emmitting settings instantly. -->bao
+ mDelay = 0 ; //99
+}
+
+LLViewerPartSourceScript::LLViewerPartSourceScript(LLViewerObject *source_objp) :
+ LLViewerPartSource(LL_PART_SOURCE_SCRIPT)
+{
+ llassert(source_objp);
+ mSourceObjectp = source_objp;
+ mPosAgent = mSourceObjectp->getPositionAgent();
+ mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
+
+ mImagep->setAddressMode(LLTexUnit::TAM_CLAMP);
+}
+
+
+void LLViewerPartSourceScript::setDead()
+{
+ mIsDead = true;
+ mSourceObjectp = NULL;
+ mTargetObjectp = NULL;
+}
+
+void LLViewerPartSourceScript::update(const F32 dt)
+{
+ if( mIsSuspended )
+ return;
+
+ if (mOwnerAvatarp.isNull() && mOwnerUUID != LLUUID::null)
+ {
+ mOwnerAvatarp = find_avatar(mOwnerUUID);
+ }
+ if (mOwnerAvatarp.notNull() && LLVOAvatar::AOA_NORMAL != mOwnerAvatarp->getOverallAppearance())
+ {
+ return;
+ }
+
+ F32 old_update_time = mLastUpdateTime;
+ mLastUpdateTime += dt;
+
+ F32 ref_rate_travelspeed = llmin(LLViewerPartSim::getInstance()->getRefRate(), 1.f);
+
+ F32 dt_update = mLastUpdateTime - mLastPartTime;
+
+ // Update this for objects which have the follow flag set...
+ if (!mSourceObjectp.isNull())
+ {
+ if (mSourceObjectp->isDead())
+ {
+ mSourceObjectp = NULL;
+ }
+ else if (mSourceObjectp->mDrawable.notNull())
+ {
+ mPosAgent = mSourceObjectp->getRenderPosition();
+ }
+ }
+
+ if (mTargetObjectp.isNull()
+ && mPartSysData.mTargetUUID.notNull())
+ {
+ //
+ // Hmm, missing object, let's see if we can find it...
+ //
+
+ LLViewerObject *target_objp = gObjectList.findObject(mPartSysData.mTargetUUID);
+ setTargetObject(target_objp);
+ }
+
+ if (!mTargetObjectp.isNull())
+ {
+ if (mTargetObjectp->isDead())
+ {
+ mTargetObjectp = NULL;
+ }
+ else if (mTargetObjectp->mDrawable.notNull())
+ {
+ mTargetPosAgent = mTargetObjectp->getRenderPosition();
+ }
+ }
+
+ if (!mTargetObjectp)
+ {
+ mTargetPosAgent = mPosAgent;
+ }
+
+ if (mPartSysData.mMaxAge && ((mPartSysData.mStartAge + mLastUpdateTime + dt_update) > mPartSysData.mMaxAge))
+ {
+ // Kill particle source because it has outlived its max age...
+ setDead();
+ return;
+ }
+
+
+ if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_PARTICLES))
+ {
+ if (mSourceObjectp.notNull())
+ {
+ std::ostringstream ostr;
+ ostr << mPartSysData;
+ mSourceObjectp->setDebugText(ostr.str());
+ }
+ }
+
+ bool first_run = false;
+ if (old_update_time <= 0.f)
+ {
+ first_run = true;
+ }
+
+ F32 max_time = llmax(1.f, 10.f*mPartSysData.mBurstRate);
+ dt_update = llmin(max_time, dt_update);
+ while ((dt_update > mPartSysData.mBurstRate) || first_run)
+ {
+ first_run = false;
+
+ // Update the rotation of the particle source by the angular velocity
+ // First check to see if there is still an angular velocity.
+ F32 angular_velocity_mag = mPartSysData.mAngularVelocity.magVec();
+ if (angular_velocity_mag != 0.0f)
+ {
+ F32 av_angle = dt * angular_velocity_mag;
+ LLQuaternion dquat(av_angle, mPartSysData.mAngularVelocity);
+ mRotation *= dquat;
+ }
+ else
+ {
+ // No angular velocity. Reset our rotation.
+ mRotation.setQuat(0, 0, 0);
+ }
+
+ if (LLViewerPartSim::getInstance()->aboveParticleLimit())
+ {
+ // Don't bother doing any more updates if we're above the particle limit,
+ // just give up.
