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