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https://github.com/OpenMW/openmw.git
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453 lines
13 KiB
C++
453 lines
13 KiB
C++
#include "controller.hpp"
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#include <osg/MatrixTransform>
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#include <osg/TexMat>
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#include <osg/Material>
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#include <osg/Texture2D>
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#include <osg/UserDataContainer>
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#include <osgAnimation/MorphGeometry>
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#include <osgParticle/Emitter>
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#include <components/nif/data.hpp>
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#include "userdata.hpp"
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namespace NifOsg
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{
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ControllerFunction::ControllerFunction(const Nif::Controller *ctrl)
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: mFrequency(ctrl->frequency)
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, mPhase(ctrl->phase)
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, mStartTime(ctrl->timeStart)
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, mStopTime(ctrl->timeStop)
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, mExtrapolationMode(static_cast<ExtrapolationMode>((ctrl->flags&0x6) >> 1))
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{
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}
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float ControllerFunction::calculate(float value) const
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{
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float time = mFrequency * value + mPhase;
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if (time >= mStartTime && time <= mStopTime)
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return time;
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switch (mExtrapolationMode)
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{
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case Cycle:
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{
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float delta = mStopTime - mStartTime;
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if ( delta <= 0 )
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return mStartTime;
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float cycles = ( time - mStartTime ) / delta;
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float remainder = ( cycles - std::floor( cycles ) ) * delta;
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return mStartTime + remainder;
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}
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case Reverse:
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{
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float delta = mStopTime - mStartTime;
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if ( delta <= 0 )
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return mStartTime;
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float cycles = ( time - mStartTime ) / delta;
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float remainder = ( cycles - std::floor( cycles ) ) * delta;
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// Even number of cycles?
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if ( ( static_cast<int>(std::fabs( std::floor( cycles ) )) % 2 ) == 0 )
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return mStartTime + remainder;
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return mStopTime - remainder;
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}
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case Constant:
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default:
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return std::min(mStopTime, std::max(mStartTime, time));
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}
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}
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float ControllerFunction::getMaximum() const
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{
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return mStopTime;
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}
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KeyframeController::KeyframeController()
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{
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}
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KeyframeController::KeyframeController(const KeyframeController ©, const osg::CopyOp ©op)
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: osg::NodeCallback(copy, copyop)
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, Controller(copy)
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, mRotations(copy.mRotations)
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, mXRotations(copy.mXRotations)
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, mYRotations(copy.mYRotations)
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, mZRotations(copy.mZRotations)
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, mTranslations(copy.mTranslations)
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, mScales(copy.mScales)
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{
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}
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KeyframeController::KeyframeController(const Nif::NiKeyframeData *data)
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: mRotations(data->mRotations)
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, mXRotations(data->mXRotations)
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, mYRotations(data->mYRotations)
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, mZRotations(data->mZRotations)
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, mTranslations(data->mTranslations)
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, mScales(data->mScales)
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{
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}
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osg::Quat KeyframeController::interpKey(const Nif::QuaternionKeyMap::MapType &keys, float time)
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{
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if(time <= keys.begin()->first)
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return keys.begin()->second.mValue;
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Nif::QuaternionKeyMap::MapType::const_iterator it = keys.lower_bound(time);
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if (it != keys.end())
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{
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float aTime = it->first;
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const Nif::QuaternionKey* aKey = &it->second;
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assert (it != keys.begin()); // Shouldn't happen, was checked at beginning of this function
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Nif::QuaternionKeyMap::MapType::const_iterator last = --it;
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float aLastTime = last->first;
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const Nif::QuaternionKey* aLastKey = &last->second;
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float a = (time - aLastTime) / (aTime - aLastTime);
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osg::Quat v1 = aLastKey->mValue;
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osg::Quat v2 = aKey->mValue;
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// don't take the long path
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if (v1.x()*v2.x() + v1.y()*v2.y() + v1.z()*v2.z() + v1.w()*v2.w() < 0) // dotProduct(v1,v2)
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v1 = -v1;
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osg::Quat result;
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result.slerp(a, v1, v2);
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return result;
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}
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else
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return keys.rbegin()->second.mValue;
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}
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osg::Quat KeyframeController::getXYZRotation(float time) const
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{
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float xrot = 0, yrot = 0, zrot = 0;
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if (mXRotations.get())
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xrot = interpKey(mXRotations->mKeys, time);
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if (mYRotations.get())
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yrot = interpKey(mYRotations->mKeys, time);
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if (mZRotations.get())
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zrot = interpKey(mZRotations->mKeys, time);
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osg::Quat xr(xrot, osg::Vec3f(1,0,0));
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osg::Quat yr(yrot, osg::Vec3f(0,1,0));
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osg::Quat zr(zrot, osg::Vec3f(0,0,1));
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return (xr*yr*zr);
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}
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osg::Vec3f KeyframeController::getTranslation(float time) const
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{
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if(mTranslations.get() && mTranslations->mKeys.size() > 0)
