/// <summary>
/// Runs the Fiber one frame.
/// Will dispose itself if requested.
/// Returns if still running.
/// </summary>
public bool Update(YieldPhase inYieldUpdate = YieldPhase.None)
{
// We don't support recursive Fiber updates
if (m_Executing)
{
return(true);
}
if (m_StackPosition < 0)
{
return(false);
}
if (m_Disposing || (!m_HostedByManager && !m_Host))
{
Dispose();
return(false);
}
if (inYieldUpdate != YieldPhase.None && m_YieldFrameDelay > 0)
{
--m_YieldFrameDelay;
return(true);
}
if (IsPaused() || m_UnityWait != null)
{
return(true);
}
if (m_YieldPhase != inYieldUpdate)
{
return(true);
}
if (inYieldUpdate != YieldPhase.None)
{
Manager.Fibers.RemoveFiberFromYieldList(this, m_YieldPhase);
m_YieldPhase = YieldPhase.None;
// If we're in a manual update, don't proceed from here
if (m_UpdatePhase == RoutinePhase.Manual)
{
return(true);
}
}
// If we're a chained routine, just accept
// the parent's delta time.
if (!m_Chained)
{
ApplyDeltaTime();
}
else if (inYieldUpdate != YieldPhase.None)
{
m_RootFiber.ApplyDeltaTime();
}
if (m_WaitTime > 0)
{
m_WaitTime -= Manager.Frame.DeltaTime;
if (m_WaitTime > 0)
{
return(true);
}
// We don't modify delta time in the fixed update phase,
// to preserve a consistent delta time within fixed update.
if (m_UpdatePhase != RoutinePhase.FixedUpdate && inYieldUpdate != YieldPhase.WaitForFixedUpdate)
{
Manager.Frame.DeltaTime += m_WaitTime;
}
m_WaitTime = 0;
}
bool bExecuteStack = true;
while (bExecuteStack)
{
bExecuteStack = false;
// Set this flag to prevent updating this routine mid-execution
m_Executing = true;
IEnumerator current = m_Stack[m_StackPosition];
bool bMovedNext = false;
if (Manager.HandleExceptions || m_HandleExceptions || (m_Chained && m_RootFiber.m_HandleExceptions))
{
try
{
bMovedNext = current.MoveNext();
}
catch (Exception e)
{
Debug.LogException(e);
Routine.ExceptionHandler exceptionHandler = m_OnException;
if (m_Chained)
{
exceptionHandler = m_RootFiber.m_OnException;
m_RootFiber.m_Disposing = true;
}
if (exceptionHandler != null)
{
exceptionHandler(e);
}
m_Disposing = true;
}
}
else
{
bMovedNext = current.MoveNext();
}
m_Executing = false;
// Don't check for the object being destroyed.
// Destroy won't go into effect until after
// all the Fibers are done processing anyways.
