1 | // SuperTux |
---|---|
2 | // Copyright (C) 2006 Matthias Braun <matze@braunis.de> |
3 | // |
4 | // This program is free software: you can redistribute it and/or modify |
5 | // it under the terms of the GNU General Public License as published by |
6 | // the Free Software Foundation, either version 3 of the License, or |
7 | // (at your option) any later version. |
8 | // |
9 | // This program is distributed in the hope that it will be useful, |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | // GNU General Public License for more details. |
13 | // |
14 | // You should have received a copy of the GNU General Public License |
15 | // along with this program. If not, see <http://www.gnu.org/licenses/>. |
16 | |
17 | #include <math.h> |
18 | |
19 | #include "supertux/timer.hpp" |
20 | |
21 | Timer::Timer() : |
22 | m_period(0), |
23 | m_cycle_start(0), |
24 | m_cyclic(false) |
25 | { |
26 | } |
27 | |
28 | void |
29 | Timer::start(float period, bool cyclic) |
30 | { |
31 | m_period = period; |
32 | m_cyclic = cyclic; |
33 | m_cycle_start = g_game_time; |
34 | } |
35 | |
36 | bool |
37 | Timer::check() |
38 | { |
39 | if (m_period == 0) |
40 | return false; |
41 | |
42 | if (g_game_time - m_cycle_start >= m_period) { |
43 | if (m_cyclic) { |
44 | m_cycle_start = g_game_time - fmodf(g_game_time - m_cycle_start, m_period); |
45 | } else { |
46 | m_period = 0; |
47 | } |
48 | return true; |
49 | } |
50 | |
51 | return false; |
52 | } |
53 | |
54 | /* EOF */ |
55 |