Comments (2)
Timer#stop
does indeed not work as I'd expect it to. While it blocks the current task from completing (and thus from repeating as well), the time passed still counts toward its delay. To test this, just start the example below, immediately press S
to stop the timer, count to 5 and then press S
again to start the timer.
Expectation: the task is executed 10 seconds later.
Reality: the timer is executed 5 seconds later, because the 5 seconds while the timer was stopped were still applied towards the task's delay.
However, pausing via Timer#delay
works fine. To test this, start the example, press P
to pause, count to 5 and then unpause via P
again. As expected, the task is executed 10 seconds later.
public class Issue7281Test extends ApplicationAdapter {
private int i = 0;
private boolean timerStopped = false;
private boolean timerPaused = false;
private float timePassed;
public static void main (String[] argv) {
Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
config.setWindowedMode(1024, 720);
new Lwjgl3Application(new Issue7281Test(), config);
}
@Override
public void create () {
Timer.schedule(new Timer.Task() {
@Override
public void run () {
Gdx.app.log(String.valueOf(timePassed), "Task " + ++i + " completed!");
}
}, 10F, 10F, 9);
}
@Override
public void render () {
ScreenUtils.clear(timerPaused ? Color.GRAY : (timerStopped ? Color.RED : Color.GREEN));
timePassed += Gdx.graphics.getDeltaTime();
if(timerPaused)
Timer.instance().delay(Math.round(Gdx.graphics.getDeltaTime() * 1000));
if(Gdx.input.isKeyJustPressed(Input.Keys.S)) { // Start/stop
if(timerStopped)
Timer.instance().start();
else
Timer.instance().stop();
timerStopped = !timerStopped;
} else if (Gdx.input.isKeyJustPressed(Input.Keys.P)) { // Pause
timerPaused = !timerPaused;
} else if (Gdx.input.isKeyJustPressed(Input.Keys.D)) { // Delay
Timer.instance().delay(2000);
}
}
}
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@dkoding mentions pausing a timer (which only has start/stop, not pause) and gives unexecutable code (which doesn't call start/stop), so there's nothing to be done there.
@crykn thanks for the executable repro! I'll make a PR.
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