100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
// Filename: eggSwitchCondition.h
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// Created by: drose (08Feb99)
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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) 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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////////////////////////////////////////////////////////////////////
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#ifndef EGGSWITCHCONDITION
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#define EGGSWITCHCONDITION
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#include "pandabase.h"
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#include "eggObject.h"
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#include "luse.h"
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////////////////////////////////////////////////////////////////////
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// Class : EggSwitchCondition
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// Description : This corresponds to a <SwitchCondition> entry within
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// a group. It indicates the condition at which a
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// level-of-detail is switched in or out. This is
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// actually an abstract base class for potentially any
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// number of specific different kinds of switching
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// conditions; presently, only a <Distance> type is
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// actually supported.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDAEGG EggSwitchCondition : public EggObject {
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PUBLISHED:
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virtual EggSwitchCondition *make_copy() const=0;
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virtual void write(ostream &out, int indent_level) const=0;
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virtual void transform(const LMatrix4d &mat)=0;
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public:
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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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EggObject::init_type();
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register_type(_type_handle, "EggSwitchCondition",
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EggObject::get_class_type());
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}
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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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private:
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static TypeHandle _type_handle;
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};
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////////////////////////////////////////////////////////////////////
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// Class : EggSwitchConditionDistance
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// Description : A SwitchCondition that switches the levels-of-detail
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// based on distance from the camera's eyepoint.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDAEGG EggSwitchConditionDistance : public EggSwitchCondition {
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PUBLISHED:
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EggSwitchConditionDistance(double switch_in, double switch_out,
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const LPoint3d ¢er, double fade = 0.0);
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virtual EggSwitchCondition *make_copy() const;
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virtual void write(ostream &out, int indent_level) const;
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virtual void transform(const LMatrix4d &mat);
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public:
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double _switch_in, _switch_out, _fade;
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LPoint3d _center;
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public:
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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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EggSwitchCondition::init_type();
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register_type(_type_handle, "EggSwitchConditionDistance",
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EggSwitchCondition::get_class_type());
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}
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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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private:
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static TypeHandle _type_handle;
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};
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#endif
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