if (m_Disposing)
{
Dispose();
return(false);
}
if (bMovedNext)
{
object result = current.Current;
if (result == null)
{
return(true);
}
IntPtr resultType = result.GetType().TypeHandle.Value;
// Check all the easy-to-identify result types
if (resultType == TYPEHANDLE_INT)
{
m_WaitTime = (int)result;
return(true);
}
if (resultType == TYPEHANDLE_FLOAT)
{
m_WaitTime = (float)result;
return(true);
}
if (resultType == TYPEHANDLE_DOUBLE)
{
m_WaitTime = (float)(double)result;
return(true);
}
if (resultType == TYPEHANDLE_ROUTINE)
{
IEnumerator waitSequence = ((Routine)result).Wait();
if (waitSequence != null)
{
if (m_StackPosition == m_StackSize - 1)
{
Array.Resize(ref m_Stack, m_StackSize *= 2);
}
m_Stack[++m_StackPosition] = waitSequence;
}
return(true);
}
if (resultType == TYPEHANDLE_WWW)
{
// Disable obsolete WWW warning
#pragma warning disable 612, 618
m_UnityWait = Manager.Host.StartCoroutine(UnityWait((WWW)result));
return(true);
// Restore obsolete WWW warning
#pragma warning restore 612, 618
}
if (resultType == TYPEHANDLE_COMMAND)
{
Routine.Command c = (Routine.Command)result;
switch (c)
{
case Routine.Command.Pause:
Pause();
return(true);
case Routine.Command.Stop:
Stop();
Dispose();
return(false);
case Routine.Command.BreakAndResume:
m_Stack[m_StackPosition--] = null;
((IDisposable)current).Dispose();
if (m_StackPosition < 0)
{
Dispose();
return(false);
}
bExecuteStack = true;
break;
case Routine.Command.Continue:
bExecuteStack = true;
break;
}
if (!bExecuteStack)
{
return(true);
}
continue;
}
if (resultType == TYPEHANDLE_DECORATOR)
{
RoutineDecorator decorator = (RoutineDecorator)result;
IEnumerator decoratedEnumerator = decorator.Enumerator;
bExecuteStack = (decorator.Flags & RoutineDecoratorFlag.Inline) != 0;
if (decoratedEnumerator != null)
{
// Check if we need to resize the stack
if (m_StackPosition == m_StackSize - 1)
{
Array.Resize(ref m_Stack, m_StackSize *= 2);
}
m_Stack[++m_StackPosition] = decorator;
CheckForNesting(decoratedEnumerator);
}
if (!bExecuteStack)
{
return(true);
}
continue;
}
// Check for yield timing changes
if (m_UpdatePhase != RoutinePhase.Manual)
{
bool bApplyYieldDelay = !Manager.IsUpdating(RoutinePhase.Manual) && inYieldUpdate == YieldPhase.None;
if (resultType == TYPEHANDLE_ROUTINEPHASE)
{
RoutinePhase phase = (RoutinePhase)result;
switch (phase)
{
case RoutinePhase.FixedUpdate:
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForFixedUpdate);
Manager.Host.WaitForFixedUpdate();
m_YieldPhase = YieldPhase.WaitForFixedUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.FixedUpdate && Manager.IsUpdating(RoutinePhase.FixedUpdate) ? 1 : 0;
return(true);
}
case RoutinePhase.LateUpdate:
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForLateUpdate);
m_YieldPhase = YieldPhase.WaitForLateUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.LateUpdate && Manager.IsUpdating(RoutinePhase.LateUpdate) ? 1 : 0;
return(true);
}
case RoutinePhase.Update:
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForUpdate);
m_YieldPhase = YieldPhase.WaitForUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.Update && Manager.IsUpdating(RoutinePhase.Update) ? 1 : 0;
return(true);
}
case RoutinePhase.CustomUpdate:
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForCustomUpdate);
m_YieldPhase = YieldPhase.WaitForCustomUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.CustomUpdate && Manager.IsUpdating(RoutinePhase.CustomUpdate) ? 1 : 0;
return(true);
}
case RoutinePhase.ThinkUpdate:
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForThinkUpdate);
m_YieldPhase = YieldPhase.WaitForThinkUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.ThinkUpdate && Manager.IsUpdating(RoutinePhase.ThinkUpdate) ? 1 : 0;
return(true);
}
case RoutinePhase.RealtimeUpdate:
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForRealtimeUpdate);
