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source: code/branches/input/src/orxonox/tools/Timer.h @ 1520

Last change on this file since 1520 was 1505, checked in by rgrieder, 16 years ago

f* svn: It doesn't even inform you if you attempt to set a non existing property. It is svn:eol-style and not eol-style when using the command by the way…

  • Property svn:eol-style set to native
File size: 7.2 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Fabian 'x3n' Landau
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/*!
30    @file Timer.h
31    @brief Definition and Implementation of the Timer class.
32
33    The Timer is a callback-object, calling a given function after a given time-interval.
34
35    Usage:
36    header.h:
37        class ClassName
38        {
39            public:
40                ClassName();
41                void functionName();
42                Timer<ClassName> myTimer;
43        };
44
45    source.cc:
46        include "core/Executor.h"
47
48        ClassName::ClassName()
49        {
50            myTimer.setTimer(interval_in_seconds, bLoop, this, createExecutor(createFunctor(&ClassName::functionName)));
51        }
52
53        void ClassName::functionName()
54        {
55            whateveryouwant();
56            something(else);
57        }
58*/
59
60#ifndef _Timer_H__
61#define _Timer_H__
62
63#include "OrxonoxPrereqs.h"
64#include "core/CorePrereqs.h"
65#include "core/Tickable.h"
66
67namespace orxonox
68{
69    class StaticTimer;
70    void delay(float delay, const std::string& command);
71    void killdelays();
72    void executeDelayedCommand(StaticTimer* timer, const std::string& command);
73
74    //! TimerBase is the parent of the Timer class.
75    class _OrxonoxExport TimerBase : public Tickable
76    {
77        public:
78            ~TimerBase();
79
80            void run() const;
81
82            /** @brief Starts the Timer: Function-call after 'interval' seconds. */
83            inline void startTimer()
84                { this->bActive_ = true; this->time_ = this->interval_; }
85            /** @brief Stops the Timer. */
86            inline void stopTimer()
87                { this->bActive_ = false; this->time_ = this->interval_; }
88            /** @brief Pauses the Timer - it will continue with the actual state if you unpause it. */
89            inline void pauseTimer()
90                { this->bActive_ = false; }
91            /** @brief Unpauses the Timer - continues with the given state. */
92            inline void unpauseTimer()
93                { this->bActive_ = true; }
94            /** @brief Returns true if the Timer is active (= not stoped, not paused). @return True = Time is active */
95            inline bool isActive() const
96                { return this->bActive_; }
97            /** @brief Gives the Timer some extra time. @param time The amount of extra time in seconds */
98            inline void addTime(float time)
99                { this->time_ += time; }
100            /** @brief Decreases the remaining time of the Timer. @param time The amount of time to remove */
101            inline void removeTime(float time)
102                { this->time_ -= time; }
103            /** @brief Sets the interval of the Timer. @param interval The interval */
104            inline void setInterval(float interval)
105                { this->interval_ = interval; }
106            /** @brief Sets bLoop to a given value. @param bLoop True = loop */
107            inline void setLoop(bool bLoop)
108                { this->bLoop_ = bLoop; }
109
110            void tick(float dt);
111
112        protected:
113            TimerBase();
114
115            Executor* executor_; //!< The executor of the function that should be called when the time expires
116
117            float interval_;     //!< The time-interval in seconds
118            bool bLoop_;         //!< If true, the function gets called every 'interval' seconds
119            bool bActive_;       //!< If true, the Timer ticks and calls the function if the time's up
120
121            float time_;         //!< Internal variable, counting the time till the next function-call
122    };
123
124    //! The Timer is a callback-object, calling a given function after a given time-interval.
125    template <class T = BaseObject>
126    class Timer : public TimerBase
127    {
128        public:
129            Timer() {}
130
131            /**
132                @brief Constructor: Initializes the Timer with given values.
133                @param interval The timer-interval in seconds
134                @param bLoop If true, the function gets called every 'interval' seconds
135                @param object The object owning the timer and the function
136                @param exeuctor A executor of the function to call
137            */
138            Timer(float interval, bool bLoop, T* object, ExecutorMember<T>* exeuctor)
139            {
140                this->setTimer(interval, bLoop, object, exeuctor);
141            }
142
143            /**
144                @brief Initializes the Timer with given values.
145                @param interval The timer-interval in seconds
146                @param bLoop If true, the function gets called every 'interval' seconds
147                @param object The object owning the timer and the function
148                @param exeuctor A executor of the function to call
149            */
150            void setTimer(float interval, bool bLoop, T* object, ExecutorMember<T>* executor)
151            {
152                this->interval_ = interval;
153                this->bLoop_ = bLoop;
154                executor->setObject(object);
155                this->executor_ = (Executor*)executor;
156                this->bActive_ = true;
157
158                this->time_ = interval;
159            }
160    };
161
162    //! The StaticTimer is a callback-object, calling a static function after a given time-interval.
163    class StaticTimer : public TimerBase
164    {
165        public:
166            StaticTimer() {}
167
168            /**
169                @brief Constructor: Initializes the Timer with given values.
170                @param interval The timer-interval in seconds
171                @param bLoop If true, the function gets called every 'interval' seconds
172                @param exeuctor A executor of the function to call
173            */
174            StaticTimer(float interval, bool bLoop, ExecutorStatic* executor)
175            {
176                this->setTimer(interval, bLoop, executor);
177            }
178
179            /**
180                @brief Initializes the Timer with given values.
181                @param interval The timer-interval in seconds
182                @param bLoop If true, the function gets called every 'interval' seconds
183                @param object The object owning the timer and the function
184                @param executor A executor of the function to call
185            */
186            void setTimer(float interval, bool bLoop, ExecutorStatic* executor)
187            {
188                this->interval_ = interval;
189                this->bLoop_ = bLoop;
190                this->executor_ = (Executor*)executor;
191                this->bActive_ = true;
192
193                this->time_ = interval;
194            }
195    };
196
197}
198
199#endif /* _Timer_H__ */
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