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Diffstat (limited to 'indra/newview/llwlanimator.cpp')
| -rw-r--r-- | indra/newview/llwlanimator.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/indra/newview/llwlanimator.cpp b/indra/newview/llwlanimator.cpp new file mode 100644 index 0000000000..1b158d0685 --- /dev/null +++ b/indra/newview/llwlanimator.cpp @@ -0,0 +1,168 @@ +/** + * @file llwlanimator.cpp + * @brief Implementation for the LLWLAnimator class. + * + * $LicenseInfo:firstyear=2007&license=viewergpl$ + * + * Copyright (c) 2007-2007, Linden Research, Inc. + * + * Second Life Viewer Source Code + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlife.com/developers/opensource/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at http://secondlife.com/developers/opensource/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + * $/LicenseInfo$ + */ + +#include "llviewerprecompiledheaders.h" + +#include "llwlanimator.h" +#include "llsky.h" +#include "pipeline.h" +#include "llwlparammanager.h" + +LLWLAnimator::LLWLAnimator() : mStartTime(0), mDayRate(1), mDayTime(0), + mIsRunning(FALSE), mUseLindenTime(false) +{ + mDayTime = 0; +} + +void LLWLAnimator::update(LLWLParamSet& curParams) +{ + F64 curTime; + curTime = getDayTime(); + + // don't do anything if empty + if(mTimeTrack.size() == 0) { + return; + } + + // start it off + mFirstIt = mTimeTrack.begin(); + mSecondIt = mTimeTrack.begin(); + mSecondIt++; + + // grab the two tween iterators + while(mSecondIt != mTimeTrack.end() && curTime > mSecondIt->first) { + mFirstIt++; + mSecondIt++; + } + + // scroll it around when you get to the end + if(mSecondIt == mTimeTrack.end() || mFirstIt->first > curTime) { + mSecondIt = mTimeTrack.begin(); + mFirstIt = mTimeTrack.end(); + mFirstIt--; + } + + F32 weight = 0; + + if(mFirstIt->first < mSecondIt->first) { + + // get the delta time and the proper weight + weight = F32 (curTime - mFirstIt->first) / + (mSecondIt->first - mFirstIt->first); + + // handle the ends + } else if(mFirstIt->first > mSecondIt->first) { + + // right edge of time line + if(curTime >= mFirstIt->first) { + weight = F32 (curTime - mFirstIt->first) / + ((1 + mSecondIt->first) - mFirstIt->first); + + // left edge of time line + } else { + weight = F32 ((1 + curTime) - mFirstIt->first) / + ((1 + mSecondIt->first) - mFirstIt->first); + } + + + // handle same as whatever the last one is + } else { + weight = 1; + } + + // do the interpolation and set the parameters + curParams.mix(LLWLParamManager::instance()->mParamList[mFirstIt->second], + LLWLParamManager::instance()->mParamList[mSecondIt->second], weight); +} + +F64 LLWLAnimator::getDayTime() +{ + if(!mIsRunning) { + return mDayTime; + } + + if(mUseLindenTime) { + + F32 phase = gSky.getSunPhase() / F_PI; + + // we're not solving the non-linear equation that determines sun phase + // we're just linearly interpolating between the major points + if (phase <= 5.0 / 4.0) { + mDayTime = (1.0 / 3.0) * phase + (1.0 / 3.0); + } else { + mDayTime = phase - (1.0 / 2.0); + } + + if(mDayTime > 1) { + mDayTime--; + } + + return mDayTime; + } + + // get the time; + mDayTime = (LLTimer::getElapsedSeconds() - mStartTime) / mDayRate; + + // clamp it + if(mDayTime < 0) { + mDayTime = 0; + } + while(mDayTime > 1) { + mDayTime--; + } + + return (F32)mDayTime; +} + +void LLWLAnimator::setDayTime(F64 dayTime) +{ + //retroactively set start time; + mStartTime = LLTimer::getElapsedSeconds() - dayTime * mDayRate; + mDayTime = dayTime; + + // clamp it + if(mDayTime < 0) { + mDayTime = 0; + } else if(mDayTime > 1) { + mDayTime = 1; + } +} + + +void LLWLAnimator::setTrack(std::map<F32, std::string>& curTrack, + F32 dayRate, F64 dayTime, bool run) +{ + mTimeTrack = curTrack; + mDayRate = dayRate; + setDayTime(dayTime); + + mIsRunning = run; +} |