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return interpKey(mTranslations->mKeys, time);
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return osg::Vec3f();
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}
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void KeyframeController::operator() (osg::Node* node, osg::NodeVisitor* nv)
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{
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if (hasInput())
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{
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osg::MatrixTransform* trans = static_cast<osg::MatrixTransform*>(node);
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osg::Matrix mat = trans->getMatrix();
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float time = getInputValue(nv);
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NodeUserData* userdata = static_cast<NodeUserData*>(trans->getUserDataContainer()->getUserObject(0));
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Nif::Matrix3& rot = userdata->mRotationScale;
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bool setRot = false;
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if(mRotations.get() && !mRotations->mKeys.empty())
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{
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mat.setRotate(interpKey(mRotations->mKeys, time));
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setRot = true;
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}
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else if (mXRotations.get() || mYRotations.get() || mZRotations.get())
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{
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mat.setRotate(getXYZRotation(time));
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setRot = true;
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}
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else
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{
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// no rotation specified, use the previous value from the UserData
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for (int i=0;i<3;++i)
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for (int j=0;j<3;++j)
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mat(j,i) = rot.mValues[i][j]; // NB column/row major difference
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}
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if (setRot) // copy the new values back to the UserData
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for (int i=0;i<3;++i)
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for (int j=0;j<3;++j)
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rot.mValues[i][j] = mat(j,i); // NB column/row major difference
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float& scale = userdata->mScale;
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if(mScales.get() && !mScales->mKeys.empty())
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scale = interpKey(mScales->mKeys, time);
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for (int i=0;i<3;++i)
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for (int j=0;j<3;++j)
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mat(i,j) *= scale;
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if(mTranslations.get() && !mTranslations->mKeys.empty())
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mat.setTrans(interpKey(mTranslations->mKeys, time));
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trans->setMatrix(mat);
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}
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traverse(node, nv);
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}
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GeomMorpherController::GeomMorpherController()
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{
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}
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GeomMorpherController::GeomMorpherController(const GeomMorpherController ©, const osg::CopyOp ©op)
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: osg::Drawable::UpdateCallback(copy, copyop)
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, Controller(copy)
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, mKeyFrames(copy.mKeyFrames)
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{
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}
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GeomMorpherController::GeomMorpherController(const Nif::NiMorphData *data)
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{
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for (unsigned int i=0; i<data->mMorphs.size(); ++i)
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mKeyFrames.push_back(data->mMorphs[i].mKeyFrames);
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}
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void GeomMorpherController::update(osg::NodeVisitor *nv, osg::Drawable *drawable)
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{
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osgAnimation::MorphGeometry* morphGeom = dynamic_cast<osgAnimation::MorphGeometry*>(drawable);
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if (morphGeom)
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{
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if (hasInput())
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{
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if (mKeyFrames.size() <= 1)
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return;
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float input = getInputValue(nv);
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int i = 0;
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for (std::vector<Nif::FloatKeyMapPtr>::iterator it = mKeyFrames.begin()+1; it != mKeyFrames.end(); ++it,++i)
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{
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float val = 0;
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if (!(*it)->mKeys.empty())
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val = interpKey((*it)->mKeys, input);
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val = std::max(0.f, std::min(1.f, val));
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morphGeom->setWeight(i, val);
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}
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}
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morphGeom->transformSoftwareMethod();
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}
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}
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UVController::UVController()
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{
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}
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UVController::UVController(const Nif::NiUVData *data, std::set<int> textureUnits)
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: mUTrans(data->mKeyList[0])
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, mVTrans(data->mKeyList[1])
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, mUScale(data->mKeyList[2])
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, mVScale(data->mKeyList[3])
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, mTextureUnits(textureUnits)
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{
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}
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UVController::UVController(const UVController& copy, const osg::CopyOp& copyop)
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: osg::Object(copy, copyop), StateSetUpdater(copy, copyop), Controller(copy)
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, mUTrans(copy.mUTrans)
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, mVTrans(copy.mVTrans)
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, mUScale(copy.mUScale)
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, mVScale(copy.mVScale)
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, mTextureUnits(copy.mTextureUnits)
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{
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}
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void UVController::setDefaults(osg::StateSet *stateset)
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{
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osg::TexMat* texMat = new osg::TexMat;
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for (std::set<int>::const_iterator it = mTextureUnits.begin(); it != mTextureUnits.end(); ++it)
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stateset->setTextureAttributeAndModes(*it, texMat, osg::StateAttribute::ON);
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}
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void UVController::apply(osg::StateSet* stateset, osg::NodeVisitor* nv)
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{
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if (hasInput())
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{
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float value = getInputValue(nv);
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float uTrans = interpKey(mUTrans->mKeys, value, 0.0f);
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float vTrans = interpKey(mVTrans->mKeys, value, 0.0f);
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float uScale = interpKey(mUScale->mKeys, value, 1.0f);
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float vScale = interpKey(mVScale->mKeys, value, 1.0f);
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osg::Matrixf mat = osg::Matrixf::scale(uScale, vScale, 1);
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mat.setTrans(uTrans, vTrans, 0);
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// setting once is enough because all other texture units share the same TexMat (see setDefaults).
