71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
|
/**
|
||
|
|
* PANDA 3D SOFTWARE
|
||
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
||
|
|
*
|
||
|
|
* All use of this software is subject to the terms of the revised BSD
|
||
|
|
* license. You should have received a copy of this license along
|
||
|
|
* with this source code in a file named "LICENSE."
|
||
|
|
*
|
||
|
|
* @file cLerpInterval.h
|
||
|
|
* @author drose
|
||
|
|
* @date 2002-08-27
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef CLERPINTERVAL_H
|
||
|
|
#define CLERPINTERVAL_H
|
||
|
|
|
||
|
|
#include "directbase.h"
|
||
|
|
#include "cInterval.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The base class for a family of intervals that linearly interpolate one or
|
||
|
|
* more numeric values over time.
|
||
|
|
*/
|
||
|
|
class EXPCL_DIRECT_INTERVAL CLerpInterval : public CInterval {
|
||
|
|
PUBLISHED:
|
||
|
|
enum BlendType {
|
||
|
|
BT_no_blend,
|
||
|
|
BT_ease_in,
|
||
|
|
BT_ease_out,
|
||
|
|
BT_ease_in_out,
|
||
|
|
BT_invalid
|
||
|
|
};
|
||
|
|
|
||
|
|
public:
|
||
|
|
INLINE CLerpInterval(const std::string &name, double duration,
|
||
|
|
BlendType blend_type);
|
||
|
|
|
||
|
|
PUBLISHED:
|
||
|
|
INLINE BlendType get_blend_type() const;
|
||
|
|
|
||
|
|
static BlendType string_blend_type(const std::string &blend_type);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
double compute_delta(double t) const;
|
||
|
|
|
||
|
|
private:
|
||
|
|
BlendType _blend_type;
|
||
|
|
|
||
|
|
|
||
|
|
public:
|
||
|
|
static TypeHandle get_class_type() {
|
||
|
|
return _type_handle;
|
||
|
|
}
|
||
|
|
static void init_type() {
|
||
|
|
CInterval::init_type();
|
||
|
|
register_type(_type_handle, "CLerpInterval",
|
||
|
|
CInterval::get_class_type());
|
||
|
|
}
|
||
|
|
virtual TypeHandle get_type() const {
|
||
|
|
return get_class_type();
|
||
|
|
}
|
||
|
|
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
|
||
|
|
|
||
|
|
private:
|
||
|
|
static TypeHandle _type_handle;
|
||
|
|
};
|
||
|
|
|
||
|
|
#include "cLerpInterval.I"
|
||
|
|
|
||
|
|
#endif
|