+ mLastPartTime = mLastUpdateTime;
+ break;
+
+ }
+
+ // find the greatest length that the shortest side of a system
+ // particle is expected to have
+ F32 max_short_side =
+ llmax(
+ llmax(llmin(mPartSysData.mPartData.mStartScale[0],
+ mPartSysData.mPartData.mStartScale[1]),
+ llmin(mPartSysData.mPartData.mEndScale[0],
+ mPartSysData.mPartData.mEndScale[1])),
+ llmin((mPartSysData.mPartData.mStartScale[0]
+ + mPartSysData.mPartData.mEndScale[0])/2,
+ (mPartSysData.mPartData.mStartScale[1]
+ + mPartSysData.mPartData.mEndScale[1])/2));
+
+ F32 pixel_meter_ratio = LLViewerCamera::getInstance()->getPixelMeterRatio();
+
+ // Maximum distance at which spawned particles will be viewable
+ F32 max_dist = max_short_side * pixel_meter_ratio;
+
+ if (max_dist < 0.25f)
+ {
+ // < 1 pixel wide at a distance of >=25cm. Particles
+ // this tiny are useless and mostly spawned by buggy
+ // sources
+ mLastPartTime = mLastUpdateTime;
+ break;
+ }
+
+ // Distance from camera
+ F32 dist = (mPosAgent - LLViewerCamera::getInstance()->getOrigin()).magVec();
+
+ // Particle size vs distance vs maxage throttling
+
+ F32 limited_rate=0.f;
+ if (dist - max_dist > 0.f)
+ {
+ if((dist - max_dist) * ref_rate_travelspeed > mPartSysData.mPartData.mMaxAge - 0.2f )
+ {
+ // You need to travel faster than 1 divided by reference rate m/s directly towards these particles to see them at least 0.2s
+ mLastPartTime = mLastUpdateTime;
+ break;
+ }
+ limited_rate = ((dist - max_dist) * ref_rate_travelspeed) / mPartSysData.mPartData.mMaxAge;
+ }
+
+ if(mDelay)
+ {
+ limited_rate = llmax(limited_rate, 0.01f * mDelay--) ;
+ }
+
+ S32 i;
+ for (i = 0; i < mPartSysData.mBurstPartCount; i++)
+ {
+ if (ll_frand() < llmax(1.0f - LLViewerPartSim::getInstance()->getBurstRate(), limited_rate))
+ {
+ // Limit particle generation
+ continue;
+ }
+
+ LLViewerPart* part = new LLViewerPart();
+
+ part->init(this, mImagep, NULL);
+ part->mFlags = mPartSysData.mPartData.mFlags;
+ if (!mSourceObjectp.isNull() && mSourceObjectp->isHUDAttachment())
+ {
+ part->mFlags |= LLPartData::LL_PART_HUD;
+ }
+
+ if (part->mFlags & LLPartData::LL_PART_RIBBON_MASK && mLastPart)
+ { //set previous particle's parent to this particle to chain ribbon together
+ mLastPart->mParent = part;
+ part->mChild = mLastPart;
+ part->mAxis = LLVector3(0,0,1);
+
+ if (mSourceObjectp.notNull())
+ {
+ LLQuaternion rot = mSourceObjectp->getRenderRotation();
+ part->mAxis *= rot;
+ }
+ }
+
+ mLastPart = part;
+
+ part->mMaxAge = mPartSysData.mPartData.mMaxAge;
+ part->mStartColor = mPartSysData.mPartData.mStartColor;
+ part->mEndColor = mPartSysData.mPartData.mEndColor;
+ part->mColor = part->mStartColor;
+
+ part->mStartScale = mPartSysData.mPartData.mStartScale;
+ part->mEndScale = mPartSysData.mPartData.mEndScale;
+ part->mScale = part->mStartScale;
+
+ part->mAccel = mPartSysData.mPartAccel;
+
+ part->mBlendFuncDest = mPartSysData.mPartData.mBlendFuncDest;
+ part->mBlendFuncSource = mPartSysData.mPartData.mBlendFuncSource;
+
+ part->mStartGlow = mPartSysData.mPartData.mStartGlow;
