138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
// Filename: animChannel.h
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// Created by: drose (22Feb99)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef ANIMCHANNEL_H
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#define ANIMCHANNEL_H
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#include "pandabase.h"
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#include "animChannelBase.h"
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#include "lmatrix.h"
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////////////////////////////////////////////////////////////////////
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// Class : AnimChannel
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// Description : This template class is the parent class for all kinds
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// of AnimChannels that return different values.
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////////////////////////////////////////////////////////////////////
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template<class SwitchType>
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class AnimChannel : public AnimChannelBase {
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protected:
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// The default constructor is protected: don't try to create an
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// AnimChannel without a parent. To create an AnimChannel hierarchy,
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// you must first create an AnimBundle, and use that to create any
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// subsequent children.
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INLINE AnimChannel(const string &name = "");
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public:
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typedef TYPENAME SwitchType::ValueType ValueType;
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INLINE AnimChannel(AnimGroup *parent, const string &name);
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PUBLISHED:
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virtual void get_value(int frame, ValueType &value)=0;
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// These two functions only have meaning for matrix types.
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virtual void get_value_no_scale(int frame, ValueType &value);
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virtual void get_scale(int frame, float scale[3]);
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// The second parameter above should really by LVector3f instead of
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// float[3], but there seems to be a compiler bug in EGCS that
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// doesn't like that. So we have this kludge for now.
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virtual TypeHandle get_value_type() const;
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//This class has no Read/Write functions as it is abstract
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//and defines no new data
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public:
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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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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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AnimChannelBase::init_type();
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register_type(_type_handle, SwitchType::get_channel_type_name(),
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AnimChannelBase::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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// And now we instantiate a few useful types.
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class EXPCL_PANDA ACMatrixSwitchType {
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public:
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typedef LMatrix4f ValueType;
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static const char *get_channel_type_name() { return "AnimChannelMatrix"; }
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static const char *get_fixed_channel_type_name() { return "AnimChannelMatrixFixed"; }
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static const char *get_part_type_name() { return "MovingPart<LMatrix4f>"; }
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static void output_value(ostream &out, const ValueType &value);
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static void write_datagram(Datagram &dest, ValueType& me)
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{
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me.write_datagram(dest);
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}
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static void read_datagram(DatagramIterator &source, ValueType& me)
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{
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me.read_datagram(source);
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}
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};
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EXPORT_TEMPLATE_CLASS(EXPCL_PANDA, EXPTP_PANDA, AnimChannel<ACMatrixSwitchType>);
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typedef AnimChannel<ACMatrixSwitchType> AnimChannelMatrix;
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class EXPCL_PANDA ACScalarSwitchType {
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public:
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typedef float ValueType;
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static const char *get_channel_type_name() { return "AnimChannelScalar"; }
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static const char *get_fixed_channel_type_name() { return "AnimChannelScalarFixed"; }
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static const char *get_part_type_name() { return "MovingPart<float>"; }
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static void output_value(ostream &out, ValueType value) {
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out << value;
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}
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static void write_datagram(Datagram &dest, ValueType& me)
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{
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dest.add_float32(me);
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}
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static void read_datagram(DatagramIterator &source, ValueType& me)
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{
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me = source.get_float32();
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}
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};
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EXPORT_TEMPLATE_CLASS(EXPCL_PANDA, EXPTP_PANDA, AnimChannel<ACScalarSwitchType>);
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typedef AnimChannel<ACScalarSwitchType> AnimChannelScalar;
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#include "animChannel.I"
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// Tell GCC that we'll take care of the instantiation explicitly here.
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#ifdef __GNUC__
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#pragma interface
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#endif
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#endif
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