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Add ability to play a section in a MovieClip #298

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Add ability to play a section in a MovieClip #298

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187 changes: 148 additions & 39 deletions starling/src/starling/display/MovieClip.as
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,10 @@ package starling.display
private var mSounds:Vector.<Sound>;
private var mDurations:Vector.<Number>;
private var mStartTimes:Vector.<Number>;

private var mSectionTotalFrame:Number;
private var mSectionStartFrame:Number;
private var mSectionEndFrame:Number;

private var mDefaultFrameDuration:Number;
private var mCurrentTime:Number;
Expand Down Expand Up @@ -83,7 +87,12 @@ package starling.display
mSounds = new Vector.<Sound>(numFrames);
mDurations = new Vector.<Number>(numFrames);
mStartTimes = new Vector.<Number>(numFrames);


// Init section var
mSectionStartFrame=0;
mSectionTotalFrame=0;
mSectionEndFrame=0;

for (var i:int=0; i<numFrames; ++i)
{
mDurations[i] = mDefaultFrameDuration;
Expand Down Expand Up @@ -175,10 +184,19 @@ package starling.display
}

// playback methods

/** Starts playback. Beware that the clip has to be added to a juggler, too! */
public function play():void
public function play(start:int=0,length:uint=0):void
{

mSectionTotalFrame=length;

// Set current start frame
this.sectionStartFrame=start;

// Set currentFrame to startFrame
this.currentFrame=mSectionStartFrame;

mPlaying = true;
}

Expand All @@ -192,7 +210,8 @@ package starling.display
public function stop():void
{
mPlaying = false;
currentFrame = 0;
// currentFrame = 0;
currentFrame = mSectionStartFrame;
}

// helpers
Expand Down Expand Up @@ -221,50 +240,105 @@ package starling.display
var breakAfterFrame:Boolean = false;
var hasCompleteListener:Boolean = hasEventListener(Event.COMPLETE);
var dispatchCompleteEvent:Boolean = false;
var totalTime:Number = this.totalTime;

if (mLoop && mCurrentTime >= totalTime)
{
mCurrentTime = 0.0;
mCurrentFrame = 0;
}

if (mCurrentTime < totalTime)
{
mCurrentTime += passedTime;
finalFrame = mTextures.length - 1;

while (mCurrentTime > mStartTimes[mCurrentFrame] + mDurations[mCurrentFrame])
var totalTime:Number;// = this.totalTime;

// if mSectionTotalFrame >0
if(mSectionTotalFrame>0){

var sectionEndTime:Number=mStartTimes[mSectionEndFrame] + mDurations[mSectionEndFrame];

totalTime = sectionEndTime-mStartTimes[mSectionStartFrame];

if (mLoop && mCurrentTime >= sectionEndTime)
{
mCurrentTime = mStartTimes[int(mSectionStartFrame-1)];
mCurrentFrame = mSectionStartFrame;
}

if (mCurrentTime < sectionEndTime)
{
if (mCurrentFrame == finalFrame)
mCurrentTime += passedTime;
finalFrame = mSectionEndFrame;

while (mCurrentTime > mStartTimes[mCurrentFrame] + mDurations[mCurrentFrame])
{
if (mLoop && !hasCompleteListener)
if (mCurrentFrame == finalFrame)
{
mCurrentTime -= totalTime;
mCurrentFrame = 0;
if (mLoop && !hasCompleteListener)
{
mCurrentTime -= totalTime;
mCurrentFrame = mSectionStartFrame;
}
else
{
breakAfterFrame = true;
restTime = mCurrentTime - totalTime;
dispatchCompleteEvent = hasCompleteListener;
mCurrentFrame = finalFrame;
mCurrentTime = totalTime;
}
}
else
{
breakAfterFrame = true;
restTime = mCurrentTime - totalTime;
dispatchCompleteEvent = hasCompleteListener;
mCurrentFrame = finalFrame;
mCurrentTime = totalTime;
mCurrentFrame++;
}

var sound:Sound = mSounds[mCurrentFrame];
if (sound) sound.play();
if (breakAfterFrame) break;
}
else