+ part->mEndGlow = mPartSysData.mPartData.mEndGlow;
+ part->mGlow = LLColor4U(0, 0, 0, (U8) ll_round(part->mStartGlow*255.f));
+
+ if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_DROP)
+ {
+ part->mPosAgent = mPosAgent;
+ part->mVelocity.setVec(0.f, 0.f, 0.f);
+ }
+ else if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_EXPLODE)
+ {
+ part->mPosAgent = mPosAgent;
+ LLVector3 part_dir_vector;
+
+ F32 mvs;
+ do
+ {
+ part_dir_vector.mV[VX] = ll_frand(2.f) - 1.f;
+ part_dir_vector.mV[VY] = ll_frand(2.f) - 1.f;
+ part_dir_vector.mV[VZ] = ll_frand(2.f) - 1.f;
+ mvs = part_dir_vector.magVecSquared();
+ }
+ while ((mvs > 1.f) || (mvs < 0.01f));
+
+ part_dir_vector.normVec();
+ part->mPosAgent += mPartSysData.mBurstRadius*part_dir_vector;
+ part->mVelocity = part_dir_vector;
+ F32 speed = mPartSysData.mBurstSpeedMin + ll_frand(mPartSysData.mBurstSpeedMax - mPartSysData.mBurstSpeedMin);
+ part->mVelocity *= speed;
+ }
+ else if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_ANGLE
+ || mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_ANGLE_CONE)
+ {
+ part->mPosAgent = mPosAgent;
+
+ // original implemenetation for part_dir_vector was just:
+ LLVector3 part_dir_vector(0.0, 0.0, 1.0);
+ // params from the script...
+ // outer = outer cone angle
+ // inner = inner cone angle
+ // between outer and inner there will be particles
+ F32 innerAngle = mPartSysData.mInnerAngle;
+ F32 outerAngle = mPartSysData.mOuterAngle;
+
+ // generate a random angle within the given space...
+ F32 angle = innerAngle + ll_frand(outerAngle - innerAngle);
+ // split which side it will go on randomly...
+ if (ll_frand() < 0.5)
+ {
+ angle = -angle;
+ }
+ // Both patterns rotate around the x-axis first:
+ part_dir_vector.rotVec(angle, 1.0, 0.0, 0.0);
+
+ // If this is a cone pattern, rotate again to create the cone.
+ if (mPartSysData.mPattern & LLPartSysData::LL_PART_SRC_PATTERN_ANGLE_CONE)
+ {
+ part_dir_vector.rotVec(ll_frand(4*F_PI), 0.0, 0.0, 1.0);
+ }
+
+ // Only apply this rotation if using the deprecated angles.
+ if (! (mPartSysData.mFlags & LLPartSysData::LL_PART_USE_NEW_ANGLE))
+ {
+ // Deprecated...
+ part_dir_vector.rotVec(outerAngle, 1.0, 0.0, 0.0);
+ }
+
+ if (mSourceObjectp)
+ {
+ part_dir_vector = part_dir_vector * mSourceObjectp->getRenderRotation();
+ }
+
+ part_dir_vector = part_dir_vector * mRotation;
+
+ part->mPosAgent += mPartSysData.mBurstRadius*part_dir_vector;
+
+ part->mVelocity = part_dir_vector;
+
+ F32 speed = mPartSysData.mBurstSpeedMin + ll_frand(mPartSysData.mBurstSpeedMax - mPartSysData.mBurstSpeedMin);
+ part->mVelocity *= speed;
+ }
+ else
+ {
+ part->mPosAgent = mPosAgent;
+ part->mVelocity.setVec(0.f, 0.f, 0.f);
+ //LL_WARNS() << "Unknown source pattern " << (S32)mPartSysData.mPattern << LL_ENDL;
+ }
+
+ if (part->mFlags & LLPartData::LL_PART_FOLLOW_SRC_MASK || // SVC-193, VWR-717
+ part->mFlags & LLPartData::LL_PART_TARGET_LINEAR_MASK)
+ {
+ mPartSysData.mBurstRadius = 0;
+ }
+
+ LLViewerPartSim::getInstance()->addPart(part);
+ }
+
+ mLastPartTime = mLastUpdateTime;
+ dt_update -= mPartSysData.mBurstRate;
