| 53 | } |
| 54 | |
| 55 | void Timer::update(float dt) { |
| 56 | if (_elapsed == -1) { |
| 57 | _elapsed = 0; |
| 58 | _timesExecuted = 0; |
| 59 | return; |
| 60 | } |
| 61 | |
| 62 | // accumulate elapsed time |
| 63 | _elapsed += dt; |
| 64 | |
| 65 | // deal with delay |
| 66 | if (_useDelay) { |
| 67 | if (_elapsed < _delay) { |
| 68 | return; |
| 69 | } |
| 70 | trigger(_delay); |
| 71 | _elapsed = _elapsed - _delay; |
| 72 | _timesExecuted += 1; |
| 73 | _useDelay = false; |
| 74 | // after delay, the rest time should compare with interval |
| 75 | if (!_runForever && _timesExecuted > _repeat) { //unschedule timer |
| 76 | cancel(); |
| 77 | return; |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | // if _interval == 0, should trigger once every frame |
| 82 | float interval = (_interval > 0) ? _interval : _elapsed; |
| 83 | while (_elapsed >= interval) { |
| 84 | trigger(interval); |
| 85 | _elapsed -= interval; |
| 86 | _timesExecuted += 1; |
| 87 | |
| 88 | if (!_runForever && _timesExecuted > _repeat) { |
| 89 | cancel(); |
| 90 | break; |
| 91 | } |
| 92 | |
| 93 | if (_elapsed <= 0.F) { |
| 94 | break; |
| 95 | } |
| 96 | |
| 97 | if (_scheduler->isCurrentTargetSalvaged()) { |
| 98 | break; |
| 99 | } |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | // TimerTargetCallback |
| 104 | |