private void updateClock() { if (parentGameplayClock == null) { setClock(); // LoadComplete may not be run yet, but we still want the clock. } validState = true; requireMoreUpdateLoops = false; var newProposedTime = parentGameplayClock.CurrentTime; try { if (FrameStablePlayback) { if (firstConsumption) { // On the first update, frame-stability seeking would result in unexpected/unwanted behaviour. // Instead we perform an initial seek to the proposed time. // process frame (in addition to finally clause) to clear out ElapsedTime manualClock.CurrentTime = newProposedTime; framedClock.ProcessFrame(); firstConsumption = false; } else if (manualClock.CurrentTime < gameplayStartTime) { manualClock.CurrentTime = newProposedTime = Math.Min(gameplayStartTime, newProposedTime); } else if (Math.Abs(manualClock.CurrentTime - newProposedTime) > sixty_frame_time * 1.2f) { newProposedTime = newProposedTime > manualClock.CurrentTime ? Math.Min(newProposedTime, manualClock.CurrentTime + sixty_frame_time) : Math.Max(newProposedTime, manualClock.CurrentTime - sixty_frame_time); } } if (isAttached) { double?newTime; if (FrameStablePlayback) { // when stability is turned on, we shouldn't execute for time values the replay is unable to satisfy. if ((newTime = ReplayInputHandler.SetFrameFromTime(newProposedTime)) == null) { // setting invalid state here ensures that gameplay will not continue (ie. our child // hierarchy won't be updated). validState = false; // potentially loop to catch-up playback. requireMoreUpdateLoops = true; return; } } else { // when stability is disabled, we don't really care about accuracy. // looping over the replay will allow it to catch up and feed out the required values // for the current time. while ((newTime = ReplayInputHandler.SetFrameFromTime(newProposedTime)) != newProposedTime) { if (newTime == null) { // special case for when the replay actually can't arrive at the required time. // protects from potential endless loop. validState = false; return; } } } newProposedTime = newTime.Value; } } finally { if (newProposedTime != manualClock.CurrentTime) { direction = newProposedTime > manualClock.CurrentTime ? 1 : -1; } manualClock.CurrentTime = newProposedTime; manualClock.Rate = Math.Abs(parentGameplayClock.Rate) * direction; manualClock.IsRunning = parentGameplayClock.IsRunning; requireMoreUpdateLoops |= manualClock.CurrentTime != parentGameplayClock.CurrentTime; // The manual clock time has changed in the above code. The framed clock now needs to be updated // to ensure that the its time is valid for our children before input is processed framedClock.ProcessFrame(); } }
private void updateClock() { if (parentGameplayClock == null) { setClock(); // LoadComplete may not be run yet, but we still want the clock. } validState = true; manualClock.Rate = parentGameplayClock.Rate; manualClock.IsRunning = parentGameplayClock.IsRunning; var newProposedTime = parentGameplayClock.CurrentTime; try { if (firstConsumption) { // On the first update, frame-stability seeking would result in unexpected/unwanted behaviour. // Instead we perform an initial seek to the proposed time. manualClock.CurrentTime = newProposedTime; // do a second process to clear out ElapsedTime framedClock.ProcessFrame(); firstConsumption = false; } else if (manualClock.CurrentTime < gameplayStartTime) { manualClock.CurrentTime = newProposedTime = Math.Min(gameplayStartTime, newProposedTime); } else if (Math.Abs(manualClock.CurrentTime - newProposedTime) > sixty_frame_time * 1.2f) { newProposedTime = newProposedTime > manualClock.CurrentTime ? Math.Min(newProposedTime, manualClock.CurrentTime + sixty_frame_time) : Math.Max(newProposedTime, manualClock.CurrentTime - sixty_frame_time); } if (!isAttached) { manualClock.CurrentTime = newProposedTime; } else { double?newTime = ReplayInputHandler.SetFrameFromTime(newProposedTime); if (newTime == null) { // we shouldn't execute for this time value. probably waiting on more replay data. validState = false; requireMoreUpdateLoops = true; manualClock.CurrentTime = newProposedTime; return; } manualClock.CurrentTime = newTime.Value; } requireMoreUpdateLoops = manualClock.CurrentTime != parentGameplayClock.CurrentTime; } finally { // The manual clock time has changed in the above code. The framed clock now needs to be updated // to ensure that the its time is valid for our children before input is processed framedClock.ProcessFrame(); } }