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if (mTextureUnits.size())
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{
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osg::TexMat* texMat = static_cast<osg::TexMat*>(stateset->getTextureAttribute(*mTextureUnits.begin(), osg::StateAttribute::TEXMAT));
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texMat->setMatrix(mat);
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}
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}
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}
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VisController::VisController(const Nif::NiVisData *data)
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: mData(data->mVis)
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{
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}
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VisController::VisController()
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{
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}
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VisController::VisController(const VisController ©, const osg::CopyOp ©op)
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: osg::NodeCallback(copy, copyop)
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, Controller(copy)
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, mData(copy.mData)
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{
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}
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bool VisController::calculate(float time) const
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{
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if(mData.size() == 0)
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return true;
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for(size_t i = 1;i < mData.size();i++)
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{
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if(mData[i].time > time)
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return mData[i-1].isSet;
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}
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return mData.back().isSet;
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}
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void VisController::operator() (osg::Node* node, osg::NodeVisitor* nv)
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{
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if (hasInput())
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{
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bool vis = calculate(getInputValue(nv));
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// Leave 0x1 enabled for UpdateVisitor, so we can make ourselves visible again in the future from this update callback
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node->setNodeMask(vis ? ~0 : 0x1);
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}
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traverse(node, nv);
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}
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AlphaController::AlphaController(const Nif::NiFloatData *data)
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: mData(data->mKeyList)
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{
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}
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AlphaController::AlphaController()
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{
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}
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AlphaController::AlphaController(const AlphaController ©, const osg::CopyOp ©op)
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: StateSetUpdater(copy, copyop), Controller(copy), ValueInterpolator()
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, mData(copy.mData)
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{
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}
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void AlphaController::apply(osg::StateSet *stateset, osg::NodeVisitor *nv)
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{
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if (hasInput())
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{
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float value = interpKey(mData->mKeys, getInputValue(nv));
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osg::Material* mat = static_cast<osg::Material*>(stateset->getAttribute(osg::StateAttribute::MATERIAL));
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osg::Vec4f diffuse = mat->getDiffuse(osg::Material::FRONT_AND_BACK);
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diffuse.a() = value;
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mat->setDiffuse(osg::Material::FRONT_AND_BACK, diffuse);
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}
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}
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MaterialColorController::MaterialColorController(const Nif::NiPosData *data)
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: mData(data->mKeyList)
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{
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}
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MaterialColorController::MaterialColorController()
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{
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}
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MaterialColorController::MaterialColorController(const MaterialColorController ©, const osg::CopyOp ©op)
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: StateSetUpdater(copy, copyop), Controller(copy)
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, mData(copy.mData)
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{
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}
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void MaterialColorController::apply(osg::StateSet *stateset, osg::NodeVisitor *nv)
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{
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if (hasInput())
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{
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osg::Vec3f value = interpKey(mData->mKeys, getInputValue(nv));
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osg::Material* mat = static_cast<osg::Material*>(stateset->getAttribute(osg::StateAttribute::MATERIAL));
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osg::Vec4f diffuse = mat->getDiffuse(osg::Material::FRONT_AND_BACK);
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diffuse.set(value.x(), value.y(), value.z(), diffuse.a());
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mat->setDiffuse(osg::Material::FRONT_AND_BACK, diffuse);
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}
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}
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FlipController::FlipController(const Nif::NiFlipController *ctrl, std::vector<osg::ref_ptr<osg::Texture2D> > textures)
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: mTexSlot(ctrl->mTexSlot)
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, mDelta(ctrl->mDelta)
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, mTextures(textures)
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{
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}
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FlipController::FlipController()
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{
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}
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FlipController::FlipController(const FlipController ©, const osg::CopyOp ©op)
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: StateSetUpdater(copy, copyop)
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, Controller(copy)
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, mTexSlot(copy.mTexSlot)
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, mDelta(copy.mDelta)
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, mTextures(copy.mTextures)
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{
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}
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void FlipController::apply(osg::StateSet* stateset, osg::NodeVisitor* nv)
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{
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if (hasInput() && mDelta != 0)
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{
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int curTexture = int(getInputValue(nv) / mDelta) % mTextures.size();
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stateset->setTextureAttribute(mTexSlot, mTextures[curTexture]);
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}
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}
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ParticleSystemController::ParticleSystemController(const Nif::NiParticleSystemController *ctrl)
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: mEmitStart(ctrl->startTime), mEmitStop(ctrl->stopTime)
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{
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}
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ParticleSystemController::ParticleSystemController()
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{
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}
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ParticleSystemController::ParticleSystemController(const ParticleSystemController ©, const osg::CopyOp ©op)
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: osg::NodeCallback(copy, copyop)
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, Controller(copy)
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, mEmitStart(copy.mEmitStart)
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, mEmitStop(copy.mEmitStop)
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{
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}
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void ParticleSystemController::operator() (osg::Node* node, osg::NodeVisitor* nv)
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{
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if (hasInput())
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{
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osgParticle::ParticleProcessor* emitter = dynamic_cast<osgParticle::ParticleProcessor*>(node);
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float time = getInputValue(nv);
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if (emitter)
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emitter->setEnabled(time >= mEmitStart && time < mEmitStop);
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}
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traverse(node, nv);
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}
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}
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