// @
// LOOP
/// <summary>
/// Appends a callback loop (if duration is less than 0, the loop runs
/// infinitely).
/// </summary>
private TeaTime Loop(float duration, Func <float> durationByFunc, Action <ttHandler> callback)
{
// Ignores appends on Immutable mode
if (!_isImmutable)
{
ttTask newTask = new ttTask();
newTask.isLoop = true;
newTask.time = duration;
newTask.timeByFunc = durationByFunc;
newTask.callbackWithHandler = callback;
_tasks.Add(newTask);
}
// Autoplay if not paused or playing
return(_isPaused || _isPlaying ? this : this.Play());
}
// @
// ADD
/// <summary>
/// Appends a new ttTask.
/// </summary>
private TeaTime Add(float timeDelay, Func <float> timeDelayByFunc, Action callback, Action <ttHandler> callbackWithHandler)
{
// Ignores appends on Immutable mode
if (!_isImmutable)
{
ttTask newTask = new ttTask();
newTask.time = timeDelay;
newTask.timeByFunc = timeDelayByFunc;
newTask.callback = callback;
newTask.callbackWithHandler = callbackWithHandler;
_tasks.Add(newTask);
}
// Autoplay if not paused or playing
return(_isPaused || _isPlaying ? this : this.Play());
}
// @
// THE COROUTINE
/// <summary>
/// This is the main algorithm. Executes all tasks, one after the
/// other, calling their callbacks according to type, time and queue
/// config.
/// </summary>
private IEnumerator ExecuteQueue()
{
_isPlaying = true;
int reverseLastTask = -1; // Important: This value needs to be reset to default on most queue changes
_lastPlayExecutedCount = 0;
while (_currentTask < _tasks.Count)
{
// Current task to be executed
int taskId = _currentTask;
if (_isReversed)
{
taskId = _tasks.Count - 1 - _currentTask;
}
ttTask currentTask = _tasks[taskId];
// Next task (or previous if the queue is backward)
_currentTask++;
// Avoid executing a task twice when reversed and the queue
// hasn't reached the end
if (taskId == reverseLastTask)
{
continue;
}
reverseLastTask = taskId;
// Let's wait
// 1 For secuencial Adds or Loops before their first execution
// 2 Maybe a callback is trying to modify his own queue
yield return(ttYield.EndOfFrame);
// It's a loop
if (currentTask.isLoop)
{
// Holds the duration
float loopDuration = currentTask.time;
// Func<float> added
if (currentTask.timeByFunc != null)
{
loopDuration += currentTask.timeByFunc();
}
// Nothing to do, skip
if (loopDuration == 0)
{
continue;
}
// Loops will always need a handler
ttHandler loopHandler = new ttHandler();
loopHandler.self = this;
loopHandler.isLooping = true;
loopHandler.isReversed = _isReversed;
// Negative time means the loop is infinite
bool isInfinite = loopDuration < 0;
// T quotient
float tRate = isInfinite ? 0 : 1 / loopDuration;
// Progresion depends on current direction
if (loopHandler.isReversed)
{
loopHandler.t = 1f;
tRate = -tRate;
}
// While looping and, until time or infinite
while (loopHandler.isLooping && (loopHandler.isReversed ? loopHandler.t >= 0 : loopHandler.t <= 1))
{
// Check for queue reversal
if (_isReversed != loopHandler.isReversed)
{
tRate = -tRate;
loopHandler.isReversed = _isReversed;
}
float unityDeltaTime = Time.deltaTime;
// Completion% from 0 to 1
if (!isInfinite)
{
loopHandler.t += tRate * unityDeltaTime;
}
// On finite loops this .deltaTime is sincronized with
// the exact loop duration
loopHandler.deltaTime =
isInfinite
? unityDeltaTime
: 1 / (loopDuration - loopHandler.timeSinceStart) * unityDeltaTime;
// .deltaTime is also reversed
if (loopHandler.isReversed)
{
loopHandler.deltaTime = -loopHandler.deltaTime;
}
// A classic
loopHandler.timeSinceStart += unityDeltaTime;
// Pause?