+ }
+}
+
+// static
+LLPointer<LLViewerPartSourceScript> LLViewerPartSourceScript::unpackPSS(LLViewerObject *source_objp, LLPointer<LLViewerPartSourceScript> pssp, const S32 block_num)
+{
+ if (!pssp)
+ {
+ if (LLPartSysData::isNullPS(block_num))
+ {
+ return NULL;
+ }
+ LLPointer<LLViewerPartSourceScript> new_pssp = new LLViewerPartSourceScript(source_objp);
+ if (!new_pssp->mPartSysData.unpackBlock(block_num))
+ {
+ return NULL;
+ }
+ if (new_pssp->mPartSysData.mTargetUUID.notNull())
+ {
+ LLViewerObject *target_objp = gObjectList.findObject(new_pssp->mPartSysData.mTargetUUID);
+ new_pssp->setTargetObject(target_objp);
+ }
+ return new_pssp;
+ }
+ else
+ {
+ if (LLPartSysData::isNullPS(block_num))
+ {
+ return NULL;
+ }
+
+ F32 prev_max_age = pssp->mPartSysData.mMaxAge;
+ F32 prev_start_age = pssp->mPartSysData.mStartAge;
+ if (!pssp->mPartSysData.unpackBlock(block_num))
+ {
+ return NULL;
+ }
+ else if (pssp->mPartSysData.mMaxAge
+ && (prev_max_age != pssp->mPartSysData.mMaxAge || prev_start_age != pssp->mPartSysData.mStartAge))
+ {
+ // reusing existing pss, so reset time to allow particles to start again
+ pssp->mLastUpdateTime = 0.f;
+ pssp->mLastPartTime = 0.f;
+ }
+
+ if (pssp->mPartSysData.mTargetUUID.notNull())
+ {
+ LLViewerObject *target_objp = gObjectList.findObject(pssp->mPartSysData.mTargetUUID);
+ pssp->setTargetObject(target_objp);
+ }
+ return pssp;
+ }
+}
+
+
+LLPointer<LLViewerPartSourceScript> LLViewerPartSourceScript::unpackPSS(LLViewerObject *source_objp, LLPointer<LLViewerPartSourceScript> pssp, LLDataPacker &dp, bool legacy)
+{
+ if (!pssp)
+ {
+ LLPointer<LLViewerPartSourceScript> new_pssp = new LLViewerPartSourceScript(source_objp);
+ if (legacy)
+ {
+ if (!new_pssp->mPartSysData.unpackLegacy(dp))
+ {
+ return NULL;
+ }
+ }
+ else
+ {
+ if (!new_pssp->mPartSysData.unpack(dp))
+ {
+ return NULL;
+ }
+ }
+
+ if (new_pssp->mPartSysData.mTargetUUID.notNull())
+ {
+ LLViewerObject *target_objp = gObjectList.findObject(new_pssp->mPartSysData.mTargetUUID);
+ new_pssp->setTargetObject(target_objp);
+ }
+
+ return new_pssp;
+ }
+ else
+ {
+ if (legacy)
+ {
+ if (!pssp->mPartSysData.unpackLegacy(dp))
+ {
+ return NULL;
+ }
+ }
+ else
+ {
+ if (!pssp->mPartSysData.unpack(dp))
+ {
+ return NULL;
+ }
+ }
+
+ if (pssp->mPartSysData.mTargetUUID.notNull())
+ {
+ LLViewerObject *target_objp = gObjectList.findObject(pssp->mPartSysData.mTargetUUID);
+ pssp->setTargetObject(target_objp);
+ }
+ return pssp;
+ }
+}
+
+
+/* static */
+LLPointer<LLViewerPartSourceScript> LLViewerPartSourceScript::createPSS(LLViewerObject *source_objp, const LLPartSysData& particle_parameters)
+{
+ LLPointer<LLViewerPartSourceScript> new_pssp = new LLViewerPartSourceScript(source_objp);
+
+ new_pssp->mPartSysData = particle_parameters;
+
+ if (new_pssp->mPartSysData.mTargetUUID.notNull())
+ {
+ LLViewerObject *target_objp = gObjectList.findObject(new_pssp->mPartSysData.mTargetUUID);
+ new_pssp->setTargetObject(target_objp);
+ }
+ return new_pssp;
+}
+
+
+void LLViewerPartSourceScript::setImage(LLViewerTexture *imagep)
