Panda3D

animChannelBase.cxx

00001 // Filename: animChannelBase.cxx
00002 // Created by:  drose (19Feb99)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 
00016 #include "animChannelBase.h"
00017 #include "datagram.h"
00018 #include "datagramIterator.h"
00019 #include "bamReader.h"
00020 #include "bamWriter.h"
00021 
00022 TypeHandle AnimChannelBase::_type_handle;
00023 
00024 
00025 ////////////////////////////////////////////////////////////////////
00026 //     Function: AnimChannelBase::has_changed
00027 //       Access: Public, Virtual
00028 //  Description: Returns true if the value has changed since the last
00029 //               call to has_changed().  last_frame is the frame
00030 //               number of the last call; this_frame is the current
00031 //               frame number.  last_frac and this_frac are the
00032 //               fractional steps into those frames, which will be 0.0
00033 //               unless we are running in frame_blend mode.
00034 ////////////////////////////////////////////////////////////////////
00035 bool AnimChannelBase::
00036 has_changed(int, double, int, double) {
00037   return true;
00038 }
00039 
00040 ////////////////////////////////////////////////////////////////////
00041 //     Function: AnimChannelBase::write_datagram
00042 //       Access: Public
00043 //  Description: Function to write the important information in
00044 //               the particular object to a Datagram
00045 ////////////////////////////////////////////////////////////////////
00046 void AnimChannelBase::
00047 write_datagram(BamWriter *manager, Datagram &me) {
00048   AnimGroup::write_datagram(manager, me);
00049   me.add_uint16(_last_frame);
00050 }
00051 
00052 ////////////////////////////////////////////////////////////////////
00053 //     Function: AnimChannelBase::fillin
00054 //       Access: Protected
00055 //  Description: Function that reads out of the datagram (or asks
00056 //               manager to read) all of the data that is needed to
00057 //               re-create this object and stores it in the appropiate
00058 //               place
00059 ////////////////////////////////////////////////////////////////////
00060 void AnimChannelBase::
00061 fillin(DatagramIterator &scan, BamReader *manager) {
00062   AnimGroup::fillin(scan, manager);
00063   _last_frame = scan.get_uint16();
00064 }
00065 
00066 
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