m_YieldPhase = YieldPhase.WaitForRealtimeUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.RealtimeUpdate && Manager.IsUpdating(RoutinePhase.RealtimeUpdate) ? 1 : 0;
return(true);
}
case RoutinePhase.Manual:
default:
{
// Yielding a manual will not do anything
return(true);
}
}
}
if (resultType == TYPEHANDLE_WAITFORENDOFFRAME)
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForEndOfFrame);
m_YieldPhase = YieldPhase.WaitForEndOfFrame;
m_YieldFrameDelay = 0;
return(true);
}
if (resultType == TYPEHANDLE_WAITFORFIXEDUPDATE)
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForFixedUpdate);
Manager.Host.WaitForFixedUpdate();
m_YieldPhase = YieldPhase.WaitForFixedUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.FixedUpdate && Manager.IsUpdating(RoutinePhase.FixedUpdate) ? 1 : 0;
return(true);
}
if (resultType == TYPEHANDLE_WAITFORLATEUPDATE)
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForLateUpdate);
m_YieldPhase = YieldPhase.WaitForLateUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.LateUpdate && Manager.IsUpdating(RoutinePhase.LateUpdate) ? 1 : 0;
return(true);
}
if (resultType == TYPEHANDLE_WAITFORUPDATE)
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForUpdate);
m_YieldPhase = YieldPhase.WaitForUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.Update && Manager.IsUpdating(RoutinePhase.Update) ? 1 : 0;
return(true);
}
if (resultType == TYPEHANDLE_WAITFORCUSTOMUPDATE)
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForCustomUpdate);
m_YieldPhase = YieldPhase.WaitForCustomUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.CustomUpdate && Manager.IsUpdating(RoutinePhase.CustomUpdate) ? 1 : 0;
return(true);
}
if (resultType == TYPEHANDLE_WAITFORTHINKUPDATE)
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForThinkUpdate);
m_YieldPhase = YieldPhase.WaitForThinkUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.ThinkUpdate && Manager.IsUpdating(RoutinePhase.ThinkUpdate) ? 1 : 0;
return(true);
}
if (resultType == TYPEHANDLE_WAITFORREALTIMEUPDATE)
{
Manager.Fibers.AddFiberToYieldList(this, YieldPhase.WaitForRealtimeUpdate);
m_YieldPhase = YieldPhase.WaitForRealtimeUpdate;
m_YieldFrameDelay = bApplyYieldDelay && m_UpdatePhase == RoutinePhase.RealtimeUpdate && Manager.IsUpdating(RoutinePhase.RealtimeUpdate) ? 1 : 0;
return(true);
}
}
if (WAITFORSECONDS_BYPASS && resultType == TYPEHANDLE_WAITFORSECONDS)
{
m_WaitTime = (float)FIELD_WAITFORSECONDS_SECONDS.GetValue(result);
return(true);
}
// Check for the subclassable types
#if SUPPORTS_CUSTOMYIELDINSTRUCTION
CustomYieldInstruction customInstruction = result as CustomYieldInstruction;
if (customInstruction != null)
{
m_UnityWait = Manager.Host.StartCoroutine(UnityWait(customInstruction));
return(true);
}
#endif
YieldInstruction instruction = result as YieldInstruction;
if (instruction != null)
{
m_UnityWait = Manager.Host.StartCoroutine(UnityWait(instruction));
return(true);
}
IFuture future = result as IFuture;
if (future != null)
{
if (!future.IsDone())
{
IEnumerator waitSequence = future.Wait();
if (waitSequence != null)
{
if (m_StackPosition == m_StackSize - 1)
{
Array.Resize(ref m_Stack, m_StackSize *= 2);
}
m_Stack[++m_StackPosition] = waitSequence;
}
}
return(true);
}
IEnumerator enumerator = result as IEnumerator;
if (enumerator != null)
{
// Check if we need to resize the stack
if (m_StackPosition == m_StackSize - 1)
{
Array.Resize(ref m_Stack, m_StackSize *= 2);
}
m_Stack[++m_StackPosition] = enumerator;
CheckForNesting(enumerator);
return(true);
}
}
else
{
bExecuteStack = current is RoutineDecorator && (((RoutineDecorator)current).Flags & RoutineDecoratorFlag.Inline) != 0;
m_Stack[m_StackPosition--] = null;
((IDisposable)current).Dispose();
if (m_StackPosition < 0)
{
Dispose();
return(false);
}
}
}
return(true);
}
