/// <summary>
/// Adds a frame with a certain texture and duration.
/// </summary>
public void AddFrame(int frameId, Texture texture, float duration = -1f)
{
if (frameId < 0 || frameId > NumFrames)
{
throw new ArgumentException("Invalid frame id");
}
if (duration < 0)
{
duration = _defaultFrameDuration;
}
MovieClipFrame frame = new MovieClipFrame(texture, duration);
//frame.sound = sound;
_frames.Insert(frameId, frame);
if (frameId == NumFrames)
{
float prevStartTime = frameId > 0 ? _frames[frameId - 1].StartTime : 0.0f;
float prevDuration = frameId > 0 ? _frames[frameId - 1].Duration : 0.0f;
frame.StartTime = prevStartTime + prevDuration;
}
else
{
UpdateStartTimes();
}
}
// helpers
private void UpdateStartTimes()
{
int numFrames = NumFrames;
MovieClipFrame prevFrame = _frames[0];
prevFrame.StartTime = 0;
for (int i = 1; i < numFrames; ++i)
{
_frames[i].StartTime = prevFrame.StartTime + prevFrame.Duration;
prevFrame = _frames[i];
}
}
// IAnimatable
public void AdvanceTime(float passedTime)
{
if (!_playing)
{
return;
}
// The tricky part in this method is that whenever a callback is executed
// (a frame action or a 'COMPLETE' event handler), that callback might modify the clip.
// Thus, we have to start over with the remaining time whenever that happens.
MovieClipFrame frame = _frames[_currentFrameId];
if (_wasStopped)
{
// if the clip was stopped and started again,
// sound and action of this frame need to be repeated.
_wasStopped = false;
//frame.playSound(_soundTransform);
/*
* if (frame.action != null)
* {
* frame.executeAction(this, _currentFrameID);
* advanceTime(passedTime);
* return;
* }*/
}
if (_currentTime == TotalTime)
{
if (Loop)
{
_currentTime = 0.0f;
_currentFrameId = 0;
frame = _frames[0];
//frame.playSound(_soundTransform);
Texture = frame.Texture;
/*
* if (frame.action != null)
* {
* frame.executeAction(this, _currentFrameID);
* advanceTime(passedTime);
* return;
* }*/
}
else
{
return;
}
}
int finalFrameId = _frames.Count - 1;
float restTimeInFrame = frame.Duration - _currentTime + frame.StartTime;
bool dispatchCompleteEvent = false;
//Function frameAction = null;
int previousFrameId = _currentFrameId;
//bool changedFrame;
while (passedTime >= restTimeInFrame)
{
//changedFrame = false;
passedTime -= restTimeInFrame;
_currentTime = frame.StartTime + frame.Duration;
if (_currentFrameId == finalFrameId)
{
if (OnComplete != null)
{
dispatchCompleteEvent = true;
}
else if (Loop)
{
_currentTime = 0;
_currentFrameId = 0;
//changedFrame = true;
}
else
{
return;
}
}
else
{
_currentFrameId += 1;
//changedFrame = true;
}
frame = _frames[_currentFrameId];
//frameAction = frame.action;
//if (changedFrame)
// frame.playSound(_soundTransform);
if (dispatchCompleteEvent)
{
Texture = frame.Texture;
OnComplete();
AdvanceTime(passedTime);
return;
}
/*else if (frameAction != null)
* {
* texture = frame.texture;
* frame.executeAction(this, _currentFrameID);
* advanceTime(passedTime);
* return;
* }*/
restTimeInFrame = frame.Duration;
// prevent a mean floating point problem (issue #851)
if (passedTime + 0.0001f > restTimeInFrame && passedTime - 0.0001f < restTimeInFrame)
{
passedTime = restTimeInFrame;
}
}
if (previousFrameId != _currentFrameId)
{
Texture = _frames[_currentFrameId].Texture;
}
_currentTime += passedTime;
}