// special case when we reach *exactly* the total time.
if (mCurrentFrame == finalFrame && mCurrentTime == sectionEndTime)
dispatchCompleteEvent = hasCompleteListener;
}
} else {

totalTime = this.totalTime;

if (mLoop && mCurrentTime >= totalTime)
{
mCurrentTime = 0.0;
mCurrentFrame = 0;
}

if (mCurrentTime < totalTime)
{
mCurrentTime += passedTime;
finalFrame = mTextures.length - 1;

while (mCurrentTime > mStartTimes[mCurrentFrame] + mDurations[mCurrentFrame])
{
mCurrentFrame++;
if (mCurrentFrame == finalFrame)
{
if (mLoop && !hasCompleteListener)
{
mCurrentTime -= totalTime;
mCurrentFrame = 0;
}
else
{
breakAfterFrame = true;
restTime = mCurrentTime - totalTime;
dispatchCompleteEvent = hasCompleteListener;
mCurrentFrame = finalFrame;
mCurrentTime = totalTime;
}
}
else
{
mCurrentFrame++;
}

var sound:Sound = mSounds[mCurrentFrame];
if (sound) sound.play();
if (breakAfterFrame) break;
}
var sound:Sound = mSounds[mCurrentFrame];
if (sound) sound.play();
if (breakAfterFrame) break;

// special case when we reach *exactly* the total time.
if (mCurrentFrame == finalFrame && mCurrentTime == totalTime)
dispatchCompleteEvent = hasCompleteListener;
}

// special case when we reach *exactly* the total time.
if (mCurrentFrame == finalFrame && mCurrentTime == totalTime)
dispatchCompleteEvent = hasCompleteListener;
}

if (mCurrentFrame != previousFrame)
Expand All @@ -291,6 +365,12 @@ package starling.display
var numFrames:int = mTextures.length;
return mStartTimes[int(numFrames-1)] + mDurations[int(numFrames-1)];
}

// /** The total duration of the clip in seconds. */
// public function get totalSectionTime():Number
// {
// return mStartTimes[int(mSectionEndFrame-1)] + mDurations[int(mSectionEndFrame-1)]-mDurations[int(mSectionEndFrame-1)];
// }

/** The time that has passed since the clip was started (each loop starts at zero). */
public function get currentTime():Number { return mCurrentTime; }
Expand All @@ -315,8 +395,37 @@ package starling.display
texture = mTextures[mCurrentFrame];
if (mSounds[mCurrentFrame]) mSounds[mCurrentFrame].play();
}

/** The default number of frames per second. Individual frames can have different

/** The frame number where section start. */
public function get sectionStartFrame():int { return mSectionStartFrame; }
public function set sectionStartFrame(value:int):void
{
// Set value
mSectionStartFrame=value;

// Clamp the sectionLength
if(mSectionStartFrame+mSectionTotalFrame>mTextures.length) mSectionTotalFrame=mTextures.length-mSectionStartFrame;

// Set End frame
mSectionEndFrame=mSectionStartFrame+mSectionTotalFrame-1;
}

/** Total number of frames for current section. */
public function get sectionTotalFrame():uint { return mSectionTotalFrame; }
public function set sectionTotalFrame(value:uint):void
{
// Set value
mSectionTotalFrame=value;

// Clamp the sectionLength
if(mSectionStartFrame+mSectionTotalFrame>mTextures.length) mSectionTotalFrame=mTextures.length-mSectionStartFrame;

// Set End frame
mSectionEndFrame=mSectionStartFrame+mSectionTotalFrame-1;

}

/** The default number of frames per second. Individual frames can have different
* durations. If you change the fps, the durations of all frames will be scaled
* relatively to the previous value. */
public function get fps():Number { return 1.0 / mDefaultFrameDuration; }
Expand Down