while (_isPaused)
{
yield return(null);
}
// Loops will always have a callback with a handler
currentTask.callbackWithHandler(loopHandler);
// Handler .WaitFor(
if (loopHandler.yieldsToWait != null)
{
for (int i = 0, len = loopHandler.yieldsToWait.Count; i < len; i++)
{
yield return(loopHandler.yieldsToWait[i]);
}
loopHandler.yieldsToWait.Clear();
}
// Minimum sane delay
if (loopHandler.yieldsToWait == null)
{
yield return(null);
}
}
// Executed +1
_executedCount += 1;
_lastPlayExecutedCount += 1;
}
// It's a timed callback
else
{
// Holds the delay
float delayDuration = currentTask.time;
// Func<float> added
if (currentTask.timeByFunc != null)
{
delayDuration += currentTask.timeByFunc();
}
// Time delay
if (delayDuration > 0)
{
yield return(ttYield.Seconds(delayDuration));
}
// Pause?
while (_isPaused)
{
yield return(null);
}
// Normal callback
if (currentTask.callback != null)
{
currentTask.callback();
}
// Callback with handler
if (currentTask.callbackWithHandler != null)
{
ttHandler handler = new ttHandler();
handler.self = this;
handler.t = 1;
handler.timeSinceStart = delayDuration;
handler.deltaTime = Time.deltaTime;
currentTask.callbackWithHandler(handler);
// Handler WaitFor
if (handler.yieldsToWait != null)
{
for (int i = 0, len = handler.yieldsToWait.Count; i < len; i++)
{
yield return(handler.yieldsToWait[i]);
}
handler.yieldsToWait.Clear();
}
// Minimum sane delay
if (delayDuration <= 0 && handler.yieldsToWait == null)
{
yield return(null);
}
}
else if (delayDuration <= 0)
{
yield return(null);
}
// Executed +1
_executedCount += 1;
_lastPlayExecutedCount += 1;
}
// Consume mode removes the task after execution #todo Need to
// be tested with .Reverse() stuff
if (_isConsuming)
{
_currentTask -= 1;
_tasks.Remove(currentTask);
reverseLastTask = -1; // To default
}
// On Yoyo mode the queue is reversed at the end, only once per
// play without Repeat mode
if (_isYoyo && _currentTask >= _tasks.Count && (_lastPlayExecutedCount <= _tasks.Count || _isRepeating))
{
this.Reverse();
reverseLastTask = -1; // To default
}
// Repeats on Repeat mode
if (_isRepeating && _tasks.Count > 0 && _currentTask >= _tasks.Count)
{
_currentTask = 0;
reverseLastTask = -1; // To default
}
// Just at the end of a complete queue execution
if (_tasks.Count > 0 && _currentTask >= _tasks.Count)
{
// A new cycle begins
_waiting.Clear();
}
}
// Done!
_isPlaying = false;
yield return(null);
}
// ^
// LOOP
/// <summary>
/// Appends a callback loop (if duration is less than 0,
/// the loop runs infinitely).
/// </summary>
public TeaTime Loop(float duration, Action<ttHandler> callback)
{
// Ignores appends on Wait mode
if (!_isWaiting)
{
ttTask newTask = new ttTask();
newTask.isLoop = true;
newTask.time = duration;
newTask.callbackWithHandler = callback;
_tasks.Add(newTask);
}
// Autoplay if not paused or playing
return _isPaused || _isPlaying ? this : this.Play();
}
// ^
// ADD
/// <summary>
/// Appends a new ttTask.
/// </summary>
private TeaTime Add(float timeDelay, YieldInstruction yi, Action callback, Action<ttHandler> callbackWithHandler)
{
// Ignores appends on Wait mode
if (!_isWaiting)
{
ttTask newTask = new ttTask();
newTask.time = timeDelay;
newTask.yieldInstruction = yi;
newTask.callback = callback;
newTask.callbackWithHandler = callbackWithHandler;
_tasks.Add(newTask);
}
// Autoplay if not paused or playing
return _isPaused || _isPlaying ? this : this.Play();
}
