1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#include "time.hpp"
#include <SDL/SDL.h>
#define SDL_CORRECTION_RATIO 1000
namespace usdx
{
Time::Time(void)
{
}
float Time::get_time()
{
return SDL_GetTicks() / SDL_CORRECTION_RATIO;
}
/*
* RelativeTimer
*/
/*
* creates a new timer.
* if triggermode is false (default), the timer
* will immediately begin with counting.
* if triggermode is true, it will wait until get/settime() or pause() is called
* for the first time.
*/
RelativeTimer::RelativeTimer(bool trigger_mode)
{
this->trigger_mode = trigger_mode;
reset();
this->paused = false;
}
void RelativeTimer::pause(void)
{
relative_time_offset = get_time();
paused = true;
}
void RelativeTimer::resume(void)
{
absolute_time = SDL_GetTicks();
paused = false;
}
/*
* Returns the counter of the timer.
* If in TriggerMode it will return 0 and start the counter on the first call.
*/
float RelativeTimer::get_time(void)
{
// initialize absolute time on first call in triggered mode
if (trigger_mode && (absolute_time == 0))
{
absolute_time = SDL_GetTicks();
return relative_time_offset;
}
if (paused)
return relative_time_offset;
return relative_time_offset + (SDL_GetTicks() - absolute_time) / SDL_CORRECTION_RATIO;
}
/*
* Returns the counter of the timer and resets the counter to 0 afterwards.
* Note: In TriggerMode the counter will not be stopped as with Reset().
*/
float RelativeTimer::get_and_reset_time(void)
{
float result = get_time();
set_time(0);
return result;
}
/*
* Sets the timer to the given time. This will trigger in TriggerMode if
* Trigger is set to true. Otherwise the counter's state will not change.
*/
void RelativeTimer::set_time(float time, bool trigger)
{
relative_time_offset = time;
if (!trigger_mode || trigger)
absolute_time = SDL_GetTicks();
}
/*
* Resets the counter of the timer to 0.
* If in TriggerMode the timer will not start counting until it is triggered again.
*/
void RelativeTimer::reset(void)
{
relative_time_offset = 0;
if (trigger_mode)
absolute_time = 0;
else
absolute_time = SDL_GetTicks();
}
}
|