+{
+ mImagep = imagep;
+}
+
+void LLViewerPartSourceScript::setTargetObject(LLViewerObject *objp)
+{
+ mTargetObjectp = objp;
+}
+
+
+
+
+
+LLViewerPartSourceSpiral::LLViewerPartSourceSpiral(const LLVector3 &pos) :
+ LLViewerPartSource(LL_PART_SOURCE_CHAT)
+{
+ mPosAgent = pos;
+}
+
+void LLViewerPartSourceSpiral::setDead()
+{
+ mIsDead = true;
+ mSourceObjectp = NULL;
+}
+
+
+void LLViewerPartSourceSpiral::updatePart(LLViewerPart &part, const F32 dt)
+{
+ F32 frac = part.mLastUpdateTime/part.mMaxAge;
+
+ LLVector3 center_pos;
+ LLPointer<LLViewerPartSource>& ps = part.mPartSourcep;
+ LLViewerPartSourceSpiral *pss = (LLViewerPartSourceSpiral *)ps.get();
+ if (!pss->mSourceObjectp.isNull() && !pss->mSourceObjectp->mDrawable.isNull())
+ {
+ part.mPosAgent = pss->mSourceObjectp->getRenderPosition();
+ }
+ else
+ {
+ part.mPosAgent = pss->mPosAgent;
+ }
+ F32 x = sin(F_TWO_PI*frac + part.mParameter);
+ F32 y = cos(F_TWO_PI*frac + part.mParameter);
+
+ part.mPosAgent.mV[VX] += x;
+ part.mPosAgent.mV[VY] += y;
+ part.mPosAgent.mV[VZ] += -0.5f + frac;
+}
+
+
+void LLViewerPartSourceSpiral::update(const F32 dt)
+{
+ if (!mImagep)
+ {
+ mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
+ }
+
+ const F32 RATE = 0.025f;
+
+ mLastUpdateTime += dt;
+
+ F32 dt_update = mLastUpdateTime - mLastPartTime;
+ F32 max_time = llmax(1.f, 10.f*RATE);
+ dt_update = llmin(max_time, dt_update);
+
+ if (dt_update > RATE)
+ {
+ mLastPartTime = mLastUpdateTime;
+ if (!LLViewerPartSim::getInstance()->shouldAddPart())
+ {
+ // Particle simulation says we have too many particles, skip all this
+ return;
+ }
+
+ if (!mSourceObjectp.isNull() && !mSourceObjectp->mDrawable.isNull())
+ {
+ mPosAgent = mSourceObjectp->getRenderPosition();
+ }
+ LLViewerPart* part = new LLViewerPart();
+ part->init(this, mImagep, updatePart);
+ part->mStartColor = mColor;
+ part->mEndColor = mColor;
+ part->mEndColor.mV[3] = 0.f;
+ part->mPosAgent = mPosAgent;
+ part->mMaxAge = 1.f;
+ part->mFlags = LLViewerPart::LL_PART_INTERP_COLOR_MASK;
+ part->mLastUpdateTime = 0.f;
+ part->mScale.mV[0] = 0.25f;
+ part->mScale.mV[1] = 0.25f;
+ part->mParameter = ll_frand(F_TWO_PI);
+ part->mBlendFuncDest = LLRender::BF_ONE_MINUS_SOURCE_ALPHA;
+ part->mBlendFuncSource = LLRender::BF_SOURCE_ALPHA;
+ part->mStartGlow = 0.f;
+ part->mEndGlow = 0.f;
+ part->mGlow = LLColor4U(0, 0, 0, 0);
+
+ LLViewerPartSim::getInstance()->addPart(part);
+ }
+}
+
+void LLViewerPartSourceSpiral::setSourceObject(LLViewerObject *objp)
+{
+ mSourceObjectp = objp;
+}
+
+void LLViewerPartSourceSpiral::setColor(const LLColor4 &color)
+{
+ mColor = color;
+}
+
+
+
+
+
+LLViewerPartSourceBeam::LLViewerPartSourceBeam() :
+ LLViewerPartSource(LL_PART_SOURCE_BEAM)
+{
+}
+
+LLViewerPartSourceBeam::~LLViewerPartSourceBeam()
+{
+}
+
+void LLViewerPartSourceBeam::setDead()
+{
+ mIsDead = true;
+ mSourceObjectp = NULL;
+ mTargetObjectp = NULL;
+}
+
+void LLViewerPartSourceBeam::setColor(const LLColor4 &color)
+{
+ mColor = color;
+}
+
+
+void LLViewerPartSourceBeam::updatePart(LLViewerPart &part, const F32 dt)
