claw 1.9.0
 
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single_tweener.hpp
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1/*
2 CLAW - a C++ Library Absolutely Wonderful
3
4 CLAW is a free library without any particular aim but being useful to
5 anyone.
6
7 Copyright (C) 2005-2011 Julien Jorge
8
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public
20 License along with this library; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 contact: julien.jorge@stuff-o-matic.com
23*/
30#ifndef __CLAW_TWEEN_SINGLE_TWEENER_HPP__
31#define __CLAW_TWEEN_SINGLE_TWEENER_HPP__
32
35
36#include <functional>
37
38namespace claw
39{
40 namespace tween
41 {
49 {
50 public:
53 typedef std::function<void(double)> update_function;
54
56 typedef std::function<double(double)> easing_function;
57
58 public:
60 single_tweener(double init, double end, double duration,
62 single_tweener(double& val, double end, double duration,
64
65 double get_init() const;
66 void set_init(double v);
67
68 double get_end() const;
69 void set_end(double v);
70
71 double get_duration() const;
72 void set_duration(double v);
73
76
77 double get_value() const;
78
79 private:
80 single_tweener* do_clone() const;
81 bool do_is_finished() const;
82 double do_update(double dt);
83
84 private:
86 double m_init;
87
89 double m_end;
90
92 double m_date;
93
95 double m_duration;
96
98 update_function m_callback;
99
101 easing_function m_easing;
102
103 }; // class single_tweener
104
105 }
106}
107
108#endif // __CLAW_TWEEN_SINGLE_TWEENER_HPP__
Common interface for all tweeners.
Common interface for all tweeners.
void set_duration(double v)
Sets the total duration.
double get_end() const
Gets the final value.
void set_end(double v)
Sets the final value.
single_tweener()
Default constructor.
void set_easing(easing_function f)
The function used to compute the new value.
std::function< double(double)> easing_function
The type of the function used to compute the new value.
double get_init() const
Gets the initial value.
void set_init(double v)
Sets the initial value.
double get_duration() const
Gets the total duration.
void set_callback(update_function f)
The function called when the single_tweener is updated.
double get_value() const
Gets the current value of the tweener.
std::function< void(double)> update_function
The type of the function called when the single_tweener is updated.
Easing functions for the tweener. Those functions do nothing.
Tweeners interpolate the intermediate values between two given reference values using various equatio...
Definition claw.hpp:96
This is the main namespace.