71 lines
2 KiB
C
71 lines
2 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 animChannelFixed.h
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* @author drose
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* @date 1999-02-24
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*/
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#ifndef ANIMCHANNELFIXED_H
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#define ANIMCHANNELFIXED_H
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#include "pandabase.h"
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#include "animChannel.h"
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/**
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* This template class is a special kind of AnimChannel that always returns
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* just one fixed value. It is a special channel, in that it need not be
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* assigned within a hierarchy. It may stand alone, so that it may be created
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* on-the-fly for parts that need default anims to bind against.
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*/
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template<class SwitchType>
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class AnimChannelFixed : public AnimChannel<SwitchType> {
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public:
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typedef typename AnimChannel<SwitchType>::ValueType ValueType;
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protected:
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INLINE AnimChannelFixed(AnimGroup *parent, const AnimChannelFixed<SwitchType> ©);
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public:
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INLINE AnimChannelFixed(const std::string &name, const ValueType &value);
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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 void get_value(int frame, ValueType &value);
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virtual void output(std::ostream &out) const;
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ValueType _value;
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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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AnimChannel<SwitchType>::init_type();
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register_type(_type_handle, SwitchType::get_fixed_channel_type_name(),
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AnimChannel<SwitchType>::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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EXPORT_TEMPLATE_CLASS(EXPCL_PANDA_CHAN, EXPTP_PANDA_CHAN, AnimChannelFixed<ACMatrixSwitchType>);
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EXPORT_TEMPLATE_CLASS(EXPCL_PANDA_CHAN, EXPTP_PANDA_CHAN, AnimChannelFixed<ACScalarSwitchType>);
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#include "animChannelFixed.I"
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#endif
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