+{
+ F32 frac = part.mLastUpdateTime/part.mMaxAge;
+
+ LLViewerPartSource *ps = (LLViewerPartSource*)part.mPartSourcep;
+ LLViewerPartSourceBeam *psb = (LLViewerPartSourceBeam *)ps;
+ if (psb->mSourceObjectp.isNull())
+ {
+ part.mFlags = LLPartData::LL_PART_DEAD_MASK;
+ return;
+ }
+
+ LLVector3 source_pos_agent;
+ LLVector3 target_pos_agent;
+ if (!psb->mSourceObjectp.isNull() && !psb->mSourceObjectp->mDrawable.isNull())
+ {
+ if (psb->mSourceObjectp->isAvatar())
+ {
+ LLViewerObject *objp = psb->mSourceObjectp;
+ LLVOAvatar *avp = (LLVOAvatar *)objp;
+ source_pos_agent = avp->mWristLeftp->getWorldPosition();
+ }
+ else
+ {
+ source_pos_agent = psb->mSourceObjectp->getRenderPosition();
+ }
+ }
+ if (!psb->mTargetObjectp.isNull() && !psb->mTargetObjectp->mDrawable.isNull())
+ {
+ target_pos_agent = psb->mTargetObjectp->getRenderPosition();
+ }
+
+ part.mPosAgent = (1.f - frac) * source_pos_agent;
+ if (psb->mTargetObjectp.isNull())
+ {
+ part.mPosAgent += frac * (gAgent.getPosAgentFromGlobal(psb->mLKGTargetPosGlobal));
+ }
+ else
+ {
+ part.mPosAgent += frac * target_pos_agent;
+ }
+}
+
+
+void LLViewerPartSourceBeam::update(const F32 dt)
+{
+ const F32 RATE = 0.025f;
+
+ mLastUpdateTime += dt;
+
+ if (!mSourceObjectp.isNull() && !mSourceObjectp->mDrawable.isNull())
+ {
+ if (mSourceObjectp->isAvatar())
+ {
+ LLViewerObject *objp = mSourceObjectp;
+ LLVOAvatar *avp = (LLVOAvatar *)objp;
+ mPosAgent = avp->mWristLeftp->getWorldPosition();
+ }
+ else
+ {
+ mPosAgent = mSourceObjectp->getRenderPosition();
+ }
+ }
+
+ if (!mTargetObjectp.isNull() && !mTargetObjectp->mDrawable.isNull())
+ {
+ mTargetPosAgent = mTargetObjectp->getRenderPosition();
+ }
+ else if (!mLKGTargetPosGlobal.isExactlyZero())
+ {
+ mTargetPosAgent = gAgent.getPosAgentFromGlobal(mLKGTargetPosGlobal);
+ }
+
+ F32 dt_update = mLastUpdateTime - mLastPartTime;
+ F32 max_time = llmax(1.f, 10.f*RATE);
+ dt_update = llmin(max_time, dt_update);
+
+ if (dt_update > RATE)
+ {
+ mLastPartTime = mLastUpdateTime;
+ if (!LLViewerPartSim::getInstance()->shouldAddPart())
+ {
+ // Particle simulation says we have too many particles, skip all this
+ return;
+ }
+
+ if (!mImagep)
+ {
+ mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
+ }
+
+ LLViewerPart* part = new LLViewerPart();
+ part->init(this, mImagep, updatePart);
+
+ part->mFlags = LLPartData::LL_PART_INTERP_COLOR_MASK |
+ LLPartData::LL_PART_INTERP_SCALE_MASK |
+ LLPartData::LL_PART_TARGET_POS_MASK |
+ LLPartData::LL_PART_FOLLOW_VELOCITY_MASK;
+ part->mMaxAge = 0.5f;
+ part->mStartColor = mColor;
+ part->mEndColor = part->mStartColor;
+ part->mEndColor.mV[3] = 0.4f;
+ part->mColor = part->mStartColor;
+
+ part->mStartScale = LLVector2(0.1f, 0.1f);
+ part->mEndScale = LLVector2(0.1f, 0.1f);
+ part->mScale = part->mStartScale;
+
+ part->mPosAgent = mPosAgent;
+ part->mVelocity = mTargetPosAgent - mPosAgent;
+
+ part->mBlendFuncDest = LLRender::BF_ONE_MINUS_SOURCE_ALPHA;
+ part->mBlendFuncSource = LLRender::BF_SOURCE_ALPHA;
+ part->mStartGlow = 0.f;
+ part->mEndGlow = 0.f;
