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cLerpInterval.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file cLerpInterval.h
10 * @author drose
11 * @date 2002-08-27
12 */
13
14#ifndef CLERPINTERVAL_H
15#define CLERPINTERVAL_H
16
17#include "directbase.h"
18#include "cInterval.h"
19
20/**
21 * The base class for a family of intervals that linearly interpolate one or
22 * more numeric values over time.
23 */
24class EXPCL_DIRECT_INTERVAL CLerpInterval : public CInterval {
25PUBLISHED:
26 enum BlendType {
27 BT_no_blend,
28 BT_ease_in,
29 BT_ease_out,
30 BT_ease_in_out,
31 BT_invalid
32 };
33
34public:
35 INLINE CLerpInterval(const std::string &name, double duration,
36 BlendType blend_type);
37
38PUBLISHED:
39 INLINE BlendType get_blend_type() const;
40
41 static BlendType string_blend_type(const std::string &blend_type);
42
43protected:
44 double compute_delta(double t) const;
45
46private:
47 BlendType _blend_type;
48
49
50public:
51 static TypeHandle get_class_type() {
52 return _type_handle;
53 }
54 static void init_type() {
55 CInterval::init_type();
56 register_type(_type_handle, "CLerpInterval",
57 CInterval::get_class_type());
58 }
59 virtual TypeHandle get_type() const {
60 return get_class_type();
61 }
62 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
63
64private:
65 static TypeHandle _type_handle;
66};
67
68#include "cLerpInterval.I"
69
70#endif
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
The base class for timeline components.
Definition cInterval.h:36
The base class for a family of intervals that linearly interpolate one or more numeric values over ti...
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...