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auxSceneData.I
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75 lines (68 loc) · 1.87 KB
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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file auxSceneData.I
* @author drose
* @date 2004-09-27
*/
/**
* This is protected, since you normally don't want to create a plain
* AuxSceneData object; instead, create an instance of a derived class that
* actually has some useful data in it.
*/
INLINE AuxSceneData::
AuxSceneData(double duration) :
_duration(duration),
_last_render_time(0.0)
{
}
/**
* Specifies the minimum length in time, in seconds, to keep this AuxSceneData
* object around in the scene graph after the last time it was rendered.
*/
INLINE void AuxSceneData::
set_duration(double duration) {
_duration = duration;
}
/**
* Returns the minimum length in time, in seconds, to keep this AuxSceneData
* object around in the scene graph after the last time it was rendered.
*/
INLINE double AuxSceneData::
get_duration() const {
return _duration;
}
/**
* Should be called with the current frame_time each time the AuxSceneData is
* used during traversal.
*/
INLINE void AuxSceneData::
set_last_render_time(double last_render_time) {
_last_render_time = last_render_time;
}
/**
* Returns the last time this object was used during traversal (according to
* set_last_render_time()).
*/
INLINE double AuxSceneData::
get_last_render_time() const {
return _last_render_time;
}
/**
* Returns the frame_time at which this AuxSceneData object is currently
* scheduled to be removed from the scene graph.
*/
INLINE double AuxSceneData::
get_expiration_time() const {
return _last_render_time + _duration;
}
INLINE std::ostream &
operator << (std::ostream &out, const AuxSceneData &data) {
data.output(out);
return out;
}