+ part->mGlow = LLColor4U(0, 0, 0, 0);
+
+ LLViewerPartSim::getInstance()->addPart(part);
+ }
+}
+
+void LLViewerPartSourceBeam::setSourceObject(LLViewerObject* objp)
+{
+ mSourceObjectp = objp;
+}
+
+void LLViewerPartSourceBeam::setTargetObject(LLViewerObject* objp)
+{
+ mTargetObjectp = objp;
+}
+
+
+
+
+LLViewerPartSourceChat::LLViewerPartSourceChat(const LLVector3 &pos) :
+ LLViewerPartSource(LL_PART_SOURCE_SPIRAL)
+{
+ mPosAgent = pos;
+}
+
+void LLViewerPartSourceChat::setDead()
+{
+ mIsDead = true;
+ mSourceObjectp = NULL;
+}
+
+
+void LLViewerPartSourceChat::updatePart(LLViewerPart &part, const F32 dt)
+{
+ F32 frac = part.mLastUpdateTime/part.mMaxAge;
+
+ LLVector3 center_pos;
+ LLViewerPartSource *ps = (LLViewerPartSource*)part.mPartSourcep;
+ LLViewerPartSourceChat *pss = (LLViewerPartSourceChat *)ps;
+ if (!pss->mSourceObjectp.isNull() && !pss->mSourceObjectp->mDrawable.isNull())
+ {
+ part.mPosAgent = pss->mSourceObjectp->getRenderPosition();
+ }
+ else
+ {
+ part.mPosAgent = pss->mPosAgent;
+ }
+ F32 x = sin(F_TWO_PI*frac + part.mParameter);
+ F32 y = cos(F_TWO_PI*frac + part.mParameter);
+
+ part.mPosAgent.mV[VX] += x;
+ part.mPosAgent.mV[VY] += y;
+ part.mPosAgent.mV[VZ] += -0.5f + frac;
+}
+
+
+void LLViewerPartSourceChat::update(const F32 dt)
+{
+ if (!mImagep)
+ {
+ mImagep = LLViewerTextureManager::getFetchedTextureFromFile("pixiesmall.j2c");
+ }
+
+
+ const F32 RATE = 0.025f;
+
+ mLastUpdateTime += dt;
+
+ if (mLastUpdateTime > 2.f)
+ {
+ // Kill particle source because it has outlived its max age...
+ setDead();
+ return;
+ }
+
+ F32 dt_update = mLastUpdateTime - mLastPartTime;
+
+ // Clamp us to generating at most one second's worth of particles on a frame.
+ F32 max_time = llmax(1.f, 10.f*RATE);
+ dt_update = llmin(max_time, dt_update);
+
+ if (dt_update > RATE)
+ {
+ mLastPartTime = mLastUpdateTime;
+ if (!LLViewerPartSim::getInstance()->shouldAddPart())
+ {
+ // Particle simulation says we have too many particles, skip all this
+ return;
+ }
+
+ if (!mSourceObjectp.isNull() && !mSourceObjectp->mDrawable.isNull())
+ {
+ mPosAgent = mSourceObjectp->getRenderPosition();
+ }
+ LLViewerPart* part = new LLViewerPart();
+ part->init(this, mImagep, updatePart);
+ part->mStartColor = mColor;
+ part->mEndColor = mColor;
+ part->mEndColor.mV[3] = 0.f;
+ part->mPosAgent = mPosAgent;
+ part->mMaxAge = 1.f;
+ part->mFlags = LLViewerPart::LL_PART_INTERP_COLOR_MASK;
+ part->mLastUpdateTime = 0.f;
+ part->mScale.mV[0] = 0.25f;
+ part->mScale.mV[1] = 0.25f;
+ part->mParameter = ll_frand(F_TWO_PI);
+ part->mBlendFuncDest = LLRender::BF_ONE_MINUS_SOURCE_ALPHA;
+ part->mBlendFuncSource = LLRender::BF_SOURCE_ALPHA;
+ part->mStartGlow = 0.f;
+ part->mEndGlow = 0.f;
+ part->mGlow = LLColor4U(0, 0, 0, 0);
+
+
+ LLViewerPartSim::getInstance()->addPart(part);
+ }
+}
+
+void LLViewerPartSourceChat::setSourceObject(LLViewerObject *objp)
+{
+ mSourceObjectp = objp;
+}
+
+void LLViewerPartSourceChat::setColor(const LLColor4 &color)
+{
+ mColor = color;
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-09-19 16:54:11 +0000