97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/**
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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 animChannelScalarDynamic.h
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* @author drose
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* @date 2003-10-20
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*/
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#ifndef ANIMCHANNELSCALARDYNAMIC_H
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#define ANIMCHANNELSCALARDYNAMIC_H
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#include "pandabase.h"
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#include "animChannel.h"
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class PandaNode;
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class TransformState;
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/**
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* An animation channel that accepts a scalar each frame from some dynamic
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* input provided by code.
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*
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* This object operates in two modes: in explicit mode, the programmer should
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* call set_value() each frame to indicate the new value; in implicit mode,
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* the programmer should call set_value_node() to indicate the node whose X
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* component will be copied to the scalar each frame.
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*/
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class EXPCL_PANDA_CHAN AnimChannelScalarDynamic : public AnimChannelScalar {
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protected:
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AnimChannelScalarDynamic();
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AnimChannelScalarDynamic(AnimGroup *parent, const AnimChannelScalarDynamic ©);
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public:
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AnimChannelScalarDynamic(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 void get_value(int frame, PN_stdfloat &value);
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INLINE PN_stdfloat get_value() const;
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INLINE PandaNode *get_value_node() const;
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PUBLISHED:
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void set_value(PN_stdfloat value);
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void set_value_node(PandaNode *node);
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MAKE_PROPERTY(value, get_value, set_value);
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MAKE_PROPERTY(value_node, get_value_node, set_value_node);
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protected:
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virtual AnimGroup *make_copy(AnimGroup *parent) const;
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private:
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// This is filled in only if we are using the set_value_node() interface to
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// get an implicit value from the transform on the indicated node each
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// frame.
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PT(PandaNode) _value_node;
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CPT(TransformState) _value;
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CPT(TransformState) _last_value;
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// This is used only if we are using the explicit set_value() interface.
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bool _value_changed;
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PN_stdfloat _float_value;
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
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void fillin(DatagramIterator &scan, BamReader *manager);
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static TypedWritable *make_AnimChannelScalarDynamic(const FactoryParams ¶ms);
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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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AnimChannelScalar::init_type();
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register_type(_type_handle, "AnimChannelScalarDynamic",
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AnimChannelScalar::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 "animChannelScalarDynamic.I"
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#endif
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