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146 lines
3.6 KiB
C++
146 lines
3.6 KiB
C++
#include "controller.hpp"
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#include "statesetupdater.hpp"
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#include <osg/Drawable>
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#include <osg/Geode>
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#include <osg/NodeCallback>
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#include <osg/Version>
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namespace SceneUtil
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{
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Controller::Controller()
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{
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}
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bool Controller::hasInput() const
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{
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return mSource.get() != NULL;
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}
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float Controller::getInputValue(osg::NodeVisitor* nv)
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{
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if (mFunction)
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return mFunction->calculate(mSource->getValue(nv));
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else
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return mSource->getValue(nv);
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}
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void Controller::setSource(boost::shared_ptr<ControllerSource> source)
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{
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mSource = source;
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}
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void Controller::setFunction(boost::shared_ptr<ControllerFunction> function)
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{
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mFunction = function;
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}
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boost::shared_ptr<ControllerSource> Controller::getSource() const
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{
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return mSource;
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}
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boost::shared_ptr<ControllerFunction> Controller::getFunction() const
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{
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return mFunction;
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}
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FrameTimeSource::FrameTimeSource()
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{
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}
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float FrameTimeSource::getValue(osg::NodeVisitor *nv)
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{
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return nv->getFrameStamp()->getSimulationTime();
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}
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ControllerVisitor::ControllerVisitor()
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: osg::NodeVisitor(TRAVERSE_ALL_CHILDREN)
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{
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}
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void ControllerVisitor::apply(osg::Node &node)
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{
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#if OSG_MIN_VERSION_REQUIRED(3,3,3)
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osg::Callback* callback = node.getUpdateCallback();
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#else
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osg::NodeCallback* callback = node.getUpdateCallback();
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#endif
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while (callback)
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{
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if (Controller* ctrl = dynamic_cast<Controller*>(callback))
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visit(node, *ctrl);
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if (CompositeStateSetUpdater* composite = dynamic_cast<CompositeStateSetUpdater*>(callback))
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{
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for (unsigned int i=0; i<composite->getNumControllers(); ++i)
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{
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StateSetUpdater* statesetcontroller = composite->getController(i);
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if (Controller* ctrl = dynamic_cast<Controller*>(statesetcontroller))
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visit(node, *ctrl);
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}
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}
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callback = callback->getNestedCallback();
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}
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traverse(node);
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}
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void ControllerVisitor::apply(osg::Geode &geode)
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{
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for (unsigned int i=0; i<geode.getNumDrawables(); ++i)
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{
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osg::Drawable* drw = geode.getDrawable(i);
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#if OSG_MIN_VERSION_REQUIRED(3,3,3)
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osg::Callback* callback = drw->getUpdateCallback();
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#else
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osg::Drawable::UpdateCallback* callback = drw->getUpdateCallback();
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#endif
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if (Controller* ctrl = dynamic_cast<Controller*>(callback))
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visit(geode, *ctrl);
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}
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apply(static_cast<osg::Node&>(geode));
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}
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AssignControllerSourcesVisitor::AssignControllerSourcesVisitor()
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: ControllerVisitor()
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{
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}
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AssignControllerSourcesVisitor::AssignControllerSourcesVisitor(boost::shared_ptr<ControllerSource> toAssign)
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: ControllerVisitor()
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, mToAssign(toAssign)
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{
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}
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void AssignControllerSourcesVisitor::visit(osg::Node&, Controller &ctrl)
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{
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if (!ctrl.getSource())
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ctrl.setSource(mToAssign);
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}
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FindMaxControllerLengthVisitor::FindMaxControllerLengthVisitor()
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: SceneUtil::ControllerVisitor()
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, mMaxLength(0)
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{
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}
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void FindMaxControllerLengthVisitor::visit(osg::Node &, Controller &ctrl)
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{
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if (ctrl.getFunction())
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mMaxLength = std::max(mMaxLength, ctrl.getFunction()->getMaximum());
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}
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float FindMaxControllerLengthVisitor::getMaxLength() const
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{
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return mMaxLength;
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}
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}
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