79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
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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 animChannelBase.h
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* @author drose
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* @date 1999-02-19
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*/
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#ifndef ANIMCHANNELBASE_H
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#define ANIMCHANNELBASE_H
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#include "pandabase.h"
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#include "animGroup.h"
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#include "animControl.h"
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#include "pointerTo.h"
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/**
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* Parent class for all animation channels. An AnimChannel is an arbitrary
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* function that changes over time (actually, over frames), usually defined by
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* a table read from an egg file (but possibly computed or generated in any
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* other way).
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*/
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class EXPCL_PANDA_CHAN AnimChannelBase : public AnimGroup {
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protected:
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// The default constructor is protected: don't try to create an AnimChannel
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// without a parent. To create an AnimChannel hierarchy, you must first
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// create an AnimBundle, and use that to create any subsequent children.
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INLINE AnimChannelBase(const std::string &name = "");
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INLINE AnimChannelBase(AnimGroup *parent, const AnimChannelBase ©);
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public:
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INLINE AnimChannelBase(AnimGroup *parent, const std::string &name);
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virtual bool has_changed(int last_frame, double last_frac,
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int this_frame, double this_frac);
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virtual TypeHandle get_value_type() const=0;
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protected:
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int _last_frame;
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public:
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virtual void write_datagram(BamWriter* manager, Datagram &me);
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protected:
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void fillin(DatagramIterator& scan, BamReader* manager);
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PUBLISHED:
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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public:
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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AnimGroup::init_type();
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register_type(_type_handle, "AnimChannelBase",
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AnimGroup::get_class_type());
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}
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private:
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static TypeHandle _type_handle;
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};
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#include "animChannelBase.I"
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#endif
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