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();
}
}